Casablanca Field, a depleted karstic oil reservoir for geological storage of CO2
|
|
- Richard Morton
- 6 years ago
- Views:
Transcription
1 Casablanca Field, a depleted karstic oil reservoir for geological storage of CO2 Virginie Mignot 1, Yann Le Gallo **1, Jean-Claude Lecomte 1, Tristan Euzen 1, Tomas Vallaure 2, Juan Mallo 2 1 Institut Français du Pétrole (IFP), Rueil-Malmaison, France 2 REPSOLYPF, Madrid, Spain Summary The study of Casablanca field case for CO 2 storage is of major interest for several reasons: offshore reservoir, complex effective porosity network (called fractures in the text) carbonate reservoir related to complex karstic geology and diagenetic evolution of carbonate reservoir, depleted oil reservoir near the end of production, large pressure support due to an active aquifer. Considering the reservoir heterogeneity and the specificity of the data required to assess CO 2 relationships with host rock and fluids at the reservoir, the available data is somewhat insufficient thus, an optimized methodology has been followed to build a consistent reservoir model. This model has been used to study CO 2 injection scenarios and will be used for long term behavior assessment in the near future. The full study will ascertain the ability of this field to be used as a safe geological CO 2 storage. Introduction A main objective of the CASTOR European project is to contribute to the feasibility and acceptance of the concept of geological storage of CO 2 and to validate this concept on real sites. The aim of this project is to develop and apply a methodology for the selection and the secure management of storage sites by improving assessment methods, defining acceptance criteria, and developing a strategy for safety-focused, cost-effective site monitoring. This paper gives some insight of one of the four field cases treated in this project, namely the Casablanca field case. Casablanca oil field, operated by Repsol-YPF is located in the Mediterranean sea on the East coast of Spain, 43 km from Tarragona. The field was discovered in 1975 by Chevron. Its production started in Cumulative production Casablanca is 143 Mbbls as of August Since the oil production is declining and the economic limit of the field will be reached in the next few years, Repsol-YPF is evaluating the possibility of using this field for storage of the tons of CO 2 per year produced by its Tarragona refinery (20% of refinery's total yearly production). The Casablanca field case in the CASTOR project has been divided into several steps: geological study, reservoir modeling, forecast of CO 2 injection, wells integrity and long term behavior of the CO 2 in the subsurface. This paper addresses the first three steps of the study with special emphasis on the work methodology. Brief geological description of the offshore Casablanca field. The Casablanca oil-field is located along the Montanazo ridge on the south-east flank of the Tarragona trough and produce oil from karstified and fractured Jurassic-Cretaceous carbonates. It is considered as paleogeomorphic trap (Watson, 1982), as the hydrocarbons were trapped in hills of Mesozoic karst ** Presenter : Yann.le.gallo@ifp.fr, Corresponding Author : J-Claude.lecomte@ifp.fr, Full Paper GHGT-8 1
2 sealed by Neogene deposits. The Casablanca field was sourced from the Early Miocene Casablanca Shale. The oil migration began in early Pliocene in the Tarragona trough. The structure of the field, which measures 1 by 11 km in map view and covers 10.4 km2, portrays the karsted and eroded remnant of a paleotopographic, fault-bounded ridge. Five prominent culminations, representing the tops of buried hills, account for most of the significant oil production from the field (Lomando et al., 1993). The onshore Garraf horst is located along the Catalan Coastal Range, about 20 km south-west of Barcelona between the Vallès-Penedes graben and the Barcelona Graben This horst is limited to the northwest by NE-SW normal faults controlling the onlap of the Neogene sediments on the Mezosoic horst flank and to the northeast by NW-SE vertical strike-slip faults. The onshore Garraf outcrop provides the best general modern analogue for the karst development in offshore reservoirs, because of the preservation of Tertiary morphologies. The analysis of the modern karst system of the Garraf area provides information on the factors controlling the distribution of porosity related to the Paleogene karstification processes. The Garraf outcrop analogue provides useful information about what would be the Casablanca karst system during the Paleogene and its evolution during the rifting and early burial history. The identification of paleomorphologically controlled enhanced permeability zones can be used to interpret reservoir properties at the top of the reservoir, below the unconformity. However, the primary porosity of the Paleogene karst was mostly obliterated as shown by the well cores and outcrop data. The analysis of the outcrops of the Garraf area has shown that the top Mesozoic unconformity is not a sharp surface, but involved locally complex brecciated zones that may correspond to good reservoir bodies (casquetes). Finally, Late Miocene and Pliocene burial history was associated with hydrothermal activity along major faults, fractures and brecciated zones, dramatically enhancing the reservoir properties and responsible for the actual effective porosity network. However, the outcrop data do not provide information on the Late Pliocene hydrothermal karstification and dolomitization observed offshore in the Casablanca field, because of different burial history of the onshore Mesozoic rocks. From regional geological knowledge, from analogue outcrops studies, from well logs interpretation and from long term production data, we have inferred and decided to start static reservoir modeling with the following basic assumptions : - concerning the reservoir matrix petrophysical properties, we will distinguish brecciated zones and non brecciated zones ; - petrophysical properties (porosity and permeability) of the matrix are relatively low except in the north of the structure where vuggy cretaceous sediments are present. Matrix petrophysical properties are unable to explain existing long term production data. - dynamic reservoir behavior of Casablanca field could be mainly explained by opened tectonic fractures and faults, by karstic enlarged open fractures, by reactivated interbreccia porosity and very high connectivity between probable multi-levels of collapsed or filled paleocave systems. Except in the northern part of the field, matrix porosity has not been affected by late corrosive hydrothermal fluids and is influence on productivity will be negligible. As usual in collapsed or filled paleocave systems, it is very difficult to extract detailed information concerning the internal architecture of the reservoir from seismic data. The only seismic valuable information is the actual topography of the reservoir. If in first approximation, we assume that this topography is more or less an image of the paleotopography, it would be possible to identify the surface paleo drainage system and its relationships with karst system. Rain fall drainage system could be associated with karst features, vertical shafts, dolines and paleocave systems and this at different scales (fractal system). On Garraf outcrops, 3D Full Paper GHGT-8 2
