利用地震数据反演改进复杂油藏钻井工艺
|
摘要
广东湛江W12-1北油田开发过程中遇到了钻井中井壁易垮塌、易剥落的难题,易造成井壁坍塌、掩埋钻井及仪器事故。为此,开展了系统研究工程,进行多学科、多角度的钻井井壁稳定性研究,即改进钻井地质力学的基本理论研究、精细化处理地震剖面图、岩心的古地磁应力测试、地层应力等势面的计算机模拟,井下岩心浸泡进行稳定周期预测等。研究结果在2005年该油田10口开发井的钻井设计、工艺编制与钻井实践中应用后,获得了预期的效果。
North W12-1 Oilfield in Zhanjiang of Guangdong province has drilling problems of borehole wall collapse and stripping, which had often caused accidents of well and instrument burial. Therefore, borehole wall stability is systematically studied by applying multidiscipline, such as improving the basic theory of drilling geomechanics, precisely processing seismic profile, testing palaeomagnetic stress with core, computer simulation of equipotential surface of formation stress, and predicting stable period by core soaking. The result of this study had been applied in drilling design and operation of 10 development wells in this oilfield in 2005 and had achieved the desired results.
North W12-1 Oilfield in Zhanjiang of Guangdong province has drilling problems of borehole wall collapse and stripping, which had often caused accidents of well and instrument burial. Therefore, borehole wall stability is systematically studied by applying multidiscipline, such as improving the basic theory of drilling geomechanics, precisely processing seismic profile, testing palaeomagnetic stress with core, computer simulation of equipotential surface of formation stress, and predicting stable period by core soaking. The result of this study had been applied in drilling design and operation of 10 development wells in this oilfield in 2005 and had achieved the desired results.
引文
[1]郭永峰,金晓剑,陈志忠.确定钻井过程中严重沉砂段的方法及装置[P].中国专利,专利号01123846.1,2001-08-03.
[2]廖志敏,刘洪波.“零事故”背后的故事[N].中国海洋石油报,2005-08-03.
[3]Ramos G G ARCO EPT.Integrating rock mechanics with drilling strategies in a tectonic belt[M/CD].Offshore Ba-li,Indonesia,SPE47286,1998.
[4]Stephen Edwards,BP America.Imaging unstable wellbores while drilling[M/CD].SPE/IADC79846,2003.
[5]Willson S M,Amoco pic B P,Zobackk MD.Stanford Uni-versity,Drilling in South America:Awellbore stability ap-proach for complex geologic conditions[M/CD].SPE53940,1999.
[6]Guo Yongfeng,Jin Xiaojian.An improved method for pre-dicting pore pressure of formation in offshore[M/CD].SPE80492,Jakarta,Indonesia,Sep.2003.
[7]郭永峰,金晓剑,谭树人.结构力学分析方法在南海水平井钻进预测中的应用[J].计算力学学报,2001,18(1):88~93.
[8]郭永峰,金晓剑,谭树人.非线性有限元在水平井中的应用[J].石油学报,1999,20(4):69~73.
[9]韩文明.地震技术在复杂岩性油藏勘探与开发中的综合应用——以涠洲12-1油田北块为例[J].中国海上油气(地质),2003,17(5):331~334.
[2]廖志敏,刘洪波.“零事故”背后的故事[N].中国海洋石油报,2005-08-03.
[3]Ramos G G ARCO EPT.Integrating rock mechanics with drilling strategies in a tectonic belt[M/CD].Offshore Ba-li,Indonesia,SPE47286,1998.
[4]Stephen Edwards,BP America.Imaging unstable wellbores while drilling[M/CD].SPE/IADC79846,2003.
[5]Willson S M,Amoco pic B P,Zobackk MD.Stanford Uni-versity,Drilling in South America:Awellbore stability ap-proach for complex geologic conditions[M/CD].SPE53940,1999.
[6]Guo Yongfeng,Jin Xiaojian.An improved method for pre-dicting pore pressure of formation in offshore[M/CD].SPE80492,Jakarta,Indonesia,Sep.2003.
[7]郭永峰,金晓剑,谭树人.结构力学分析方法在南海水平井钻进预测中的应用[J].计算力学学报,2001,18(1):88~93.
[8]郭永峰,金晓剑,谭树人.非线性有限元在水平井中的应用[J].石油学报,1999,20(4):69~73.
[9]韩文明.地震技术在复杂岩性油藏勘探与开发中的综合应用——以涠洲12-1油田北块为例[J].中国海上油气(地质),2003,17(5):331~334.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心