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天然气地球科学 ›› 2010, Vol. 21 ›› Issue (5): 809–814.doi: 10.11764/j.issn.1672-1926.2010.05.809

• 天然气地质学 • 上一篇    下一篇

饶阳凹陷蠡县斜坡地层流体压力分布规律及其对油气成藏的影响

杨帆, 于兴河, 李胜利, 张峰   

  1. 1.中国石油勘探开发研究院石油地质研究所,北京 100083；
    2.中国地质大学（北京）能源学院，北京 100083；
    3.华北油田评价部,河北 任丘 062552
  • 收稿日期:2009-06-29 修回日期:2009-11-15 出版日期:2010-10-10 发布日期:2010-10-10
  • 通讯作者: 杨帆yangfan103@sina.com. E-mail:yangfan103@sina.com.
  • 作者简介:杨帆（1984-），男，湖北荆州人，博士后，主要从事油气田开发地质研究.
  • 基金资助:

    中国地质大学（北京）海相储层演化与油气富集机理教育部重点实验室开放基金项目（编号：EEL2008-6）资助.

Distribution Characteristics of Fluid Pressure in Lixian Slope, Raoyang Subbasin and Its Impact on Hydrocarbon Accumulations

YANG Fan, XU Xin-He, LI Sheng-Li, ZHANG Feng   

  1. 1. China University of Geosciences (Beijing), Beijing 100083，China;
    2.School of Energy Resources,China University of Geoscience(Beijing),Beijing 100083, China;
    3. Evaluation Department of Huabei Oil Field Company, PetroChina, Renqiu 062552, China
  • Received:2009-06-29 Revised:2009-11-15 Online:2010-10-10 Published:2010-10-10

PDF (PC)

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摘要：

准确的地层压力预测不仅能规避钻探风险，还能指示油气的运移方向，为油气勘探提供依据。根据实测资料以及理论计算，将蠡县斜坡的流体压力划分为4种类型：正常型、单高型、双高型和一高一低型。蠡县斜坡以正常压力为主，但在烃源层和浅层也存在着异常压力。异常高压主要分布在斜坡内带的任西洼槽和肃宁洼槽附近，异常低压多在高阳断层及北段斜坡外带出现。蠡县斜坡异常高压的出现，多由于烃源岩的生烃、排烃作用形成，异常低压的产生则是由于构造的抬升剥蚀作用造成的。蠡县斜坡油气运聚以侧向运移为主，沿着鼻状构造带向斜坡外带运移成藏。

关键词: 蠡县斜坡, 流体压力, 压力类型, 油气成藏

Abstract:

Accurately predicting the pressure underground could not only decrease drilling risks, but also indicate the migration path of oil and gas. According to the measured data and theoretical calculation, fluid pressure in Lixian slope can be divided into 4 types:Normal type, single-high type, two-high type and single-high low type. It is dominated by normal pressure, but abnormal pressure exists in certain depth. High abnormal pressure mainly occurs around Renxi sub-sag and Suning sub-sag in inner belt of the slope, while low abnormal pressure exits around Gaoyang fault and north of the slope. High abnormal pressure appears in deep beds, especially in source beds, while normal pressure appears in upper layer and few low abnormal pressures show at shallow depth. The direction of hydrocarbon migration is mainly laterally. It migrates along the nose structure to outer belt of the slope and accumulates.

Key words: Lixian slope, Fluid pressure, Pressure type, Hydrocarbon accumulations.

中图分类号: 

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