Invention Grant
- Patent Title: System and method for surface to downhole communication without flow
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Application No.: US16881546Application Date: 2020-05-22
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Publication No.: US11293282B2Publication Date: 2022-04-05
- Inventor: Andreas Peter
- Applicant: Andreas Peter
- Applicant Address: DE Celle
- Assignee: Andreas Peter
- Current Assignee: Andreas Peter
- Current Assignee Address: DE Celle
- Agency: Cantor Colburn LLP
- Main IPC: E21B47/22
- IPC: E21B47/22 ; E21B47/008 ; E21B47/06 ; E21B47/24

Abstract:
A flow-off telemetry system and method of communicating information from a downhole location in a borehole to a surface location while fluid circulation is off. A string is conveyed in the wellbore to define an inner bore and an annulus. During a flow-off condition, an inner bore sealing element closes the inner bore to create a first standing column of fluid in the inner bore, and an annulus sealing element closes the annulus to form a second standing column of fluid in the annulus. A bypass valve in the string at a downhole location between the first standing column of fluid and the second standing column of fluid is activated to generate a pressure pulse including information for performing an action. The pressure pulse is received at a pressure sensor at the surface location and a controller performs an action in response to the information in the pressure pulse.
Public/Granted literature
- US20200370427A1 SYSTEM AND METHOD FOR SURFACE TO DOWNHOLE COMMUNICATION WITHOUT FLOW Public/Granted day:2020-11-26
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