.... These fluids use the extra hydrostatic pressure of the brine to lower the surface treating pressure. 1 , 2 , 3 However, some of the hydrostatic advantage from the brine density of these fluids is lost due to the additional friction caused by this same increase in density. This friction increase has...

... on perforation design (limited entry vs. high perf. design) has several benefits: lowering of "Perforation Friction" (Pf), lowering of treatment pressures, larger flow across each perforation, fewer chances of a screen-out, uniform drainage, and engineered completions where larger EHD perforations can be placed...

... be substantially reduced. This study shows how the development of axial restraint forces is complex, with shear (‘friction’) at the pipe-berm and pipe-soil interfaces influenced by system settlement. We examine the restraint provided by rock berms through three phases of centrifuge model testing. Phase 1 isolates...

... pipeline movement. In areas where seabed scour occurs and pipeline embedment is limited, the lateral resistance is frictional due to the lack of passive resistance from the seabed. High temperature, high pressure (HPHT) subsea pipelines displace axially along the seabed during expansion and contraction...

... or gas being transported during operation. The expansion is resisted by the pipe-soil interface friction resulting in an axial stress along the pipeline, which can then yield vertical (upheaval buckling) or lateral (lateral buckling) translations depending on the path of least resistance. Pipeline...

...-stressing process and operation. piping simulation friction contraction operation upstream oil & gas displacement inline bulkhead fe model offshore pipeline insulation bulkhead outer pipe piping design pip system inner pipe pipe design temperature end expansion pre-stressing...

.... friction trilobe tank lng tank moss tank thermal load displacement loading condition gas monetization design wave cradle stiffness matrix midstream oil & gas full model liquified natural gas load case lng tank interface wall time interface force contact problem linearized model...

... Abstract The Prelude FLNG facility anchoring system is based on a turret with 16 anchor legs, each connected to driven anchor piles in generally very weak and variable carbonate soils. Driven piles have a chequered history offshore Australia, due to the very low skin friction that is typically...

... of piles following driving. actual srd back analysed soil property hammer efficiency upstream oil & gas pile capacity hammer pile 4 srd subsea system mooring system strength driving resistance resistance self-weight penetration assessment soil property friction offshore...

... High levels of friction, especially in horizontal and extended-reach operations, can be a major concern during sliding or rotating. Friction increases drag, which increases the required torque and weight on bit (WOB), thereby reducing efficiency. Other related issues include excessive tool...

... strength sleeve friction investigation cpt 2 friction residual strength test result wind energy upstream oil & gas sleeve friction value degradation shear strength jardine cptc test overconsolidated clay reservoir characterization displacement procedure shear strength degradation...

... Abstract This paper presents experience and best practice for a new geotechnical laboratory test protocol – the low stress interface shear box (ISB) test – for determining soil properties relevant to pipeline-seabed friction. The paper is underpinned by a major database (>200 tests...

... technology conference reduce cost scale test crj pv condition requirement mooring system upstream oil & gas friction contact force material design process seawater fiber rope contact pressure polymer resistance Flory , John F. , Banfield , Stephen J. , and Berryman...

... to sustain differential movement along the fault without developing a leak source to contaminate the environment. friction slip velocity internal pressure offshore pipeline kennedy offshore technology conference failure mode analytical approach upstream oil & gas fault movement magnitude...

... will be made for optimizing the treatment process. offshore technology conference coiled tubing wireline gun sand jet completion installation and operations upstream oil & gas sand jet perforator multistage hydraulic hydraulic fracturing friction entry hole diameter india perforation...

... for flexible riser analysis including dynamics and frictional contact mechanics. The effect of coefficient of friction on the predicted substrate stress distributions and fatigue life of the nub-groove region of flexibles has been investigated. It is shown that coefficient of friction has a significant effect...

... chain inverse offshore technology conference friction information mooring system subsea system friction coefficient API RP 2SK ( 2005 ). Recommended Practice for Design and Analysis of Station Keeping Systems for Floating Structures Bhattacharjee , S. , Majhi , S.M...

... through the design and operation of a pipeline. randolph offshore pipeline axial resistance soil strength resistance input parameter modeling consolidation mitigation measure friction assessment strength upstream oil & gas engineering embedment offshore technology conference soil...

... systems (small loads, water depths in excess of 10,000m) to propose a holistic approach that considers the characteristics of the rope and winch as a whole rather than as separate elements. friction synthetic rope steel wire subsea processing riser traction winch synthetic fibre rope upstream...

... Abstract This paper describes and explores the effects of geotechnical variability and uncertainty on the design of pipelines for thermal buckling and axial walking. Geotechnical input parameters – ‘friction factors’ – are often assigned extremely wide ranges between low estimates (LE...