西南石油大学学报(自然科学版) ›› 2020, Vol. 42 ›› Issue (3): 13-20.DOI: 10.11885/j.issn.1674-5086.2019.08.04.04

• 地质勘探 • 上一篇    下一篇

断面汇聚脊输导能力定量评价及其控藏作用

李虹霖, 张如才, 王冰洁, 张江涛, 王鑫   

  1. 中海石油(中国)有限公司天津分公司, 天津 塘沽 300459
  • 收稿日期:2019-08-04 出版日期:2020-06-10 发布日期:2020-06-10
  • 通讯作者: 李虹霖,E-mail:lihl56@cnooc.com.cn
  • 作者简介:李虹霖,1989年生,男,汉族,山东烟台人,工程师,硕士,主要从事油气勘探综合研究工作。E-mail:lihl56@cnooc.com.cn;张如才,1981年生,男,汉族,湖北荆州人,高级工程师,硕士,主要从事油气勘探综合研究工作。E-mail:zhangrc@cnooc.com.cn;王冰洁,1984年生,男,汉族,陕西汉中人,高级工程师,博士,主要从事油气勘探综合研究工作。E-mail:wangbj6@cnooc.com.cn;张江涛,1988年生,男,汉族,山东青岛人,工程师,硕士,主要从事油气勘探综合研究工作。E-mail:zhangjt28@cnooc.com.cn;王鑫,1988年生,男,汉族,河南获嘉人,工程师,硕士,主要从事油气勘探综合研究工作。E-mail:wangxin73@cnooc.com.cn
  • 基金资助:
    国家科技重大专项(2016ZX05023-006)

Quantitative Evaluation of Faults Convergence Ridges Transport Capability and Its Controlling Effect on Hydrocarbon Accumulation

LI Honglin, ZHANG Rucai, WANG Bingjie, ZHANG Jiangtao, WANG Xin   

  1. CNOOC China Limited, Tianjin Branch, Tanggu, Tianjin 300459, China
  • Received:2019-08-04 Online:2020-06-10 Published:2020-06-10

摘要: 为研究旅大16油田油气差异富集原因,利用三维地震、断面曲率属性、三维热史模拟等方法,识别油源断裂断面汇聚脊,定量评价其输导油气能力,从而探讨断面汇聚脊对油气分布的控制作用。结果表明,研究区油源断裂共发育10条断面汇聚脊,断面汇聚脊受断面脊弯曲程度、断层活动性与接触烃源岩热演化程度匹配关系以及走滑压扭三因素耦合控制,输导油气能力差异明显。对比钻探结果,发现断面汇聚脊对于油气成藏具有明显控制作用:(1)断面汇聚脊控制浅层油气分布部位;(2)断面汇聚脊输导能力控制断块油气富集程度。该研究可为复杂断块区高丰度断块的优选提供技术支持与理论参考。

关键词: 断面汇聚脊, 断面曲率, 输导能力, 定量评价, 控藏作用

Abstract: In order to study the causes of differential enrichment of oil and gas in Lüda 16 Oilfield, we identified the convergence ridge of oil source fracture and evaluated their transporting capacity, and explored the controling effect of the convergence ridges of fault on the distribution of oil and gas by means of three-dimensional seismic, curvature property of faults and threedimensional thermal history simulation etc. The results show there are 10 convergence ridges developing in oil source faults in the study area. The transport abilities of converging ridges differ noticeable due to by the coupling of bending degree, matching relationship between activity and source rock and strike-slip tectonic stress. The comparison of drilling results shows that the convergence ridge of fault has obvious control effect on hydrocarbon accumulation:(1) converging ridges of faults control the shallow hydrocarbon distribution; (2) the transport ability of converging ridges control hydrocarbon enrichment degree of fault blocks. The study of convergence ridges of faults has important guiding significance for oil and gas exploration in complex fault block areas. The study can provide technical support and theoretical reference for the optimization of high-abundance fault blocks in complex fault areas.

Key words: convergence ridges of faults, curvature property of faults, transport capacity, quantitative evaluation, controlling effect on hydrocarbon accumulation

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