鄂尔多斯盆地长7油层组有效储层物性下限的确定

鄂尔多斯盆地长7油层组有效储层物性下限的确定

付金华^1,2 罗安湘^1,2 张妮妮^3,4 邓秀芹^1,2 吕剑文¹ 吴康军^3,4 王克¹ 刘洛夫^3,4

1 中国石油长庆油田公司；2 低渗透油气田勘探开发国家工程实验室；3 中国石油大学油气资源与探测国家重点实验室；4 中国石油大学盆地与油藏研究中心

出版日期:2014-12-15 发布日期:2014-12-15
作者简介:付金华（1962-），男，湖北黄冈人，博士，2004 年毕业于西北大学，教授级高级工程师，主要从事石油天然气地质综合研究及油气勘探管理工作。地址：陕西省西安市未央路151 号中国石油长庆油田公司，邮政编码：710018。 E-mail: fjh-cq@petrochina.com.cn
基金资助:
国家自然科学基金^“鄂尔多斯盆地三叠系延长组致密油含油边界识别研究^”（41372143）；国家重点基础研究发展计划（973 计划） ^“中国陆相致密油（页岩油）形成机理与富集规律^”（2014CB239003）。

Determine Lower Limits of Physical Properties of Effective Reservoirs in Chang 7 Oil Formation in Ordos Basin

Fu Jinhua^1,2, Luo Anxiang^1,2, Zhang Nini^3,4, Deng Xiuqin^1,2, Lv Jianwen¹, Wu Kangjun^3,4, Wang Ke¹, Liu Luofu^3,4

1 PetroChina Changqing Oil field Company; 2 State Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields; 3 State Key Laboratory for Oil and Gas Resources and Exploration, China University of Petroleum ; 4 Basin and Reservoir Study Center, China University of Petroleum

Online:2014-12-15 Published:2014-12-15

摘要/Abstract

摘要： 鄂尔多斯盆地长7 油层组在湖盆中心大面积连续分布，孔隙度主要分布在4%～12%，渗透率一般小于 0.3mD，属于典型的致密砂岩储层。而划分致密油含油边界关键技术之一是确定有效储层的物性下限。在测井解释、试油数据、储层物性分析等地质资料的基础上，根据统计学原理和超低渗透油藏流体渗流机理，分别采用经验统计法、物性试油法、孔隙度—渗透率交会法、油气驱替模拟实验法以及最小流动孔喉半径法5 种方法，对该区有效储层物性下限展开研究。经过研究和综合对比，确定了长7 油层组有效储层物性下限值为孔隙度5.7%、渗透率0.0276mD。

Abstract: Chang 7 oil formation in Ordos Basin is distributed in the center of lake basin in a large area. The porosity ranges mainly from 4 percent to 12 percent while the permeability is less than 0.3mD. It is a typical tight sandstone reservoir. Determination of the lower limits of effective reservoir is one key technologies to divide the oil-bearing boundary of tight rock. Based on the geological data, such as logging interpretation, oil testing data and analysis of physical properties of reservoirs and in accordance with the statistical principles and super-low permeable oil reservoir fl uid fi ltration mechanism, fi ve methods are adopted to the lower limits of physical properties of the effective reservoirs in this block, such as experience statistical method, physical oil testing method, porosity-permeability intersection method, oil and gas displacement simulation method and minimum fl owing pore throat radius method. The lower limit of physical properties of effective reservoir in Chang 7 oil formation is determined on the basis of the research and comparison. The porosity and permeability are 5.7 percent and 0.0276mD.

付金华,罗安湘,张妮妮,邓秀芹,吕剑文,吴康军,王克,刘洛夫. 鄂尔多斯盆地长7油层组有效储层物性下限的确定[J]. .

Fu Jinhua,Luo Anxiang,Zhang Nini,Deng Xiuqin,Lv Jianwen,Wu Kangjun,Wang Ke and Liu Luofu. Determine Lower Limits of Physical Properties of Effective Reservoirs in Chang 7 Oil Formation in Ordos Basin[J]. .