CA2111133A1 - High Strength, Low Torque Threaded Pipe Connection - Google Patents
High Strength, Low Torque Threaded Pipe ConnectionInfo
- 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
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.
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.
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) |
-
1993
- 1993-12-10 CA CA 2111133 patent/CA2111133C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2111133C (en) | 1998-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20131210 |