Invention Grant
- Patent Title: Cement top job with non-retrievable tubing
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Application No.: US17643196Application Date: 2021-12-08
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Publication No.: US11859465B2Publication Date: 2024-01-02
- Inventor: Abdulwahab S. Al-Johar , Abdullah Saleh Al-Yami , Abdulla F. Dossary , Sara A. Alkhalaf
- 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: E21B33/14
- IPC: E21B33/14 ; E21B34/06 ; E21B23/01 ; E21B33/136

Abstract:
A method for cementing a wellbore having a lost circulation zone includes installing a cement basket around a casing string having a casing diameter, and running and setting the casing string in the wellbore. The cement basket is set in proximity of and up hole from the lost circulation zone. The method includes pumping a cement slurry, through the casing string, to a first depth downhole from the cement basket, running a first tubing, having a tubing diameter, into an annulus between the casing string and the wellbore, and pumping the cement slurry, through the first tubing, to a second depth up hole from the cement basket. The tubing diameter is less than the casing diameter.
Public/Granted literature
- US20230175348A1 CEMENT TOP JOB WITH NON-RETRIEVABLE TUBING Public/Granted day:2023-06-08
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