CA2111133A1 - High Strength, Low Torque Threaded Pipe Connection - Google Patents

High Strength, Low Torque Threaded Pipe Connection

Info

Publication number
CA2111133A1
CA2111133A1 CA 2111133 CA2111133A CA2111133A1 CA 2111133 A1 CA2111133 A1 CA 2111133A1 CA 2111133 CA2111133 CA 2111133 CA 2111133 A CA2111133 A CA 2111133A CA 2111133 A1 CA2111133 A1 CA 2111133A1
Authority
CA
Canada
Prior art keywords
pin
threads
box
flank
pipe connection
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.)
Granted
Application number
CA 2111133
Other languages
French (fr)
Other versions
CA2111133C (en
Inventor
John Dawson Watts
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
Priority claimed from US07/992,164 external-priority patent/US5427418A/en
Application filed by Individual filed Critical Individual
Publication of CA2111133A1 publication Critical patent/CA2111133A1/en
Priority to PCT/US1994/014125 priority Critical patent/WO1995016161A1/en
Application granted granted Critical
Publication of CA2111133C publication Critical patent/CA2111133C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

A threaded pipe connection as shown in Figures 1, 4, 5, 6 or 7, having a thread form such as depicted in Figures 8-11, that has:
improved sealing; increased resistance to mechanical loads; easy assembly and low makeup torque. Both pin (31) and box (45) may be cut on non-upset pipe ends and result in nearly 100 percent joint efficiency. Tension flank (33) and compression flank (34) may be formed on pin (31) at high flank angles measured from the tubular axis so as to withstand high axial loads without forcing the pin inwardly and the box outwardly, which would tend to separate the mating threads, break the seal and jump threads.
Low torque is assured by the complementary forms of pin threads (32) and box threads (42) which confine the thread dope (49) to remain in the root gaps (52) and (54) during assembly.
CA 2111133 1992-12-17 1993-12-10 High strength, low torque threaded pipe connection Expired - Lifetime CA2111133C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1994/014125 WO1995016161A1 (en) 1993-12-10 1994-12-08 High-strength, low-torque threaded tubular connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/992,164 US5427418A (en) 1986-07-18 1992-12-17 High strength, low torque threaded tubular connection
US992,164 1992-12-17

Publications (2)

Publication Number Publication Date
CA2111133A1 true CA2111133A1 (en) 1994-06-18
CA2111133C CA2111133C (en) 1998-04-14

Family

ID=25537993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2111133 Expired - Lifetime CA2111133C (en) 1992-12-17 1993-12-10 High strength, low torque threaded pipe connection

Country Status (1)

Country Link
CA (1) CA2111133C (en)

Also Published As

Publication number Publication date
CA2111133C (en) 1998-04-14

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20131210