Invention Grant
US08167038B2 System and method for deflection compensation in power drive system for connection of tubulars
有权
用于连接管道的动力传动系统中的偏转补偿系统和方法
- Patent Title: System and method for deflection compensation in power drive system for connection of tubulars
- Patent Title (中): 用于连接管道的动力传动系统中的偏转补偿系统和方法
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Application No.: US12534499Application Date: 2009-08-03
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Publication No.: US08167038B2Publication Date: 2012-05-01
- Inventor: Doyle Boutwell , John Newman , Graham Ruark , Aaron Dauphine
- Applicant: Doyle Boutwell , John Newman , Graham Ruark , Aaron Dauphine
- Applicant Address: US TX Houston
- Assignee: Weatherford/Lamb, Inc.
- Current Assignee: Weatherford/Lamb, Inc.
- Current Assignee Address: US TX Houston
- Agency: Patterson & Sheridan, L.L.P.
- Main IPC: E21B47/00
- IPC: E21B47/00

Abstract:
The present invention generally provides methods and apparatus for connecting threaded members while ensuring that a proper connection is made, particularly for premium grade connections. In one embodiment, a method of connecting threaded tubular members for use in a wellbore or a riser system is provided. The method includes the acts of operating a power drive unit, thereby rotating a first threaded tubular member relative to a second threaded tubular member; measuring the rotation of the first threaded tubular member; and compensating the rotation measurement by subtracting a deflection of at least one of: the power drive unit, and one of the tubular members.
Public/Granted literature
- US20090293640A1 SYSTEM AND METHOD FOR DEFLECTION COMPENSATION IN POWER DRIVE SYSTEM FOR CONNECTION OF TUBULARS Public/Granted day:2009-12-03
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