Journal ArticleDOI
An Analytical Solution for Microannulus Cracks Developed Around a Wellbore
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This article is published in Journal of Energy Resources Technology-transactions of The Asme.The article was published on 2015-11-01. It has received 36 citations till now. The article focuses on the topics: Displacement (orthopedic surgery).read more
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CDEM-based analysis of the 3D initiation and propagation of hydrofracturing cracks in heterogeneous glutenites
TL;DR: In this paper, a numerical model was used to represent the actual heterogeneous structure of a physical specimen, and the initiation position and process of propagation of cracks influenced by geostress differences and heterogeneity was discussed.
Journal ArticleDOI
Analysis on integrity of cement sheath in the vertical section of wells during hydraulic fracturing
TL;DR: In this paper, an analytical model considering the well completion steps is established to study the integrity of cement sheath as a two-layer casing-cement system, and the effect of mechanical and geometrical parameters of casing and cement are further investigated through a sensitivity analysis.
Journal ArticleDOI
Analysis of the influence of cement sheath failure on sustained casing pressure in shale gas wells
TL;DR: In this paper, a novel elastic-plastic model incorporating the effects of drilling, cementing, and dramatic temperature change of the well system during the hydraulic fracturing is established to describe the stress of cement sheath.
References
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Book
A treatise on the mathematical theory of elasticity
TL;DR: Webb's work on elasticity as mentioned in this paper is the outcome of a suggestion made to me some years ago by Mr R. R. Webb that I should assist him in the preparation of a work on Elasticity.
Journal ArticleDOI
Slightly curved or kinked cracks
Brian Cotterell,James R. Rice +1 more
TL;DR: In this paper, a solution for the elastic stress intensity factors at the tip of a slightly curved or kinked two-dimensional crack is presented for the deviation of the crack surface from a straight line and is carried out by perturbation procedures analogous to those of Banichuk [1] and Goldstein and Salganik [2, 3].
Journal ArticleDOI
Matrix fracture in fiber-reinforced ceramics
TL;DR: In this paper, the critical conditions for the onset of widespread matrix cracking are studied analytically on the basis of fracture mechanics theory, and theoretical results are compared with experimental data for a SiC fiber, lithium-alumina-silicate glass matrix composite.
Journal ArticleDOI
CO2 Sequestration in Deep Sedimentary Formations
Sally M. Benson,David R. Cole +1 more
TL;DR: Carbon dioxide capture and sequestration (CCS) in deep geological formations has recently emerged as an important option for reducing greenhouse emissions as discussed by the authors, and if CCS is implemented on the scale needed to make noticeable reductions in atmospheric CO2, a billion metric tons or more must be sequestered annually, a 250 fold increase over the amount sequestered today.
Journal ArticleDOI
Degradation of well cement by CO2 under geologic sequestration conditions.
TL;DR: The cement cured at 50 degrees C and 30.3 MPa exhibited a shallower depth of degradation and displayed a well-defined carbonated zone as compared to cement cured under ambient conditions, likely due to smaller, more evenly distributed Ca(OH)2(s) crystals that provide a uniform and effective barrier to CO2 attack.
Related Papers (5)
Three-dimensional analysis of cement sheath integrity around Wellbores
W. Wang,A. Dahi Taleghani +1 more