摘要
用有机钛、胺基醇和乳酸合成了有机钛交联剂 Ｐ Ｃ５００ ，研究了羟丙基瓜尔胶／ 有机钛 Ｐ Ｃ５００ 水基冻胶压裂液的配方，得到了可耐温１００ ℃以上，抗剪切，低残渣，交联时间可调的压裂液。在配方研究中特别考察了冻胶稳定剂、ｐ Ｈ调节剂的作用。
A titanoranic crosslinker, PC 500, is prepared from a titanorganic compound, an aminoalcohol, and malonic acid. With PC 500, a formulation of hydroxypropyl guar based aqueous hydrofracturing fluid is optimized on the basis of screening ingredients, particularly oxygen scavenger Na 2S 2O 3 and pH adjasting agent fumanic acid +NaHCO 3. The high viscosity (～90 mPa·s) of a formulated fluid maintains unchanging at least in 2 hrs at 100℃ and shear rate 170 1/s. With or without a gel breaker the gelled fluid breaks down at 100—150℃ in 24—30 hrs with small amount of solid residue left. The fluid is developed for high temperature and low permeability reservoirs.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第3期224-227,共4页
Oilfield Chemistry
关键词
有机钛
交联剂
羟丙基瓜尔胶
压裂液
配方
油层
Titanorganic Crosslinker
Hydroxypropyl Guar/Titanium Aqueous Gelling Hydrofracturing Fluid
Formulations
