摘要
气井产能评价的主要依据是现场试气求产录取到的产量及对应流压等原始生产资料,试气求产方式的选择影响现场录取的资料质量,进而影响对气井进行的产能评价结果。深层气井试气求产工作中经常遇到得不到产能方程和无阻流量的问题,有必要选择合理的试气求产方式,录取到合格的产能资料。根据不稳定渗流理论计算气井产量随生产时间变化的理论曲线,通过分析产量趋于稳定所需要的生产时间,给出气井稳定生产时间随渗透率关系曲线,进一步分析气井所采用的产能评价方法,进行现场试气求产方式选择。
The main basis of productivity evaluation for gas well is the production acquired by gas testing on-site and production,and primitive producing data corresponding flow pressure,mode selection for gas test influences field data quality,so as to affect evaluation results.Problems of productivity equation and the open-flow not being got are often encountered in job of gas testing and production for deep gas well,it is necessary to choose a rational gas testing to production requirementway,get the qualified production information.According to percolation theory unstable gas productionwith the production of the calculation time of the theoretical curve,by analyzing the required production time of the output to stabilize,the relationship curve of the stable production time for gaswell with permeability is given,the methods of evaluation used in gaswell production is further analyzed,and gas production test mode is selected on-site.
出处
《油气井测试》
2011年第6期12-14,73,共3页
Well Testing
关键词
产能评价
试气
求产方式
不稳定IPR曲线
productivity evaluation,test gas,seeking production methods,unstable IPR curve
