CAJ | 학술논문

在研究中原油田卫42块油藏构造、储层物性特征、流体性质及开发特点的基础上，探讨了深层特低渗透油藏提高采收率、提高开发水平和经济效益的有效途径。利用室内实验结果，分析了氮气驱油和水驱油的特征以及对其采收率的影响，研究分析氮气驱技术和经济上的可行性，认为卫42块低渗油藏完全满足氮气驱的条件。在卫42块进行单井注氮矿场试验，结果周围对应的2口井产量增幅达53.0％。数值模拟预测，采收率可提高8.0％。
재연구중원유전위42괴유장구조、저층물성특정、류체성질급개발특점적기출상，탐토료심층특저삼투유장제고채수솔、제고개발수평화경제효익적유효도경。이용실내실험결과，분석료담기구유화수구유적특정이급대기채수솔적영향，연구분석담기구기술화경제상적가행성，인위위42괴저삼유장완전만족담기구적조건。재위42괴진행단정주담광장시험，결과주위대응적2구정산량증폭체53.0％。수치모의예측，채수솔가제고8.0％。
Based on the research of reservoir structure,its physical characteristics, its fluid properties and development characteristics in block Wei 42 of Dongpu depression in Zhongyuan oil field,effective ways are proposed for EOR of deeper reservoir with extremely low permeability and for the improvement of development level and benefits of the reservoir.The characteristis of nitrogen-gas flooding, water flooding and their effects on the oil recovery are analyzed by using the experimental results,technical and economic feasibilities of the nitrogen-gas flooding are discussed,it is considered that low permeability reservoir in block Wei 42 would completely meet the conditions of nitrogen-gas flooding.Production increases of 53% in two corresponding wells nearby are obtained during single-well nitrogen-gas flooding testing in the block. Eight percent increase of oil recovery is achieved by the prediction of numerical simulation.