Method for paraffin inhibiting
AssigneePlus5, Inc.
InventorsPaul Andrade, Roger Anton Sramek
Life of this patent
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Abstract
Disclosed is method of enhanced oil recovery for a crude oil production well. The method includes the steps of pyrolyzing rubber materials including the steps of heating the rubber materials to form pyro-vapors, condensing the pyro-vapors to form pyro-gas and pyro-oil where the pyro-oil includes an inhibitor solution including non-polar hydrocarbons and polar hydrocarbons. The inhibitor solution is injected as an injection stream into the crude oil production well to facilitate production of crude oil from the crude oil production well.
Claims22
A method of enhanced oil recovery for a crude oil production well comprising,
- pyrolyzing rubber materials including the steps of heating the rubber materials to form pyro-vapors, condensing the pyro-vapors to form pyro-gas and pyro-oil where the pyro-oil includes an inhibitor solution including non-polar hydrocarbons and polar hydrocarbons,
- injecting the inhibitor solution as an injection stream into the crude oil production well to facilitate production of crude oil from the crude oil production well.
A method of enhanced oil recovery for a crude oil production well where the well has a core extending into a well bore to a crude oil reservoir and where the well has production impeded by paraffin comprising,
- pyrolyzing scrap tires including the steps of heating the scrap tires to greater than 400° C. to form pyro-vapors, condensing the pyro-vapors to form pyro-gas and pyro-oil where the pyro-oil includes an inhibitor solution formed of non-polar hydrocarbons and polar hydrocarbons wherein the non-polar hydrocarbons have a non-polar range of at least 3% of the pyro-oil,
- injecting the inhibitor solution as an injection stream into the crude oil production well to solubilize the paraffin to increase production of crude oil from the production well.
A method of enhanced oil recovery of crude oil from a crude oil production well having an injector, piping, a core including an annulus, a pump and lift tubing where the core extends into a well bore to a crude oil reservoir for pumping crude oil having a viscosity increased by paraffin components comprising,
- pyrolyzing scrap tires including the steps of heating the scrap tires in a temperature range from 400° C. to 850° C. over a period from 3 hours to 5 hours to form pyro-vapors, condensing the pyro-vapors to form pyro-gas and pyro-oil where the pyro-oil includes an inhibitor solution formed of non-polar hydrocarbons and polar hydrocarbons,
- mixing the inhibitor solution with the crude oil of the production well in a percentage greater than 0.15% to form an injection stream for lowering the Cloud Point temperature of the crude oil of the production well,
- injecting the injection stream into a loop including the injector, the piping, the annulus, the pump and the lift tubing,
- providing a continuous flushing of the injection stream in the loop for solubilizing the paraffin to decrease the viscosity of the crude oil.
Dependencies are inferred from the claim text.