海上异常高压气藏早期开发阶段动态储量计算模型的建立及应用  

Establishment and Application of Dynamic Reserve Calculation Model for Early Development of Offshore Abnormal High Pressure Gas Reservoirs

作　　者：王帅 谭先红 张绍辉[2] 刘向南 解超 柏明星[3] WANG Shuai;TAN Xian-hong;ZHANG Shao-hui;LIU Xiang-nan;XIE Chao;BAI Ming-xing(CNOOC Research Institute Ltd.,Beijing 100028,China;PetroChina Research Institute of Petroleum Exploration&Development,Bejing 100083,China;Department of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]中国石油勘探开发研究院,北京100083 [3]东北石油大学石油工程学院,黑龙江大庆163318

出　　处：《数学的实践与认识》2020年第11期130-135,共6页Mathematics in Practice and Theory

摘　　要：H气田为中海油首个海上异常高压气田,目前处于开发早期,从国内外已开发气田的经验可知,采用常规方法计算的动态储量偏大,且由于海上气田井数较少,进一步加大了动态储量的计算难度,因此无法准确掌握气田开发动态.本文建立了海上异常高压气藏动态储量计算模型,修正了有效压缩系数计算模型,考虑了结果质量控制方法,在海上气田数据点较少的情况下保证计算精度.通过本文的研究,海上H气田动态储量预测精度提高了57%,解决了海上异常高压气田开发早期动态储量预测偏大的难题.该模型只需输入产量和压力数据,无需室内实验,具有可操作性强、精度高的特点,为气田调整挖潜提供了重要依据.Abnormally high-pressured of H offshore gas field is on the early stage development.Based on the early stage development experience in abnormally high-pressured gas fields,the calculated dynamic reserves will be larger than the actual value.And the number of development wells in offshore gas fields is relatively small,which makes it more difficult to accurately calculate dynamic reserves.If the gas fields development dynamic was not acquired in time,the gas fields development adjustment would not be made effectively.In this paper,a new method of calculating the dynamic reserves for abnormally high-pressured offshore gas fields early stage development has been put forward.First of all,the complete dynamic reserves prediction model was established with the use of material balance method.Secondly,in the process of model solving,the calculation model of effective compressibility coefficient was modified without laboratory experiment.Moreover,in order to improve the calculating precision of the early stage development dynamic reserves,the quality control method was established.Through the research in this paper,the prediction accuracy of dynamic reserves in offshore H gas field has been improved 57%,and the problem of large dynamic reserves prediction in early development of offshore abnormal high-pressure gas field has been overcome.This method only needs production and pressure data,without laboratory experiments,which provides a quantitative and operational new method to accurately calculate the dynamic reserves in abnormally high-pressured gas fields,and can guide the early stage development adjustment effectively.

关 键 词：动态储量计算模型 海上异常高压气藏 早期开发 有效压缩系数 质量控制方法 

分 类 号：TE5[石油与天然气工程—油气田开发工程]