Double Wall Pipe Connection System Screen Coverage
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Solution Overview
Problem
Current well drilling and hydrocarbon recovery operations face challenges in maintaining uninterrupted screen coverage and fluid flow during the connection of production tubing sections, which can lead to disruptions in hydrocarbon flow and potential damage to screen materials.
Innovation Solution
A double wall pipe connection system utilizing a box adaptor and a pin adaptor with centralizer fins, fluid flow ports, and a communication sleeve that maximizes screen coverage and provides a fluid flow path across the junction, using a torque transmission tool to ensure secure coupling without damaging the screen material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pipe connection methods are used during production tubing installation, then the connection process is simple, but screen coverage is interrupted and fluid flow is disrupted
Solution Approach 1:
A communication sleeve is introduced as an intermediary component that bridges the gap between adjacent screen joints during the connection process. The sleeve maintains screen coverage continuity by providing a screened pathway for fluid flow across the joint interface, preventing disruption to the double wall pipe system's filtration and flow functions.
Solution Approach 2:
The connection system is divided into specialized components: a box adaptor for the female end, a pin adaptor for the male end, and a communication sleeve. This segmentation allows each component to perform its specific function - the adaptors provide structural connection while the sleeve maintains screen coverage and fluid flow continuity.
2Reliability
If conventional connection procedures are used, then the installation process is fast, but screen material is damaged during the mating process
Solution Approach 1:
The communication sleeve is pre-installed onto one of the adaptors before the connection process begins. This preliminary action ensures that the screen material is already protected and positioned correctly, preventing damage during the subsequent mating operation and eliminating the need for time-consuming protective measures during assembly.
Solution Approach 2:
The communication sleeve acts as a protective cushion between the connection components and the screen material. By placing the sleeve in advance, it absorbs and distributes mechanical stresses during the mating process, preventing direct contact that could damage the delicate screen joints.
3Productivity
If adaptors are directly coupled without protective measures, then the connection is straightforward, but fluid flow path is blocked at the junction
Solution Approach 1:
The communication sleeve serves as a mediator that creates a continuous fluid flow path across the adaptor junction. It provides an annular space between the sleeve and the adaptors, allowing fluid to flow freely from one side of the connection to the other without being blocked by the joint structure.
Solution Approach 2:
The fluid flow path is redirected into an annular dimension around the communication sleeve rather than through a linear path that would be blocked by the adaptors. This dimensional change allows fluid to bypass the connection interface while maintaining continuous flow through the double wall pipe system.
Data Source
AI summary
A double wall pipe connection system for a production tubing joint is disclosed. The double wall pipe connection system including a box adaptor having a first end and a second end, the first end coupled to a first base pipe and a first screen joint; a pin adaptor having a first end and a second end, the first end coupled to a second base pipe and a second screen joint and the second end of the box adaptor coupled to the second end of the pin adaptor to form a junction between the box adaptor and the pin adaptor; and a communication sleeve positioned across the junction between the box adaptor and the pin adaptor.