松辽盆地长岭火山岩气藏气井产水模式及影响因素

doi:10.11764/j.issn.1672-1926.2018.08.007

天然气地球科学

松辽盆地长岭火山岩气藏气井产水模式及影响因素

宋文礼，董家辛，孙圆辉，黄玉欣，王军宇

1.中国石油吉林油田公司，吉林松原 138000；2.中国石油勘探开发研究院，北京 100083; 3.长江大学地球科学学院，湖北武汉 430100

收稿日期:2018-03-02 修回日期:2018-07-14 出版日期:2018-12-10
通讯作者: 黄玉欣(1981-)，男，吉林农安人，高级工程师，在读博士，主要从事油气勘探开发研究. E-mail:hyx2001@126.com.
作者简介:宋文礼(1970-)，男，吉林松原人，高级工程师，主要从事油气田开发管理及综合地质研究.E-mail：songwenli@petrochina.com.cn.
基金资助:
国家科技重大专项“致密气有效开发与提高采收率技术”（编号：2016ZX05047005）资助.

Water-yielding pattern and influencing factors of gas wells of Changling volcanic gas reservoir，Songliao Basin

Song Wen-li,Dong Jia-xin,Sun Yuan-hui，Huang Yu-xin,Wang Jun-yu

1.PetroChina Jilin Oilfield Company，Jilin 138000，China;
2.China Research Institute of Petroleum Exploration & Development，PetroChina，Beijing 100083，China;
3.College of Earth Sciences,Yangtze University,Wuhan 430100,China

Received:2018-03-02 Revised:2018-07-14 Online:2018-12-10

摘要/Abstract

摘要： 长岭火山岩气藏天然气资源丰富，但开发过程中气井普遍存在产水现象。准确分析气井产水规律、产水模式及其影响因素，对优化开发方案及提高开发效果具有重要意义。通过对长岭营城组气藏地质特征及产水动态特征综合分析研究，结果表明：气井产水来源主要为凝析水和边底水；利用数值模拟技术研究不同产水类型的产出机理，分析了气井产水规律并运用数值模拟技术对气井产水量进行预测，在此基础上归纳总结出4种产水模式，分别为裂缝纵向强水窜、裂缝纵向弱水窜、裂缝—孔隙纵向水锥、高含水饱和度型。明确了气井产水的影响因素，主要受构造特征、气井调峰、井间干扰及气井作业4个方面影响；最终形成相应的“整体考虑、分类治理”的气井产水开发策略。

关键词: 长岭气田, 火山岩气藏, 产水规律, 产水模式, 影响因素, 开发对策

Abstract: Changling volcanic gas reservoir is rich in natural gas resources. However water production in gas wells is a common phenomenon in the development process. Accurate analysis of producing water law，water-yielding pattern and its influencing factors of gas wells have great significance in optimizing development plan and improving development effect. This paper studied the geological characteristics and comprehensively analyzes water producing dynamic characteristics of gas reservoir of Yingcheng Formation，Changling Gasfield. The result shows that the main sources of producing water in gas wells are condensate water and bottom water. Numerical simulation technology was used to study the mechanism of different types of water production output. This paper analyzed the water-yielding law of the gas wells and used numerical simulation to forecast the quantity of gas wells water production.On this basis，the paper summarized 4 kinds of water-yielding patterns，i.e.,fracture in the longitudinal strong water channeling，fracture in the longitudinal weak water channeling，fracture-pore in the longitudinal water coning，and high water saturation pattern. Moreover this paper made clear the influencing factors of gas wells water-yielding.There are four main factors，i.e.，tectonic characteristics，gas wells peaking，inter-well interference，gas wells production.Finally the paper proposed a water-yielding development strategy which is overall consideration，classification management.

Key words: Changling Gasfield, Volcanic gas reservoir, Water-yielding law, Water-yielding pattern, Influencing factors, Development strategy

中图分类号:

TE32

宋文礼, 董家辛, 孙圆辉, 黄玉欣, 王军宇. 松辽盆地长岭火山岩气藏气井产水模式及影响因素[J]. 天然气地球科学, 2018, 28(12): 1788–1794.

Song Wen-li, Dong Jia-xin, Sun Yuan-hui, Huang Yu-xin, Wang Jun-yu. Water-yielding pattern and influencing factors of gas wells of Changling volcanic gas reservoir，Songliao Basin[J]. Natural Gas Geoscience, 2018, 28(12): 1788–1794.

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