摘要
中国使用的降失水剂普遍存在抗高温、抗盐能力差的问题,因此采用水溶液自由基聚合法制备出了油井水泥抗高温、抗盐降失水剂DRF-100L。DRF-100L为多元共聚物,抗高温能力达到180℃;能将淡水及盐水水泥浆的API失水量控制在100 mL以内;对水泥水化影响较小,对水泥石的强度发展无不良影响;以DRF-100L为主剂的常规密度水泥浆及高密度水泥浆均具有良好的综合性能,能够满足深井、超深井、复杂地层固井的需要。
Cement fluid loss additives used domestic have poor performances, so a salt-resisting and thermo-stable fluid loss additive DRF-100L is synthetised by free radical polymerization in aqueous solution. It is copolymer and can be used at 180 ℃. The experimental results show that the API fluid loss both in fresh water and salt water cement slurry are under 100mL and it has little effect on hydration and development of set cement. So DRF-100L can be used in deep and ultra-deep wells cementing operation.
出处
《钻井液与完井液》
CAS
2011年第2期55-57,99,共3页
Drilling Fluid & Completion Fluid
关键词
降失水剂
抗高温
抗盐
水泥浆性能
固井
固井质量
Fliud loss additive
Thermo-stability
Salt-resisting
Cement slurry properties
Cementing
Cementing quality
