US 10,309,564 B1Granted

Extendable spool

AssigneeOil States Energy Services, L.L.C.

InventorsBob McGuire, Danny L. Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann

Life of this patent

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Abstract

An extendable spool is disclosed. The length of the extendable spool is able to continuously varied. The extendable spool accounts for length variances in flow lines by extending the flow line rather than redirecting the flow. Because the flow direction does not make any turns, erosion is minimized on both the extendable spool and downstream parts. The extendable spool is readily scalable from small diameters to large diameters. Because of this, it requires fewer lines and therefore less setup time to account for length differences between large diameter lines.

Claims10

Dependent claims

An extendable tubular spool comprising:

a threaded tube comprising a smooth inner surface and a threaded outer surface with threads having a first orientation;
an inner tube, a portion of the exterior surface of the inner tube slidably engageable within the smooth inner surface the threaded tube;
a tensile tube engaged with the inner tube, the tensile tube slidably engageable with the threaded outer surface of the threaded tube;
an inner wing comprising inner threads having the first orientation and outer threads having a second orientation, the inner wing configured to threadably engage with the threaded outer surface of the threaded tube;
and
an outer wing comprising:
a threaded inner surface with threads having the second orientation and configured to threadably engage with the outer threads of the inner wing;
and
a radially extending mating shoulder configured to engage with a corresponding shoulder on the outer surface of the tensile tube.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/184,510Filed 8 Nov 2018
Granted: 4 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16L 27/0804
Allowing adjustment or movement only about the axis of one pipe: the fluid passing axially from one joint element to another
B65H 75/241
Adjustable in configuration, e.g. expansible: axially adjustable reels or bobbins
E21B 17/07
Between rod or the like and bit or between rod and rod or the like: telescoping joints for varying drill string lengths; Shock absorbers
F16L 27/1274
With means for locking the longitudinal adjustment or movement in the final mounted position: by means of a swivel nut

Family

No related US applications are recorded in the indexed filing history.

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