实验模拟指示曲线法确定气井合理生产压差

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (5): 432-434.

实验模拟指示曲线法确定气井合理生产压差

高博禹¹, 彭仕宓¹, 王颖¹, 向阳², 张文胜³

1.石油大学,北京 102249;
2.成都理工大学,成都 610059;
3.中国石油华北油田分公司采油四厂,河北廊坊 065000

收稿日期:2002-11-20 修回日期:2003-01-22 发布日期:2021-01-14
作者简介:高博禹(1977-),男,辽宁辽阳人,在读博士研究生,油气田地质工程,联系电话:010-89733790

Application of Lab-Simulation of Indicative Curves in Determination of Reasonable Production Pressure Difference in Gas Wells

GAO Bo-yu¹, PENG Shi-mi¹, WANG Ying¹, XIANG Yang²

1. University of Petroleum, Beijing 102249, China;
2. Chengdu University of Technology, Chengdu, Sichuan 610059, China

Received:2002-11-20 Revised:2003-01-22 Published:2021-01-14

摘要/Abstract

摘要： 通过对气井的二项式方程以及采气指示曲线的分析可知:为充分利用地层能量,采气指示曲线上翘点所对应的气井流压即为气井的合理流压,该点所对应气井的生产压差即为气井的合理生产压差,在此理论基础上,采用实验模拟研究的方法,根据油气藏实验模拟相似定律,充分模拟地层条件下井筒壁附近储集层采气指示曲线,确定合理流动压差,进一步转化为气井的合理生产压差。通过对长庆油田8口井的实验研究,得出该地区一类储集层气井的合理生产压差应该控制在2.5MPa以内,二类储集层气井的合理生产压差应该控制在3.5MPa以内,三类储集层气井的合理生产压差应控制在4.5MPa以内。

关键词: 采气, 指示曲线, 生产压差, 模拟实验, 相似分析

Abstract: The analyses of binomial equation for gas wells and gas production indicative curves are conducted, and show that to fully utilize in-situ energy, the flowing pressure of gas well corresponding to tilting or upwarping point indicative curve from gas wells should be the reasonable flowing pressure of gas wells, while the production pressure difference at this point can be used as the reasonable production pressure difference. Based on this theory, adopting lab simulation approach and scaled physical mod-eling of petroleum reservoir, this paper presents full simulation of gas producing indicative curves from nearby sidewall under the reservoir conditions, determining reasonable flowing pressure difference, and conversing it to reasonable production pressure differ-ence of gas well. From the lab analyses of 8 wells in Changqing oilfield, it is concluded that the reasonable production pressure differences of gas wells should be controlled within 2.5MPa for Class Ⅰ reservoir, 3.5MPa for Class Ⅱ reservoir and 4.5MPa for Class Ⅲ reservoir.

Key words: gas production, indicative curve, production pressure difference, simulation experiment, scaled analysis

中图分类号:

TE375

高博禹, 彭仕宓, 王颖, 向阳, 张文胜. 实验模拟指示曲线法确定气井合理生产压差[J]. 新疆石油地质, 2003, 24(5): 432-434.

GAO Bo-yu, PENG Shi-mi, WANG Ying, XIANG Yang. Application of Lab-Simulation of Indicative Curves in Determination of Reasonable Production Pressure Difference in Gas Wells[J]. Xinjiang Petroleum Geology, 2003, 24(5): 432-434.

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