RT-PTN-03.5 (Company Profile Nov 2011 Linkedin)

RiserTec

RiserTec

Company Profile

Certificate No. 6161ISO 9001

RT-PTN-ADM-3.5 Slide No. 1HP Ti Drilling Riser – Heidrun TLP

Contents

Background to Company SoftwareSoftware Training Engineered ProductsEngineered Products Engineering Consultancy Example Projects Example Projects

Teal Guillemot Dynamic Umbilical

RT-PTN-ADM-3.5 Slide No. 2

w/ back-to back Bend StiffenersEither side of Clump Weight

RiserTec Background

Formed 2003

Riser, Pipeline, Mooring, Structural & HydrodynamicsIndependent Consultancy 10 Engineers Independent Consultancy, 10 Engineers

Offices in Aberdeen UK and Houston Texas

High Tech Problems/Solutions High Tech Problems/Solutions

ISO 9001 certified for engineering design & software

Sponsors: Huntly Nordic, Aberdeen Kidsafe, Aberdeen Orchestra p y , ,


Jotun Turret System

RiserTec Background

Principals have over 70 years Combined Project Experience

Principals lead all Jobs

Complete SYSTEM Approach (Risers, Vessel, Moorings, Flowlines, Flow Assurance, Installation, Monitoring, Operation etc)etc)


Strake VIV Testing

Technical Software

Orcaflex – Riser TD Analysis

ABAQUS – General Purpose FEA ABAQUS General Purpose FEA

SolidWorks – 2D/3D CAD & Solid modeling Simulation SolidWorks FEA (Linear & NL) Simulation – SolidWorks FEA (Linear & NL)

Shear7 – VIV Response Analysis

AQWA – Diffraction / Ship Dynamics

CWEAR – Riser & Casing Wear Analysis

R-Code – Fracture Mechanics Assessments

MathCad – General Purpose Technical Calculations

MATLAB – Mathematics Laboratory


In-house Software 1

RTRiser FD 2D FD Riser Analysis (regular / random waves)

RTBeam Tensioned Beam Analysis

RTCode Riser & Pipeline Stress Checks to DNV & API

RTLife Rainflow Fatigue Analysis

RT5500 Buoyancy Tank Design & Optimisation to BS 5500

RTFracture Fracture Assessment to BS7910 & R6RTW W C l l ti (I t f d / ABAQUS) RTWear Wear Calculations (Interfaced w/ ABAQUS)

MAP FD/TD Riser & Mooring Analysis (Developed w/ CU)

Bend StiffenerDesign Using

RTBend4

6Displaced Shape

46.5

62Angle

) 0.225

0.3Curvature

/m)

0

2

4

Y (m

)

0

15.5

31

Ang

le (d

eg)

0

0.075

0.15C

urva

ture

(1/


0 1.2 2.4 3.6 4.8 6

X (m)0 2 4 6 8

0

s (m)

0 2 4 6 80

s (m)

In-house Software 2

RTFrame 2D/3D Frame Analysis

RTLayout Riser Layout Utility (Catenary Calculations)

RTStress Stress Joint Profile Optimisation

RTContact Pipe-in-Pipe Contact Forces

RTCrossing Pipeline Crossing and Upheaval Buckling Analysis

RTVIV VIV Analysis (Interfaced w/ ABAQUS)

0.1 10

Stress JointDesign using

RTSt

0.06

0.08

ral D

efle

ctio

n (m

)

6

8

Stre

ss (M

Pa)

RTStress

0 5 10 15 20 25 300

0.02

0.04

Ris

er L

ater

0

2

4

Ben

ding

S


NodesElements

Elevation Above Base Flange (m) 0 5 10 15 20 25 300

Elevation Above Base Flange (m)

Engineering Design - 40 Year Ago

Engineering Design Process

TheoryHand Calcs

PhysicalTestingHand Calcs Testing


Today

Engineering Design Process

TheoryHand Calcs

VirtualTesting

PhysicalTestingHand Calcs

(MathCad)Testing

(FEA/CFD)Testing


Or Is It This?

TheoryHand Calcs

VirtualTesting

PhysicalTestingHand Calcs Testing Testing


Or Even This?

