| 苏里格气田定向井井壁稳定性分析研究 |
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| 引用本文： | 何卫滨,刘瀚宇,黄峰,刘学敏,朱强,李磊. 苏里格气田定向井井壁稳定性分析研究[J]. 石油地质与工程, 2011, 25(1): 98-100,145,146 |
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| 作者姓名： | 何卫滨 刘瀚宇 黄峰 刘学敏 朱强 李磊 |
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| 作者单位： | 1. 渤海钻探工程有限公司油气合作开发公司,天津大港,300283
2. 渤海钻探井下服务公司试油作业部 |
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| 摘 要： | 通过坐标转换关系,建立了定向井井壁围岩的应力分布函数,分析了定向井井壁周围应力的分布情况.依据库伦-摩尔强度准则和最大拉应力破裂准则,建立定向井井壁坍塌压力和破裂压力计算模型,并据此编制了定向井井壁稳定计算分析软件.利用苏里格气田某井的实际数据资料,计算出了定向井井壁坍塌压力和破裂压力,绘制出坍塌压力和地层破裂压力随井...
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| 关 键 词： | 定向井 井壁稳定 坍塌压力 破裂压力 苏里格气田 |
Study on borehole stability analysis of directional well in Sulige gasfield |
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| Affiliation: | He Weibin et al(Oil and Gas Cooperation Development Company of Bohai Drilling Engineering Co.Ltd.,Dagang,Tianjing 300283) |
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| Abstract: | A stress distribution function of directional well rock wall is set up and the stress distribution of directional well wall surrounding is analyzed through the coordinate transformation system.The collapse pressure and breakdown pressure calculation model of directional well is created based on Mohr-Coulomb strength criterion and the maximum tensile stress rupture criteria.Computational analysis software of directional well for borehole stability is established according to above results.Collapse pressure and breakdown pressure of borehole is determined and the relationship map between collapse pressure and breakdown pressure varies with azimuth of deviation angle is set up obtaining minimization drilling risk along the minimum horizontal principal stress direction. |
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| Keywords: | Directional well borehole stability collapse pressure breakdown pressure Sulige gas field |
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