Deepwater Riser Services, a division of Morrison, delivers rigorous inspections, critical maintenance and convenient storage options for drilling risers. Our services span the full life cycle of the riser, offering a one-stop-shop for our clients requiring riser inspection, transportation, maintenance, repair and storage services for marine ...

This paper presents an overview of the design methodology and manufacturing of a New Generation of Deepwater (Drilling) Risers, NGDR, that were developed for ultra-deepwater drilling with a new generation of DP drillships and semisubmersibles.

The primary focus of this study is deepwater steel catenary riser (SCR) and flexible catenary riser (FCR) systems. Figure 1.1 illustrates the types of floating production units associated with such riser systems.

Apr 30, 2001 · The riser survey identified more than 50 emerging concepts under development for deepwater and ultra-deepwater applications. These concepts can be organized into roughly 10 groups. The most common are towers, hybrids, and those using lighter materials, all providing reduced topside loads.

Nov 14, 2021 · Deepwater risers are one of the important facilities for deepwater oil & gas development and the link between subsea wellheads and a unit at sea surface. For the sake of description, deepwater risers can be classified as production riser and drilling riser according to their functions and configurations.

• Emphasize the criticality of conducting analysis of drilling risers in deepwater environments; • Highlight drilling riser monitoring as a key integrity management tool; • Discuss briefly the strides in development of alternatives to conventional deepwater drilling riser systems.

2 days ago · Deepwater drilling riser is the key equipment connecting the subsea wellhead and floating drilling platform. Due to complex marine environment, vortex-induced vibration (VIV) will be generated on riser, which will induce fatigue failure and even cause unpredictable drilling accidents. Therefore, it is important to study the VIV characteristics ...

Deepwater Riser Systems TLR System n TLR Riser System: ØFPSO motions de-coupled using a submerged steel buoy supporting SCRs and flexible jumpers to the turret ØCan accommodate a large number of risers ØDe-coupling effective ⇒ buoy motions are small ØSCR’s not affected by the 100-year hurricane or fatigue environments

The integrated MPD riser joint for deepwater MPD comprises the riser gas handling system from Cameron, a Schlumberger company, and the M-I SWACO below-tension-ring rotating control device.

This paper presents the preliminary riser system design and cost evaluation for a new built turret moored FPSO system in 1,370 meters (4,500 feet) water depth in the GoM.

Dec 20, 2024 · In the world of offshore oil and gas exploration, risers are a critical yet often overlooked component that bridges subsea infrastructure and surface facilities. These dynamic systems play a pivotal role in ensuring the efficient and safe transfer of fluids, making them indispensable in deepwater and ultra-deepwater operations.

Riser Feed One (1) NOV Riser Catwalk Machine, CWM-R55-90-HS Maximum capacity 60.6 st. (55 mt). (2) Riser gantry cranes 30mt. Mud Pumps Four (4) NOV 14-P-220 AC triplex pumps, 7,500 psi, each driven by two (2) x GE 1,150hp 57kW motors plus space for a fifth optional pump HP Mud System Rated 7,500 psi

Deepwater drilling riser analysis provides a means for identifying the critical stages of the drilling program and enables strategies to be developed to combat loss of riser operability.

Careful consideration of riser pressure end load effects, PEL, on both auxiliary lines and main tube seals. • Loop current and VIV effects on the riser; • Hurricane abandonment strategies require emergency disconnect systems, riser hang-off and centralizing; • Gas migration into the riser and deepwater well control issues require gas ...

Nov 1, 2010 · Two new ideas that have been utilized in recent years are Free Standing Hybrid Riser (FSHR) and Offset Steel Catenary Risers (OSCR). Both offer following significant improvements in performance in deepwater environment: Construction and installation schedule is independent of the floating platform.

Fundamentals of Riser Engineering Analysis Steel Catenary Risers Top Tensioned Risers & Hybrid Risers Design Flexible Risers & Umbilicals Drilling Riser Engineering Rise Material, Fabrication, NDE & Installation Deepwater Riser Projects and Lessons Learned

May 31, 2005 · The two main riser solutions for deepwater fields are hybrid riser towers (HRT) and steel catenary risers (SCR). In 2001, three HRT systems were installed as part of the Girassol development offshore Angola.

Jan 1, 2001 · Metallic catenary risers (MCRs), flexible risers, and other riser concepts are widely used in deepwater drilling and production. The uses of risers in large offshore platforms in the Norwegian North Sea are discussed in this chapter.

Nov 3, 2019 · Nonmetallic, thermoplastic composite pipe (TCP) technology can now be found in every oil and gas region globally and can operate at pressures of up to 12,500 psi, and in water depths as low as 3000 m. The focus is now on developing and …

A system for riser management has been developed and used that comprises (1) a variable buoyancy system, (2) hardware to hang off a disconnected marine riser near the keel of a drillships (3) a heave acceleration prediction capability, (4) instrumentation for monitoring heave acceleration and riser buoyancy, tension, pressure, vibrations, and ...

The Single Line Offset Riser (SLOR™) & the Concentric Offset Riser (COR) are 2H Offshore developed risers for deep water utilizing a freestanding steel section.