[1]王玉华,毛凤军,王芝尧,等.Termit盆地构造特征及其对成藏的控制作用[J].复杂油气藏,2018,(04):12.[doi:10.16181/j.cnki.fzyqc.2018.04.003]
　WANG Yuhua,MAO Fengjun,WANG Zhiyao,et al.Tectonic characteristics and control effect of hydrocarbon accumulation in Termit Basin[J].Complex Hydrocarbon Reservoirs,2018,(04):12.[doi:10.16181/j.cnki.fzyqc.2018.04.003]
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Termit盆地构造特征及其对成藏的控制作用()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2018年04期
页码:
12
栏目:
油气勘探
出版日期:
2018-12-25

文章信息/Info

Title:
Tectonic characteristics and control effect of hydrocarbon accumulation in Termit Basin
作者:
王玉华1; 毛凤军1; 王芝尧2; 刘 邦1; 吕明胜1; 3; 郑凤云1; 陈忠民1
1.中国石油勘探开发研究院 北京 100083; 2.中国石油大港油田公司 天津 300280; 3.中国石油天然气勘探开发公司 北京 100034
Author(s):
WANG Yuhua1;  MAO Fengjun1;  WANG Zhiyao2;  LIU Bang1; LYU Mingsheng1; 3; ZHENG Fengyun1;  CHEN Zhongmin1
1. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China; 2. Petrochina Dagang Oilfield Company, Tianjin 300280, China; 3. China National Oil and Gas Exploration and Development Corporation, Beijing 100034, China
关键词:
构造演化 构造特征 油气成藏 控制作用 Termit盆地 西非裂谷系
Keywords:
tectonic evolution;  tectonic characteristics;  oil and gas accumulation;  control action;  Termit Basin;  West African Rift System
分类号:
TE121
DOI:
10.16181/j.cnki.fzyqc.2018.04.003
文献标志码:
A
摘要:
Termit盆地属于西非裂谷系,是发育于前寒武系-侏罗系基底之上的中、新生代裂谷盆地,其构造演化分为白垩纪的裂谷Ⅰ幕及其后的拗陷阶段、古近纪-新近纪的裂谷Ⅱ幕及其后的拗陷阶段。上白垩统大套海相泥岩中发育烃源岩,古近纪早期沉积的湖相砂岩建造储集层、古近纪晚期沉积的泥岩构成区域盖层,从而形成了跨世代的成藏组合。Termit盆地构造对成藏控制作用明显,两期裂谷叠置的构造演化特征决定了上部成藏组合是最主要的成藏组合。凹陷的发育程度决定了油气分布的富集程度,古构造背景下的变换型构造带是油气富集带。断裂的空间展布规律控制了油气富集带分布的具体位置及含油层系的空间展布规律。
Abstract:
Termit Basin belongs to the West African Rift System, and it is a Mesozoic-Cenozoic rift basin developed on the Precambrian-Jurassic basement. The tectonic evolution can be divided into the cretaceous rift I, the subsequent depression phase of the rift I Paleogene-neogene rift II, and the subsequent depression phase of the rift II. Hydrocarbon source rocks were developed as the large-scale marine mudstone intrusion of late cretaceous. Reservoir beds were developed due to lacustrine sand-mudstone alternating beds deposited in early Paleogene. Caprocks were developed because of low velocity mudstone beds deposited in late Paleogene. It was formed a generational upper accumulation combination. The structure has an obvious control effect on the hydrocarbon accumulation in Termit Basin. The characteristics of superimpose of two rift tectonic evolution determines that the upper accumulation combination is the best. The development degree of sag determines the distribution of oil and gas enrichment degree. The transformation type structural belt under the background of ancient tectonic is oil and gas enrichment zone. The spatial distribution regularity of fracture decided by regional stress field distribution controls the location of oil and gas enrichment zone and spatial distribution regularity of oil-bearing series in the basin.

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备注/Memo

备注/Memo:
收稿日期:2018-07-07; 改回日期:2018-10-11。第一
作者简介:王玉华(1969-),高级工程师,学士,从事构造解释、勘探部署及开发地震研究工作。E-mail: wangyhyhyh@petrochina.com.cn。
基金项目::中国石油天然气集团公司科学研究与技术开发项目(2016D-4302); 国家油气重大专项项目29(2016ZX05029005)。
更新日期/Last Update: 2018-11-25