疏松砂岩油藏适度出砂技术完井方式优选

OPTIMIZATION OF WELL COMPLETION METHOD FOR REASONABLE SAND CONTROL IN LOOSE SAND RESERVOIR

疏松砂岩油藏开采过程中的油井出砂是影响这类油藏开发的突出问题,目前采取的措施就是采用有效完井方式将砂完全防住,这样做由于限制了生产压差,不能充分发挥油井的生产能力,防砂措施的存在导致附加表皮增加,降低油井的产能,一旦防砂失败整个油井就要关井停产。针对这样的问题,提出了适度出砂开采技术,在此技术下优选合适的完井防砂方式,优化防砂参数就至关重要,为疏松砂岩油藏应用适度出砂技术提供依据。

In the performance history of loose sand reservoir,sand production is the projecting problem of this reservoir,at the moment use effective well completion method to prevent sand out completely,do this by limiting the drawdown pressure,can not display production capacity of oil well,sand control leads to increasing additional skin,reducing production of oil well,but once sand control fails,oil well will shut in,in view of such problems,put forward reasonable sand control technology,use this technology to optimize well completion sand control method,optimize sand control parameter,provide the basis for using reasonable sand control in loose sand reservoir.