多工况关井智能控制物理模拟试验系统及室内测试

Physical Simulation Experiment System and Indoor Experiment for Multi-Working-Condition Intelligent Control of Shut-in

  • 摘要: 井控关井作业涉及多台设备协同调控,目前现场仍主要依靠工程师人工操作,易造成关井响应滞后、人为操作失误等问题。针对该问题,设计了覆盖6类钻井工况、10种关井模式、5大类设备联动的智能关井方案,构建了融合逻辑判别与视觉神经网络的井控设备状态实时识别模型,研制了多工况关井智能控制物理模拟试验系统。室内测试结果表明:绞车、顶驱、钻井泵、防喷器及节流管汇5类设备动作衔接时间短于1 s;防喷器-节流管汇整套设备执行时长短于90 s,较传统人工手动控制缩短50%以上;钻进、起下钻杆、起下钻铤、下套管、测井、空井6种工况下,全流程软、硬关井耗时均短于2 min;经60组重复验证,系统关井成功率达100%。研究成果可为国内井控技术智能化迭代升级提供理论与试验支撑。

     

    Abstract: Well control shut-in involves coordinated regulation of multiple pieces of equipment, yet it still relies on manual operation by engineers at present, which results in delayed shut-in responses and frequent operational errors. This paper proposes an intelligent shut-in control scheme covering six drilling working conditions, ten shut-in modes and linkage of five types of equipment. A real-time identification model for the operating status of well control equipment integrating logical judgment and visual neural networks is established, and a physical simulation experimental system for intelligent shut-in control under multiple working conditions is developed. Indoor test results show that the action connection time among five types of equipment, including winch, top drive, mud pump, blowout preventer and choke manifold, is less than 1 second; the execution time of blowout preventers and choke manifolds is less than 90 seconds, reduced by more than half compared with traditional manual control. The whole-process soft and hard shut-in time for six working conditions (drilling, tripping drill pipes, tripping drill collars, running casing, wireline logging and empty hole) is less than 2 minutes, and the shut-in success rate reaches 100% in 60 repeated tests. This research provides important guidance for promoting the intelligent development of well control technology in China.

     

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