海上油田定向井压裂投产大多采用点射,即在储层中部一小段内射孔,然后压裂投产,通过理论研究以及实际生产井生产动态研究均表明,这种投产方式会严重影响井的产能,将压裂井段补孔后产能会增加,且当倾斜角越大,产能增加的幅度也就越大。同时,裂缝外射孔区域表皮应尽可能小,否则会减弱倾斜角对产能的影响,导致补孔效果降低。 In the offshore oilfield, directional fracturing is mostly carried out by point injection, that is, a small perforation in the middle part of the reservoir and then fracturing and commissioning are conducted. Theoretical studies and actual production well dynamics indicate that this mode of operation will seriously affect well productivity, The production capacity will increase after the fracturing section completes the hole, and as the inclination angle increases, the rate of increase of capacity will also be larger. At the same time, the outer skin of the cracked perforation area should be as small as possible, otherwise it will weaken the influence of the lean angle on the production capacity, resulting in the reduction of the fill hole effect.