TheoryHand Calcs

VirtualTesting

PhysicalTesting

2 t f 3 R lRT-PTN-ADM-3.5 Slide No. 11

2 out of 3 Rule

Training

Introduction to Riser Systems Fundamentals of Riser Engineering

R i d T i R ti TR

g g

( )SEEW

Required Tension Ratio = TR

oT

( )MUDWoToT

( )REW

API 16Q Min Tension

( )REW

E

( ) ( )SE Ro E ET W TR W ( ) ( )R MUD

o ET W W

0ET


Engineered Products

Static Bend TestDynamic Fatigue Test


Engineered Products


Consultancy

New / Challenging Designs New / Challenging Designs

Design optimisation

Back Analysis (Structural Integrity / Code Calibration) Back Analysis (Structural Integrity / Code Calibration)

FEED studies

CVA, Verification (Parallel), ( )

Technical Authority

Long-term Relationships

L6L2

L1 L3 L5 L7

Riser L4PLET


ABAQUS Model

Gap1 – 17.5 mm

Gap2 – 85 5 mmInner Bend

Ring

Outer Bend Stiffener

Gap2 85.5 mmInner BendStiffener Position

Inner BendGap3 – 0.5 mmHead

θInner Bend Stiffener Gap4 – 7.5 mm

Contact Slide Line


T

Contact Force by position (max over all angles)

Inner Bend StiffenerFully In

Inner Bend Stiffener

Fully In

Inner Bend StiffenerFully Out

RingRingBottom of

Outer Bend S iff


Stiffener

Strake VIV Testing - 1

For BP Sunbury

Planning of Test Program

Supervision of Tests

Extraction of Hydrodynamic Coef

Summary Reporty

Shear7 Calibration

200 T T k


200m Tow TankAt Oceanic

Strake VIV Testing - 2

Test Cylinder Fittedyw/ Strakes

Surface Plot for


Su ace ot oLift Coef CL

Shear7 Calibration - 1

NDP High ModeNDP High ModeVIV Test RigAt Marintek

For BP SunburyModel Test Rig Model Test Rig

Shear7 calibration against NDP VIV Testagainst NDP VIV Test Data


Clump Weight

Shear7 Calibration - 2

Small-ScaleVIV Strakes(17.5D Pitch)

5D VIV Strakes Fitted5D VIV Strakes FittedTo Test Riser


Insensys Strain Mat FAT

4 Point Bend Rig4-Point Bend Rig

Axial Rig


Thermal Test

Jack Ryan DR Back Analysis

For BP Sunbury

GlobalSantaFe GSF Jack Ryan

22” DR w/ Fairings, 750m WD

3 Acceleration Loggers 3 Acceleration Loggers

Concurrent Current

Fairings Worked well Fairings Worked well


Strake Roller Box Testing

For BP Atlantis Project

Development Engineering

Witness all Tests as BP Rep

Interface w/ Project Interface w/ Project


DD2 Drilling Riser Back Analysis

2000m water depth

Measured Accelerations & Strains

RiserTec, 2H, MIT

Various Back Analysis Methods

D(Strains) >> D(Accelerations)D(Strains) >> D(Accelerations)


Signal to Noice Checks

Check signal to noise ratio between selected unfiltered signal pairs

a) Logger 1, channel 1 v Logger 2, channel 1 f SNR( ) RTsnr 1 1( ) 2 1( ) fs n r W( )( ) ( ) ( )( )

100

1 104

s 1 1( )1

10

100

SNR

0.01 0.1 1 100.01

1s 2 1( )

f

0.01 0.1 1 100.01

0.1

1SNR

ff f

b) Logger 1, channel 1 v Logger 2, channel 3 f SNR( ) RTsnr 1 1( ) 2 3( ) fs n r W( )

100

0 1

10

1 103

s 1 1( )

s 2 3( )0 1

1

10

100

SNR

0.01 0.1 1 101 10 3

0.1

f

0.01 0.1 1 100.01

0.1

f


Thunder Horse OE SCR Monitoring

Thunder Horse OE SCRVerify Wavelength to Strain Conversion Verify Wavelength to Strain Conversion

Establish Clean Database

Data Screeningg

Correlations

Calibrate against Design Models

Structural Integrity

Recommendations


Sensor Locations


Measured Storm Event

10

11

8

9)

7

8

ed H

s (m

)

5

6

Mea

sure

3

4

80 80.5 81 81.5 82 82.5 832

Time from 20/08/2009 (days)

