DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM

Cobern, Martin E.

APS Technology, Inc. (United States)

关键词: Monitoring;    Monitors;    Computerized Simulation;    Well Drilling;    Performance Testing;   

DOI  :  10.2172/825244
RP-ID  :  NONE
RP-ID  :  FC26-02NT41664
RP-ID  :  825244

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program entails modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype. The project continues to advance, but is behind the revised (14-month) schedule. Tasks 1-3 (Modeling, Specification and Design) are all essentially complete. The test bench for the Test and Evaluation (Tasks 4 & 5) and the laboratory prototype were constructed by the end of the period. During assembly, however, several of the key subassemblies became galled together, and had to be cut apart. These parts are being remachined with harder surfaces to prevent recurrence of this problem. One key component, the MR damper mandrel, has been redesigned into a three-piece assembly which will facilitate assembly and reduce the cost of replacement of worn components. The remade parts will be delivered by April 19, and the prototype assembled. Testing will begin during the first week of May and is anticipated to be completed before the revised end date for Phase I, May 31, 2004.