1. SLOPE SYSTEM - Preplanning a future Re-Entry
© Baker Hughes Incorporated. All Rights Reserved.

2. What is the SLOPE System?
Selective Lateral Orientation Profile for Exits
A method of providing a pre-determined permanent datum point, integral to the casing or liner string, for positive depth location and orientation for creating casing exits and future lateral re-entries 2
Completion Flexibility
Complexity
© Baker Hughes Incorporated. All Rights Reserved.

3. Why use a SLOPE system approach?
Cost effective solution
Simple installation on casing or liner string
Standard cementing procedures observed
No need for orientation of the casing string unlike a pre-milled window system
Positive re-entry to each lateral
Use at anytime in the life of the well
Full burst and collapse rating of the casing
Full bore access through entire casing string
Allows normal drilling Completions & Remedial
© Baker Hughes Incorporated. All Rights Reserved.

4. When is SLOPE used? Need a casing exit for an ML junction
Most common application as a Level 2
Need multiple laterals from one common wellbore
Minimize trips for creating casing exits
Permanent alignment datum point required (Drilling, Completions, Remedial, etc.)
Vertical exploration prior to drilling horizontal
When intervention will be required either by coil or joint tubular
When step out exploration will occur at a later date
© Baker Hughes Incorporated. All Rights Reserved.

5. The SLOPE System Installed in casing string at pre-determined points
Burst and collapse ratings equivalent to casing size and weight
Profile matches locating tool collet
Existing Sizes:
5.5” # and 20-23#
7” 23-26# and 29-32#
9 ⅝ - Pending Q new features
Example
© Baker Hughes Incorporated. All Rights Reserved.

6. The SLOPE System
The SLOPE Nipple is an integral component of the casing string.
A landing collar is installed below the SLOPE nipple.
A pump through Straddle Wiper Plug is preinstalled in each SLOPE Nipple to isolate the locating/orienting profiles during cementing operations.
© Baker Hughes Incorporated. All Rights Reserved.

7. SLOPE Selective Collet System
Position Order #4 #3 #2 #1
Multiple SLOPE Nipples can be installed in the casing string for immediate or future usage.
The selective collet design assures positive depth location.
© Baker Hughes Incorporated. All Rights Reserved.

8. SLOPE Selective Collet System - Operation
The casing string does not require orientation prior to cementing.
Conventional cementing procedures are used.
A SLOPE Casing Wiper Plug is launched from a standard casing cementing manifold, following the cement.
The SLOPE Casing Wiper Plug latches into and shears the Slope Straddle Plug.
The Stacked SLOPE Casing Wiper Plug latches the next Slope Straddle Plug and shears the plug to continue down hole.
The SLOPE plug system latches into a landing collar.
© Baker Hughes Incorporated. All Rights Reserved.

9. Locators Drilling Locator
Positive depth control of whipstock assemblies
Assures correct alignment of whipstock assembly
Modular design to minimize equipment requirements
Completion Locator
Tubing connections on top and bottom
Compatible with permanent or retrievable completions
Retrievable for full bore workovers
Positive alignment of selective completion assemblies
Half mule shoe
© Baker Hughes Incorporated. All Rights Reserved.

10. Locators - Orientation
The corresponding position locator sub is landed in the SLOPE Nipple to measure the exact depth.
While landed, rotation of the work string aligns the locator’s orientation key in the SLOPE Nipple.
Azimuth is measured by either the MWD or gyro method.
The SLOPE Nipple now provides a permanent datum point in the well bore.
The orientation BHA is retrieved.
© Baker Hughes Incorporated. All Rights Reserved.

11. Debris Management System
Excluder Sub
Unloader Sub
Shear Sub
Excluder Sub
TorqueMaster Anchor
© Baker Hughes Incorporated. All Rights Reserved.

