Self-adjusting earth-boring tools and related systems and methods
First Claim
1. An earth-boring tool, comprising:
- a body;
an actuation device disposed at least partially within the body, the actuation device comprising;
a first fluid chamber having a first portion and a second portion;
a second fluid chamber having a first portion and a second portion;
a first reciprocating member configured to reciprocate back and forth within the first portion of the first fluid chamber and the first portion of the second fluid chamber;
a second reciprocating member configured to reciprocate back and forth within the second portion of the first fluid chamber and the second portion of the second fluid chamber;
a hydraulic fluid disposed within and at least substantially filling the first fluid chamber and the second fluid chamber; and
a connection member attached to the first reciprocating member and extending through the second reciprocating member and out of the second portion of the second fluid chamber; and
a drilling element removably coupled to the connection member of the actuation device.
3 Assignments
0 Petitions
Accused Products
Abstract
A self-adjusting earth-boring tool includes a body carrying cutting elements and an actuation device disposed at least partially within the body. The actuation device may include a first fluid chamber, a second fluid chamber, a first reciprocating member, and a second reciprocating member. The first and second reciprocating members may divide portions of the first fluid chamber from portions of the second fluid chamber. A connection member may be attached to both of the first and second reciprocating members and may have a drilling element removably coupled thereto. A first fluid flow path may extend from the second fluid chamber to the first fluid chamber. A second fluid flow path may extend from the first fluid chamber to the second fluid chamber.
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Citations
20 Claims
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1. An earth-boring tool, comprising:
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a body; an actuation device disposed at least partially within the body, the actuation device comprising; a first fluid chamber having a first portion and a second portion; a second fluid chamber having a first portion and a second portion; a first reciprocating member configured to reciprocate back and forth within the first portion of the first fluid chamber and the first portion of the second fluid chamber; a second reciprocating member configured to reciprocate back and forth within the second portion of the first fluid chamber and the second portion of the second fluid chamber; a hydraulic fluid disposed within and at least substantially filling the first fluid chamber and the second fluid chamber; and a connection member attached to the first reciprocating member and extending through the second reciprocating member and out of the second portion of the second fluid chamber; and a drilling element removably coupled to the connection member of the actuation device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An earth-boring tool, comprising:
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a body; an actuation device disposed at least partially within the body, the actuation device comprising; a first reciprocating member disposed within an upper portion of the actuation device and configured to reciprocate back and forth within the upper portion of the actuation device; a second reciprocating member disposed within a lower portion of the actuation device and configured to reciprocate back and forth within the lower portion of the actuation device; and a connection member attached to the first reciprocating member, extending through the second reciprocating member, and extending out of the actuation device; and a drilling element assembly removably coupled to a longitudinal end of the connection member extending out of the actuation device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An actuation device for a self-adjusting earth-boring tool, the actuation device comprising:
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a first fluid chamber having a first portion and a second portion; a second fluid chamber having a first portion and a second portion; a first reciprocating member sealingly dividing the first portion of the first fluid chamber from the first portion of the second fluid chamber; a second reciprocating member sealingly dividing the second portion of the second fluid chamber from the second portion of the first fluid chamber; a connection member attached to a back surface of the first reciprocating member facing the first portion of the second fluid chamber, the connection member further attached to and extending through the second reciprocating member and out of the second portion of the second fluid chamber; a pressure compensator in fluid communication with the second fluid chamber; and a drilling element attached to the connection member. - View Dependent Claims (19, 20)
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Specification