US 12,146,591 B2
Threaded connection for exploration and production of a hydrocarbon well
Jorge Alberto Cordero, Amsterdam (NL); and David Mutis Rueda, Houston, TX (US)
Assigned to Hydril Company, Houston, TX (US)
Appl. No. 17/626,396
Filed by Hydril Company, Houston, TX (US)
PCT Filed Jul. 13, 2020, PCT No. PCT/US2020/041757
§ 371(c)(1), (2) Date Jan. 11, 2022,
PCT Pub. No. WO2021/011443, PCT Pub. Date Jan. 21, 2021.
Claims priority of provisional application 62/873,594, filed on Jul. 12, 2019.
Claims priority of application No. N2023800 (NL), filed on Sep. 10, 2019.
Prior Publication US 2022/0290784 A1, Sep. 15, 2022
Int. Cl. F16L 15/06 (2006.01); F16L 15/00 (2006.01); E21B 17/042 (2006.01)
CPC F16L 15/002 (2013.01) [F16L 15/06 (2013.01); E21B 17/042 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A threaded connection for exploration and production of a hydrocarbon well and comprising:
a coupling member having a coupling outer diameter COD and comprising:
a first box part comprising first inner threads,
a second box part comprising second inner threads, and
a rim part comprising a radially extending inner rim, wherein
the rim part is located between the first box part and the second box part and has a radial rim part thickness B and an axial rim part length C, and
the first box part and the second box part have a radial box part thickness A located between the inner rim and the first inner threads and the second inner threads, respectively,
a first tubular member comprising a first unthreaded tube part, and a first pin part comprising first outer threads, and
a second tubular member comprising a second unthreaded tube part, and a second pin part comprising second outer threads, wherein
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 first tubular member and the second tubular member have a tube inner diameter TID,
the first inner threads, the second inner threads, the first outer threads, and the second outer threads have dovetail wedge threads,
the first inner threads and the first outer threads are configured to form a first inner primary seal at final make-up,
the second inner threads and the second outer threads are configured to form a second inner primary seal at final make-up, and
the threaded connection satisfies the following conditions: COD>TOD
B=about((COD−TID)/2)
C>0, and
A<W.