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US 6,745,834 B2Granted
Complete trip system
AssigneeSchlumberger Technology Corporation
InventorsJabus T. Davis, Douglas W. Jordan, William F. Siersdorfer
Life of this patent
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Abstract
The present invention discloses apparatus and methods for perforating, completing, testing, and abandoning a wellbore in a single trip. One embodiment of the invention is a method that comprises perforating an interval within the wellbore, positioning a sand screen assembly adjacent the perforated interval, gravel packing the perforated interval, performing testing on the perforated interval, and then abandoning the well, all in a single trip in the wellbore.
Claims22
A method, comprising:
- perforating a zone within a well;
- positioning a sand screen assembly adjacent the perforated zone;
- gravel packing the perforated zone;
- performing well tests on the perforated zone;
- and
- abandoning the well,
- wherein the method is performed in a single trip into the well.
4 more elements
A method, comprising:
- inserting a tool assembly attached to a tubing string into a wellbore, the tool assembly comprising a perforating gun, a sand screen, a retrievable packer disposed below the sand screen, a production packer disposed above the sand screen, and an isolation valve;
- positioning the tool assembly such that the perforating gun is at a predetermined location within the wellbore;
- setting the retrievable packer;
- perforating a zone proximate the perforating gun to create a perforated zone;
- releasing the retrievable packer;
- positioning the tool assembly such that the sand screen is substantially adjacent the perforated zone;
- setting the retrievable packer;
- setting the production packer;
- performing a gravel pack operation adjacent the sand screen such that a gravel pack is deposited in an annulus portion between the sand screen and the perforated zone;
- testing the perforated zone;
- closing the isolation valve;
- releasing the tubing string item the tool assembly;
- and
- abandoning the wellbore while pulling the tubing string from the wellbore,
- wherein the method is performed in a single trip into the well.
12 more elements
Dependencies are inferred from the claim text.