地应力测井解释方法及其可靠性对比

doi:10.11885/j.issn.1674-5086.2020.11.13.01

西南石油大学学报(自然科学版) ›› 2022, Vol. 44 ›› Issue (6): 1-9.DOI: 10.11885/j.issn.1674-5086.2020.11.13.01

• 地质勘探 • 下一篇

地应力测井解释方法及其可靠性对比

王兆生¹, 曾联波², 李晶³, 刘道杰⁴, 于江涛¹

1. 辽宁工程技术大学矿业学院, 辽宁阜新 123000;
2. 中国石油大学(北京)地球科学学院, 北京昌平 102249;
3. 中国石油测井有限公司新疆分公司, 新疆克拉玛依 834000;
4. 中国石油冀东油田分公司, 河北唐山 063000

收稿日期:2020-11-13 发布日期:2023-01-16
通讯作者: 王兆生,E-mail:zhaoshengw@126.com
作者简介:王兆生,1983年生,男,汉族,黑龙江依兰人,副教授,博士,主要从事油气田开发地质、储层裂缝描述与预测和应力场分析方面的教学与研究工作。E-mail:zhaoshengw@126.com
曾联波,1967年生,男,汉族,湖南沅江人,教授,博士生导师,主要从事复杂油气储层(裂缝储层、低渗透储层、非常规油气储层)形成与分布的基础理论及关键技术研究。E-mail:lbzeng@sina.com
李晶,1983年生,女,汉族,新疆克拉玛依人,工程师,主要从事测井方法与解释方面的研究工作。E-mail:cjlij2008@cnpc.com.cn
刘道杰,1981年生,男,汉族,山东成武人,高级工程师,博士,主要从事油藏提高采收率及数值模拟的研究工作。E-mail:daojiedaojie@163.com
于江涛,1987年生,男,汉族,河南开封人,讲师,博士,主要从油气田开发地质和油藏数值模拟方面的教学与研究工作。E-mail:yujiangtao@126.com
基金资助:
国家科技重大专项（2017ZX05009001-002）；油气资源与探测国家重点实验室基金（PRP/open-1607）

In-situ Stress Logging Interpretation Methods and Reliability Analysis

WANG Zhaosheng¹, ZENG Lianbo², LI Jing³, LIU Daojie⁴, YU Jiangtao¹

1. College of Mining Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China;
2. College of Geosciences, China University of Petroleum, Changping, Beijing 102249, China;
3. Xinjiang Branch, Logging Company Limited, CNPC, Karamay, Xinjiang 834000, China;
4. Jidong Oilfield Company Limited, CNPC, Tangshan, Hebei 063000, China

Received:2020-11-13 Published:2023-01-16

摘要/Abstract

摘要： 为了对比井壁崩落法、诱导裂缝法和波速各向异性法在地应力方位解释中精度差异，系统阐述了测井地应力方位分析的理论基础、解释方法和影响因素。结果表明，基于成像测井资料的钻井诱导裂缝法和井壁崩落法解释G6井在沙河街组三段最大水平主应力S_H优势方位为70°~80°，与邻井微地震监测反演结果相一致。波速各向异性法和基于地层倾角测井资料的井壁崩落法解释S_H优势方位为80°~90°。测井地应力方位解释精度不同程度地受天然裂缝、断层和地层倾角等因素影响，综合分析认为钻井诱导裂缝法解释S_H方位结果最为准确。基于地层倾角测井的井壁崩落法解释S_H方位在研究区有约10°的误差。波速各向异性法解释S_H方位时，具有一定的局限性，需要进一步校正。

关键词: 地应力, 井壁崩落, 诱导裂缝, 波速各向异性, 解释方法

Abstract: In order to compare the difference in accuracy between borehole breakout, drilling-induced fracture and wave velocity anisotropy methods in interpreting in-situ stress orientation, the theoretical basis, interpretation methods and influencing factors of in-situ stress azimuth analysis by logging data were systematically expounded in this paper. The results show that the present-day maximum principal stress(S_H) orientation of the third section of the Shahejie Formation in Well G6 is 70°~80°, interpreted by imaging logging data and combined with drilling-induced fracture and borehole breakout methods, which is consistent with the micro seismic monitoring results of adjacent wells. While the wave velocity anisotropy method and the borehole breakout method based on six arm dip-logging data interpret that the S_H orientation is 80°~90°. The interpretation accuracy of in-situ stress orientation is affected by natural fracture, fault and formation dip angle, after comprehensive analysis, the in-situ stress orientation results are the most accurate interpreted by drilling-induced fracture method basing on imaging logging. There is a systematic error about 10° of the in-situ stress orientation interpreted by the borehole breakout method basing on the dip-logging in the study area. There are some limitations in the interpretation of in-situ stress orientation with dipole acoustic logging data and wave velocity anisotropy method, which need further correction.

Key words: in-situ stress, borehole breakout data, drilling-induced fracture, wave velocity anisotropy, interpretation method

中图分类号:

TE122

王兆生, 曾联波, 李晶, 刘道杰, 于江涛. 地应力测井解释方法及其可靠性对比[J]. 西南石油大学学报(自然科学版), 2022, 44(6): 1-9.

WANG Zhaosheng, ZENG Lianbo, LI Jing, LIU Daojie, YU Jiangtao. In-situ Stress Logging Interpretation Methods and Reliability Analysis[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(6): 1-9.

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地应力测井解释方法及其可靠性对比

In-situ Stress Logging Interpretation Methods and Reliability Analysis

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