Inspection method of gauge for a self-locking threading of a tubular connection used in the oil industry
AssigneesVallourec Mannesmann Oil & Gas France, Sumitomo Metal Industries, Ltd.
InventorsRegis Moreau, Jean-Luc Coulon, Jean-Guillaume Besse, Pierre-Yves Bakalemian, Pierre Martin
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Abstract
A method and a gauge for inspecting a self-locking threading provided close to one end of a tubular component used for exploration or operation of hydrocarbon wells, the threading including a lead with a constant width and thread root widths that increase in the direction of a distal surface of the tubular component. The gauge can be displaced in the self-locking threading to a locking position, the locking position then being marked and compared with a reference locking position.
Claims36
A gauge for inspecting a self-locking threading provided close to one end of a tubular component for exploration or operation of hydrocarbon wells, the threading including thread root widths that decrease to a minimum value from a distal surface of the end of the tubular component, the gauge comprising:
- a base carrying at least one first thread that can be displaced in the self-locking threading to a locking position,
- wherein the gauge is configured to inspect a threading of a male end, and
- wherein a height of the at least one first thread of the gauge is greater than a height of threads of the threading.
A gauge for inspecting a self-locking threading provided close to one end of a tubular component for exploration or operation of hydrocarbon wells, the threading including thread root widths that decrease to a minimum value from a distal surface of the end of the tubular component, the gauge comprising:
- a base carrying at least one first thread that can be displaced in the self-locking threading to a locking position,
- wherein the gauge is configured to inspect a threading of a female end, and
- wherein a height of the at least one first thread of the gauge is lower than a height of threads of the threading.
Dependencies are inferred from the claim text.