Invention Grant
- Patent Title: Real-time annulus pressure while drilling for formation integrity test
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Application No.: US15146590Application Date: 2016-05-04
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Publication No.: US10419018B2Publication Date: 2019-09-17
- Inventor: Yong Sun , Bo Yu , Sandra Reyes Ribera , Aldrick Garcia-Mayans
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Main IPC: E21B47/13
- IPC: E21B47/13 ; H03M7/30 ; E21B47/06 ; E21B47/12 ; E21B47/18 ; E21B49/00 ; E21B21/08

Abstract:
Aspects of the disclosure can relate to a process for transmitting a pump-off pressure profile for formation integrity testing within a limited bandwidth. For example, a process may include measuring pump-off pressure data. The pump-off pressure data represents the pump-off pressure profile. The method also includes determining, from the pump-off pressure data, a pump-off pressure data portion corresponding to a formation integrity testing characteristic. The method also includes compressing pump-off pressure data portion with a compression protocol to produce compression bits. The compression bits representing the pump-off pressure data portion corresponding to the formation integrity testing characteristic. The method also includes transmitting, via a communication module, the compression bits to a computing device.
Public/Granted literature
- US20170170842A1 Real-Time Annulus Pressure While Drilling for Formation Integrity Test Public/Granted day:2017-06-15
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