Drill Collar Bore for Sample Bottle Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current downhole evaluation and identification tools face challenges in assembly and disassembly, resilience, and maintaining connectivity in drilling environments, particularly with multiple tools spread over multiple tubular sections, which complicates the use of advanced MWD and LWD systems.
Innovation Solution
The implementation of a sample bottle collar section with interconnect assemblies and end-clamps, along with intermediate clamps and spacers, to securely hold and reduce vibration of sample bottle assemblies within drill collar pockets, enhancing tool connectivity and resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tools are placed in multiple drill collars to increase functionality, then the evaluation capabilities are improved, but the assembly and disassembly complexity increases
Solution Approach 1:
The system is divided into modular drill collar sections, each containing specific tools (formation tester, fluid ID device, hydraulic devices). These segmented modules can be independently assembled and disassembled, reducing overall assembly complexity while maintaining diverse evaluation capabilities.
Solution Approach 2:
The drill collar sections are designed with universal interfaces and standardized connection mechanisms that allow different tool modules to be interchangeably mounted on the same drill collar. This multi-functional design enables a single drill collar to accommodate various evaluation tools, simplifying the overall system architecture.
2Adaptability or versatility
If multiple tools are placed in multiple drill collars to increase functionality, then the evaluation capabilities are improved, but the ease of operation deteriorates
Solution Approach 1:
Tools and components are pre-assembled into complete drill collar sections at the surface before deployment. This preliminary assembly simplifies downhole operations, as the entire functional module can be installed as a single unit rather than assembling individual components in the complex downhole environment.
Solution Approach 2:
Sample bottles are inserted into recesses within the drill collar body, and tools are nested within the drill collar sections. This nested arrangement allows compact packaging that simplifies handling and installation operations while maintaining access to all functional elements.
3Device complexity
If sample bottles are held in pocket configurations, then the structural simplicity is improved, but the vibration resistance deteriorates
Solution Approach 1:
The sample bottle holder incorporates elastomeric material as a damping element between the metal drill collar body and the sample bottle. This composite construction combines the structural strength of metal with the vibration-absorbing properties of elastomer, maintaining structural simplicity while significantly improving vibration resistance and preventing fluid mixing.
Data Source
AI summary
A sample bottle assembly is installed in a bore drilled into a drill collar section, wherein the bore may be drilled into a side wall of a pocket in the drill collar. The sample bottle assembly may be passed through the pocket and inserted into the bore. Drill collar material between the bore and the outer surface of the drill collar retains the sample bottle assembly in a radially inward direction, and a retention member in the pocket may retain the sample bottle assembly in an axial direction.