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针对塔中地区碳酸盐岩裂缝性地层特点及ＭＳＦ正电胶水基钻井液稳定性差，泥饼厚，粘附系数大等缺点，研制出一套适合于该地区的新型钻井液体系——ＪＨＨ。通过室内的性能评价表明，该体系流变性好；抗劣土侵污能力强；在１３０℃下热滚１２ｈ的回收率达８７．３％；渗透率恢复值大于８５％，储层保护好；泥饼粘附系数＜０．２，润滑性好；单剂及体系荧光级小于３．０级，满足打探井要求；单剂及钻井液体系的Ｅｃ５０值大于３００００ｍｇ／Ｌ，无污染，因而可满足环境保护要求。该体系已在塔中某井现场试验，结果性能稳定，维护方便，有良好的推广应用前景。
Aiming at the characteristics of carbonate fractured strata in Tazhong area and the poor stability of MSF positive-electrode cement-based drilling fluid, thick mud cake and large adhesion coefficient, a set of new drilling fluid system suitable for this area was developed - JHH . The indoor performance evaluation shows that the system has good rheological properties, strong anti-soil invasion ability, 87.3% reheating at 130 ℃ for 12h, more than 85% permeability recovery and good reservoir protection. Mud cake adhesion coefficient <0.2, good lubricity; single agent and system fluorescence level less than 3.0, to meet the exploration drilling requirements; single agent and drilling fluid system Ec50 value of more than 30000mg / L, so pollution Meet environmental protection requirements. The system has been in the tower in a well field test, the results of stable performance, easy maintenance, good prospects for the promotion.