普光气田暂堵转向酸压工艺现场适应性分析

Analysis of Site Adaptability for Temporary Plugged Acidification Process in Puguang Gas Field

普光气田气层埋藏深、井段长(160-557.9m),投产采用一体化管柱全井段射开笼统酸压,受储层非均质性影响,生产测井产剖测试结果显示部分层段未动用或贡献率低,在不动管柱条件下常规酸压工艺技术针对性差,为纵向开启新层,改善产气剖面;横向均匀改造,提高储层动用程度,以"可降解暂堵剂"、"自转向清洁酸"为核心,开展转向酸压技术研究并开展现场试验,通过现场效果分析,取得了一定的效果,为国内外类似储层提供了宝贵的现场经验。

Puguang gas field reservoir buried depth,long(160-557.9-m),the well production using the integration string hole perforated general acid,affected by the reservoir heterogeneity,production logging production cutting test results show that the unused part layer or contribution rate is low,under the condition of fixed string conventional acid fracturing technology focused is poor,for the longitudinal open a new layer,improve gas producing profile;Transverse homogeneous transformation,improve the reservoir producing extent,with "degradable temporary plugging agent", "to clean acid" as the core,the acid fracturing technology to study and field test,through the effect analysis,has obtained the certain effect,for the domestic and foreign similar reservoir provided valuable experience on site.