An Operator’s View of the Choices for Deepwater Intervention

Browning, Greg; Moss, Jeff

doi:10.2523/99151-ms

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plans are underway to further enhance the FSV capability in near future to include wireline and slickline well interventions from the vessel using novel techniques 14,15 for deepwater -subsea riserless intervention system. This would enable the FSV to perform running of mechanical plugs for well suspension, deployment of insert valves to remediate faulty SCSSV, installation of isolation devices to remediate leaks and production logging for surveillance.…”

Section: No 6 -Intervention Readinessmentioning

confidence: 99%

Key Elements of Successful Well and Reservoir Management in the Bonga Field, Deepwater Nigeria

Sathyamoorthy¹,

Olatunbosun²,

Sabatini³

et al. 2009

All Days

View full text Add to dashboard Cite

TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractProduction from the deepwater Bonga turbidite reservoirs was started in November 2005. As with all waterflood and Enhanced Oil Recovery schemes, 'world-class' Well and Reservoir Management (WRM) is the foundation of a successful project. A comprehensive WRM plan was defined for Bonga very early in the project, and its implementation from start-up has demonstrated tremendous value.More than 220 MMstb have been produced as of March 2009 from 13 subsea producers, and reservoir pressures have been maintained by water injection from the start of production in 13 subsea high rate water injectors, allowing high field production rates to be sustained. Well and reservoir performance data obtained during the first three years of production, and information from 4 D seismic shot in early 2008 are now used to optimize the planning and drilling of additional wells as part of the Phase 2 development drilling project. Bonga is a 'brownfield' that is not immune to normal well and asset integrity issues, and declines in well injectivity and productivity. Ability to respond swiftly to these issues is part of the Bonga WRM Plan. This paper presents key elements of successful WRM in Bonga. These include people factor and cross discipline integration, Smart Fields ® capability, 'live' WRM Plan and monitoring, good understanding of subsurface, application of integrated production modelling, intervention readiness and effective well integrity management. The paper concludes on key learnings applicable to future deepwater waterflood projects.

show abstract

Section: No 6 -Intervention Readinessmentioning

confidence: 99%

Key Elements of Successful Well and Reservoir Management in the Bonga Field, Deepwater Nigeria

Sathyamoorthy¹,

Olatunbosun²,

Sabatini³

et al. 2009

All Days

View full text Add to dashboard Cite

show abstract

Coiled-Tubing Intervention and Drilling System Using Cost-Effective Vessels

Millheim

Williams

Yemington

2010

SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition

View full text Add to dashboard Cite

Deep water and ultra deep water intervention of wet trees has been a huge challenge for oil and gas producers. Currently, the only realistic way to do intervention is to use a conventional Mobile Offshore Drilling Unit (MODU) or intervention vessel (which is usually a smaller MODU) whether for a simple clean out or re-completing another producing interval. This is an extremely costly venture and the intervention is only scheduled when the economics of the operation are clearly justified.And even when the intervention is approved there is the problem of scheduling a MODU or intervention vessel. Sometimes the intervention can take months before a MODU or intervention vessel is available.There is a new enabling technology, using a Self Standing Riser, (SSR), where a coiled tubing intervention and drilling system could be deployed by a cost effective vessel (not a conventional MODU) with all the coiled tubing and related equipment on the vessel. The SSR design is such that it would attach to the subsea tree and provide the support and a circulation conduit for the coiled tubing to have full circulation capabilities back to the intervention vessel. The vessel, itself, would have station keeping capabilities for a significant period of weather conditions for the Gulf of Mexico. This paper presents the reasons why conventional and subsea coiled tubing approaches have been unable to provide a economically workable solution for coiled tubing intervention and drilling from wet trees in deep water. The paper describes a new system based on a SSR and a cost effective vessel (non MODU) design that could accommodate the coiled tubing equipment, and provide station keeping and support for the operations. The paper will discuss safety issues such as: the reliability and safety of the SSR, well control issues, emergency disconnects, and the event of a drive off by the vessel.Unless, this type of technology is developed and deployed millions of barrels of barrels of oil and gas will remain behind pipe. In other cases, some fields will not be developed because the need for on-going intervention coupled with high capital costs that will not meet the economic threshold to commission the development. 2 SPE 130688

show abstract

An Operator’s View of the Choices for Deepwater Intervention

Cited by 2 publications

References 0 publications

Key Elements of Successful Well and Reservoir Management in the Bonga Field, Deepwater Nigeria

Key Elements of Successful Well and Reservoir Management in the Bonga Field, Deepwater Nigeria

Coiled-Tubing Intervention and Drilling System Using Cost-Effective Vessels

Contact Info

Product

Resources

About