12. Debris Management System - Components
Excluder Sub
Excluder cup is manufactured a high quality Nitrile Polymer that is permanently bonded to a steel support
Excluder cup has radial slits so that fluid can pass through the cup during run in of the BHA
Unloader Sub
Unloader bypass prevents swabbing of the well with the excluder rubber while pulling out of the hole
Unloads Pressure from Either Direction The Unloading Sub unloads pressure differential either from the annulus to the tubing or from the tubing to the annulus.
Stroke of tool provides indication whipstock is free should the anchoring system fail to release
Shear Sub
Allows retrieval of whipstock, should the primary release method fail, ensuring whipstock recovery even in “worst case scenario”
The joint is rotational locked to withstand high torque loads
Adjustable shear value allows same tool to be dressed for different well conditions
Standard fishing neck is left looking upward once sheared
© Baker Hughes Incorporated. All Rights Reserved.

13. Debris Management System - Operation
Prior to running the whipstock BHA in the hole. The Spline Sub is adjusted to align the whipstock face per SLOPE Nipple orientation reading.
The whipstock BHA is run and landed in the SLOPE Nipple.
Once landed, right-hand rotation of the work string latches the locator sub orientation key in the SLOPE Nipple aligning the whipstock face to the correct azimuth.
© Baker Hughes Incorporated. All Rights Reserved.

14. SLOPE and ML WindowMaster
Whipstock run with debris management system
Whipstock aligned to desired azimuth
Drilling locator collets latch in selected nipple
Assembly is rotated to latch alignment key in slot
Window is cut and lateral drilled
© Baker Hughes Incorporated. All Rights Reserved.

15. SLOPE with Selective Completion
Lateral Entry Nipple (LEN) is aligned to match casing window
LEN provides positive lateral and main bore access and isolation when installed in conjunction with straddle packers
© Baker Hughes Incorporated. All Rights Reserved.

16. TAML Level 2 Junction - Completion
Standard Packer Commingled Production
Thru tubing re-entry into upper lateral will require use of a Hydraulic Bent Joint Tool
Selective Production
Thru tubing re-entry into lower lateral only
IWS Completion
Selective Production with Lateral Access
LEN provides selective production & thru tubing access to both laterals.
Note:
Use of a Locating Profile increase the completion and re-entry options
© Baker Hughes Incorporated. All Rights Reserved.

17. Case History 1: Level 2 - On Shore - Alberta
Project Summary
Project Date: December 2003
Well location: On Shore Alberta
Well type: New well
Formation: Consolidated
Junction type: Level 2 SLOPE
Junction: 9,135 ft (2,785 25°
Drilling fluid: Under balanced
Main bore casing: 7-5/8 and 7”
Laterals: 6” and 4-3/4” Open hole
BHI Products and Services
BOT WindowMaster Whipstock system
SLOPE
Project Results
Creation of a dual lateral SLOPE Level 2 Junction. Depth of +/ ft (2,785 m) at 25° while drilling in an under balanced environment. The SLOPE system and procedures were 100% successful. A field proven solutions working under balance.
© Baker Hughes Incorporated. All Rights Reserved.

18. Case History 1: Level 2 - On Shore - Alberta
Completion Description
Main bore was set with the drilling rig
The WindowMaster Whipstock was run and landed in the SLOPE
The window was cut and a rat hole reamed creating the casing exit
Intermediate hole was drilled and a plop and dropped liner was cemented into place
The whipstock was retrieved and the drilling rig was moved off the location
A Coil tubing rig onto location with under balance drilling equipment
A 6” open hole was drilled to TD
Well was tested
Whipstock was landed back into the SLOPE where the existing casing exit was already present
4-3/4 open hole was drilled out of the plopped and dropped liner
Whipstock was retrieved
Final completion was run
© Baker Hughes Incorporated. All Rights Reserved.

19. Case History 2: Level 2 – On Shore - Canada
Project Summary
Project Date: July 2005
Well location: On Shore Canada
Well type: New well
Formation: Shale and limestone
Junction type: Level 2 SLOPE
Junction: 5,660 ft (1,725 0°
Main bore casing: 7” 23#
Laterals: 6” Open hole
BHI Products and Services
SLOPE
Completion Equipment
Project Results
100% successful installation of the Baker SLOPE system
© Baker Hughes Incorporated. All Rights Reserved.