3 polyhedrons structures seem to be limited by fracturation network or swarms. Due to the difficulties to extract relevant information from available data to build a detailed 3D reservoir model, we proposed to apply the following scenario. Static reservoir modeling will be started by following steps : - Top of reservoir will be seismic depth interpretation including upper breccia zone on the flanks. - Base of reservoir will be an estimation of the initial water level. - Simple layering in Jurassic and Cretaceous honoring well data analysis will be provided. - Initial zonation in reservoir in terms of brecciated and non brecciated zones using petrophysical knowledge. - Rough estimate of OOIP (original oil in place) and matrix properties will give indication for % of OOIP stored in effective porosity network ; - Information about paleodrainage system could be used to define model zones. All these parameters will be inferred from existing data (3D seismic surveys, well logs, core descriptions, well test interpretations) and a priori adjusted to realistic values. The pertinence of these basic assumptions will strongly influence quality of final fluid flow reservoir model. From these initial data and hypothesis, different reservoir models will be hydrodynamically tested with respect to the production data history on a well by well basis. IFP Optimisation tools were used to reach this aim in close cooperation with the Repsol team. Construction of a reservoir model of the Casablanca field Methodology used to build a reservoir model of the Casablanca field Due to the scarcity of geological data and to the complexity of the effective porous network, it was not possible to construct a static detailed 3D geological model of the Casablanca field. The chosen methodology was to build a simple reservoir model and refine it iteratively with new geological features to better fit the well production history. This has been done in two main steps: the first one considered simple reservoir models and the second one more complex reservoir models with new geological data integrated during the study. History matching parameters were water production rates and total fluid rates (water and oil, no free gas exist as the reservoir is strongly under saturated due to a very active aquifer) and well bottom hole pressures. Once the model has been considered sufficiently matched, CO 2 injection scenarios investigate its migration in the reservoir. First reservoir models During the first step of the study, the geological data used for the model were the structural top and bottom (OWC) surfaces of the reservoir, no other geological and petrophysical data was available. Two successive reservoir models were used for hydrodynamic simulations: - a homogeneous stratified reservoir model: the highly fractured (understand effective porosity network created by late hydrothermal dissolution) reservoir has been considered first to behave like an equivalent homogeneous reservoir with one permeability ratio (vertical permeability by horizontal permeability), one horizontal permeability and one porosity value determined from the Original Oil In Place value (OOIP). Results of the simulation indicated the impossibility of matching production rates with a homogeneous reservoir model. This first reservoir model has highlighted the necessity of splitting the reservoir into homogeneous stratigraphical strata. - A stratigraphic layering with an average dip angle of 2 degrees to the North was Full Paper GHGT-8 3
4 subsequently added, based on biostratigraphical data. Porosity was homogeneous in this second reservoir model but horizontal permeability and permeability ratio were different in each strata. The history matching of this first homogeneous layered reservoir model using a history matching optimization IFP software called CONDOR has underlined the possibility of matching the production of some of the production wells. However, it has also shown that it has not been possible to reproduce the sharp and fast water entry on a few wells or the odd behavior of some others. Geological brainstorming One hypothesis for the sharp and fast water production in some wells and difficulty to match their production is the probable existence of fractures corridors (swarms) located in the vicinity of these wells. Outcrop studies along the Spanish coast showed the presence of polygonal fractures arrangement at different scales in similar karstic formations. Those fractures are principally located in low topographic points and could be associated with paleo drainage area. The presence of several stratigraphic layers with an average dip angle of 2 degrees, previously arbitrarily delimited, is verified by a biostratigraphycal and petrophysical study showing the presence of wells markers splitting the reservoir in four stratigraphic strata. The necessity of being heterogeneous concerning porosity, as concerning permeability which is already done, has been underlined by the porosity value given on each well studied. Fractures described previously were modeled by high vertical permeability zone over the entire reservoir model. The different geological and petrophysical layering hypothesis were evaluated using Athos-First, IFP reservoir simulator. The best phenomenological reservoir model with respect to production history matching assumes no fractures corridors, four stratigraphic strata and a layering with a dip angle of 2 degrees to the North. Improvement of the reservoir model, second step Only local porosity values are known and horizontal permeability and permeability ratio values in each strata came from the first reservoir study. A workflow was designed to history matched oil and water productions by optimizing the petrophysical properties heterogeneities and accuracies under available constraints (permeability and porosity range, porosity measurements, production data, pressure and OOIP). As no information existed on the petrophysical property distribution, a particular workflow has been used to adjust both petrophysical properties and their distribution within the Casablanca field. First, the influencing petrophysical parameters (porosity, horizontal permeability and permeability ratio) were identified for each well with an IFP software called COUGAR. Then, automatic optimization on porosity, horizontal permeability and permeability ratio was carried out with an IFP software called CONDOR to history match water and oil production and well pressure. COUGAR which is based on the experimental design approach, ranks the uncertain parameters with respect to a user defined objective function, for instance water rate versus time on a well by well basis. This tool determines and launches the minimum number of fluid flow simulations required to get this ranking. Once the parameter ranking has been done, it is possible to eliminate the uncertain parameters that have a limited influence on the specified objective function. In Casablanca case, fifteen uncertain parameters (only porosity and permeability of the different layers) were considered. Thirty reservoir simulations were required to assess the influence of each parameter and rank them. For each uncertain parameter, an interval between a minimum value and a maximum value was defined. Porosity intervals came from petrophysical data. For K h and K v /K h, intervals, the minimum and maximum values came from the first results of the reservoir study. COUGAR results indicated that each well is influenced by a group of parameters different from one group to another. All parameters had opposite influence on different wells influenced. In the case of "wells incompatibility", hypotheses Full Paper GHGT-8 4
