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US-9513397-B2 · Dec 6, 2016 · US
Modular rotary steerable actuators, steering tools, and rotary steerable drilling systems with modular actuators
US9016401B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9016401-B2 |
| Application number | US-201214007192-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2012 |
| Priority date | Jun 12, 2012 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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Modular actuators, steering tools, and rotary steerable drilling systems are presented herein. A modular actuator is disclosed for use in directing a drill string, which includes a housing proximate a drive shaft. The modular actuator includes a cartridge that is configured to couple to the outer periphery of the housing. A fluid reservoir is contained within the cartridge. A hydraulically actuated actuator piston, which is slidably disposed at least partially inside the cartridge, is movable between activated and deactivated positions. A hydraulic control system is also contained within the cartridge, fluidly coupling the fluid reservoir to the actuator piston. The hydraulic control system is configured to regulate movement of the actuator piston between the activated and deactivated positions such that the actuator piston selectively presses against and moves the drive shaft and thereby changes the direction of the drill string.
First claim
Opening claim text (preview).
What is claimed is: 1. A modular actuator for use in directing a drill string, the drill string having a housing and a drive shaft extending through the housing, the modular actuator comprising: a cartridge configured to couple to the outer periphery of the housing adjacent the drive shaft; a fluid reservoir contained within the cartridge; an actuator piston slidably disposed at least partially inside the cartridge, the actuator piston being movable between first and second po…
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- What does patent US9016401B2 cover?
- Modular actuators, steering tools, and rotary steerable drilling systems are presented herein. A modular actuator is disclosed for use in directing a drill string, which includes a housing proximate a drive shaft. The modular actuator includes a cartridge that is configured to couple to the outer periphery of the housing. A fluid reservoir is contained within the cartridge. A hydraulically actu…
- Who is the assignee on this patent?
- Savage John Keith, Kirkhope Kennedy John, Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B47/02. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).