弱地震反射层的断层定位方法
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摘要
断层的准确定位是圈闭精细描述的重点工作之一。在油气勘探开发实践中,弱地震反射目的层的断点位置往往难以确定,给钻探靶点的选择造成困难。本文针对断层定位问题,根据苏北盆地高邮凹陷阜三段沉积特征、地震反射特征和断层发育特点,结合生产实践,利用区域断裂体系的剖面、平面展布特征指导断层解释方案,总结了根据低级序断层解释的三个一致性法则进行断点间接定位的方法。通过该方法的应用,使阜三段构造方案得到进一步落实,提高了圈闭描述的精度。
The fault's accurate positioning is one of the key work to finely describe traps.In oil-gas exploration and development,weak seismic reflection target's breakpoint is often difficult to determine and lead difficulties to select drilling target.This paper focuses on the fault targeting issues,based on the deposition characteristics,seismic reflection and fault development characteristics of the 3rd Member of Funing Formation(E1f3) in Gaoyou Sag,combined with production practice,make use of researching regional fracture system section and plane distribution to guid faults' interpretation.The breakpoint targeting indirect positioning methods based on the Three-coincidence Principle of low-grade faults interpretation are lastly summarized.It is performed to be further implemented the E1f3 structure scheme and improved the trap description precision.
The fault's accurate positioning is one of the key work to finely describe traps.In oil-gas exploration and development,weak seismic reflection target's breakpoint is often difficult to determine and lead difficulties to select drilling target.This paper focuses on the fault targeting issues,based on the deposition characteristics,seismic reflection and fault development characteristics of the 3rd Member of Funing Formation(E1f3) in Gaoyou Sag,combined with production practice,make use of researching regional fracture system section and plane distribution to guid faults' interpretation.The breakpoint targeting indirect positioning methods based on the Three-coincidence Principle of low-grade faults interpretation are lastly summarized.It is performed to be further implemented the E1f3 structure scheme and improved the trap description precision.
引文
[1]刘玉瑞.苏北盆地油藏类型与成因机制探讨[J].油气地质与采收率,2011,18(4):6-9.
[2]王军,刘小燕.高邮凹陷北斜坡辉绿岩区解释方法研究[J].石油物探,2004,43(2):163-166.
[3]刘宇,李娜,王涛,等.断层的准确定位方法[J].断块油气田,2012,19(3):294-296.
[4]陈军,周彬,陈剑铭,等.利用侵入岩地震相变化特征识别断层[J].石油地球物理勘探,2011,46(5):790-794.
[5]任红民,陈军,张春峰,等.精细地震解释技术在花庄北地区的应用[J].石油地球物理勘探,2009,44(2):179-184.
[6]闫爱英,杨艳.高邮凹陷沙埝地区复杂地震资料的构造解释[J].石油物探,2006,45(1):93-97.
[7]周路,左虎,张峰,等.蠡县斜坡沙河街组构造及其演化特征[J].西南石油大学学报,2009,31(3):8-12.
[8]张永华.三维地震资料综合解释方法探讨[J].石油物探,2004,43(1):49-53.
[9]卢刚臣,孔凡东,李建英,等.乌马营地区一种特殊的断裂组合形式[J].石油地球物理勘探,2001,36(6):716-722.
[10]周志才,周杰,李崇灿,等.叠偏剖面的断层解释方法[J].石油物探,2002,41(2):207-210.
[11]李东安.三维断层组合[J].石油地球物理勘探,1992,27(4):525-535.
[2]王军,刘小燕.高邮凹陷北斜坡辉绿岩区解释方法研究[J].石油物探,2004,43(2):163-166.
[3]刘宇,李娜,王涛,等.断层的准确定位方法[J].断块油气田,2012,19(3):294-296.
[4]陈军,周彬,陈剑铭,等.利用侵入岩地震相变化特征识别断层[J].石油地球物理勘探,2011,46(5):790-794.
[5]任红民,陈军,张春峰,等.精细地震解释技术在花庄北地区的应用[J].石油地球物理勘探,2009,44(2):179-184.
[6]闫爱英,杨艳.高邮凹陷沙埝地区复杂地震资料的构造解释[J].石油物探,2006,45(1):93-97.
[7]周路,左虎,张峰,等.蠡县斜坡沙河街组构造及其演化特征[J].西南石油大学学报,2009,31(3):8-12.
[8]张永华.三维地震资料综合解释方法探讨[J].石油物探,2004,43(1):49-53.
[9]卢刚臣,孔凡东,李建英,等.乌马营地区一种特殊的断裂组合形式[J].石油地球物理勘探,2001,36(6):716-722.
[10]周志才,周杰,李崇灿,等.叠偏剖面的断层解释方法[J].石油物探,2002,41(2):207-210.
[11]李东安.三维断层组合[J].石油地球物理勘探,1992,27(4):525-535.
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