桥口构造沙三段气藏特征及其控制因素

王生朗; 任来义; 王洪斌; 黄国平; 张虹

doi:10.11743/ogg20020219

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桥口构造沙三段气藏特征及其控制因素
CHARACTERISTICS OF GAS RESERVOIR AND ITS CONTROLLING FACTORS IN Es³OF QIAOKOU STRUCTURE
2002年23卷第2期页码：186-189
网络首发：2002-06-25，

纸质出版：2002
DOI： 10.11743/ogg20020219
稿件说明：

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王生朗, 任来义, 王洪斌, 等. 桥口构造沙三段气藏特征及其控制因素[J]. 石油与天然气地质, 2002,23(2):186-189. DOI： 10.11743/ogg20020219.

Wang Shenglang, Ren Laiyi, Wang Hongbin, et al. CHARACTERISTICS OF GAS RESERVOIR AND ITS CONTROLLING FACTORS IN Es³OF QIAOKOU STRUCTURE[J]. 2002, 23(2): 186-189. DOI: 10.11743/ogg20020219. DOI：

摘要

桥口构造沙三段气藏具有埋深大、含气井段长、储层物性差且纵横向变化大、气层产能低、压力不稳的特点。通过对岩性成分、结构、沉积相带、物性、盖层、构造、烃源岩演化等多方面控制因素的分析认为

在诸多的控制因素中

沉积相带是主控因素

重力流水道砂体及湖底扇中扇辫状水道不仅物性好

而且埋藏在生烃洼陷泥岩之中

利于捕获油气而富集成藏。因此

加强沉积相的精细研究

将地震资料与测井资料结合起来分析有利的沉积相带

进行储层预测

将是下步勘探工作的重点。

Abstract

Gas reservoir in Es

interval of Qiaokou structure is characterized by its great buried depth

long gas-bearing interval

poor physical property

great change longitudinally and transversally

low productivity of gas bearing strata and unstable pressure.It is believed

by analyzing structure of litho-composition

sedimentary facies belts

physical property

overburden

structure and hydrocarbon evolution

that sedimentary facies is the main factor among several controlling factors

gravitational flow channel sandbody and physical property of fan-braided channel in the sublacustrine fan is not good but also buried in mudstone of hydrocarbon genetic depression which is favorable for hydrocarbon trapping and accumulating to reservoir.Therefore

it is necessary to stress the importance of next step exploration by strengthening a carefully study of sedimentary facies

analyzing those favorable sedimentary facies by combining seismic data with data of well-logging

predicating reservoir.