RT-PTN-ADM-3.5

( y )

8-Nov-2009 12noon 10-Nov-2009 12noon

Measured v Model Strains

100SS15

100SS16

100SS17

Max S1-S4 20min std strain

60

80

ms(

) 60

80

ms(

) 60

80

ms(

)

During Storm EventMeasuredModelled

0 20 400

20

40rm

0 20 400

20

40rm0 20 40

0

20

40rm

in

0 20 40 0 20 40 0 20 40

100SS18

100SS19

100SS20St

ra

60

80

ms(

) 60

80

ms(

) 60

80

ms(

)

0 20 400

20

40rm

0 20 400

20

40rm

0 20 400

20

40rm

RT-PTN-ADM-3.5

0 20 40Hs (ft)

0 20 40Hs (ft)

0 20 40Hs (ft)

Hs

MARS Production System

Vessel Design Space

1) Offset Distance: 25-350m

2) Percentage of Slack in Line: 1-9%0% Slack

3) End of Buoyancy Section: 79-99% along line

4) Buoyancy Section Length: 6-30% of

Buoyancy SectionLength

4) Buoyancy Section Length: 6-30% of line

End ofBuoyancy Section

Load Matrix

1) Still water

Offset 2) Near / Far / Cross Current

RT-PTN-ADM-3.5

Off t 25 B E d 94% Off t 50 B E d 94% Off t 75 B E d 94%

Design Optimisation - Riser Curvatureen

gth

Rat

ioOffset=25m, Buoy End=94%

0.2

0.25

0.3

0.35

0 4

0.6

0.8

1Offset=50m, Buoy End=94%

0.2

0.25

0.3

0.35

0 4

0.6

0.8


0.2

0.25

0.3

0.35

atur

e 1/

m

0 4

0.6

0.8

1

Buo

y Le

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

Cur

va

0

0.2

0.4

engt

h R

atio

Offset=100m, Buoy End=94%

0.2

0.25

0.3

0.6

0.8


0.2

0.25

0.3

0.6

0.8


0.2

0.25

0.3

atur

e 1/

m

0.6

0.8

1

Buo

y Le

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

Cur

va

0

0.2

0.4

ngth

Rat

io

Offset=175m, Buoy End=94%

0.2

0.25

0.3

0.6

0.8


0.2

0.25

0.3

0.6

0.8


0.2

0.25

0.3

ture

1/m

0.6

0.8

1

Slackness

Buo

y Le

n

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

Slackness

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

0

0.2

0.4

Slackness

1 1.02 1.04 1.06 1.08

0.05

0.1

0.15

Cur

vat

0

0.2

0.4

RT-PTN-ADM-3.5

Buoyancy Study

U if BUniform Buoyancy

15 Modules 35 Modules

RT-PTN-ADM-3.5

120

Buoyancy Study

100

1.2010

15

0.80

1.00

m)

20

25

30

Number ofBuoyancy

0.60

0.80

atur

e (r

ad/m

35

40

Modules

0.40Max

Cur

va 45

50

MaxAll

0.20

Allow

Smeared

0.003 5 7 9 11 13

RT-PTN-ADM-3.5

3 5 7 9 11 13Bending Stiffness (kN.m̂ 2)

Heidrun TLP Thru Tubing Drilling

RT-PTN-ADM-3.5

ConocoPhillips 10ksi Drilling Riser

50

60

70

80

t)

Measured BM

10

20

30

40

RM

S

My(

klbf

.f t

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10

Frequency (Hz)

Mode 1 Mode 2

10-1

ra (

m2 se

c) 10-1

ra (

m2 se

c)

10-3

10-2

Wa

ve S

pe

ct

10-3

10-2

Wav

e S

pec

t

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 110

-4

Frequenecy (Hz)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 110

-4

Frequenecy (Hz)


Equal Area Geometric Progression

Cascade & Chinook

UUJ

TL

ML

BL

LUJ


Cascade & Chinook FSHR

Harmonic Force sin(2 )F f t Select lock-in region (BC) Loop current range of interest (VCCS)oop cu e ge o e es (VCCS) For each current speed apply harmonic VIV force (CL=0.5,

S=0.2) Generate steady state Frequency Response Functions (FRFs)Generate steady state Frequency Response Functions (FRFs) Repeat for both IL & CF directions

