Results 11 to 20 of about 1,883,484 (166)

Oil displacement efficiency based on different well pattern adjustment simulation in high water cut reservoirs [PDF]

open access: yesYouqicang pingjia yu kaifa, 2023
The adjustment of the flow field proves to be an effective way for enhancing the recovery of remaining oil during the high water cut development stage in a water-flooding oilfield.
YANG Bing, FU Qiang, GUAN Jingtao, LI Linxiang, PAN Haoyu, SONG Hongbin, QIN Tingting, ZHU Zhiwei
doaj   +3 more sources

Design and field-scale demonstration of the buoyant-kill process for restoring integrity of wells with sustained casing pressure

open access: yesFrontiers in Energy Research, 2023
Sustained Casing Pressure (SCP) is the persistent casinghead pressure resulting from the well’s annular integrity loss and migration of gas above the leaking cement sheath.
Efecan Demirci, Andrew Wojtanowicz
doaj   +1 more source

Production efficiency analysis in hydrate reservoir under multi-well systems

open access: yesEnergy Reports, 2022
To achieve the goal of carbon emission reduction, the hydrate is widely concerned for its outstanding advantages such as high calorific value and low pollution.
Linghui Huang   +3 more
doaj   +1 more source

PRIDICTION OF THE PRODUCTIVITY OF HYDRAULIC FRACTURED VERTICAL WELL WITH FINITE CONDUCTIVITY FRACTURE

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2017
A new general analytical technique for the pseudo-steady state for vertical finite fracture conductivities in rectangular formations (with different length-to-width relationships, 1 ≤ λ ≤ 5) is presented.
S. A. Faiq
doaj   +1 more source

PERFORMANCE OF THE VARIABLE CONDUCTIVITY DAMAGED FRACTURE AND FRACTURE OPTIMIZATION

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2018
The article presents the results of the variable or non-uniform conductivity (width, permeability or both profiles) in the fracture. This allows predict performance of damaged fracture, and so on.
S. A. Faiq, A. V. Sarancha
doaj   +1 more source

Comprehensive assessment of hydraulic fracturing technology efficiency for well construction during hydrocarbon production

open access: yesЗаписки Горного института, 2022
The oil and gas industry has been an integral and fundamental sector of the Russian economy for the past few years. The main problems of this industry have traditionally been the deteriorating structure of oil reserves; depreciation of main assets ...
Igor I. Bosikov   +2 more
doaj   +1 more source

Beyond Well-Being: The Assessment of the Energy Renovation in Latvia by the Residents

open access: yesEnvironmental and Climate Technologies, 2023
Multi-family building renovation represents a key policy area at the same time, predominantly affects the daily life of residents. The paper tackles the energy renovations of multi-family buildings in Latvia.
Gončarovs Kirils, Jegiazarjana Karine
doaj   +1 more source

Boosting Photovoltaic Efficiency in Double Quantum Well Intermediate Band-Solar Cells through Impurity Positioning

open access: yesEnergies, 2023
The photovoltaic conversion efficiency of a single-intermediate band solar cell that incorporates a double quantum well structure consisting of GaAs/InAs/GaAs/InAs/GaAs embedded in the intrinsic region of conventional p-i-n structure is analyzed.
Angel E. Obispo   +2 more
doaj   +1 more source

INCREASING THE EFFICIENCY OF BOTTOMHOLE INJECTION WELL ZONE

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2018
It is necessary to know the mechanism of contamination of bottomhole injection well zone in order to choose the right exposure method and predict the interprophylactic period of operation of this well.
M. Ya. Khabibullin
doaj   +1 more source

Improvement of Steam Injection Efficiency in Horizontal Well with the Semi-Analytical Model: A Case Study of Liaohe Oilfield Steam Injection Well

open access: yesGeofluids, 2022
As China’s largest heavy oil field, Liaohe oilfield encounters many problems after long-term thermal recovery, including high water percentage at early production stage, steam channelling and water cresting.
He Zhang, Xiaofeng Zhou, Ao Zhang
doaj   +1 more source

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