中石油渤海钻探工程技术研究院,中国石油大学〈华东〉石油工程学院,中石化胜利油田地质研究所,中石化胜利油田地质研究所
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中石油渤海钻探工程有限公司科技项目“钻井提速工具优化升级与现场试验”（编号：2016ZD17Y-1）
Bohai Drilling Engineering Technology Research Institute, CNPC,China University of Petroleum,Shengli Oilfield Geological Research Institute, SINOPEC,Shengli Oilfield Geological Research Institute, SINOPEC
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针对东辛复杂断块油藏泥岩夹层和断层附近套管损坏严重的问题，研究了套管在泥岩夹层和断层附近套损机理。研究表明，造成泥岩夹层和断层处套管损坏的主要原因是该层段的异常地应力。因此，在这2个层段，考虑异常地应力作用和承受非均匀地应力作用对套管强度的影响，提出了基于地应力的套管强度优化设计方法。
In view of the serious casing damage in the mudstone interlayer and near the fault of complex Dongxin fault block reservoir, the casing damage mechanism is studied. The studies demonstrate that the main causes of the casing damage in the mudstone interlayer and near the fault are the abnormal in-situ stress there. Therefore, considering casing damage caused by the abnormal stress and non-uniform stress in these 2 stratigraphic sections, the optimization design method of casing strength is put forward based on the in-situ stress.
引用本文
王建龙,张卫东,刘学松,等.基于地应力的套管强度优化设计方法[J].钻探工程,2018,45(1):31-33.
WANG Jian-long, ZHANG Wei-dong, LIU Xue-song, et al. Design Method of Casing Strength Optimization Based on In-situ Stress[J]. Drilling Engineering, 2018,45(1):31-33.
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- 收稿日期:2017-03-30
- 最后修改日期:2017-11-02
- 录用日期:2017-11-06
- 在线发布日期: 2018-02-27
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