5 were made to better match well productions and the considered strata was split horizontally (reference to xy zone related to paleodrainage areas) with respect to the studied petrophysical property i.e. a well in each horizontal domain. Thus, petrophysical heterogeneities distribution enable accurate match of the water and oil production rates. The CONDOR tool is designed to perform automatic history matching using several reservoir simulators which, in this study, is Athos-First. After iterations CONDOR obtains the best match using least square optimization of one or several objective functions with the user defined uncertain parameters. In Casablanca field case, the objective function minimized the differences between observed and calculated oil and water rates. Since all wells were not influenced by the same parameters, the optimization was carried for each uncertain parameter out on well by well basis, then kept constant these parameters when matching another well, and so one until all wells were matched. With this approach, one well after the other, the number of uncertain parameters in the model has decreased at each step. This approach has allowed to verify and to guide history matching at each step. Each strata with two wells which could not be matched with the same parameter values, was subsequently split in new zones considering the different values of the parameters before carrying out the matching process. Results Figure 1: History matching evolution in well Casablanca-6 At the end of the matching process, petrophysical parameters distribution and values were optimized. The final reservoir model contains: six horizontal permeability, ten permeability ratio and ten porosity zones. The intervals of values are respectively: 350 md to md, to 0.99 and 0.06 to These results are consistent with the parameter range provided by Repsol-YPF at the beginning of the study. The permeability are really high with respect since the Casablanca field is highly fractured with apertures up to 3 mm and oil is located only in the fractures and not in the matrix. Concerning the matched parameters, aquifer strength has been matched simultaneously to get the correct pressure variations during production. The aquifer maintain the pressure within 10 bars of the initial pressure. Finally, with the reservoir model with no explicit fractures corridors, with four heterogeneous petrophysical strata concerning porosity, horizontal permeability and permeability ratio and with a layering with a dip angle of 2 degrees to the North, seven wells have been history matched, three wells have been history matched until Electro submersible pumps (ESP) have been installed on those three wells in 2001 which could be an a priori explanation for the problem of history matching since this date. Concerning the pressure variations during production, the OOIP and the recovery factor, the simulated values were closed to the real one. The workflow optimized the reservoir model of the Casablanca field with the limited available data. Full Paper GHGT-8 5
6 This workflow helped to understand and define the petrophysical values distribution accurately within the reservoir model. The next step is the simulation of CO 2 injection in the Casablanca field. CO 2 injection The reservoir model described before was matched using a Black-Oil model. However, CO 2 injection requires compositional modeling approach to account for CO 2 dissolution in water and oil. The compositional approach defines the fluid behavior with Peng-Robinson equation of state but requires larger CPU time. The CO 2 injection was modeled using COORES the research fluid flow code dedicated to CO 2 geological storage. Compositional PVT data from the Casablanca field was used to model the dissolution of CO 2 in oil and water at the reservoir conditions. Switching between l from Athos-First to COORES requires minor changes of the datasets as the two software are compatible. Since PVT analyses are still in progress, the CO 2 injection results are still preliminary. The injection was modeled using a Dead-Oil model which enables COORES to compute gas migration within the reservoir. The CASA-11 well, the down-deepest one was selected to injected CO 2 to allow a better sweep efficiency of the reservoir. The scenario considered EOR but with a reduced CO2 injection rate ( tons of CO 2 per year) to maintain local reservoir pressure below its initial values thus avoiding any fracturation. This safety constraint strongly restricts the injection potential of the field. The production of all wells but CASA-11 was set to their values at the end of history match CO 2 breakthrough occurred in the neighboring well, CASA-12, after ten year of injection i.e tons of CO 2. which represents only 1.5 year of CO 2 production from the Tarragona refinery. No significant over pressuring of the reservoir was computed. CO2 EOR optimization strategy is currently investigated. Conclusion The study of Casablanca field case for CO 2 storage is of major interest for several reasons: offshore reservoir, complex effective porosity network carbonate reservoir related to complex karstic geology and late diagenetic evolution of carbonate reservoir, depleted oil reservoir at end of production, huge aquifer maintaining the pressure. Considering the heterogeneity of the reservoir and the specificity of the data required to assess CO 2 relationships with host rock and fluids at the reservoir, the available data is somewhat insufficient thus, an optimized methodology has been followed to build a consistent reservoir model. This model has been used to study CO 2 injection scenarios and will be used for long term behavior assessment in the next future. The full study will ascertain the ability of this field to be used as a safe geological CO 2 storage. We have demonstrated that in such a karstic reservoir with scarce geological data comparing to effective complexity, it is nevertheless possible to build a coherent reservoir model matching well by well more than 25 years of production. The use of an appropriate methodology like previously described in this paper with the help of optimization tools like COUGAR and CONDOR is an effective way to obtain a realistic and efficient reservoir model to start CO2 injection modelisations. Full Paper GHGT-8 6
Modelling of CO 2 storage and long term behaviour in the Casablanca field
Available online at www.sciencedirect.com Energy Procedia 1 (2009) (2008) 2919 2927 000 000 GHGT-9 www.elsevier.com/locate/xxx www.elsevier.com/locate/procedia Modelling of CO 2 storage and long term behaviour
