| Patent Number |
Title Of Patent |
Date Issued |
| RE31026 |
Navigation system for maneuvering a structure about a submerged object |
September 7, 1982 |
| The navigation system permits remote maneuvering of a water-borne structure about a stationary object by utilizing dual sonar ranging. The structure can be self-propelled or towed by a surface craft. The transducer portion of the navigation system is mounted on the structure and the syst |
| RE30846 |
Submarine pipeline laying vessel |
January 12, 1982 |
| This invention relates to a method and to an apparatus for use in laying a submarine pipeline from a pipe-laying vessel. According to one aspect of the present invention, there is provided a reel pipe-laying method for continuously laying a pipeline of up to 24-inch diameter without a st |
| RE29591 |
Column stabilized stinger transition segment and pipeline supporting apparatus |
March 28, 1978 |
| The stinger segment includes a base structure having a plurality of upstanding stabilizing columns on opposite sides of its pitch and roll axes and carrying pipeline supports which permit translational movement of the pipeline relative to the stinger segment. The stinger segment is p |
| RE29478 |
Single column semisubmersible drilling vessel |
November 22, 1977 |
| The vessel comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced along outboard portions of the hulls. In the preferred form, a central column supports a working platform in spaced relation above the hulls. The hulls buoyantly support the ve |
| RE29167 |
Twin hull variable draft drilling vessel |
April 5, 1977 |
| The vessel comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform in spaced relation above the hulls a distance slightly greater than the maximum anticipated wave height. The hulls buoyantly support th |
| RE28922 |
Column stabilized stinger |
August 3, 1976 |
| The stinger includes a base structure having a plurality of upstanding stabilizing columns on opposite sides of its pitch and roll axes and carrying pipeline supports which permit translational movement of the pipeline relative to the stinger. The stinger is pivotably secured behind |
| 4961671 |
Method of converting a pipeline laying vessel from a pivotal ramp type to an arcuate type |
October 9, 1990 |
| A method of spooling a plurality of operational lines onto a vessel having a plurality of reels for storage of the operational lines, one of which lines is a rigid walled pipeline, the vessel having a level wind apparatus, a pipeline support drum, and a motor unit for each of the sto |
| 4917540 |
Pipeline laying system and vessel with pipeline straightening and tensioning device |
April 17, 1990 |
| A pipelaying system adapted for deployment on a vessel for use in a body of water and having at least one reel for storage and layout of a rigid walled pipeline and including pipe take-off drum for mounting on the vessel for rotation about a horizontal drum axis, a pipe take-off stru |
| 4820082 |
Pipeline laying system and vessel |
April 11, 1989 |
| A pipelaying system is adapted for deployment on a vessel for use in a body of water. The system has at least one reel for storage and layout of a rigid walled pipeline, a pipeline support comprising a pipe takeoff drum for mounting on the vessel for rotation about a horizontal drum axis |
| 4808036 |
Mobile marine operations structure |
February 28, 1989 |
| A marine operations structure for use in arctic seas having steel/concrete composite ice walls positioned to permit multi-year ice ridges to be broken up with lower vertical forces imposed on the structure than heretofore possible. The structure provides for simultaneous contacting a |
| 4789108 |
Multi-reel operational lines laying vessel |
December 6, 1988 |
| A reel pipelaying vessel having multiple reels for laying operational lines in a wide range of water depths. An operational lines laying device is mounted on the vessel in order to provide supporting means for the simultaneous layout of a plurality of operational lines at a common ve |
| 4725166 |
Mobile marine operations structure |
February 16, 1988 |
| A marine operations structure for use in arctic seas having steel/concrete composite ice walls positioned to permit multi-year ice ridges to be broken up with lower vertical forces imposed on the structure than heretofore possible. The structure provides for simultaneous contacting a |
| 4723874 |
Multi-reel operational lines laying vessel |
February 9, 1988 |
| A reel pipelaying vessel having multiple reels for laying operational lines in a wide range of water depths. An operational lines laying device is mounted on the vessel in order to provide supporting means for the simultaneous layout of a plurality of operational lines at a common ve |
| 4721411 |
Multi-reel operational lines laying vessel |
January 26, 1988 |
| A reel pipelaying vessel having multiple reels for laying operational lines in a wide range of water depths. An operational lines laying device is mounted on the vessel in order to provide supporting means for the simultaneous layout of a plurality of operational lines at a common ve |
| 4721410 |
Reel pipe coating and laying vessel and process |
January 26, 1988 |
| A pipeline vessel for laying out and coating a pipeline from a storage reel onto the bottom of a body of water. The vessel equipment provides for both straightening and tensioning of the pipeline as well as coating with a wide range of concrete and/or polymer coats. Both extrusion type |
| 4702646 |
Pipe initiation anchor |
October 27, 1987 |
