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| 计算异常高压气藏地层压缩系数的一种新方法 | |
| 引用本文： | 樊怀才,李晓平,陈军,张袁辉,窦天财.计算异常高压气藏地层压缩系数的一种新方法[J].西安石油大学学报(自然科学版),2012,27(2):41-45,119. |
| 作者姓名： | 樊怀才 李晓平 陈军 张袁辉 窦天财 |
| 作者单位： | 1. 西南石油大学“油气藏地质及开发工程国家重点实验室”,四川成都,610500 2. 西南油气田分公司重庆气矿,重庆,400021 3. 延长石油集团油气勘探公司勘探开发部,陕西延安,716000 |
| 基金项目： | 教育部高等学校博士学科点专项科研基金(编号:20105121110006);油气藏地质及开发工程国家重点实验室开放基金“复杂气藏高效开发基础理论与应用技术研究”(编号:PLN-08ZL001)资助 |
| 摘 要： | 准确的地层压缩系数在开发异常高压气藏的过程中有着重要意义.为了正确获得随气藏开发而不断变化的地层压缩系数,在研究现有方法的基础上,通过分析异常高压气藏地层压缩系数随地层压力动态变化的特点,从天然气体积系数与地层压缩系数定义出发,运用产量递减律和采气指数概念,推导了地层压缩系数动态变化的表达式.将本方法与经验公式法计算的地层压缩系数进行了对比,结果表明,本方法计算的地层压缩系数更合理、准确,并且是一个能够正确反映气藏开发特征的动态值. |
| 关 键 词： | 异常高压气藏 地层压缩系数 计算方法 开发动态 |
A new method for calculating the formation compression factor of abnormally high-pressure gas reservoirs |
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| FAN Huai-cai,LI Xiao-ping,CHEN Jun,ZHANG Yuan-hui,DOU Tian-cai.A new method for calculating the formation compression factor of abnormally high-pressure gas reservoirs[J].Journal of Xian Shiyou University,2012,27(2):41-45,119. | |
| Authors: | FAN Huai-cai LI Xiao-ping CHEN Jun ZHANG Yuan-hui DOU Tian-cai |
| Institution: | 1.State Key Laboratory of Oil and Gas Reservoir Geology Exploitation,Southwest Petroleum University,Chengdu 610500,Sichuan,China;2.Chongqing Gas Field,PetroChina Southwest Oil & Gas Field Company,Chongqing 400021,China;3.Development Department,Oil and Gas Exploration Company,Yanchang Petroleum Group,Yan’an 716000,Shaanxi,China) |
| Abstract: | It is important to obtain the accurate formation compression factor in the development of the abnormally high-pressure gas reservoirs.In order to gain the correct formation compression factor varying in the development of the gas reservoir,a new expression for formation compression factor was derived from the definitions of natural gas volume coefficient and formation compression factor and by analyzing dynamically varying characteristics of the formation compression factor with the formation pressure.Compared with the formation compression factors calculated by the empiric formulas,the formation compression factor calculated by the new expression is more reasonable and accurate,and it is a variable that can correctly reflect the development performance of the abnormally high-pressure gas reservoirs. |
| Keywords: | abnormally high-pressure gas reservoir formation compression factor calculation method development performance |
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