IP Library Granted Patent US 8,814,473
Granted Patent B2
US 8,814,473 · App. 13/805,706 · Granted Aug 26, 2014

Pipe transport system with hydrophobic wall

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Quick Facts
Patent No.
US 8,814,473
App. No.
13/805,706
Granted
Aug 26, 2014
Kind
B2
Abstract

A pipe system comprising a pipe comprising an exterior of the system, the pipe comprising an inner pipe wall; a hydrophobic layer interior to the inner pipe wall; and a liquid interior to the hydrophobic layer and interior to the inner pipe wall, the liquid comprising water and one or more hydrocarbons.

Claims (24)

1. A pipe system comprising:

a pipe comprising an exterior of the system, the pipe comprising an inner pipe wall;

a hydrophobic layer interior to the inner pipe wall, wherein the hydrophobic layer comprises a kinetic hydrate inhibitor; and

a fluid-solids stream interior to the hydrophobic layer and interior to the inner pipe wall, the fluid-solids stream comprising water, one or more hydrocarbons, and one or more other production stream components.

2. The pipe system of claim 1 , wherein the pipe is installed in a subsea environment.

3. The pipe system of claim 1 , wherein the one or more hydrocarbons comprise crude oil.

4. The pipe system of claim 1 , wherein the pipe is installed in an environment having an ambient temperature less than about 70° F.

5. The pipe system of claim 1 , wherein the pipe is installed in an environment having an ambient temperature less than about 60° F.

6. The pipe system of claim 1 , wherein the hydrophobic layer comprises a self-assembled monolayer comprising molecules exposing hydrophobic tails.

7. The pipe system of claim 1 , wherein the hydrophobic layer comprises a self-assembled monolayer comprising molecules, the molecules comprising a functional group on a tail end selected from the group consisting of hydrocarbons, alkanes, alkenes, alkynes, cycloalkanes, cycloalkenes, cycloalkynes, aromatic hydrocarbons, aryls, C 8 through C 18 -thiols, amines, and phosphates.

8. A method of transporting a fluid comprising:

providing a pipe, the pipe comprising an inner pipe wall;

installing a hydrophobic layer interior to the inner pipe wall, wherein the hydrophobic layer comprises a kinetic hydrate inhibitor; and

flowing a fluid-solids stream through the pipe, the fluid interior to the hydrophobic layer and interior to the inner pipe wall, the fluid-solids stream comprising water, one or more hydrocarbons, and one or more other production stream components.

9. The method of claim 8 , wherein the transporting stream is one or more subsea well stream(s).

10. The method of claim 8 , further comprising installing the pipe in a subsea environment having an ambient temperature lesson about 55° F.

11. The method of claim 8 , further comprising connecting one end of the pipe to a structure floating on a body of water.

12. The method of claim 11 , wherein the floating structure is selected from the group consisting of a semi submersible, a spar, an FPSO, and a TLP.

13. The method of claim 8 , wherein the liquid comprises crude oil.

14. A pipe system comprising:

a pipe comprising an inner pipe wall;

a hydrophobic layer interior to the inner pipe wall, wherein the hydrophobic layer comprises a self-assembled monolayer; and

a fluid-solids stream interior to the hydrophobic layer and interior to the inner pipe wall, the fluid-solids stream comprising water, one or more hydrocarbons, and one or more other production stream components.

15. The pipe system of claim 14 , wherein the self-assembled monolayer comprises 14-phenyl-1-tetradecanethiol.

Assignments (2)
CHANGE OF NAME Recorded Mar 7, 2022
From: SHELL OIL COMPANY
To: SHELL USA, INC.
Reel/Frame 059694/0819 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2012
From: HATTON, GREGORY JOHN; MEHTA, AJAY PRAFUL; PETERS, DAVID JOSEPH
To: SHELL OIL COMPANY
Reel/Frame 029507/0664 →