More informationGeomechanics for reservoir and beyond Examples of faults impact on fluid migration. Laurent Langhi Team Leader August 2014
Geomechanics for reservoir and beyond Examples of faults impact on fluid migration Laurent Langhi Team Leader August 2014 Reservoir Geomechanics It is critical to understand the mechanical behaviour of
More informationCharacterizing Seal Bypass Systems at the Rock Springs Uplift, Southwest Wyoming, Using Seismic Attribute Analysis*
Characterizing Seal Bypass Systems at the Rock Springs Uplift, Southwest Wyoming, Using Seismic Attribute Analysis* Yuri Ganshin 1 and Fred McLaughlin 1 Search and Discovery Article #80483 (2015)** Posted
More informationAPPENDIX C GEOLOGICAL CHANCE OF SUCCESS RYDER SCOTT COMPANY PETROLEUM CONSULTANTS
APPENDIX C GEOLOGICAL CHANCE OF SUCCESS Page 2 The Geological Chance of Success is intended to evaluate the probability that a functioning petroleum system is in place for each prospective reservoir. The
More informationMUHAMMAD S TAMANNAI, DOUGLAS WINSTONE, IAN DEIGHTON & PETER CONN, TGS Nopec Geological Products and Services, London, United Kingdom
Geological and Geophysical Evaluation of Offshore Morondava Frontier Basin based on Satellite Gravity, Well and regional 2D Seismic Data Interpretation MUHAMMAD S TAMANNAI, DOUGLAS WINSTONE, IAN DEIGHTON
More informationAvailable online at ScienceDirect. Energy Procedia 114 (2017 )
Available online at www.sciencedirect.com ScienceDirect Energy Procedia 114 (2017 ) 2772 2780 13th International Conference on Greenhouse Gas Control Technologies, GHGT-13, 14-18 November 2016, Lausanne,
More informationStorage 6 - Modeling for CO 2 Storage. Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia
Storage 6 - Modeling for CO 2 Storage Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia Regina, Sask., Canada, 17-22 July, 2016 Modeling 2 What
More informationStorage 4 - Modeling for CO 2 Storage. Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia
Storage 4 - Modeling for CO 2 Storage Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia 1 Modelling 2 On Models. All models are wrong. some
More informationTim Carr - West Virginia University
Tim Carr - West Virginia University Elements Source Rock Migration Route Reservoir Rock Seal Rock Trap Processes Generation Migration Accumulation Preservation 2 Reservoir Porous & Permeable Rock Suitable
More informationAn Overview of the Tapia Canyon Field Static Geocellular Model and Simulation Study
An Overview of the Tapia Canyon Field Static Geocellular Model and Simulation Study Prepared for Sefton Resources Inc. Jennifer Dunn, Chief Geologist Petrel Robertson Consulting Ltd. Outline Background
More informationeni s.p.a. upstream & technical services
eni s.p.a. upstream & technical services 2013-2014 Master in Petroleum Engineering and Operations Congo & Angola Offshore-Congo River Basin Characteristics, exploitation approach and fields analogues Author:
More informationOpportunities in Oil and Gas Fields Questions TABLE OF CONTENTS
TABLE OF CONTENTS A. Asset... 3 1. What is the size of the opportunity (size the prize)?... 3 2. Volumetric Evaluation... 3 3. Probabilistic Volume Estimates... 3 4. Material Balance Application... 3 5.
More informationPETROLEUM GEOSCIENCES GEOLOGY OR GEOPHYSICS MAJOR
PETROLEUM GEOSCIENCES GEOLOGY OR GEOPHYSICS MAJOR APPLIED GRADUATE STUDIES Geology Geophysics GEO1 Introduction to the petroleum geosciences GEO2 Seismic methods GEO3 Multi-scale geological analysis GEO4
More informationA NEW APPROACH FOR QUANTIFYING THE IMPACT OF GEOSTATISTICAL UNCERTAINTY ON PRODUCTION FORECASTS: THE JOINT MODELING METHOD
A NEW APPROACH FOR QUANTIFYING THE IMPACT OF GEOSTATISTICAL UNCERTAINTY ON PRODUCTION FORECASTS: THE JOINT MODELING METHOD IAMG, Cancun, September 6-1, 001 Isabelle Zabalza-Mezghani, IFP Emmanuel Manceau,
More informationSTORAGE POTENTIAL OF POLAND (THE BALTIC BASIN) Adam Wójcicki & Jolanta Pacześna, PGI-NRI
STORAGE POTENTIAL OF POLAND (THE BALTIC BASIN) Adam Wójcicki & Jolanta Pacześna, PGI-NRI.. Espoo, 23.05.2013 CO2 storage projects Poland and Europe 1995-..Borzęcin gas field (acidic gas 60% CO2; INiG,
More informationEGAS. Ministry of Petroleum
EGAS Ministry of Petroleum EGAS Ministry of Petroleum About The Block Location: N. Thekah offshore block is located at about 56 km to the north of the Mediterranean shore line, 85 km to the north west
More informationExploration, Drilling & Production
Nontechnical Guide to PETMOLEUM Geology, Exploration, Drilling & Production Third Edition Norman J. Hyne, Ph.D. Contents Preface *i Introduction 1 The Nature of Gas and Oil 1 Petroleum 1 The Chemistry
More informationConditional Simulation of Subseismic Mega Karstic Features
Conditional Simulation of Subseismic Mega Karstic Features Amir H. Hosseini and Clayton V. Deutsch The prediction of the location and size of mega karstic features such as sinkholes and caves in carbonate
More informationThe Alba Field: Improved Reservoir Characterisation using 4D Seismic Data. Elaine Campbell Oliver Hermann Steve Dobbs Andrew Warnock John Hampson
The Alba Field: Improved Reservoir Characterisation using 4D Seismic Data Elaine Campbell Oliver Hermann Steve Dobbs Andrew Warnock John Hampson Chevron 2005 Alba Field Location Equity: Chevron 23% (operator)
More informationWP2 country review Lithuania
Saulius Sliaupa Rasa Sliaupiene institute of Geology and Geography WP2 country review Lithuania CO 2 emission in Lithuania (2005) 94 sources listed in the CO2 trading system of Lithuania in 2005 CO 2 emissions
More informationIntegrated well log and 3-D seismic data interpretation for the Kakinada area of KG PG offshore basin
IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG) e-issn: 2321 0990, p-issn: 2321 0982.Volume 5, Issue 4 Ver. II (Jul. Aug. 2017), PP 01-05 www.iosrjournals.org Integrated well log and 3-D seismic
More informationBlocks 31, 32, 33, 34, 35 & 36/03 Southeast Offshore Vietnam
Blocks 31, 32, 33, 34, 35 & 36/03 Southeast Offshore Vietnam Block 31 32 33 34 35 36/03 Area (km 2) 5,036 4,440 4,630 4,700 4,630 2,950 Sea level (m) 20 20-30 30-40 50 50 50 Seismic 2D (km) 1,294 685 431
More informationStructural Style and Tectonic Evolution of the Nakhon Basin, Gulf of Thailand
Structural Style and Tectonic Evolution of the Nakhon Basin, Gulf of Thailand Piyaphong Chenrai Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok
More informationKnow Before You Go. Steve O Connor. Bryony Youngs. How GeoPrediction helps with Production Optimization and Assessing the Size of the Prize
Know Before You Go How GeoPrediction helps with Production Optimization and Assessing the Size of the Prize Steve O Connor Global Technical Lead, Geopressure Bryony Youngs Reservoir Portfolio Development
More informationWP 4.1. Site selection criteria and ranking methodology. Karen Kirk
WP 4.1 Site selection criteria and ranking methodology Karen Kirk 1 Basic site selection criteria Sufficient depth and storage capacity supercritical CO 2 below 700-800 m (rule of thumb) 2 Variation of
More informationBlock 43B - Onshore Oman
Block 43B - Onshore Oman SUMMARY Block 43B is an 11,967 km 2 area located along the coastal area of Oman north of the Hajar Mountains. This is an unexplored region, both geographically and stratigraphically.
