Rotary Table Adapter for Drilling Rig Threaded Connections

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Solution Overview

Problem

Conventional methods for changing threaded connections between tubular components in mineral extraction systems, such as mandrels and actuators, require disassembly at remote locations, leading to increased time and cost due to the need for uninstallation and reassembly at a machine shop.

Innovation Solution

A threaded connection breakout system utilizing a rotary table adapter and locking clamp that allows for the secure gripping and rotation of mandrels on a drilling rig floor, enabling the connection and disconnection of mandrels from actuators without the need for remote disassembly, using a rotary table to transmit torque and facilitate the makeup or breakage of threaded connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional methods are used to change threaded connections between tubular components, then the connections can be changed, but the process requires disassembly at remote locations and reassembly at a machine shop, leading to increased time and cost

Engineering Contradiction:
Improvethreaded connection change efficiencyVSAvoidtime for disassembly and reassembly
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent introduces an intermediary device (threaded connection management system with adapter and locking clamp) that enables threaded connections to be made or broken directly at the rig floor. The adapter acts as a mediator between the existing drilling equipment and the threaded connection components, allowing operations to be performed in-situ without remote disassembly and reassembly, thus improving productivity and reducing time loss.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If conventional disassembly and reassembly procedures are used, then threaded connections can be changed, but the process is costly and time-consuming

Engineering Contradiction:
Improvethreaded connection change efficiencyVSAvoidcost of disassembly and reassembly operations
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The adapter serves as an intermediary that enables threaded connection operations to be performed directly at the rig floor using existing equipment, eliminating the need for costly remote disassembly and reassembly at machine shops. This intermediary device bridges the gap between current operational capabilities and the need for efficient threaded connection management.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If threaded connections are changed at remote locations, then the connections can be modified, but the process requires uninstallation and reassembly which increases complexity

Engineering Contradiction:
Improveability to change threaded connectionsVSAvoidcomplexity of disassembly and reassembly process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The locking clamp and adapter system acts as an intermediary mechanism that simplifies the threaded connection change process. Instead of requiring complex uninstallation and reassembly procedures at remote locations, the intermediary devices enable direct manipulation of threaded connections at the rig floor, reducing operational complexity while maintaining adaptability.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 efficient and cost-effective coupling and decoupling of threaded connections directly on the drilling rig floor, reducing time and expenses associated with traditional disassembly and reassembly procedures.

Implementation Method 1

rotating a second tubular relative to the first tubular to thread or unthread the first tubular to or from the second tubular

Methodology Applied
Scientific EffectTorque: Torque

Implementation Method 2

a locking clamp configured to be secured to a first tubular member

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10370912B2Threaded connection management system and method
Publication Date: 2019.08.06 NABORS DRILLING TECHNOLOGIES USA INC
  • US10370912B2 patent drawing
  • US10370912B2 patent drawing
  • US10370912B2 patent drawing

AI summary

Present embodiments are directed a mineral extraction system comprising a locking clamp configured to be secured to a first tubular member, wherein the locking clamp comprises an outer radial surface having a first geometry and a rotary table adapter. The rotary table adapter comprises a base and an extension extending from the base, wherein the extension defines a recess, the recess comprises an inner radial surface having a second geometry, wherein the first geometry and the second geometry correspond with one another, and the rotary table adapter is configured to be disposed within a rotary table of a drilling rig.