洛带J3p气藏水力压裂技术研究与应用

洛带气田J3p气藏具有低温、低压、低渗、水敏性和非均质性强等地质特征，单井自然产能低，压后排液困难，给压裂改造带来很大难度。通过对压裂液和压裂工艺技术的研究，形成了两套有针对性的压裂液和“超低前置液量、小排量、小砂量、高砂比、造中缝、强化返排”为特色的压裂工艺，较成功地解决了洛带J3p气藏压裂增产的技术难题。

Study and Application of Hydraulic Fracturing Technique in Luodal J3p Gas Reservoir

In this paper,at first,the geologic characteristics in LuoDai J3p gas reservoirs including lower temperate,pressure and permeability,stronger water affinity and heterogeneity,lower single well natural producing energy and harder drainage after fracturing were introduced.Then,through the studying on fracture fluid and fracturing technology,two pertinent fracture fluids and fracturing technology charactering by lower drainage,lower sand production rate and higher sand proportion combing with producing middle fracture and improving drainage return are formed.Finally,applying these technologies to J3p gas reservoirs,the difficult technique problems in fracturing can be solved successfully.