摘要
针对某气田注水采气过程中，震旦系和二迭系两种地层水单输、混输产生 Ｃａ Ｃ Ｏ３ 、 Ｍｇ Ｃ Ｏ３ 、 Ｂａ Ｃ Ｏ３ 垢，特别是混输中产生 Ｂａ Ｓ Ｏ４ 垢的现状，模拟地层水，对９ 种油田常用防垢剂和２ 种自制防垢剂进行了评价。从中筛选出对两种地层水单输和混输均有较好效果的３ 种防垢剂 Ｗ Ｓ－ ２１３ Ａ、 Ｈ Ｅ Ｄ Ｐ和 Ａ Ｔ Ｍ Ｐ；再用正交试验法对３ 种防垢剂的防垢试验条件进行优化，得出同时满足两种地层水单输和混输防垢的较优实验条件。即防垢剂选用 Ｗ Ｓ－ ２１３ Ａ，浓度３０ｍ ｇ／ｌ， Ｐ Ｈ＝ ８ ．０ 。在此实验条件下，对两种地层水单输防垢率可达９０ ％ ，混输防垢率可达７５ ％ 。
The tendency of causing scales of single-injection water or mixed-injection water in a certain gas field of China was predicted. Evidently, the CaCO 3, MgCO 3 and BaCO 3 scale could be produced in single-injection water system, and BaSO 4 scale in mixed-injection water system. Simulating formation water, nine kinds of regular scale inhibitors in oilfield and two self-developed ones were evaluated and screened WS-213A, HEDP AND ATMP inhibitors with good inhibiting effect. By orthomutual experiments, WS-213A and it optimum conditions of antiscale (pH=8.0,concentration=30mg/l) were chosen. The results of comparision showed that WS-213A has high antiscale efficiency for CaCO 3, MgCO 3, BaCO 3 scales (antiscale rate orer 90%), especially it could restrain BaSO 4 scale(antiscale rate over 75%).
出处
《石油与天然气化工》
CAS
CSCD
北大核心
1999年第3期225-227,共3页
Chemical engineering of oil & gas
