油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (2): 17-20.

• 油气藏评价 • 上一篇    下一篇

一种试井模拟技术在南海高温高压气藏X1井产能评价中的应用

雷霄,李树松,王雯娟,张风波,何志辉,马帅   

  1. 中海石油(中国)有限公司湛江分公司,广东 湛江 524057
  • 收稿日期:2017-09-23 出版日期:2019-04-26 发布日期:2019-05-07
  • 作者简介:雷霄(1972—),男,教授级高级工程师,硕士,油气藏工程和油气藏数值模拟。

Application of a well testing simulation technique in productivity evaluation of well-X1 in high temperature and high pressure reservoir

Lei Xiao,Li Shusong,Wang Wenjuan,Zhang Fengbo,He Zhihui,Ma Shuai   

  1. Zhanjiang Branch of CNOOC(China) Ltd., Zhanjiang, Guandong 524057, China
  • Received:2017-09-23 Online:2019-04-26 Published:2019-05-07

摘要:

南海高温高压气井产能测试分析存在机械变表皮无法计算导致产能方程负异常的问题,导致无法有效评价高温高压气井无阻流量。提出以高温高压气井变表皮分析技术和试井模拟产能评价技术为主的高温高压气井试井模拟技术,计算储层真实污染情况,并根据试井模拟产能测试的流压、产量等进行无阻流量计算,消除了高温高压气井产能方程的负异常,进而确定高温高压气井的产能。高温高压气井试井模拟技术成功应用于南海高温高压气藏X1井,有效指导了气田配产。

关键词: 高温高压, 机械变表皮, 无阻流量, 试井模拟技术

Abstract:

The following problems stood out in the deliverability tests and analysis of gas wells with high temperature and high pressure(HTHP) in South China Sea. Firstly, it was unable to accurately calculate the variable mechanical skin factors, resulting in the negative slope of deliverability equation, bringing about inaccurate calculation of the absolute open flow of HTHP gas wells. One new simulation technique, mainly consisting of variable skin analysis and productivity numerical simulation, for HTHP gas wells was proposed, and then the real damage could be evaluated accurately. In addition, the absolute open flow of HTHP gas wells was calculated based on flowing pressure and rates data in deliverability test simulation, eliminating the negative slope of deliverability equation. This simulation technique had been applied successfully well-X1 of HTHP gas reservoir in South China Sea, providing guidance for gas field production.

Key words: high temperature and high pressure, variable mechanical skin factor, absolute open flow, well testing simulation technique

中图分类号: 

  • TE373