20. Case History 2: Level 2 – On Shore - Canada
Project Overview
Vertical wells in this area have traditionally been strong candidates for reentries. The lowest zone produces vigorously for one/three years. As the reservoirs’ pressure drops the upper horizontal zones can be drilled and added to the production. There are three additional zones of interest. A decision will be made later (one to three years) whether one or more of the upper reservoirs will be added.
The operator selected the Baker SLOPE system as the only economical solution. The SLOPE was included in the final casing string for future sidetracks. It provided a base to create one or more level two junctions. The greatest advantage to the SLOPE system is there is no ID restriction that limits your options. There are no safety issues with compromising the casing integrity with pre-milled windows. The SLOPE has the same burst and collapse ratings of the casing that it is installed in . The mainbore casing was cemented into place and the lowest zone was perforated. The Baker Hornet Packer was run through the SLOPE nipple and set with 2-7/8” tubing was tied into the surface. The well was ready for production.
The Baker SLOPE will provide the base for future development of the well. This marks the first time a company has had the forethought to install multilateral equipment that will be utilized years down the road. It reduces the cost and increases the flexibility of the well and creates a more effective design.
© Baker Hughes Incorporated. All Rights Reserved.

21. Case History 2: Level 2 – On Shore - Canada
Completion Description
Main bore was drilled and a 7” 23 lb casing was installed
Included in the casing string was a Baker SLOPE profile #1
The retrievable back passed through the Baker SLOPE nipple to be set just above the perforations
© Baker Hughes Incorporated. All Rights Reserved.

22. Case History 3: Level 2 – On Shore - Kazakhstan
Project Summary
Project Date: August 2005
Well location: On Shore Kazakhstan
Well type: New well
Formation: Consolidated
Junction type: Level 2 SLOPE
Junction #2: 17,095 ft (5,211 81°
Junction #1: 17,510 ft (5,337 82°
6” Lateral legs: Approx 1,970 ft (600 90°
Main bore casing: 9-5/8” and 53.50
Lateral casing size: 7” 32#
BHI Products and Services
BOT WindowMaster Whipstock system
BOT Completion
SLOPE
Atlas
INTEQ Directional Drilling
Baker Hughes Fluids
Project Results
Creation of a tri-lateral SLOPE level meters (17,510 ft) 100% successful. Implementation of a Baker Hughes Solution. A field proven solution to replace level one junctions as well as a strong foundation for level 2 junctions.
© Baker Hughes Incorporated. All Rights Reserved.

23. Case History 3: Level 2 – On Shore - Kazakhstan
Project Overview
The operator was looking for incremental production increases from a singular reservoir located at meters (17,500 ft). The options available were: drill three separate wells, or a multilateral solution. The economics quickly showed that a multilateral solution was the best answer.
The operator decided that the Baker SLOPE system was the best system for their wells. The SLOPE system is a low risk highly versatile multilateral system. The SLOPE nipple becomes an integral part of the A 7” liner. The inclusion of 2 Baker SLOPE nipples in the liner installation provides the foundation for a Tri-lateral level 2 wellbore. The Baker SLOPE nipple permits all normal practices to be utilized when running and cementing the liner into place. These 2 SLOPE nipples are now a permanent reference point in the wellbore. This permits all operations to occur with out an ID restriction. Each leg was drilled horizontally for approximately 600 meters resulting in crows’ foot profile in the reservoir. The SLOPE nipples and the casing exits were accomplished at +80° of inclination. By commingling all three legs, the completion is simplified. At any time, the SLOPE nipples can be reused to reenter the designated legs, or act as a base for additional laterals to be installed.
The versatility, track record and ease of installation of the Baker SLOPE system leaves no doubt that it is the solution for level 2 junctions at any depth.
© Baker Hughes Incorporated. All Rights Reserved.