萨中开发区地层脱气影响流压界限研究

大庆萨中油田目前已进入高含水后期,通过放大生产压差来满足体液稳产的需要,同时可以避免油井生产压差过大,对井底流压造成偏低,是的油层严重脱气,对单井和区块的产能有影响,因而通过研究区块和单井的合理流压界限,平衡采油速度、提高开发效果是非常有必要的。在研究萨中东区各油井生产动态基础上,通过地质统计学和油藏工程、渗流力学等方法,来确定该区块的合理流压界限,通过计算对比与实际应用发现效果良好,同时该技术的研究方法对同类油田的研究具有一定的指导和借鉴意义。

Pressure Limit Sazhong Zone Strata Stream Degassing Effects

Sazhong oilfield has entered into the late stage of high water cut, so the production pressure differential is increased to meet the need of stable production, but when the production pressure differential is excessive, the bottom hole flowing pressure will become low, which can cause serious degassing of the oil layer to affect the production of single well and the block, so it is very necessary to study reasonable extent and limit of single well flowing pressure for balancing recovery rate and improving the development effect. In the paper, based on dynamic production data of oil wells in middle-east block of Sazhong oilfield, by geostatistics and reservoir engineering, seepage mechanics and other methods, the reasonable flow pressure boundary of the block was determined.