摘要
油水井酸化措施的决策过程是一个多因素共同作用的过程,选井、选层在一定程度上决定着酸化措施效果的好坏。以鄯善油田三间房组储层油水井酸化选井为例,选取渗透率、孔隙度、表皮系数、注水层厚度、连通系数、实注系数、吸水指数减少幅度等7个参数,运用熵权逼近理想排序法(TOPSIS法)进行了油水井酸化选层选井研究。研究结果表明,渗透率、注水层厚度、连通系数对酸化效果影响较大,在影响酸化效果中起主要作用。TOPSIS法评价结果与模糊物元法基本一致,但是其计算简便、权重的确定受主观因素影响小,为储层酸化效果的综合评价提供了一种新的方法、途径。
Taking the selection of wells in acidification of Sanjianfang reservoir in Shanshan oilfield as an example,and seven parameters such as permeability,porosity,skin factor,reservoir thickness,connecting factor and the range of water infectivity index have been taken as main indexes to be considered.Acidification has been evaluated comprehensively based on the method of TOPSIS.The results indicate that permeability,reservoir thickness and connecting factor have been more important influences on acidizing stimulation.And then,TOPSIS has been a new way for the comprehensive evaluation of acidification,which is a simple mathematic model with easy operation,but with determining the weighing values affected by the subjective factors small,and the evaluation results have been in conformity with the fuzziness unit fine evaluation method.
作者
卢学飞
王建
董凤娟
杨明磊
曹原
LU Xue-fei;WANG Jian;DONG Feng-juan;YANG Ming-Lei;CAO Yuan(X i’an Shiyou University,Xi’an,Shaanxi,710065,China;Research Institute of Exploration and Development,Shengli Oilfield Company,Sinopec,Dongying,Shandong,257015,China;Shaanxi Key Laboratory of Advanced Stimulation Technology for Oil&Gas Reservoirs,Xi’an,Shaanxi,710065,China;Daqing Downhole Services Company,Daqing,Heilongjiang,163000,China;China Petroleum Logging CO.LTD,Xi'an,Shaanxi,710077,China)
出处
《地下水》
2019年第6期85-88,共4页
Ground water
基金
国家自然科学基金青年项目:“致密砂岩油藏全尺度孔喉分布特征及其微尺度非均质性对流体赋存状态的影响研究”(41802166)
“十三五”国家重大科技专项:“复杂断块油田提高采收率技术”(2016ZX05011-002)
陕西省自然科学基础研究计划青年项目:“致密砂岩油藏微尺度孔喉非均质性定量表征及渗流机理研究”(2017JQ4005)联合资助
关键词
酸化
选井
TOPSIS法
综合评价
acidification
selecting a well
topsis
comprehensive evaluation
