塔河油田奥陶系岩溶作用模式及控制因素

KARSTIFICATION MODELS OF THE ORDOVICIAN CARBONATES AND THEIR INFLUETIAL FACTORS IN THE TAHE OILFIELD, THE TARIM BASIN

周江羽 吕海涛 林忠民 吴冲龙

Zhou Jiangyu Lü Haitao Lin Zhongmin Wu Chonglong

中国地质大学(武汉)构造与油气资源教育部重点实验室, 武汉, 430074 2. 中国石化西北分公司, 勘探开发规划设计研究院, 乌鲁木齐, 830001

Key Laboratory of Tectonics and Petroleum Resources(China University of Geosciences), Ministry of Education, Wuhan, Hubei 430074, China 2. Design and Planning Institute of Northwest Petroleum Bureau, SINOPEC, Urumqi, Xinjiang 830001, China

碳酸盐岩储层具有异常复杂的非均质性,碳酸盐岩岩溶作用研究是当今储层沉积学和储层地球化学研究的重要前缘领域。塔河油田所处的阿克库勒凸起是在前震旦系变质岩基底上长期发育的一个古隆起,经历了加里东期和海西期多期次的构造抬升和海平面变化影响,并受到后期构造运动的叠加改造,发育了一套寒武—奥陶系碳酸盐岩岩溶—缝洞型储层。结合塔河油田岩溶作用的基本特点和勘探实践,建立了奥陶系碳酸盐岩储层岩溶作用的3种基本模式,并分析了岩溶发育的主要控制因素。

Karstification research of a complicated anisotrophic carbonate reservoir is presently an important leading field for reservoir sedimenology and geochemistry.Akekule convex included Tahe Oilfield is a long-term developed paleo-uplift based on the pre-Sinian metamorphic basement,which affected by multi-period of Caledonian and Hercynian tectonic uplift and sea-level changes,and superposing reformed by late tectonic movement.A set of Cambrian-Ordovician carbonate karst-fracture-hole reservoirs were developed in Akekule convex.Combined with the karstification and exploration in Tahe Oilfield,three karstification models were established in the area and the key controling factors of karst development were analyzed.

中国石化重点科技攻关项目(P04026)

https://doi.org/10.11781/sysydz200906547