Downhole Tool Connector With Integrated Torque Shoulder
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Solution Overview
Problem
Downhole tools face design restrictions due to torque shoulders that increase connector diameter, limiting annular clearance and flow-by area, and existing connectors compromise the ability to connect and disconnect components efficiently.
Innovation Solution
A downhole tool with a male threaded portion and integrated torque shoulder that forms a service connector, allowing connection without additional load-bearing shoulders, adhering to API standards, and enabling flexible component design and robust assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If torque shoulders are located towards the outside of the components and extend radially out from the connector threads, then load transfer capability is improved, but connector diameter increases which restricts annular clearance and flow-by area
Solution Approach 1:
The torque shoulder is repositioned from a radial extension (outside the component) to an internal location within the connector body. This dimensional relocation allows the torque shoulder to maintain its load transfer function while reducing the external diameter, thereby increasing annular clearance and flow-by area without compromising strength
2Strength
If traditional service connectors with separate torque shoulders are used, then load transfer is achieved, but assembly and disassembly efficiency is reduced due to complex connection requirements
Solution Approach 1:
The torque shoulder is integrated directly into the connector body as a unified component rather than being a separate element. This merging of the torque shoulder with the connector allows for simpler assembly procedures, improved productivity, while maintaining the necessary load transfer capability through the integrated structure
3Strength
If the outer diameter of connectors is increased to accommodate torque shoulders, then load transfer capability is improved, but tool component design flexibility is restricted
Solution Approach 1:
By relocating the torque shoulder from an external radial position to an internal position within the connector, the external diameter is reduced. This dimensional change restores design flexibility to tool components, allowing them to fit within smaller annular clearances and flow-by areas while the internal torque shoulder maintains the required load transfer capability
Data Source
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AI summary
A downhole tool, comprising: a mandrel having first and second opposing ends and an outer mounting surface, the first end comprising a male threaded portion; a tool component mountable on the mounting surface by sliding said tool component onto the mounting surface from the first end of the mandrel; and a load sleeve defining a torque shoulder, wherein the load sleeve is mountable on the mandrel and securable adjacent the male threaded portion of the first end of the mandrel such that the torque shoulder and the male threaded portion define a pin connector to facilitate connection with a box connector of a separate component.