Predictive Upheaval Buckling Analysis - September 2002
GeoLine has been awarded a contract by Technip-Coflexip Aberdeen to carry out predictive upheaval buckling analysis, 6” gas pipeline, Dutch sector of the southern North Sea. Tender support.
The upheval buckling analyses were done using the Download Monitoring System (DMS). DMS is a finite element method for rapid assessing the amount of backfill or rock dump required for a given load case.
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DMS Analysis Results (OOS analysis) |
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Upheaval Buckling Analysis - 26" Gas Pipeline - February 2003
GeoLine has been awarded a contract by Mærsk Oil and Gas AS to carry out upheaval buckling analyses to determine minimum required trenched backfill for imperfection profiles with heights between 0.1m and 0.5m in steps of 0.1m
The pipeline to be analysed is a a 26” gas pipeline between Tyra WE platform in the Danish sector of the North Sea to NOGAT F3 platform located in the Dutch sector of the North Sea.
In total 40 imperfection profiles were analysed assuming natural and actual half impefection wavelengths.
COWI A/S and GeoLine sign co-operation agreement - July 2002
GeoLine and COWI A/S (COWI) have recently signed a co-operation agreement, where GeoLine is to support COWI in the fields of offshore pipeline and geotechnical engineering services.
COWI is one of the largest engineering consultancy companies in Denmark.
SAGE Profile Software v. 6.2 Developments - June to Decemeber 2002
GeoLine has been awarded a contract by Thales GeoSolutions (formerly know as SAGE Engineering) SA/NV to carry out SAGE Profile finite element software v.6.2 developments. This included modifications to the finite element engine in Fortan and finalisation of the advanced viewer in VB6.
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Meet GeoLine at OTC 2003 in Houston 5-8 May
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You can meet GeoLine at booth nr. 4173.
Driving Monopiles into Weak Rock - August 2002
GeoLine has been awarded a contract by Hydro Soil Services NV to carry
out a desk study "Driving Monopiles into Weak Rock".
On-bottom roughness analysis - 18" Gas Pipeline - January 2003
GeoLine has been awarded a contract by Genesis Oil and Gas Consultant Ltd to carry out a full on-bottom roughness analyses and span analysis for a 18” gas pipeline. Seven Heads Project.
The on-bottom roughness analysis was carried out using advanced finite element software taking into account environmental loadings from current and waves and soil-pipeline interaction from varying seabed soils. Three load cases are analysed i.e. empty, waterfilled and operational. A "true" loading sequence is used model the in-situ behaviour of the pipeline.
Pile Capacity Back Analysis - September 2002
GeoLine has been awarded a contract by Technip-Coflexip Aberdeen to carry out a pile capacity back analysis - Guillemont West Field, North Sea.
The work included:
- review of geotechnical and geophysical investigation reports
- predicting soil resistance to driving from as-meassured pile driving records (blow count v depth and hammer effeciency v depth)
- driveability back annalysis
- assessment of ultimate bearing capacity
Pile Driveability Assessment Check - June 2002
GeoLine has been awarded a contract by Mærsk Oil Qatar AS to carry out pile driveability assessment check for 8 jacket platforms located in the MOQ
Al-Shaheen field offshore Qatar. The Jackets are installed by HHI in South
Korea.
The work includes review of the geotechnical data (borehole logs, CPT profiles and laboratory soil test data) for the driveability design soil profile, soil resistance during driving (SRD) analyses and wave equation analyses.
GeoLine at Wind Power Europe - December 2002
GeoLine and Hydro Soil Services NV presented at a joint paper on the topic "Driving Monopiles into Glacial Till" at Wind Power Europe held in Madrid 9-10th Decmeber 2002.
Content of the paper included:
- Installation experience from Utgrunden and Samsø windfarm
- Driveability analyses
- Back analyses of pile driving records
You may download the paper here <Driving Monopiles into Glacial Till>
Pile Driveability Assessment of Monopiles for North Hoyle Windfarm and Frederikshavn Wind Turbines - March 2002
GeoLine has been awarded a contract by Hydro Soil Services NV to carry out pile driveability assessment for the North Hoyle windfarm located offshore North Wales in Liverpool Bay Irish Sea. The contact furthermore included pile driveability assessment for Frederikshavn wind turbines.
The work includes review of geotechnical data (borehole logs, CPT profiles and laboratory soil tests) for the driveability design soil profile, soil resistance during driving (SRD) analyses and wave equation analyses.
Predictive Upheaval Buckling Analysis - November 2002
GeoLine has been awarded a contract by Technip-Coflexip Aberdeen to carry out predictive upheaval buckling analysis for a 10” gas pipeline, Dutch sector of the southern North Sea. Tender support.
Three types of cover requirements were investigated:
- backfill soil (trenched pipeline)
- spot rock dump (open trench)
- Combination of both
The upheval buckling analyses were done using the Download Monitoring System (DMS). DMS is a finite element method for rapid assessing the amount of backfill or rock dump required for a given load case.
SAGE Profile training for John Brown Hydrocarbons Ltd - February 2002
GeoLine has been awarded a contract by Thales GeoSolutions SA/NV to carry out a joint SAGE Profile training program for John Brown Hydrocarbons Ltd (formerly Kvaerner) in London.
Pile Driving Back Analysis - March 2003
GeoLine has been awarded a contract by Mærsk Oil Qatar AS to carry out a back analysis out pile driving records for 7 jacket platform locations installed offshore Qatar in the MOQ Al-Shaheen field.
Upheaval Buckling Analysis - 24" Gas Pipeline - February 2003
GeoLine has been awarded a contract by Mærsk Oil and Gas AS to carry out upheaval buckling analysis for a 24” interconnection gas pipeline between Halfdan C platform and Tyra WE platform located in the Danish sector of the North Sea.
In total 40 imperfection profiles were analysed assuming natural and actual half impefection wavelengths and imperfection heights between 0.1m and 0.5m.
