Results 21 to 30 of about 21,765 (305)

An Approach to Calculating Casing Bearing Capacity with Parabolic Deformation Characteristics Under Local Radial Loading

open access: yesEnergies, 2020
In the process of waterflooding technology in the Jilin oilfield, local radial compressive stress caused by rock deformation results in local casing collapse. According to statistics regarding casing-deformation characteristics, a certain number of these
Wanchun Zhao   +4 more
doaj   +1 more source

A CASE OF RECTAL DEFORMITY. [PDF]

open access: yesThe Lancet, 1900
n ...
openaire   +1 more source

Cold hydraulic expansion of oil well tubulars [PDF]

open access: yes, 2011
Peer ...
Akisanya, Alfred Rotimi   +3 more
core   +1 more source

Analysis on Casing Deformation Characteristics in Perforation and Slip Section of Wells in Fuling Shale Gas Block

open access: yesShiyou jixie, 2023
After sectional multistage fracturing of shale gas old wells in Fuling block,the casing seriously deforms in the slip section,which affects the later optimization and stimulation effect; furthermore,there is little analysis on the deformation ...
Yi Xianzhong   +6 more
doaj  

Numerical analysis of the fluid-structure interaction in a membrane pump [PDF]

open access: yes, 2010
In this research, the fluid-structure interaction in a recently developed membrane pump is analysed. The governing equations for the laminar flow and for the deformation of the membrane are solved with two separate codes, which are coupled with the quasi-
Annerel, Sebastiaan   +4 more
core   +2 more sources

Awareness of the Light Field: The Case of Deformation

open access: yesi-Perception, 2012
Human observers group local shading patterns into global super-patterns that appear to be illuminated in some unitary fashion. Many years ago, this was noticed for the case of uniform, unidirectional illumination. Recently, we found that it also applies to convergent and divergent illumination flows, but that human observers are blind to rotational ...
van Doorn, Andrea J.   +3 more
openaire   +6 more sources

Study on the Mechanical Mechanism and Prevention Method of Casing Moving up: Taking the Jidong Oilfield as an Example

open access: yesGeofluids, 2022
In the production process of oilfields, the proportion of oil and water wells scrapped or overhauled by casing moving up continues to increase, especially in some onshore oilfields near the coast, which is more prominent.
Yan Zhou   +7 more
doaj   +1 more source

A Novel Hydraulic Thick-walled Phantom for the Assessment of Left Ventricular Function [PDF]

open access: yes, 2007
C
Claessens, Tom   +5 more
core   +2 more sources

Prediction of the lifespan of cement at a specific depth based on the coupling of geomechanical and geochemical processes for CO2 storage [PDF]

open access: yes, 2019
The injection of carbon dioxide (CO2) captured from combustion-based processes into underground formations is one of a number of plausible methods to reduce its release into the atmosphere and consequential greenhouse gas warming.
Bagheri, Mohammadreza   +2 more
core   +1 more source

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