CAJ | 학술논문

研究了油基钻井液组分对其沉降稳定性能的影响。结果表明，基液类型、油水体积比、内相盐种类、加重材料粒径大小和种类会对油基钻井液的沉降稳定性能产生影响。静态沉降条件下基液黏度越大，体系油水体积比越小，体系沉降稳定性能越好。以 NH4 Ca(NO3)3为内相的油基钻井液体系沉降稳定性能优于甲酸盐、氯化钙和氯化钠内相钻井液体系。加重材料颗粒的粒径越小，沉降稳定性能越好，动态剪切和静态沉降条件下 Mn3 O4为加重材料的油基钻井液沉降稳定性能都优于其他加重材料体系。
연구료유기찬정액조분대기침강은정성능적영향。결과표명，기액류형、유수체적비、내상염충류、가중재료립경대소화충류회대유기찬정액적침강은정성능산생영향。정태침강조건하기액점도월대，체계유수체적비월소，체계침강은정성능월호。이 NH4 Ca(NO3)3위내상적유기찬정액체계침강은정성능우우갑산염、록화개화록화납내상찬정액체계。가중재료과립적립경월소，침강은정성능월호，동태전절화정태침강조건하 Mn3 O4위가중재료적유기찬정액침강은정성능도우우기타가중재료체계。
The effect of the drilling fluid components on sag performance was studied.Experimental results show that the type of base oil,oil-water ratio,type of internal phase,particle size and type of weighting material have great effect on the sag stability of the system.The greater the viscosity of the base fluid,the lower the oil-water ratio,the better the sag performance is.The oil-based drilling fluid system with NH4 Ca(NO3 )3 as the internal phase shows better sag stability after static aging than the system with other internal phase such as formate,calcium chloride and sodium chloride.The smaller the particle size,the better the sag stability is.The oil-based drilling fluid system with Mn3 O4 as the weigh material shows the best settling stability under static and shear conditions.