| A pipe initiation anchor forming a fixed anchor point for use in laying underwater pipelines comprises a ground engaging member in the form of a ballast box or a ground pile, a socket for receiving an end portion of a pipeline, and a locking member for retaining the end portion of the |
| 4695194 |
Mobile marine operations structure |
September 22, 1987 |
| A marine operations structure for use in arctic seas having steel/concrete composite ice walls positioned to permit multi-year ice ridges to be broken up with lower vertical forces imposed on the structure than heretofore possible. The structure provides for simultaneous contacting a |
| 4687376 |
Multi-reel operational lines laying vessel |
August 18, 1987 |
| A reel pipelaying vessel having multiple reels for laying operational lines in a wide range of water depths. An operational lines laying device is mounted on the vessel in order to provide supporting means for the simultaneous layout of a plurality of operational lines at a common ve |
| 4666341 |
Mobile sea barge and plateform |
May 19, 1987 |
| A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central support member for controlled |
| 4627767 |
Mobile sea barge and platform |
December 9, 1986 |
| A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central support member for controlled |
| 4516633 |
Blind shaft drilling |
May 14, 1985 |
| In the mining of various minerals from the earth, large mining shafts extending from the surface down to the deposited mineral layers or seams in the earth can be provided through the use of large diameter bore hole drilling equipment. With the drilling equipment stationed on the surface |
| 4460293 |
Mine shaft liner |
July 17, 1984 |
| In the mining of minerals from the earth, it is necessary to drill deep bore holes typically between 3000 and 6000 feet in the earth. In order to protect those entering the hole for additional mining operations, after drilling the hole, the hole is lined with a stack of specially constru |
| 4445524 |
Autonomous cleaning inspection device |
May 1, 1984 |
| A device for removing encrusted marine growth from submerged structures and for Non-Destructive testing of welds and the like is disclosed. The device includes a flexible transparent sleeve or housing for encapsulating an area of the structure to be cleaned and a reservoir for admitting |
| 4423981 |
Concrete lining of drilled shaft |
January 3, 1984 |
| In conjunction with the mining of minerals from the earth, it is necessary to construct deep verticle shafts normally between 10 and 20 feet in diameter and typically between 3000 and 6000 feet in depth in the earth. Technology has been developed for blind drilling of such shafts. After |
| 4361104 |
Twin hull semisubmersible derrick barge |
November 30, 1982 |
| The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly support the vessel including its deck |
| 4345855 |
Self propelled dynamically positioned reel pipe laying ship |
August 24, 1982 |
| A self propelled reel pipe laying ship having forward, midship and stern sections, and having a reel mounted at the midship section thereof about a substantially horizontal axis of rotation extending transversely of the ship, such that the load of the reel is distributed downwardly and |
| 4340322 |
Self propelled dynamically positioned reel pipe laying ship |
July 20, 1982 |
| A self propelled reel pipelaying ship, having forward, midship, and stern sections, and baseline, tank top, and main deck levels, comprising substantially longitudinal outer hull members and port and starboard side inner longitudinal bulkheads, each extending substantially the length of |
| 4330225 |
System for entrenching submerged elongated structures |
May 18, 1982 |
| A system for excavating a trench in the sea bottom and removing the excavated spoil from the trench in order to enable an elongated structure, such as a pipeline, to settle into the trench is disclosed along with a corresponding method of operating such system. The system includes a sea |
| 4330155 |
Bore hole mining |
May 18, 1982 |
| Minerals, in particular coal, that have been deposited in layers or along seams in the earth can be mined utilizing a large diameter bore hole drilling equipment. With the drilling equipment stationed on the surface of the earth, a drilling member is drilled down into the earth along the |
| 4297054 |
Method of laying offshore pipeline from a reel carrying vessel |
October 27, 1981 |
| Disclosed are methods and techniques related to the control of pipelaying operations from a self-propelled reel pipelaying vessel. The methods are concerned with (1) controlling pipeline geometry as a function of pipe entry angle into the water and tension on the pipeline; (2) monitoring |
| 4273469 |
System and method for laying subsea pipelines |
June 16, 1981 |
| A system for laying subsea pipelines. The pipeline to be laid is wound on a reel which is rotatably mounted on a support structure. Both the support structure and the reel with the wound pipeline are submergible to a seabed. Both members are intended to be expendable in that once they ar |
| 4273067 |
Method of operating twin hull semisubmersible derrick barge |
June 16, 1981 |
| The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly support the vessel including its deck |
| 4269540 |
Self propelled dynamically positioned reel pipe laying ship |
May 26, 1981 |
| A self propelled reel pipe laying ship having forward, midship and stern sections, and having a reel mounted at the midship and thereof about a substantially horizontal axis of rotation extending transversely of the ship, such that the load of the reel is distributed downwardly and o |
| 4260287 |
Portable reel pipelaying method |
April 7, 1981 |
