Position: Home > Articles > The Combination and Analysis of Low Angle Fracture Cutting Relations in Plane
Journal of Yangtze University(Natural Science Edition)Agricultural Science Volumn
2019
(3)
23-27+5
平面低角度断裂切割关系组合与解析
作 者：
焦立波
单 位：
中海石油(中国)有限公司湛江分公司
关键词：
断裂组合;断裂识别;平衡剖面
摘 要：
海中凹陷东区断裂切割复杂,层位和断层闭合困难。依据区域构造应力场与区域断裂走向的匹配关系,从断裂识别入手,对地震资料进行保边滤波处理,提取等时相干切片,对F2断层进行识别。依据平衡剖面原理,逐层回剥,反演各时期的构造变化,F1断层形成时期晚于F2断层;在平面上,F2断层东段与F1断层呈低角度切割,近平行切割;在剖面上,F1断层、F2断层倾向相反,形成"X"型断裂。上述方法解决了研究区层位闭合困难的问题,迂回追踪的层位解释可靠,断裂组合合理,扩大了圈闭规模,具有较大的勘探现实意义。
译 名：
The Combination and Analysis of Low Angle Fracture Cutting Relations in Plane
作 者：
Jiao Libo;Zhajiang Branch Company,CNOOC;
关键词：
fault combination;;fault identification;;balanced section
摘 要：
It was difficult to close the horizons and faults because of fracture cutting complex relationship in the eastern area of Haizhong Depression.According to the match relations between the regional tectonic stress field and faults strike,starting from the fault identification,the coherent slice was extracted after the seismic data were processed with edge preserving filtering,Fault F2 was identified.Based on the principle of balanced section,the inversion of tectonic changes of each period was carried out by back stripping tectonics,the formation period of Fault F1 was later than F2,F1 was nearly parallel to the cutting section in the eastern part of Fault F2 in plane.Faults F1 and F2 were on the opposite in tendency and against each other,they formed"X"type fracture.The above method solves the problem of the difficulty of horizon closure in the study area.It is of great practical significance for exploration because of the reliable interpretation of the detour tracing the reasonable fault combination and the enlargement of the trap scale.
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