CAJ | 학술논문

油基钻井液与水基钻井液相比，具有显著的润滑和井壁稳定特性，是国内外复杂井、大斜度井、大位移井和高温深井钻井作业的首选钻井液体系。研究和评价了针对不同温度的油基钻井液的流变性调控技术。对于中低温条件，可使用提切剂 HSV-4来保障油基钻井液的悬浮携岩性能；对于高温条件，可使用高温流变稳定剂 MOHST 与提切剂HSV-4配合来保障油基钻井液的流变性稳定。为高温复杂井油基钻井液作业预防岩屑沉降、增强携岩、保障清洁井眼提供了可靠的钻井液技术支持，现场结合工程作业措施，必将有助于减少现场复杂，加强钻井安全。
유기찬정액여수기찬정액상비，구유현저적윤활화정벽은정특성，시국내외복잡정、대사도정、대위이정화고온심정찬정작업적수선찬정액체계。연구화평개료침대불동온도적유기찬정액적류변성조공기술。대우중저온조건，가사용제절제 HSV-4래보장유기찬정액적현부휴암성능；대우고온조건，가사용고온류변은정제 MOHST 여제절제HSV-4배합래보장유기찬정액적류변성은정。위고온복잡정유기찬정액작업예방암설침강、증강휴암、보장청길정안제공료가고적찬정액기술지지，현장결합공정작업조시，필장유조우감소현장복잡，가강찬정안전。
Compared with water-based drilling fluid,oil-based drilling fluid shows the characteristics of sig-nificant lubricity and borehole wall stability.It is a preferred drilling fluid system for drilling operation of do-mestic and international complex wells,highly deviated wells,large displacement wells and high temperature deep wells.The rheological control technology of oil-based drilling fluid at different temperatures are researched and evaluated.For common or low temperature conditions,we can use shear strength improving agent HSV-4 to improve the suspension ability of oil-based drilling fluid.For high temperature conditions,we can use MOHST as a high temperature rheological stabilizer combined with HSV-4 to safeguard high temperature rheology and stability of oil-based drilling fluid.The results provide a strong reliable technical support to prevent cuttings sedimentation,enhance cuttings carrying and ensure hole cleaning of drilling operation of oil-based drilling fluid for high temperature complex wells.Combined with engineering measures,the technologies will help to reduce the complex problems and improve the security of drilling.