低渗透油藏压敏效应与注水时机研究

doi:10.7623/syxb200904017

石油学报 ›› 2009, Vol. 30 ›› Issue (4): 574-577,582.DOI: 10.7623/syxb200904017

低渗透油藏压敏效应与注水时机研究

谢晓庆¹, 姜汉桥¹, 王全柱², 刘同敬¹, 张卫³

1. 中国石油大学石油工程教育部重点实验室, 北京, 102249;
2. 中国石化胜利油田河口采油厂, 山东东营, 257200;
3. 中国华油集团公司, 北京, 100101

收稿日期:2008-10-07 修回日期:2008-12-03 出版日期:2009-07-25 发布日期:2010-05-21
作者简介:谢晓庆,男,1982年4月生,2004年毕业于长江大学,现为中国石油大学(北京)博士研究生,主要从事油气田开发理论与系统工程方面的研究.E-mail:xiexiaoqing1205@163.com
基金资助:
国家"十五"重点科技攻关项目(2003BA613-07-05);中国石油中青年创新基金资助项目(04E7029)联合资助.

Discussion on pressure-sensitivity effect and water-flooding timing in low-permeability reservoir

XIE Xiaoqing¹, JIANG Hanqiao¹, WANG Quanzhu², LIU Tongjing¹, ZHANG Wei³

1. Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249, China;
2. Hekou Oil Production Plant, Sinopec Shengli Oilfield Company, Dongying 257200, China;
3. China Huayou Group Corporation, Beijing 100101, China

Received:2008-10-07 Revised:2008-12-03 Online:2009-07-25 Published:2010-05-21

摘要/Abstract

摘要： 为了研究低渗透油藏合理的超前注水时机,利用物理模拟实验研究压敏效应对低渗透油藏物性的影响,得到了低渗透油藏储层压力与渗透率呈指数变化的关系,进而运用油藏工程方法及理论推导得到了储层压力与产油量、产水量、注水量等生产指标的解析关系。依据油藏物质守恒原理,结合经济评价,提出了一种考虑压敏效应计算合理注水时机的方法,并编制了相应的软件。对江苏油田某区块进行了实际应用,得到了较好的效果。超前注水可以减少压敏效应对低渗透油藏开发的不利影响,合理的超前注水时机一般在1年以内,压力水平应该保持在1.05～1.2。

关键词: 低渗透油藏, 压敏效应, 超前注水, 注水时机, 计算方法

Abstract: The physical simulation experiments were made to research the reasonable water-flooding timing in the low-permeability reservoir.The influence of pressure-sensitivity effect on the physical property of the low-permeability reservoir was analyzed.The exponential relation of formation pressure with permeability of reservoir was induced.The analytic relationship between formation pressure and production parameters such as crude output,water production and water injection was obtained using reservoir engineering and rational deduction.An approach for calculating the reasonable water-flooding timing in consideration of the pressure-sensitivity effect was proposed on the basis of reservoir material balance principle and economic assessment.Relative software was compiled and applied to one block of Jiangsu Oilfield.The good effectiveness has been obtained.The result showed that the advanced water-flooding process could decrease the harmful impaction of pressure-sensitivity effect in the low-permeability reservoirs.The reasonable advanced water-flooding timing is always less than one year,and the pressure level should be maintained from 1.05 to 1.2.

Key words: low-permeability reservoir, pressure-sensitivity effect, advanced water-flooding, water-flooding timing, calculation

中图分类号:

TE357.6

谢晓庆, 姜汉桥, 王全柱, 刘同敬, 张卫. 低渗透油藏压敏效应与注水时机研究[J]. 石油学报, 2009, 30(4): 574-577,582.

XIE Xiaoqing, JIANG Hanqiao, WANG Quanzhu, LIU Tongjing, ZHANG Wei. Discussion on pressure-sensitivity effect and water-flooding timing in low-permeability reservoir[J]. Editorial office of ACTA PETROLEI SINICA, 2009, 30(4): 574-577,582.

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低渗透油藏压敏效应与注水时机研究

Discussion on pressure-sensitivity effect and water-flooding timing in low-permeability reservoir

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