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

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

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. 9500
9000
8500
Frac Gradient
8000
7500
7000
Pore Pressure
6500
Bore Hole Collapse
6000
5500

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
Bottom Hole Circulating Pressure (BHCP) vs. Liquid Injection Rates. Actual Case History Showing BHCP Control with Minimal Pressure Oscillations
4750
4625
3625
3500
3375
3250 Vs
Inj

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
Test Port
VR Threads
Surface Casing
Intermediate Casing

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

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

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

21. Click for each Operation
Drilling Operation
1. Drill Surface Hole
2. Set Surface Casing
Protective and Tieback casing designed for production
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
Ports
8. Rig up RBOP, Programmable Choke, Surface Equipment, and test.
DHDV
9. Drill to Zone of Interest
10. Run Carrier String with DHDV with or without Upstock
Not necessary to drill out from the liner or the carrier string to go underbalanced.
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.
DHDV
Carrier String

22. Robert Gardes phone # 337/