Efficient surface and downhole heating of injected carbon dioxide

Patent metadata

Field	Value
Publication number	US-2024410256-A1
Application number	US-202218698099-A
Country	US
Kind code	A1
Filing date	Oct 7, 2022
Priority date	Oct 8, 2021
Publication date	Dec 12, 2024
Grant date	—

Abstract

A process for injection of CO2 in high-temperature reservoirs, where preheating of the injected stream is necessary. The process comprises producing hot water from a distant well, using the produced hot water in a surface heat exchanger for heating CO2. Alternatively, the produced hot water may be used in a wellbore heat exchanger to heat the incoming CO2 as a counter-current heat exchanger. When the available CO2 is substantially cooler than the ambient, preheating via solar thermal is desirable prior to feeding to the heat exchanger.

First claim

What is claimed is:

1 . A method, comprising:
obtaining a quantity of carbon dioxide for processing; heating the carbon dioxide to a specified temperature; transferring the heated carbon dioxide to a transfer arrangement; and transferring the heated carbon dioxide to an underground reservoir through use of the transfer arrangement.

2 . The method according to claim 1 , wherein the transfer arrangement is at least one pump.

3 . The method according to claim 1 , wherein the heating the carbon dioxide includes a solar preheating of the carbon dioxide at a surface elevation.

4 . The method according to claim 3 , wherein the solar preheating is one of a solar radiation a solar photovoltaic electric heating.

5 . The method according to claim 1 , wherein an injection well is used to perform at least a portion of the heating of the carbon dioxide to the specified temperature.

6 . The method according to claim 5 , wherein the injection well has, at least in part, insulated tubing carrying a fluid.

7 . The method according to claim 6 , wherein the fluid is a brine.

8 . The method according to claim 5 , wherein the injection well and the tubing descend to a specified depth for heating a fluid from the injection well to heat the carbon dioxide.

9 . The method according to claim 8 , wherein the heating of the carbon dioxide and a production of the fluid from the injection well to heat the carbon dioxide are simultaneous.

10 . The method according to claim 1 , wherein surface mounted heat exchangers are used to at least perform a portion of the heating of the carbon dioxide.

11 . An arrangement, comprising:
a storage device for containing a quantity of carbon dioxide; a heating device configured to take at least a portion of the quantity of carbon dioxide and heat the carbon dioxide to a specified temperature; a control system configured to monitor a process of the heating of the carbon dioxide to the specified temperature; and an injection system to inject the heated carbon dioxide into a reservoir.

12 . The arrangement according to claim 11 , wherein the reservoir is an underground reservoir.

13 . The arrangement according to claim 11 , wherein the heating device at least includes a surface mounted heat exchanger.

14 . The arrangement according to claim 11 , wherein the heating device at least includes a solar arrangement.

15 . The arrangement according to claim 11 , further comprising:
an injection well to at least partially heat the carbon dioxide.

16 . The arrangement according to claim 15 , wherein the injection well carries a fluid used for heating the carbon dioxide.

17 . The arrangement according to claim 16 , further comprising a tubing to carry the fluid used for heating the carbon dioxide.

18 . The arrangement according to claim 17 , wherein the tubing is insulated.

Assignees

• Schlumberger Technology Corp

Inventors

• Ramakrishnan Terizhandur S
• Senel Ozgur

Classifications

• E21B36/006

  Combined heating and pumping means · CPC title

• Y02C20/40

  of CO2 · CPC title

• E21B36/00

  Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones · CPC title

• E21B36/04

  using electrical heaters · CPC title

• Y02E10/10

  Geothermal energy · CPC title