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Construction process for well testing and completion in well cluster field
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High-ductility small-diameter dissolvable bridge plug
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Underground radar detection anti-collision short section, detection anti-collision system and detection anti-collision method
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Performance testing device and method for pulse generator control valve
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Device and method for insulating, protecting, bearing and sealing connector
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Oil-immersed contact type transmission slip ring for intelligent drilling tool
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Composite drainage gas production pipe column for draining accumulated liquid in 'lying well' well and method thereof
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Evaluation method for acid damage effect of low-permeability rock
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Dynamic optimization design method for measuring mud pressure wave signal period while drilling
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PDC drill bit with buffer gear
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Returnable slip type casing tieback make-up connector
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Stratum drillability evaluation method based on grey prediction
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RFID chip installation method applied to well control device
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Gas logging data detection experimental device for simulating borehole environment
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Multi-dimensional identification method of well control device
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Method for judging and identifying oil-water interface of buried hill by using water content index
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Magnetic repulsion damping drilling tool
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Well control device management system and method based on Internet of things and Internet
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Buffer instantaneous pressure reduction short section for PDC drill bit
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Well drilling speed-up instrument suitable for screw rod drilling tool
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