1. Profile Liner Technology for isolation of complicated zones while drilling

2. Our factory PERECRYVATEL LLC

3. Profile Liner Technology  Vertical wells  Deviated wells  Horizontal wells  For isolation of complicated zones with total loss while drilling  For isolation of productive layers from blocking it by drilling mud and cement  For casing repairing while drilling Applicable: Application area:

4. Technology for well design simplification Profile liner set in series when meet the loss zones Isolate the layers without diameter loss Make the well design more simple Standard With PL application

5. 12 34 56 Profile liner’s pipe Profile Liner Technology Hole condition with loss Reaming the hole PL running PL expanding by internal pressure Expanding of cylindrical parts

6. Type & technical parameters of expandable profile liner D – PL diameter in cylinnrical parts; D1 – PL diameter in profiled parts; s – thickness; d – Hole diameter; d1 – ID of PL after PL setting ; d2 – Bit diameter after PL setting; Р – Pressure for PL setting; Р1 – Max. allowable inside pressure for PL ; Profile Liner type Profile liner size, inWell diameter, inPressure differential, psi DD1D1 sdd1d1 d2d2 PP1P1 PL-295 10,74810.630,31511,626 * 11,81111,62611601943 PL-216 7,8747,6770,3158,5 ** 8,5048,518122610 PL-216U 7,8747,6770,3158,57,7167,519352842 PL-168K5,3545,2760,197 65,551 5,520302465 5,665 *** 5,591 PL-146K4,6464,5670,197 5,197 4,8034,74823203190 4,882 **** PL-146U 5.1975.1180,1975,7095,197-23202465 PL-168K 5,3545,2760,1975,9455,591-20302465 PL-146K 4,6464,5670,1975,1974,803-23203190

7. Shape of Profile Liners Initial shape of pipe

8. Connection for welding Threaded connections Connection of Profile Liner

9. Packer elements on PL PL for 12-1/4” hole PL for 8-1/2” hole

10. Easy drillable polymer shoe (on the left) running tool with left thread (on the right)

11. Testing stand at the factory

12. Profile pipe before and after expanding After expanding 1 m of profiled pipe can withstand to 150 Klbs (70 t) of axial load

13. The well should be reamed by underreamer before PL running Underreamers

14. Roller Reamers Applicable for reaming of cylindrical part of PL and for calibration of inside parts of PL after PL setting in a well

15. Roller Reamers

16. Isolation by stage Connection of PL from the top. Well No.14124 Abdrahmanovskoe Field, Tatarstan, Russia Connection of PL to PL from the bottom. Well No.202 Orenburgskoe Field, Russia

17. Well No. 35 in Samara region it was set 7 Profile Liners without loss in diameter

18. Application of profile liner technology in Kupal Field, IRAN in 2003 1.Threaded connections – 15 2.Welded connections – 45 3.Total length of PL – 435,5 m. 4.PL was set when the bottom was at 3790m 5. TD after PL setting – 4135 m

19. ISOLATION OF PRODUCTIVE LAYERS BY PROFILE LINERS

20. PROFILE LINER MANUFACTURING AT UNIQUE STAND

21. Profile Liner before shipment

22. 20 1. Time reduce for well drilling 2. Cost reduce for casing using 3. Cost reduce for drilling mud services 4. Cost reduce for transportation 5. Additional oil production due to the period of well drilling reduced 1. Solve the problem with total loss while drilling 2. Time reduce for well drilling 3. Isolate the layers without loss in diameter 4. Applicable without cementing 5. Intermediate casing excluded 6. Simplification of well design 7. Profile liner set in series when meet the loss zones 8. Reduced energy and materials TECHNOLOGICAL EFFICIENCY ECONOMIC EFFICIENCY

23. Office 43, bld. 40/1, Kuibysheva str, Octyabrskiy city,, 452614, Rep.Bashkortostan, Russian Federation ph./fax: +7 (34767) 4-17-25, +7-909-310-11-13 e-mail: inburdi@mail.ru www.diddt.com Thanks for your attention!