Invention Grant
- Patent Title: Shape-adaptable lost circulation material for moderate and severe loss control
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Application No.: US17088799Application Date: 2020-11-04
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Publication No.: US11505732B2Publication Date: 2022-11-22
- Inventor: Md Amanullah , Timothy Eric Moellendick
- Applicant: SAUDI ARABIAN OIL COMPANY
- Applicant Address: SA Dhahran
- Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee Address: SA Dhahran
- Agency: Osha Bergman Watanabe & Burton LLP
- Main IPC: C09K8/516
- IPC: C09K8/516 ; C09K8/035 ; E21B21/00 ; C09K8/512

Abstract:
Modified Drilling fluid compositions, lost circulation material compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a lost circulation shape-adaptable material. The loss lost circulation shape-adaptable material may include a plurality of oval shaped composite particles, wherein the plurality of oval shaped composite particles comprise a first component, a second component, and a high temperature, high pressure (HTHP) binding adhesive. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.
Public/Granted literature
- US20220135863A1 SHAPE-ADAPTABLE LOST CIRCULATION MATERIAL FOR MODERATE AND SEVERE LOSS CONTROL Public/Granted day:2022-05-05
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