气田开发

气井产能测试新方法――回压等时试井

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  • 1.中国石油勘探开发研究院,北京 100083;2.长庆石油勘探开发研究院,陕西 西安710032
唐俊伟(1967-),男,湖北孝感人,博士后,主要从事天然气开发研究.

收稿日期: 2003-10-20

  修回日期: 2004-04-09

  网络出版日期: 2004-10-20

A NEW TESTING METHOD OF GAS WELL POTENTIAL:BACKPRESSURE ISOCHRONAL TEST

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  • 1. Research Institute of Petroleum Exploration  and Development, PetroChina, Beijing 100083, China; 2. Research Institute of Petroleum Exploration & Development, Changqing Oilfield, Xi'an 710032, China

Received date: 2003-10-20

  Revised date: 2004-04-09

  Online published: 2004-10-20

摘要

"单点法"产能测试具有时间短、放空气量小的优点,但对低渗气藏,气井生产达到稳定需要很长时间,因此通过短时间测试确定的产能误差很大,不能准确评价气井的实际生产能力。以回压试井理论和渗流叠加原理为基础,提出了\"回压等时试井\"产能评价方法,该法所需测试时间与\"单点法\"大致相同,但能较准确地评价低渗气井产能。通过模拟井资料的检验,证明回压等时试井结果可靠。

本文引用格式

唐俊伟, 马新华, 焦创斌贝, 范丽宏 . 气井产能测试新方法――回压等时试井[J]. 天然气地球科学, 2004 , 15(5) : 540 -544 . DOI: 10.11764/j.issn.1672-1926.2004.05.540

Abstract

The single-point potential test has two merits. One is that in needs a short test time. Another is that the quantity of relief gas is  small. But it will cause a great error in evaluating a low permeability gas well productivity because the gas well will cost a long time to reach a pseudo steady  state. To resolve the problem, based on backpressure test theory and superposition principle, this paper designed a new test method, named Backpressure Isochronal Test. It can accurately evlauate the productivity of gas wells with low permeability in a short test time which approximately equals to the time the  single-point method needs. The analysis and contrast of analog wells reveal that the result is reliable.

参考文献

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