Method of abandoning a well
OwnerPhilip Headinventor
Life of this patent
Estimating the term…
Abstract
A method of abandoning a well, said well comprising at least two concentric conduits (28,30) defining a main bore and at least one annular chamber (40) there between, comprising the steps of providing a perforation in one or more of the conduits, pumping out the fluiti from the annular chamber and/or main bore to create a fluiti-free void, inserting sealing material in the annular chamber and/or main bore to seal it/them. There is also provided an apparatus for abandoning a well having at least two concentric conduits defining at least one annular chamber there between, the apparatus including a pump (50) and a perforation forming device (42).
Claims15
A method of abandoning a well, said well comprising at least two concentric conduits defining a main bore and at least one annular chamber there between, comprising the steps of:
- providing a perforation in one or more of the conduits,
- pumping out the fluid from the annular chamber and/or main bore to create a fluid-free void,
- inserting sealing material in the annular chamber and/or main bore to seal it/them.
An apparatus for abandoning a well having at least two concentric conduits defining at least one annular chamber there between, the apparatus including a pump and a perforation forming device.
(canceled)
Dependencies are inferred from the claim text.