... and geotechnical aspects of the effects of the gas emanation on the foundation soil properties for four boreholes. Around the site, geotechnical studies in 1978, 2008 and 2011 were conducted for foundation design of platforms. First, it was found that the water content and unit weight of the clay and sand...

... sensor low logistics auv operation sss pipeline inspection scope platform upstream oil & gas acquisition offshore pipeline mbe route survey military application stable platform vehicle requirement application survey tool artificial intelligence pipeline inspection...

... category silt catalonia soil investigation geotechnical engineering technical university positioning water depth upstream oil & gas sampler minidrill drilling operation investigation deployment site investigation recovery geoscience platform ABSTRACT The paper...

..., al- beit their relative densities did differ at given depths. At Skiff, 0.762m-diameter piles were installed and at the Caravel site, a 4.2m-diameter monopile was used. 2.1 Skiff The Skiff platform is located in Block 48/20 of the southern North Sea in the UK sector. It forms part of SHELL s Sole Pit...

... Abstract Piles used for oil platform foundation in Bohai Gulf, China, are usually over 100m long and 2m in diameter. Such long piles have to be manufactured in segments before installation because of transformation and hoisting difficulties. The segments of the pile are assembled during...

... of settings on the recovered sediment. 2. Method 2.1 Devices and sensors The stationary piston corer of the R/V Le Suroît consists of a 994kg weight and a 10m steel tube with a plastic liner (maximum recoverable length of sediment of 9.55m), as well as a platform for the release or triggering arm linked...

...Proceedings of the 6th International Offshore Site Investigation and Geotechnics Conference: Confronting New Challenges and Sharing Knowledge, 11 13 September 2007, London, UK 205 1. Introduction The Troll A Platform is a huge concrete gravity-based struc- ture (GBS) located in the Norwegian trench...

... ABSTRACT The Troll A platform in the Norwegian trench rests on a huge gravity-based structure (GBS) with 36m deep concrete skirts. The GBS was installed by skirt penetration into a seabed of normally consolidated clay in May 1995. A comprehensive structural and environmental monitoring system...

...Proceedings of the 6th International Offshore Site Investigation and Geotechnics Conference: Confronting New Challenges and Sharing Knowledge, 11 13 September 2007, London, UK 293 1. Introduction Installing jack-up platforms at sites where previous instal- lations have left seabed craters can...

... sector, southern North Sea (Figure 1). The Skiff platform is an innovative slim-line design that was installed with a jack-up rig in April 2000 immediately before the wells were drilled (Figure 2). The jacket structure was placed on the seabed and tied back to the rig whilst the piled foundations were...

... published1, and commenced sponsorship of a joint industry research project at Imperial College into shaft capacity that lasted ten years and culminated in the publication of a design guide2. As a result of this work Shell U.K. Limited (Shell) has not used API RP2A3 pile design methods for platform foun...

...Proceedings of the 6th International Offshore Site Investigation and Geotechnics Conference: Confronting New Challenges and Sharing Knowledge, 11 13 September 2007, London, UK 399 1. Introduction The Yolla A Platform was installed in the central Bass Strait (Figure 1a) of Australia in March 2004...

... offshore site investigation investigation operation requirement mobilisation geotechnical site investigation site investigation personnel competence site manager drilling equipment knowledge soil condition upstream oil & gas contractor client representative platform...

... resistance platform tank communication upstream oil & gas heave whch platform removal element analysis platform base maureen platform compartment remedial measure upward movement elevation removal process geotechnical aspect underbase compartment surcharge central...

... farm platform sustainability geophysical survey upstream oil & gas scour foundation social responsibility wind energy site investigation reservoir characterization programme turbine developer consideration assessment offshore wind farm project foundation design desk study wind...