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Bore glazing and polishing in diesel engines – Cox Engineering

Bore glazing and polishing in diesel engines. A technical explanation. ... When the bore surface becomes polished all peaks and most troughs become worn away, also preventing correct ring lubrication: Oils: The use of incorrect oils in lightly loaded engines can lead to problems with bore glazing. The designations API CC and CD have been ...

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US20120273213A1 - Marine subsea riser systems and methods ...

A riser system connects a subsea source of hydrocarbons to a collection vessel. The system includes a riser, a lower end of the riser fluidly coupled to a seal stem, the seal stem in turn fluidly attached to a lower riser assembly through a polished bore receptacle. The upper end of the riser is connected to the collection vessel, the riser being maintained in a near vertical position.

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Method and apparatus for top to bottom expansion of tubulars

An apparatus and method are disclosed that allow for downhole expansion of long strings of rounded tubulars, using a technique that expands the tubular from the top to the bottom. The apparatus supports the tubular to be expanded by a set of protruding dogs which can be retracted if an emergency release is required. A conically shaped wedge is driven into the top of the tubing to be expanded.

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US Patent for Method for creating a polished bore ...

Justia Patents With Sealing Feature (e.g., Packer) US Patent for Method for creating a polished bore receptacle Patent (Patent # 6,585,053) Method for creating a polished bore receptacle . Sep 7, 2001 - Weatherford/Lamb, Inc. A method for creating a seal between two tubulars in a wellbore is provided. In one aspect, the method allows for the ...

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US6585053B2 - Method for creating a polished bore ...

The method for creating a polished bore receptacle at the upper end of a string of casing of claim 7, wherein the lower end of the string of production tubing has a sealing element around an outer surface for facilitating the fluid seal between the expanded inner surface of the upper end of the string of casing, and the lower end of the string ...

Energy IP Representative Patents - Energy IP

Method for Creating a Polished Bore Receptacle (U.S. Patent No. 6,585,053) Insulated Casing and Tubing Hangers (U.S. Patent No. 6,763,882) Core Annular Flow of Heavy Crude Oils in Transportation Pipelines and Production Wellbores (U.S. Patent No. 8,298,997)

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MARINE SUBSEA RISER SYSTEMS AND METHODS - BP .

A riser system connects a subsea source of hydrocarbons to a collection vessel. The system includes a riser, a lower end of the riser fluidly coupled to a seal stem, the seal stem in turn fluidly attached to a lower riser assembly through a polished bore receptacle. The upper end of the riser is connected to the collection vessel, the riser being maintained in a near vertical position.

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Method for creating a polished bore receptacle ...

Jul 01, 2003 · The inner surface of the polished bore receptacle 10 further has a smooth surface sufficient for sealingly mating with the lower end of a string of production tubing, shown as 125 in FIG. 5. FIG. 5 is a section view showing a string of production tubing 125 being mated into the polished bore receptacle .

  • Authors: Robert Joe CoonAffiliation: Weatherford InternationalGet Price

polished bore receptacle mill - labasadifunction

Method for creating a polished bore receptacle - Patent # 6585053 - ... of casing which is expanded to create a polished bore receptacle for receiving a string of ... ent, the first tubular defines a string of casing which is expanded to create a polished bore ... Chat Online

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polished bore receptacle mill - labasadifunction

Method for creating a polished bore receptacle - Patent # 6585053 - ... of casing which is expanded to create a polished bore receptacle for receiving a string of ... ent, the first tubular defines a string of casing which is expanded to create a polished bore ... Chat Online

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Drilling with casing and retrievable drill bit - patentcut

Drilling with casing and retrievable drill bit US5271472; wellbores are formed in the earth with elongated, tubular drillstems which include retrievable bit assemblies.The retrievable bit assembly includes a body having locking dogs engageable with cooperating recesses formed in a sub at the bottom of the drillstem.The bit assembly includes radially extendable and retractable arms with cutters ...

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Representative Patents - Oil Field Patents

REPRESENTATIVE PATENTS. Method for Creating a Polished Bore Receptacle (U.S. Patent 6,585,053) Apparatus for Releasing a Ball into a Wellbore (U.S. Patent 7,143,831) Expandable Sand Screen for use in a Wellbore (U.S. Patent 6,969,905) Expandable Sand Screen and Method for Installing Same in a Wellbore (U.S. Patent 6,571,871)

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Patent application title: MARINE SUBSEA RISER SYSTEMS AND ...

The riser system according to claim 1, the lower end of the lower riser assembly connected to a subsea mooring, and further comprising one or more structural supports for the polished bore receptacle extending from the subsea mooring to a point about midway up the polished bore receptacle. 11.

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Casing patch overshot - Baker Hughes Incorporated

Jul 21, 2009 · In U.S. Pat. No. 6,585,053 a tubular string is inserted in a lager string and the top of the inner string is expanded pushing an exterior seal into the surrounding tubular. The tubular that was just inserted and expanded also presents a polished bore receptacle to receive yet another tubular string from the surface.

  • Authors: Gerald E LyndeAffiliation: Baker HughesGet Price

US6585053B2 - Method for creating a polished bore ...

The method for creating a polished bore receptacle at the upper end of a string of casing of claim 7, wherein the lower end of the string of production tubing has a sealing element around an outer surface for facilitating the fluid seal between the expanded inner surface of the upper end of the string of casing, and the lower end of the string ...

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Representative Patents - Oil Field Patents

REPRESENTATIVE PATENTS. Method for Creating a Polished Bore Receptacle (U.S. Patent 6,585,053) Apparatus for Releasing a Ball into a Wellbore (U.S. Patent 7,143,831) Expandable Sand Screen for use in a Wellbore (U.S. Patent 6,969,905) Expandable Sand Screen and Method for Installing Same in a Wellbore (U.S. Patent 6,571,871)

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polished bore receptacle - numberonecafe

polished bore receptacles price - zelba The use of Polished-bore Receptacles in Deepmore thandeep wells have been completed with these long polished-bore receptacles installed as the primary . PBR - Polished Bore Receptacles, AcronymAttic. PBR stands for Polished Bore Receptacles. PBR is defined as Polished Bore Receptacles rarely.

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Drilling with casing and retrievable drill bit - patentcut

Drilling with casing and retrievable drill bit US5271472; wellbores are formed in the earth with elongated, tubular drillstems which include retrievable bit assemblies.The retrievable bit assembly includes a body having locking dogs engageable with cooperating recesses formed in a sub at the bottom of the drillstem.The bit assembly includes radially extendable and retractable arms with cutters ...

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Coon, Robert J. - plainsite

Coon, Robert J.'s PlainSite profile, including litigation, intellectual property, public records and more.

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Coon, Robert J. - plainsite

Coon, Robert J.'s PlainSite profile, including litigation, intellectual property, public records and more.

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Bore polishing — identification and simulation - ScienceDirect

Bore polishing - identification of characteristics Bore polish develops after a long period of service and leads to blow-by, increased oil consumption and difficulties in lubrication which then cause scuffing. Bore polish is evi- denced by clearly defined areas of bright, highly reflective surfaces.