Rotary Bit Pushing Device for Precise Wellbore Steering
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Solution Overview
Problem
Challenging to direct a rotating drill bit to a stationary target location in a wellbore during drilling operations, as the drill bit's direction needs constant adjustment to maintain alignment with the target.
Innovation Solution
A rotary bit pushing device with deflection mechanisms and flow regulators that control the direction of the drill bit by manipulating drilling fluid flow, allowing the bit to be steered accurately through rotational positions and fluid pressure management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rotary bit pushing device is used to steer the drill bit, then the directional control of the drill bit is improved, but the device complexity increases due to multiple deflection devices and flow regulators
Solution Approach 1:
The pushing device is divided into multiple independent deflection devices (first deflection device, second deflection device) that can be independently controlled. Each deflection device has its own flow regulator, allowing separate control of drilling fluid flow to each deflection device. This segmentation enables precise directional control by independently adjusting the pushing force on different sides of the drill bit, while maintaining manageable system complexity through modular design.
2Ease of operation
If drilling fluid flow is used to control deflection devices, then the ease of operation is improved, but the loss of drilling fluid increases
Solution Approach 1:
The flow regulators are configured to open and close in a periodic sequence rather than remaining constantly open. The first flow regulator opens to direct drilling fluid to the first deflection device, then closes while the second flow regulator opens to direct fluid to the second deflection device. This periodic action provides easy operational control through automated sequencing while minimizing drilling fluid loss by ensuring fluid flows through only one path at a time rather than continuously through multiple open paths.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise steering of the drill bit to a target location by adjusting fluid flow and deflection devices, ensuring accurate wellbore directionality and efficient resource extraction.
Implementation Method 1
allows a first quantity of drilling fluid to move a first deflection device of a plurality of deflection devices of the rotary bit pushing device from a normal position to an extended position
Data Source
AI summary
A method, device, and system is described herein for pushing a rotary drill bit. Pushing the rotary drill bit can include receiving a target direction in a formation to push the rotary drill bit while drilling a wellbore in a formation. Pushing the rotary drill bit can also include opening, at a first rotational position of a rotary bit pushing device disposed proximate to the rotary drill bit within the wellbore, a first inlet port of a first flow regulator. Pushing the rotary drill bit can further include closing, after the first rotational position of the rotary bit pushing device, the first inlet port. Pushing the rotary drill bit can also include sending, to a second flow regulator of the rotary bit pushing device, a second quantity of drilling fluid.