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- Nachgewiesen in: USPTO Patent Grants
- Sprachen: English
- Patent Number: 11613,943
- Publication Date: March 28, 2023
- Appl. No: 17/212730
- Application Filed: March 25, 2021
- Assignees: Saudi Arabian Oil Company (Dhahran, SA)
- Claim: 1. A lost circulation material (LCM) composition, the composition comprising: a plurality of flakes produced from vehicle tires, wherein each of the plurality of flakes has a long axis of 7 millimeter (mm) to 10 mm, a short axis of 5 mm to 7 mm, and a thickness of 3 mm to 4 mm, wherein the LCM has a concentration of 10 pounds-per-barrel (ppb) to 50 ppb in a drilling fluid.
- Claim: 2. The LCM composition of claim 1 , wherein the LCM consists of the plurality of flakes produced from vehicle tires.
- Claim: 3. The LCM composition of claim 1 , wherein the plurality of flakes produced from vehicle tires comprises a plurality of untreated flakes.
- Claim: 4. The LCM composition of claim 1 , wherein the plurality of flakes are produced by: shredding the vehicle tires into a plurality of pieces, the shredding including removing steel from the vehicle tires; cutting each of the plurality of pieces into a plurality of strips; and cutting each of the plurality of strips into a plurality of flakes.
- Claim: 5. A method to prevent lost circulation of a drilling fluid in a wellbore, comprising: introducing an altered drilling fluid into the wellbore such that the altered drilling fluid contacts a lost circulation zone and reduces a rate of lost circulation into the lost circulation zone, wherein the altered drilling fluid comprises a drilling fluid and a lost circulation material (LCM), wherein the LCM comprises a plurality of flakes produced from a vehicle tire wherein each of the plurality of flakes has a long axis of 7 millimeter (mm) to 10 mm, a short axis of 5 mm to 7 mm, and a thickness of 3 mm to 4 mm, wherein the LCM has a concentration of 10 pounds-per-barrel (ppb) to 50 ppb in the altered drilling fluid.
- Claim: 6. The method of claim 5 , wherein the altered drilling fluid consists of the drilling fluid and the LCM.
- Claim: 7. The method of claim 5 , wherein the LCM consists of the plurality of flakes produced from the vehicle tire.
- Claim: 8. The method of claim 5 , wherein the plurality of flakes produced from the vehicle tire comprises a plurality of untreated flakes.
- Claim: 9. The method of claim 5 , wherein the plurality of flakes have a coefficient of resiliency of 0.49 to 0.53.
- Claim: 10. The method of claim 5 , wherein the flakes are produced by: shredding the vehicle tire into a plurality of pieces, the shredding including removing steel from the vehicle tire; cutting each of the plurality of pieces into a plurality of strips; and cutting each of the plurality of strips into a plurality of flakes.
- Claim: 11. An altered drilling fluid, comprising: a drilling fluid; and a lost circulation material (LCM), wherein the LCM comprises a plurality of flakes produced from a vehicle tire, wherein each of the plurality of flakes has a long axis of 7 millimeter (mm) to 10 mm, a short axis of 5 mm to 7 mm, and a thickness of 3 mm to 4 mm, wherein the LCM has a concentration of 10 pounds-per-barrel (ppb) to 50 ppb in the altered drilling fluid.
- Claim: 12. The altered drilling fluid of claim 11 , wherein the LCM consists of the plurality of flakes produced from the vehicle tire.
- Claim: 13. The altered drilling fluid of claim 11 , wherein the plurality of flakes produced from the vehicle tire comprises a plurality of untreated flakes.
- Claim: 14. The altered drilling fluid of claim 11 , wherein the plurality of flakes have a coefficient of resiliency of 0.49 to 0.53.
- Claim: 15. The altered drilling fluid of claim 11 , wherein the plurality of flakes are produced by: shredding the vehicle tire into a plurality of pieces, the shredding including removing steel from the vehicle tire; cutting each of the plurality of pieces into a plurality of strips; and cutting each of the plurality of strips into a plurality of flakes.
- Claim: 16. A method of manufacturing a lost circulation material (LCM), comprising: obtaining a vehicle tire; shredding the vehicle tire into a plurality of pieces, the shredding including removing steel from the vehicle tire, each of the plurality of pieces having a size of 50 mm to 75 mm; cutting each of the plurality of pieces into a plurality of strips, each of the plurality of strips having a thickness off 3 mm to 4 mm and a width of 5 mm to 7 mm; and cutting each of the plurality of strips into a plurality of flakes, each of the plurality of flakes having a long axis of 7 millimeter (mm) to 10 mm and a short axis of 5 mm to 7 mm, wherein the LCM has a concentration of 10 pounds-per-barrel (ppb) to 50 ppb in a drilling fluid..
- Claim: 17. The method of claim 16 , comprising cleaning the vehicle tire using an air jet before shredding the vehicle tire.
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- Other References: Almagro, Santiago Pablo Baggini et al.; “Sealing Fractures: Advances in Lost Circulation Control Treatments” Oilfield Review, Autumn 2014; pp. 4-13. cited by applicant ; Savari, Sharath et al.; “Resilient Lost Circulation Material (LCM): A Significant Factor in Effective Wellbore Strengthening” SPE 153154, SPE Deepwater Drilling and Completions Conference, Galveston, Texas, Jun. 20-21, 2012; pp. 1-7. cited by applicant ; Wang, Gui et al.; “Experimental investigation on plugging behavior of granular lost circulation materials in fractured thief zone” Particulate Science and Technology an International Journal (2015); pp. 1-6. cited by applicant
- Primary Examiner: Loikith, Catherine
- Attorney, Agent or Firm: Bracewell LLP ; Rhebergen, Constance G. ; Tompkins, Brian H.
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