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2025
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Invention
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Supercritical co2 thickener for shale gas reservoir based on hollow mesoporous silica nanoparticl... |
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Invention
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Infinite-stage fracturing sliding sleeve. Disclosed is an infinite-stage fracturing sliding sleev... |
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Invention
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Methods for diagnosing control effectiveness of fracture heights in hydraulic fracturing by combi... |
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Invention
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High-flow-conductivity proppant and preparation method thereof. The disclosure belongs to the tec... |
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2024
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Invention
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Calculation method for fractal dimension of shale pores. A calculation method for fractal dimensi... |
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Invention
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Method for calculating wellbore friction resistance of foam drainage gas production well.
The pr... |
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Invention
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Quantitative prediction method for gas content of deep marine shale. A quantitative prediction me... |
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Invention
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Method for determining reasonable soaking time of shale oil/gas well. Disclosed is a method for d... |
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Invention
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System for optimizing particle size distribution of lost circulation materials. Disclosed is a sy... |
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Invention
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Fracture plugging simulation experimental device and experimental method thereof. Disclosed is a ... |
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Invention
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Bit cutting structure and pdc bit for highly abrasive formations.
A bit cutting structure and a ... |
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Invention
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Double-crosslinked thermal phase transition gel temporary plugging agent and application thereof.... |
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Invention
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Method for determining reasonable soaking time for shale oil/gas well. Provided in the embodiment... |
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Invention
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Method for combined characterization of pore structure. 2, and high-pressure mercury intrusion po... |
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Invention
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Method for calculating surface relaxation rate of shale. A method for calculating a surface relax... |
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Invention
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Three-dimensional characterization method of hydrocarbon secondary migration channel.
A three-di... |
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Invention
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Intelligent water detection tool for horizontal wells.
This invention discloses an intelligent w... |
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Invention
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Backflow gas heating and throttling device, and surface throttling system. A backflow gas heating... |
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Invention
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Resin slurry plugging system suitable for fractured-vuggy formation and preparation and use there... |
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Invention
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Integrated machine for automatic cutting, polishing, stacking and unloading of substrates. An int... |
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Invention
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Co2 responsive core-shell multi-stage swelling microsphere and preparation method thereof. The pr... |
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Invention
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Method for determining well wall collapse of single well for fractured-vuggy reservoir. A method ... |
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Invention
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High-temperature-resistant deep penetration molecular membrane acid copolymers and preparation me... |
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Invention
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Active energy-absorbing shock absorber for perforation combined well testing.
An active energy-a... |
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Invention
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Gas based testing method for pore volume compressibility of low-permeability rock. The present in... |
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Invention
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2 drying experiment and use method thereof. 2 drying experiment comprises a heating jacket, a vis... |
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Invention
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Combined drill bit based on electro-pulse-drilling technology. A combined drill bit based on the ... |
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Invention
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Displacement devices.
Embodiments of the present disclosure provide a displacement device, compr... |
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Invention
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Method for predicting water invasion frontier for complex well in bottom-water gas reservoir. The... |
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Invention
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Calculation method for mobile fluid saturation after reservoir fracturing based on netting analys... |
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Invention
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Valve-controlled high-energy hydrostatic down-the-hole impact hammer.
A valve-controlled high-en... |
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Invention
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Asphaltene dispersion stabilizer and preparation method therefor. The present invention provides ... |
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Invention
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Recognition method and system for safety behaviors in industrial control system for gas field. A ... |
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Invention
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Efficient generation and performance evaluation device of foam under high temperature and high pr... |
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Invention
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Optimized design method and system for carbon dioxide geological storage parameters in depleted g... |
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Invention
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Wear-resistant and collision-resistant polycrystalline diamond compact (pdc) drill bit with rostr... |
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2023
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Invention
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Intelligent directional device for full rotation of drill string. An electronically controlled fu... |
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Invention
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Polycyclic azide desulfurizer and synthesis method thereof. Disclosed is a polycyclic azide desul... |
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Invention
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Low-shrinkage and high-strength plant-based resinous blocking agent and preparation method thereo... |
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Invention
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Prediction method for formation water yield of carbonate gas reservo.
A prediction method for fo... |
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Invention
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Methods and systems for determining well shut-in pressures of oil and gas well drilling.
Methods... |
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Invention
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Impact simulation device and simulation method for characteristics of rock chip beds in large dis... |
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Invention
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Directional well hydraulic clutch drill string full rotation controller.
The disclosure is in th... |
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Invention
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Instant soluble temperature and salt resistant polyacrylamide and the preparation method and appl... |
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Invention
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Experimental device and method for solubility determination of methane in oil-based drilling flui... |
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Invention
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Phase-change heat storage microcapsule material suitable for cooling drilling fluid and preparati... |
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Invention
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Phase-change heat-storage microcapsule material suitable for cooling drilling fluids and preparat... |
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Invention
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Methods and systems for accurate well-seismic tie based on stepwise matching and optimization.
T... |
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Invention
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All-metal intelligent control motor. The disclosure concerns oil drilling technology, and specifi... |
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Invention
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2 as cushion gas. 4 multi-component material balance equation in underground porous media by cons... |
