A Discussion on Several Issues about Fault Sealing

Abstract

Abstract: Fault sealing is characterized by heterogeneities both in time and space. Based on the analysis of the deposition, tectonic and stress field evolution, using shale smears and section stress methods, a quantitative research on lateral or vertical sealing of fault in different stages is conducted, and a comprehensive evaluation of them is made integrated with other influenced factors. The evaluation standards are different because of the difference between the fault seal oil ability and the fault seal gas ability. Study indicates that the evaluation of fault sealing with synthetic fuzzy judgment is more believable than some methods with incomplete consideration of influenced factors. Besides, the analysis of fault sealing with uncertainty method is indispensable to evaluate the confidence levels of all methods for fault sealing study.

Key words: fault sealing, heterogeneity, synthetic fuzzy judgment, uncertainty

CLC Number:

P542.3

WANG Dong-ye, ZHA Ming, WU Kong-you. A Discussion on Several Issues about Fault Sealing[J]. Xinjiang Petroleum Geology, 2007, 28(4): 513-515.

References

[1] 吕延防, 付广, 张云峰, 等. 断层封闭性研究[M]. 北京:石油工业出版社, 2003: 93-97.
[2] 查明, 张一伟, 邱楠生, 等. 油气成藏条件及主要控制因素[M]. 北京: 石油工业出版社, 2003: 71-80.
[3] 赵密福. 断层封闭性研究现状[J]. 新疆石油地质, 2004,25(3): 333-335.
[4] 鲁兵, 丁文龙. 断层封闭性研究进展[J]. 地质科技情报,1998, 17(3): 75-80.
[5] 付广, 刘洪霞, 段海风. 断层不同输导通道封闭机理及其研究方法[J]. 石油实验地质, 2005, 27(4): 404-408.
[6] 陈永峤, 周新桂, 于兴河, 等. 断层封闭性要素与封闭效应[J]. 石油勘探与开发, 2003, 30(6): 38-40.
[7] 吴孔友, 查明, 王绪龙, 等. 准噶尔盆地莫索湾地区断层控油作用[J]. 地质力学学报, 2005, 11(1): 60-65.
[8] Barton C A, Zoback MD, Moos D. Fluid flowalong potentially active faults in crystalline rock [J]. Geology, 1995, 23:683-686.
[9] Dholakia S K, Aydin A, Pollard D D, et al. Fault-controlled hydrocarbon pathways in the Monterey formation, CA[J].AAPG Bulletin, 1998, 82: 1 551-1 574.
[10] Weber K J, Mandl G, Pilaar F, et al. The role of faults in hydrocarbon migration and trapping in Nigeria growth fault structure[C]. Off shore Technology Conference 10(Paper OTC 3356), 1978, 2 643-2 653.
[11] Alton Brown. Capillary effects on fault-fill sealing[J]. AAPG Bulletin, 2003, 87(3): 381-395
[12] Allan A S. Model for hydrocarbon migration and entrapment within faulted structures[J]. AAPG Bulletin, 1989, 73:803-811.
[13] Jone R M, Hills R R. An integrated, quatitative apporach to assessing fault-seal risk [J]. AAPG Bulletin, 2003, 87(3): 507-523.
[14] Smith D A. Theoretical considerations of sealing and nonsealing faults[J]. AAPG Bulletin, 1966, 50(2): 363-374.
[15] Smith D A. Sealing and non-sealing faults in Louisiana gulf coast salt basin[J]. AAPG Bulletin, 1980, 64: 145-172.
[16] 李亚辉, 刘泽容, 陈利. 断层封闭演化史研究方法及其应用[J]. 石油大学学报, 1998, 22(3): 15-18.
[17] 付广, 孟庆芬. 断层静止期同一断裂带封油封气的差异性研究[J]. 断块油气田, 2004, 11(6): 7-9.
[18] 付广, 吕延防, 付晓飞, 等. 断层静止期垂向封气性评价标准的物理模拟实验及其应用[J]. 天然气工业,2005, 25(7): 20-22.
[19] 付广, 孟庆芬. 断裂带封闭油气所需泥质含量物理模拟[J]. 新疆石油地质, 2005, 26(3): 234-237.
[20] 付晓飞, 吕延防, 付广, 等. 逆掩断层垂向封闭性定量模拟实验及评价方法[J]. 地质科学, 2004, 39(2): 223-233.
[21] 付晓飞, 方德庆, 吕延防, 等. 从断裂带内部结构出发评价断层垂向封闭性的方法[J]. 地球科学—中国地质大学学报, 2005, 30(3): 328-335.
[22] 邓俊国, 刘泽容. 断块油藏中断层封闭性模糊综合评判[J]. 地质论评, 1993, 39(增刊): 47-54.