Abstract:
Applicants have created a method and system of deep sea mining comprising mining SMS deposits from the sea floor with a subsea miner, pumping the solids from the subsea miner through a jumper and pumping the solids from the jumper up a riser to a surface vessel. Further, applicants have created a method of deploying a deep sea mining system, comprising stacking a riser hangoff structure on top of a subsea pump module forming an assembly; picking up the assembly by a hanging mechanism, hanging the assembly on a moon pool, attaching a first riser joint; disconnecting the riser hangoff structure from the assembly; and attaching at least one second riser joint to form the riser.
Abstract:
A method of anchoring one or more load carrying components of an elongate subsea structure, such as a flexible pipeline or umbilical, to a termination or end fitting, comprising the steps of: inserting said load carrying component(s) into or through a cavity or void within the termination; and filling said cavity or void with a filler material whereby said load carrying component(s) are embedded and anchored therein; wherein said filler material comprises spheroidal beads.
Abstract:
Applicants have created a method and system of deep sea mining comprising mining SMS deposits from the sea floor with a subsea miner, pumping the solids from the subsea miner through a jumper and pumping the solids from the jumper up a riser to a surface vessel. Further, applicants have created a method of deploying a deep sea mining system, comprising stacking a riser hangoff structure on top of a subsea pump module forming an assembly; picking up the assembly by a hanging mechanism, hanging the assembly on a moon pool, attaching a first riser joint; disconnecting the riser hangoff structure from the assembly; and attaching at least one second riser joint to form the riser.
Abstract:
In this method, the LNG stream is cooled using a refrigerating fluid in a first heat-exchanger. The refrigerating fluid is subjected to a second semi-open refrigeration cycle which is independent of the first cycle. The method comprises a step for introducing the stream of sub-cooled LNG into a distillation column and a step for recovering a stream of gas at the top of the column.The second refrigeration cycle comprises a step for forming a stream of refrigerating fluid from a portion of the top stream of gas, a step for compressing the stream of refrigerating fluid to a high pressure, then a step for expanding a portion of the stream of compressed refrigerating fluid in order to form a substantially liquid sub-cooling stream. The substantially liquid stream is evaporated in the first heat-exchanger.
Abstract:
The disclosure provides an efficient system to obtain a pile from a storage location on a vessel and shift the pile across the vessel without significant rotation of the pile. The pile can be transferred into an assembly that can lower the pile and launch the pile. The disclosure provides a method of translating and launching a pile for a marine application, comprising: storing at least a first pile on a rack located on a vessel; transporting the pile to an installation site; lifting the pile from the rack with a cart; supporting the pile on the cart; shifting the cart and the pile to a launch arm assembly; transferring the pile from the cart to a first portion of the launch arm assembly adjacent a side of the vessel; lowering the first portion with the pile; and releasing the pile from the first portion into a marine environment.
Abstract:
The invention relates to an installation comprising a combustion chamber (15) provided with means (53) which are used to introduce the mineral load and are connected to a pre-heater (27), combustion means (55) for maintaining the chamber (15) at a temperature of between 700° C. and 900° C., means (57) for introducing a treatment gas having a controlled carbon dioxide content in order to oppose the dissociation of the carbonate in the chamber (15), and means (61) for removing the calcinated mineral load guided into a cooler (31). The chamber (15) comprises means (51) for forming a fluidised bed. The means (57) for introducing treatment gases are supplied at least partially by a line (91) or deriving part of the combustion flue gases of the chamber (15) emitted by means for discharging (21) said flue gases into the atmosphere. The invention can be used for the production of a cement-type hydraulic binder.
Abstract:
An installation for manufacturing a wound rigid tubular pipe intended to be installed by a laying ship. An assembly unit for assembling a plurality of rigid tubes end to end to obtain lengths and for assembling the lengths to form the rigid tubular pipe which is intended to be wound onto a storage reel situated on the laying ship. An intermediate winding and deforming apparatus arranged on a first float distinct from the laying ship in order to plastically deform the rigid tubular pipe and wind it onto the intermediate winding apparatus after the rigid tubular pipe has been formed. A connector connecting together the first float and the assembly unit.
Abstract:
The present disclosure provides an improved system and method for increasing an anchoring force on a pile. The concepts regarding the pile can apply whether the pile is degraded and no longer able to support its intended load, or a load on the pile has increased to a level that may overstress the pile. A sleeve can be installed even in subsea conditions over the pile and can be used to provide an additional securing force to the existing pile. The sleeve may include its own padeye for coupling an anchor line or other coupling member to a structure to be secured. The sleeve may also include an assembly of rings coupled together with at least one longitudinal member. The assembly with the rings spaced a distance away from each other may help reduce an installation friction on the sleeve, as it is installed into the sea floor.
Abstract:
This method comprises the cooling of the initial natural gas and its introduction into a column for recovering C2+ hydrocarbons. It comprises the recovery of the top stream from the column to form the treated natural gas, and the recovery of the bottom stream from the column for introducing it at a feed level of a fractionating column equipped with a top condenser. The column produces the said C3+ hydrocarbons at the bottom. The method comprises the recovery of the ethane rich stream from an intermediate level of the column located above the said feed level and the production of a secondary reflux stream from the said top condenser refluxed to the top of the recovery column.
Abstract:
The invention concerns a method for making a section of a support strut member of an offshore oil-drilling rig comprising steps which consist in: a) machining each longitudinal edge of a semi-cylindrical stiffener (13) to provide along the longitudinal edge, a lip (18) for support on a main surface (12A) of a main plate (12), by producing along the longitudinal edge an outer bevel (20) on the side opposite the conduit (17) defined by the stiffener (13); b) applying a base plate (22) of the support lip (18) to weld it with main surface (12A) of the plate (12); heating the support lip (18) to weld it with the plate (12) and constitute a support weld joint; and d) forming a weld bead with filler metal from outside the conduit (17) in the space delimited between the support weld joint, the outer bevel (20) and the main surface (12A) of the main plate (12).