Deep Exploration Technologies Coiled Tubing Drilling

Transcription

1 Deep Exploration Technologies Coiled Tubing Drilling Program 1 Leader: Soren Soe Drilling DEEPCORE DRILLING PLUS WORKSHOP

2

3

4 IP and Role of Service Providers c er m IP Utilization m Co ise ial R&D Providers Drilling equipment manufacturers & service providers offer a natural route to commercialisation Mining Companies Re se ar ch Mining companies and geological surveys are the end users DET CRC IP Creation IP Licencing Research & Technology Transfer Drilling Equipment Manufacturers/ Technology Service Providers

5 Scoping Project Outputs VISION Questionnaire + Workshop: Geologists Drillers Researchers MISSION

6 Lab-at-RigTM Lab-at-RigTM CT Drilling Downhole Sensing MINERAL SYSTEMS DRILLING Autonomous Sonde Coiled Tubing Drill Rig

7 Project Coiled Tubing Drill rig - Vision To develop and adapt transformational drilling technologies. Mission Coiled tubing rig for greenfields mineral exploration drilling at a cost of $50/metre to a depth of 500 metres and weighing less than 10 tonnes with ancillary safety and environmental benefits Tough but doable

8 Program 1 in Context with Program 2 and 3

9 Coiled Tubing Drilling for Minex 2-3 hours move in and rig up time Penetration rates: up to100m/hr in soft, predictable sedimentary rocks. CTD offers improved cost, safety, and environmental impact in mineral exploration Key challenges for mineral exploration include: Hard rock drilling with a Low weight-on-bit Coil durability Efficient Micro in-hole tooling Micro borehole sensing and sampling

10 Coiled Tubing Drilling in MINEX

11 DET CRC Drilling Research

12 Project 1.1: Key Outcomes Cutting the rock - high RPM First Drilling with Turbine at Brukunga New Full-face Bit design New Bit matrix with Improved wear resistance 8000 RPM Turbine drilling Close cooperation with Turbine manufacture(s) for next generation Turbine and a new Turbine is on the market Chasing consisting ROP of +500 mm/min in Granite rock in the LAB

13 Project 1.1: Key Outcomes Cutting the Rock with Percussive water hammer: New Bit design(s) with Improved wear resistance Chasing consistent ROP mm/min in the field New Bit 150 meters drilled. Gauge worn 0.16 mm Old Bit 35 meters drilled. Gauge worn out DET CRC - Vanadium Hammer barrel reduced deviation to a 1/3

14 Project 1.1: Key Outcomes Coiled Tubing Drill Rig Coiled Tubing Rig: CT rig Version 1 Steel Coil The Coiled Tubing rig mounted with steel Coil drilled to a depth of 150 metres with water hammer in 8 hours. (325mm/min average) The Coiled Tubing rig mounted with Flexible H-Coil drilled to a maximum depth of 145 metres with water hammer in several intervals. Percussive drill cuttings circulated to the SRU CT rig Version 2 Flexible Coil

15 Coiled Tubing Our First Prototypes of Composite Coiled Tubing has been manufactured Drilling with Composite Coiled Tubing commenced

16 Project 1.1: Key Outcomes Flexible Coiled Tubing - H-Coil Benchmarking & Validation November 2014 February 2015 March 2015 March - April 2015 December 2014 May 2015

17 Future Coiled Tubing Rig Steel Rig H-Coil Retro Fit May 2016 delivery timeframe H-Coil Rig

18 Down-Hole Force-Torque Sub The DET CRC down-hole force-torque sub measure weight-on-bit, torque and internal fluid pressure. Additional sensors could be integrated into future iterations of the tool. The sub communicates with an interface unit on the surface over an armoured cable within the tubing of the Coiled Tubing Drill Rig. Slimmest down-hole force-torque sub in the world.

19 Hole stability, Water cleaning & Cuttings transport Full-scale trials at Brukunga collecting cuttings. CFD models Tuned to match flow loop observations

20 Project 1.1: Key Outcomes Sample returns/ drilling fluids/hole stability Percussive CTdrilled hole. Wet section Percussive CTdrilled hole. Dry section. 360 Photo Printed Core Percussive CTdrilled hole wet section Clay wash out

21 Hole stability, Water cleaning & Cuttings transport Standard SRU s will under most conditions remove 90% of cuttings in the drilling fluids. We are currently achieving 99.9% cuttings removal.

22 Lab-at-RigTM Geochemistry and Mineralogy

23 days to weeks Geological Logging Geotech Logging weeks days Drill hole days weeks Core yard petrophysics Current workflow Wireline Logging Sample Prep months Assay Split Core Comminution days weeks months Disparate data streams

24 1 day Same day DET CRC workflow S/Ti from pxrf of drilling powders large scale features medium scale features Real time Wavelet transform small scale features Real time Productivity!! Where to drill next? Same day Down hole S/Ti value Sulphide veinlets Increasing scale Broad sulphide zones All Underpinned by knowledge of the host rocks and mineral system!

25 Source: Advertiser Newspaper, 9 December 2014

26 Mineral Systems Drilling Program Geological Survey of SA: mid 2015 following 2014 s GA/GSV Victorian drilling key step in planning design manufacture lab testing Brukunga DRTF testing field testing technology ~16 holes/~7 km to map mineral system under cover principally Wireless Sub, Lab-at-RigTM (incl. LAR Fluids), AutoSondeTM (possibly AutoShuttle), VSPs & Real-Time Drill Site

27 Mineral Systems Drilling with Geological Survey of SA: mid 2015 Mt Cu-eq 152 South Australia 4 ~16 holes/7 km to map mineral system under cover applying DET CRC s new technologies

28 Thank you