EP1032748B1 - Flexible sinkgewichtanordnung - Google Patents

Flexible sinkgewichtanordnung Download PDF

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Publication number
EP1032748B1
EP1032748B1 EP98955012A EP98955012A EP1032748B1 EP 1032748 B1 EP1032748 B1 EP 1032748B1 EP 98955012 A EP98955012 A EP 98955012A EP 98955012 A EP98955012 A EP 98955012A EP 1032748 B1 EP1032748 B1 EP 1032748B1
Authority
EP
European Patent Office
Prior art keywords
flexible
sinker bar
bar assembly
wireline
socket
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 - Lifetime
Application number
EP98955012A
Other languages
English (en)
French (fr)
Other versions
EP1032748A1 (de
EP1032748A4 (de
Inventor
Larry V. Cooper
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1032748A1 publication Critical patent/EP1032748A1/de
Publication of EP1032748A4 publication Critical patent/EP1032748A4/de
Application granted granted Critical
Publication of EP1032748B1 publication Critical patent/EP1032748B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables

Definitions

  • the invention relates to apparatus for recovering logging tools from a well bore and, more particularly, to improved, flexible connectors which may, preferably, be in the form of flexible wire rope sinker bar assemblies to replace the known type of rigid sinker bar.
  • improved, flexible connectors which may, preferably, be in the form of flexible wire rope sinker bar assemblies to replace the known type of rigid sinker bar.
  • Conventional wireline fishing operations are comprised of a number of conventional steps, including:
  • a flexible sinker bar assembly for use with a top drive housing in wireline stripping operations and the like in connection with a wellbore, said apparatus including a flexible connector member having a pair of opposite ends and top and bottom socket members fixedly secured to said ends for adding increased weight thereto, and means for attachment of said sockets to other wireline hardware, characterised in that at least one dog knot is secured to said flexible member for further increasing the weight of said flexible sinker bar.
  • a flexible connector member having a pair of opposite ends and top and bottom socket members fixedly secured to said ends for adding increased weight thereto, and means for attachment of said sockets to other wireline hardware, characterised in that at least one dog knot is secured to said flexible member for further increasing the weight of said flexible sinker bar.
  • a wireline stripping assembly that encompasses a plurality of different sections shown bracketed in FIG. 1 as including an upper rope socket section 12 that provides a slim-line socket 14, and a lower rope socket section 16 that provides a similar slim-line socket 18 which is sized to cooperate with a hang off plate 20.
  • spear section 22 Located above the lower rope socket section 16 is a spear section 22 comprised of a spear 24 having a tapered head 26 to provide for easy entry into an overlying overshot 28 that forms the overshot section 30.
  • a swivel section 32 includes a rugged dual bearing swivel 34.
  • sinker bar section 40 Interposed between swivel section 32 and upper rope socket section 12 is a sinker bar section 40 that encompasses a flexible sinker bar assembly, generally indicated by the numeral 42, the details of which are best shown in enlarged form in FIG. 2.
  • Sinker bar assembly 42 is, in one form of the invention, comprised of a flexible connector in the form of a length of wire rope 44, that is shown in the form of a woven strand or cable, that provides flexibility to the sinker bar assembly 42 and which is fitted at its ends with a respective top socket 46 and a bottom socket 48, each having an internally threaded box connection 50 and 52 for attachment to other wireline hardware, such as swivel 34 and the like.
  • Top socket 46 and bottom socket 48 are similarly constructed and may be installed on the wire rope or cable 44 with a cured resin 54 shown in the sectional view of top socket 46.
  • Resin 54 may be applied in liquid or paste form and is then allowed to cure, i.e., harden to provide a high strength bond between the sockets and wire rope.
  • Sinker bar assembly 42 is amenable to having additional weight applied thereto through the use of a plurality of dog knots 60, one of which is shown in section in FIG. 2 below top socket 46.
  • the dog knots 60 can be swaged onto the rope or cable 44 while maintaining flexibility of the assembly 42.
  • the length shown at L in FIG. 2, extending between top socket 46 and bottom socket 48, can be on the order of approximately 20 feet.
  • Sockets 46 and 48 are purposely thin in diameter, shown at D near the bottom of socket 48 to provide clearances for running inside a drill pipe (not shown), but provide heavy duty construction for make-up to wireline retrieval assemblies.
  • Dog knots 60 are added for sinker bar assemblies that may have wire rope 44 between 1 3/8 inch and 2 inch; the added weight improves the movement of the assembly through the drill pipe.
  • FIGS. 3 and 4 illustrate a modification of the apparatus shown in FIGS. 1 and 2.
  • a modified wireline stripping assembly generally indicated by the numeral 100, that encompasses a plurality of different sections shown bracketed in FIG. 3 as including an upper rope socket section 112 that provides a slim-line socket 114, and a lower rope socket section 116 that provides a similar slim-line socket 118 which is sized to cooperate with a hang off plate 120.
  • spear section 122 Located above the lower rope socket section 116 is a spear section 122 comprised of a spear 124 having a tapered head 126 to provide for easy entry into an overlying overshot 128 that forms the overshot section 130.
  • a swivel section 132 includes a rugged dual bearing swivel 134.
  • sinker bar section 140 Interposed between swivel section 132 and upper rope socket section 112 is a sinker bar section 140 that encompasses a flexible sinker bar assembly, generally indicated by the numeral 142, the details of which are best shown in enlarged form in FIG. 4.
  • Sinker bar assembly 142 is, preferably, comprised of a flexible connector in the form of a length of wire rope 144, that is shown in the form of a woven strand or cable, that provides flexibility to the sinker bar assembly 142 and is fitted at its ends with a respective top socket 146 and a bottom socket 148, each preferably having an internally threaded box connection 150 and 152, or other provision, for attachment to other wireline hardware, such as swivel 134 and the like.
  • Top socket 146 and bottom socket 148 are similarly constructed to provide a slim-line socket configured for large diameter wire rope, or the like, and are installed on the wire rope or cable 144, preferably by being swaged thereon, to provide for increased sinker bar weight and assurance against slippage or disconnection from the flexible connector, wire rope, strand or cable.
  • FIGS. 3 and 4 does not include the provision of a plurality of dog knots, such as the dog knots 60 shown in FIGS. 1 and 2. There are some operations for which the additional weight of the dog knots is not necessary.
  • the length shown at L-2 in FIG. 4, extending between top socket 146 and bottom socket 148, can be on the order of approximately 20 feet, more or less.
  • Sockets 146 and 148 are purposely thin in diameter, shown at D-2 near the bottom of socket 148 to provide clearances for running inside a drill pipe (not shown), but provide heavy duty construction for make-up to wireline retrieval assemblies.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Mechanical Means For Catching Fish (AREA)
  • Ropes Or Cables (AREA)
  • Knitting Machines (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Silicon Polymers (AREA)

