EP2785949A4 - Drill bit with seal having spheres in a matrix seal material - Google Patents

Drill bit with seal having spheres in a matrix seal material

Info

Publication number
EP2785949A4
EP2785949A4 EP11876488.5A EP11876488A EP2785949A4 EP 2785949 A4 EP2785949 A4 EP 2785949A4 EP 11876488 A EP11876488 A EP 11876488A EP 2785949 A4 EP2785949 A4 EP 2785949A4
Authority
EP
European Patent Office
Prior art keywords
seal
spheres
drill bit
matrix
seal material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11876488.5A
Other languages
German (de)
French (fr)
Other versions
EP2785949A1 (en
Inventor
David P Duckworth
Ping C Sui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Publication of EP2785949A1 publication Critical patent/EP2785949A1/en
Publication of EP2785949A4 publication Critical patent/EP2785949A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
EP11876488.5A 2011-11-30 2011-11-30 Drill bit with seal having spheres in a matrix seal material Withdrawn EP2785949A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2011/062654 WO2013081606A1 (en) 2011-11-30 2011-11-30 Drill bit with seal having spheres in a matrix seal material

Publications (2)

Publication Number Publication Date
EP2785949A1 EP2785949A1 (en) 2014-10-08
EP2785949A4 true EP2785949A4 (en) 2015-11-04

Family

ID=48535901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11876488.5A Withdrawn EP2785949A4 (en) 2011-11-30 2011-11-30 Drill bit with seal having spheres in a matrix seal material

Country Status (4)

Country Link
EP (1) EP2785949A4 (en)
AU (1) AU2011382519A1 (en)
CA (1) CA2856537A1 (en)
WO (1) WO2013081606A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702111A (en) * 1995-01-05 1997-12-30 Smith; Henry Roy Sealing apparatus
US20080121436A1 (en) * 2003-11-20 2008-05-29 Halliburton Energy Services, Inc. Downhole seal element formed from a nanocomposite material
US20090038858A1 (en) * 2007-08-06 2009-02-12 Smith International, Inc. Use of nanosized particulates and fibers in elastomer seals for improved performance metrics for roller cone bits
US20100018778A1 (en) * 2008-07-23 2010-01-28 Smith International, Inc. Seal comprising elastomeric composition with nanoparticles
CN201714301U (en) * 2010-07-09 2011-01-19 天津立林钻头有限公司 Compound seal roller bit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580794A (en) * 1984-11-16 1986-04-08 Jamak, Inc. Silicon rubber gasket and material
GB9513252D0 (en) * 1995-06-29 1995-09-06 Rolls Royce Plc An abradable composition
DE19955764A1 (en) * 1999-11-19 2001-05-31 Hilti Ag Gap sealing method and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702111A (en) * 1995-01-05 1997-12-30 Smith; Henry Roy Sealing apparatus
US20080121436A1 (en) * 2003-11-20 2008-05-29 Halliburton Energy Services, Inc. Downhole seal element formed from a nanocomposite material
US20090038858A1 (en) * 2007-08-06 2009-02-12 Smith International, Inc. Use of nanosized particulates and fibers in elastomer seals for improved performance metrics for roller cone bits
US20100018778A1 (en) * 2008-07-23 2010-01-28 Smith International, Inc. Seal comprising elastomeric composition with nanoparticles
CN201714301U (en) * 2010-07-09 2011-01-19 天津立林钻头有限公司 Compound seal roller bit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013081606A1 *

Also Published As

Publication number Publication date
EP2785949A1 (en) 2014-10-08
WO2013081606A1 (en) 2013-06-06
CA2856537A1 (en) 2013-06-06
AU2011382519A1 (en) 2014-07-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20140408

AK Designated contracting states

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Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20151006

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 12/00 20060101ALI20150930BHEP

Ipc: E21B 10/573 20060101AFI20150930BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160503