GB260140A - Improvements in or relating to well drilling apparatus - Google Patents

Improvements in or relating to well drilling apparatus

Info

Publication number
GB260140A
GB260140A GB153826A GB153826A GB260140A GB 260140 A GB260140 A GB 260140A GB 153826 A GB153826 A GB 153826A GB 153826 A GB153826 A GB 153826A GB 260140 A GB260140 A GB 260140A
Authority
GB
United Kingdom
Prior art keywords
casing head
breech block
drill rods
nut
pressure
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
GB153826A
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.)
NICHOLAS ORD WATSON
Original Assignee
NICHOLAS ORD WATSON
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 NICHOLAS ORD WATSON filed Critical NICHOLAS ORD WATSON
Priority to GB153826A priority Critical patent/GB260140A/en
Publication of GB260140A publication Critical patent/GB260140A/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
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers

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)
  • Earth Drilling (AREA)

Abstract

260,140. Beazley, A. T., and Watson, N. O. Jan. 19, 1926. Wells; borehole apparatus.-In welldrilling apparatus the drilling means carries a sealing member which is normally out of engagement with the casing head and which upon upward movement contacts with the casing head to effect a seal; further sealing means may then be applied above the casing head. The well casing 1 has a valve 2 and is connected to the casing head 6 by stays 8. A breech block 9 is connected to the casing head by mutilated thread's and a nut 16 normally rests loosely on the breech block ; packing 11 is provided below the breech block. The drive stem 17 is connected to the drill rods 20 by a nipple 19 and a sealing means 21, the latter comprising an enlargement 24 above which is a sealing part 25 adapted when raised to make a line-contact seal with the breech block, or the part 25 may be of yielding material such as lead. Above the part 25 are mutilated threads 26 for co-operation with the nut 16. In the nipple 19 is a ball valve 30 which closes the passage through the drill rods when pressure is encountered in the well. The drill rods are then raised so that the part 25 seals off the casing head 6 while the pressure is relieved through a valve 5 ; the seal may be assisted by applying a split ring 28 of lead &c. above the breech block. If high pressures are encountered, the nut 16 is engaged with the threads 26 to hold the drill rods and compress the ring 28 ; the drive stem 17 is then removed and a T-piece 30<c> attached, the T-piece having a screw 31 for opening the ball valve 30 to assist in relieving the pressure.
GB153826A 1926-01-19 1926-01-19 Improvements in or relating to well drilling apparatus Expired GB260140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB153826A GB260140A (en) 1926-01-19 1926-01-19 Improvements in or relating to well drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB153826A GB260140A (en) 1926-01-19 1926-01-19 Improvements in or relating to well drilling apparatus

Publications (1)

Publication Number Publication Date
GB260140A true GB260140A (en) 1926-10-28

Family

ID=9723707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB153826A Expired GB260140A (en) 1926-01-19 1926-01-19 Improvements in or relating to well drilling apparatus

Country Status (1)

Country Link
GB (1) GB260140A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589188A2 (en) * 2004-04-19 2005-10-26 Control Flow Inc. Coupling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7163054B2 (en) 2003-06-23 2007-01-16 Control Flow Inc. Breechblock connectors for use with oil field lines and oil field equipment
EP1589188A2 (en) * 2004-04-19 2005-10-26 Control Flow Inc. Coupling system
EP1589188A3 (en) * 2004-04-19 2006-03-01 Control Flow Inc. Coupling system

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