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BR-112022000485-B1 - THREADED CONNECTION

BR112022000485B1BR 112022000485 B1BR112022000485 B1BR 112022000485B1BR-112022000485-B1

Abstract

THREADED CONNECTION. A threaded connection for exploration and production of a hydrocarbon well comprising a coupling member, a first tubular member and a second tubular member, wherein the coupling member has an external coupling diameter, a first box part with first internal threads and a second box part with second internal threads, the first tubular member has a first unthreaded tube part and a first pin part with first external threads, the second tubular member has a second unthreaded tube part and a second pin part with second external threads, the first internal threads and the first external threads are configured to form a first internal primary seal in the final composition and the second internal threads and the second external threads are configured to form a second internal primary seal in the final composition.

Inventors

  • David Mutis Rueda
  • JORGE ALBERTO CORDERO

Assignees

  • HYDRIL COMPANY

Dates

Publication Date
20260310
Application Date
20200713
Priority Date
20190910

Claims (20)

  1. 1. Threaded connection characterized by being for exploration and production of a hydrocarbon well and comprising: - a coupling member containing an external coupling diameter COD and comprising a first box part comprising first internal threads, a second box part comprising second internal threads, and a ring part comprising an inner ring extending radially, wherein the ring part is located between the first box part and the second box part and has a thickness of radial ring part B and a length of axial ring part C, and the first box part and the second box part have a thickness of radial box part A located between the inner ring and the first internal threads and the second internal threads, respectively; - a first tubular member comprising a first unthreaded tube part and a first pin part comprising the first external threads; and - a second tubular member comprising a second unthreaded tube part and a second pin part comprising the second external threads, wherein - the first tube part does not The threaded part and the second part of the unthreaded tube have an outer diameter of the tube TOD and a radial tube wall thickness W, - - the first tubular member and the second tubular member have an inner diameter of the tube TID, - - the first internal threads, the second internal threads, the first external threads and the second external threads have dovetail wedge threads, - - the first internal threads and the first external threads are configured to form a first internal primary seal in the final composition, - - the second internal threads and the second external threads are configured to form a second internal primary seal in the final composition, and - - the threaded connection conforms to; COD > TODB = approximately ((COD - TID)/2)C > 0, and A < W.
  2. 2. Threaded connection, according to claim 1, characterized in that the threaded connection conforms to;C < 31.75 mm (1.25 inches).
  3. 3. Threaded connection, according to claim 1 or 2, characterized in that the threaded connection conforms to;C < 27.94 mm (1.1 inches).
  4. 4. Threaded connection, according to any one of claims 1 to 3, characterized in that the threaded connection conforms to; C > 6.35 mm (0.25 inches).
  5. 5. Threaded connection, according to any one of claims 1 to 4, characterized in that the threaded connection conforms to;C > 10.16 mm (0.4 inches).
  6. 6. Threaded connection, according to claim 1, characterized in that the threaded connection conforms to; 20.32 mm (0.8 inches) < C < 27.94 mm (1.1 inches).
  7. 7. Threaded connection, according to claim 1, characterized in that the threaded connection conforms to; C = 25.4 mm (1.0 inch).
  8. 8. Threaded connection, according to any one of claims 1 to 7, characterized in that the threaded connection conforms to; A < 0.9W.
  9. 9. Threaded connection, according to any one of claims 1 to 8, characterized in that the threaded connection conforms to; A < 0.8W.
  10. 10. Threaded connection, according to any one of claims 1 to 9, characterized in that the threaded connection conforms to; A > 0.7W.
  11. 11. Threaded connection, according to any one of claims 1 to 10, characterized in that the threaded connection conforms to; 114.3 mm (4.5 inches) < TOD < 244.48 mm (9 5/8 inches).
  12. 12. Threaded connection, according to any one of claims 1 to 11, characterized in that the threaded connection conforms to; 114.3 mm (4.5 inches) < TOD < 193.68 mm (7.625 inches).
  13. 13. Threaded connection, according to any one of claims 1 to 12, characterized in that the threaded connection conforms to; 114.3 mm (4.5 inches) ^ TOD ^ 139.7 mm (5.5 inches).
  14. 14. Threaded connection, according to any one of claims 1 to 13, characterized in that the threaded connection conforms to: 6.3 mm (0.250 inch) < W < 12.7 mm (0.500 inch).
  15. 15. Threaded connection, according to any one of claims 1 to 14, characterized in that the threaded connection conforms to: 7.3 mm (0.290 inch) < W < 11.1 mm (0.437 inch).
  16. 16. Threaded connection, according to any one of claims 1 to 15, characterized in that: - in a first direction from the inner rim and towards the first primary inner seal, the first internal threads and the first external threads begin to have full contact in a first initial sealing position; - in a second opposite direction from the inner rim and towards the second primary inner seal, the second internal threads and the second external threads begin to have full contact in a second initial sealing position; - the first initial sealing position is located at an axial sealing distance D from the second initial sealing position; and - the threaded connection conforms to: D > C.
  17. 17. Threaded connection, according to claim 16, characterized in that the threaded connection conforms to; 3.6 mm (0.142 inches) < (D - C)/2 < 9.9 mm (0.392 inches).
  18. 18. Threaded connection, according to claim 16, characterized in that the threaded connection conforms to; 5 mm (0.2 inches) < (D - C)/2 < 7.7 mm (0.3 inches).
  19. 19. Threaded connection, according to claim 16, characterized in that the threaded connection conforms to; (D - C)/2 = 6.1 mm (0.242 inches).
  20. 20. Threaded connection, according to any one of claims 1 to 19, characterized in that the first tubular member comprises a first pinhead, the second tubular member comprises a second pinhead, and in the final composition the first pinhead and the second pinhead are located at a distance from the inner edge, wherein optionally the radially extending inner ring is located between the first pinhead and the second pinhead.

