用系统思想分析油井的增产途径

Analysis on Ways to Stimulate the Oil Well by Using Systematic Thinking

利用油井是一个过程生产系统的思想 ,建立了抽油井从供油层边界直至井口的系统模型 ;以某油田S区块 1 7口抽油井为例进行了油井动态模拟 ,并对模拟结果进行了综合分析。将 1 7口井分为泵效较低、完井段造成的附加压降大、近井地带地层污染造成的压差较大及总的附加压降不大等 4种情况 ,针对不同情况 ,分别提出了增产措施。

On the basis of the concept that an oil well is a process production system, a systematic model is established, which involves the behavior of a pumping well flowing from drainage boundary to wellhead A dynamic simulation is carried out on 17 pumping wells in S block of Zhongyuan oilfield, and the result obtained is analyzed comprehensively The wells mentioned are classified into four categories: lower pumping efficiency, large additional pressure resulted from a completion interval, large pressure difference caused by formation damage at near wellbore and a less total additional pressure draw down Appropriate stimulations for different situations are proposed