Insert Safety Valve for Piping Integrity
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Solution Overview
Problem
Existing insert safety valves in the oil industry require complex operations for activation and cannot maintain the functionality of the main piping safety valve after removal, limiting their usability and potentially damaging the piping safety valve during operation.
Innovation Solution
An insert safety valve with a housing, extendable slips, hydraulic line, annular seals, and a spring-driven valve device is mounted within the flapper piping safety valve, allowing for independent control and alignment of openings to prevent damage and ensure the main valve remains operational after removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an insert safety valve is mounted within a piping safety valve to provide backup safety protection, then safety reliability is improved, but the piping safety valve cannot be used after the insert valve is removed
Solution Approach 1:
The insert safety valve is designed as a separate, self-contained unit with its own housing, valve body, and control mechanisms that can be independently installed and removed from the piping safety valve. This segmentation allows the insert valve to provide backup safety protection while not permanently modifying the piping safety valve structure.
Solution Approach 2:
The insert safety valve is nested within the piping safety valve housing, with the insert valve body positioned inside the piping valve housing. The insert valve can be lowered on a cable through the piping valve in open state, then positioned and secured in the closed state within the housing, providing space-efficient dual-valve protection.
2Ease of operation
If equipment is lowered on a cable through the piping safety valve, then installation flexibility is improved, but the piping safety valve must be opened which compromises safety
Solution Approach 1:
The insert safety valve is designed with dynamic positioning capability, allowing it to be lowered in the open state on a cable, then rotated or positioned to the closed state within the piping valve housing. This dynamic transition enables installation flexibility while maintaining safety protection during the operation.
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
The solution enables the main piping safety valve to function normally after the insert safety valve is removed, preventing damage and allowing for independent control, thus maintaining the operational integrity of the piping safety valve.
Implementation Method 1
a spring-driven element, the insert safety valve comprises a housing having a longitudinal bore, a landing nipple with extendable slips
Implementation Method 2
a hydraulic line, annular seals and a valve device with a spring-driven element
Data Source
AI summary
The invention relates to the oil industry and the production of oil. An insert safety valve is mounted inside a piping safety valve in a production tubing string and comprises a housing having a longitudinal bore, an upper landing assembly with extendable slips for fixing inside the piping safety valve having a landing nipple, a hydraulic line, annular seals and a valve device with a spring-driven element. The insert safety valve is mounted on a carrying cable, the hydraulic line has tubes connected to two valves. The first valve is connected to the piping safety valve housing in the production tubing string, and the second valve extends to a port in the inner portion of the landing nipple. A hollow sleeve functions as a moving element, and the valve device is formed as openings in the sleeve and in the housing, wherein the openings are configured to being aligned.