Rotatable Sleeve Tubular Coupling for Power Data Transmission
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Solution Overview
Problem
Existing technologies in the oil and gas industry struggle to efficiently transmit both power and data through tubular strings like drill pipes and casings without causing damage to connections, and they are limited by mud flow rates in power generation for downhole tools.
Innovation Solution
A tubular design featuring a rotatable connection sleeve with internal and external screw threads allows for mechanical coupling without rotating the main body, enabling stab-in connections for power and data transmission between tubulars, providing a sturdy and reliable connection that is independent of mud flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing connection technologies are used to join tubular sections, then mechanical coupling is achieved, but power and data transmission capabilities are not supported
Solution Approach 1:
The patent combines mechanical coupling and electrical connection functions into a single integrated connection assembly. The connector includes both mechanical coupling elements for joining tubular sections and electrical contacts embedded within the same assembly, allowing simultaneous achievement of mechanical strength and power/data transmission without requiring separate systems.
Solution Approach 2:
The connection assembly is designed to perform multiple functions simultaneously: mechanical coupling of tubulars, electrical power transmission, and data communication. This multi-functional design eliminates the need for separate systems and enables a single connection point to satisfy all transmission requirements.
2Ease of operation
If rotation of the main body is required for mechanical coupling, then connection is achieved, but damage to connections and increased wear occurs
Solution Approach 1:
The connection system separates the rotation function from the main tubular body by introducing a dedicated connection assembly that can rotate independently. This includes a male connector and female connector with internal threading, allowing the connection to be made through rotation of the connector itself rather than rotating the entire tubular string, thereby protecting the main body from wear and damage.
3Use of energy by moving object
If mud flow rates are used for power generation in downhole tools, then power is generated, but the system becomes dependent on variable mud flow conditions
Solution Approach 1:
The patent introduces an intermediary power transmission system consisting of electrical conductors integrated into the tubular wall. These conductors serve as a mediator to transmit electrical power directly from the surface through the tubular string, eliminating the need for downhole power generation from mud flow and providing a stable, controllable power supply independent of drilling conditions.
4Duration of action of stationary object
If existing connection systems are used, then mechanical coupling is provided, but maintenance frequency increases and usage time is limited
Solution Approach 1:
The patent replaces traditional mechanical coupling systems with an integrated electro-mechanical connection system. This new system combines robust mechanical coupling with embedded electrical conductors, creating a more durable connection that maintains both mechanical integrity and electrical continuity over extended periods, thereby reducing maintenance frequency and extending equipment operational life.
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
This solution enables reliable and efficient power and data transmission along tubular strings, reducing maintenance needs and extending the usage time of downhole equipment, as it allows for robust connections that can transmit more power than existing systems and do not depend on batteries or hydraulic lines.
Implementation Method 1
The connection sleeve comprises: an internal screw thread; and a second shoulder located at a proximal end portion of the connection sleeve and extending radially inward from an inner surface of the connection sleeve to provide a second abutment surface that is configured to engage with the first abutment surface. The mechanical coupling is provided by rotating the connection sleeve to engage the internal screw thread of the connection sleeve with an external screw thread of the other tubular
Data Source
AI summary
A tubular for use in the creation or completion of, or production from, an oil and/or gas well. The tubular comprises; an elongate main body; a stab-in connector element located at an end of the main body; and a rotatable connection sleeve disposed coaxially around a first end portion of the main body at or near said end of the main body. The connection sleeve is configured to provide a mechanical coupling between the tubular and another tubular without requiring rotation of the main body, to thereby provide a stab-in connection between the stab-in connector element of the tubular and a complementary stab-in connector element of the other tubular for electrical power and/or data transmission.