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复杂破碎地层孔底驱动快速跟管钻进技术研究 被引量:1
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作者 赵凯 侯红 +1 位作者 赵大伟 丁荣飞 《钻探工程》 2023年第5期140-145,共6页
跟管钻进技术因其可以保护孔壁,防止卡钻,防止漏失,提高套管作业效率等特点,被广泛应用于油气钻井领域,但由于煤矿井下地层条件的复杂性,以及井下空间和现有钻机设备限制,该技术在解决煤矿井下钻探复杂破碎地层下套管作业困难、作业效... 跟管钻进技术因其可以保护孔壁,防止卡钻,防止漏失,提高套管作业效率等特点,被广泛应用于油气钻井领域,但由于煤矿井下地层条件的复杂性,以及井下空间和现有钻机设备限制,该技术在解决煤矿井下钻探复杂破碎地层下套管作业困难、作业效率低下等问题方面未有规模应用。针对这些问题,本文以河南赵固二矿为例,在分析复杂破碎地层下套管困难原因的基础上,提出孔底驱动跟管钻进技术,开发出了孔底传扭机构,并在赵固二矿进行了工业性试验,研究结果表明,孔底驱动跟管钻进技术解决了常规下套管工艺套管不转动、不排渣、易被卡死的问题,解决了复杂破碎地层套管作业效率低下和易形成废孔的问题,在穿越复杂破碎地层中应用具有较大优势。 展开更多
关键词 复杂破碎地层 孔底驱动 跟管钻进 下套管 传扭机构 煤矿井下钻探
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Design of a novel finger of DLR/HIT dextrous robot hand based on mechatronic integration
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作者 刘伊威 赵京东 +1 位作者 金明河 刘宏 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第3期376-381,共6页
With the idea of mechatronic integration,a novel finger of the dextrous robot hand has been designed. The finger with nice envelop has four joints with three DOFs driven by three brushless DC motors with smaller size ... With the idea of mechatronic integration,a novel finger of the dextrous robot hand has been designed. The finger with nice envelop has four joints with three DOFs driven by three brushless DC motors with smaller size and more torque. The use of rigid gear head,bevel gears and linkage in the transmission system makes the finger more rigid. Abundant sensors such as joint angle sensors,joint torque sensors and temperature sensors are located in the finger. Integration and modularization are achieved at most by high integration of finger body,driving system,sensors and electronics. 展开更多
关键词 robotic hand SENSORS mechatronic integration
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