Well treatment method and apparatus
AssigneeWADA Ventures
InventorsRobert M. Williams, Bob Davis
Life of this patent
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Abstract
A method of, and apparatus for, treating a well using a tool string is disclosed. The method includes the steps of supplying a predetermined amount of treatment fluid to the well; pumping fluid from the well and holding the fluid in the tool string; and releasing the treatment fluid from the tool string into the well. In a preferred embodiment, the method includes repeating the pumping and releasing steps until the well is adequately treated.
Claims21
A method of treating a well using a tool string including a pump, comprising the steps of:
- supplying a predetermined amount of treatment fluid to the well;
- pumping fluid from the well and holding the fluid in the tool string;
- and
- releasing the treatment fluid from the tool string into the well.
A method of treating a well using a tool string including a pump and a dump valve, comprising the steps of:
- supplying the tool with a predetermined amount of treatment fluid;
- opening the dump valve to release the treatment fluid from the tool string back into the well bore;
- and
- reciprocating the tool string in order to pump the treatment fluid from the well bore into the tool string.
An apparatus for storing fluid from a well bore and returning the fluid to the well bore, comprising:
- a tubing string;
- a reservoir for storing treatment fluid within the string;
- openings in said tubing string at a lower portion of the reservoir;
- and
- means for selectively opening and closing said openings to release treatment fluid from said reservoir into the well bore.
Dependencies are inferred from the claim text.