2

3

p (m

)Uc1 Uc10

45

90

135

se (d

eg) Uc1 Uc10

1

BC

Am

p

90

45

0

BC

Vel

Pha

0 0.5 1 1.5 20

Current (m/s)

0 0.5 1 1.5 2135

Current (m/s)

BRT-PTN-ADM-3.5 Slide No. 38

Cascade & Chinook FSHR

150

180PR - Bend Angle 0.4deg

180

200

30

60

90

120

g) ge (M

Pa)

120

140

160

-90

-60

-30

0

(d

eg

Stre

ss R

ang

40

60

80

100

RT-PTN-ADM-3.5 Slide No. 39-500 -400 -300 -200 -100 0 100 200 300 400 500

-180

-150

-120

S (mm)

0

20

40

Geoprober DrillingGeoprober Drilling

GeoSOS

GeoSOS7-5/8 CSG

16” Conductor

7-5/8” CSG


FLAGS Pipeline Hot-Tap FEED Study

For Shell

Joint Venture w/ Genesis ABAQUS Model Joint Venture w/ Genesis

Concept SelectionFEED Engineering

Of Hot-Tap Tee

FEED Engineering

Developed Design MethodologyMethodology

Detailed FEA of Hot-Tap Tee

Fracture Assessments

Technical Assistance to SShell during Detailed Engineering


Consultancy - Flexible ProjectsRecent Flexible Projects

Ithaca Stella FEED Study for Stella & Hurricane.

Cameron MARS Production System Cameron MARS Production System

Orlando tie in to Ninian Central FEED (with KW) for VisionOil and Gas

Installation of new water injection riser at Ninian South /recovery of old riser for EPC

Waste water export line for BP Valhall using Manuli Hose for Waste water export line for BP Valhall using Manuli Hose forMooring Systems

Chevron Alder FEED Study High Pressure 8in (800Bar)flexible riser (+WI/GE/Umb) onto Sevan FPSO

RT-PTN-ADM-3.5

Summary

Independent Consultancy

Riser, Pipeline, Mooring, Structural & Hydrodynamics

High Tech Problems/Solutions

Advanced Analysis & Design Coupled with Practical Advanced Analysis & Design Coupled with PracticalExperience

Strong R&D EmphasisSt o g & p as s

Training

Technical Software Technical Software

RiserTec ProductsHi h Add d V l f Cli t High Added Value for Client


Why RiserTec ?

P i i l t k L d E i l Principals take Lead Engineer role

Extensive Project Experience

Strong in-house Technical Software Library

Use of Design Automation / Optimisation

Laboratory & Field data provides reality check


Selected Projects - 1

Project Client RiserTec ScopeAKPO SCR Bid Engineering HMC , Leiden Detailed analysis and system engineering supporting AKPO bid engineering. Scope

included production of SCR Design Methodology Document, initial sizing for all in-field flowline and risers, detailed fatigue assessments for critical lines, strength d i d li i t ti tdesign, and preliminary cost estimates.

Strake VIV Hydrodynamic Testing BP, Sunbury Planning and management of free and forced vibration VIV tests at Oceanic, Newfoundland. The test program included commercial CRP strakes with 5D and 16D pitch as well as 17.5D strakes from BP Thunder Horse Project. Involved with all aspects of the program from initial planning through to supervision of tests and p p g p g g pextracting of hydrodynamic added mass and lift coefficients as required for input to VIV design programs.

Snorre Tie-back Riser FEED Study RTI Energy Systems, Houston

Detailed analysis and design of future tie-back risers to be installed on the Snorre TLP for additional production, gas injection and water injection service. Due to existing topside restrictions, available tensions budgets were limited requiring low tension ratio designs to be investigated in detail. Performed detailed directional g gfatigue assessement and associated profile designs for both single-piece and double-piece lower stress joints. Produced all system and component drawings with associated weight estimates. Also undertook additional FEED extension study investigating several alternative riser dimensions as requested by Statoil.