Description

PRIORITY CLAIM [0001] This application claims priority over U.S. Patent Application No. 62/873,594 filed July 12, 2019 and Netherlands Patent Application No. N2023800 filed September 10, 2019, the full contents of which are incorporated herein by reference. FIELD OF INVENTION [0002] The invention relates to a threaded connection for exploration and production of a hydrocarbon well, comprising a coupling member, a first tubular member, and a second tubular member. Such a threaded connection comprising a coupling member for coupling the first and second tubular members end-to-end is also referred to as a “threaded and coupled” connection. [0003] In the known threaded connection, the coupling member has a coupling outer diameter COD, a first box part with first internal threads, and a second box part with second internal threads. The first box part and the second box part have a radial box part thickness A located between the first internal threads and the second internal threads. The first tubular member has a first unthreaded tube part and a first pin part with first external threads. The second tubular member has a second unthreaded tube part and a second pin part with second external threads. The first unthreaded tube part and the second unthreaded tube part have a tube outer diameter TOD and a radial tube wall thickness W. The coupling outer diameter COD is larger than the tube outer diameter TOD. The first internal threads, the second internal threads, the first external threads, and the second external threads have dovetail wedge threads. The first internal and first external threads are configured to form a first primary internal seal in the final assembly. The second internal and second external threads are configured to form a second primary internal seal in the final assembly. [0004] The first and second internal primary seals form, in the final assembly, the first line of defense against internal pressure in the threaded connection. BACKGROUND OF THE INVENTION [0005] In some situations, the known threaded connection has an outside diameter that is too large for use in the exploration and/or production of specific smaller diameter hydrocarbon wells, such as so-called thin-profiled hydrocarbon wells, sometimes referred to as narrow wellbore or narrow well finishes. SUMMARY OF THE INVENTION [0006] The invention aims to provide an improved, or at least alternative, threaded connection that can be used in said hydrocarbon wells of smaller specific diameter. [0007] This objective is achieved by a threaded connection for exploration and production of a hydrocarbon well and comprising: - a coupling member having an outer coupling diameter COD and comprising a first box part comprising first internal threads, a second box part comprising second internal threads, and a rim part comprising an inner rim extending radially, wherein the rim part is located between the first box part and the second box part and has a thickness of radial rim part B and a length of axial rim part C, and the first box part and the second box part have a thickness of radial box part A located between the inner rim and, respectively, the first internal threads and the second internal threads, - a first tubular member comprising a first unthreaded tube part and a first pin part comprising the first external threads, and - a second tubular member comprising a second unthreaded tube part and a second pin part comprising the second external threads, wherein - - the first part of The first unthreaded tube and the second unthreaded tube have an outer diameter of the tube TOD and a radial tube wall thickness W, - - the first tubular member and the second tubular member have an inner diameter of the tube TID, - - the first internal threads, the second internal threads, the first external threads and the second external threads have dovetail wedge threads, - - the first internal threads and the first external threads are configured to form a first internal primary seal in the final composition, - - the second internal threads and the second external threads are configured to form a second internal primary seal in the final composition, and - - the threaded connection conforms to; COD > TODB = approximately ((COD - TID)/2)C > 0, and A < W. [0008] COD> TOD indicates that the COD coupling outside diameter of the coupling member is larger than the TOD tube outside diameter of the first unthreaded tube portion of the first tubular member and the second unthreaded tube portion of the second tubular member. [0009] When compared with the known threaded connection, the ring portion was added between the first housing portion and the second housing portion. The thickness of the ring portion B of the ring portion is measured in the radial direction relative to a longitudinal axis of the threaded connection and the length of the ring portion C is measured in the axial direction. [0010] B = (COD - TID)/2 indicates that the ring portion extends from the out