第39参第2期 2017年3月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)02012505
DOI:10.13639/j.odpt.2017.02.001
Vol. 39 No. 2 Mar.2017
致密油储层岩石孔喉比与渗透率、孔隙度的关系
李伟峰12刘云于小龙”魏浩光4
1.延长油田股份有限公司勘探开发研完究中心；2.西北大学地质系；3.延长石沟集团研究院钻采所；4.中国石化石油工程技术研究院
引用格式：李伟峰，刘云，于小龙，魏浩光.致密油储层岩石孔噗比与渗造率、孔陈度的关系[J】.石油钻采工艺，2017,39(2):125-129
摘要：孔比是致密油储层岩石最重要的微观物性之一，对储层的刺余油分布与驱替压力影响很大。利用复合毛细管模型，考虑储层岩石的孔喉比、配位数、孔隙半径和噗道半径等孔结构参数，建立了致密油储层岩石的赋观物性与宏观物性孔隙度、渗造率之间的理论关系式。并用44组板桥地区长6油层组致密油储层券心的恒速压汞实验数据遗行拟合。结果表明：致
组渗造率接近、孔隙度差并较大的岩心驱油实验，证实@"S/2值大的致密砂岩，水驱油阻力大
关键词：致密油；孔喉比；孔隙度；渗透率；驱油阻力；恒速压汞实验
中图分类号：TE311
文献标识码：A
Relationship of pore-throat ratio vs.permeability and porosity of tight oil reservoir rock
LIWeifeng",LIUYun'YUXiong,WEIHaguang
1. Exploration and Developmenr Research Cenfer, Yanchang Oil Field Co., Ltd., Yan'an 716000, Shaartxi, China
2. Deparfment of Geology, Norrhwest University, Xf'an 710069, Shaanxi, China;
3. Drilling and Prodaction Departmenf of Research Insritarte, Shaaxi Yanchang Perolerm (Group) Co., Lrd, Xr'an 710075, Shaanxi, China,
4. Research Institufe of Petrolem Engineering, SINOPEC, Beijing 100101, China
Citation: LI Weifeng, LIU Yun, YU Xiaolong, WEI Haoguang. Relationship of pore-throat ratio vs. permeability and porosity of tight oil reservoir rock [ J ] . Oil Drilling & Production Technology, 2017, 39(2): 125-129.
Abstract: Pore-throat ratio is one of the most important microscopic physical properties of tight oil reservoir rocks and it has great effect on the remaining oil distribution and displacement pressure of reservoirs. After pore structure parameters of reservoir rocks were analyzed, such as pore-throat ratio, coordinate number, pore radius and throat radius, the theoretical relation between microscopic physi-cal properties and macroscopic physical properties (porosity and permeability) of tight oil reservoir rocks was established by using the composite capillary model. Then, constant-rate mercury injection experiment data of 44 suites of cores taken from Chang 6 oil formation in Banqiao area were used for fitting. It is indicated that the porosity () and permeability (k) of tight oil reservoir rocks are controlled sedaase placement experiment was performed on two suites of cores whose permeabilities are close and porosities are more different. It is verified s sseee
Key words: tight oil; pore-throat ratio; porosity; permeability; oil displacement resistance; constant-rate mercury injection experi-ment
基金项目：国家科技重大专项“高压低渗油气藏固并完井技术"（编号：2016ZX05021-005)。
第一作者：李伟峰（1983-)，毕业于西安石油大季油气田开发工程专业，西北大学在职博士研究生，主要研究方向为复杂结神并钻完井工
艺及储层地质研究，工程师。通试地址：(716000)陕西省建安市枣图路中段。E-mail；liweifeng0913@126.com
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