Heidrun Workover Riser Slim-Line Drilling Operations

Statoil, Norway Performed initial conceptual and final detailed engineering for slim-line drilling operations on existing Heidrun TLP workover riser system. The work considered both single and dual completion risers under through tubing drilling operations. As a consequence the planned operation is perfromed with the surface wellhead and tree in place requiring the use of a reduced length workover spool up to the drilling riserin place requiring the use of a reduced length workover spool up to the drilling riser tensioner system. To reduce moments in the system, several stack-up configurations, including some with one or more flex-joints, were investigated. Detailed fatigue and strength assessments were then undertakena for the prefered arrangement. A detailed contact force study was also completed and the results used to assess expected wear rates in critical components. Also interfaced with RTI Energy Systems in Houston who were presponsible for component manufacture andEnergy Systems in Houston who were presponsible for component manufacture and procurement.

Shear7 Calibration BP, Sunbury Calibration of Shear7 against Norwegian Deepwater Program (NDP) High Mode Strake VIV Tests. The scope included review of NDP test arrangement and generation of models to extract natural frequencies and associated mode shapes. A program was then generated to extract all measured results from the Marintek d t b d t ti ll i t d t il d Sh 7 l l ti T iddatabase and automatically compare against detailed Shear7 calculations. To aid the comparisons, several bias and index functions were defined. A detailed methodology for undertaking the calibration was also developed and used to perform the initial work. It was noted that the measured results indicated several features that shear7 in its current form is unable to account for in detail. A verification study was also performed for the shear7 program using and independent in-house calculation. Finally several sets of Shear7 design parameters for project use under various strake cover conditions were derived for input in BP VIV Guidelines..

Atlantis in-Field SCR Monitoring Requirements

BP Atlantis Project Detailed risk review and assessment of requirements for riser monitoring on the Atlantis in-field SCRs. Performed detailed risk assessment and interfaced with several vendors with respect to available monitoring options. Recommended outline p g pmoitoring specifications for the in-field pipe-in-pipe production SCR.



Jotun A - Marine Growth Study Esso Norge A/S Detailed assessment of the Lazy Wave and Lazy-S systems designs' of an increasein marine growth substantially above the original design criteria. The work involvedmodelling of the Lazy wave and Lazy-S systems in Orcaflex and comparing thesystem behaviour with the original detailed design. Working with client to achieveacceptable system behaviour and benchmark system response against measured

XY

Z30 mO rcaF lex 8.3a: AS1_NER13_100_Em p.DAT (m odif ied 18:57 on 22/03/2005 by O rcaF lex 8.3a) (azimuth= 295; elevat ion= -11) Statics Complete

acceptable system behaviour and benchmark system response against measuredvalues.

FLAGS Hot Tap Genesis, Aberdeen Detailed FEED study for Hot-Tap on 36" FLAGS Gas pipeline in North Sea. The scope included review of different hot-tap methods, detailed Finite Element analysis including all phase of the operation from branch welding to removal of coupon, and assessment of stress level in the system. A non-linear FEA model was also developed for use against strain based design criteriadeveloped for use against strain based design criteria.

Rosa Lirio Bundle Tow SaiBOS, Paris Detailed analysis and fatigue assessment for towing of the Rosa Lirio bundle towersystem. Considered different weather directions and optimised towing configurationsin terms of tensions, tow procedures, net buoyancy and speed. Finalrecommendations led to the adoption of the Surface Tow method being adopted forrecommendations led to the adoption of the Surface Tow method being adopted forproject use.



Strake Roller Box Tests BP Atlantis Project BP representative for strake roller box mechanical tests performed at Heriot-Watt University, Edinburgh. The scope of testing included various strake designs and materials under a range of roller loads. Produced summary report together with recommendations for design improvements for several of the strake configurations.g p g

BAOBAB Project - Installation Analysis Manifolds and Suction Anchors

Technip Carried out detailed assessment of the installation of the Manifolds and SuctionAnchors for Baobab in up to 900m water depth. Results were bench-marked againstactual crane measurements from offshore. Developed and assisted client in allaspects of procedures and analysis for installation.XY

Z2 0 mOrcaFlex 8.3a: PA2_8T14_5_180deg _sub.sim ( modified 14:13 on 31/12/2004 by OrcaF lex 8.3a) (azimuth=294; elevation=5) R eplay T ime: 2.50s

p p y

Simian Sapphire Project - Span Assessment of Installed Sapphire Pipelines

Technip On bottom roughness assessment for all Sapphire lines from 4in MEG Injection linesto 26in Export line. Automated assessment of spanning and through life pressuretemperature cycling and VIV to DNV F101 and F105 codes using ABAQUS 2D/3Dmodelling of the seabed Eventually analysed over 80Km of lines and umbilicalsmodelling of the seabed. Eventually analysed over 80Km of lines and umbilicals.Fracture assessment to BS7910 of Umbilical cores for as-installed condition andcrack growth assessment.



