Granted Patent B2

US 12,631,072 · App. 18/808,617 · Granted May 19, 2026

Inventor: Billy G. Becker (Ventura, CA)

Assignee: DUCON—BECKER SERVICE TECHNOLOGY, LLC

E21B17/04F16L9/18F16L39/005

Abstract

Claims (25)

1 . A method of performing artificial lift of fluid produced from an underground formation in a wellbore, the method comprising:

providing an outer pipe;

providing an inner pipe having a bore;

placing the inner pipe in the bore of the outer pipe, such that an annulus is formed between an inner surface of the outer pipe and an outer surface of the inner pipe;

forming a joint pipe element by connecting the inner pipe to the outer pipe with a connecting mechanism so that a rotational torque can be transferred from the outer pipe to the inner pipe;

connecting a plurality of joint pipe elements to form a tubing system;

lowering the tubing system into the wellbore; and

pumping a pressurized gas through the tubing system to lift the fluid from the underground formation to the surface.

2 . The method of claim 1 , wherein a first end of the outer pipe is upset forged to have a wall thickness larger than a remainder of the wall of the outer pipe, and a corresponding first end of the inner pipe is not upset forged.

3 . The method of claim 1 , further comprising forming first threads at a first end of the outer pipe and first threads at a first end of the inner pipe so that the first threads are synchronized.

4 . The method of claim 3 , wherein the first threads at the first end of the outer pipe are formed in an upset forged region.

5 . The method of claim 1 , further comprising attaching a lug to one of a first end of the outer pipe and a first end of the inner pipe, wherein the lug is part of the connecting mechanism.

6 . The method of claim 5 , further comprising inserting the inner pipe into the outer pipe so that the lug slides into a corresponding groove formed into the another one of the first end of the outer pipe and the first end of the inner pipe.

7 . The method of claim 6 , further comprising welding the lug to the another one of the first end of the outer pipe and the first end of the inner pipe.

8 . The method of claim 7 , further comprising:

inserting another lug between a second end of the outer pipe and a second end of the inner pipe; and

attaching the another lug to the inner and outer pipes.

9 . The method of claim 8 , further comprising trimming the inner pipe to a desired length.

10 . The method of claim 9 , further comprising forming threads at the second end of the outer pipe and at the second end of the inner pipe so that the threads are synchronized.

11 . The method of claim 1 , wherein a first end of the outer pipe is shaped as a tubular pin, a first end of inner pipe is shaped as a tubular pin, a second end of the outer pipe is shaped as a tubular pin, and a second end of the inner pipe is shaped as a tubular pin.

12 . The method of claim 1 , wherein the outer pipe is concentric to the inner pipe.

13 . The method of claim 1 , wherein the connecting mechanism further comprises a bridge attaching the inner pipe to the outer pipe.

14 . The method of claim 13 , wherein the bridge comprises holes.

15 . The method of claim 1 , in which the pressurized gas is pumped through the bore of the inner pipe, such that the fluid flows to the surface through the annulus.

16 . The method of claim 1 , in which the pressurized gas is pumped through the annulus, such that the fluid flows to the surface through the bore of the inner pipe.

Assignments (1)

Continuity (3)

References Cited (80)