Lifting Plug Grease Collection Groove for Reliable Threading
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Solution Overview
Problem
Excess grease applied to the threaded portions of tubular members during drilling operations can lead to connection failures due to the operator's lack of awareness of the grease quantity applied.
Innovation Solution
A lifting plug with a grease collection groove and apertures is designed to collect and evacuate excess grease from the threaded portion of tubular members, ensuring a reliable connection by minimizing grease interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If grease is applied to the threaded portion of a tubular member, then the threading operation is facilitated, but excess grease can lead to connection failure
Solution Approach 1:
The lifting plug serves as an intermediary device between the grease application process and the final connection. It includes a grease collection groove that intercepts excess grease during the threading operation, allowing the threading to proceed smoothly while preventing harmful amounts of grease from reaching the connection interface
Solution Approach 2:
The invention extracts the harmful element (excess grease) from the system by providing a dedicated collection groove in the lifting plug. This groove captures and removes excess grease during the threading operation, separating the beneficial lubrication function from the harmful excess grease accumulation
2Ease of operation
If the operator applies grease to the threaded portion, then the threading process is improved, but the operator has little awareness of the quantity of grease being applied
Solution Approach 1:
The lifting plug acts as an intermediary that provides visual feedback about grease quantity. The grease collection groove becomes visibly filled with excess grease during application, giving the operator immediate information about how much grease has been applied without requiring complex measurement tools
3Ease of operation
If a lifting plug is threadedly connected with a tubular member, then a lifting surface is provided, but the lifting plug itself can accumulate excess grease
Solution Approach 1:
The lifting plug design extracts excess grease from the system through the collection groove. By positioning the groove on the lifting plug itself, the design ensures that grease is captured at the source during threading operations, preventing accumulation that would otherwise occur on the lifting plug surfaces
Solution Approach 2:
The lifting plug is segmented into functional zones: the lifting surface area and the grease collection groove area. This segmentation allows the lifting plug to simultaneously provide lifting capability while dedicating a specific portion (the groove) to grease collection, preventing grease from contaminating the lifting surfaces
Data Source
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AI summary
The invention relates to a lifting plug for connection with a tubular member, the lifting plug comprising a body comprising an externally threaded portion; a flange at a first end of the body for engagement with a lifting means; and a grease collection groove interrupting at least a part of the externally threaded portion.