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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:

期数:

2021年01

页码:

124-128

栏目:

钻采工艺

出版日期:

2021-01-25

文章信息/Info

Title:

Compatibility of particle damage and pore throat structure in bioclastic limestone reservoir

文章编号:

23

作者:

汪周华1; 赵华臻2; 朱光亚3; 李茜瑶3; 郭平1; 景明强1

1.西南石油大学油气藏地质及开发工程国家重点实验室，四川 成都 610500；2.中国石化胜利油田分公司滨南采油厂，山东 滨州 256600； 3.中国石油勘探开发研究院中东所，北京 100083

Author(s):

WANG Zhouhua1;  ZHAO Huazhen2;  ZHU Guangya3;  LI Qianyao3;  GUO Ping1;  JING Mingqiang1

1.State Key Laboratory for Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; 2.Binnan Oil Production Plant, Shengli Oilfield Company, SINOPEC, Binzhou 256600, China; 3.Department of Middle East, Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

关键词:

生屑灰岩; 恒速压汞; 悬浮物颗粒; 喉道半径分布; 配伍性

Keywords:

bioclastic limestone;  constant-rate mercury injection;  suspended particles;  throat radius distribution;  compatibility

分类号:

TE357.6

DOI:

10.6056/dkyqt202101023

文献标志码:

A

摘要:

中东H油田Mishrif组属于典型的孔隙型生物碎屑灰岩储层，水驱是目前主要的开发方式，但注入水中固相颗粒的质量浓度及粒径严重影响其开发效果。为了弄清注入水对储层物性的影响，并为后期注水开发的水质要求及调整方案设计提供依据，文中基于恒速压汞实验及颗粒运移实验，研究了影响H油田Mishrif组储层渗流能力的主要微观因素以及注入水中悬浮物颗粒质量浓度与粒径的上限，并且分析了悬浮物颗粒粒径与喉道的配伍性。研究结果表明，喉道半径及分布是影响储层渗流能力的主要微观因素。当注入水中悬浮物颗粒粒径为5 μm时，颗粒质量浓度的上限为5 mg/L；当悬浮物颗粒质量浓度为3 mg/L时，颗粒粒径的上限为10 μm，接近于渗透率贡献峰值处的喉道半径。

Abstract:

The Mishrif Formation of H Oilfield in the Middle East is a typical porous bioclastic limestone reservoir. Water drive is the main development mode at present. However, the concentration and size of solid particles in injected water seriously affect the development effect of water drive. In order to understand the influence of injected water on reservoir physical parameters and provide basic parameters for water quality requirement and adjustment scheme design of later water-flooding development, based on the experiments of constant-rate mercury injection and suspended particles migration during water-flooding, this paper studies the main micro factors affecting the permeability of the Mishrif Formation in H Oilfield, as well as the upper limit of the concentration and size of suspended particles in the injected water. The compatibility between the particle size of suspension and throat was analyzed. The results show that the pore size and distribution of the throat are the main micro factors affecting the permeability of the formation. When the particle size of suspended solids in the injected water is 5 μm, the upper limit of particle concentration is 5 mg/L. When the concentration of suspended particles in the injected water is 3 mg/L, the upper limit of particle size is 10 μm, which is close to the throat radius at the peak of permeability contribution.

参考文献/References:

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　He Shunli Jiao Chunyan Wang Jianguo Luo Fuping Zou Lin.Discussion on the differences between constant-speed mercury injection and conventional mercury injection techniques[J].Fault-Block Oil and Gas Field,2011,18(01):235.
[2]解伟,张创,孙卫,等.恒速压汞技术在长2储层孔隙结构研究中的应用[J].断块油气田,2011,18(05):549.
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更新日期/Last Update: 2021-01-25