Halliburton Energy Services, Inc.

Perry Wayne Courville

Mark D Kalman

Loyd E East, Jr

Richard A Altman

Robert P Clayton

Robert Lee Pipkin

Michael L Connell

Earl Don Webb

James C Tucker

Iosif Joseph Hriscu

A swellable packer construction for continuous or segmented tubing. A method of constructing a swellable packer on a continuous tubular string includes the steps of: attaching a swellable seal material to the tubular string to thereby form the packer; and then wrapping the tubular string with the packer on a spool. A swellable packer includes a tubular body portion for incorporation into a tubular string, and a seal material wrapped about the body portion, the seal material being swellable in response to contact with a fluid. A method of constructing a swellable packer for a tubular string includes the steps of: wrapping a seal material about a tubular body portion to thereby form the packer; and then swelling the seal material in response to contact with a fluid. A continuous tubular string includes a seal material attached to a body portion of the tubular string to thereby form a swellable packer; and the packer wrapped with the tubular string on a spool.

Swellable packer construction for continuous or segmented tubing

Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected productive or previously producing intervals in multiple interval well bores. One example of a method for treating a multiple interval well bore includes the steps of: introducing an isolation assembly to a well bore, the isolation assembly comprising a liner, one or more sleeves and a plurality of swellable packers, wherein the sleeves and swellable packers are disposed about the liner; deploying a shifting tool inside the liner, where the sleeves are configured so as to provide open, closed and open to screen positions when actuated by the shifting tool. An open position allows for treatment of the well bore while an open to screen position allows for receiving fluid from the well bore. A closed position re-establishes zonal isolation.

Methods and devices for treating multiple-interval well bores

Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected productive or previously producing intervals in multiple interval well bores. One example of a method for treating a multiple interval well bore includes the steps of: providing an isolation assembly comprising a liner and a plurality of swellable packers wherein the plurality of swellable packers are disposed around the liner at selected spacings; introducing the isolation assembly into the well bore; allowing at least one of the plurality of swellable packers to swell so as to provide zonal isolation of at least one of a plurality of selected intervals; establishing fluidic connectivity to the at least one of a plurality of selected intervals; and treating the at least one of a plurality of selected intervals.

Apparatuses and methods for generating fluid pressure pulses are disclosed. An example apparatus may include a chamber that can collect fluid and an upstream ported disc coupled to a downstream end of the chamber. The upstream ported disc may rotate about a central axis. The upstream ported disc includes an upstream eccentric port that rotates about the central axis as the upstream ported disc rotates. The example apparatus may include a downstream ported disc coupled to a downstream end of the upstream ported disc such that the downstream ported disc remains substantially rotationally fixed relative to the upstream ported disc. The downstream ported disc includes a downstream eccentric port that may align with the upstream eccentric port to form a passageway for fluid to exit from the chamber to outside of the apparatus, at some time in a rotation cycle of the upstream ported disc.

Method and apparatus for generating fluid pressure pulses

A method for lining tubular includes positioning an expandable liner in a wellbore at a depth of one or more perforations using a downhole depth locator tool. The expandable liner is expanded in the wellbore to line the one or more perforations.

Growing community of inventors

Houston, TX, United States of America

Perry Wayne Courville