CA952818A - Means to prevent inward leakage across seals in a well tool - Google Patents

Means to prevent inward leakage across seals in a well tool

Info

Publication number
CA952818A
CA952818A CA130,532A CA130532A CA952818A CA 952818 A CA952818 A CA 952818A CA 130532 A CA130532 A CA 130532A CA 952818 A CA952818 A CA 952818A
Authority
CA
Canada
Prior art keywords
seals
well tool
prevent inward
inward leakage
leakage
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.)
Expired
Application number
CA130,532A
Other versions
CA130532S (en
Inventor
Vasel R. Slover (Jr.)
Daniel E. Hawk
Jack C. Brady
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.)
Mobil Oil AS
Original Assignee
Mobil Oil AS
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 Mobil Oil AS filed Critical Mobil Oil AS
Application granted granted Critical
Publication of CA952818A publication Critical patent/CA952818A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/003—Bearing, sealing, lubricating details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/20—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/22—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by negative mud pulses using a pressure relieve valve between drill pipe and annulus
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/24—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by positive mud pulses using a flow restricting valve within the drill pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
CA130,532A 1971-05-20 1971-12-20 Means to prevent inward leakage across seals in a well tool Expired CA952818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14537371A 1971-05-20 1971-05-20

Publications (1)

Publication Number Publication Date
CA952818A true CA952818A (en) 1974-08-13

Family

ID=22512810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA130,532A Expired CA952818A (en) 1971-05-20 1971-12-20 Means to prevent inward leakage across seals in a well tool

Country Status (5)

Country Link
US (1) US3741321A (en)
CA (1) CA952818A (en)
DE (1) DE2224699A1 (en)
FR (1) FR2138842B1 (en)
GB (1) GB1374678A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840080A (en) * 1973-03-26 1974-10-08 Baker Oil Tools Inc Fluid actuated down-hole drilling apparatus
USRE30257E (en) * 1975-01-31 1980-04-22 Engineering Enterprises, Inc. Well drilling tool
US4019591A (en) * 1975-06-09 1977-04-26 Engineering Enterprises, Inc. Well drilling tool
FR2398875A1 (en) * 1977-07-29 1979-02-23 Mobil Oil Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottom
US4476944A (en) * 1979-03-23 1984-10-16 Baker International Corporation Method of providing a fluid seal in downhole drilling apparatus
US4260032A (en) * 1979-11-26 1981-04-07 Engineering Enterprises, Inc. Well drilling tool
US4493381A (en) * 1983-04-18 1985-01-15 Kabushiki Kaisha Komatsu Seisakusho Turbodrill with a reduced drilling fluid pressure on a floating piston
US4876672A (en) * 1988-03-01 1989-10-24 Atlantic Richfield Company Ultrasonic logging tool with rotating exposed transducer
GB9217537D0 (en) * 1992-08-18 1992-09-30 Nodeco Ltd Improvements in or relating to protective arrangements
US5381868A (en) * 1993-10-08 1995-01-17 Triumph*Lor Inc Sealed bearing roller reamer
GB9411228D0 (en) * 1994-06-04 1994-07-27 Camco Drilling Group Ltd A modulated bias unit for rotary drilling
US6109790A (en) * 1998-09-30 2000-08-29 Pegasus International, Inc. Lubricant circulation system for downhole bearing assembly
GB2365038B (en) * 2000-07-27 2004-06-02 Walker & Co James Ltd Sealing structure for a rock drill bit
US7417920B2 (en) * 2001-03-13 2008-08-26 Baker Hughes Incorporated Reciprocating pulser for mud pulse telemetry
US6898150B2 (en) * 2001-03-13 2005-05-24 Baker Hughes Incorporated Hydraulically balanced reciprocating pulser valve for mud pulse telemetry
CN2612792Y (en) * 2003-04-15 2004-04-21 天津市景宝科技有限公司 Down-hole high pressure continuous stream jetting drilling tool
US8931579B2 (en) * 2005-10-11 2015-01-13 Halliburton Energy Services, Inc. Borehole generator
US8174929B2 (en) 2007-07-02 2012-05-08 Schlumberger Technology Corporation Spindle for mud pulse telemetry applications
CA2966354C (en) * 2012-12-21 2018-06-26 Evolution Engineering Inc. Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same
CN107587872A (en) * 2017-08-24 2018-01-16 中国石油集团渤海钻探工程有限公司 A kind of double geologic parameter measuring instrument entirety series-mountings of downhole drill
CN113309512A (en) * 2021-05-25 2021-08-27 吉林大学 Erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor and preparation method thereof
CN115306787B (en) * 2022-10-10 2022-12-23 烟台中宇航空液压有限公司 Oil leakage prevention device for electro-hydraulic servo valve

Also Published As

Publication number Publication date
FR2138842A1 (en) 1973-01-05
GB1374678A (en) 1974-11-20
FR2138842B1 (en) 1977-01-14
US3741321A (en) 1973-06-26
DE2224699A1 (en) 1972-11-30

Similar Documents

Publication Publication Date Title
CA986153A (en) Face seal
CA982165A (en) Sealing means
AU431687B2 (en) Improvements in or relating to fluid machines
AU462021B2 (en) Strap sealing tool
CA965062A (en) Sealing cartons
AU470086B2 (en) Improvements in security seals
CA965751A (en) Packing machines
AU4963272A (en) Sealing polystyrne surfaces
AU461749B2 (en) Improvements in or relating to closure sealing machines
AU462580B2 (en) Means to prevent inward leakage across seals in well tool
CA881273A (en) Sealing in hydraulic machines
CA880763A (en) Seal primarily for a turbine
CA874234A (en) Seals for hydraulic machines
AU465297B2 (en) Face seals
CA928736A (en) Face seals
CA877828A (en) Seal
AU464381B2 (en) A bottlecap with sealing
AU2881071A (en) Improvements in or relating to sealing or capping strips for structures
CA941403A (en) Packing seals
CA875975A (en) Seals
CA879561A (en) Seals
AU2750371A (en) A bottlecap with sealing
AU459214B2 (en) Improvements in sealing rings
CA866358A (en) Battery seal
CA871672A (en) Sealing