抽油井油套管环空压力梯度与套管放气量的关系  

INFLUENCE OF CASING EXHAUSTING RATE ON THE ANNULAR PRESSURE GRADIENT IN THE ROD PUMPED WELL

作　　者：向瑜章[1] 丁明华[1] 滕卫卫[1] 方平[1] 

机构地区：[1]新疆油田分公司采油二厂

出　　处：《钻采工艺》2005年第6期77-78,共2页Drilling & Production Technology

摘　　要：沉没压力是抽油机井设计的关键参数,为了计算套管放气井的沉没压力,必须掌握环空压力梯度的影响因素,通过现场测试发现抽油机井的环空压力梯度在一定条件下可近似为常数,以此为依据进一步推导出八区P2W1油藏环空压力梯度与套管出气量的关系曲线及关系式。该关系对指导抽油机诊断与参数设计有重要的意义。Submergence pressure is the key parameter for rod pumped welldesigning In order to calculate submergence pressure of casing exhausting well, it is very important to un derstand influencing factors of annular pressure gradient Through field test, pressure gradient of the liquid is a con slant for rod pumped well under certain condition Conse quently, the dependence and relational expression describing the pressure gradient and easing exhausting rate is gained, which has great significance for the pumping unit diagnostic check and parameter design.

关 键 词：套管出气量 环空压力梯度 沉没压力 

分 类 号：TE933[石油与天然气工程—石油机械设备]