蚂蚁追踪技术在随钻跟踪及井位优化中的应用——以番禺30-1气田为例
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摘要
基于蚂蚁算法的蚂蚁追踪技术是近几年发展起来的一种先进的优化算法,主要用于断裂系统自动解释技术,能够通过自定义相关参数,对目标区满足要求的大断层、小断层进行精细刻画和定量描述。在番禺30-1气田开发井的随钻过程中,应用该技术识别出了地震体和方差体中难以辨认的小断层和裂缝,分析了导致水平井钻井过程中漏失的原因,并描述了小断层、裂缝的特征,据此为钻井风险的预判提供了依据。以及为后续水平井位的优化提供有价值的参考。实钻结果证实,井位优化效果很好,充分满足了预期的设计要求。
Ant-tracking technique based on ant-tracking algorithm is a kind of modern optimization algorithm which is developed in recent years. It is mainly applied to automatically interpret faults system, and faults in target area can be finely and measurable described by setting some relative parameters. In PY30-1 gas field drilling period, using anttracking can identify some small faults and fractures which are hard to be figured out in seismic volume and seismic varince volume. By analyzing the reason of mud leaking which happened in horizontal well drilling and describing the character of fault and fracture, the supporting evidence is provided for evaluation of drilling risk and valuable reference to well -placement optimization. The method works well in actual drilling and fully meet the expectation of design.
Ant-tracking technique based on ant-tracking algorithm is a kind of modern optimization algorithm which is developed in recent years. It is mainly applied to automatically interpret faults system, and faults in target area can be finely and measurable described by setting some relative parameters. In PY30-1 gas field drilling period, using anttracking can identify some small faults and fractures which are hard to be figured out in seismic volume and seismic varince volume. By analyzing the reason of mud leaking which happened in horizontal well drilling and describing the character of fault and fracture, the supporting evidence is provided for evaluation of drilling risk and valuable reference to well -placement optimization. The method works well in actual drilling and fully meet the expectation of design.
引文
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[2]朱刚,马良,高岩.元胞蚂蚁算法的收敛性分析[J].系统仿真学报,2007,19(7):1442.
[3]乐群星,魏法杰.蚂蚁算法的基本原理及其研究发展现状[J].北京航空航天大学学报:社会科学版,2005,18(4):5.
[4]张欣.蚂蚁追踪在断层自动解释中的应用—以平湖油气田放鹤亭构造为例[J].石油地球物理勘探,2010,45(2):278.
[5]孙夕平,杜世通.相干体技术算法研究及其在地震资料解释中的应用[J].石油大学学报:自然科学版,2003,27(2):32.
[6]郭强,梁若渺.蚂蚁追踪在雁木西油田白垩系构造中的应用[J].吐哈油气,2008,13(1):39.
[7]余德平,冯许魁.用三维相干数据体进行断层自动解释[J].石油地球物理勘探,1998,33(增1):105.
[8]宋代文,张峻清,万学鹏.PeriScope随钻成像测井技术在水平井中的应用[J].国外油田工程,2010,26(4):45.
[9]陆敬安,伍忠良,关晓春,等.成像测井中的裂缝自动识别方法[J].测井技术,2004,28(2):115.
[10]董伟,林畅松,谢利华,等.珠江口盆地番禺低隆起东南缘断裂破折带及其对低位域构造—岩性油气藏的控制作用[J].地球学报,2009,32(2):256.
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