确定自然关井层产量的一种方法  

A Method to Determine Production Rate of Natural Shut-in Zones

作　　者：白士杰[1] 高萍[1] 许显志[1] 

机构地区：[1]大庆石油管理局试油试采公司地质分公司,黑龙江省163412

出　　处：《油气井测试》1998年第3期38-40,76-77,共5页Well Testing

摘　　要：在大庆外围探井“三低”油层测试过程中，靠油藏本身压力不能把原油举升到地面，常出现一种趋近自然关井的情况。自然关并层在井筒中流动分两种状态：一种为低于饱和压力的流动；一种为高于饱和压力的流动。利用流动压力与时间数据绘制半对数曲线，确定饱和压力点，并根据流压与饱和压力相等时，上述两种情况下原油产量对流压导数相等的原理确定油井产量。During the test of low pressure,low permeability and low flow rate formations in the exploration wells of Daqing periphery,the reservoir pressure itself can not lift oil to the surface, it often happens that the well approaches natural Shut-in,the flow in wellbore of natural Shut-in zones has two states,one is the flow below bubble point pressure,the other is the flow above bubble point pressure. The semi-log plot is prepared with flowing pressure versus time to determine bubble point pressure,the production rate of oil well can be fixed based on the principle that,when flowing pressure is equal to butble point pressure and under the condition of above two states,the derivatives of oil rate versus flowing pressure are equal.

关 键 词：续流 饱和压力 采油指数 产量计算 

分 类 号：TE3[石油与天然气工程—油气田开发工程]