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国外压裂技术的发展十分迅速。以美国为例:道威尔公司的C501型压裂拖车最高压力已达到155MPa;压裂液品种有5大类30多种,适应井深超过7000m,温度190 C;哈利伯顿公司混砂车每分钟可以混合16m~3液体和6t砂子,可使5种添加剂以0.13～24kg/m~3的比例连续混合;支撑剂可适应各种深度的地层,陶粒支撑剂强度可适应7000m以上深井压裂;可压裂渗透率低达0.05×10~(-3)～0.005×10~(-3)μm:的储气层;气井压裂的最大处理半径达762m;克利公司用封堵球进行多级压裂,最多一次达到52级,用液量3940m~3,用砂量达419t。该公司
The development of foreign fracturing technology is very rapid. In the United States as an example: Dow Corning C501 fracturing trailer maximum pressure has reached 155MPa; fracturing fluid species has more than 30 varieties in 5 categories, to adapt to the well depth of more than 7000m, temperature 190 C; Haliburton blender Mixing 16m ~ 3 liquid and 6t sand per minute, the five kinds of additives can be continuously mixed in the ratio of 0.13 ~ 24kg / m ~ 3. The proppant can adapt to the strata of various depths. The strength of the proppant can be adapted to the depth of 7000m Fracturing; fracturing permeability as low as 0.05 × 10 -3 ~ 0.005 × 10 -3 m: reservoir; the maximum processing radius of gas well fracturing up to 762m; Multi-stage fracturing, up to 52 at a time, the amount of liquid 3940m ~ 3, sand amounted to 419t. The company