More informationJordan. Target Exploration. Target Exploration
Page1 barr Target Exploration Target Exploration barr Target Exploration Target Exploration Petroleum Potential of Wadi Sirhan Basin Jordan Petroleum Potential of Wadi Sirhan Basin, Jordan Sequence Stratigraphy,
More informationStructural and Petrophysical Characterization of Mixed Drain/Barrier Fault Zones in Carbonates: Example from the Castellas Fault (SE France)*
Structural and Petrophysical Characterization of Mixed Drain/Barrier Fault Zones in Carbonates: Example from the Castellas Fault (SE France)* Christophe Matonti 1, Juliette Lamarche 1, Yves Guglielmi 1,
More informationAAPG HEDBERG RESEARCH CONFERENCE
AAPG HEDBERG RESEARCH CONFERENCE Reservoir Scale Deformation - Characterization and Prediction June 22-28, 1997, Bryce, Utah Stratigraphic Controls on Fracture Distribution in the Austin Chalk: An Example
More informationP026 Outcrop-based reservoir modeling of a naturally fractured siliciclastic CO 2 sequestration site, Svalbard, Arctic Norway
P026 Outcrop-based reservoir modeling of a naturally fractured siliciclastic CO 2 sequestration site, Svalbard, Arctic Norway K. Senger (University of Bergen / CIPR), K. Ogata* (University Centre in Svalbard),
More informationTu D Understanding the Interplay of Fractures, Stresses & Facies in Unconventional Reservoirs - Case Study from Chad Granites
Tu D201 04 Understanding the Interplay of Fractures, Stresses & Facies in Unconventional Reservoirs - Case Study from Chad Granites D. Lirong (Chinese National Petroleum Company Ltd. (Chad)), C. Shrivastava*
More informationEGAS. Ministry of Petroleum
EGAS Ministry of Petroleum EGAS Ministry of Petroleum About The Block Location: N. El Arish offshore block is located in the extreme eastern part of the Egypt s economic water border and bounded from the
More informationReservoir Uncertainty Calculation by Large Scale Modeling
Reservoir Uncertainty Calculation by Large Scale Modeling Naeem Alshehri and Clayton V. Deutsch It is important to have a good estimate of the amount of oil or gas in a reservoir. The uncertainty in reserve
More informationMeandering Miocene Deep Sea Channel Systems Offshore Congo, West Africa
Meandering Miocene Deep Sea Channel Systems Offshore Congo, West Africa S. Baer* (PGS), J. E. Comstock (PGS), K. Vrålstad (PGS), R. Borsato (PGS), M. Martin (PGS), J.P. Saba (SNPC), B. Débi-Obambé (SNPC)
More informationMaturity Modeling of Gomin and South Gomin fields Southern Pattani Basin, Gulf of Thailand
Maturity Modeling of Gomin and South Gomin fields Southern Pattani Basin, Gulf of Thailand Patinya Jaithan Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn University,
More informationArticle 11 Monte Carlo Simulation/Risk Assessment (cont.)
RESE SERVOIR ENG NGINE INEERING FOR GEOLO OLOGIS ISTS Article 11 Monte Carlo Simulation/Risk Assessment (cont.) by Ray Mireault, P. Eng. and Lisa Dean, P. Geol., Fekete Associates Inc. The second article
More informationProject Document. BASE - Basement fracturing and weathering on- and offshore Norway Genesis, age, and landscape development
Project Document BASE - Basement fracturing and weathering on- and offshore Norway Genesis, age, and landscape development Partners: Geological Survey of Norway (NGU), SINTEF Petroleum Research (SINTEF)
More informationControls on clastic systems in the Angoche basin, Mozambique: tectonics, contourites and petroleum systems
P2-2-13 Controls on clastic systems in the Angoche basin, Mozambique: tectonics, contourites and petroleum systems Eva Hollebeek, Olivia Osicki, Duplo Kornpihl Schlumberger, London, UK Introduction Offshore
More informationCalcite Cements in Middle Devonian Dunedin Formation:
Geochemistry of the Fracture-Filling Dolomite and Calcite Cements in Middle Devonian Dunedin Formation: Implication for the Strata Dolomitization Model Sze-Shan Yip 1, Hairuo Qing 1 and Osman Salad Hersi
More informationIJISET - International Journal of Innovative Science, Engineering & Technology, Vol. 2 Issue 9, September 2015.
