Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US409188111 Apr 197730 May 1978Exxon Production Research CompanyArtificial lift system for marine drilling riser
US409958311 Apr 197711 Jul 1978Exxon Production Research CompanyGas lift system for marine drilling riser
US41344611 Aug 197716 Jan 1979Shell Oil CompanyMarine structure and method of drilling a hole by means of said structure
US41496036 Sep 197717 Apr 1979Riserless mud return system
US422020731 Oct 19782 Sep 1980Standard Oil Company (Indiana)Seafloor diverter
US43764679 Jun 198015 Mar 1983Standard Oil Company (Indiana)Seafloor diverter
US48134955 May 198721 Mar 1989Conoco Inc.Method and apparatus for deepwater drilling
US52496351 May 19925 Oct 1993Marathon Oil CompanyMethod of aerating drilling fluid
US567620920 Nov 199514 Oct 1997Hydril CompanyDeep water riser assembly
US572764030 Oct 199517 Mar 1998Mercur Subsea Products ASDeep water slim hole drilling system
US610267325 Mar 199915 Aug 2000Hydril CompanySubsea mud pump with reduced pulsation
US61387742 Mar 199831 Oct 2000Weatherford Holding U.S., Inc.Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment
US614223618 Feb 19997 Nov 2000Method for drilling and completing a subsea well using small diameter riser
US621679924 Sep 199817 Apr 2001Shell Offshore Inc.Subsea pumping system and method for deepwater drilling
US623082425 Mar 199915 May 2001Hydril CompanyRotating subsea diverter
US62639822 Mar 199924 Jul 2001Weatherford Holding U.S., Inc.Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
US627645524 Sep 199821 Aug 2001Shell Offshore Inc.Subsea gas separation system and method for offshore drilling
US632515925 Mar 19994 Dec 2001Hydril CompanyOffshore drilling system
US632810727 Jul 200011 Dec 2001ExxonMobil Upstream Research CompanyMethod for installing a well casing into a subsea well being drilled with a dual density drilling system
US635211411 Dec 19985 Mar 2002Ocean Drilling Technology, L.L.C.Deep ocean riser positioning system and method of running casing
US641587714 Jul 19999 Jul 2002Deep Vision LLCSubsea wellbore drilling system for reducing bottom hole pressure
US64223246 Aug 199923 Jul 2002Wirth Maschinen-und Bohrgeratefabrik GmbHMethod and device for driving bore-holes, in the sea bed using a counterflush method
US64709751 Mar 200029 Oct 2002Weatherford/Lamb, Inc.Internal riser rotating control head
US65056916 Aug 200114 Jan 2003Hydril CompanySubsea mud pump and control system
US653654015 Feb 200125 Mar 2003Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
US657187320 Feb 20023 Jun 2003ExxonMobil Upstream Research CompanyMethod for controlling bottom-hole pressure during dual-gradient drilling
US66480818 Mar 200218 Nov 2003Deep Vision LLPSubsea wellbore drilling system for reducing bottom hole pressure
US666894331 May 200030 Dec 2003ExxonMobil Upstream Research CompanyMethod and apparatus for controlling pressure and detecting well control problems during drilling of an offshore well using a gas-lifted riser
US680237921 Feb 200212 Oct 2004ExxonMobil Upstream Research CompanyLiquid lift method for drilling risers
US68433316 Nov 200218 Jan 2005Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
US685453217 Nov 200315 Feb 2005Deep Vision LLCSubsea wellbore drilling system for reducing bottom hole pressure
US691309223 Jul 20015 Jul 2005Weatherford/Lamb, Inc.Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
US692610117 Mar 20039 Aug 2005System and method for treating drilling mud in oil and gas well drilling applications
US695769823 Jun 200325 Oct 2005Baker Hughes IncorporatedDownhole activatable annular seal assembly
US696639213 Jun 200322 Nov 2005Method for varying the density of drilling fluids in deep water oil and gas drilling applications
US69815612 Sep 20033 Jan 2006Baker Hughes IncorporatedDownhole cutting mill
US709003617 Jul 200315 Aug 2006System for drilling oil and gas wells by varying the density of drilling fluids to achieve near-balanced, underbalanced, or overbalanced drilling conditions
US709366229 Oct 200322 Aug 2006System for drilling oil and gas wells using a concentric drill string to deliver a dual density mud
US709697525 Mar 200429 Aug 2006Baker Hughes IncorporatedModular design for downhole ECD-management devices and related methods
US711458120 Feb 20043 Oct 2006Deep Vision LLCActive controlled bottomhole pressure system & method
US715966928 Oct 20029 Jan 2007Internal riser rotating control head
