Downhole sealing tools and method of use
AssigneeHalliburton Energy Services, Inc.
InventorsPaul D. Ringgenberg, Gregory W. Vargus, Lee Wayne Stepp, Donald R. Smith, Ronald L. Hinkie, Don S. Folds
Life of this patent
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Abstract
A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The downhole tool includes upper and lower casing engaging members and an intervening sealing member. In one aspect the intervening sealing member may be a deformable material. In another aspect, the intervening sealing member may be a flowable material cured in the well bore.
Claims20
A downhole tool device for insertion into a wellbore, the device comprising:
- a mandrel;
- a sealing member disposed about the mandrel;
- a first gripping member coupled to the mandrel;
- and
- a second gripping member coupled to the mandrel;
- wherein the sealing member is positioned between the first gripping member and the second gripping member, and the first and second gripping members are adapted to move toward each other thereby:
- urging the first and second gripping members into engagement with the wellbore to inhibit movement of the device within the wellbore;
- and
- deforming the sealing member into sealing engagement with the wellbore.
A method of sealing a wellbore, comprising the steps of:
- providing a sealing assembly comprising:
- a mandrel;
- an upper gripping member;
- a lower gripping member;
- a sealing member disposed between the upper and lower gripping members;
- and
- a ratchet assembly moveable along the mandrel;
- positioning the sealing assembly in the wellbore;
- urging the upper and lower gripping members toward one another thereby compressing the sealing member to sealingly engage the wellbore, wherein the sealing member acts on at least one of the upper and lower gripping members to urge gripping engagement with the wellbore thereby establishing a set configuration;
- and
- operating the ratchet assembly to maintain the sealing assembly in the set configuration.
A downhole tool apparatus for use in a wellbore, the apparatus comprising:
- a first form having an outer diameter corresponding to an inner diameter of the wellbore, wherein the first form is configured for engagement with a first portion of the wellbore;
- a second form having an outer diameter corresponding to the inner diameter of the wellbore, wherein the second form is configured for engagement with a second portion of the wellbore;
- and
- a sealing material disposed between the first form and the second form, wherein the sealing material is adapted to sealingly and grippingly engage the wellbore.
A method of sealing a wellbore having an internal diameter, comprising the steps of:
- positioning a first form in the wellbore with an outer portion of the first form having a dimension approximating the internal diameter of the wellbore;
- positioning a sealing material adjacent the first form and into contact with the wellbore to seal the wellbore.
Dependencies are inferred from the claim text.