Prediction of petrophysical parameters applying multi attribute analysis and probabilistic neural network techniques of seismic data for Komombo Basin, Upper Egypt. Othman, A. A. A. 1, Ewida, H. F. 2,
More informationBest Practice Reservoir Characterization for the Alberta Oil Sands
Best Practice Reservoir Characterization for the Alberta Oil Sands Jason A. McLennan and Clayton V. Deutsch Centre for Computational Geostatistics (CCG) Department of Civil and Environmental Engineering
More informationRisk Factors in Reservoir Simulation
Risk Factors in Reservoir Simulation Dr. Helmy Sayyouh Petroleum Engineering Cairo University 12/26/2017 1 Sources Of Data Petro-physical Data Water saturation may be estimated from log analysis, capillary
More informationReservoir Management Background OOIP, OGIP Determination and Production Forecast Tool Kit Recovery Factor ( R.F.) Tool Kit
Reservoir Management Background 1. OOIP, OGIP Determination and Production Forecast Tool Kit A. Volumetrics Drainage radius assumption. B. Material Balance Inaccurate when recovery factor ( R.F.) < 5 to
More informationHydrothermal Systems as Analogs for Breached hdtraps and Subsurface Healing: Outcrop and Subsurface Examples and Escape Mechanisms
Hydrothermal Systems as Analogs for Breached hdtraps and Subsurface Healing: Outcrop and Subsurface Examples and Escape Mechanisms David Bowen, David Lageson, Lee Spangler (Montana State University) Bryan
More informationA comparison of structural styles and prospectivity along the Atlantic margin from Senegal to Benin. Peter Conn*, Ian Deighton* & Dario Chisari*
A comparison of structural styles and prospectivity along the Atlantic margin from Senegal to Benin Overview Peter Conn*, Ian Deighton* & Dario Chisari* * TGS, Millbank House, Surbiton, UK, KT6 6AP The
More informationHydrocarbon prospectivity of the Basement of Mumbai High Field
P-374 Summary Hydrocarbon prospectivity of the Basement of Mumbai High Field P.Satyanaryana*, MH Asset, ONGC, Mumbai, P.K.Sinha, KDMIPE, ONGC, Dehradun, D.K.Gupta, E&D. Dte., ONGC, Dehradun, A.V.Sathe,
More informationBertrand Six, Olivier Colnard, Jean-Philippe Coulon and Yasmine Aziez CGGVeritas Frédéric Cailly, Total
4-D Seismic Inversion: A Case Study Offshore Congo Bertrand Six, Olivier Colnard, Jean-Philippe Coulon and Yasmine Aziez CGGVeritas Frédéric Cailly, Total Summary The first 4D seismic survey in Congo was
More informationTraining Venue and Dates Ref # Reservoir Geophysics October, 2019 $ 6,500 London
Training Title RESERVOIR GEOPHYSICS Training Duration 5 days Training Venue and Dates Ref # Reservoir Geophysics DE035 5 07 11 October, 2019 $ 6,500 London In any of the 5 star hotels. The exact venue
More informationP066 Duplex Wave Migration for Coal-bed Methane Prediction
P066 Duplex Wave Migration for Coal-bed Methane Prediction N. Marmalevskyi* (Ukrainian State Geological Prospecting Institute), A. Antsiferov (UkrNIMI), Z. Gornyak (Ukrainian State Geological Prospecting
More informationTo date exploration in the Bulgarian Black Sea has been
SPECIAL The Black SECTION: Sea The region Black Sea region Play types and hydrocarbon potential of the deepwater Black Sea, NE Bulgaria GABOR TARI, JULIA DAVIES, RUDOLF DELLMOUR, and ELIZA LARRATT, OMV
More informationGeologic influence on variations in oil and gas production from the Cardium Formation, Ferrier Oilfield, west-central Alberta, Canada
Geologic influence on variations in oil and gas production from the Cardium Formation, Ferrier Oilfield, west-central Alberta, Canada Marco Venieri and Per Kent Pedersen Department of Geoscience, University
More informationMinistry of Oil and Minerals Petroleum Exploration & Production Authority BLOCK 80 (WADI SARR)
Ministry of Oil and Minerals Petroleum Exploration & Production Authority BLOCK 80 (WADI SARR) The Wadi Sarr Block (80) occupies an area of 1961 km 2 on the Sayun- Masilah Basin in the central Yemen. Block
More informationSarah Jane Riordan. Australian School of Petroleum University of Adelaide March 2009
Managing the Interdisciplinary Requirements of 3D Geological Models Sarah Jane Riordan Australian School of Petroleum University of Adelaide March 2009 Thesis submitted in accordance with the requirements
More informationAssessing the Effect of Realistic Reservoir Features on the Performance of Sedimentary Geothermal Systems
GRC Transactions, Vol. 39, 205 Assessing the Effect of Realistic Reservoir Features on the Performance of Sedimentary Geothermal Systems Luis E. Zerpa, JaeKyoung Cho, and Chad Augustine 2 Colorado School
More informationNOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used
More informationF003 Geomodel Update Using 4-D Petrophysical Seismic Inversion on the Troll West Field
F003 Geomodel Update Using 4-D Petrophysical Seismic Inversion on the Troll West Field K. Gjerding* (Statoil), N. Skjei (Statoil), A. Norenes Haaland (Statoil), I. Machecler (CGGVeritas Services) & T.
More informationRELINQUISHMENT REPORT. License P1546 Block April 2009
RELINQUISHMENT REPORT License P1546 Block 110-01 14 April 2009 Sherritt International Oil and Gas Limited 2000, 425-1 st street S.W., Calgary, Alberta Canada T2P 3L8 Telephone (403) 260-2900 Fax (403)
More informationIN POLAND. Adam WÓJCICKI. National Research Institute
CO2 GEOLOGICAL STORAGE POTENTIAL IN POLAND Adam WÓJCICKI Polish Geological Institute National Research Institute Warsaw, June 2009 CO2 geological sequestration (definitions) Carbon capture and storage
More informationBulletin of Earth Sciences of Thailand
Quantitative Seismic Geomorphology of Early Miocene to Pleistocene Fluvial System of Northern Songkhla Basin, Gulf of Thailand Oanh Thi Tran Petroleum Geoscience Program, Department of Geology, Faculty
More informationProcess, Zeit Bay Fields - Gulf of Suez, Egypt*
PS Pressure Regime Evaluation, Role, and Contribution in Well Planning and Formation Evaluation Process, Zeit Bay Fields - Gulf of Suez, Egypt* Saber Moustafa Selim 1, Khaled Mohamed Abdallah 1, and Khalaf
More informationBiostratigraphic and Lithostratigraphic Correlation of Sedimentary Strata in the Atlantic Coastal Plain
Biostratigraphic and Lithostratigraphic Correlation of Sedimentary Strata in the Atlantic Coastal Plain Introduction to the Atlantic Coastal Plain (Please read this page prior to doing the lab) The Atlantic
More informationPyrenees Hold Clues to Frac
Pyrenees Hold Clues to Frac Faults and fractures are often an important factor in determining hydrocarbon storage capacity and productivity in reservoirs such as tight carbonates, quartzites and basements.
