新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (5): 550-553.

• 油气勘探 • 上一篇    下一篇

巴楚地区巴楚组生屑灰岩段储集层特征与油气成藏

旷理雄1, 郭建华1, 郭永康2, 王明艳1, 张洪安3   

  1. 1.中南大学 地学与环境工程学院,长沙 410083;
    2.中国石油 长庆油田分公司 采油四厂,西安 710016;
    3.中国石化 西北分公司 研究院,乌鲁木齐 830011
  • 收稿日期:2009-02-25 修回日期:2009-04-27 出版日期:2009-10-01 发布日期:2020-09-30
  • 作者简介:旷理雄（1965-）,男,湖南武岗人,副教授,博士,石油地质, （Tel）13027480788（E-mail）kuanglixiong@163.com.
  • 基金资助:
    国家自然科学基金项目,塔里木盆地盆山耦合的宽频带地震观测和数值模拟（40874048）资助

Reservoir Characteristics and Hydrocarbon Accumulation of Bioclastic Limestone Section of Bachu Formation in Bachu Area, Tarim Basin

KUANG Li-xiong1, GUO Jian-hua1, GUO Yong-kang2, WANG Ming-yan1, ZHANG Hong-an3   

  1. 1.School of Geosciences and Environmental Engineering, Central South University, Changsha, Hunan 410083, China;
    2.No.4 Production Plant, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710016, China;
    3.Research Institute, Northwest Branch, Sinopec, Urumqi,Xinjiang 830011, China
  • Received:2009-02-25 Revised:2009-04-27 Online:2009-10-01 Published:2020-09-30

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摘要： 研究了塔里木盆地巴楚地区石炭系巴楚组生屑灰岩段地层层序,在此基础上,利用岩心资料,研究了生屑灰岩段储集层特征及其分布;应用流体包裹体分析等技术和方法,研究了油气注入成藏史与成藏主控因素。研究区内生屑灰岩段海侵体系域储集层主要岩石类型为颗粒灰岩和白云岩,储集空间类型为孔隙型、孔隙-裂缝型和裂缝型;影响储集层物性的主要因素为沉积作用与成岩作用以及构造作用;最有利的储集层分布在巴楚西部巴什托麦 6—麦 4井区一带及其周缘;油气藏类型主要为背斜油气藏,其次为裂缝油气藏,至少发生了 2 次油气注入成藏（海西运动晚期与喜马拉雅运动晚期）;提出储集层质量、构造演化、断裂和圈闭是控制油气成藏的重要因素。

关键词: 塔里木盆地, 巴楚隆起, 石炭系, 碳酸盐岩, 储集层, 油气成藏, 主控因素

Abstract: This paper studies the stratigraphic sequence of bioclastic limestone section of Bachu formation of Carboniferous in Bachu area of Tarim basin, based on which studies the bioclastic limestone reservoir characteristics and its distribution with core analysis data. Also, using fluid-inclusion analysis technique, this paper studies the hydrocarbon charging and accumulation history and its main controlling factors in this area. It is shown that this reservoir is characterized by grainstone and dolomite in lithology, pore, pore-fracture and fracture in reservoir space type, as well as main factors affecting the reservoir petrophysical property such as sedimentation, diagenesis and tectonic process. The most favorable reservoir could be distributed along and nearby Wellblock Mai-6 to Mai-4 in western Bachu area. The reservoir type is anticlinal reservoir and fractured reservoir, the former is dominant. There exist at least two periods of hydrocarbon charging and accumulation (Late Hercynian and Late Himalayan movements). The reservoir quality, tectonic evolution, fault and trap are the important factors controlling the hydrocarbon accumulation in this area.

Key words: Tarim basin, Buchu uplift, Carboniferous, carbonate rock, reservoir, hydrocarbon accumulation, main controlling factor

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