鄂尔多斯盆地东南地区延长组长63-长71低孔低渗储层裂缝特征及其影响因素
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TE122.1

基金项目:

国家科技重大专项“大型油气田及煤层气开发”(2016ZX05050)


Fracture Characteristics and Lnfluencing Factors in Chang 63-Chang71 Low-porosity and Low-permeability Reservoir of Yanchang Formation in Southeastern Ordos Basin
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    研究区长63-长71低孔低渗储层天然裂缝发育类型多、成因复杂,为了厘清其裂缝发育特征及其影响因素,通过综合运用野外露头调查、岩心观察及成像测井裂缝识别等方法,系统分析了研究区长63-长71裂缝特征及其影响因素。结果表明:研究区长71较长63裂缝更发育,裂缝主要发育在细砂岩中,产状以垂直缝和高角度斜交缝为主,多数为未充填缝,裂缝的发育主要受区域应力值、地层岩性、岩石物性、岩层厚度及力学结构面影响。研究成果为该地区低孔低渗储层注水驱油和人工压裂的部署方案提供理论依据与支持。

    Abstract:

    In order to clarify the characteristics of fracture development and its influencing factors, there are many types and complex causes of natural fractures in the low-porosity and low-permeability reservoirs of Chang 63-Chang 71 in the study area. By means of outcrop investigation, core observation and fracture identification by imaging logging, the characteristics and influencing factors of fractures in the study area from Chang 63-Chang 71 were systematically analyzed. The results show that the fractures of Chang 71 are more developed than those of Chang 63 in the study area. The fractures are mainly developed in fine sandstone, and their occurrence is dominated by vertical fractures and high Angle oblique fractures, most of which are unfilled fractures. The development of fractures is mainly affected by regional stress value, formation lithology, petrophysical property, rock layer thickness and mechanical structural plane. The research results provide theoretical basis and support for the deployment plan of water injection for oil recovery and artificial fracturing in low porosity and low permeability reservoirs in the study area.

    参考文献
    相似文献
    引证文献
引用本文

张忠义,邓翔,李俊武. 鄂尔多斯盆地东南地区延长组长63-长71低孔低渗储层裂缝特征及其影响因素[J]. 科学技术与工程, 2024, 24(28): 12025-12032.
Zhang Zhongyi, Deng xiang, Li junwu. Fracture Characteristics and Lnfluencing Factors in Chang 63-Chang71 Low-porosity and Low-permeability Reservoir of Yanchang Formation in Southeastern Ordos Basin[J]. Science Technology and Engineering,2024,24(28):12025-12032.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-01-09
  • 最后修改日期:2024-10-10
  • 录用日期:2024-02-01
  • 在线发布日期: 2024-11-05
  • 出版日期: