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《Journal of Daqing Petroleum Institute》 2005-05
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Damage analysis of cement loop by means of ream-diameter technology of roll performing to bushing fail well

LIU he~1,WANG Wei-gang~2,WANG Su-ling~2(1.Oil Recovery Technology Institute of Daqing field,Daqing,Heilongjiang 163454,China;2.Mechanical Science and Engineering College,Daqing Petroleum Institute,Daqing,Heilongjiang 163318,China)  
The ream-diameter of roll performing is mending bushing technology which exerts less impact on the cement loop.Mechanical theory of roll performing is analyzed based on construction technology.Under the conditions of static state,mechanical model is built,and according to coordination condition,the force and deformation state of casing,cement loop and stratum are derived.The damage state and remaining the bear ability of cement loop,the first cementation surface and the second cementation surface are calculated.A set of calculative software is programmed and the factual well reshaping is calculated,the calculative result coincides with testing results and proves the correctness of the model in this paper.
【Fund】: 黑龙江省自然科学基金(A0310)
【CateGory Index】: TE931.2
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