摘要
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3750.00~5320.00 m,进尺1570.00 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 integrated skid-mounted control-pressure drilling system has been developed.By implementing highly integrated equipment,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 3750 m to 5320 m,over a total of 1570 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 regulating the return pressure via the rotary control head and software parameters.This method ensures secure and seamless execution of drilling operations.
作者
谯世均
赵江源
岳龙
王青华
QIAO Shijun;ZHAO Jiangyuan;YUE Long;WANG Qinghua(PetroChina Qinghai Oilfield Company,Dunhuang,Gansu 736202,China)
出处
《钻采工艺》
CAS
北大核心
2023年第5期162-166,共5页
Drilling & Production Technology
关键词
集成橇装控压钻井
自动节流
井漏
循环排气
动态承压
智能预警
integrated skid-mounted control-pressure drilling system
auto choke
leakage
exhaust elimination while circulation
dynamic pressure test
intelligent early kick-warning
作者简介
谯世均,高级工程师,1997年毕业于西南石油学院钻井工程专业,现从事青海油田工程技术及管理工作。地址:(736202)甘青海油田公司甘肃省敦煌市七里镇,电话:0937-8934234,E-mail:qsjqh@petro china.com.cn
