Assessment of the mechanical stability of high-angle wells in block 22/11, Nelson Field discovery

Kwakwa, K.A.; Batchelor, A.S.; Clarke, Rainbird

doi:10.1016/0148-9062(91)91585-f

Cited by 5 publications

(6 citation statements)

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“…The applicability of this equation to various formation types, including unconsolidated materials, is not known. However, rock mechanic calculations using measured rock parameters have been applied successfully to borehole stability problems relatexl to drilling and production activities in consolidated formations (Full et al, 1988;Fuh and Loose, 1989;Woodland, 1990;Fuh et al, 1991;Kwakwa and Batchelor, 1991).…”

Section: 22) Short Radius Articulated Motor Drilling Methodsmentioning

confidence: 99%

Applicability of petroleum horizontal drilling technology to hazardous waste site characterization and remediation

Goranson¹

1992

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Section: 22) Short Radius Articulated Motor Drilling Methodsmentioning

confidence: 99%

Applicability of petroleum horizontal drilling technology to hazardous waste site characterization and remediation

Goranson¹

1992

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“…The numerous successful field cases published since 1985 -e.g. [17][18][19][20][21]can be considered as prototypes of what a global industrial approach could be. This domain can be likened to "a field which has been appraised but remains to be developed economically".…”

Section: Rock Mechanics For Petroleum Engineering Todaymentioning

confidence: 99%

Rock mechanics characterization of deep formations: A technico-economical Overview

Santarelli¹

1994

Proceedings of Rock Mechanics in Petroleum Engineering

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Rock mechanics is a central component of many oil industry problems. The correct rock mechanics characterisation of formations in terms of behaviour is thus of paramount technical and economical importance. State-of-the-art characterisation relies upon core testing. After emphasizing the limits of such methods two field cases are used to show that the operational timing of the characterisation is of fundamental importance. To ensure the characterisation efficiency, it is suggested: i. to use data sources normally available during operation as part of a risk prevention policy; ii. to develop new measuring methods compatible with field practice. For both areas, specific examples are given.From this, it derives that the industrial challenge facing rock mechanics for the next decade is twofold:

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“…5). In all these analyses, physical formation logs and sampling records were used to confirm the test formations and survey data were used to define the well geometry at each test section.…”

Section: Block 9/13 In-situ Parametersmentioning

confidence: 99%

A Multidisciplinary Approach to In-Situ Stress Determination and Its Application to Wellbore Stability Analysis

Ottesen¹,

Kwakwa²

1991

Proceedings of SPE/IADC Drilling Conference

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Recent technical papers have demonstrated development flexibility, and the potential for increased ultimate hydrocarbon recovery resulting from the application of extended reach and horizontal drilling techniques. Serious mechanical borehole stability problems, principally borehole collapse and tensile fracturing, can be associated with the drilling of such wells. The threshold drilling fluid pressures for the onset of each mechanism depend on the earth stresses and the mechanical properties of the formations. Hence, there is the need for careful engineering assessments and planning prior to drilling these wells. In this paper the methods of approach used in determining the magnitudes of the principal in-situ stresses by collating geological, drilling,leak-off,logging, well test, mini-frac and laboratory test data are presented. The results formed the basis for a detailed assessment of the mechanical stability of a planned horizontal well in UKCS Block 9/13. This horizontal well was later successfully drilled from a semi-submersible drilling rig, utilising carefully tailored drilling fluid densities based on borehole stability analysis.

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Assessment of the mechanical stability of high-angle wells in block 22/11, Nelson Field discovery

Cited by 5 publications

References 0 publications

Applicability of petroleum horizontal drilling technology to hazardous waste site characterization and remediation

Applicability of petroleum horizontal drilling technology to hazardous waste site characterization and remediation

Rock mechanics characterization of deep formations: A technico-economical Overview

A Multidisciplinary Approach to In-Situ Stress Determination and Its Application to Wellbore Stability Analysis

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