The WILDCAT sensor is being developed to provide long range, laser standoff detection of chemical agent vapor and aerosol clouds by DIAL and range-resolved cloud mapping by DISC. The sensor is composed of two major subsections, including a telescope/gimbal assembly and a laser/beam diagnostics section that are held in alignment with a surrounding truss system and electrically-actuated, closed-loop mirrors. The entire assembly is integrated into a transportable, 30 ft long container that is field operable. The laser is a pulsed CO2 type with output energies of 1 J at a repetition rate of 100 Hz an it uses an agile grating to access approximately 60 lines over the 9.2-10.7 im band, also at a 100 Hz rate. The telescope/gimbal subsection is composed of a 60 cm dia telescope mounted to a yoke gimbal which provides for full hemispherical scans. The sensor includes a data acquisition system composed of 12 bit, 30 MHz analog-digital converters and a digital signal processor that maintains a running average data stream for each range bin. Algorithms allow for real-time data processing and radar displays of chemical concentration.
World regulators and authorities began almost 40 years ago to develop regulations for decommissioning offshore installations. The regime established reflects a balance between the need to protect the environment, navigation safety, fishing and other users of the sea and takes into account the safety of workers, technical feasibility and cost. When all factors are considered the current regime is strict, comprehensive and allows the coastal state authorities to exercise discretion with a case-by-case approach.
This paper discusses the evolution of the global and regional Regulatory Regime for the decommissioning of disused oil and gas production platforms and other installations. The last part of this paper puts the regulatory aspects of the issue discussed into context.
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