Results 31 to 40 of about 1,542,680 (264)

A new approach to improving efficiency of gas-lift wells in the conditions of the formation of organic wax deposits in the Dragon field

open access: yesJournal of Petroleum Exploration and Production Technology, 2020
Gas-lift is one of the artificial methods in which gas is injected down the production casing–tubing annulus and enters the production tubing through a number of gas-lift valves. During the production of a gas-lift well, the injected compressed gas might
Van Thang Nguyen   +2 more
doaj   +1 more source

Occurrence, Genesis, and Significance of Analcime in Fine-Grained Sedimentary Rocks

open access: yesGeofluids, 2022
Natural analcime, an aluminosilicate mineral with multiple genetic mechanisms, widely occurs in fine-grained sedimentary reservoirs rich in oil and gas.
Junran Wang   +3 more
doaj   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

open access: yesAdvanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof   +9 more
wiley   +1 more source

PHASE BEHAVIOR OF GAS-CONDENSATE FLUIDS DURING WELL TESTING

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2015
Hydrodynamic studies in gas-condensate wells allow determining the features of fluids flow in the gas condensate reservoir by build-up curves. A variation in the shape of the build-up curve may reflect a behavior of fluids in the reservoir, that is the ...
M. L. Karnaukhov   +3 more
doaj   +1 more source

Influence of Hydrate Formation and Concentration of Salts on the Corrosion of Steel 20 Pipelines

open access: yesManagement Systems in Production Engineering, 2020
One of the ways to increase natural gas production is to conserve and/or intensify existing wells with their subsequent development. They are characterized by a high content of highly mineralized water, which leads to an increased risk of hydrate ...
Poberezhny Lubomyr   +6 more
doaj   +1 more source

Pore types and microstructure of the black shale in the Lower Silurian, Southeast of Chongqing, China

open access: yesFrontiers in Earth Science, 2023
The Lower Silurian black shale in the Southeast of Chongqing is of great potential in the accumulation of shale gas in South China. In order to understand the pore system of these black shales, mercury porosimetry, surface area study, mineralogy and ...
Juan Li   +12 more
doaj   +1 more source

Propane from the North Slope: Could It Reduce Energy Costs in the Interior? [PDF]

open access: yes, 2009
Could propane from the North Slope cut energy costs in Fairbanks and other Interior communities that heat buildings or generate electricity with fuel oil or naphtha? The Alaska Natural Gas Development Authority (ANGDA) thinks it could. That’s because
Goldsmith, Oliver Scott, Szymoniak, Nick
core  

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Ecological condition of marine waters in the area of dredging operations of the kashagan field, Kazakhstan

open access: yesЮг России: экология, развитие
To determine the hydrophysical and hydrochemical parameters of sea water and their changes during dredging works in the north‐eastern part of the Caspian Sea along the Western Approach Route and near/inside block D, islands EPC‐2, EPC‐3, EPC‐4 and island
A. Sh. Kanbetov   +5 more
doaj   +1 more source

CHANGES OF THE NATURAL ELECTRICAL POTENTIAL OF STEEL IN THE STRESS-STRAIN STATE

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2015
The experimental investigations of steel samples under the influence of the bending load were conducted. It is demonstrated that in the event of the steel stress-strain state occurrence, its natural electric potential changes.
S. V. Loparev   +3 more
doaj   +1 more source

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