西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

锦16 区块储层及优势通道特征分析*

刘红岐1,李宝莹2,王万福3,代春明4,唐丹3   

  1. 1.“油气藏地质及开发工程”国家重点实验室·西南石油大学,四川成都610500
    2. 中国石油辽河油田分公司锦州采油厂,辽宁锦州121209
    3. 中国石油安全环保技术研究院,北京海淀102200
    4. 中国石油吉林油田分公司扶余采油厂,吉林扶余138000
  • 出版日期:2014-12-01 发布日期:2014-12-01
  • 基金资助:

    国家重大科技专项(2011ZX05030–005–03)。

Characteristics Analysis of the Reservoir and Predominate
Channel in Block Jin-16

Liu Hongqi1, Li Baoying2, Wang Wanfu3, Dai Chunming4, Tang Dan3   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. Jinzhou Production Plant,Liaohe Oilfield Branch Company,CNPC,Jinzhou,Liaoning 121209,China
    3. Oil Security Environmental Protection Technology Research Institute,CNPC,Haidian,Beijing 102200,China
    4. Fuyu Production Plant,Jilin Oilfield Branch Company,CNPC,Fuyu,Jilin 138000,China
  • Online:2014-12-01 Published:2014-12-01

摘要:

锦16 区块是一个典型的高孔隙度、高渗透率的双高开发油田,在注水开发过程中,注入水沿强水洗大孔道无
效窜流,剩余油和水淹层分布零散,挖掘剩余油难度较大。结合JX2 井岩芯分析、镜下薄片等资料分析了本区块储层
物性、储集空间特征和优势通道的形成原因。分析认为,由于地层压实程度低、胶结物含量低、以泥质胶结为主,岩石
胶结作用差,这是锦16 区块形成优势渗流通道的主要原因,而高孔高渗储层在后期注水开发的影响,孔隙空间受到注
水冲刷和后期物理化学的改造作用,使得大孔道的渗流优势更加明显,进一步加剧了优势通道的形成。

关键词: 锦16 区块, 大孔道, 优势通道, 注水开发, 高孔高渗

Abstract:

Block Jin-16 is an oilfield typical of high-porosity and high-permeability. In the process of water-flooding development,
the injected water circulates along large pore channels,and the residual oil and water flooded zone scatter over the
rocks,which increased the difficulty to extract remaining oil. This paper mainly discusses the lithology characteristics,reservoir
space properties and the reasons for the formation of the advantaged channels based on the core data,casting lamella and
other information. It illustrates that the reservoir has low compaction,low cement content,rich argillaceous cementation and
poor rock cementation,which result in the formation of preferential channels in Block Jin-16. Another important aspect is that
the high initial porosity and permeability are enlarged by injected water during the later stage of production. The influence of
the pore space by water flushing and late physical and chemical reformation makes large channel seepage more obvious,and
further exacerbates the formation of advantage channel.

Key words: Block Jin-16, large pore, preferential channel, exploitation with injected water, high porosity and high permeability