Abstract: This invention relates to a method of treatment and disposal of drilling waste, contaminated sediments and residual waste including the steps of providing drilling waste, contaminated sediments, residual waste or other disposable material, grinding or crushing the material, mixing the material with at least one binder, using material exhibiting a maximum particle size of less than 5 mm; transferring the mixture to a disposal device placed in a benthic zone and allowing the mixture to cure in the disposal device. A disposal facility formed by the method of this invention is described.

Abstract: A method and device for recovering drilling fluid used in connection with the provision of a subsea well, in which the drilling fluid is circulated from a vessel on a sea surface via a drill string and out through a drill bit into an annulus which is defined by a borehole and the drill string. The device includes a filtering device which is connected, in respect of fluid, to an annulus and which is arranged to contain drill cuttings and drilling fluid. A fluid line extends from a portion of the filtering device to the vessel, the fluid line being arranged to carry drilling fluid which has been separated from the drill cuttings back to the vessel.

Abstract: This invention relates to a method of treatment and disposal of drilling waste, contaminated sediments and residual waste including the steps of providing drilling waste, contaminated sediments, residual waste or other disposable material, grinding or crushing the material, mixing the material with at least one binder, using material exhibiting a maximum particle size of less than 5 mm; transferring the mixture to a disposal device placed in a benthic zone and allowing the mixture to cure in the disposal device. A disposal facility formed by the method of this invention is described.

Abstract: A method and device for recovering drilling fluid used in connection with the provision of a subsea well, in which the drilling fluid is circulated from a vessel on a sea surface via a drill string and out through a drill bit into an annulus which is defined by a borehole and the drill string. The device includes a filtering device which is connected, in respect of fluid, to an annulus and which is arranged to contain drill cuttings and drilling fluid. A fluid line extends from a portion of the filtering device to the vessel, the fluid line being arranged to carry drilling fluid which has been separated from the drill cuttings back to the vessel.