IP Library › Granted Patent US 10,144,860
Granted Patent B1
US 10,144,860 · App. 15/788,461 · Granted Dec 4, 2018

Loss circulation compositions (LCM) having portland cement clinker

Inventor: B. Raghava Reddy (Pearland, TX)
Assignee: Saudi Arabian Oil Company
C09K8/487C04B14/22C04B14/42C04B16/0633C04B16/0658C04B28/04C09K8/08C09K8/12C09K8/32C09K8/426E21B21/003E21B33/138C09K2208/08
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Quick Facts
Patent No.
US 10,144,860
App. No.
15/788,461
Granted
Dec 4, 2018
Kind
B1
Abstract

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Claims (65)

1. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:

introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises:

Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;

a carrier fluid; and

a plurality of polymer fibers.

2. The method of claim 1 , wherein the plurality of polymer fibers comprises a plurality of polypropylene fibers.

3. The method of claim 1 , wherein the plurality of polymer fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.

4. The method of claim 1 , where the plurality of polymer fibers comprise an amount in the range of 0.25 weight of the total weight (w/w %) to 1.0 w/w %.

5. The method of claim 1 , wherein the carrier fluid comprises at least one of diutan gum, xanthan gum, and welan gum.

6. The method of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker, ASTM International Type V cement clinker, or API Class G cement clinker.

7. The method of claim 1 , wherein the LCM comprises cement.

8. The method of claim 7 , wherein the cement comprises API Class G cement.

9. The method of claim 7 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.

10. The method of claim 1 , comprising maintaining the LCM in contact with the lost circulation zone for a time period, such that the LCM forms at least one plug.

11. The method of claim 10 , wherein the time period is in the range of 24 hours to 76 hours.

12. The method of claim 1 , wherein the lost circulation zone is located in a karst formation.

13. The method of claim 1 , wherein introducing a lost circulation material (LCM) into the wellbore comprises:

mixing the LCM with water; and

pumping the mixture into the lost circulation zone.

14. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:

introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises:

Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;

a carrier fluid; and

a plurality of particulate glass having an aspect ratio of greater than 1 or less than 1.

15. The method of claim 14 , wherein the plurality of particulate glass comprises a plurality of glass fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.

16. The method of claim 14 , where the plurality of particulate glass comprises an amount in the range of 0.25 weight of the total weight (w/w %) to 2.0 w/w %.

17. The method of claim 14 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum, xanthan gum, and welan gum.

18. The method of claim 14 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker, ASTM International Type V cement clinker, API Class A cement clinker, or API Class G cement clinker.

19. The method of claim 14 , comprising cement.

20. The method of claim 19 , wherein the cement comprises API Class G cement.

21. The method of claim 19 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.

22. The method of claim 14 , comprising maintaining the LCM in contact with the lost circulation zone for a time period, such that the LCM forms at least one plug.

23. The method of claim 14 , wherein the time period is in the range of 24 hours to 76 hours.

24. The method of claim 14 , wherein the lost circulation zone is located in a karst formation.

25. The method of claim 14 , wherein introducing a lost circulation material (LCM) into the wellbore comprises:

mixing the LCM with water to form a mixture; and

pumping the mixture into the lost circulation zone.

26. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:

introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises:

Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles; and

a carrier fluid.

27. The method of claim 26 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum, xanthan gum, and welan gum.

28. The method of claim 26 , wherein the carrier fluid comprises a drilling fluid.

29. The method of claim 28 , wherein the carrier fluid comprises an aqueous drilling fluid.

30. The method of claim 26 , wherein the carrier fluid comprises a non-aqueous fluid.

31. The method of claim 26 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker, ASTM International Type V cement clinker, API Class A cement clinker, or API Class G cement clinker.

32. The method of claim 26 , wherein the weight ratio of carrier fluid to clinker is 1.1.

33. The method of claim 26 , comprising a plurality of polymer fibers.

34. The method of claim 33 , wherein the polymer fibers comprise polypropylene fibers.

35. The method of claim 26 , comprising particulate glass having an aspect ratio greater than or less than 1.

36. The method of claim 35 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes.

37. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:

introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises:

Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;

cement; and

a carrier fluid.

38. The method of claim 37 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum, xanthan gum, and welan gum.

39. The method of claim 37 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker, ASTM International Type V cement clinker, API Class A cement clinker API Class G cement clinker.

40. The method of claim 37 , wherein the cement comprises API Class G cement.

41. The method of claim 37 , wherein the weight ratio of carrier fluid to cement clinker is 1:1.

42. The method of claim 37 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.

43. The method of claim 37 , comprising a plurality of polymer fibers.

44. The method of claim 43 , wherein the polymer fibers comprise polypropylene fibers.

45. The method of claim 37 , comprising particulate glass having an aspect ratio greater than or less than 1.

46. The method of claim 45 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2017
From: ARAMCO SERVICES COMPANY
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 044260/0256 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2017
From: REDDY, B. RAGHAVA
To: ARAMCO SERVICES COMPANY
Reel/Frame 043922/0282 →
Continuity (1)
Provisional Application 62535024 · Jul 20, 2017
Cited By (2)
US 12,371,955 US 12,522,762