随着二连探区老井开采难度的加大,油气层保护问题越来越受到人们的重视。二连地区的老井经过强化开采后,地层条件变得十分复杂。为减少压裂液进入地层产生的地层损害,有必要优选出与地层及地层流体有较好配伍性的压裂液配方。 压裂液优化设计 1,稠化剂的优选 稠化剂的性能好坏不仅直接关系到压裂液的质量,而且是造成地层损害的一个主要因素。一种好的稠化剂应具有水不溶物和残渣少、流变性能好及交联比取值范围宽等优点。现在最常用的稠化剂是植 With the difficulty of mining older wells in Erlian exploration area, the protection of oil and gas reservoirs has drawn more and more attention. The formation conditions have become more complicated after the old wells in the Erlian area have been intensively mined. In order to reduce the formation damage caused by the fracturing fluid entering the formation, it is necessary to optimize the fracturing fluid formulation that has good compatibility with the formation and formation fluid. Fracturing fluid optimization design 1, the preferred thickening agent The performance of the thickening agent is not only directly related to the quality of fracturing fluid, but also caused a major factor in formation damage. A good thickener should have water insoluble and less residue, rheological properties and cross-linking than a wide range of advantages. The most commonly used thickener is now planting