Results 51 to 60 of about 273 (162)
Fracture Modeling of Shale Oil and Gas Reservoirs in Texas
Formation fracturing is the method of choice for developing shale oil and gas reservoirs that constitute a gigantic resource in the U.S.A. and many other countries but are characterized by a low permeability in the nano-Darcy range. The oil production of
Shihui Gao +2 more
doaj +1 more source
This paper investigates the strength characteristics and fracture propagation process of coal and rock under bending load. The evolutionary rules of strain energy for coal and rock were calculated and obtained. The fracture mechanism of coal and rock was discussed by analyzing the critical strain energy release rate. Abstract This study aimed to assess
Xiaogang Li +4 more
wiley +1 more source
Background The effective coalbed methane (CBM) exploitation using hydraulic fracturing wells is severely constrained by two major solid-phase production issues: coal fines blockage and proppant flowback.
Fengsan ZHANG +8 more
doaj +1 more source
Long‐term fracture conductivity in tight reservoirs
The fracture conductivity decreases with the increase of displacement time under the displacement of formation water and fracturing fluid, and the decrease of fracture conductivity under the displacement of fracturing fluid with time is greater than that of formation water displacement. The conductivity increases with the increase of sand concentration,
Chuanliang Yan +4 more
wiley +1 more source
Feasibility of Proppant Flowback Control by Use of Resin-coated Proppant
Proppant flowback is a problem in Xinjiang oilfield. It decreases production rate of a fractured oil well, corrodes surface and downhole facilities and increases production costs. Curable resin-coated sand is a common technique to control proppant flowback.
Guoying Jiao +5 more
openaire +1 more source
Hydraulic fracturing is a conventional practice for production enhancement in low production and damaged wells. Proppant flowback has been a concern in hydraulic fracturing since proppant began to be used as fracture supporting material.
A VARELA, N SAAVEDRA
doaj
Research and Application of Fiber Carrying Proppant Fracturing Technology in Eastern Ordos Basin
When conventional fracturing technology is used to conduct fracturing in the gas reservoirs of eastern Ordos Basin, some problems such as low gas flow rate, poor rate maintenance capability and difficult development often occur.
Hu Guangming, Ji Suibo, Gao Yu
doaj
To address the challenges of low permeability, high gas adsorption, and a fragile structure in coalbed methane reservoirs, this study developed a high-strength composite proppant with an activated carbon skeleton via nitric acid pretreatment, silica ...
Kai Wang +6 more
doaj +1 more source
During the production of deep coalbed methane (CBM) after fracturing, the output of coal fines and proppants is prone to occur, leading to a decline in well productivity.
Ruili ZHOU +3 more
doaj +1 more source
Fracturing with carbon dioxide: Application status and development trend
Stimulation principles, construction techniques, equipment requirements and technical features of liquid carbon dioxide fracturing were summarized, and the existing problems and development trend of this technology were discussed.
He LIU +4 more
doaj +1 more source

