双重介质复合数值试井技术在裂缝性礁灰岩底水油藏中的应用

杨勇; 谢日彬; 闫正和; 孙常伟; 李小东

doi:10.3969/j.issn.1006-6535.2020.05.015

特种油气藏 >

2020 , Vol. 27 >Issue 5: 100 - 105

DOI: https://doi.org/10.3969/j.issn.1006-6535.2020.05.015

油藏工程

双重介质复合数值试井技术在裂缝性礁灰岩底水油藏中的应用

杨勇 ,
谢日彬 ,
闫正和 ,
孙常伟 ,
李小东

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1.中海石油(中国)有限公司深圳分公司,广东深圳 518000;
2.油气藏地质及开发工程国家重点实验室,四川成都 610500;
3.西南石油大学,四川成都 610500

杨勇(1983—),男,工程师,2006年毕业于长江大学计算机科学与应用专业,2009年毕业于该校油气田开发地质专业,获硕士学位,现主要从事开发生产技术研究与实施工作。

收稿日期: 2020-03-16

修回日期: 2020-07-03

网络出版日期: 2022-02-18

基金资助

国家科技重大专项“深层复杂气藏气井完井优化研究”(2016ZX05052003)

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Application of dual-media compound numerical well test technology in fractured reef limestone reservoirs with bottom water

Yang Yong ,
Xie Ribin ,
Yan Zhenghe ,
Sun Changwei ,
Li Xiaodong

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1. Shenzhen Branch of CNOOC (China) Co., Ltd., Shenzhen ,Guangdong 518000,China;
2. State Key Laboratory Of Reservoir Geology & Development Engineering, Chengdu ,Sichuan 610500,China;
3. Southwest Petroleum University, Chengdu,Sichuan 610500,China

Received date: 2020-03-16

Revised date: 2020-07-03

Online published: 2022-02-18

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摘要

针对流花11-1油田解析试井结果与地质和动态特征吻合程度差的问题,综合考虑地质模型、生产历史、重力毛管力、相对渗透率曲线,运用多层裂缝性底水油藏的水平井数值试井解释方法,形成裂缝性底水油藏水平井双重介质复合数值试井技术。在整体压力恢复测试资料中筛选出40口井用于压力恢复数据,进行双重介质复合数值试井解释,该方法既考虑了底水能量,又考虑了多层之间渗透率的差异。结合现有地质认识,该数值模型解释结果表明,油田压力恢复试井曲线主要存在线性流、双线性流和双孔渗流3种流动特征。针对不同类型井建议减小生产压差或者采取稳油控水方式进行改造,对实际生产具有指导意义。

关键词： 数值试井; 裂缝; 底水油藏; 水平井; 压力恢复; 礁灰岩

本文引用格式

杨勇 , 谢日彬 , 闫正和 , 孙常伟 , 李小东 . 双重介质复合数值试井技术在裂缝性礁灰岩底水油藏中的应用[J]. 特种油气藏, 2020 , 27(5) : 100 -105 . DOI: 10.3969/j.issn.1006-6535.2020.05.015

Abstract

In view of the poor coincidence between analytical well test results and geological and dynamic characteristics in Liuhua 11-1 Oilfield, the dual-media compound numerical well test technology for horizontal wells in fractured reservoirs with bottom water is formed by comprehensively considering geological model, production history, gravity, capillary force and relative permeability curve. Forty wells were selected from the overall pressure build-up test data for dual-media compound numerical well test interpretation. In this method, both bottom water energy and permeability difference between layers are considered. Combines with the existing geological knowledge; The numerical model interpretation results show that:the oilfield pressure build-up well test curves mainly have three flow characteristics: linear flow, bilinear flow and dual-porosity seepage. According to different types of wells, it is suggested that this well can be stimulated by increasing production pressure difference or stabilizing oil and controlling water. This study has a reference for the development of similar reservoirs,which provides references for prodution.

Key words： numerical well test; fracture; reservoir with bottom water; horizontal well; pressure build-up; reef limestone

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