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 ％ 。 In the process of water injection and gas recovery in a gas field, single and mixed transport of two kinds of formation water, ie, Sinian and Permian systems, produces CaCO 3, Mg 3 O 3 and Ba C O 3 scale, especially BaSO 4 scale The current status of simulated formation water was evaluated on nine commonly used scale inhibitors and two self-contained scale inhibitors. Three kinds of antiscalant W S- 213 A, H E D P and A T M P, which have good effect on single-input and mixed-transport of two kinds of formation water, were screened out. Three orthogonal methods Scale anti-scaling test conditions optimization, obtained at the same time meet the two kinds of formation water single input and mixed anti-scaling anti-scaling of the better experimental conditions. That anti-scaling agent W S- 213 A selection, the concentration of 30m g / l, P H = 8. 0. Under this experimental condition, the single-scale anti-scaling rate of the two kinds of formation water can reach 90%, and the mixed anti-scaling rate can reach 75%.