| Natural gas line fixed mounting structure |
2022-9-05 |
2022-10-04 |
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| Apparatuses for Mounting Tanks to Vehicles and Related Methods |
2022-8-16 |
2022-12-08 |
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| Intelligent cleaning method and system for sensor based on oil well natural gas … |
2022-7-26 |
2022-10-18 |
2022-10-18 |
| Pipeline connection supporting protection device |
2022-6-30 |
2022-9-27 |
2022-9-27 |
| Self-cleaning thermal mass flowmeter |
2022-5-06 |
2022-9-09 |
2022-9-09 |
| Pressure vessel inner wall belt cleaning device |
2021-12-20 |
2022-4-19 |
2022-4-19 |
| Fuzzy neural network PID fire flooding intelligent ignition control method |
2021-11-23 |
2022-4-05 |
|
| Natural gas pipe network leakage early warning method based on machine learning … |
2021-9-09 |
2022-1-28 |
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| Filtering device |
2021-8-24 |
2022-8-12 |
2022-8-12 |
| Multistage desorption device of defeated pipeline micron order granule impurity … |
2021-8-14 |
2022-2-01 |
2022-2-01 |
| Nano plugging agent for oil-based drilling fluid, preparation method of nano … |
2021-6-25 |
2022-9-23 |
2022-9-23 |
| Deep sampling device for oil exploration |
2021-6-02 |
2021-12-17 |
2021-12-17 |
| Gas pipeline tapping shutoff choke plug |
2021-4-21 |
2021-11-02 |
2021-11-02 |
| Motor control accuracy assessment method and system |
2021-3-24 |
2021-6-04 |
|
| Method and system for predicting plane distribution of different reservoirs |
2021-3-17 |
2021-6-11 |
|
| Intelligent natural gas overhead pipe support |
2021-3-16 |
2021-11-16 |
2021-11-16 |
| Sinking type liquid delay foaming agent for gas production foam drainage and … |
2021-2-08 |
2022-7-12 |
2022-7-12 |
| Virtual gaseous fuel pipeline |
2021-1-11 |
2021-5-06 |
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| Crack modeling method and device |
2020-10-20 |
2022-4-22 |
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| Three-dimensional experimental system for yield-increasing transformation and … |
2020-9-28 |
2022-4-15 |
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| Fire early warning detection method and system for gas field station |
2020-9-24 |
2021-1-12 |
|
| Hydrocracking catalyst comprising a Ti and Zr substituted beta zeolite (BEA) … |
2020-9-24 |
2022-6-07 |
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| Special foamless composite bactericide for shale gas well pipeline and … |
2020-9-15 |
2020-11-17 |
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| Natural gas line butt joint pipe structure |
2020-8-06 |
2021-6-11 |
2021-6-11 |
| Natural gas pipeline quality detection device |
2020-7-29 |
2022-4-26 |
2022-4-26 |
| Crude helium refining system and method |
2020-7-22 |
2020-12-04 |
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| Threaded connection with asymmetrical helical profile |
2020-7-15 |
2022-4-26 |
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| Threaded connection for an oil well casing string |
2020-7-15 |
2022-4-26 |
|
| Natural gas station leakage monitoring method based on risk evaluation and … |
2020-7-08 |
2020-9-22 |
2020-9-22 |
| Decision fusion-based oil and gas pipeline early warning system and method |
2020-7-08 |
2020-8-14 |
|
| Pipeline along-line third-party construction dynamic early warning method based … |
2020-7-08 |
2020-8-14 |
|
| Unmanned aerial vehicle routing inspection path planning method based on random … |
2020-7-08 |
2020-8-14 |
|
| Ecological protection system of limestone waste slag yard |
2020-7-08 |
2020-10-30 |
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| Threaded joint with shoulder produced by additive manufacturing |
2020-6-29 |
2022-3-22 |
|
| Method for establishing speed depth model based on gather data |
2020-6-28 |
2021-3-09 |
2021-3-09 |
| Stable anion exchange membrane based on fluorinated aliphatic hydrocarbon and … |
2020-6-25 |
2022-5-13 |
|
| Explosion-proof inspection robot for natural gas station |
2020-6-22 |
2021-4-02 |
2021-4-02 |
| Pipe orifice polishing device for natural gas pipeline |
2020-6-20 |
2020-9-29 |
|
| Multi-cluster fracturing fracture morphology prediction method based on … |
2020-6-16 |
2020-8-25 |
|
| Combined efficient blockage removing system and blockage removing method … |
2020-6-02 |
2020-8-07 |
|
| Biomass biogas residue paper making device |
2020-5-28 |
2021-2-19 |
2021-2-19 |
| Optimized scheduling method for comprehensive energy system |
2020-5-13 |
2020-7-28 |
|
| Portable natural gas pipeline detection device |
2020-5-06 |
2020-9-04 |
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| Gas pipeline non-stop tapping connection method |
2020-4-29 |
2021-8-03 |
2021-8-03 |
| Method for predicting different types of reservoirs |
2020-4-24 |
2020-7-28 |
|
| Method for calculating crack strength of favorable region of target layer |
2020-4-24 |
2020-8-07 |
|
| Device for producing biological organic fertilizer by using biogas residues |
2020-4-17 |
2021-2-05 |
2021-2-05 |
| Natural gas storage tank |
2020-4-09 |
2021-12-14 |
2021-12-14 |
| Erosion resistance test system and method for anti-corrosion pipeline |
2020-3-30 |
2020-6-19 |
|
| Natural gas leakage monitoring system and monitoring method |
2020-3-25 |
