Results 11 to 20 of about 1,131,526 (296)

A study of fatigue crack propagation in quenched and tempered and controlled rolled HSLA steels. [PDF]

open access: yes, 1987
A range of HSLA steels reflecting the two major processing routes, quench and tempering and controlled rolling, have been tested in fatigue to assess their potential wider application in the offshore Industry.
Callister, D. R.
core   +7 more sources

A Numerical Study of Hydraulic Fracture Propagation Geometry in a Layered Shale Reservoir

open access: yesGeofluids, 2022
An unconventional shale reservoir commonly develops multiple layers and shows strong anisotropy in mechanical properties, which has a great effect on hydraulic fracture propagation geometry.
Lei Zhang, Yu Jin, Zhuo Dong, Ruifu Yuan
doaj   +1 more source

Theoretical Analysis of the Mechanism of Fracture Network Propagation with Stimulated Reservoir Volume (SRV) Fracturing in Tight Oil Reservoirs. [PDF]

open access: yesPLoS ONE, 2015
Stimulated reservoir volume (SRV) fracturing in tight oil reservoirs often induces complex fracture-network growth, which has a fundamentally different formation mechanism from traditional planar bi-winged fracturing.
Yuliang Su   +4 more
doaj   +1 more source

Simulation Study on Interactive Propagation of Hydraulic Fractures and Natural Fractures in Shale Oil Reservoir

open access: yesFrontiers in Earth Science, 2022
Natural fractures are developed in the shale oil reservoir, and the hydraulic fracture (HF) morphology is complex. The fracture shape can be inverted by using fracture propagation numerical simulation technology, which provides guidance for fracturing ...
Fuchun Tian   +5 more
doaj   +1 more source

Modeling weak snow layer fracture in propagation saw test using an ice column model

open access: yesArctic, Antarctic, and Alpine Research, 2022
Fracture initiation and propagation in a weak snow layer are two primary processes of the slab avalanche formation process. This study proposes a model for the weak snow layer and investigates the fracture propagation process.
Agraj Upadhyay   +2 more
doaj   +1 more source

Fluid-Solid Coupling Mechanism of Shale Hydraulic Fracture Propagation Based on True Triaxial Test and Numerical Analysis [PDF]

open access: yesLithosphere, 2023
Hydraulic fracture propagation has a great influence on reservoir reconstruction in shale gas exploitation. The study on mechanism of hydraulic fracture propagation is important.
Bohu Zhang   +4 more
doaj   +1 more source

Simulation of hydraulic fracture initiation and propagation for glutenite formations based on discrete element method

open access: yesFrontiers in Earth Science, 2023
The existence of gravels in the glutenite formations leads to the complex geometries of hydraulic fracturing propagation and difficult construction in fracturing engineering. To study the hydraulic fracturing propagation law of glutenite formations, this
Peng Tan   +19 more
doaj   +1 more source

Fracture Propagation

open access: yes, 2023
AbstractIn previous theories regarding hydraulic fracture propagation, it is usually assumed the fluid pressure within the hydraulic fracture is constant in the calculation of the surrounding stress field. The actual fluid pressure during fracturing process, however, is often fluctuating, due to the disturbance of the irregular surface of rock fracture
Yu Zhao, Yongfa Zhang, Pengfei He
openaire   +1 more source

Hydraulic Fracture Propagation and Proppant Transport Mechanism in Interlayered Reservoir

open access: yesEnergies, 2023
Hydraulic fracture is crucial for assuring well production from unconventional reservoirs. For the optimization of hydraulic fracture geometry and the ensuing production of an interlayered reservoir, vertical hydraulic fracture propagation path has been ...
Jue Wang   +3 more
doaj   +1 more source

Buoyancy-driven crack propagation: the limit of large fracture toughness [PDF]

open access: yes, 2007
We study steady vertical propagation of a crack filled with buoyant viscous fluid through an elastic solid with large effective fracture toughness. For a crack fed by a constant flux Q, a non-dimensional fracture toughness K=Kc/(3μQm3/2)1/4 describes the
Roper, S.M.   +3 more
core   +1 more source

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