| High-temperature-resistant high-salt cleanup additive for acidizing and … |
2022-12-13 |
2023-1-10 |
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| Vulcanization molding method for high-temperature-resistant packer sealing … |
2022-11-28 |
2023-2-03 |
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| Friction-reducing and torsion-reducing method for water-based drilling fluid of … |
2022-11-11 |
2023-1-20 |
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| Checking-in device for checking attendance condition of checker |
2022-11-09 |
2023-1-10 |
2023-1-10 |
| Method for evaluating satisfaction degree of logging user in petroleum … |
2022-11-09 |
2023-1-31 |
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| Drilling plugging agent suitable for fractured stratum |
2022-11-08 |
2023-1-31 |
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| Soluble pumping short joint for optical fiber cable well logging |
2022-11-07 |
2023-1-06 |
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| Cooling tower filler online cleaning device and cleaning method |
2022-11-02 |
2023-1-10 |
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| Oil gas gathering and transportation station equipment parameter early warning … |
2022-11-02 |
2023-2-03 |
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| Skid-mounted marine bank base LNG filling device |
2022-10-31 |
2023-1-17 |
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| Filtering component and horizontal filtering separator |
2022-10-31 |
2023-2-03 |
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| Method for evaluating well cementation quality and method for comprehensively … |
2022-10-28 |
2023-1-13 |
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| Oil leakage detection cable and application thereof in oil leakage detection |
2022-10-27 |
2022-12-30 |
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| Underground hydrogen storage device, system and method |
2022-10-27 |
2023-2-03 |
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| Oil storage tank bottom leakage detection system |
2022-10-27 |
2023-1-03 |
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| High-temperature-resistant multifunctional emulsion plugging agent for water- … |
2022-10-25 |
2022-12-30 |
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| Flow switch simulation vibration device |
2022-10-25 |
2023-1-24 |
2023-1-24 |
| Flexible connecting device and measurement while drilling device |
2022-10-25 |
2023-1-24 |
2023-1-24 |
| Wall-sticking oil preparation device and method and yield stress testing system … |
2022-10-24 |
2023-1-20 |
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| Construction method of mass concrete in severe cold climate |
2022-10-24 |
2022-12-09 |
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| Shale gas fracturing liquid storage tank low pressure supplies liquid automatic … |
2022-10-21 |
2023-2-03 |
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| Oil field drilling and workover operation junk protector |
2022-10-21 |
2023-2-03 |
2023-2-03 |
| Preparation method of self-lubricating slickwater fracturing fluid |
2022-10-21 |
2023-1-31 |
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| High-temperature resistant zwitterionic copolymer retarder and preparation … |
2022-10-21 |
2022-11-22 |
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| Hydrophobic crosslinking monomer and preparation method thereof, and polymer … |
2022-10-20 |
2023-1-13 |
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| Movable butt joint device for installing wellhead blowout preventer stack and … |
2022-10-20 |
2023-1-20 |
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| Adjustable vibration sand washer |
2022-10-19 |
2023-1-24 |
2023-1-24 |
| Floating coupling |
2022-10-15 |
2023-1-31 |
2023-1-31 |
| Application of high-nitrogen-doped graphene nanosheet in water-based drilling … |
2022-10-13 |
2023-1-20 |
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| Integrated gathering and transporting treatment skid-mounted system for high- … |
2022-10-13 |
2023-1-03 |
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| Strengthening evaluation device for automatic gas drilling shaft |
2022-10-13 |
2023-1-10 |
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| Blockage removing method and device for oil pipeline |
2022-10-13 |
2023-1-10 |
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| Scribble roller mechanism and be used for domatic brush of channel to glue … |
2022-10-12 |
2022-12-23 |
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| Device for counting pulse counting rate of logging-while-drilling instrument in … |
2022-10-12 |
2023-2-03 |
2023-2-03 |
| Dynamic positioning system ship |
2022-10-10 |
2023-1-20 |
2023-1-20 |
| Tunnel inner pipeline construction equipment and tunnel inner pipeline … |
2022-10-10 |
2023-1-06 |
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| Device for separating natural gas and hydrogen based on hydrate method |
2022-10-09 |
2023-1-06 |
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| Flexible water stop device |
2022-10-08 |
2022-12-30 |
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| Full-automatic welding construction method for crude oil heat-insulating … |
2022-10-08 |
2022-12-02 |
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| Bank business posting method and device, storage medium and computer equipment |
2022-9-30 |
2023-1-31 |
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| Oil-filled wire harness for downhole instruments |
2022-9-30 |
2023-1-24 |
2023-1-24 |
| Fault detection system for receiving circuit of measurement while drilling … |
