| 高含CO2气井产能计算新方法 |
| |
| 引用本文： | 严谨,刘传喜.高含CO2气井产能计算新方法[J].石油与天然气地质,2011,32(5):787-791. |
| |
| 作者姓名： | 严谨 刘传喜 |
| |
| 作者单位： | 中国石化石油勘探开发研究院,北京,100083 |
| |
| 基金项目： | 中国石化科技攻关项目(P09044) |
| |
| 摘 要： | 松南火山岩气藏高含CO2,这种气体的存在对天然气的高压物性产生很大影响,使得气井产能预测与实际相差较大。在高含CO2气体高压物性分析（PVT）实验的基础上,研究了温度、压力和CO2含量对天然气高压物性参数的影响规律,建立了不同CO2含量下天然气粘度和偏差因子与压力的相关关系,并结合气体渗流理论建立了考虑高含CO2天然气高压物性变化的产能预测新模型。实例计算表明:①气井产能随着CO2含量的增高而降低;②当CO2含量大于20%时,气井产能评价必须考虑μZ值（天然气粘度与偏差因子的乘积）变化的影响;③开发中后期可以忽略CO2含量对气井产能的影响。新的产能计算方法能反映CO2含量对产能计算的影响,精确度更高,对于高含CO2天然气田的产能评价和生产制度的制定具有重要的指导意义。
|
| 关 键 词： | 产能 气井 CO2含量 天然气 松辽盆地 |
A new method of productivity prediction for high CO_2-content gas wells |
| |
| Yan Jin,Liu Chuanxi.A new method of productivity prediction for high CO_2-content gas wells[J].Oil & Gas Geology,2011,32(5):787-791. |
| |
| Authors: | Yan Jin Liu Chuanxi |
| |
| Affiliation: | Yan Jin and Liu Chuanxi (SINOPEC Petroleum Exploration and Production Research Institute,Beijing 100083,China) |
| |
| Abstract: | Productivity of gas wells in Songnan volcanic gas reservoir is difficult to predict as high CO_2 content has great influences on PVT of natural gas,resulting in large difference between the measured and predicted productivity. Based on laboratory experiments,this paper studied the effects of temperature,pressure and CO_2 content on PVT of gas with high CO_2 content and established the relational expressions of gas viscosity and Z-facto to pressure for gas with different CO_2 contents.A new prediction model ... |
| |
| Keywords: | productivity gas well CO_2 content natural gas Songliao Basin |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
