VALVE ASSEMBLY FOR A CEMENTING OPERATION
A valve assembly for use in a wellbore includes a tubular body; a valve disposed in the tubular body and configured to control fluid communication through the tubular body; and a compound for coupling the valve to the tubular body. The upper end of the compound is configured to receive a plug, and the upper end is spaced from an inner surface of the tubular body.
1 . A valve assembly for use in a wellbore, comprising:
a tubular body;
a valve disposed in the tubular body and configured to control fluid communication through the tubular body; and
a compound for coupling the valve to the tubular body; wherein an upper end of the compound is configured to receive a plug and wherein the upper end is spaced from an inner surface of the tubular body.
2 . The assembly of claim 1 , wherein the compound includes a tapered outer portion extending outwardly from the upper end toward the inner surface the tubular body.
3 . The assembly of claim 2 , wherein an angle between the inner surface and the tapered outer portion is from 5° to 60°.
4 . The assembly of claim 1 , further comprising a landing plate disposed on the upper end.
5 . The assembly of claim 1 , wherein the tubular body includes an internally profiled portion.
6 . The assembly of claim 5 , wherein the internally profiled portion includes:
a first radiused portion culminating in a first minimum radius toward an exterior of the tubular body; and
a second radiused portion culminating in a second minimum radius toward an interior of the tubular body.
7 . The assembly of claim 5 , wherein the internally profiled portion includes a plurality of angled wickers.
8 . The apparatus of claim 5 , wherein the internally profiled portion is undulated.
9 . The assembly of claim 5 , wherein the first minimum radius is larger than the second minimum radius.
10 . The assembly of claim 5 , wherein an outer surface of the compound tapers outwardly from the upper end toward the inner surface of the tubular body.
11 . The assembly of claim 10 , wherein the compound includes a tapered outer portion extending outwardly from the upper end toward the inner surface the tubular body.
12 . The assembly of claim 11 , wherein the tapered outer portion intersects the internal profiled portion of the tubular body.
13 . The assembly of claim 1 , wherein the valve is a one-way valve.
14 . The assembly of claim 1 , wherein the upper end extends into a connection of the tubular body.
15 . A downhole tool assembly, comprising:
a plug having a landing surface; and
a valve assembly, having:
a tubular body;
a valve disposed in the tubular body and configured to control fluid communication through the tubular body; and
a compound for coupling the valve to the tubular body; wherein an upper end of the compound is configured to receive the landing surface of the plug and wherein a ratio of an outer diameter of the upper end to an outer diameter of the landing surface is from 0.8 to 1.2.
16 . The assembly of claim 15 , wherein the compound includes a tapered outer portion extending outwardly from the upper end toward an inner surface the tubular body.
17 . The assembly of claim 16 , wherein an angle between the inner surface and the tapered outer portion is from 5° to 60°.
18 . The assembly of claim 17 , further comprising a landing plate disposed on the upper end for receiving the landing surface.
19 . The assembly of claim 15 , wherein tubular body includes an internally profiled portion.
20 . The assembly of claim 15 , wherein the valve assembly includes two valves.