示功图与油井供液能力定量化分析  

Indicator diagram and liquid supply capacity quantitative analysis of oil wells

作　　者：钟张起[1,2] 侯读杰[1] 张春梅[2] 王军[2] 侯风玉[2] 

机构地区：[1]中国地质大学(北京)能源学院,北京海淀100083 [2]中国石化中原油田分公司采油五厂

出　　处：《石油地质与工程》2014年第3期139-141,150,共3页Petroleum Geology and Engineering

基　　金："十二五"国家科技重大专项"东濮凹陷油气富集规律与增储领域"(2011ZX05006-004-07)

摘　　要：通过对实测示功图研究,确定了评价油井供液能力的3个参数:卸载冲程、卸载比和加卸比。卸载冲程和卸载比越大,供液能力越低;加卸比越大,供液能力越高。惯性载荷、振动载荷、气体和漏失4种因素对卸载冲程和卸载比影响较大,对加卸比影响较小。三个参数中加卸比是表征油井供液能力较好的指标,并根据加卸比的大小,把油井供液能力分为4级。Through the study of the measured indicator diagram,three parameters of liquid supply capacity of oil wells have been determined,the uninstalled stroke,unloading ratio and the loading-unloading ratio.The higher the uninstalled stroke and unloading ratio,the lower the fluid supply capacity.The higher the loading-unloading ratio,the higher the fluid supply capacity.Four kinds of factors,inertial load,vibration load,gas and leakage,have bigger influence on the uninstalled stroke and unloading ratio,smaller influence on the loading and unloading ratio.Among these three parameters,the loading-unloading ratio is an indicator to show good liquid supply capacity of oil wells.According to the size of loading-unloading ratio,the liquid supply capacity of oil wells can be divided into four grades.

关 键 词：示功图 抽油机井 供液能力 

分 类 号：TE355[石油与天然气工程—油气田开发工程]