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US 2026/0117602 A1Published application
Premium threaded connections and methods of making and using same
AssigneeCommand Tubular Products, LLC
InventorsMILTON HRUSCHAK, CHARLES GARVEY
Life of this patent
Estimating the term…
Abstract
Premium thread designs, premium threaded connections, and drill pipe having the premium threaded connections. Methods for making and assembling drill pipes with premium threaded connections.
Claims29
A threaded box connection for a first tubular, comprising:
- a) a box shoulder stop;
- b) a box shoulder bearing surface;
- c) a face bearing surface;
- d) a face stop;
- e) an outer face bevel;
- f) box threads extending between the face bearing surface and the box shoulder bearing surface;
- g) the threaded box connection adapted to mate with a corresponding threaded pin connection of a second tubular, the box shoulder bearing surface adapted to retain a corresponding nose bearing surface of the threaded pin connection;
- h) the box threads are tapered threads having a pitch of about 0.25 inch (4 TPI), a pitch diameter of about 5.050 inches, an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft., a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data;
- i) the outer face bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch);
- j) the face bearing surface having a counterbore diameter of 5.290 inches (plus or minus 0.010 inch);
- and
- k) the box shoulder bearing surface having diameter of about 4.380 inches (plus or minus 0.010 inch).
9 more elements
A threaded pin connection for a first tubular, comprising:
- a) a nose;
- b) a nose bearing surface;
- c) a pin shoulder bearing surface;
- d) a pin shoulder stop;
- e) an outer pin shoulder bevel;
- f) pin threads extending between the nose bearing surface and the pin shoulder bearing surface;
- g) the threaded pin connection adapted to mate with a corresponding threaded box connection of a second tubular, wherein the nose bearing surface is adapted to be retained by a mating box shoulder bearing surface of the threaded box connection;
- h) the pin threads are tapered threads having a pitch of about 0.25 inch (4 TPI), an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft, a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data;
- i) the outer pin shoulder bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch);
- j) the pin shoulder bearing surface having cylinder diameter of about 5.130 inches (plus or minus 0.010 inch);
- and
- k) the nose bearing surface having a diameter of about 4.254 inches (plus or minus 0.010 inch).
9 more elements
A tubular threaded connection comprising:
- a) a threaded box connection of a first tubular, comprising:
- i) a box shoulder stop;
- ii) a box shoulder bearing surface;
- iii) a face bearing surface;
- iv) a face stop;
- v) a face stop bevel;
- and
- vi) box threads extending between the face bearing surface and the box shoulder bearing surface;
- b) a threaded pin connection of a second tubular, comprising:
- i) a nose;
- ii) a nose bearing surface;
- iii) a pin shoulder bearing surface;
- iv) a pin shoulder stop;
- v) an outer pin shoulder bevel;
- vi) pin threads extending between the nose bearing surface and the pin shoulder bearing surface;
- c) the threaded box connection and the threaded pin connection mate;
- d) the box shoulder bearing surface retains the nose bearing surface;
- e) the box threads are tapered threads having a pitch of about 0.25 inch (4 TPI), a pitch diameter of about 5.050 inches, an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft., a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, the box outer face bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), the face bearing surface having a counterbore diameter of 5.290 inches (plus or minus 0.010 inch);
- and the box shoulder bearing surface having diameter of about 4.380 inches (plus or minus 0.010 inch);
- and
- f) the pin threads are tapered threads having a pitch of about 0.25 inch (4 TPI), an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft, a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, the outer pin shoulder bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), the pin shoulder bearing surface having cylinder diameter of about 5.130 inches (plus or minus 0.010 inch), and the nose bearing surface having a diameter of about 4.254 inches (plus or minus 0.010 inch).
18 more elements
A method comprising:
- a) providing a tubular having a non-premium threaded box connection and a non-premium threaded pin connection;
- b) reducing a box outer diameter of the non-premium threaded box connection and enlarging a box inner diameter of the non-premium threaded box connection to provide a prepared box connection;
- c) applying a box premium thread to the prepared box connection;
- d) reducing a pin outer diameter of the non-premium threaded pin connection and enlarging a pin inner diameter of the non-premium threaded pin connection to provide a prepared pin connection;
- e) and applying a pin premium thread to the prepared pin connection, wherein the tubular is provided with a box premium connection and a pin premium connection;
- f) the box premium thread comprises tapered threads having a pitch of about 0.25 inch (4 TPI), a pitch diameter of about 5.050 inches, an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft., a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, the box outer face bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), the face bearing surface having a counterbore diameter of 5.290 inches (plus or minus 0.010 inch);
- and the box shoulder bearing surface having diameter of about 4.380 inches (plus or minus 0.010 inch);
- g) the pin premium thread comprises tapered threads having a pitch of about 0.25 inch (4 TPI), an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft, a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, the outer pin shoulder bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), the pin shoulder bearing surface having cylinder diameter of about 5.130 inches (plus or minus 0.010 inch), and the nose bearing surface having a diameter of about 4.254 inches (plus or minus 0.010 inch);
- h) retaining a pin shoulder bearing surface of the threaded pin connection with a face bearing surface of the threaded box connection;
- i) abutting a face stop of the box connection and a pin shoulder stop of the pin connection, abutting a nose of the pin connection and a box shoulder stop of the box connection, or both;
- j) defining a first annular bearing gap between a box shoulder bearing surface of the box connection and a nose bearing surface of the pin connection;
- k) defining a second annular bearing gap between a tail bearing surface of the pin connection and a face bearing surface of the box connection;
- l) the first bearing gap or the second bearing gap or both are in the range of about 0.01 inch to about 0.10 inch.
10 more elements
A method of converting a tubular having non-premium threaded connections to premium threaded connections, comprising:
- a) providing the tubular, having a non-premium threaded box connection and a non-premium threaded pin connection;
- b) heating a hardband portion of the non-premium threaded box connection to about 950 degrees Fahrenheit and reducing a box outer diameter of the non-premium threaded box connection;
- c) enlarging a box inner diameter of the non-premium threaded box connection, wherein a prepared box connection is provided;
- d) applying a box thread to the prepared box connection, wherein the box threads have a pitch of about 0.25 inch (4 TPI), a pitch diameter of about 5.050 inches, an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft., a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, a box outer face bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), a face bearing surface having a counterbore diameter of 5.290 inches (plus or minus 0.010 inch);
- and a box shoulder bearing surface having diameter of about 4.380 inches (plus or minus 0.010 inch);
- e) reducing a pin outer diameter of the non-premium threaded pin connection;
- f) enlarging an inner diameter of the pin connection, wherein a prepared pin connection is provided;
- and
- g) applying a pin thread to the prepared pin connection, wherein the pin threads have a pitch of about 0.25 inch (4 TPI), an angle of about 60 degrees, a crest to root height of about 0.121844 inch, a taper of about 2.0 in/ft, a crest width of about 0.065 inch, and a root width of about 0.038 inch, and conform to thread gauge V-0.038R thread form design data, an outer pin shoulder bevel having bevel diameter of about 6.015 inches (plus or minus 0.016 inch), a pin shoulder bearing surface having cylinder diameter of about 5.130 inches (plus or minus 0.010 inch), and a nose bearing surface having a diameter of about 4.254 inches (plus or minus 0.010 inch).
6 more elements
Dependencies are inferred from the claim text.