摘要
本文报道了一种耐高温抗盐的有机钛交联水解聚丙烯腈钠冻胶堵剂。该堵剂在 １５０ ℃放置１８０ 天后粘度仍高达１００ Ｐａ·ｓ。用矿化度 １ ．２ ×１０５ ｍｇ／ Ｌ 的盐水配制的堵剂，其强度与用清水配制的堵剂相差不大。该堵剂产品为粉剂，搅拌２０ —３０ 分钟即可溶解。介绍了该堵剂在油井堵水和水井调剖中的应用情况。
The titled system is an aqueous solution of Na HPAN(3-15%), Chromoorganic crosslinker XHS(0.05-2%) and a thermal stabilizer (0.03-0.5%). All its components are mixed together to give a readily soluble powder. The prepared solution has viscosity 30—90 mPa·s(ambient temp, 6.4 1/s) and forms gel of viscosity 40—180 Pa·s(90℃,2.7 1/s) in 4—24 hrs at 90—150℃. The gel is stable at ≤150℃ at least in 180 days. The solution can be prepared with brines of TDS up to 1.26×10 5 ppm as well as fresh water. The system is selective in some extent. The uses of this system for water shutoff in 4 production wells and for profile modification in 2 water injection wells at Gudong Oil Fields, Shengli, are described briefly.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第3期209-211,共3页
Oilfield Chemistry
关键词
水解
聚丙烯腈钠
有机钛
冻胶
堵水
调剖剂
油田
Sodium Salt of Hydrolized Polyacrylonitrile/Chromoorganic Aqueous Gelling System
Water Shutoff/Profile Modification Agent
Thermal Resistance
Salts Tolerence
Water Shutoff/Profile Modification
Gudong Oil Fields in Shengli
