Patent Application
20220081981
Hydrocarbon recovery operations often include drilling of a wellbore into the earth's surface to reach a hydrocarbon reservoir. The wellbore is typically then lined with casing and may be perforated adjacent to the reservoir formation. Production tubing may then be lowered into the wellbore to assist with recovery operations.
Tubing hangers are often used at the wellsite to suspend production tubing within a wellbore. Tubing hangers often comprise multiple components that are coupled together to complete the tubing hanger assembly. Further, it is often desired to have ports through the tubing hanger to accommodate electrical lines. Tubing hangers currently require the use of large adapters in order to connect the tubing hanger to a production tree above the tubing hanger. What is needed is an improved tubing hanger providing simplicity of design and ease of connection to a production tree.
According to one aspect of the subject matter described in this disclosure, a tubing hanger is provided. The tubing hanger includes a cylindrical body having a bore defined therethrough. Also, a connection member is integrally formed with the cylindrical body. The connection member includes threads for mating with a rotating flange of a production tree.
According to another aspect of the subject matter described in this disclosure, a method for implementing a tubing hanger is provided. The method includes providing a cylindrical body having a bore defined therethrough. Moreover, the method includes integrally forming a connection member with the cylindrical body. The connection member includes threads for mating with a rotating flange of a production tree.
According to another aspect of the subject matter described in this disclosure, a tubing hanger is provided. The tubing hanger includes a cylindrical body having a bore defined therethrough. At least one port is arranged circumferentially along one portion of the cylindrical body such that the at least one port does not extend around the bore. A connection member is integrally formed with the cylindrical body. The connection member is directly mated to a rotating flange of a production tree.
Additional features and advantages of the present disclosure are described in, and will be apparent from, the detailed description of this disclosure.
The disclosure is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings in which like reference numerals are used to refer to similar elements. It is emphasized that various features may not be drawn to scale and the dimensions of various features may be arbitrarily increased or reduced for clarity of discussion.
The figures and descriptions provided herein may have been simplified to illustrate aspects that are relevant for a clear understanding of the herein described devices, systems, and methods, while eliminating, for the purpose of clarity, other aspects that may be found in typical similar devices, systems, and methods. Those of ordinary skill may recognize that other elements and/or operations may be desirable and/or necessary to implement the devices, systems, and methods described herein. But because such elements and operations are well known in the art, and because they do not facilitate a better understanding of the present disclosure, a discussion of such elements and operations may not be provided herein. However, the present disclosure is deemed to inherently include all such elements, variations, and modifications to the described aspects that would be known to those of ordinary skill in the art.
The present disclosure relates to an improved tubing hanger for use at a wellsite.
The tubing hanger may have one or more ports 108 defined therethrough. In a preferred embodiment, the tubing hanger 100 includes three ports 108 for accommodating a chemical treatment line, an electrical feed line and a bottom hole pressure gauge line, respectively.
Also as shown above, the ports 108 are substantially constant in diameter 210 through the cylindrical body 102, but are angled outward from cylindrically body 102 at a proximal end 212 of the cylindrical body 200. In other words, the centerline of the exits of the ports 108 is angled relative to the centerline of the bore 200. In this manner, the chemical treatment line, electrical feed line and bottom hole pressure gauge line may be angled away from the cylindrical body 200 and connection member. This arrangement facilitates connection of the tubing hanger 100 to the production tree.
In one embodiment, the ports 108 are defined through a portion of the cylindrical body 102 offset from the bore 200. The ports 108 may be arranged circumferentially along one portion of the cylindrical body 102 such that they do not extend around the bore 200. As shown in the above figures, the bore 200 may be offset from the center of the cylindrical body 102. Further, and is best seen in
Further, the ports 108, as shown in
While not shown, the tubing hanger 100 may also be used with a sealing flange that seals the outer diameter of the tubing hanger. In some embodiments, the sealing flange includes O-rings that provide the seal on the outer diameter of the tubing hanger. The sealing flange may be pressure fit onto the tubing hanger after the tubing hanger is landed on the tubing head.
The tubing hanger according to the present disclosure has certain advantages over prior art tubing hangers. As is appreciated in the art, tubing hangers are traditionally used with tubing adapters in order to provide a connection between the tubing hanger and the production tree. In the hydrocarbon recovery industry, the production tree or “Christmas” tree is typically an assembly of valves, casing spools, and fittings used to regulate the flow of pipes in an oil well, gas well, water injection well, water disposal well, gas injection well, condensate well and other types of wells. The tubing hanger of the present disclosure eliminates the need for a tubing adapter as the connection member is able to receive a rotating flange of the production tree directly onto the connection member, thus facilitating coupling of the production tree to the tubing hanger without the need for a tubing adapter.
Reference in the specification to “one implementation” or “an implementation” means that a particular feature, structure, or characteristic described in connection with the implementation is included in at least one implementation of the disclosure. The appearances of the phrase “in one implementation,” “in some implementations,” “in one instance,” “in some instances,” “in one case,” “in some cases,” “in one embodiment,” or “in some embodiments” in various places in the specification are not necessarily all referring to the same implementation or embodiment.
Finally, the above descriptions of the implementations of the present disclosure have been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the present disclosure to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the present disclosure be limited not by this detailed description, but rather by the claims of this application. As will be understood by those familiar with the art, the present disclosure may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the present disclosure is intended to be illustrative, but not limiting, of the scope of the present disclosure, which is set forth in the following claims.
This application claims priority to U.S. provisional application No. 63/079,768 filed on Sep. 17, 2020, the contents of which is included herein in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63079768 | Sep 2020 | US |
