Core Barrel Head Assembly for Real-Time Core Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional core sample orientation methods require additional drill string elements and frequent withdrawal of the drill bit for surveying, leading to inefficiencies and increased operational risks.
Innovation Solution
A core barrel assembly with integrated electronic instruments that provide orientation data within the drill string, allowing for real-time core orientation without the need for additional equipment or frequent bit withdrawal, using sensors and wireless communication to transmit data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional orientation methods using additional drill string elements are used, then core sample orientation can be determined, but drilling efficiency decreases due to frequent bit withdrawal and equipment handling
Solution Approach 1:
The patent combines the core orientation determination function with the existing drill string by integrating electronic instruments (accelerometers, gyroscopes, magnetometers) directly into the drill string components. This eliminates the need for separate orientation tools and frequent bit withdrawal, allowing continuous drilling while collecting orientation data.
Solution Approach 2:
The patent replaces mechanical orientation methods (physical markers, orientation spears requiring bit withdrawal) with electronic sensing systems. Accelerometers, gyroscopes, and magnetometers provide electronic measurement of drill string orientation, eliminating mechanical interference and enabling continuous operation.
2Loss of information
If conventional orientation methods requiring frequent bit withdrawal are used, then core orientation data can be collected, but operational safety decreases due to increased exposure to hazards
Solution Approach 1:
The patent enables continuous drilling operation while simultaneously collecting orientation data through integrated electronic sensors. The drill string remains in the ground throughout the process, eliminating repeated exposure to hazards associated with bit withdrawal and re-entry, thereby maintaining operational safety while continuously acquiring orientation information.
3Measurement precision
If additional drill string elements are added for orientation surveying, then orientation measurement capability is improved, but device complexity increases
Solution Approach 1:
The patent makes existing drill string components multi-functional by integrating electronic orientation sensors into standard drill string elements. The same drill string that performs drilling also simultaneously performs orientation surveying, eliminating the need for additional specialized equipment and reducing overall system complexity.
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
Enhances drilling efficiency by reducing equipment handling and downtime, improving operational safety, and providing accurate core orientation data without separating the core barrel assembly from the drill string.
Implementation Method 1
the at least one electronic instrument is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted
Implementation Method 2
using sensors and wireless communication to transmit data
Data Source
AI summary
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.