第39参第3期 2017年5月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)03026706
DOI:10.13639/j.odpt.2017.03.002
层状厚层油藏水驱效率预测模型
张瑾球吴向红普剑利杨轩宇
中国石沟勘探开发研究院
Vol. 39 No. 3 May 2017
弓用格式：张瑾琳，吴向红，普剑利，杨轩宇，层状厚层油板水驱效率预洲模型（J」-石油钻采工艺，393)：267-270
摘要：层状厚层油藏在织向上通常表现出非均质性强、油层厚、储层物性差并大等特征。水驱开发厚层油藏会受到非均质
计算验证了本文模型的可靠性和实用性；通过敏感性分析认为，渗造率变异系数和流度比越大，原油驱替效率降低，遗成水驱开发效差。对于水驱开发层状厚层油巅，应加强储层织向非均质性认识，完善注采并网，增大驱替效率，从而提高厚层油藏水驱采收率。
关键词：水驱开发；厚层油藏；纵向非均质性；层内审流；驱替效率；拟相对渗透率函数
中图分类号：TE341
文献标识码：A
Apredictionmodelofwaterfloodingefficiencyforlayeredthickreservoir
ZHANG Jinlin, WU Xianghong, JIN Jianli, YANG Xuanyu
CNPC Research Irstitufe of Exploration & Development, Bejing 100083, Chind
Citation: ZHANG Jinlin, WU Xianghong, JIN Jianli, YANG Yuanyu. A prediction model of water flooding efficiency for layered thick reservoir [J] . Oil Drilling &Production Technology, 2017, 39(3): 267-270.
Abstraet: The thick oil reservoir usually featured with strong heterogeneity, thick oil layer and large difference in reservoir physi-eesaeoee lowering oil recovery etc. So, prediction of water flooding efficiency is the key to develop the thick reservoir. Considering the fluid channeling and heterogeneity and introducing pseudo relative permeability function, and combined with Weldge-Craig water flooding theory, a method for calculating water flooding efficiency in thick oil reservoir was established. The reliability and practicability of the model were verified by the case calculation at site. Sensitivity analysis indicated that the larger the permeability variation coefficient and mobility ratio, the lower the crude oil displacement efficiency, which causes the poor development effect by water flooding. As for the water flooding development of layered thick reservoir, it is necessary to strengthen the understanding of reservoir heterogeneity vertically, perfect the injection and production well pattem, and increase the displacement efficiency, so as to improve water flooding recovery ratio of thick reservoit
eaesaa permeability function
厚层油藏一般在纵向上具有厚度大、非均质性
强等特点，注水开发过程中，受重力分异作用导致注
人水下沉，水驱开发厚层油藏受到纵向渗透率差异储层韵律及重力等因系影响，因此准确预测厚层油
基金项目：中国石油天然气集团公司课题“乍得厚油层岩性砂岩油赢注水开发技术”（编号：2016D-4402）
第一作者：张瑾琳(1989-）,在块博士研究生，主要从事油藏工程和渗流力学方向的研究。通试地址：(100083)北京市海淀区学院路20号。
E-mail; zhangjinlin@petrochina.com.cr
万方数据