CAJ | 학술논문

以天然材料与乙烯基单体进行接枝共聚合成了超高密度钻井液用分散剂JZ-1，对相对分子质量调节剂、单体AM PS用量和天然材料与乙烯基单体配比等因素对分散剂性能的影响进行了考察。通过IR对共聚物进行了红外表征，借助热分析对共聚物进行了热稳定性评价，利用Zeta电位仪对重晶石表面电位进行了考察，并对其在钻井液中的分散性能进行了室内评价。研究结果表明，分散剂在不同类型的基浆中均表现出良好的分散性能，并且在密度为2．8 g/cm 3的钻井液中加入JZ-1，可使体系漏斗黏度由282 s降低至130 s ，显著地提高了钻井液的流变性和沉降稳定性。
이천연재료여을희기단체진행접지공취합성료초고밀도찬정액용분산제JZ-1，대상대분자질량조절제、단체AM PS용량화천연재료여을희기단체배비등인소대분산제성능적영향진행료고찰。통과IR대공취물진행료홍외표정，차조열분석대공취물진행료열은정성평개，이용Zeta전위의대중정석표면전위진행료고찰，병대기재찬정액중적분산성능진행료실내평개。연구결과표명，분산제재불동류형적기장중균표현출량호적분산성능，병차재밀도위2．8 g/cm 3적찬정액중가입JZ-1，가사체계루두점도유282 s강저지130 s ，현저지제고료찬정액적류변성화침강은정성。
Ultra-high density drilling fluid dispersant JZ-1 was synthesized by graft copolymer-ization of natural materials and vinyl monomer . The effects of molecular weight regulator , AMPS and raw materials ratio on the dispersant properties were studied .Copolymerization was characterized with IR .Thermal stability of copolymer was measured by thermal analysis .Barite surface potential was studied by Zeta potential instrument .The mud properties of copolymer as dispersant for drilling fluids were evaluated in laboratory .The experimental results showed that funnel viscosity decreased from 282 s to 130 s when 2% JZ-1 were added to the drilling fluid with the density of 2 .8 g/cm 3 ,and the rheology behavior and sedimentation stability of drilling fluid were improved significantly .