US 4,051,895 AGranted

Positioning tool

AssigneeProduction Specialties, Inc.

InventorHugh D. Embree

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Abstract

A positioning tool for use in placing a valve or removing a valve selectively from a mandrel in a tubing string includes an elongated cylindrical body member with an elongated plunger telescopically and nonrotatably arranged therein. Spring means abuts spaced shoulder means on the body member and elongated plunger to tend to urge the plunger and body member into abutting relationship adjacent their upper ends. A guide key is pivotally mounted on the body member by a shear pin and projects outwardly of a slot in the body member so that it may be engaged with a shoulder of an orientation sleeve mounted in the tubing string to align the positioning tool relative to a desired mandrel for placing a valve therein or removing a valve therefrom. A shifting tool is pivotally supported by the plunger and adapted to support a valve to be positioned in the mandrel and cooperating means on the plunger and shifting tool retain the plunger and shifting tool axially aligned in the main bore but is operable on movement of the plunger relative to the body member for shifting the shifting tool means into the mandrel for positioning the valve therein. After the valve has been positioned in the mandrel the positioning tool may be realigned axially in the tubing string to enable it to be more readily withdrawn from the tubing.

Claims5

Dependent claims

A well valve handling apparatus for use in placing a valve in or removing a valve from a well tubing having a plurality of tubing mandrels each having a main bore therethrough and a side pocket offset from the main bore and including an orientation sleeve mounted in the main bore having a longitudinal orientation slot and a shoulder therein comprising:

a. an elongated cylindrical body member;
b. an elongated plunger telescopically and nonrotatably arranged in said body member;
c. spring means abutting spaced shoulder means on said body member and elongated plunger to tend to urge said elongated plunger and body member into abutting relation adjacent their upper ends;
d. a guide key pivotally mounted on said body member by a shear pin;
e. said body member having a slot therein through which said guide key means projects outwardly from said body member;
f. spring means yieldably urging said guide key means outwardly of said body member for engagement in the longitudinal orientation slot of the desired mandrel while allowing said guide key means to downwardly bypass sleeves above the desired location;
g. shifting tool means pivotally supported by said plunger and adapted to support a valve to be positioned in the side pocket;
and
h. cooperating means on said body member and shifting tool means to retain said plunger and shifting tool means axially aligned in the main bore but operable on movement of said plunger relative to said body member for shifting said shifting tool means into the side pocket.

6 more elements

Dependencies are inferred from the claim text.