Method of well treatment
AssigneePetrosakh U.S.A.
InventorValentin Grebennikov
Life of this patent
Estimating the term…
Abstract
A method of well treatment designed to enhance recovery of resources from the well. A solution with an alkaline pH greater than 8 is introduced into the well and allowed to react in the well for at least a minimum period of time. A neutral solution with a pH near 7 is introduced into the well and allowed to remain in the well for at least a minimum period of time. Finally, a solution with an acidic pH of approximately 1 is introduced into the well and allowed to react in the well for at least a minimum period of time.
Claims26
A method of well treatment designed to enhance recovery of resources from said well, which method comprises:
- a. introducing a base solution with an alkaline (pH>8) pH value into said well and allowing said alkaline solution to react in said well;
- b. introducing a solution with a pH value close to neutral (pH.apprxeq.7) into said well and allowing said neutral solution to treat the well during a soak or shut-in time period;
- c. introducing a solution with an acidic (pH.apprxeq.1) pH value into said well and allowing said solution to react in said well;
- and
- d. introducing a solution with a pH value close to neutral (pH.apprxeq.7) into said well and allowing said neutral solution to treat the well during a soak or shut-in time period.
A method of well treatment designed to enhance recovery of resources from said well, which method comprises:
- a. introducing a solution with an acidic (pH.apprxeq.1) pH value into said well and allowing said solution to react in said well;
- b. introducing a solution with a pH close to neutral (pH.apprxeq.7) into said well and allowing said neutral solution to treat the well during a soak or shut-in time period;
- c. introducing a base solution with an alkaline (pH>8) value into said well and allowing said alkaline solution to react in said well;
- and
- d. introducing a solution with a pH value close to neutral (pH.apprxeq.7) into said well and allowing said neutral solution to treat the well during a soak or shut-in time period.
Dependencies are inferred from the claim text.