GB662551A - Improvements in or relating to means for centralising pipes in borings made in the earth - Google Patents

Improvements in or relating to means for centralising pipes in borings made in the earth

Info

Publication number
GB662551A
GB662551A GB719449A GB719449A GB662551A GB 662551 A GB662551 A GB 662551A GB 719449 A GB719449 A GB 719449A GB 719449 A GB719449 A GB 719449A GB 662551 A GB662551 A GB 662551A
Authority
GB
United Kingdom
Prior art keywords
pipe
rings
blades
march
locate
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
GB719449A
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.)
JOSEPH CASLAKE JUNIOR
Original Assignee
JOSEPH CASLAKE JUNIOR
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 JOSEPH CASLAKE JUNIOR filed Critical JOSEPH CASLAKE JUNIOR
Priority to GB719449A priority Critical patent/GB662551A/en
Publication of GB662551A publication Critical patent/GB662551A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/66—Mould-pipes or other moulds
    • E02D5/665—Mould-pipes or other moulds for making piles

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

662,551. Wells; pipe centering. CASLAKE, J. March 3, 1950. [March 16, 1949] No. 7194/49. Class 85. Means for centralizing drill pipe or casing in a borehole comprises a plurality of outwardly bowed metal blades 9 which extend longitudinally of the pipe and a pair of blade-engaging rings 4, 5 which loosely surround the pipe and which so receive and locate the channelled ends 15, 16, 17 of the blades in spaced recesses or slots so that, on radial compression of the blades, the rings adjust themselves longitudinally of the pipe without becoming disengaged from the blades. Two locating rings 6, 7 are so arranged adjacent the rings and secured to the pipe by a grub-screw 14 and weld in holes 13 to locate the blades at the desired position along the pipe that they do not interfere with the movement of the rings. In one form, the rings 4, 5 are formed by curved inner sections 10 spaced apart around the pipe and attached together by welding outer sections 11 across the gaps 12 between the inner sections. In another form, each blade-engaging ring comprises axially spaced apart annular parts accommodating therebetween a locating ring which is radially confined by bridge pieces connecting the annular parts together.
GB719449A 1949-03-16 1949-03-16 Improvements in or relating to means for centralising pipes in borings made in the earth Expired GB662551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB719449A GB662551A (en) 1949-03-16 1949-03-16 Improvements in or relating to means for centralising pipes in borings made in the earth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB719449A GB662551A (en) 1949-03-16 1949-03-16 Improvements in or relating to means for centralising pipes in borings made in the earth

Publications (1)

Publication Number Publication Date
GB662551A true GB662551A (en) 1951-12-05

Family

ID=9828396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB719449A Expired GB662551A (en) 1949-03-16 1949-03-16 Improvements in or relating to means for centralising pipes in borings made in the earth

Country Status (1)

Country Link
GB (1) GB662551A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727576A (en) * 1952-04-09 1955-12-20 Jesse E Hall Centralizers
DE1017112B (en) * 1955-03-11 1957-10-10 Soeding & Halbach J C Device for guiding the drill rod in boreholes
US4042022A (en) * 1974-10-08 1977-08-16 Weatherford Oil Tool (U.K.) Limited Devices for centralizing pipes in borings
DE2802109A1 (en) * 1977-01-27 1978-08-03 Weatherford Lamb BOREHOLE CENTER AND METHOD FOR ITS MANUFACTURING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727576A (en) * 1952-04-09 1955-12-20 Jesse E Hall Centralizers
DE1017112B (en) * 1955-03-11 1957-10-10 Soeding & Halbach J C Device for guiding the drill rod in boreholes
US4042022A (en) * 1974-10-08 1977-08-16 Weatherford Oil Tool (U.K.) Limited Devices for centralizing pipes in borings
DE2802109A1 (en) * 1977-01-27 1978-08-03 Weatherford Lamb BOREHOLE CENTER AND METHOD FOR ITS MANUFACTURING

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