长期注水开发砂岩油田储层渗透率变化规律及微观机理

doi:10.7623/syxb201609010

石油学报 ›› 2016, Vol. 37 ›› Issue (9): 1159-1164.DOI: 10.7623/syxb201609010

长期注水开发砂岩油田储层渗透率变化规律及微观机理

杜庆龙

大庆油田有限责任公司勘探开发研究院黑龙江大庆 163712

收稿日期:2016-04-05 修回日期:2016-08-08 出版日期:2016-09-25 发布日期:2016-09-30
通讯作者: 杜庆龙,男,1964年11月生,1993年获中国石油大学(华东)硕士学位,2003年获得中国科学院博士学位,现为大庆油田有限责任公司勘探开发研究院总地质师、教授级高级工程师,主要从事油藏工程、水驱开发调整和剩余油研究工作。Email:duql@petrochina.com.cn
作者简介:杜庆龙,男,1964年11月生,1993年获中国石油大学(华东)硕士学位,2003年获得中国科学院博士学位,现为大庆油田有限责任公司勘探开发研究院总地质师、教授级高级工程师,主要从事油藏工程、水驱开发调整和剩余油研究工作。Email:duql@petrochina.com.cn
基金资助:
国家重大科技专项（2011ZX05052）和中国石油天然气股份有限公司重大科技项目（2011E1205）资助。

Variation law and microscopic mechanism of permeability in sandstone reservoir during long-term water flooding development

Du Qinglong

Exploration and Development Research Institute, Daqing Oilfield Limited Company, Heilongjiang Daqing 163712, China

Received:2016-04-05 Revised:2016-08-08 Online:2016-09-25 Published:2016-09-30

摘要/Abstract

摘要：

大庆喇萨杏油田为典型的陆相非均质砂岩油田，其储层非均质性强，由于不同渗透率储层孔喉结构特征、黏土矿物构成等存在差异，水驱前后表现出各不相同的变化特征，进入特高含水开发阶段后，“三大矛盾”更加凸显。综合利用扫描电镜、铸体薄片、核磁共振、检查井分析、驱油实验和生产动态等资料，系统研究了不同渗透率储层水驱前后渗透率的变化规律，量化了不同渗透率储层水驱前后渗透率变化幅度，从储层黏土矿物、粒度中值、孔隙分布和孔喉特征等方面分析了导致渗透率变化差异的机理，阐述了不同渗透率储层参数变化对注水开发的影响，从而对特高含水期不同类型储层控水挖潜有一定的指导作用。

关键词: 大庆油田, 喇萨杏储层, 渗透率变化规律, 微观机理, 水驱

Abstract:

Daqing La-Sa-Xing oilfield is a typical continental heterogeneous sandstone oilfield with strong reservoir heterogeneity. Due to the differences in pore throat structure characteristics and clay minerals composition of the reservoirs with diversified permeability, different variation characteristics are shown before and after water looding. After entering the ultra-high water-cut development stage, three major contradictions are more prominent. Scanning electron microscopy, cast sheet, nuclear magnetic resonance, inspection well analysis, flooding experiment, production performance and other data were comprehensively adopted to study the permeability variation laws and quantize the permeability change amplitude of the reservoirs with diversified permeability before and after water flooding. The mechanism for permeability variation difference was analyzed in terms of the clay minerals composition, median grain diameter, pore distribution and pore-throat characteristics of reservoirs. Meanwhile, this paper also narrates the influence of parameter changes in the reservoirs with diversified permeability on water flooding, which has a guiding role in tapping oil potential through water control in different types of reservoirs during the ultra-high water-cut stage.

Key words: Daqing oilfield, La-Sa-Xing reservoir, permeability variation law, microscopic mechanism, water flooding

中图分类号:

TE341

杜庆龙. 长期注水开发砂岩油田储层渗透率变化规律及微观机理[J]. 石油学报, 2016, 37(9): 1159-1164.

Du Qinglong. Variation law and microscopic mechanism of permeability in sandstone reservoir during long-term water flooding development[J]. Acta Petrolei Sinica, 2016, 37(9): 1159-1164.

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长期注水开发砂岩油田储层渗透率变化规律及微观机理

Variation law and microscopic mechanism of permeability in sandstone reservoir during long-term water flooding development

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