| 塔河油田盐膏层钻井工艺探讨 |
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| 引用本文： | 鲁小辉,杨兆中.塔河油田盐膏层钻井工艺探讨[J].达县师范高等专科学校学报,2009,19(2):119-121. |
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| 作者姓名： | 鲁小辉 杨兆中 |
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| 作者单位： | 鲁小辉,LU Xiao-hui(西南石油大学研究生部,四川成都,610500;中石化西南工程公司湖南钻井公司,新疆轮台,841600);杨兆中,YANG Zhao-zhong(西南石油大学研究生部,四川成都,610500)
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| 摘 要： | 塔河油田具有盐膏层埋藏深、厚度大、压力高、层间变化大、塑性变形严重的特征。因此，如何解决在盐膏层钻进过程中出现的“溶、缩、塌、胀、漏、卡、喷、损”等复杂问题，是钻井工程的重点与难点。通过分析盐膏层的地层特性，论述了盐膏层的蠕变机理，同时对盐膏层钻井液技术以及特殊钻井工艺方面进行了探讨。研究结果表明，通过调整钻井液密度及增加氯根浓度可有效地抑制蠕变，同时结合承压堵漏及随钻扩孔等工艺措施可有效解决盐膏层蠕变引起的井下复杂事故。
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| 关 键 词： | 盐膏层 塑性蠕变 钻井液密度 承压堵漏 随钻扩孔 |
On the Drilling Technology of Salt-gypsum Layer in Tahe Oilfield |
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| LU Xiao-hui,YANG Zhao-zhong.On the Drilling Technology of Salt-gypsum Layer in Tahe Oilfield[J].Journal of Daxian Teachers College,2009,19(2):119-121. |
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| Authors: | LU Xiao-hui YANG Zhao-zhong |
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| Institution: | 1.The Graduate School;Southwest Petroleum University;Chengdu Sichuan 610500;China;2.Hunan Drilling Company;Sinopec Southwestern Engineering Company;Luntai Xinjiang 841600;China |
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| Abstract: | Tahe Oilfield has a salt-gypsum layer with the features of deep bury,thick,high pressure,great changes between layers,and severe plastic deformation.Therefore,how to solve the salt-gypsum layer in the drilling process of "melting,shrinkage,collapse,bulging,leaking,cards,spraying,damage" and other complex issues is the focus of drilling engineering and difficulties.This paper has analyzed the salt-gypsum layer formation characteristics and the platsticcreep mechanism,while salt-gypsum layer of drilling fluid... |
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| Keywords: | salt-gypsum layer plastic creep change drilling fluid density pressure plugging reaming-while-drilling |
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