Results 41 to 50 of about 26,044 (169)

Marching Fractures [PDF]

open access: yesScientific American, 1917
n ...
openaire   +3 more sources

Failure Mechanism of Rock Specimens with a Notched Hole under Compression—A Numerical Study

open access: yesApplied Sciences, 2021
Discontinuities are natural structures that exist in rocks and can affect the stability of rock structures. In this article, the influence of notch presence on the strength and failure evolution around a hole in compressed rock specimens is investigated ...
Amin Manouchehrian   +2 more
doaj   +1 more source

FRACTURES OF THE FEMUR

open access: yesAnnals of Surgery, 1916
This paper will treat the subject of simple fractures of the shaft of the femur in a general manner, laying down the principles applicable to the management of fractures in the several regions of the bone, or divisions ordinarily designated in the study and treatment of fractures of the femur.
openaire   +3 more sources

Study on Redistribution of Ground Stress under Fracturing Condition Based on FLAC3D

open access: yesShiyou jixie, 2021
The injection of fracturing fluid will lead to the redistribution of ground stress in reservoir, resulting in changes in external load and stress state of casing, and then affecting the strength safety of casing.
Zhang Ruiping   +4 more
doaj  

The evolution of the crustal stress state of the Catoca kimberlite pipe area (northeastern Angola)

open access: yesГеодинамика и тектонофизика, 2018
This paper presents the first results of the geostructural and tectonophysical studies of the crustal stress state in the Catoca kimberlite pipe area at the southwestern flank of the Kasai Shield in the northeasternAngola. In the evolution of the crustal
O. V. Lunina   +7 more
doaj   +1 more source

The Treatment of Fractures [PDF]

open access: yesSouthern Medical Journal, 1900
n ...
openaire   +1 more source

Analysis on Influential Factors of Casing Stress Based on Fracture Induced Stress Field

open access: yesShiyou jixie, 2023
The staged fracturing of horizontal well creates artificial fractures, and the resulting fracture induced stress field affects the distribution of casing stress.In order to identify the influential factors of casing stress under the action of fracture ...
Yang Zhao   +3 more
doaj  

Remediation of the Old Ecological Load in the Protected Area of the Morava River – Re-abandonment of the Oil and Gas Production Wells

open access: yesRudarsko-geološko-naftni Zbornik, 2015
The presence of the former oil and gas producing wells that are or can be improperly abandoned creates a possible environmental hazard in terms of contamination of the groundwater and soil in the present.
Petr Bujok   +7 more
doaj   +1 more source

SELECTION OF THE OPTIMAL TECHNOLOGY TO PREVENT SAND PRODUCTION, TAKING INTO ACCOUNT ROCK DECONSOLIDATION IN THE BOTTOMHOLE FORMATION ZONE

open access: yesRudarsko-geološko-naftni Zbornik
This article presents studies on the selection of the best sand control option, technologically based on the application of the method of fixing the bottomhole part of the well system with polymerized proppant, which will prevent the destruction of the ...
Larisa Churikova   +4 more
doaj   +1 more source

Practical results of scattered waves using for prediction of fractures zones and evaluation of faults conductivity concerning oil and gas field

open access: yesИзвестия высших учебных заведений: Нефть и газ
The main task in the modern development of the oil industry in in each area is creating a rational strategy for the exploration and hydrocarbon production.
V. I. Kuznetsov
doaj   +1 more source

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