Results 11 to 20 of about 522 (199)

The Application of Neural Networks to Forecast Radial Jet Drilling Effectiveness [PDF]

open access: yesEnergies, 2022
This paper aims to study the applicability of machine-learning algorithms, specifically neural networks, for forecasting the effectiveness of Improved recovery methods. Radial jet drilling is the case operation in this study.
Sergey Krivoshchekov   +2 more
doaj   +4 more sources

Flow field investigation of a straight–swirling integrated jet for radial jet drilling

open access: yesEnergy Reports, 2022
Radial jet drilling (RJD) technology is applied to low permeability oil-gas reservoirs, coalbed methane, and shale gas. A self-propelled bit is an integral component.
Peng Du   +3 more
doaj   +4 more sources

Drilling Localization and Error Analysis of Radial Horizontal Jet Drilling Based on Magnetic Gradient Tensor [PDF]

open access: yesEnergies, 2020
To obtain the real-time drilling trajectory of radial horizontal jet drilling (RHJD), a magnetized nozzle localization method based on magnetic gradient tensor (MGT) is proposed.
Zhongxiang Liu   +6 more
doaj   +4 more sources

Insights into the radial water jet drilling technology – Application in a quarry

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
In this context, we applied the radial water jet drilling (RJD) technology to drill five horizontal holes into a quarry wall of the Gildehaus quarry close to Bad Bentheim, Germany. For testing the state-of-the-art jetting technology, a jetting experiment
Thomas Reinsch   +4 more
doaj   +6 more sources

Simulation and Experimental Study on Characteristics of Multiorifice Nozzle in Radial Jet Drilling [PDF]

open access: yesGeofluids, 2022
The radial jet drilling (RJD) is a key technology to improve the development efficiency of low-permeability oil and gas resources. In order to seek a reasonable hydraulic engineering parameter combination of hydraulic radial jet drilling, to obtain the ...
Tao Zhang   +3 more
doaj   +2 more sources

Well testing of radial jet drilling wells in geothermal reservoirs [PDF]

open access: yesComputational Geosciences, 2022
AbstractRadial Jet Drilling (RJD) is a stimulation technique to increase a well’s performance through creation of multiple laterals of up to 100 m long. The technique has been used in the petroleum industry for several years and recently also for geothermal reservoirs. Interpretation of well tests of a well with multiple laterals may become problematic
Elisabeth Peters, Paul Egberts
exaly   +2 more sources

Internal flow field and rock‐breaking characteristics of a straight‐swirling mixed jet and its influential factors in radial jet drilling

open access: yesEnergy Science & Engineering, 2022
The use of radial jet drilling (RJD) to exploit unconventional natural gas is an attractive study area. A self‐propelled bit enormously affects the drilling efficiency.
Peng Du   +3 more
doaj   +2 more sources

Research on Helical Electrode Electrochemical Drilling Assisted by Anode Vibration for Jet Micro-Hole Arrays on Tube Walls [PDF]

open access: yesMicromachines
The electrochemical cutting technique, utilizing electrolyte flushing through micro-hole arrays in the radial direction of a tube electrode, offers the potential for cost-effective and high-surface-integrity machining of large-thickness, straight-surface
Tao Yang   +4 more
doaj   +2 more sources

Flow structure and rock-breaking feature of the self-rotating nozzle for radial jet drilling [PDF]

open access: yesPetroleum Science, 2019
For improving the hole-enlarging capability, roundness and rock-breaking efficiency of the nozzle in radial jet drilling, a new structure of self-rotating nozzle was put forward.
Hua-Lin Liao   +5 more
doaj   +2 more sources

Study and Application of Hydraulic Jet Radial Drilling in Carbonate Reservoirs [PDF]

open access: yesInternational Journal of Oil Gas and Coal Engineering, 2018
The hydraulic jet radial drilling technology is a low-cost production and completion technology for effectively developing low-permeability marginal reservoirs, thin-bed reservoirs with edge and bottom water, and depleted oil and gas fields. It has been successfully and widely applied in sandstone, coalbed methane, and heavy oil reservoirs. In order to
exaly   +2 more sources

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