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Record W2027478450 · doi:10.2118/151204-ms

Collaborating on Real-Time Geomechanics across Organizational Boundaries

2012· article· en· W2027478450 on OpenAlexaff
L. Magini, D. Molteni, F. Zausa, N.. Fardin, Wiliem Pausin

Bibliographic record

VenueIADC/SPE Drilling Conference and Exhibition · 2012
Typearticle
Languageen
FieldEngineering
TopicDrilling and Well Engineering
Canadian institutionsSchlumberger (Canada)
Fundersnot available
KeywordsGeomechanicsWirelineTrippingOperator (biology)Well loggingPetroleum engineeringComputer scienceGeologyEngineeringMechanical engineeringGeotechnical engineering

Abstract

fetched live from OpenAlex

Abstract Real-time geomechanics techniques contribute to managing the risks and challenges faced during the realization of a well, providing, in particular, decision-making support to drillers for managing the safe mud-weight window and wellbore instability and for bridging knowledge of the rocks’ mechanical properties to drilling practices. Wellbore instability is often not caused by geomechanical conditions alone and is, in many cases, caused by the combination of geomechanics and the drilling process. This paper describes the application of real-time geomechanics to a remote exploration project located in a challenging field and how operations benefited from this technique. A previously drilled well in the field presented serious wellbore instability issues during tripping. The instability was suspected to have caused problems during the wireline logging phases, which made it impossible to complete the formation evaluation program. The stakeholders were based in four different locations: the rig site, the operator’s office, the operator’s real-time center and the service company’s real-time center. Interaction among stakeholders was coordinated through the operator and service company real-time centers. The use of available infrastructure and remote collaboration software created a collaborative environment that successfully supported the operator’s decision-making process, with the following specific achievements: well total depth selection based on maximum allowable equivalent circulation density before incurring in losses; avoidance of wellbore instability events during drilling, tripping or logging phases; and first operator to achieve successful wireline fluid sampling in the deeper formation of this field.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.008
metaresearch head score (Gemma)0.012
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.008
Threshold uncertainty score0.045

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0080.012
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0020.003
Scholarly communication0.0060.005
Open science0.0020.010
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0080.002

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.219
Teacher spread0.209 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations3
Published2012
Admission routes1
Has abstractyes

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