摘要
珠江口盆地文昌区珠江组一段低阻、低渗油组现阶段电阻率下限认识和开发生产动态存在矛盾,制约着后续开发调整。为解决该问题,利用钻、测井、分析化验及生产动态资料,分析文昌B油田ZJ1-2U油组电阻率下限的可靠性,通过对比开发生产动态、基础资料、油藏模式、油田油柱高度等,认为现阶段电阻率下限从1.1Ω·m降至1.0Ω·m后可准确反映“双低”油组的开发现状及油藏模式。电阻率下限降至1.0Ω·m后,ZJ1-2U油组将为统一的油藏系统,目前生产现状和油藏模式吻合度较高,解决油柱高度矛盾、基础资料对比矛盾等,同时电阻率下限降低后下部“含油水层”存在较大储量及开发潜力。依据该认识,提出3项对策落实1.0Ω·m电阻率下限,落实后将释放大规模低阻低渗油层的储量潜力,为文昌油田的储量接替作出一定的贡献。
There are contradictions in the understanding of the low limit of resistivity and the development-production performance for the low resistivity and low permeability oil group in the first member of Zhujiang Formation in Wenchang area of Pearl River Mouth Basin,which restrict its subsequent development and adjustment.In order to solve this problem,the reliability of the low limit of resistivity of Oil Group ZJ1-2U in Wenchang B Oilfield was analyzed by using drilling,logging,analysis and production performance data.Through the comparison of the development-production performance,basic data,reservoir mode and oil column height,it is considered that the current development status and reservoir model of“double-low”oil group can be accurately reflected by the low limit of resistivity after it was reduced from 1.1Ω·m to 1.0Ω·m.And then,Oil Group ZJ1-2U will be a unified reservoir system,the current production status and reservoir model are highly consistent,the contradictions in the oil column height and basic data comparison can be solved,and there are large reserves and development potential in the lower oil/water bearing layers.According to these understandings,three countermeasures were put forward to implement the low limit of 1.0Ω·m resistivity,which will release the reserve potential of large-scale low resistivity and low permeability oil reservoirs and make a certain contribution to the reserve replacement of Wenchang Oilfield.
作者
王正
岳绍飞
雷霄
张乔良
薛国庆
代云娇
WANG Zheng;YUE Shaofei;LEI Xiao;ZHANG Qiaoliang;XUE Guoqing;DAI Yunjiao(Beijing Spavin Technology Co Ltd, Beijing 100101, China;HCNOOC China Ltd, Zhanjiang 524057,China)
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2021年第3期143-150,共8页
Petroleum Geology & Oilfield Development in Daqing
关键词
珠江口盆地
文昌区
低阻低渗
电阻率下限
Pearl River Mouth Basin
Wenchang area
low resistivity and low permeability
low limit of resistivity