More informationSeismic stratigraphy, some examples from Indian Ocean, interpretation of reflection data in interactive mode
Seismic stratigraphy, some examples from Indian Ocean, interpretation of reflection data in interactive mode K. S. Krishna National Institute of Oceanography, Dona Paula, Goa-403 004. krishna@nio.org Seismic
More informationFigure 1 Extensional and Transform Fault Interaction, Influence on the Upper Cretaceous Hydrocarbon System, Equatorial Margin, West Africa.
Figure 1 Extensional and Transform Fault Interaction, Influence on the Upper Cretaceous Hydrocarbon System, Equatorial Margin, West Africa. Presented to the 10th PESGB/HGS Conference on Africa E + P September
More informationSimplified In-Situ Stress Properties in Fractured Reservoir Models. Tim Wynn AGR-TRACS
Simplified In-Situ Stress Properties in Fractured Reservoir Models Tim Wynn AGR-TRACS Before the What and the How is Why Potential decrease in fault seal capacity Potential increase in natural fracture
More informationI. INTRODUCTION 1.1. Background and Problem Statement
I. INTRODUCTION 1.1. Background and Problem Statement The declining of global oil and gas reserves has encouraged the exploration campaign to both the frontier area and the revisit to the mature basins.
More informationReservoir characterization
1/15 Reservoir characterization This paper gives an overview of the activities in geostatistics for the Petroleum industry in the domain of reservoir characterization. This description has been simplified
More informationSeismic Geomorphology and Analysis of the Ordovician Paleokarst Drainage System in the Central Tabei Uplift, Northern Tarim Basin, Western China*
Seismic Geomorphology and Analysis of the Ordovician Paleokarst Drainage System in the Central Tabei Uplift, Northern Tarim Basin, Western China* Hongliu Zeng 1, Robert Loucks 1, Xavier Janson 1, Quizhong
More informationIntegrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays
Integrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays AAPG Geosciences Technology Workshops Geomechanics and Reservoir Characterization of Shale and Carbonates July
More informationSeismic Inversion for Reservoir Characterization in Komombo Basin, Upper Egypt, (Case Study).
P P P Ganoub P Geology P P British P and IJISET - International Journal of Innovative Science, Engineering & Technology, Vol. 2 Issue 9, September 2015. Seismic Inversion for Reservoir Characterization
More informationInvestigation of Devonian Unconformity Surface Using Legacy Seismic Profiles, NE Alberta
Investigation of Devonian Unconformity Surface Using Legacy Seismic Profiles, NE Alberta Elahe P. Ardakani and Douglas R. Schmitt Department of Physics, University of Alberta Summary The Devonian Grosmont
More informationCOPYRIGHT. Optimization During the Reservoir Life Cycle. Case Study: San Andres Reservoirs Permian Basin, USA
Optimization During the Reservoir Life Cycle Case Study: San Andres Reservoirs Permian Basin, USA San Andres Reservoirs in the Permian Basin Two examples of life cycle reservoir management from fields
More informationCharacterization of Belloy, Kiskatinaw, and Debolt Water Disposal Zones in the Montney Play Area, NEBC
Characterization of Belloy, Kiskatinaw, and Debolt Water Disposal Zones in the Montney Play Area, NEBC Brad J. Hayes Petrel Robertson Consulting Ltd. www.petrelrob.com Introduction Intensive development
More informationPetroleum geology framework, West Coast offshore region
Petroleum geology framework, West Coast offshore region James W. Haggart* Geological Survey of Canada, Vancouver, BC jhaggart@nrcan.gc.ca James R. Dietrich Geological Survey of Canada, Calgary, AB and
More informationCHAPTER III. METHODOLOGY
CHAPTER III. METHODOLOGY III.1. REASONING METHODOLOGY Analytical reasoning method which used in this study are: Deductive accumulative method: Reservoir connectivity can be evaluated from geological, geophysical
More informationReservoir Geomechanics and Faults
Reservoir Geomechanics and Faults Dr David McNamara National University of Ireland, Galway david.d.mcnamara@nuigalway.ie @mcnamadd What is a Geological Structure? Geological structures include fractures
More informationCurrent challenges at CO 2 Sites
Current challenges at CO 2 Sites Ola Eiken et al., Statoil R&D Force seminar on injection safety 4 th December 2013 Offshore Sleipner Onshore In Salah Sub-sea Snøhvit 1 - Classification: External 2010-09-23
More informationLower Skinner Valley Fill Sandstones: Attractive Exploration Targets on the Northeast Oklahoma Platform*
Lower Skinner Valley Fill Sandstones: Attractive Exploration Targets on the Northeast Oklahoma Platform* By Jim Puckette 1 Search and Discovery Article #10050 (2003) *Adapted from presentation to Tulsa
More informationMethodology: Ranking, Site Assessments & Volumetrics
Methodology: Ranking, Site Assessments & Volumetrics INTRODUCTION Queensland CO 2 Storage Atlas Aim to identify with highest possible certainty prospective basins for geological storage in onshore Queensland
More information23rd World Gas Conference, Amsterdam 2006
23rd World Gas Conference, Amsterdam 2006 CO 2 GEOLOGICAL STORAGE IN FRANCE (PARIS BASIN) IN DEPLETED RESERVOIRS & AQUIFERS Christophe RIGOLLET 1, Samuel SAYSSET 1, Joëlle GITTON 1, Rémi DREUX 1, Emmanuel
More informationBuilding an Integrated Static Reservoir Model 5-day Course
Building an Integrated Static Reservoir Model 5-day Course Prepared by International Reservoir Technologies Lakewood, Colorado http://www.irt-inc.com/ 1 Agenda Day 1 Day 2 Day 3 Day 4 Day 5 Morning Introduction
