GB749731A - Improvements relating to bridging plugs for bore holes - Google Patents

Improvements relating to bridging plugs for bore holes

Info

Publication number
GB749731A
GB749731A GB3445853A GB3445853A GB749731A GB 749731 A GB749731 A GB 749731A GB 3445853 A GB3445853 A GB 3445853A GB 3445853 A GB3445853 A GB 3445853A GB 749731 A GB749731 A GB 749731A
Authority
GB
United Kingdom
Prior art keywords
plug
pin
wood
plugs
outer plug
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
GB3445853A
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.)
JOHN MACFARLANE GIBSON
BP PLC
Original Assignee
JOHN MACFARLANE GIBSON
BP PLC
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 JOHN MACFARLANE GIBSON, BP PLC filed Critical JOHN MACFARLANE GIBSON
Priority to GB3445853A priority Critical patent/GB749731A/en
Publication of GB749731A publication Critical patent/GB749731A/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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fats And Perfumes (AREA)

Abstract

749,731. Borehole plugs. BRITISH PETROLEUM CO., Ltd., [formerly ANGLO-IRANIAN OIL CO., Ltd.], CLARK, A., and GIBSON, J. M. Nov. 24, 1954 [Dec. 10, 1953], No. 34458/53. Class 85 A plug for boreholes has an outer plug 10 formed by a number of longitudinal sections of wood, or other destructible material, held together by copper wire wound in grooves 12 although spring coils or rubber bands may be used. Each section is attached to the flange on a drill pipe 15 by a wood screw 14. An inner wood plug 19 having a tapered portion 20 and a cylindrical portion 25 fits in a similarly shaped axial bore in the outer plug and is held in position by a wooden dowel pin 18. A brass shear pin attaches a fishing pin 29 to the upper end of the inner plug 19 by which the plug 19 is pulled upwards forcing the sections of the outer plug 10 outwards against the wall of the hole and breaking their screw connections with the pipe 15. When sufficient tension is applied to the fishing pin 29 the shear pin breaks and the pin 29, and also the tube 15, can be withdrawn. The plugs may be drilled out.
GB3445853A 1953-12-10 1953-12-10 Improvements relating to bridging plugs for bore holes Expired GB749731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3445853A GB749731A (en) 1953-12-10 1953-12-10 Improvements relating to bridging plugs for bore holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3445853A GB749731A (en) 1953-12-10 1953-12-10 Improvements relating to bridging plugs for bore holes

Publications (1)

Publication Number Publication Date
GB749731A true GB749731A (en) 1956-05-30

Family

ID=10365895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3445853A Expired GB749731A (en) 1953-12-10 1953-12-10 Improvements relating to bridging plugs for bore holes

Country Status (1)

Country Link
GB (1) GB749731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6712153B2 (en) 2001-06-27 2004-03-30 Weatherford/Lamb, Inc. Resin impregnated continuous fiber plug with non-metallic element system
US8002030B2 (en) 2003-07-14 2011-08-23 Weatherford/Lamb, Inc. Retrievable bridge plug

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6712153B2 (en) 2001-06-27 2004-03-30 Weatherford/Lamb, Inc. Resin impregnated continuous fiber plug with non-metallic element system
US7779928B2 (en) 2001-06-27 2010-08-24 Weatherford/Lamb, Inc. Non-metallic mandrel and element system
US7779927B2 (en) 2001-06-27 2010-08-24 Weatherford/Lamb, Inc. Non-metallic mandrel and element system
US7789136B2 (en) 2001-06-27 2010-09-07 Weatherford/Lamb, Inc. Non-metallic mandrel and element system
US7789137B2 (en) 2001-06-27 2010-09-07 Weatherford/Lamb, Inc. Non-metallic mandrel and element system
US7789135B2 (en) 2001-06-27 2010-09-07 Weatherford/Lamb, Inc. Non-metallic mandrel and element system
US8002030B2 (en) 2003-07-14 2011-08-23 Weatherford/Lamb, Inc. Retrievable bridge plug

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