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动态压井钻井智能化配浆系统在“梦想”大洋钻探船的测试应用
Test application of intelligent mud mixing system for dynamic kill drilling on “Mengxiang” ocean drilling vessel
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- DOI:
- 作者:
- 汪明鑫，鲁劲松，张贺恩，高永海，庞金鑫，秦明
- 作者单位:
- 1.广州海洋地质调查局，广东广州 511400 2.中国石油集团海洋工程有限公司，北京 100028 3.中国石油大学（华东），山东青岛 266580
- 关键词:
- 动态压井钻井；智能化；快速配浆；混合器；井控；计算流体力学
dynamic kill drilling; intellectualization; rapid mud mixing; mixer; well control; computational fluid dynamics
- 摘要:
- 针对深水浅层钻井面临的高压浅层气、浅层水流及窄安全压力窗口等井控挑战，以及在役钻探船设备
安装空间受限的工程难题，提出智能化自反馈动态压井钻井模块化混浆系统，通过实时调节钻井液密度，实现
精准快速调控钻井井筒压力。该系统集成多源实时数据采集、智能混浆控制算法和多级高效混合器，并安装于
我国自主研发的“梦想”大洋钻探船。现场试验验证结果表明，钻井液密度调控响应时间小于30 s，控制精度
达0.015 g/cm³，最大排量达400 m³/h，不仅可满足深水、超深水浅表层作业需求，还可进一步拓展应用于深
层钻进压井作业重浆的储备和快速调节，保障钻井全流程井控安全。
In view of the well control challenges in deep-water shallow drilling, such as high-pressure shallow gas, shallow water, and narrow pressure window, as well as the limitation of insufficient space on in-service drilling vessels, this paper proposed an intelligent self-feedback modular mud mixing system for dynamic kill drilling to achieve the rapid regulation and control of wellbore pressure during drilling by adjusting drilling fluid density in real time. The system integrated multi-source real-time data acquisition, intelligent mud mixing control algorithms, and multi-stage high-efficiency mixers and was installed on the “Mengxiang” ocean drilling vessel independently developed by China. The field test verification results indicate that the fluid density regulation response time is< 30 s; the control accuracy reaches 0.015 g/cm3, and the maximum flow rate reaches 400 m3/h. It can not only meet the requirements of shallow and surface-layer operations in deep and ultra-deep waters but also be further expanded and applied to the storage and rapid adjustment of heavy mud for well killing operations in deep drilling, ensuring the safety of well control operations throughout the entire drilling process.