CAJ | 학술논문

为了减少钻遇压力敏感或安全压力窗口狭窄等复杂地层所产生的非生产时间,提出了对井底压力进行精确控制的自适应控制压力钻井的技术思路.探讨了控压钻井技术的井底压力控制机理,集成了所需关键技术装备,绘制了自适应控压钻井技术的关键技术路线图.系统地介绍了地层压力随钻检测技术、随钻井底环空压力测量、钻井液连续循环装置、井口回压检测与控制、数据传输技术的国内外技术现状.最后提出建议:国内相关单位应联合攻关,尽快研发具有自主知识产权的自适应控压钻井技术及相关装备,缩短与国际先进钻井技术问的差距.
위료감소찬우압력민감혹안전압력창구협착등복잡지층소산생적비생산시간,제출료대정저압력진행정학공제적자괄응공제압력찬정적기술사로.탐토료공압찬정기술적정저압력공제궤리,집성료소수관건기술장비,회제료자괄응공압찬정기술적관건기술로선도.계통지개소료지층압력수찬검측기술、수찬정저배공압력측량、찬정액련속순배장치、정구회압검측여공제、수거전수기술적국내외기술현상.최후제출건의:국내상관단위응연합공관,진쾌연발구유자주지식산권적자괄응공압찬정기술급상관장비,축단여국제선진찬정기술문적차거.
To reduce non-productive time (NPT) caused by pressure sensitivity and narrow safe pressure window, the adap-tive managed pressure drilling is recommended to precisely control downhole pressure. Based on the analysis of downhole pres-sure controlling mechanism and the equipments for managed pressure drilling, key technologies to realize the adaptive managed pressure drilling are concluded. A review is made herein on the status of many techniques at home and abroad such as formation pressure measurement while drilling, annulus bottom pressure measurement while drilling, continuous circulation system, wellhead back-pressure monitoring and control, and data transmission. It is suggested that drilling companies and research de-partments should unite to develop the adaptive managed pressure drilling technology and the related equipments with independ-ent intellectual rights, thus to narrow the gap between domestic and world drilling technology.