摘要
本文介绍了一种新型压裂液用交联剂——有机硼锆交联剂ＯＢＺ－１。该交联剂具有较强的耐温性及抗剪切性能，对地层的伤害较轻。
An organboroziconate complex of boron to zirconium ratio 40 is recommended as crosslinker OBZ 1 for plant gum hydrofracturing fluids. An experimental hydroxypropyl guar (HPG)/OBZ 1 gelled fluid has much higher heat and shear resistance than HPG/B 10 (organoborate complex) and HPG/SL 10 (organozirconate complex) gelled fluids do. HPG/OBZ 1 gel maintains viscosity 200 mPa s after being sheared at 170 s -1 and 140℃ over 2 hrs and has good filtrate loss properties. The damage to core permeability caused by broken HPG/OBZ 1 gel is much less than that by brocken HPG/SL 10 and is slightly higher than that by broken HPG/B 10 and HPG/borate gels. The crosslinking mechanizms are discussed.
出处
《油田化学》
CAS
CSCD
北大核心
1996年第3期210-212,218,共4页
Oilfield Chemistry
关键词
有机硼锆交联剂
植物胶水基冻胶
压裂液
Organoborozirconate Complexing Crosslinker, Laboratory Perfomance Evaluation, Aqueous Plant Gum Gelling Fracturing Fluids, Crosslinking Mechanizms
