随着低渗、超低渗油藏的开发,由于受到储层条件、注采井网、压裂工艺等多重限制,单一增加缝长来提高超低渗油藏产量效果不明显,常规压裂工艺改造难以实现该类油藏的有效开发。混合水体积压裂技术通过“大液量、高排量、低砂比”增加缝内净压力,有效扩大储层改造体积,从而提高措施增油能力,为有效提高单井产量提供了新思路、新方法。 With the development of low permeability and ultra-low permeability reservoirs, due to multiple constraints such as reservoir conditions, well patterning and fracturing technology, the effect of increasing the production of ultra-low permeability reservoirs by a single increase of seam length is not obvious. The conventional fracturing Process improvement difficult to achieve the effective development of such reservoirs. The mixed water volume fracturing technology can increase the net pressure in the seam through the “large liquid volume, high discharge and low sand ratio”, effectively expanding the reservoir reforming volume, thereby improving the ability to increase oil production, and providing an effective way to increase single-well production New ideas, new methods.