摘要
讨论了暂堵剂的配制和影响因素，得到暂堵剂的配方为：成胶剂聚丙烯酰胺的分子量为３００万左右，水解度为５％～１５％，加量为０．６％～１．０％；螯合物ＬＱ１或ＬＱ２的加量为４％～８％；破胶剂过氧化叔了基的加量为０～０．０５％。通过对其性能进行评价，发现该暂堵剂具有良好的堵塞效果和耐碱性、抗盐性，且地面粘度低，对地层伤害小。
The paper discusses the preparation of temporary blocking agent and its influence factors, the resultant formulation of temporary blocking agent is: PHP with molecular weight of about 3, 000, 000, hydrolytic degree of 5 % ～ 15%,and an amount of application of 0. 6 % ～ 1. 0% ;the amount of application of chelate (LQ1 or LQ2) is 4 % ～8 %; and that of gel breaker(peroxide tert-butyl)being 0～0.05 %. The assessment of the properties shows that the temporary blocking agent possesses high blockage effect, strong salt--resistant and alkali-- resistant ability, low ground viscosity, and low formation damage.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
1996年第1期34-37,共4页
Chemical engineering of oil & gas
关键词
堵水剂
破胶剂
螯合
交联
油井
暂堵剂
water shutoff agent
gel breaker
chelation
delay
crosslinking
core test
