钻井液与完井液2017，Vol.34Issue(2)：39-44,6.DOI:10.3969/j.issn.1001-5620.2017.02.007
抗高温超分子降滤失剂的合成及性能评价
Synthesis and Evaluation of a High Temperature AMPS/AM/NVP Copolymer Filter Loss Reducer
摘要
Abstract
Filter loss reducers presently in use had poor stability and filtration control ability in drilling deep and ultra-deep wells. To overcome these problems, a terpolymer filter loss reducer has been synthesized in laboratory with 2-acrylamido-2-methylpropane sulfonic acid (AMPS), acrylamide (AM), and N-vinyl pyrrolidone (NVP). The optimum synthesis conditions were as follows: molar ratio of AM:AMPS:NVP= 6:3:1, concentration of initiator = 0.2%, concentrations of the monomers used was 1.5%, respectively, reaction temperature = 50 ℃, and the reaction time = 4 h. Structure analysis of the synthesized product with IR spectroscopy showed that it was a terpolymer, and TEM analysis showed that the synthesized product formed an ordered space network structure in water solution. In a 4% fresh water base drilling fluid, the high temperature stability of the synthesized filter loss reducer was remarkably better than that of PAC-LV; the synthesized filter loss reducer functioned effectively at 180 ℃.关键词
降滤失剂/抗高温/超分子聚合物/水基钻井液Key words
Filter loss reducer/High temperature resistant/Supermolecular copolymer/Water base drilling fluid分类
能源科技引用本文复制引用
蒋官澄,祁由荣,安玉秀,葛庆颖,张领宇..抗高温超分子降滤失剂的合成及性能评价[J].钻井液与完井液,2017,34(2):39-44,6.基金项目
中国石油化工联合基金重点支持项目"页岩气钻探中的井壁稳定及高效钻完井基础研究"(U1262201) （U1262201）
中国石油天然气集团公司基础研究重要项目"井筒工作液基础理论关键技术研究"(2014A-4212) （2014A-4212）
国家自然科学创新研究群体项目"复杂油气井钻井与完井基础研究"(51221003) （51221003）
中石油集团公司项目"重大钻井技术集成配套与装备现场试验 -仿生钻井液新技术与新体系研发与应用"(2014D-4407). （2014D-4407）
