| Patent Number |
Title Of Patent |
Date Issued |
| 5609440 |
Apparatus and method for arresting the propagation of a buckle in a pipeline |
March 11, 1997 |
| An underwater pipeline is disclosed that arrests the propagation of a collapse or buckle that may occur as the pipeline is being laid or after the pipeline is in service. The pipeline comprises a plurality of joints of pipe connected end-to-end by a threaded connection. Each connection |
| 4971148 |
Flow diverter |
November 20, 1990 |
| There are disclosed several embodiments of a flow diverter each of which includes a housing installed beneath the floor of a drilling rig on the upper end of a conductor pipe through which a well is to be drilled, a thrust plate sealably supported within a bore through the housing above |
| 4909327 |
Marine riser |
March 20, 1990 |
| There are disclosed several embodiments of a marine riser having means for disrupting smooth flow of seawater along its length of the riser and thus damping vertical oscillation of the riser when its lower end is released from a subsea wellhead. |
| 4832126 |
Diverter system and blowout preventer |
May 23, 1989 |
| A system is disclosed which may alternatively be used as a diverter or as a blowout preventer for a drilling rig. The system comprises a blowout preventer attached above a spool having a hydraulically driven sleeve/piston. An outlet flow passage in the spool, which may be connected t |
| 4828024 |
Diverter system and blowout preventer |
May 9, 1989 |
| A system is disclosed which may alternatively be used as a diverter or as a blowout preventer for a drilling rig. The system comprises a blowout preventer attached above a spool having a hydraulically driven sleeve/piston. An outlet flow passage in the spool, which may be connected t |
| 4719937 |
Marine riser anti-collapse valve |
January 19, 1988 |
| A marine riser anticollapse valve is disclosed for preventing a marine riser from collapsing under external sea water pressure in the event of a sudden loss of internal drilling fluid pressure. An external valve structure is provided for each of a plurality of openings in the wall of a |
| 4708513 |
Fatigue resistant coupling for tubular members |
November 24, 1987 |
| An extended lift coupling for joining tubular members in an end-to-end relationship is disclosed. The coupling is of simple design having only three components: a pin, a box and a threaded lock ring. An external compressive axial preload places a torus on the pin in axial compression. |
| 4646844 |
Diverter/bop system and method for a bottom supported offshore drilling rig |
March 3, 1987 |
| A system adapted for alternative use as a diverter or a blowout preventer for a bottom supported rig and adapted for positioning beneath a rotary table of the drilling rig is disclosed. The system comprises a fluid flow controller and at least two bases adapted for being alternatively |
| 4626135 |
Marine riser well control method and apparatus |
December 2, 1986 |
| This invention provides a method and apparatus for maintaining safe pressure in the annulus of a deepwater marine riser by preventing the displacement of drilling mud with formation gas. By providing an improved flow diverting control device having an annular sealing device in the ri |
| 4621655 |
Marine riser fill-up valve |
November 11, 1986 |
| A marine riser safety valve is disclosed which, when placed in series with a deep water marine riser string, prevents collapse of riser pipe when inadvertent gas influx replaces the drilling fluid column. A cylindrical body is provided having a depression formed therein with at least one |
| 4597447 |
Diverter/bop system and method for a bottom supported offshore drilling rig |
July 1, 1986 |
| A system and method for installing a fluid flow controller and telescoping spools beneath an offshore bottom supported drilling rig rotary table is disclosed. Upper and lower telescoping spools are provided for initially connecting a Diverter/BOP convertible fluid flow controller between |
| 4566494 |
Vent line system |
January 28, 1986 |
| A vent line system is disclosed which is adapted for connection to a flow diverter attached to a drilling rig. The system assures that the vent line is always open for discharge of pressurized drilling fluid away from the drilling rig in one of two directions. |
| 4546828 |
Diverter system and blowout preventer |
October 15, 1985 |
| A system is disclosed which may alternatively be used as a diverter or as a blowout preventer for a drilling rig. The system comprises a BOP attached above a spool having a hydraulically driven sleeve/piston. An outlet passage in the spool, which may be connected to a vent line, is close |
| 4524832 |
Diverter/BOP system and method for a bottom supported offshore drilling rig |
June 25, 1985 |
| A system and method for installing a fluid flow controller and telescoping spools beneath an offshore bottom supported drilling rig rotary table is disclosed. Upper and lower telescoping spools are provided for initially connecting a Diverter/BOP convertible fluid flow controller between |
| 4502534 |
Flow diverter |
March 5, 1985 |
| Apparatus adapted for connection to a drilling conduit beneath a drilling rig floor for diverting pressurized well bore fluid in the conduit from the rig and sealing the annulus between a pipe or other object and the conduit or closing the vertical flow path of the conduit in the absence |
| 4496173 |
Threaded coupling |
January 29, 1985 |
| A coupling for first and second pipe sections where end portions on the first and second pipe sections are shaped and dimensioned so that the end portion of the first pipe section can be inserted in the end portion of the second pipe section. Penetration of the first section is limited |
| 4487434 |
Union-type coupling for marine drilling riser pipe |
December 11, 1984 |
| A coupling for underwater upper and lower riser pipe sections and associated parallel choke and kill line pipe sections, where one riser pipe section is inserted in a second one. One of the riser pipe sections includes a threaded male end which has at least two sets of continuous thr |
| 4456063 |
Flow diverter |
June 26, 1984 |
| Apparatus adapted for connection to a drilling conduit beneath a drilling rig floor for diverting pressurized well bore fluid in the conduit from the rig and sealing the annulus between a pipe or other object and the conduit or closing the conduit in the absence of any object in the |
| 4456062 |
Flow diverter |
June 26, 1984 |
| Apparatus is disclosed which is adapted for connection to a drilling conduit beneath a drilling rig floor for diverting pressurized well bore fluid in the conduit from the rig and sealing the annulus between a pipe or other object and the conduit or closing the vertical flow path of the |
| 4444401 |
Flow diverter seal with respective oblong and circular openings |
April 24, 1984 |
| A seal member of elastomeric material which is shaped to fit sealably within a recess of a flow diverter body. On the inside of the diverter body, a seal is effected against a slidable cylindrical valve sleeve. On the outside of the diverter body, a seal is effected against a permanent |
| 4444250 |
Flow diverter |
April 24, 1984 |
| Flow diverter apparatus is disclosed having a housing and a piston and annular packer disposed therein. The diverter has passages in the piston and housing walls providing fluid communication between the borehole and a vent line. A valve in the vent line is opened before the packer of th |
| 4024718 |
Subsea cable apparatus and method of handling same |
May 24, 1977 |
| Subsea cable apparatus adapted to extend from a floating structure to a subsea wellhead apparatus or stack with a marine riser pipe extending from the floating structure to the subsea wellhead, such apparatus including a cable supported on the floating structure, by a multiple roller she |
