Results 21 to 30 of about 102,181 (202)

Theoretical Analysis of Proppant Embedment and Fracture Conductivity in Fractured Reservoir [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Proppant embedment mainly accounts for diminishing fracture aperture and conductivity. The conductivity decrease could greatly restrict fluid flow, thereby affecting the well performance. In this paper, new mathematical models are derived to calculate the proppant embedment and fracture conductivity after hydraulic fracturing ...
Youyu Wan   +9 more
openaire   +1 more source

Percolation of single-walled carbon nanotubes in ceramic matrix nanocomposites [PDF]

open access: yes, 2004
The percolation of carbon nanotubes (CNT) in an electrical insulating ceramic is studied for the first time. The in situ synthesis of the CNT (0.2–25 vol%) by a CCVD route allows to achieve their homogeneous distribution in the spinel matrix.
Capria, Ennio   +4 more
core   +4 more sources

Experimental and numerical investigations of proppant pack effect on fracture conductivity of channel fracturing

open access: yesEnergy Science & Engineering, 2020
Channel fracturing technology has been previously applied in the field; however, there are few studies on the shape and distribution pattern of the proppant pack and its effects on fracture conductivity.
Jianchun Guo   +4 more
doaj   +1 more source

Remote Detection of Saline Intrusion in a Coastal Aquifer Using Borehole Measurements of Self-Potential [PDF]

open access: yes, 2018
Funded by NERC CASE studentship .
Allen D.   +4 more
core   +2 more sources

A Method to Improve Computational Efficiency of Productivity Evaluation with Rectangular Coalbed Methane Reservoir

open access: yesGeofluids, 2022
Computational efficiency is the key factor to be considered in the productivity evaluation of rectangular coalbed methane reservoir. There are three main factors affecting the calculation speed: the nonlinearity of the material balance equation of ...
Li Chen   +5 more
doaj   +1 more source

Morphological evolution and flow conduction characteristics of fracture channels in fractured sandstone under cyclic loading and unloading

open access: yesInternational Journal of Mining Science and Technology, 2023
In coal mining, rock strata are fractured under cyclic loading and unloading to form fracture channels. Fracture channels are the main flow narrows for gas.
Quanle Zou   +6 more
doaj   +1 more source

Review on the possible tool materials for friction stir welding of steel plates [PDF]

open access: yes, 2014
The friction stir welding (FSW) process is mainly used in industrial applications for joining low melting temperature materials such as aluminium and magnesium. FSW has many advantages in comparison with conventional fusion arc welding.
De Waele, Wim   +4 more
core   +1 more source

A mathematical model and semi-analytical solution for transient pressure of vertical fracture with varying conductivity in three crossflow rectangular layers

open access: yesEnergy Exploration & Exploitation, 2019
This paper first describes a mathematical model of a vertical fracture with constant conductivity in three crossflow rectangular layers. Then, three forms of vertical fracture (linear, logarithmic, and exponential variations) with varying conductivity ...
Jie Liu   +3 more
doaj   +1 more source

An experimental study of salt/heat transport in a fracture-matrix system based on the resistivity method

open access: yesShuiwen dizhi gongcheng dizhi, 2023
In order to explore the effectiveness of salt and heat tracers in a fracture-matrix system, a fracture-matrix test model is designed. The tracer tests with different tracers are carried out.
Rui DING   +4 more
doaj   +1 more source

Development of carbon fiber acrylonitrile styrene acrylate composite for large format additive manufacturing [PDF]

open access: yes, 2020
The increasing interest of Large Format Additive Manufacturing (LFAM) technologies in various industrial sectors mainly lies on the attainable production of pieces reaching several cubic meters. These new technologies require the development of optimized
Casal, Víctor   +4 more
core   +1 more source

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