214results about "Cable-laying vessels" patented technology

A cable deployment system and method for laying a cable on the sea floor. The cable deployment system includes a cable having a first cable section connected to a riser cable section. The riser cable section includes an armor that is connected to a drum capable of containing a required length of the first cable section. A stinger is attached to the drum and shaped to allow the first cable section to exit the drum. The cable deployment system also includes a tensioning device attached to the drum. The tensioning device is capable of maintaining a tension in the first cable section during deployment of the first cable section from the drum. The method of deploying the cable in deep water from a surface vessel includes the steps of containing the first cable section within the drum and lowering the drum from the surface vessel. An end of the first cable section is secured to the sea floor and the first cable section is deployed from the drum onto the sea floor.

A method and apparatus for near vertical laying of a pipeline offshore by a pipe laying vessel includes a tower to which is attached a strongback that load pipe sections from a supply point on the vessel into the tower where the lower end of the pipe section is welded onto the upper end of a pipe line that extends into the sea while the strongback returns to the supply point for a second pipe joint. Where the pipe section includes a bulky item such as a valve assembly box, after the pipe section has been welded to the pipeline the pipe section is moved generally horizontally out of the tower and a hoisting cable lowers the pipe section to a predetermined depth below the tower. The hoisting cable then returns the pipe section and attached pipeline to their original position.

A pipe conduit bundle for installation into a wellbore using horizontal drilling techniques is disclosed. The pipe conduit does not require an outer casing for construction. The pipe bundle configuration is formed by pipes of varying sizes in a particular configuration, with bindings interspaced along the length of the pipes such that the pipe bundle deflects as a single unit during installation. A pulling head is attached to the bundle, which is hollow to allow liquid entering one pipe to be distributed to other pipes. Liquids such as water may be used to fill the pipes to reduce buoyancy, and thereby reduce drag, during installation of the bundle.

A method and apparatus for storing, deploying and retrieving a plurality of seismic devices is described. The apparatus includes a ramp device coupled to a portion of a trailing end of a vessel, a cable handling device positioned between the ramp device and a leading end of the vessel to define a cable path across the ramp device, and at least one conveyor system having a first end located adjacent the ramp device and a second end extending toward the leading end of the vessel. A deployment method includes providing nodes from a storage area to a workstation where the nodes may be attached to a cable. A retrieval method includes routing a cable through a workstation to detach nodes from the cable section and transfer the detached nodes to the storage area.

A micro-trench filling system and method of filling a trench holding a conduit is provided. The micro-trench filling system includes a trench formed into a covering surface, a conduit disposed in the bottom of the trench, a structural filler disposed on the conduit in the bottom of the trench, the structural filler made of a mesh material and having a plurality of openings; and a flowable filler poured into the trench and over the structural filler and surrounding the conduit. The flowable filler flows through the plurality of openings of the structural filler creating a bond between the flowable filler and structural filler, the flowable filler cures after a predetermined amount of time, and the structural filler and the flowable filler hold the conduit in place.

A floor drain (100) comprising a bottom part (4) having at least one discharge opening (5), a front part being integral with the bottom part (4) and having a first part (3b) being inclined to said bottom part at an angle being at least 30°, such as at least 45°, preferably at least 60° more preferably at least 75° and even more preferably about 90° or at least 90° and having a flange part (3a) being horizontal or inclined to horizontal at an angle being less than 20° such as less than 17°, preferably less than 15°, such as less than 10°, more preferably less than 5°, tow side walls (2) integral with said bottom part and said first part, and a back part (1) being integral with said bottom part (4), said back part (1) extending vertically from the bottom part (4), through and above the plane defined by the flange part (3a).

Devices and methods are provided for deploying optical fiber-optic cables or other cables. A general planar device is formed with a conduit disposed along the device. One or more fiber-optic cables or other types of communication cables are inserted through the conduit. The device with the embedded cables is pressed into the ground and can be used to provide high-bandwidth communications to a user's home from a service provider.

A pipelayer having an undercarriage with at least two tracks and a main assembly. Each track has a track frame coupled to the undercarriage and a track shoe supported by and movable around the track frame. The main assembly is supported by and rotatable relative to the undercarriage, and has a main frame, a boom pivotally mounted to the main frame, an operator cab, and a cab riser connecting the operator cab to the main frame. The cab riser is operable to selectively raise and lower the operator cab relative to the main frame. Also provided is a movable cab assembly having an operator cab, an adjustment mechanism to connect the cab to a vehicle frame and move to change the operator's view, and a guide to align the cab. A method for laying pipe using a pipelayer having a movable cab is also provided.

