Thread profile for threaded connection
AssigneeTenaris Connections Limited
InventorJorge Alberto Cordero Torres
Life of this patent
Estimating the term…
Abstract
Thread profile for a pin and a box of a threaded connection for exploration and production of a hydrocarbon well, comprising at least one helically extending thread turn for said pin, and at least one helically extending thread turn for said box. The thread turns have a stab flank with a stab flank height, a load flank with a load flank height, and a crest. The stab flank comprises a stab flank collision surface adjoining the stab flank with the crest. The stab flank collision surface has a first stab flank radius. The thread turns comply with: LFH < SFH , and ( 1 ) 0.2 ≤ SFR 1 SFH ≤ 0.4 , ( 2 ) wherein SFR1 is the first stab flank radius, SFH is the stab flank height, and LFH is the load flank height.
Claims22
A thread profile for a pin and a box of a threaded connection for exploration and production of a hydrocarbon well, comprising at least one helically extending thread turn for said pin, and at least one helically extending thread turn for said box, said thread turns having a stab flank with a stab flank height, a load flank with a load flank height, and a crest, wherein:
- said stab flank comprises a stab flank collision surface adjoining the stab flank with the crest;
- said stab flank collision surface has a first stab flank radius;
- and
- said thread turns comply with:
- LFH
- <
- SFH
- ,
- and
- (
- 1
- )
- 0.2
- ≤
- SFR
- 1
- SFH
- ≤
- 0.4
- ,
- (
- 2
- )
- wherein SFR1 is the first stab flank radius, SFH is the stab flank height, and LFH is the load flank height.
A pin for a threaded connection for exploration and production of a hydrocarbon well, comprising at least one helically extending thread turn, said at least one thread turn having a stab flank with a stab flank height, a load flank with a load flank height, and a crest, wherein:
- said stab flank comprises a stab flank collision surface adjoining the stab flank with the crest;
- said stab flank collision surface has a first stab flank radius;
- and
- said thread turns comply with:
- LFH
- <
- SFH
- ,
- and
- (
- 1
- )
- 0.2
- ≤
- SFR
- 1
- SFH
- ≤
- 0.4
- ,
- (
- 2
- )
- wherein SFR1 is the first stab flank radius, SFH is the stab flank height, and LFH is the load flank height.
A box for a threaded connection for exploration and production of a hydrocarbon well, comprising at least one helically extending thread turn, said at least one thread turn having a stab flank with a stab flank height, a load flank with a load flank height, and a crest, wherein:
- said stab flank comprises a stab flank collision surface adjoining the stab flank with the crest;
- said stab flank collision surface has a first stab flank radius;
- and
- said thread turns comply with:
- LFH
- <
- SFH
- ,
- and
- (
- 1
- )
- 0.2
- ≤
- SFR
- 1
- SFH
- ≤
- 0.4
- ,
- (
- 2
- )
- wherein SFR1 is the first stab flank radius, SFH is the stab flank height, and LFH is the load flank height.
Dependencies are inferred from the claim text.