Titlebook: Safety in Offshore Drilling; The Role of Shallow D. A. Ardus,C. D. Green Conference proceedings 1990 Society for Underwater Technology 199

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Reidar Kanestrøm,Åshild Skålnes,Per Riste,Trond Eide,Sverre Strandenes

Nerve-Block

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Current Drilling Practice and the Occurrence of Shallow Gasd by shallow gas. This proportion is equally applicable over the recent past. During the period June 1988 to June 1989 shallow gas was responsible for four of the twelve blowouts that occurred. Fifteen people were killed in three of the four shallow gas blowouts. Drilling rigs were lost in all four

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Shallow Gas and Gas Seepages: A Dynamic Process?as accumulations can be considered as effectively static, unchanging for the duration of offshore operations, or dynamic. Shallow gas is frequently seen in association with seabed features, such as mud lumps, gas domes and pockmarks. These are considered to have been caused by the escape of gas thro

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High Resolution Seismic Source Specifications Applications and Misapplicationsnt in terms of the data quality which can be achieved if the specifications are properly applied. Over the past ten years it has been traditional that site surveys, and other similar projects involving the use of digitally-recorded high resolution seismic data, have not been regarded very highly by

DEBT

Enhanced Seismic Methods for Marine Hazard Surveyssing can yield remarkably well-defined images of the shallow geology in plan view. Examples of such images are presented showing features of small physical dimensions, as well as a number of responses that are presumed to represent gas hazards. The pictorial quality of intensity-modulated time slice

reaching

Field Quality Control of Marine Data Acquisition — Past, Present, Futuredge in a range of areas plus sound operational and commercial abilities..During the last three years however, there has been an increasing emphasis placed on new technical developments, many of which are based on the application of micro-computer technology. Specific examples of this are the use of

Pillory

Processing Procedures for High Resolution Seismic Dataconference will concentrate on the use of individual techniques such as attribute analysis etc.. The main problem with high resolution gas hazard surveys is the very short turnaround time, and therefore it is essential that the processing procedures are correct and that no spurious effects are intro

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Cognizance