川西凹陷新场气田三维地应力场反演分析
Three-dimensional inversion of geostress in Xinchang gas field, Western Sichuan Sag
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文摘
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根据川西凹陷新场地区及邻区已有的地层岩性、地质构造及其演化等资料,结合深部岩体钻井岩心裂缝发育特征编录、完井报告、录井测井地应力和裂缝分析成果,建立了研究区的地质模型。利用已有的井孔崩落、钻井诱导缝分析、水压致裂曲线分析、岩石Kaiser效应测试等技术所获得的地应力资料,作为计算模型的应力边界条件和地应力场反演的井段现今地应力参考值,采用三维数值模拟技术对川西凹陷新场气田进行了三维地应力场反演分析。研究结果表明,总体上最大水平主应力以近NEE-SWW向为主,但在断层附近主应力方向发生明显偏转,主体方位与区域构造应力作用主方向一致。各主地应力值总体上随深度的增加而变大,与深度之间有较好的线性相关关系,由于新场须二段各目的层均发育较多断裂构造,因此其应力场表现出明显的不连续性,使地应力值和方向发生局部变化,在断层端部和转折部位表现出较明显的最大主应力和剪应力集中现象,而在断层两盘部位则出现应力消散特点。 |
其他语种文摘
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According to the formation lithology, geological structure and structure evolution of Xinchang area and its vicinity in the Western Sichuan Sag, the geologic model of research area was established, combining with the analysis results of drilling core fracture development characteristics, well reports, geostress and crack analysis. Geostress data were obtained from the analysis of borehole breakout data, drilling-induced fracture, hydraulic fracturing curve and rock Kaiser effect test. Those data were used as modern geostress reference values during model boundary conditions computing and geostress field inversion. The research results show that generally the maximum horizontal principal stress is nearly NEE-SWW. But it is apparently deflected near to the faults. And main subject orientation and regional tectonic stress are in the same direction. On the whole, main stress value increases with depth, and it has a good linear relationship with depth. Since fault structures developed in every stratum in the second member of the Xujiahe Formation, stress field shows obvious discontinuity, which makes geostress change in values and direction. There are obvious maximum principal stress and shear stress concentration phenomenon in fault ends and turning parts. However, stress dissipating appears in both sides of fault. |
来源
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石油实验地质
,2014,36(6):792-797 【核心库】
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关键词
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地质模型
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三维数值模拟
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地应力反演
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新场气田
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川西凹陷
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地址
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成都理工大学, 地质灾害防治与地质环境保护国家重点实验室, 成都, 610059
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1001-6112 |
学科
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石油、天然气工业 |
基金
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国家自然科学基金
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文献收藏号
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CSCD:5297614
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参考文献 共
19
共1页
|
1.
马寅生. 地应力在油气地质研究中的作用意义和研究现状.
地质力学学报,1997,3(2):41-46
|
被引
13
次
|
|
|
|
2.
Klee G. Hydraulic fracturing stress mea-surements in Hong Kong.
International Journal of Rock Mechanics and Mining Sciences,1999,36(6):731-741
|
被引
12
次
|
|
|
|
3.
Ito T. Hydraulic fracture reopening pressure and the estimation of maximum horizontal stress.
International Journal of Rock Mechanics and Mining Sciences,1999,36(6):811-826
|
被引
26
次
|
|
|
|
4.
Shin K. Application of Weibull's theory to estimating in situ maximum stress σH by hydro fracturing.
International Journal of Rock Mechanics and Mining Sciences,2001,38(3):413-420
|
被引
3
次
|
|
|
|
5.
Bell J S. Practical methods for estimating in situ stresses for borehole stability applications in sedimentary basins.
Journal of Petroleum Science and Engineering,2003,38(3/4):111-119
|
被引
11
次
|
|
|
|
6.
俞言祥. 用斜井钻孔崩落资料反演上地壳应力状态的遗传算法.
华北地震科学,2003,18(1):1-8
|
被引
1
次
|
|
|
|
7.
Brudy M. Drilling-induced tensile wall-fractures:implications for determination of in-situ stress orientation and magnitude.
International Journal of Rock Mechanics Mining Sciences,1999,36(2):191-215
|
被引
13
次
|
|
|
|
8.
Lavrov A. The Kaiser effect in rocks:principles and stress estimation techniques.
International Journal of Rock Mechanics and Mining Sciences,2003,40(2):151-171
|
被引
49
次
|
|
|
|
9.
丁原辰. 声发射估计岩石古应力的实验研究.
地质力学与地壳运动:地质力学开放研究实验室1991-1992年报,1994:43-55
|
被引
1
次
|
|
|
|
10.
孙宝珊. 声发射法测量古今应力在油田的应用.
地质力学学报,1996,2(2):11-17
|
被引
26
次
|
|
|
|
11.
马建海. 用测井资料计算地层应力.
测井技术,2002,26(4):347-351
|
被引
24
次
|
|
|
|
12.
钟方平. 深层地下地应力测量.
应用力学学报,2000,17(3):59-62
|
被引
2
次
|
|
|
|
13.
Deng Hui. Application of three-dimensional numerical calculation to geo-stress field analysis of oil or gas reservoir.
2010 International Conference on Computational and Information Sciences,2010:971-974
|
被引
1
次
|
|
|
|
14.
中石化西南油气分公司.
新场构造带天然气增储领域及勘探目标评价,2012
|
被引
1
次
|
|
|
|
15.
张红艳. 四川芦山地震区域构造环境与构造应力场特征.
地球科学与环境学报,2013,35(2):99-106
|
被引
5
次
|
|
|
|
16.
陈迎宾. 大邑构造须家河组气藏裂缝发育特征及主控因素.
石油实验地质,2013,35(1):29-35
|
被引
12
次
|
|
|
|
17.
成都理工大学.
新场须二段地应力与裂缝分布规律研究,2013
|
被引
1
次
|
|
|
|
18.
梁利喜.
深部应力场系统评价与油气井井壁稳定性分析研究,2008
|
被引
3
次
|
|
|
|
19.
张守仁. 川西坳陷孝泉-新场地区须家河组二-四段构造应力场模拟及裂缝发育区带预测.
石油与天然气地质,2004,25(1):70-74,80
|
被引
22
次
|
|
|
|
|