The Advance of New ROV Conveyed Geotechnical Acquisition Tools - Going Where No Man Has Gone Before. Subsea UK Expo February 2014

Transcription

1 The Advance of New ROV Conveyed Geotechnical Acquisition Tools - Going Where No Man Has Gone Before Subsea UK Expo February 2014

2 UTEC Geomarine Snapshot Founded Newcastle 2009 Subsea geotechnical engineering support services and robotic technology Newcastle, Bath, Singapore Geomarine Founders

3 Markets and Capabilities Oilfield A Full Range of Geotechnical Services Construction, Decommissioning Support Site Selection and Appraisal Renewable Energy Technology and Innovation Engineering, Consultancy, Procedures Survey Management Telecom Minerals Images courtesy Geomarine, Canyon

4 Subsea Geotech Design Challenges Subsea Process Structures Lateral and axial capacity Earthquake/Seismic Liquefaction Touchdown instability/ skating Skirt Penetration Critical Need for Seabed Soils Data in Top 3m

5 Subsea Geotech Design Challenges Pipelines Advanced lateral and axial response parameters Specialist Trenching Analysis Backfill, thermal and upheaval buckling Design of secondary stabilization systems Critical Need for Seabed Soils Data in Top 3m

6 Subsea Geotech Design Challenges Complex response including Depth of penetration, Weight of pipeline; Strength of seabed soil Critical Need for Seabed Soils Data in Top 3m

7 Subsea Geotech Design Challenges Trenching Critical Need for Seabed Soils Data in Top 3m Images courtesy Deepocean, Canyon, IHC EB

8 Subsea Geotech Design Challenges Confined Access Drill Mud Cuttings Survey IMR New Tie-Ins / J-tube Excavation and Dredge De-commissioning Critical Need for Seabed Soils Data in Top 3m

9 Introducing ROV s Robots in Industry Est. ~1M Industrial Robots* 60% in Automotive Production* From Space, Factory to Ocean *EU Figure Images courtesy Oceaneering

10 Introducing ROV s A Typical Day at Work ROV originally human diver mimic ISO now standardizes many ROV interfaces in subsea oilfield equipment General survey, inspection and intervention tasks Increasingly sophisticated work packages ROV Meets Diver! ROV Controls Wellhead ROV Drills a Geotechnical Borehole Images: Machin

11 ROV s, Robotics Increasing Role Recent Advances in Last 10 years Images: Machin, Fugro, Published Magazine Covers

12 Introducing georov TM georov TM ROV-conveyed seabed testing unit (IP Protected) High Precision fixed rod CPT to 5m, Sampling to 1m. Based around the proven concept of the Cone Penetration Test (CPT). Easy interface with a standard work class ROV of opportunity. Additional ROV-conveyed tools under development.

13 Introducing georov TM georov TM Developed in 2009 Innovative Thruster Device Capacity 1.5Te (each, can be combined) Handles Range of Rod Sizes Fixed Rod has Advantages Compared to Coiled Tube Systems!

14 CPT - Why Cone Penetration Test developed by the Dutch in the 1950s to investigate soil conditions Measured parameters (tip, sleeve and pore pressure) and derived parameters such as friction ratio (sleeve/tip)

15 CPT Why?

16 georov TM - The System The georov is divided into a number of individual units: 1. The CPT cone, friction reducer and rods (including flylead) 2. The drive unit (including depth encoder) 3. Subsea electronics pod 4. Hydraulics 5. Acquisition and processing software NOTE: Further detail on each of these 5 items is available within the georov TM Inteface Manual

17 georov TM - The System 1. Cone and friction reducer 2. The drive unit (incl. motor and depth encoder)

18 georov TM - The System 3. Subsea electronics pod Connection point for 12-24V power supply Connection to CPT cone Connection to depth encoder 4. Hydraulics (3 lines) Pressure line Return line Drain line All connected to the WROV

19 georov TM - The System georov TM Track Record of 22 Projects: North Sea Gulf of Mexico SE Asia Australia

20 georovtm - The System

21 georov TM - The System The system can be operational alongside a conventional work class ROV in a matter of hours Allows performance of a large quantity of CPT tests rapidly and without the requirement to return to deck Also performs T-bars and Piston Samples

22 georeact skid - REACTION georov TM working for BP/Subsea7 with georeact suction anchor skid

23 georov TM development programme Today April georov TM georeact georov-e New all-electric georove will integrate with vibrocorer as geovcpt. A compact, cost-effective and easy-to-deploy seabed geotechnical solution. Further future enhancements are planned. geovcpt georov-plus?

24 Integrated Survey Solutions Vessel of Oppotunity Geophysics - AUV Geotechnical geovcpt Simultaneous Operations Enabled Conclusions - Integrated Marine Survey Improved Quality, Reduced Durations and Costs

25 Other geotechnical research Other Geotechnical Tools eg Seabed Drilling Systems. New foundation and anchoring solutions: Remotely drilled micropiles Pipeline stabilization anchors Images courtesy Canyon, In-house

26