US71749759 Sep 200413 Feb 2007Baker hughes IncorporatedControl systems and methods for active controlled bottomhole pressure systems
US723762319 Sep 20033 Jul 2007Weatherford/Lamb, Inc.Method for pressurized mud cap and reverse circulation drilling from a floating drilling rig using a sealed marine riser
US725817121 Nov 200521 Aug 2007Weatherford/Lamb, Inc.Internal riser rotating control head
US72701859 Jul 200218 Sep 2007Baker Hughes IncorporatedDrilling system and method for controlling equivalent circulating density during drilling of wellbores
US73538878 Sep 20058 Apr 2008Baker Hughes IncorporatedControl systems and methods for active controlled bottomhole pressure systems
US744845423 Mar 200411 Nov 2008Weatherford/Lamb, Inc.Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
US748783723 Nov 200410 Feb 2009Weatherford/Lamb, Inc.Riser rotating control device
US751331012 Mar 20047 Apr 2009Ocean Riser Systems ASMethod and arrangement for performing drilling operations
US773556125 Feb 200815 Jun 2010Chevron U.S.A. Inc.Subsea adapter for connecting a riser to a subsea tree
US776235722 Aug 200827 Jul 2010Dual Gradient Systems, LLCDual gradient drilling method and apparatus with an adjustable centrifuge
US780620316 Jun 20065 Oct 2010Baker Hughes IncorporatedActive controlled bottomhole pressure system and method with continuous circulation system
US781920425 Jul 200526 Oct 2010Geoprober Drilling LimitedSubsea drilling
US78369462 Mar 200623 Nov 2010Weatherford/Lamb, Inc.Rotating control head radial seal protection and leak detection systems
US79137642 Aug 200729 Mar 2011AGR Subsea, Inc.Return line mounted pump for riserless mud return system
US792659331 Mar 200819 Apr 2011Weatherford/Lamb, Inc.Rotating control device docking station
US793454522 Oct 20103 May 2011Weatherford/Lamb, Inc.Rotating control head leak detection systems
US79504637 Apr 200931 May 2011Ocean Riser Systems ASMethod and arrangement for removing soils, particles or fluids from the seabed or from great sea depths
US797255516 Oct 20085 Jul 2011ExxonMobil Upstream Research CompanyMethod for fabricating compressible objects for a variable density drilling mud
US799263315 Aug 20099 Aug 2011Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US79926431 Jun 20049 Aug 2011Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US799265422 Aug 20089 Aug 2011Dual Gradient Systems, LLCDual gradient drilling method and apparatus with an adjustable centrifuge
US799265521 Nov 20059 Aug 2011Dual Gradient Systems, LLCDual gradient drilling method and apparatus with multiple concentric drill tubes and blowout preventers
US799734519 Oct 200716 Aug 2011Weatherford/Lamb, Inc.Universal marine diverter converter
US801145021 Jul 20066 Sep 2011Baker Hughes IncorporatedActive bottomhole pressure control with liner drilling and completion systems
US80333357 Nov 200711 Oct 2011Halliburton Energy Services, Inc.Offshore universal riser system
US806606313 Sep 200729 Nov 2011Cameron International CorporationCapillary injector
US806606715 Aug 200929 Nov 2011Cameron International CorporationApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US806607625 Feb 200529 Nov 2011Cameron Systems (Ireland) LimitedConnection system for subsea flow interface equipment
US807626916 Oct 200813 Dec 2011ExxonMobil Upstream Research CompanyCompressible objects combined with a drilling fluid to form a variable density drilling mud
US808871616 Oct 20083 Jan 2012ExxonMobil Upstream Research CompanyCompressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud
US808871716 Oct 20083 Jan 2012ExxonMobil Upstream Research CompanyCompressible objects having partial foam interiors combined with a drilling fluid to form a variable density drilling mud
US809163027 Apr 201010 Jan 2012Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US810454115 Nov 200731 Jan 2012Cameron International CorporationApparatus and method for processing fluids from a well
US811329125 Mar 201114 Feb 2012Weatherford/Lamb, Inc.Leak detection method for a rotating control head bearing assembly and its latch assembly using a comparator
US812294827 Apr 201028 Feb 2012Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US816704926 May 20111 May 2012Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well
US822053527 Apr 201017 Jul 2012Cameron Systems (Ireland) LimitedApparatus and method for recovering fluids from a well and/or injecting fluids into a well