1999
DOI: 10.1139/t98-089
|View full text |Cite
|
Sign up to set email alerts
|

Design implications of analytical and laboratory studies of permanent abandonment plugs

Abstract: We analyze analytically and numerically the stress distribution along the plug-rock interface and within an axially loaded plug emplaced in a borehole in rock. Experiments show that the interface strength increases with decreasing plug radius and with increasing plug length. Axial strength decreases as a power law of plug radius. An increase in the modulus ratio (ratio of plug modulus to rock modulus) increases the interface strength, until it levels off at a ratio of about 5.0. For short plugs, the tensile st… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2

Citation Types

0
2
0

Year Published

2004
2004
2023
2023

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 14 publications
(2 citation statements)
references
References 14 publications
0
2
0
Order By: Relevance
“…Generally, there is no macroscopic crack inside the cement plug of abandoned well, and the main failure mode is interface stripping (Akgün and Daemen, 1999). Several researchers have developed models to simulate cement interface debonding based on simplified models such as linear elastic casing, cement and rock, and initially complete cement rings.…”
Section: Introductionmentioning
confidence: 99%
“…Generally, there is no macroscopic crack inside the cement plug of abandoned well, and the main failure mode is interface stripping (Akgün and Daemen, 1999). Several researchers have developed models to simulate cement interface debonding based on simplified models such as linear elastic casing, cement and rock, and initially complete cement rings.…”
Section: Introductionmentioning
confidence: 99%
“…Carpenter et al [3] tested the cementing strength of cement sheath under high temperature and pressure, and found that the change of pressure or temperature would reduce the cementing quality of interface. Akgjun et al [4] analyzed the stress distribution of cement plug-rock interface under axial load by analytic method and numerical method.Chu Wei et al [5] calculated the elastic-plastic deformation of the composite body under continuous internal pressure by using analytical method and experimental method, and analyzed the law of the formation of the micro-annulus of the composite body. Li Jun et al [6] put forward that the ideal material property of cement sheath is high strength and low stiffness.…”
Section: Introductionmentioning
confidence: 99%