Results 21 to 30 of about 3,835 (233)
Advances in Mechanical Engineering, 2023 Jet nozzle is a core component of the hydraulic perforating fracturing tool, and the design of the nozzle structure directly affects the perforating effectiveness and efficiency.
Yu Gao +3 more
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Counter-rotor hydraulic unit on the basis of a nozzle jet hydro turbine [PDF]
E3S Web of Conferences, 2023 This article analyzes counter-rotor hydraulic units developed on the basis of jet turbines. A new design of a counter-rotor hydraulic unit developed by the authors, consisting of a jet turbine with a nozzle and a water wheel, the principle of its ...
Bozarov Oybek +3 more
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Progress on the hydraulic measures for grid slotting and fracking to enhance coal seam permeability
International Journal of Mining Science and Technology, 2017 A method of hydraulic grid slotting and hydraulic fracturing was proposed to enhance the permeability of low permeability coal seam in China. Micro-structural development and strength characteristics of coal were analysed to set up the failure criterion ...
Yiyu Lu +4 more
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Наука. Инновации. Технологии, 2022 Introduction. The paper provides recommendations for the development and survey of wells with the aid of jet devices, depending on the nature of the inflow after hydraulic fracturing.
A. E. Verisokin, G. A. Shlein
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Multistage hydraulic jet acid fracturing technique for horizontal wells
Petroleum Exploration and Development, 2012 Acid fracturing in deep carbonate reservoirs is challenged by deep well stimulation with high temperature (>120 °C), high fracture pressure (>2.0 MPa/m), high flow friction, and strong reservoir heterogeneity.
Gensheng LI +5 more
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Improving the Energy Efficiency of the Use of Borehole Jet Pumps
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020 The article presents rationales for choosing the depth of installation of an oil jet pump in the borehole that which ensures maximum efficiency of its operation.
D. A. Panevny, A. V. Panevny
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HYDRAULIC ELEVATOR INSTALLATION ESTIMATION FOR THE WATER SOURCE WELL SAND-PACK CLEANING UP
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016 The article offers design of a hydraulic elevator installation for cleaning up water-source wells of sand packs. It considerers the installation hydraulic circuit according to which the normal pump feeds the high-level tank water into the borehole ...
V. V. Ivashechkin
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Simulation and Experimental Study on Characteristics of Multiorifice Nozzle in Radial Jet Drilling
Geofluids, 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
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Optimization and application of hydraulic injection segmental fracturing process in Mabidong Block
Meikuang Anquan, 2021 Due to the large buried depth, high stress and relatively complex coal structure in Mabidong block, about 35% of horizontal wells have problems such as difficult fracturing, high construction pressure and sand plugging during the stage fracturing ...
LI Zongyuan, NI Xiaoming, SHI Yanxia, HUO Lifen, LI Jiafeng, ZHANG Shaoyong
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Hydraulic drill hole reaming technology with large flow and draining of coal mine gas
International Journal of Mining Science and Technology, 2019 This paper takes Zhaozhuang mine in Shanxi province as an example to study the technology of hydraulic reaming drill hole for improving the gas extraction. The influence of the physical properties of coal seam on the hydraulic reaming drill holes and the
Li Dingqi
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