【摘要】 研究了井口回压对抽油井泵效的影响。计算泵效时考虑了抽油杆-油管的弹性伸缩、抽油泵漏失、抽油泵充满程度等因素,利用编制的抽油井泵效与井口回压关系计算程序,对葡北的11口油井进行了计算。结果表明:葡北地区泵效与井口回压基本成线性关系,井口回压每增加1Mpa,泵效降低1%~2%。更多还原

【Abstract】 The effect of wellhead back pressure on POWP pump efficiency is studied.The elastica collapsing of pump rod-oil tube,pump leaking,pump fluid level were examined on calculating the pump efficiency.By using the calculator program of pump efficiency and wellhead back pressure,the 11 wells of PU-BEI can be calculated.It was found that the pump efficiency and wellhead back pressure could reach linear relationship,the pump efficiency declines 1%～2% by wellhead back pressure increases 1 MPa.更多还原