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准噶尔盆地南缘西部地层异常高压基本地质特征
石油实验地质
2001年 23卷 第1期
阅读：138
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Title
BASIC GEOLOGIC CHARACTERS OF THE ABNORMAL FORMATION OVERPRESSURE IN THE WESTERN PART OF SOUTHERN FRINGE OF JUNGGAR BASIN
作者
李忠权
陈更生
郭冀义
迟元林
赵杰
朱德丰
刘杰
艾兴波
Authors
Li Zhongquan
Chen Gengsheng
Guo Jiyi
Chi Yuanlin
Zhao Jie
Zhu Defeng
Liu Jie
Ai Xingbo
单位
北京大学地质系, 北京 100871
2. 西南油气田分公司, 四川, 成都 610051
3. 大庆油田有限责任公司, 黑龙江, 大庆 163453
Organization
Department of Geology, Peking University, Beijing 100871,China
2. Southwest Oil and Gas Field Branch Company, Chendu 610051, China
3. Daqing Oil Field Limited Liability Company, Daqing 163453, China
摘要
准噶尔盆地南缘西部地层异常高压主要分布于北天山山前褶皱带的第二、第三排构造带上,具明显区域带状分布特征.根据钻井资料揭示,异常高压带明显具有"层控、时控"之特点,表现为地层异常高压顶界深度受第三系安集海河组地层所控制,其三维空间形态呈不规则箱体状,显示了压力封存箱的特性.其成因类型属沉积、构造叠合作用的"复成因型"异常高压带.
Abstract
The abnormal formation overpressure in the western part of southern fringe of Junggar Basin mainly existed in the secound and third row of structural zones in northern Tianshan piedmont fold zones,and were characterized by regional zonal distribution.According to drilling data revealed,formation overpressure were characterized by "strata-control and time-control",which showed that the depth of the top surface of abnormal overpressure was controlled by Anjihaihe formation (E2+3),and its 3-D shape was a irregular box,which has the character of overpressured compartment.And its forming mechanism is "polygenetic",which was formed by superimposing of sedimention and tectonic.
Keywords:
Junggar Basin;
formation overpressure;
overpressured compartment;
DOI
https://doi.org/10.11781/sysydz200101047
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