鄂尔多斯盆地韩渠-张天渠地区长2油层沉积相及储层特征

J4 ›› 2010, Vol. 40 ›› Issue (1): 38-47.

鄂尔多斯盆地韩渠-张天渠地区长2油层沉积相及储层特征

杨县超^1|2|李旦²|康立明²|卿颖³|任战利¹

1．西北大学大陆动力学国家重点实验室| 西安 710069;2．陕西延长石油（集团）有限责任公司|西安 710065;3．冀东油田勘探开发研究院|河北唐山 063004

收稿日期:2009-04-24 出版日期:2010-01-26 发布日期:2010-01-26
通讯作者: 任战利（1961-），男，陕西长安人，研究员，博士生导师，博士，主要从事盆地构造热演化史与油气地质综合研究，Tel:029-88598367 E-mail:renzhanl@nwu.edu.cn
作者简介:杨县超(1961-)|男|陕西耀县人|博士研究生|主要从事油田勘探开发和石油地质综合研究|E-mail:yangxianchao1962@163.com
基金资助:
“十一 ·五”国家科技支撑计划（2007BAB1701）；国家“973”项目（2003CB214605）

Reservoir Feature and Sedimentary Facies of Chang 2 Bed in Hanqu-Zhangtianqu Area in Ordos Basin

1.State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069|China;2.Yanchang Petroleum Group Limited Co. of Shaanxi, Xi’an 710065|China;3.Research Institute for Exploration and Development,Jidong Oilfield Company, PeteroChina Tangshan|Hebei 063004|China

Received:2009-04-24 Online:2010-01-26 Published:2010-01-26

摘要/Abstract

摘要：

利用区域地质、测井、砂岩薄片、铸体薄片、扫描电镜、X衍射分析等多种方法对鄂尔多斯盆地韩渠-张天渠地区长2油层沉积相和储层特征进行了综合分析研究。结果表明：该区长2时期发育三角洲平原沉积体系，广泛发育的分流河道砂体储集层为油气的聚集提供了有利场所，分流河道储层空间以原生粒间孔为主，孔隙度一般为15 %左右，渗透率一般为5×10^-3μm² 左右，属低孔低渗型储层。本区构造运动微弱，长2为构造-岩性油藏，分流河道砂体与长1沉积的泥岩盖层配置以及上倾方向分流间洼地的岩性遮挡是油气在长2 砂体中富集的主要控制因素。

关键词: 鄂尔多斯盆地；韩渠-张天渠地区；沉积相；储集层

Abstract:

According to the comprehensive analysis of the regional geology, logging, sandstone thin section, casting lamella, scan electronmicroscope,X-ray diffractions and other means, the sedimentary facies and reservoir features of Chang 2 Formation in Hanqu-Zhangtianqu region of Ordos basin have been studied.The results show that the sand bodies of the Chang 2 oil reservoir are mainly deltaic plain deposits,and the distributary channel sand bodies in Chang 2 Formation are the advantageous places for Petroleum accumulation of this area. The main porosity type of reservoir is primary interparticle pore. The porosity and permeability of reservoir are about 15 % and 5×10^-3μm² separately, which belong to low porosity and low permeability reservoir. Located in the flat Shanbei slope with weak tectonic activities,Chang 2 oil pool belongs to the tectonic-lithologic pool. Channel sand bodies,lithologic lateral bareier and the shale cap rock of Chang 1 Group are the main dominant factors for the petroleum accumulation in Chang 2 sand bodies.

Key words: Ordos basin；Hanqu-zhangtianqu area；sedimentary facies；reservoirs

中图分类号:

P618.13

杨县超, 李旦, 康立明, 卿颖, 任战利. 鄂尔多斯盆地韩渠-张天渠地区长2油层沉积相及储层特征[J]. J4, 2010, 40(1): 38-47.

YANG Xian-chao, LI Dan, KANG Li-ming, QING Ying, REN Zhan-li. Reservoir Feature and Sedimentary Facies of Chang 2 Bed in Hanqu-Zhangtianqu Area in Ordos Basin[J]. J4, 2010, 40(1): 38-47.

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