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US 8,327,931 B2Granted
Multi-component disappearing tripping ball and method for making the same
AssigneeBaker Hughes Incorporated
InventorsGaurav Agrawal, Zhiyue Xu
Life of this patent
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Abstract
A tripping ball including two or more dissolution resistant parts of a ball and an adherent dissolvable material binding the two or more parts of the ball together. A method for making a tripping ball is also included.
Claims34
A tripping ball comprising:
- two or more dissolution resistant parts of a ball;
- and
- an adherent dissolvable material binding the two or more parts of the ball together, the adherent material operatively arranged to dissolve for enabling the two or more dissolution resistant parts of the ball to separate from each other.
Dependencies are inferred from the claim text.