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2024
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Invention
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Rotary steerable backup arm and rotary steerable drilling system. A rotary steerable backup arm, ... |
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2023
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Invention
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Resistivity logging-based oil-gas well skin factor calculation method and related apparatus. Disc... |
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Invention
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Test device and test method for while-drilling casing collapse and cementing quality evaluation. ... |
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Invention
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Resistivity real-time measurement apparatus for stratum around well in packer well testing proces... |
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Invention
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Compass bird control method and apparatus. A compass bird control method and apparatus. The metho... |
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Invention
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Ocean bottom node data collection device, and method. An ocean bottom node data collection device... |
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Invention
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Core detection device of coring instrument and spacer insertion device. A spacer insertion device... |
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Invention
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Push-the-bit rotary steerable apparatus. A push-the-bit rotary steerable apparatus, comprising: a... |
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2022
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Invention
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Flow pattern regulator for water-based drilling fluid, and preparation method therefor. The prese... |
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Invention
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Liquid lightening agent, preparation thereof, and application thereof. The present application di... |
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2021
|
Invention
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Adjacent well detection apparatus, method and system.
An adjacent well detection apparatus, meth... |
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Invention
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Adjacent well detection apparatus, method and system. Disclosed are an adjacent well detection ap... |
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Invention
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Calculation method and device for interval transit time, and storage medium. A calculation method... |
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Invention
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Coring and sampling integrated sub and downhole instrument.
A coring and sampling integrated sub... |
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Invention
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Coring and sampling integrated sub and downhole instrument. A coring and sampling integrated sub,... |
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Invention
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Polymeric microsphere with surfactant wrapped therein and preparation method therefor. The presen... |
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Invention
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Logging image definition recognition method and device, medium, and electronic equipment.
The pr... |
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Invention
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Method for identifying clarity of well logging image, apparatus, medium, and electronic device. T... |
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Invention
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Azimuthal electromagnetic wave logging while drilling signal processing method and apparatus, and... |
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Invention
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Multi-frequency multi-dimensional nuclear magnetic logging method and apparatus, and storage medi... |
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Invention
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Sensor module, sensor assembly and acoustic logging tool.
A sensor module, including a main body... |
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Invention
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Sensor module, sensor assembly and acoustic logging tool. A sensor module, comprising a main body... |
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Invention
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Coring device.
A coring device, comprising an electronic sub communicated with a ground control ... |
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Invention
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Coring device. A coring device, comprising an electronic sub in communication with a ground contr... |
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Invention
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Core detection device of coring instrument. A core detection device of a coring instrument includ... |
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Invention
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Method, device and medium for acquiring logging parameters. A method, a device and a medium for a... |
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Invention
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Well logging parameter obtaining method, apparatus, and medium. Disclosed is a well logging param... |
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Invention
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Radioactive source library. A radioactive source library (100), comprising: a first box body (200... |
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Invention
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Solid-free and high-density completion fluid and preparation method therefor. A solid-free and hi... |
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Invention
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Unsteady-state seepage simulation method and system for natural gas reservoir. An unsteady-state ... |
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Invention
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Unsteady seepage simulation method and system of natural gas reservoir. A method and a system for... |
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2020
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Invention
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Measurement-while-drilling probe apparatus, electric imaging-while-drilling method, and electric ... |
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Invention
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Reservoir-based modeling method and device for pore network model. A reservoir-based modeling met... |
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Invention
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Convolutional neural network-based modeling method and device for pore network model. A convoluti... |
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Invention
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Method and device for controlling and determining control equation, and storage medium. A control... |
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Invention
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Oil-based drilling fluid and preparation method therefor, and preparation method for anti-settlin... |
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Invention
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Integrated logging instrument for coring and sampling. An integrated logging instrument for corin... |
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Invention
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Coring and sampling integrated logging instrument. Disclosed is a coring and sampling integrated ... |
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Invention
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Noise elimination method and apparatus for measurement while drilling (mwd) system, and storage m... |
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Invention
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Resistivity measurement pad and manufacturing method. A resistivity measurement polar plate, comp... |
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Invention
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Vibration detection apparatus applied to nuclear magnetic resonance while drilling instrument. A ... |
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Invention
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Downhole oil level detection device. A downhole oil level detection device includes a mounting ho... |
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Invention
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Downhole oil level detection device. A downhole oil level detection device, comprising a mounting... |
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Invention
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Method and system for measuring composition and property of formation fluid. Provided are a metho... |
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2019
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Invention
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Hydraulic power system for downhole device and downhole device. A hydraulic power system for a do... |
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Invention
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Connecting structure for drill collar of logging while drilling instrument and drill collar sub m... |
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2014
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P/S
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Radioactive elements for scientific purposes in the oil and gas industry; chemical additives for ... |
|
2011
|
P/S
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Radioactive elements for scientific purposes; chemical
additives to drilling muds; drilling muds... |
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P/S
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Radioactive elements for scientific purposes; chemical additives for drilling muds; drilling muds... |
