深层高温高压气井临界产量计算模型

计算物理 ›› 2015, Vol. 32 ›› Issue (3): 327-333.

深层高温高压气井临界产量计算模型

艾爽¹, 程林松¹, 刘红君¹, 张晋¹, 王涛², 张健³

1. 中国石油大学(北京)石油工程学院, 北京 102249;
2. 中海油田服务股份有限公司, 北京 101149;
3. 中国石化集团国际石油勘探开发有限公司, 北京 100083

收稿日期:2014-04-11 修回日期:2014-07-28 出版日期:2015-05-25 发布日期:2015-05-25
作者简介:艾爽(1986-),男,湖北崇阳人,博士生,从事非常规气藏开发研究,E-mail:aishuang4415@163.com
基金资助:
国家973(2013CB228000);国家自然科学基金(51174215/E0403);中国石油科技创新基金(2014D-5006-0206)资助项目

A Critical Production Rate Model for Deep High Temperature High Pressure Gas Wells

AI Shuang¹, CHENG Linsong¹, LIU Hongjun¹, ZHANG Jin¹, WANG Tao², ZHANG Jian³

1. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
2. CNOOC Oilfield Services Limited, Beijing 101149, China;
3. Sinopec International Exploration and Production Corporation, Beijing 100083, China

Received:2014-04-11 Revised:2014-07-28 Online:2015-05-25 Published:2015-05-25

摘要/Abstract

摘要： 基于热膨胀效应和环空体积变化效应这两种环空带压机理,结合气井生产过程中井筒温度-压力分布计算方法,考虑油层套管和油管的许可压力值,建立一个深层高温高压气井临界产量计算模型.运用迭代法求解模型,编制相关程序.结果表明:环空压力与主要受温度的影响,气井产量越高,井口温度越高,环空压力越大,油套管安全系数越低,因此需要考虑管柱安全性确定临界流量.利用新疆某深层高温高压气井的实际数据进行实例计算,结果可为深层高温高压气井的合理配产提供依据.

关键词: 环空带压, 高温高压, 深层气井, 临界产量, 热膨胀

Abstract: Based on two annular pressure buildup mechanisms, coupling of wellbore heat transfer and formation heat transfer and coupling of gas temperature and gas pressure, we build a calculation model for critical rate in deep high temperature high pressure( HT/HP) gas wells. It takes account of influence of gas well profile, string assembly and fluid properties. The model is solved with programm based on iterative method. Finally, it is applied to a deep HT/HP gas well in Tarim oilfield. Critical rate under several operational modes are calculated and they provide basis for optimum allocation in deep HT/HP gas wells.

Key words: annular pressure buildup, HT/HP, deep gas well, critical rate, thermal expansion

中图分类号:

TE375

艾爽, 程林松, 刘红君, 张晋, 王涛, 张健. 深层高温高压气井临界产量计算模型[J]. 计算物理, 2015, 32(3): 327-333.

AI Shuang, CHENG Linsong, LIU Hongjun, ZHANG Jin, WANG Tao, ZHANG Jian. A Critical Production Rate Model for Deep High Temperature High Pressure Gas Wells[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2015, 32(3): 327-333.