| A method for laying a substantially continuous length of pipe on the sea bottom from a carrier vessel, in which a pipe carrying reel is rotatably mounted on the carrier vessel, pipe straightening means are mounted to the carrier vessel downstream of the reel in the direction of unspoolin |
| 4243345 |
Pipe handling apparatus for reel pipe laying system |
January 6, 1981 |
| An offshore system for laying a continuous length of pipe on the sea bottom from a pipe-carrying reel adapted to be mounted on a carrier vessel having an improved pipe handling and conditioning apparatus for working on the unspooled pipe. The improved apparatus includes a pipe straighten |
| 4230421 |
Self propelled dynamically positioned reel pipe laying ship |
October 28, 1980 |
| A self propelled reel pipelaying ship, having forward, midship, and stern sections, and baseline, tank top, and main deck levels, comprising substantially longitudinal outer hull members and port and starboard side inner longitudinal bulkheads, each extending substantially the length of |
| 4216896 |
Automatic pipe welding apparatus and method |
August 12, 1980 |
| An expandable band is employed to provide a mold on the interior of the joint into which the weld puddle is flowed which may be made of any appropriate material, but preferably is copper. The back-up band is carried on a set of rounding jacks which engage the facing pipe ends and exe |
| 4212450 |
Jacking apparatus |
July 15, 1980 |
| The jacking apparatus comprises a load frame adapted to move relative to a rail having single slots longitudinally spaced therealong. A pawl carriage is disposed inside the frame for movement relative thereto. A single, double-acting hydraulic actuator is coupled between the frame and th |
| 4202427 |
Derrick escape system |
May 13, 1980 |
| An escape system for delivering personnel on a drilling rig to a safe location in the event of a blow out or other dangerous situation. More specifically, a personnel capsule is releasably maintained in an unbalanced disposition by an A-frame structure adjacent the racking board leve |
| 4179059 |
Automatic pipe welding apparatus and method |
December 18, 1979 |
| A TIG pipe welding method which employs two sets of machine guide surfaces on the pipe ends. First radially inner guide surfaces cooperate with a sensor coupled to the welding torch to continuously monitor the arc gap between the welding electrode and the weld puddle as the welding elect |
| 4166426 |
Method of construction of twin hull variable draft vessel |
September 4, 1979 |
| The vessel comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform in spaced relation above the hulls a distance slightly greater than the maximum anticipated wave height. The hulls buoyantly support th |
| 4165702 |
Method of constructing a twin hulled, column stabilized, semi-submersible derrick barge |
August 28, 1979 |
| The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly support the vessel including its deck |
| 4165571 |
Sea sled with jet pump for underwater trenching and slurry removal |
August 28, 1979 |
| The sea sled includes a pair of pontoons mounting depending rollers for straddling a pipeline disposed on the sea bottom. Water jets fluidize the sea bottom to form a trench in which the pipeline settles. The slurry formed by the water jets is removed from the trench by the eductor syste |
| 4150635 |
Twin hull semi-submersible derrick barge |
April 24, 1979 |
| The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls buoyantly support the vessel including its deck |
| 4106335 |
Sea sled tow line vector system |
August 15, 1978 |
| The tow line system permits a determination of the direction and magnitude of tow line forces on the underwater tow. The response of the underwater tow to the tow line forces is also monitored. The system is adaptable to any system capable of measuring forces and angles remotely and |
| 4091760 |
Method of operating twin hull variable draft vessel |
May 30, 1978 |
| The vessel comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform in spaced relation above the hulls a distance slightly greater than the maximum anticipated wave height. The hulls buoyantly support th |
| 4064968 |
Scaffold for working on a pipeline movable relative to a base |
December 27, 1977 |
| The invention involves working on a pipeline which is subject to movements relative to a base such as ground, the deck of a floating barge, and the like. A rollable scaffold is frictionally coupled to the pipeline so that workers carried by the scaffold can move relative to the base and, |
| 3987640 |
Column stabilized semisubmersible pipelaying barge |
October 26, 1976 |
| The pipelaying barge comprises a pair of laterally spaced, elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform in spaced relation above the hulls and on which platform is carried a pipe section assembly line and one or more cranes mova |
| 3982402 |
Submarine pipeline laying vessel |
September 28, 1976 |
| This invention relates to a method and to an apparatus for use in laying a submarine pipeline from a pipe-laying vessel. According to one aspect of the present invention, there is provided a reel pipe-laying method for continuously laying a pipeline of up to 24-inch diameter without a st |
| 3967572 |
Anchoring system and chain stopper therefor |
July 6, 1976 |
| Disclosed is a chain stopper including a pair of side-by-side support plates pivotally connected to hanger plates which support the chain stopper from the vessel's structure. The support plates releasably engage about the anchor chain to support the anchor from the vessel's structure. |
