Oil & Gas Drilling Glossary - IADCLexicon.org
Undisturbed undrained shear strength.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsUndrained shear strength of the top strong clay.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsUndrained shear strength corresponding to the level of the sand plug base.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsShear strength intercept at the layer’s surface.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
Shear strength at the back flow depth hc.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsFootprint undrained shear strength.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsShear strength intercept at the clay layer’s surface in strong overlying soft soil.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
Undrained shear strength averaged from (h – ht) to (h + hplug).
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsA process where a spudcan is initially emplaced away from the center of an old footprint and then the spudcan is used to displace soil towards the old footprint at desired positions to widen the disturbed region. In soft to stiff clay, stomping is very effective in mitigating spudcan footprint interaction.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsA suitably stored, small amount of soil for visual inspection and laboratory testing for the determination of the soil unit geological provenance, characteristics and geotechnical engineering design parameters.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsDuring preloading the hull is held with minimal draft or air gap and the preload is incrementally increased on all the legs simultaneously.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsChemically correct ratio of air to fuel capable of perfect combustion with no unused fuel or air.
Source: API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global StandardsAn assessment for the purposes of determining security risk.
Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global StandardsA SRA is a risk assessment for the purposes of determining security risk.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsThe likelihood of a threat successfully exploiting vulnerability and the resulting degree of damage or impact.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsA document that describes an owner's/operator's plan to address security issues and related events, including security assessment and mitigation options. This includes security alert levels and response measures to security threats.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsAlso known as concentric "rings of protection," a concept of providing multiple independent and overlapping layers of protection in depth. For security purposes, this may include various layers of protection such as countersurveillance, counterintelligence, physical security, and cyber security. A second consideration is the balance of the security measures such that equivalent risk exists regardless of the threat's pathway or method.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsHypothetical situation comprised of an intentional act, an assumed threat, a set of consequences, and associated countermeasures to address the scenario.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsAny device, system, or action that either would likely interrupt the chain of events following an initiating event or that would mitigate the consequences.
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global StandardsProcess designed to alter the surface of a material to achieve a desired property such as hardness or corrosion resistance.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global StandardsSubordinate unit consisting of two or more components assembled for incorporation as an integral portion of a tool, which may be independently performance tested before its integration.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global StandardsControlled heating of material to a predetermined temperature for the purpose of reducing any residual stresses.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global StandardsDistance between the rotary table and the lower most part of the surface test tree.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global StandardsA location where equipment is inspected, repaired, and tested to maintain supplier/manufacturer’s specifications.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards