石油地质与工程2025，Vol.39Issue(6)：1-5,11,6.DOI:10.26976/j.cnki.sydz.202506001
安棚地区浅中层系特低渗油藏开发效果改善技术
Technologies for improving development effect of shallow-middle layer ultra-low permeability oil reservoirs in Anpeng area
刘峥君 1周永强 1贺子潇 1黎明 1苏剑红 1陈昭 1韩丰华1
作者信息
- 1. 中国石化河南油田分公司勘探开发研究院,河南 南阳 473132
- 折叠
摘要
Abstract
The shallow-middle layers in the Anpeng area of Zhaowa Oilfield belong to a multi-provenance fan delta sedimentary system.With deep-buried oil reservoirs,they are typical fractured ultra-low permea-bility oil and gas reservoirs.In the early stage,an irregular inverted nine-spot injection-production well pattern was adopted for development,and most production wells showed violent water flooding in the north-east direction.Later,the injection-production well rows were adjusted from east-west to northeast,and an irregular five-spot well pattern was used.However,affected by factors such as poor reservoir physical prop-erties,well-developed natural fractures,and strong heterogeneity,the development effect has not been im-proved.High incidence of water channeling occurs in the fan delta front and structural axis,while water in-jection is ineffective in the near-provenance area.Based on the differentiated understanding of reservoirs,vectorized well pattern adjustment technologies such as small well spacing infill drilling,fracturing-driven injection enhancement,and cyclic water injection,as well as supporting fracturing and injection enhance-ment technologies,were adopted in a targeted manner.After field application,a total of 47 new wells and stimulation wells were implemented from 2020 to 2024.The oil production rate of the block increased from 0.13%to a maximum of 0.30%,and the cumulative oil increase in the stage reached 2.3×104 t,improving the development effect.This study provides a technical reference for the efficient development of similar fractured ultra-low permeability oil reservoirs.关键词
赵凹油田安棚地区/特低渗油藏/储层认识/技术对策/开发效果Key words
Anpeng area of Zhaowa Oilfield/ultra-low permeability reservoirs/reservoir understanding/technical countermeasures/development effect分类
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刘峥君,周永强,贺子潇,黎明,苏剑红,陈昭,韩丰华..安棚地区浅中层系特低渗油藏开发效果改善技术[J].石油地质与工程,2025,39(6):1-5,11,6.