2022-9-30 |
2023-1-20 |
2023-1-20 |
| Mounting structure and underwater exploration system of underwater positioning … |
2022-9-21 |
2023-1-24 |
2023-1-24 |
| Pulley device for offshore penetration test and offshore penetration test … |
2022-9-21 |
2023-1-03 |
2023-1-03 |
| Conductive cable auxiliary device |
2022-9-20 |
2023-1-03 |
2023-1-03 |
| Disassembling tool of anti-folding device |
2022-9-20 |
2023-1-03 |
2023-1-03 |
| Tool for quickly disassembling and assembling hydraulic cylinder pin |
2022-9-20 |
2023-1-03 |
2023-1-03 |
| Gas-liquid separation system for shale gas |
2022-9-20 |
2022-12-20 |
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| Seismic exploration node instrument embedding quality monitoring device |
2022-9-19 |
2023-2-03 |
2023-2-03 |
| Sloping block self-locking type biasing mechanism and rotary guiding tool … |
2022-9-16 |
2023-1-24 |
2023-1-24 |
| Intermittent low-liquid-phase material pumping and feeding device |
2022-9-15 |
2023-1-10 |
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| Self-adaptive tool rest for inner centering beveling machine |
2022-9-15 |
2022-12-23 |
2022-12-23 |
| Intermittent low-liquid-phase material pumping and feeding device |
2022-9-15 |
2022-12-23 |
2022-12-23 |
| Dipole sound insulator capable of realizing arbitrary rotation angle and … |
2022-9-15 |
2023-1-24 |
2023-1-24 |
| Drill rod and drill column |
2022-9-15 |
2023-1-17 |
2023-1-17 |
| Automatic drill rod conveying and unloading device of drilling platform |
2022-9-15 |
2022-12-23 |
2022-12-23 |
| Heat insulation device for underground electronic element |
2022-9-14 |
2023-1-20 |
2023-1-20 |
| Movable hanging point device of derrick racking platform |
2022-9-14 |
2022-12-13 |
2022-12-13 |
| Rope pressing device for dead rope fixer |
2022-9-14 |
2022-12-13 |
2022-12-13 |
| Hoisting tool for drilling tool joint |
2022-9-14 |
2022-12-20 |
2022-12-20 |
| Deep well high-precision magnetic receiving antenna |
2022-9-14 |
2023-1-20 |
2023-1-20 |
| Cantilever beam oil receiving device of self-elevating drilling platform |
2022-9-14 |
2022-12-13 |
2022-12-13 |
| Acoustic-electric logging probe |
2022-9-14 |
2023-1-31 |
2023-1-31 |
| Hoisting device for overhaul of slurry pump |
2022-9-13 |
2022-12-20 |
2022-12-20 |
| Oil pipe reverse pressure device |
2022-9-13 |
2023-1-24 |
2023-1-24 |
| Marine perforation apparatus and method |
2022-9-13 |
2022-12-09 |
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| Wellhead side-pulling pulley assembly for well logging |
2022-9-13 |
2023-1-24 |
2023-1-24 |
| Bridge plug ignition control module |
2022-9-09 |
2023-1-13 |
2023-1-13 |
| Anti-blocking device |
2022-9-09 |
2023-1-13 |
2023-1-13 |
| Element analyzer operation rack |
2022-9-09 |
2023-1-13 |
2023-1-13 |
| Core coring and connecting device |
2022-9-08 |
2023-1-13 |
2023-1-13 |
| Drainage grounding system of transmission line accompanying oil and gas … |
2022-9-08 |
2023-2-03 |
2023-2-03 |
| Liftable camera device |
2022-9-07 |
2023-1-24 |
2023-1-24 |
| Element analysis pressed cake preparation device |
2022-9-07 |
2023-1-24 |
2023-1-24 |
| Releasable docking device |
2022-9-06 |
2023-1-13 |
2023-1-13 |
| Method for acquiring excitation well depth based on near-surface deposition law |
2022-9-06 |
2022-12-09 |
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| Control device of neutron generator |
2022-9-05 |
2023-1-13 |
2023-1-13 |
| A man-hour collector mounting structure for engineering machine tool |
2022-9-05 |
2022-12-09 |
2022-12-09 |
| Boost oscillating circuit |
2022-9-05 |
2023-1-24 |
2023-1-24 |
| Motor driving system and logging instrument backup system |
2022-9-05 |
2023-1-13 |
2023-1-13 |
| Chain bucket type conveying device |
2022-8-31 |
2023-1-24 |
2023-1-24 |
| Oil-gas well layered testing device and using method thereof |
2022-8-30 |
2022-11-11 |
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| Gas lift plunger based on composite drainage gas production process |
2022-8-26 |
2022-12-27 |
|
| Conical bearing spacer sleeve detection device |
2022-8-25 |
2022-12-23 |
2022-12-23 |
| Sandstone reservoir fluid property rapid interpretation method based on well- … |
2022-8-24 |
2022-12-06 |
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| Soluble short joint for horizontal well pumping operation |
2022-8-24 |
2022-12-23 |
2022-12-23 |
| Connect oil box and oil pipe rack |
2022-8-19 |
2022-12-16 |
2022-12-16 |
| Preheating device and fracturing equipment |
2022-8-18 |
2023-1-24 |
2023-1-24 |
| Water hole-passing tool |
2022-8-18 |
2022-12-16 |
2022-12-16 |
| Derrick and be used for assisting drilling string anti-bending righting device … |
2022-8-17 |
2022-12-16 |
2022-12-16 |
| Device for preparing high-viscosity acid liquid on line |
2022-8-17 |
2023-1-31 |
2023-1-31 |
| Zero line lap joint device for full-automatic welding of pipeline |
2022-8-17 |
2022-12-16 |
2022-12-16 |
| Integrated drill rod cleaning tool and using method thereof |
2022-8-15 |
2022-9-20 |
|
| Automatic control device of sand and mud removing cleaner for high-density … |
2022-8-12 |
2022-12-13 |
2022-12-13 |
| Derrick assembly and derrick protection module |
2022-8-11 |
2022-12-27 |
2022-12-27 |
| Coiled tubing horizontal well comprehensive leakage finding method |
2022-8-10 |
2022-11-25 |
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| Drilling plug backflow real-time flow monitoring system for continuous oil pipe |
2022-8-10 |
2022-11-15 |
2022-11-15 |
| Fracturing temporary plugging ball throwing technological method based on … |
2022-8-10 |
2022-11-29 |
|
| Integrated well drilling rock debris collecting device |
2022-8-09 |
2022-11-29 |
|
| Reciprocating pump |
2022-8-08 |
2022-9-02 |
|