Invention Grant
- Patent Title: Method for determining uncertainty with projected wellbore position and attitude
- Patent Title (中): 用预测井眼位置和态度确定不确定性的方法
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Application No.: US12871197Application Date: 2010-08-30
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Publication No.: US08694257B2Publication Date: 2014-04-08
- Inventor: S. Ahmad Zamanian , Dimitrios Pirovolou
- Applicant: S. Ahmad Zamanian , Dimitrios Pirovolou
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Chadwick A. Sullivan; Brigitte Echols
- Main IPC: G01V1/40
- IPC: G01V1/40

Abstract:
A system and method for determining uncertainty of a wellbore orientation is disclosed. The system and method obtains a measurement related to a first orientation of a drill string at a measurement device. Based on the first orientation and drilling settings, the system and method predict a second orientation. A probability of the second orientation being within a predetermined area is also obtained. As a result of this information, an action may be taken, such as, skipping a planned static survey, obtaining a static survey prior to the plan, or changing a drilling setting.
Public/Granted literature
- US20120048618A1 METHOD FOR DETERMINING UNCERTAINTY WITH PROJECTED WELLBORE POSITION AND ATTITUDE Public/Granted day:2012-03-01
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