Caracterização de. Michelle Uchôa Chaves Geóloga SIS Brasil

Transcription

1 Caracterização de Reservatórios Michelle Uchôa Chaves Geóloga SIS Brasil

2 Introduction into SIS Schlumberger Information Solutions (SIS), an operating unit of Schlumberger, is organized in three business segments: Software Technologies Information Management Digital Infrastructure These integrated segments are designed to provide a set of complete solutions and capabilities that support oil and gas industry core operational processes.

3 SIS Strengths Software Workflows to integrate core operational processes Technology Largest investment in innovation though research, development, partnerships, alliances & acquisitions Ινφορµατιον Information Μαναγεµεντ Management Οπτιµιζινγ Optimizing δατα data & ινφορµατιον & & information φλοωσ flows αχροσσ across χορε core οπερατιοναλ operational προχεσσεσ processes Solutions Market solutions focused on digital enablement of core operational processes Infrastructure Securely connecting Σεχυρελψ Securely core χοννεχτινγ connecting operational χορε core processes οπερατιοναλ operational προχεσσεσ processes Ινφραστρυχτυρε Infrastructure People Established domain, process and IT knowledge combined with global footprint

4 Petrel History and Vision 1996 Software and consultancy founded December 1998 First commercial release December 2002 Part of Schlumberger Information Solutions Goal is to get Petrel on every Geoscientists desktop User friendly interface, easy to learn and makes life easier Complete workflow tool covering Seismic to Simulation

5 Reservoir characterization Reservoir Engineering Reservoir Engineering Defines how the fluids move in the container and predicts recovery Geoscience Defines the size of the container and contents (rocks and fluids)

6 Questions the Engineer Asks How much hydrocarbon is there? What is the lateral extent of the geological bodies? How connected are the geological bodies? How heterogeneous are the rocks? Where is the hydrocarbon in the formation? How difficult is it to recover? How should we recover? How fast can we recover? How uncertain are reserves estimates? Can we make them more certain? Uncertainty Analysis Reservoir Simulation Simulation Pre-processing G&G Interpretation Geologic Modeling Depth conversion Geologic Modeling Facies & Petrophysical

7 Petrel workflow Intro Seismic Well Correlation Fault Modeling Pillar Gridding Zonation and Layering Intro to Petrel Import data Edit Input Data Facies Modeling Petrophysical Modeling Plotting Volume Calculation Uncertainty Analysis Workflow Editor

8 Seismic interpretation Fault and horizon interpretation Horizon probes Geobody Seismic volume attributes Seismic visualization (filter) Geobody

9 Well correlation Petrel includes a tool for making rapid on-screen correlation, with the possibility to bring up multiple wells in a well section, make marker-picks (well tops), re-datum and then bring up new wells to compare with already correlated wells.

10 Structural Modeling Pillar gridding Based on the Key Pillars in the Fault Model, the desired I/J increments and other parameters, pillars will be inserted in the 3D model, representing the nodes in the grid. Fault modeling Pillar Gridding Make Horizons Make Zones Layering

11 Structural Modeling Horizons, Zones and Layers Main Reservoir layers from seismic interpretation Vertical Thickness Zonations isochores from geological interpretation Stratigraphic Thickness Along Pillar Proportional Final Vertical Resolution defined by cell thickness or number of cell layers Follow Base Follow Top Fractions Follow Base with Reference

12 Facies Modeling Stochastic method Deterministic method Pixel based technique Object based technique Direct addressing technique Sequential Indicator Simulation algorithm Object modeling algorithm Interactive modeling drawing Distributes the property, using the histogram. Directional settings, such as variogram and trends, are also honored. Allows to populate a discrete facies model with different bodies of various geometries, facies, rules and fractions. Allows the user to paint facies directly on the 3D model.

13 Petrophysical Modeling Stochastic method Pixel based technique Deterministic method Interpolation Sequential Gaussian Simulation algorithm Gaussian Random Function Simulation algorithm Moving average Honors well data, input distributions, variograms and trends. The variogram and distribution are used to create local variations, even away from input data. It is faster than SGS, and gives better variogram reproduction. It also has a fast collocated cosimulation option using interactive correlation-coefficient as slide bar. Based on the input it gives an average value and calculates the weigths according to the distance from wells.

14 Volumetric Calculation and Uncertainty Analysis Volume Calculation Uncertainty Analysis 14

15 Run simulations In Petrel you can choose between two simulators: Eclipse: Well established, can handle a wide variety of problems. Frontsim: Fast. Good at huge models.

16 Schlumberger online Schlumberger external hub page: Schlumberger careers SIS internal hub page: SIS external hub page: Software Products hub page Information Management hub page Digital Infrastructure Hub page B0E02CFE3F592BEB1D50?id=id