贝尔凹陷南屯组湖底扇特征及有利储集相带

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (4): 361-364.

贝尔凹陷南屯组湖底扇特征及有利储集相带

徐显生¹, 王建新², 杨婷³, 王文第⁴, 张雷⁵, 王哲³

1.中国地质大学能源学院,北京 100083;
2.中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依 834000;
3.中国石油大学资源与信息学院,北京 102249;
4.中国石油青海油田分公司勘探开发研究院,甘肃敦煌 736202;
5.中国石油煤层气有限责任公司,北京 100013

收稿日期:2010-03-24 修回日期:2010-03-24 发布日期:2020-10-19
作者简介:徐显生(1975-),男,吉林梅河口人,在读博士研究生,石油地质,(Tel)15810475670(E-mail)zlgeo@sina.com.
基金资助:
国家973项目(2006CB701400)

Characteristics and Favorable Reservoir Facies Belt of Sublacutrine Fan of Nantun Formation in Beier Sag, Hailaer Basin

XU Xian-sheng¹, WANG Jing-xin², YANG Ting³, WANG Wen-di⁴, ZHANG Lei⁵, WANG Zhe³

1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
3. Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249, China;
4. Research Institute of Exploration and Development, Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736202, China;
5. CBM, PetroChina, Beijing 100013, China

Received:2010-03-24 Revised:2010-03-24 Published:2020-10-19

摘要/Abstract

摘要： 根据岩心、测井和粒度分析等资料,将海拉尔盆地贝尔凹陷西北部下白垩统南屯组湖底扇进一步划分为内扇、中扇和外扇3 个亚相以及6 个微相。由于紧邻湖底扇的半深湖-深湖相泥岩既是烃源岩,又是良好的盖层,所以湖底扇中砾岩及砂岩易形成岩性圈闭,其中以中扇辫状沟道微相砂体发育带储集条件最佳,属中孔中低渗储集层,为勘探的有利相带。

关键词: 贝尔凹陷, 南屯组, 湖底扇, 沉积特征, 沉积模式, 有利储集相带

Abstract: The Nantun formation of Lower Cretaceous in northwestern Beier sag in Harlaer basin develops typical sublacutrine fan deposit. According to the core, well logs and grain-size analysis data, the sublacutrine fan located in the back slope and near paleohigh can be divided into three subfacies of inner, middle and outer fans and six microfacies in this region. The great height difference of geography formed by the regulatory faulting activity in the back slope allows this area to develop large scale alluvial fan-fan delta-sublacutrine fan deposit system by the way from provenance to lacustrine basin. The mudstone in the semi-deep lacustrine-deep lacustrine near the sublacutrine fan is not only source rock, but also preferable cap rock. So the conglomerate and sandstone in the fan is favorable to form lithologic trap. The sand-body developing belt of braided channel microfacies in middle fan is the mid-porosity and mid-low permeability reservoir facies belt and favorable for petroleum exploration.

Key words: Beier sag, Nantun formation, sublacutrine fan, sedimentary character, depositional model, favorable reservoir facies

中图分类号:

TE112.221

徐显生, 王建新, 杨婷, 王文第, 张雷, 王哲. 贝尔凹陷南屯组湖底扇特征及有利储集相带[J]. 新疆石油地质, 2010, 31(4): 361-364.

XU Xian-sheng, WANG Jing-xin, YANG Ting, WANG Wen-di, ZHANG Lei, WANG Zhe. Characteristics and Favorable Reservoir Facies Belt of Sublacutrine Fan of Nantun Formation in Beier Sag, Hailaer Basin[J]. Xinjiang Petroleum Geology, 2010, 31(4): 361-364.

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