US2025059856A1PendingUtilityA1

Techniques for providing a carbon dioxide liquid injection system

Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Aug 18, 2023Filed: Aug 16, 2024Published: Feb 20, 2025
Est. expiryAug 18, 2043(~17 yrs left)· nominal 20-yr term from priority
E21B 41/0064E21B 43/164E21B 36/00E21B 43/12E21B 47/06
40
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Claims

Abstract

A carbon dioxide injection manager may pump carbon dioxide into a wellbore with a carbon dioxide pump. A carbon dioxide injection manager may measure a carbon dioxide temperature of the carbon dioxide at the wellbore. A carbon dioxide injection manager may, based on the carbon dioxide temperature, increase a temperature of the carbon dioxide between the carbon dioxide pump and the wellbore.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for carbon dioxide injection, the method comprising:
 pumping carbon dioxide into a wellbore with a carbon dioxide pump;   measuring a carbon dioxide temperature of the carbon dioxide at the wellbore; and   based on the carbon dioxide temperature, increasing a temperature of the carbon dioxide between the carbon dioxide pump and the wellbore.   
     
     
         2 . The method of  claim 1 , wherein increasing the temperature of the carbon dioxide includes heating the carbon dioxide to at least a temperature threshold when the carbon dioxide temperature is less than the temperature threshold. 
     
     
         3 . The method of  claim 2 , wherein the temperature threshold is based on a thermal shock temperature of a formation of the wellbore. 
     
     
         4 . The method of  claim 2 , wherein the temperature threshold is based on an equipment operation temperature of equipment at the wellbore. 
     
     
         5 . The method of  claim 1 , wherein increasing the temperature of the carbon dioxide includes heating the carbon dioxide to less than a high temperature threshold to maintain the carbon dioxide in a supercritical phase. 
     
     
         6 . The method of  claim 1 , further comprising:
 measuring a carbon dioxide pressure at the wellbore; and   based on the carbon dioxide pressure, adjusting a flow rate of the carbon dioxide based on a flow rate threshold.   
     
     
         7 . The method of  claim 6 , wherein measuring the carbon dioxide pressure includes measuring the carbon dioxide pressure downhole in the wellbore. 
     
     
         8 . The method of  claim 6 , wherein the flow rate threshold is based on a formation through which the wellbore extends. 
     
     
         9 . The method of  claim 6 , wherein adjusting the flow rate includes adjusting the flow rate to maintain the carbon dioxide pressure within a threshold pressure range. 
     
     
         10 . The method of  claim 1 , wherein the carbon dioxide is pumped in a supercritical phase. 
     
     
         11 . A carbon dioxide injection system, comprising:
 a carbon dioxide pump configured to pump carbon dioxide into a wellbore;   a temperature sensor at the wellbore configured to measure a temperature of the carbon dioxide between the carbon dioxide pump and the wellbore; and   a heater between the carbon dioxide pump and the wellbore, wherein the heater is configured to maintain the carbon dioxide above a minimum temperature threshold.   
     
     
         12 . The carbon dioxide injection system of  claim 11 , wherein the carbon dioxide pump has a pumping rate of between 0.5 m 3 /hr and 5 m 3 /hr. 
     
     
         13 . The carbon dioxide injection system of  claim 11 , further comprising piping connecting the carbon dioxide pump to a wellhead at a wellbore. 
     
     
         14 . The carbon dioxide injection system of  claim 11 , wherein the carbon dioxide pump includes a plurality of carbon dioxide pumps in parallel. 
     
     
         15 . The carbon dioxide injection system of  claim 11 , wherein the carbon dioxide pump and the heater are mounted on a skid. 
     
     
         16 . A carbon dioxide injection system, comprising:
 a carbon dioxide pump;   a temperature sensor;   a heater; and   a processor and memory, the memory including instructions that, when executed, cause the processor to:
 pump carbon dioxide into a wellbore with the carbon dioxide pump; 
 measure, with the temperature sensor, a carbon dioxide temperature of the carbon dioxide at the wellbore; and 
 based on the carbon dioxide temperature, increase, with the heater, a temperature of the carbon dioxide between the carbon dioxide pump and the wellbore. 
   
     
     
         17 . The carbon dioxide injection system of  claim 16 , wherein increasing the temperature of the carbon dioxide includes heating the carbon dioxide to at least a temperature threshold when the carbon dioxide temperature is less than the temperature threshold. 
     
     
         18 . The carbon dioxide injection system of  claim 17 , wherein the temperature threshold is based on a thermal shock temperature of a formation of the wellbore. 
     
     
         19 . The carbon dioxide injection system of  claim 17 , wherein the temperature threshold is based on an equipment operation temperature of equipment at the wellbore. 
     
     
         20 . The carbon dioxide injection system of  claim 17 , wherein increasing the temperature of the carbon dioxide includes heating the carbon dioxide to less than a high temperature threshold to maintain the carbon dioxide in a supercritical phase.

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