Processes and systems for injection of a liquid and gas mixture into a well
AssigneeLift IP Etc, LLC
InventorsTimothy J. Bridges, Stuart L. Scott, Paulo Waltrich, H. Lee Norris
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Abstract
Processes and systems for injecting a liquid and gas mixture into a well are disclosed. The processes and systems include injecting a mixture of a liquid and a gas into a well in order to: increase production of a production fluid in the well, decrease the bottom hole pressure, decrease the density of the production fluid, or a combination thereof.
Claims19
A method for injection of a liquid and a gas mixture into a well that is producing a production fluid at a first production rate, wherein the well comprises a borehole extending into the ground to a formation, the borehole having at least one production tubing extending through at least a portion of the borehole, the method comprising:
- measuring fluid properties at a surface level of the at least one production tubing and measuring fluid dynamics occurring within the at least one production tubing while the well is producing fluid at the first production rate;
- determining a first mixture of a liquid and gas to be injected into the well based upon the measurements;
- injecting the first mixture of a liquid and a gas into the borehole, communicating the first mixture to a portion of the at least one production tubing containing the production fluid, wherein the first mixture is injected at a first flow rate to cause the well to increase production of the production fluid to a second production rate that is greater than the first production rate;
- and
- adjusting gas and liquid mixture compositions and flowrates over time to facilitate downward bubble flow based on the measured fluid properties at the surface level of the at least one production tubing by repeating the measuring, determining, and injecting steps recited above sequentially in an iterative feedback process.
A method for injection of a liquid and gas mixture into a producing well, wherein the well comprises a borehole extending into the ground to a formation, the borehole having at least one production tubing extending through at least a portion of the borehole, the method comprising:
- measuring fluid properties at a surface level of the at least one production tubing and measuring fluid dynamics occurring within the at least one production tubing while the well is producing fluid at the first production rate;
- determining a first mixture of a liquid and gas to be injected into the well based upon the measurements;
- injecting the first mixture of a liquid and a gas into the borehole, communicating the first mixture to a portion of the at least one production tubing while the well is producing a first volume of production fluid, the first volume of production fluid having a first density, wherein the first mixture is injected at a first flow rate thereby resulting in the formation of a second volume of production fluid, the second volume of production fluid having a second density that is less than the first density;
- and
- adjusting gas and liquid mixture compositions and flowrates over time to facilitate downward bubble flow based on the measured fluid properties at the surface level of the at least one production by repeating the measuring, determining, and injecting steps recited above sequentially in an iterative feedback process.
Dependencies are inferred from the claim text.