2020-6-12 |
|
| Natural gas line welding seam detection device |
2020-3-19 |
2020-10-16 |
2020-10-16 |
| Natural gas static pressure air bearing two-stage expansion generator and power … |
2020-3-09 |
2020-7-03 |
|
| Sacrificial anode state monitoring system based on synchronous time service and … |
2020-2-19 |
2020-5-29 |
|
| A percolating water detection device for high-voltage inverter |
2020-2-18 |
2020-8-14 |
2020-8-14 |
| Full-automatic environment-friendly sand blasting machine |
2020-2-10 |
2020-11-24 |
2020-11-24 |
| Online maintenance device for natural gas pipeline |
2020-1-03 |
2020-11-24 |
2020-11-24 |
| Storage room of liquefied natural gas tank |
2019-12-31 |
2020-10-09 |
2020-10-09 |
| Novel plate-tube type liquefied natural gas heat exchanger |
2019-12-31 |
2020-5-05 |
|
| Rust removal device for large-diameter pipeline |
2019-12-11 |
2020-7-24 |
2020-7-24 |
| Conveying device for gas conveying pipeline |
2019-12-10 |
2020-7-24 |
2020-7-24 |
| Vibration positioning method and system based on phase-sensitive OTDR |
2019-11-15 |
2020-4-17 |
|
| Mixing device and mixing method for oil-gas mixed transportation of oilfield … |
2019-11-06 |
2020-2-07 |
|
| Evaluation device and evaluation method for foam system for oil displacement |
2019-10-15 |
2020-1-24 |
|
| fracturing plugging bridge plug and setting and unsetting method thereof |
2019-10-11 |
2020-1-31 |
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| Water injection well water absorption profile adjusting sleeve and adjusting … |
2019-10-09 |
2019-12-27 |
|
| Rapid quantitative description method for low-permeability reservoir channeling … |
2019-10-08 |
2020-1-03 |
|
| Method and device for determining saturation index of rock and soil |
2019-9-26 |
2019-12-27 |
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| Method and device for synchronously monitoring carbon dioxide flux of aeration … |
2019-9-20 |
2020-1-17 |
|
| Aeration zone soil multi-point gas collection device with background comparison … |
2019-9-20 |
2020-2-07 |
|
| Novel drilling fluid nano plugging agent, preparation method thereof and water- … |
2019-9-19 |
2020-2-21 |
|
| Shale oil analysis method and device for continuously representing content of … |
2019-9-17 |
2020-1-14 |
|
| Comprehensive classification evaluation method for ultra-low permeability oil … |
2019-9-11 |
2020-1-03 |
|
| Using wireless data transmission to maintain intrinsic saftey of a gas meter |
2019-9-10 |
2020-1-02 |
|
| Acid fracturing fracture dynamic fluid loss calculation method considering … |
2019-9-09 |
2019-12-24 |
|
| Method and device for predicting distribution of corrosion holes of carbonate … |
2019-9-04 |
2019-12-31 |
|
| Carbon steel corrosion inhibitor and preparation method thereof under a kind of … |
2019-9-03 |
2019-11-26 |
|
| non-crack type water-breakthrough oil well repeated transformation method |
2019-8-26 |
2019-12-10 |
|
| A kind of Oil in Super-low Permeability oil reservoir low pressure blocking … |
2019-8-21 |
2019-12-03 |
|
| A kind of defroster of double medicament well mouth of oil well dosing … |
2019-8-20 |
2019-11-22 |
|
| Method for fixed-point crack initiation of low-permeability layer of water … |
2019-8-19 |
2019-12-10 |
|
| A kind of low pressure densification oil reservoir supplement energy fracturing … |
2019-8-16 |
2019-11-19 |
|
| Method for improving extraction degree of low-pressure tight oil reservoir |
2019-8-16 |
2019-12-10 |
|
| Salt structure analysis method, device and system |
2019-8-16 |
2019-12-31 |
|
| Method and device for quantitatively analyzing fault closure |
2019-8-16 |
2019-12-31 |
|
| Method and device for analyzing sealing property of heterogeneous fault |
2019-8-16 |
2019-12-31 |
|
| A method of shear wave slowness is predicted using well-log information |
2019-8-09 |
2019-11-08 |
|
| Natural gas line choke device |
2019-8-09 |
2020-5-15 |
2020-5-15 |
| A kind of gas well separate stratum fracfturing, the water integrated process … |
2019-8-08 |
2019-11-15 |
|
| A kind of gas well mouth throttling heating process units and method |
2019-8-06 |
2019-11-19 |
|
| A kind of plunger captures delivery device and its application method … |
2019-8-06 |
2019-11-08 |
|
| A kind of composite oil-displacing system and its methods for making and using … |
2019-8-05 |
2019-11-22 |
|
| A kind of advanced accumulation of energy fracturing process |
2019-8-05 |
2019-11-12 |
|
| Method for comparing and analyzing detection data in pipeline |
2019-8-02 |
2020-5-12 |
|
| A kind of control is close to expand remote complicated seam network pressure … |
2019-7-22 |
2019-11-15 |
|
| A kind of oil gas well shaft temporarily stifled soluble capsules diverting … |
2019-7-19 |
2019-11-15 |
|
| A kind of integrated transducer and measurement method measuring fluid … |
2019-7-18 |
2019-10-25 |
|
| A kind of natural gas line steady-state operation optimization method for … |
2019-7-18 |
2019-11-22 |
|
| The preset tool and its application method of intake profile are surveyed in a … |
2019-7-18 |
2019-10-25 |
|
| High-pressure natural gas flow primary standard device with adjustable sonic … |
2019-7-17 |
2020-2-07 |
2020-2-07 |
| Simulation experiment device for monitoring natural gas pipeline blockage by … |
2019-7-16 |
2019-12-27 |
2019-12-27 |