Claims (7)

  1. Biegsame Sinkgewichtanordnung zur Verwendung mit einem Gehäuse für einen oberen Antrieb bei Drahtseil-Abräumvorgängen und dergleichen im Zusammenhang mit einer Brunnenbohrung, wobei die Anordnung ein biegsames Verbindungselement (44) mit einem Paar von einander gegenüberliegenden Enden sowie obere und untere Fassungselemente (46, 48 oder 146 und 148), die fest an den Enden angebracht sind, um diesen zusätzliches Gewicht zu verleihen, sowie Mittel zur Befestigung der Fassungen an anderen Drahtseilteilen aufweist, dadurch gekennzeichnet, daß an dem biegsamen Element mindestens ein massiver Kloben (60) angebracht ist, um das Gewicht des biegsamen Sinkgewichtes weiter zu erhöhen.
  2. Biegsame Sinkgewichtanordnung nach Anspruch 1, bei der die Fassungselemente (46 und 48) mit gehärtetem Harz (54) an dem Verbindungselement befestigt sind.
  3. Biegsame Sinkgewichtanordnung nach Anspruch 1, wobei die Fassungselemente (146 und 148) an dem Verbindungselement durch Aufpressen angebracht sind.
  4. Biegsame Sinkgewichtanordnung nach einem vorhergehenden Anspruch, wobei das Sinkgewicht eine Länge von etwa 20 Fuß aufweist.
  5. Biegsame Sinkgewichtanordnung nach einem vorhergehenden Anspruch, wobei das biegsame Verbindungselement (44) aus Schwermetall-Drahtseil besteht.
  6. Biegsame Sinkgewichtanordnung nach einem der Ansprüche 1 bis 4, wobei das biegsame Verbindungselement (44) aus biegsamem Schwermetallkabel besteht.
  7. Biegsame Sinkgewichtanordnung nach einem vorhergehenden Anspruch, wobei die Mittel zur Befestigung der Fassungen an anderen Drahtseilteilen Gewinde-Endabschnitte an freien Enden der Fassungen aufweisen.
EP98955012A 1997-10-21 1998-10-21 Flexible sinkgewichtanordnung Expired - Lifetime EP1032748B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US6319797P 1997-10-21 1997-10-21
US8089398P 1998-04-07 1998-04-07
US80893 1998-04-07
PCT/US1998/022170 WO1999020871A1 (en) 1997-10-21 1998-10-21 Flexible sinker bar assemblies
US63197 2002-03-28

Publications (3)

Publication Number Publication Date
EP1032748A1 EP1032748A1 (de) 2000-09-06
EP1032748A4 EP1032748A4 (de) 2001-01-31
EP1032748B1 true EP1032748B1 (de) 2004-09-01

Family

ID=26743151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98955012A Expired - Lifetime EP1032748B1 (de) 1997-10-21 1998-10-21 Flexible sinkgewichtanordnung

Country Status (7)

Country Link
EP (1) EP1032748B1 (de)
AT (1) ATE275236T1 (de)
AU (1) AU1191599A (de)
CA (1) CA2309054C (de)
DE (1) DE69826025D1 (de)
EA (1) EA001690B1 (de)
WO (1) WO1999020871A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108825149B (zh) * 2018-09-05 2024-05-28 北京创一格石油技术服务有限公司 一种抽油机的毛辫子头及一种毛辫子

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149277A (en) * 1959-06-04 1964-09-15 Sun Oil Co Borehole logging apparatus including flexible detector and weighting means
US4024913A (en) * 1974-03-25 1977-05-24 Grable Donovan B Well installations employing non-metallic lines, tubing casing and machinery
US4901804A (en) * 1988-08-15 1990-02-20 Eastman Christensen Company Articulated downhole surveying instrument assembly

Also Published As

Publication number Publication date
EA001690B1 (ru) 2001-06-25
EP1032748A1 (de) 2000-09-06
CA2309054C (en) 2005-11-15
AU1191599A (en) 1999-05-10
EA200000447A1 (ru) 2000-12-25
DE69826025D1 (de) 2004-10-07
EP1032748A4 (de) 2001-01-31
WO1999020871A1 (en) 1999-04-29
CA2309054A1 (en) 1999-04-29
ATE275236T1 (de) 2004-09-15

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