More informationWestern Kentucky CO 2 Storage Test
Western Kentucky CO 2 Storage Test Principal Investigators: Rick Bowersox - Lexington Dave Williams - Henderson KGS First Friday Seminar Lexington, Kentucky March 4, 2011 The project proceeded in two phases:
More informationCenozoic Extensional Basin Development and Sedimentation in SW Montana
Cenozoic Extensional Basin Development and Sedimentation in SW Montana Robert C. Thomas Department of Environmental Sciences, The University of Montana Western, Dillon, MT 59725, (406) 683-7615, r_thomas@umwestern.edu
More informationHydrocarbon Potential of the Marginal Fields in Niger Delta Oza Field, a case study*
Hydrocarbon Potential of the Marginal Fields in Niger Delta Oza Field, a case study* J.N. Sahu 1, C.H.V. Satya Sai 1, V. Chintamani 1 and C. Vishnu Vardhan 1 Search and Discovery Article #20182 (2012)*
More informationCase Study of the Structural and Depositional-Evolution Interpretation from Seismic Data*
Case Study of the Structural and Depositional-Evolution Interpretation from Seismic Data* Yun Ling 1, Xiangyu Guo 1, Jixiang Lin 1, and Desheng Sun 1 Search and Discovery Article #20143 (2012) Posted April
More informationMIDDLE DEVONIAN PLAY MICHIGAN BASIN OF ONTARIO. Duncan Hamilton
MIDDLE DEVONIAN PLAY MICHIGAN BASIN OF ONTARIO Duncan Hamilton 1 Middle Devonian Pools of the Michigan Basin 375+ Million Barrels Michigan 45+ million Barrels Ontario 2 Outline of Presentation History
More information11301 Reservoir Analogues Characterization by Means of GPR
11301 Reservoir Analogues Characterization by Means of GPR E. Forte* (University of Trieste) & M. Pipan (University of Trieste) SUMMARY The study of hydrocarbon reservoir analogues is increasing important
More informationFRIO BRINE SEQUESTRATION PILOT IN THE TEXAS GULF COAST
I1-2 FRIO BRINE SEQUESTRATION PILOT IN THE TEXAS GULF COAST Susan D. Hovorka and Paul R. Knox Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, The University of Texas
More informationKinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy)
Kinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy) Buttinelli M., Improta L., Bagh S., Chiarabba C. 1/10 The Val
More informationHydrocarbon plays of the Mid North Sea High: an integrated seismic and basin modelling study
Hydrocarbon plays of the Mid North Sea High: an integrated seismic and basin modelling study Stephen Corfield, Julian Moore, Maurice Bamford, Andrew Barnwell and Patrick Barnard -OGA Frontier exploration
More informationDebra K. Gomez 1 and David Brewster 2. Search and Discovery Article #10843 (2016)** Posted March 21, Abstract
PS Petroleum Potential Onshore Southern Madagascar, Morandava Basin, Block 3114* Debra K. Gomez 1 and David Brewster 2 Search and Discovery Article #10843 (2016)** Posted March 21, 2016 *Adapted from poster
More informationA Regional Diagenetic and Petrophysical Model for the Montney Formation, Western Canada Sedimentary Basin*
A Regional Diagenetic and Petrophysical Model for the Montney Formation, Western Canada Sedimentary Basin* Noga Vaisblat 1, Nicholas B. Harris 1, Vincent Crombez 2, Tristan Euzen 3, Marta Gasparrini 2,
More informationChapter 1 INTRODUCTION
CONSTITUTIVE MODELS AND CHALK Chapter 1 INTRODUCTION Computing power has advanced significantly in the years since soil mechanics and rock mechanics first became mature fields. Probably the single most
More informationFrom 2D Seismic to Hydrodynamic Modelling
From 2D Seismic to Hydrodynamic Modelling A Complex Study of Turbidites in a Petroleum-Bearing Basin Marcell Lux, HC Exploration Geologist Ahmed Amran, HC Exploration Advisor Marianna Vincze, Geomodel
More informationFracture characterization from scattered energy: A case study
Fracture characterization from scattered energy: A case study Samantha Grandi K., Sung Yuh, Mark E. Willis, and M. Nafi Toksöz Earth Resources Laboratory, MIT. Cambridge, MA. Total Exploration & Production.
More informationGeological CO 2 Storage Feasibility Study: Saline Aquifers and Depleted Oil Fields, Ordos Basin, Shaanxi Province
U.S. - CHINA CLEAN ENERGY RESEARCH CENTER 中国清洁能源研究中心 Northwest University Geological CO 2 Storage Feasibility Study: Saline Aquifers and Depleted Oil Fields, Ordos Basin, Shaanxi Province 1 Ronald Surdam,
More informationDepositional History and Petroleum Potential of Ombilin Basin, West Sumatra - Indonesia, Based on Surface Geological Data*
Depositional History and Petroleum Potential of Ombilin Basin, West Sumatra - Indonesia, Based on Surface Geological Data* Yahdi Zaim 1, Litto Habrianta 2, Chalid I. Abdullah 1, Aswan 1, Yan Rizal 1, Nurcahyo
More informationSEISMIC PROFILE CGG SEISMIC INVERSIONS. by Lucia Levato, CGG. three offshore case studies show how one size does not fi t all. 18 seismic profile
4D SEISMIC INVERSIONS by Lucia Levato, CGG three offshore case studies show how one size does not fi t all 18 seismic profile The following three cases of offshore 4D seismic inversions illustrate how
More informationOrphan Basin, Offshore Newfoundland: New seismic data and hydrocarbon plays for a dormant Frontier Basin
Orphan Basin, Offshore Newfoundland: New seismic data and hydrocarbon plays for a dormant Frontier Basin Jerry Smee* G&G Exploration Consulting, 301 400-3rd Avenue SW, Calgary, AB, T2P 4H2 Sam Nader, Paul
More informationCO 2 storage capacity and injectivity analysis through the integrated reservoir modelling
CO 2 storage capacity and injectivity analysis through the integrated reservoir modelling Dr. Liuqi Wang Geoscience Australia CO 2 Geological Storage and Technology Training School of CAGS Beijing, P.
More information