Deepstar 7402 Empirical Benchmarking Study

Deepstar RiserTec was a participant in this benchmarking study of the Lake Seneca test dataagainst SHEAR7 for both 'open' and 'blind' test cases as part of the Deepstar JIP onriser VIV

Dalia Project - Jumper VIV Technip Paris Contract involved the detailed assessment of a complicated spool geometry forpotential VIV The spool was analysed using ABAQUS and the potential for VIVpotential VIV. The spool was analysed using ABAQUS and the potential for VIVassessed using the in house 'power balance' package RT_VIV which was furtherdeveloped as result of the requirements of this project. In addition developed a'radial' method for the assessment of the complicated modal response of thecomplicated structure. Developed and assisted client in all aspects of procurementof strakes and determining critical coverage requirements.

Geoprober Drilling Riser System Design Geoprober The Geopropber system enables "slim" deepwater exploration and appraisal wells to Aberdeen be drilled for significantly less money than would be the case using a "conventional"

approach - the cost savings will amount to 50% or more. Typically a 4 3/4" hole will be drilled through the reservoir. RiserTec has provided riser system design and analysis for Geoprober to prove feasibility including the tensioner and stress joint design for different operating climates around the world.

Geo prober

Drilling Ltd .


g


Algodoal Drilling Riser VIV Back Analysis BP, Sunbury Detailed back analysis of the 22" drilling riser working on the Algodoal well offshore Brasil in 750m of water. Due to strong currents in the region the drilling riser had been fitted with VIV suppression fairings and instrumented with a small number of accelerometers. Current profiles throughout the water column were also measured. Ri T i d ll d t d f d d t il d b k l i f thRiserTec reviewed all data and performed a detailed back analysis of the measure riser response against Shear7 predictions. From this work the efficieny of the fairings was determined.

Holstein TTR S09 Back Analysis BP Sunbury Detailed back analysis of Holstein SPAR Top Tensioned Riser S09 response based on detailed measurements including riser accelerations, current profiles and vessel motions. Assessed derived keel motions based on measured cellar deck

l ti d d d i ifi t d t i ti d taccelerations and recommended significant upgrade to existing procedure to improve data. Assessed riser response against vessel motion and VIV excitations and estimated associated fatigue damage rates.

Qualification and FAT testing for Insensys Strain Mats

BP Atlantis Project Acted as BP site representative for Qualification and FAT testing of two Insensys fibre optic strain guage mats for the BP Atlantis project. Involved in specification and set up of axial, bend and thermal tests and basic checks of results. Undertook detailed spectral analysis of time history data to determine instrumentation noise levels under various constant load conditions.



BP Drilling Riser DD2 Fatigue Verifications

BP America Independent verifications of BPs RAE contractors fatigue assessemnts for the BP drilling riser DD2 in the Gulf of Mexico. The study scope includes an independent Modal analysis to determine riser response based on measured accelerometer data. Several different modal methods will be assessed and calibrated using a theorectical gOrcaflex model of the riser. RiserTec's wave transfer function method for converting measured acceleration directly into currvature based on the wave equation solution for the riser will also be assessed.

C/WOR Clamp Analysis FMC, Norway Assessemnt of umbilical clamp on Completetion and Work over Riser during riser running operations. In particular the integrity of the clamp under various impact scenarios was assessed and recommendations made for suitable qualification testing.g

Cascade & Chinook Riser Tower Bid Support

Petrobras America RiserTec is undertaking an independent review and analysis of the Free Standing Hybrid Riser (FSHR) Towers for the Petrobras Cascade & Chinook Development. RiserTec is also providing support to Petrobras during the Riser bid evaluation phase.



BP QUAD 204 Re-development Study Genesis, Aberdeen RiserTec is providing riser engineering support to Genesis for the BP QUAD 204 (Schiehallion) re-development study. The work involves developing riser concepts for new FPSO, SEMI (based on Thunder Horse) and TLP (Based on Heidrun) options including layouts and basic riser specificationS as well as cost and schedule estimates.


RT-PTN-03.5 (Company Profile Nov 2011 Linkedin)

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