A subsea insulation device is described. The device includes a frame coupled to and at least partially enclosing a subsea component. A bag may be at least partially enclosed in the frame. The bag may substantially seal against at least one surface of the subsea component when the bag is at least partially inflated. A port may be attached to the bag. The port may allow the bag to be coupled to a fluid provider connector so that fluid can be provided into the bag to inflate the bag.

A method and apparatus for deploying a plurality of seismic sensor units into a water column is described. The method includes providing a length of flexible cable from a cable storage device disposed on a vessel to a powered sheave, the cable having a plurality of spaced apart attachment points, routing the cable from the powered sheave to pass adjacent a workstation disposed on the vessel, deploying a free end of the cable into the water column while increasing the motion of the vessel to a first speed, operating the vessel at the first speed while providing a deployment rate of the cable at a second speed, the second speed being greater than the first speed, decreasing the second speed of the cable as an attachment point approaches the work station, and attaching at least one of the plurality of seismic sensor units to the attachment point at the workstation.

A lightweight and compact super-insulation system that is also capable of supporting a high level of compressive load is described. The system utilizes spacers to provide structural support and utilize controlled buckling of a thin protective outer skin supported by spacers to form strong catenary surfaces to protect insulation material underneath. The spacers may comprise an aerogel, or an aerogel may provide insulation separate from the spacer yet contained within the thin outer skin. The system will be useful for thermal management of variety of deep underwater structures such as pipe-in-pipe apparatus, risers or subsea trees for ultra-deep water oil-and-gas exploration.

Novel and advantageous pipelay reel systems and methods for use in laying flexible or rigid pipe or tubing in on and offshore operations. The pipelay reel system may have a pipelay reel having a drum arranged between two flanges. At least one flange of the reel may have a chute configured to receive an adapter coupled to a starting end of the pipe to be spooled on the reel. An initiation line coupled to a winch and intersecting the flange chute may be used to position the adapter with respect to a receiving end of the flange chute, and the reel may be rotated to pull the adapter down the chute to a latching end of the chute. Moreover, a latch may be used to secure the adapter in the chute such that the pipe may be spooled onto the reel.

The invention discloses a submarine cable underwater synchronous paying-off underwater vehicle which is characterized by comprising a shipborne mechanical system, a synchronous pushing system, a pneumatic launching system, a calculation center control system and a dragging and underwater-moving system. The technologies of electric automatization, aerodynamics, mechatronics and single chip microcomputer control and the like are integrated, underwater operation can be achieved, and the underwater vehicle is less affected by stormy waves; automatic detection and real-time paying-off can be achieved, the positioning precision is 0.5-3 m, the course accuracy is 0.01 degree, and a cable line corridor can be accurately controlled; cable laying is high in speed and can be controlled in real time, and the highest cable laying speed can reach 50 KM/h; the automation degree is high, and the number of construction staff is greatly decreased; the integration degree is high, and the whole process can be monitored; construction obstacles for the cable line corridor do not need to be cleared away, so that the environment is protected; all the systems can be recycled, and secondary investment is low; the systems operate synchronously, and the tension force of submarine cable laying is reduced; the line first-aid repair capability is high, and the submarine cable underwater synchronous paying-off underwater vehicle is suitable for line reconstruction work after seaquakes; and the structure is reasonable, and the performance is reliable.

A deep-sea cable laying system of a maned submersible comprises a manned submersible. A hydraulic source and a valve box are mounted in the tail of the submersible, a cable laying winch is mounted in an operation cabin of the submersible and comprises a box body, a reel motor driving a reel to rotate and a conveying motor driving a conveying wheel to rotate are mounted in the box body, a length and speed measuring approach switch is mounted on the reel, a shearing oil cylinder with a shear knife is assembled at one end of the box body, a winch valve box is mounted at the other end of the box body, a cutoff indication approach switch is mounted on the outer wall of the box body corresponding to the shearing oil cylinder, and cables are conveyed to the sea bottom by sequentially winding the reel and the conveying wheel. A wiring box is mounted in the operation cabin of the submersible arranged at the outer end of the box body, an observation window is mounted at the end of a manned cabin, a top camera is arranged mounted at the top of the manned cabin, and a monitor, a winch control box and a manual hydraulic pump are mounted in the manned cabin; a bottom camera is mounted at the bottom end of the outer side of the tail of the manned submersible. Safety of sea bottom information network is guaranteed.