학술논문
集成橇装控压钻井系统在C909井的应用 / Integrated Skid-Mounted Control-Pressure Drilling System and Its Application in Well C909
Document Type
Academic Journal
Author
Source
钻采工艺 / Drilling & Production Technology. 46(5):162-166
Subject
Language
Chinese
ISSN
1006-768X
Abstract
通过对精细控压钻井系统进行精简、集成,形成集成橇装控压钻井系统.该系统保持了实现精细控压作业的核心技术及装备,包括旋转控制头、自动节流系统、质量流量系统、中控软件计算系统等.通过设备的高度集成、配置优化和算法改进,解决了因设备精简带来的功能弱化或缺失问题,实现了控压钻井成本的大幅降低.集成橇装控压系统在柴达木盆地C909井得到了成功应用,实现了精细控压的主要功能,该井控压作业井段3 750.00～5 320.00 m,进尺1 570.00 m,通过应用集成橇装控压钻井,实现了最快20 min控制回压循环排气消除后效、动承压获得井底压力窗口、实时发现漏失智能预警以及控压起下钻等精细控压的相关功能.整个井段控压过程中,通过旋控头结合软件参数调节回压实现了井底压力始终保持平稳,确保了钻井作业的安全顺利实施.
By optimizing and integrating the Management Pressure Control Drilling System(MPD),an integrat-ed skid-mounted control-pressure drilling system has been developed.By implementing highly integrated equip-ment,optimizing configurations,and improving algorithms the problems arising from reduced equipment strength or function were resolved at the same time,the cost of pressure control drilling is greatly reduced.The integrated skid-mounted control-pressure drilling system has achieved significant cost savings in fine-controlled pressure drilling.It was successfully implemented in Qaidam Basin well 909,at a depth of 3 750 m to 5 320 m,over a to-tal of 1 570 m.The system achieved the fastest 20 minute backpressure control cycle,eliminating after-effects,obtaining a bottom-hole pressure window under dynamic loading,offering real-time leak detection and intelligent alerts,and allowing fine-controlled pressure control during tripping,among other related functions.Throughout the pressure control process of the well,a steady and stable pressure at the bottom hole was maintained by regula-ting the return pressure via the rotary control head and software parameters.This method ensures secure and seamless execution of drilling operations.
By optimizing and integrating the Management Pressure Control Drilling System(MPD),an integrat-ed skid-mounted control-pressure drilling system has been developed.By implementing highly integrated equip-ment,optimizing configurations,and improving algorithms the problems arising from reduced equipment strength or function were resolved at the same time,the cost of pressure control drilling is greatly reduced.The integrated skid-mounted control-pressure drilling system has achieved significant cost savings in fine-controlled pressure drilling.It was successfully implemented in Qaidam Basin well 909,at a depth of 3 750 m to 5 320 m,over a to-tal of 1 570 m.The system achieved the fastest 20 minute backpressure control cycle,eliminating after-effects,obtaining a bottom-hole pressure window under dynamic loading,offering real-time leak detection and intelligent alerts,and allowing fine-controlled pressure control during tripping,among other related functions.Throughout the pressure control process of the well,a steady and stable pressure at the bottom hole was maintained by regula-ting the return pressure via the rotary control head and software parameters.This method ensures secure and seamless execution of drilling operations.