海洋地质前沿2024，Vol.40Issue(1)：36-43,8.DOI:10.16028/j.1009-2722.2023.001
东营凹陷低渗透岩性油藏储层非均质性特征及水驱剩余油分布规律
Heterogeneity of low permeability lithologic reservoir and distribution of remaining water-driven oil in Dongying Sag
摘要
Abstract
The potential of low permeability reservoir in China is huge,which is controlled by the characteristics of underground reservoir and the level of development technology.Taking the low permeability lithologic reser-voir of Sha-2 Member(Sand Ⅱ),Block H67,Dongying Sag as an example,the reservoir heterogeneity character-istics of the low permeability lithologic reservoir were analyzed by seismic,logging,core analysis,and dynamic production data.The heterogeneity characteristics of low permeability lithologic reservoirs were analyzed,and its influence on water injection development was described.Results show that the pore radius of low permeability reservoir is small,and the heterogeneity of materials between at-plane and in-layer is strong as indicated by a large difference in permeability between stably distributed interlayer and rhythmic sand layer,and the horizontal distri-bution of physical property of the sand body presented obvious directivity.Affected by reservoir heterogeneity,the water injection development of low-permeability lithological reservoirs was characteristic of insufficient strati-graphic energy,low daily fluid volume per well,and uneven horizontal water injection,while the remaining oil re-serves after water injection remains abundant.The remained oil is concentrated in mainly the reservoir layers and areas with large reservoir thickness and poor physical properties.The above results and understanding have im-portant guiding significance for the development of low-permeability lithological reservoirs.关键词
低渗透/岩性油藏/储层非均质性/注水开发/剩余油/东营凹陷Key words
low permeability/lithologic reservoir/reservoir heterogeneity/water injection development/residual oil/Dongying Sag分类
海洋科学引用本文复制引用
王春伟,韩淑乔,杜焕福,杨勇,孙鑫,董佑桓,刘继水,边旭..东营凹陷低渗透岩性油藏储层非均质性特征及水驱剩余油分布规律[J].海洋地质前沿,2024,40(1):36-43,8.基金项目
国家重点研发计划项目"油/水/固界面浸润调控智能流体提高采收率关键材料与机理研究"(2019YFA0708700) （2019YFA0708700）
中石化经纬有限公司重点项目"定测录导一体化"(JWKY2105) （JWKY2105）
