摘要
在水平油气井完井投产时,需要及时进行多点或单点产能测试,确定水平井绝对无阻流量和产量与井底流压的IPR关系曲线。考虑到产量的需求和成本的节省,在水平井投产时,往往只进行一个工作制度的单点测试。委内瑞拉JUNIN油田4区是一个浅层层状重质油藏,目前投产的7口水平油井均进行了单点产能测试。采用陈氏于2015年提出的水平油井无因次IPR方程,对7口井的绝对无阻流量和IPR曲线进行了评价,取得较好效果,为该油田水平油井的挖潜提供了依据。
During the completion of horizontal oil and gas wells,productivity test with single-spot or multi-spot should be taken in time,in order to identify the IPR curve about the absolute the open flow capacity( AOF) and productivity and bottom hole flowing pressure. Considering the demands of productivity and cost saving,only single-spot tests are taken after the horizontal wells put into production. The joint project of JUNIN-4 is a shallow stratiform heavy oil reservoir operated by China and Venezuela and the single-spot tests have all been carried out to the 7 operated horizontal wells at present. By using the dimensionless IPR formula of horizontal wells put forward by Chen in 2015,7 wells on their absolute open flow potential and IPR curves are evaluated to gain a reasonable results,which provides a basis for the horizontal well potential capacity exploitation.
出处
《油气井测试》
2017年第1期16-18,共3页
Well Testing
关键词
重质油藏
水平井
单点测试
产能评价
heavy oil reservoir
horizontal well
single-spot test
productivity evaluation
