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MANAGED PRESSURE DRILLING PRESENTATION ______________________________________________________________________ A Continuous Circulating Concentric Casing.

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Presentation on theme: "MANAGED PRESSURE DRILLING PRESENTATION ______________________________________________________________________ A Continuous Circulating Concentric Casing."— Presentation transcript:

1 MANAGED PRESSURE DRILLING PRESENTATION ______________________________________________________________________ A Continuous Circulating Concentric Casing System for Friction Controlled Drilling

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3 The Gardes Energy Services MPD System Provides: The down hole control of critical high-pressure, high-temperature wells while drilling using a combination of both standpipe and concentric annulus fluid injection to create frictional pressures on the return annulus and establish a desired equivalent circulating density (ECD) at depth to drill near balance, at balance or under balance in the formation. During connections, the established standpipe injection volume used while drilling is added to the normal annulus injection volume on the back side, so the ECD remains constant, thus eliminating the bottom hole pressure surges associated with connections and minimizing connection gas influx. This system overcomes the problems associated with shallow geotechnical hazards, well bore instability, lost circulation and narrow margins between formation pore pressure and fracture gradient.

4 High Temp., High Pressure MPD System with the patented dual fluid friction circulation. Increased Concentric Casing circulating rate creates instantaneous control of reservoir inflow without the need for surface pressures or modification of drilling fluid densities.

5 Managed pressure drilling can overcome a variety of problems including shallow geotechnical hazards, well bore instability, lost circulation, and narrow margins between formation pore pressure and fracture gradient.

6 ECD management by planning and monitoring a Managed Pressure window. Narrow ECD window between pore pressure and bore hole collapse that can be maintained with Managed Pressure Drilling and the Gardes Continuous Circulation dual string technology

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8 ADVANTAGES OF GARDES ENERGY SERVICES MPD CONCENTRIC CASING CONTINOUS CIRCULATION SYSTEM Expands operating window between ECD and Frac Gradient. Reduces excessive cost of circulating out connection gas. Creates near constant and controllable ECD pressures. Added well control during trips. Continuous circulation during connections. Can be run with all down hole deployment casing valves. Contains all working pressures below rotary table not on rig floor. System has an attached whip stock (up stock) for multi lateral deviation or re entry. System can be run in open or cased holes System can be stripped out of hole to keep UB environment at TD. System can be run in straight, deviated or horizontal configured well bores. System is designed for all MPD situations, Under balanced or tight ECD environments.

9 The purpose of MPD is to both ascertain the down hole pressure environment limits and manage the annular hydraulic pressure profile to fit within that window.

10 Bore Hole Collapse Pore Pressure Frac Gradient

11 The Gardes Energy Services MPD System Includes Neo Tech 7 Flow Modeling: Through Pre planned flow modeling, Down Hole Pressure while drilling tools (PWD) and Real Time on location Flow Modeling we are able to manage the Annular Hydraulic pressure profile to fit within any window.

12 Bottom Hole Circulating Pressure (BHCP) vs. Liquid Injection Rates. Actual Case History Showing BHCP Control with Minimal Pressure Oscillations Vs Inj

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15 The Gardes Energy Services MPD 4 Phase Surface System Real Time: _______________________________________________

16 MPD may be accomplished by many means including combinations of backpressure, variable fluid density, fluid rheology, circulating friction, and hole geometry

17 Wellhead for Continuous Circulation BOP Secondary Seal Surface Casing Intermediate Casing Test Port VR Threads

18 Wellhead for Continuous Circulation BOP Running Tool with Acme Thread Carrier String Hanger Micro-Annulus Production Casing Run in Lockscrews Carrier String Test to Working Pressure Surface Casing Intermediate Casing

19 Wellhead for Continuous Circulation Drill Pipe Injection Down Drill Pipe Injection Into Micro Annulus Fluid Returns Co-mingle

20 Wellhead for Continuous Circulation Drill Pipe Injection Down Drill Pipe Injection Into Micro Annulus Fluid Returns Co-mingle

21 1. Drill Surface Hole 2. Set Surface Casing 3. Drill Protective Hole 4. Set Protective Casing 5. Drill Liner Hole 6. Set liner 7. Run Tieback with Down Hole Deployment Valve with Ports above the DHDV 9. Drill to Zone of Interest 10. Run Carrier String with DHDV with or without Upstock 11. Drill out 12. Run Drill String with BHP Tools and Float Subs 13. Go underbalance with mud weight light enough to be 600 to 800 psi below BHP but with annular friction to maintain surface pressure less than 2,000 psi. Inject down the backside and inside of the tieback string taking returns inside of the carrier string. 8. Rig up RBOP, Programmable Choke, Surface Equipment, and test. DHDV Carrier String Ports Click for each Operation Drilling Operation Protective and Tieback casing designed for production Not necessary to drill out from the liner or the carrier string to go underbalanced.

22 Robert Gardes phone # 337/


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