[1]蔡珺君,欧家强,占天慧,等.考虑应力敏感的短时测试气井产能评价方法[J].复杂油气藏,2019,12(01):57.[doi:10.16181/j.cnki.fzyqc.2019.01.012]
　CAI Junjun,OU Jiaqiang,ZHAN Tianhui,et al.Productivity evaluation method of gas well consideringstress sensitivity in short-term test[J].Complex Hydrocarbon Reservoirs,2019,12(01):57.[doi:10.16181/j.cnki.fzyqc.2019.01.012]
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考虑应力敏感的短时测试气井产能评价方法()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12卷
期数:
2019年01期
页码:
57
栏目:
油气开发
出版日期:
2019-03-25

文章信息/Info

Title:
Productivity evaluation method of gas well consideringstress sensitivity in short-term test
作者:
蔡珺君1; 欧家强 1; 占天慧2;  姚永君1; 甘笑非1; 邓 庄1; 周莲莲1
1.中国石油西南油气田公司川中油气矿,四川 成都 610051; 2.中国石油西南油气田公司勘探开发研究院,四川 成都 610051
Author(s):
CAI Junjun1; OU Jiaqiang1; ZHAN Tianhui2; YAO Yongjun1; GAN Xiaofei1; DENG Zhuang1; ZHOU Lianlian1
1.Central Sichuan Division, PetroChina Southwest Oil & Gas Field Company, Chengdu 610051,China; 2.Exploration and Development Research Institute, PetroChina Southwest Oil & Gas Field Company, Chengdu 610051,China
关键词:
应力敏感 短时测试 产能评价 无阻流量
Keywords:
stress sensitivity;  short-term test;  productivity evaluation;  absolute open-flow capacity of gas well
分类号:
TE328
DOI:
10.16181/j.cnki.fzyqc.2019.01.012
文献标志码:
A
摘要:
在气藏开发早期,气井产能的评价主要采用试油资料,但为保护环境和天然气资源,试油测试时间往往较短。此外,应力敏感现象使得气井在测试、开发过程中均存在渗透率变化的问题。因此,如何运用气井早期的短期测试数据,描述气井生产过程中的真实流动状态,从而正确评价气井产能,为下步开发技术政策的制定提供技术支撑是亟需解决的难题。从应力敏感现象和渗流方程出发,通过对气井不稳定流动、稳定流动的产能方程进行修正,建立了考虑应力敏感短期测试的气井产能方程计算方法。通过实例应用,讨论了短时测试以及应力敏感对气井产能的影响。研究表明:考虑应力敏感的短时流动气井无阻流量明显偏小,如果忽视气藏的应力敏感特性和测试情况,均会高估气井产能。
Abstract:
In the early stage of gas reservoir development, the testing data are mainly used to evaluate the productivity of gas well. However, the testing time is usually short due to the protection of environment and natural gas resources. In addition, the stress sensitivity causes the permeability change in the test and development process. Therefore, it is a difficult problem that how to describe the actual flow state in the production process of gas well by using the short-term testing data in the early stage so as to correctly evaluate the productivity of gas well and provide the technical support for the next development. Based on the stress sensitive phenomenon and filtration equation, by correcting the productivity equation of gas well under the unsteady or steady flow, it was established the calculation method for productivity equation of gas well considering stress sensitivity in short-term test. Finally, an example was applied to discuss the influence of short test time and stress sensitivity on the productivity. The study indicated that the absolute open-flow capacity of gas well considering stress sensitivity in short-term test was obviously smaller. If the characteristics of stress sensitivity and the test situation were ignored, the over-estimated productivity of gas well would be obtained.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-09-19; 改回日期:2018-10-26。第一
作者简介:蔡珺君(1987—),博士,工程师,主要从事油气田渗流理论、试井及油气藏动态分析研究。E-mail:swadings@petrochina.com.cn。
更新日期/Last Update: 2019-03-25