利用套管变形量进行地应力反演

尹虎; 李黔; 李建涛; 黄建智

doi:10.3969/j.issn.1001-0890.2012.03.011

利用套管变形量进行地应力反演

1.
西南石油大学石油工程学院, 四川成都 610500;
2.
中国石油青海石油管理局井下作业公司, 青海格尔木 816000

基金项目:

国家科技重大专项"大型油气田及煤层气开发"项目21"深井钻录、测试技术和配套装备"(编号:2008ZX05021)资助

详细信息

作者简介:
尹虎(1978-),男,四川蓬安人,2000毕业于西南石油学院地质专业,2007年获四川大学岩土工程专业博士学位,讲师,硕士生导师,主要从事油气井工程方面的教学和科研工作.

中图分类号: TE21
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出版历程
- 收稿日期: 2010-07-06
- 修回日期: 2012-02-22
- 刊出日期: 1899-12-31

Inversion of In-Situ Stress with the Amount of Casing Deformation

1.
College of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, China;
2.
Downhole Operation Company, Qinghai Petroleum Administration, CNPC, Golmud, Qinghai, 816000, China

摘要

摘要: 地应力是石油工程设计与施工所需要的重要参数之一。通常获取地应力大小的方式是通过水压致裂法直接测量、室内试验以及测井资料计算得到,但水压致裂法和室内试验法获取地应力的成本较高,根据测井资料计算地应力需要根据经验校正。而油田具有丰富的套管变形资料,因此,可以利用套管变形量进行反演获取地应力。利用已知的套管变形量作为基础条件,构造符合套管在井下的边界椭圆应力模式,选择测点计算最大变形量与测量最大变形量差值的平方为目标优化函数,采用合理的优化技术对位移进行反分析来获取最大和最小地应力。利用该方法对新疆某油田的A井进行了分析,结果表明,采用该方法能快速有效地计算出套管变形条件下的实际非均匀载荷大小,且计算结果与利用测井资料计算出的结果相差不大,可为合理设计套管柱、减少套管损坏提供依据,为油田获取地应力提供一种新的途径。
- 套管变形 /
- 地应力 /
- 反演
Abstract: In-situ stress is one of the important parameters for petroleum engineering design and operation.Usually in-situ stress is obtained by direct measurement and laboratory test,the two methods are higher cost,but oil field has much more data for casing deformation,it can be used to conduct inversion and calculation to get in-situ stress.Taking casing deformation data as the premise condition,in-situ stress inversion can be made to establish the oval stress boundary mode,which is consistent with down hole conditions of casing.The square of difference between calculated maximum deformation and measured maximum deformation is taken as the optimization objective function,the inverse analysis of casing displacement can be done to obtain the maximum and minimum stresses.This method has been used to analyze Well A in Xinjiang Oilfield,the results show that,the value of actual non-uniform load can be calculated rapidly under the casing deformation conditions by this method,and the calculation result has very little error compared with the result obtained from logging data,which provides the basis for rational design of casing strings,and eliminating the casing damage,it has offered a new way to get the in-situ stress for oil fields.
- casing deformation /
- in-situ stress /
- inversion

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参考文献(11)

[1]	刘钦节,闫相祯,杨秀娟.优化反分析方法在地应力与裂缝研究中的应用[J].石油钻探技术,2009,37(2):26-31. Liu Qinjie,Yan Xiangzhen,Yang Xiujuan.Application of optimization back analysis method in resevoir stress and fracture study[J].Petroleum Drilling Techniques,2009,37(2):26-31.
[2]	赵永强.成像测井综合分析地应力方向的方法[J].石油钻探技术,2009,37(6):39-43. Zhao Yongqiang.A method of analyzing crustal stress orientation using imaging logging[J].Petroleum Drilling Techniques,2009,37(6):39-43.
[3]	葛洪魁,林英松,张卫东,等.钻井地层评价技术研究进展[J].石油钻探技术,2003,31(5):20-23. Ge Hongkui,Lin Yingsong,Zhang Weidong,et al.Advances in drilling formation evaluation[J].Petroleum Drilling Techniques,2003,31(5):20-23.
[4]	陈朝伟,殷有泉,蔡永恩,等.利用套管变形测井资料反演储层应力场[J].岩石力学与工程学报,2007,26(4):734-739. Chen Zhaowei,Yin Youquan,Cai Yongen,et al.Back analysis of reservoir stress field with logging data of casing deformation[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(4):734-739.
[5]	王芝银,杨志法,王思敬.岩石力学位移反演分析回顾及进展[J].力学进展,1998,28(4):488-498. Wang Zhiyin,Yang Zhifa,Wang Sijing.A review on inverse analysis of displacements in rock mechanics[J].Advances in Mechanics,1998,28(4):488-499.
[6]	韩荣荣,张建海,张肖,等.地应力场反演回归分析的一种改进算法[J].四川水利,2008,29(4):72-74. Han Rongrong,Zhang Jianhai,Zhang Xiao,et al.A improved algorithm of inversion regression analysis for ground stress field[J].Sichuan Water Conservancy,2008,29(4):72-74.
[7]	郭明伟,李春光,王水林,等.优化位移边界反演三维初始地应力场的研究[J].岩土力学,2008,29(5):1269-1274. Guo Mingwei,Li Chunguang,Wang Shuilin,et al.Study on inverse analysis of 3-D initial geostress field with optimized displacement boundaries[J].Rock and Soil Mechanics,2008,29(5):1269-1274.
[8]	程滨,王水林,李春光.采用位移边界条件拟合初始地应力场的研究[J].矿业研究与开发,2006,26(1):28-30,86. Cheng Bin,Wang Shuilin,Li Chunguang.Study on fitting initial geostress field with displacement boundary conditions[J].Mining Research and Development,2006,26(1):28-30,86.
[9]	李翠华,刘礼华,熊威.位移边界模拟初始地应力的方法及其应用[J].武汉大学学报:工学版,2007,40(1):110-113. Li Cuihua,Liu Lihua,Xiong Wei.Displacement boundary technique for simulation of initial geostress and its application[J].Engineering Journal of Wuhan University,2007,40(1):110-113.
[10]	金艳丽,刘汉东.初始地应力场反演及回归分析方法研究[J].隧道建设,2004,24(2):6-8. Jin Yanli,Liu Handong.Research on initial geostress field and regression analysis methods[J].Tunnel Construction,2004,24(2):6-8.
[11]	闫相祯,杨秀娟,冯耀荣,等.蠕变地层套管外载计算的位移反分析法[J].中国石油大学学报:自然科学版,2006,30(1):102-106. Yan Xiangzhen,Yang Xiujuan,Feng Yaorong,et al.Displacement inverse analysis of casing external loads of creep stratum[J].Journal of China University of Petroleum:Edition of Natural Science,2006,30(1):102-106.

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文章访问数: 2636
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利用套管变形量进行地应力反演

作者简介: 尹虎(1978-),男,四川蓬安人,2000毕业于西南石油学院地质专业,2007年获四川大学岩土工程专业博士学位,讲师,硕士生导师,主要从事油气井工程方面的教学和科研工作.

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出版历程

Inversion of In-Situ Stress with the Amount of Casing Deformation

计量

出版历程

目录

作者简介:
尹虎(1978-),男,四川蓬安人,2000毕业于西南石油学院地质专业,2007年获四川大学岩土工程专业博士学位,讲师,硕士生导师,主要从事油气井工程方面的教学和科研工作.