Compressible foam material performance testing and evaluating device

Abstract

The invention provides a compressible foam material performance testing and evaluating device. The device comprises an experimental casing group, liquid volume tanks, pressurizing devices, temperature sensors, pressure sensors, liquid level detectors, a data collection system and high-pressure pipelines; the experimental casing group is perpendicularly arranged on a base and used for simulating an underwater wellhole, the liquid volume tanks provide fluid media for the experimental casing group, the pressurizing devices are used for providing flowing pressure for fluid in the experimental casing group, the temperature sensors are used for measuring temperature field variation of the fluid in the experimental casing group, the pressure sensors are used for measuring pressure field variation of the fluid in the experimental casing group, the liquid level detectors are used for measuring liquid level change values of the fluid in the experimental casing group, the data collection system is used for collecting and processing temperature data, pressure data and liquid level data of the fluid in the experimental casing group, and the high-pressure pipelines are used for providing fluid circulating channels. According to the compressible foam material performance testing and evaluating device, the deep-water underwater wellhole can be simulated, the temperature and pressure distribution situation of the deep-water underwater wellhole can be accurately described, and accurate testing data can be provided for the optimization design of the wellbore structure.

Description

technical field [0001] The invention relates to the technical field of performance testing of foam wrapped in underwater well shafts, in particular to a performance testing and evaluation device for compressible foam materials. Background technique [0002] Due to the influence of water depth, the temperature of the seabed and shallow formations is low, while the temperature of the reservoir fluid is relatively high. In the early hours of oil and gas well testing and production, the annulus of each layer of casing will be sealed due to the flow of oil and gas in the wellbore The temperature of the fluid in the space increases significantly. As the test or production time continues, the temperature of the wellbore can rise by nearly 100 degrees, which will lead to a sharp increase in the pressure in the confined space, which will seriously damage the integrity of the wellbore. At present, most of the deepwater wellbore temperature and pressure measurements use on-site measure...

AI Technical Summary

Problems solved by technology

[0002] Due to the influence of water depth, the temperature of the seabed and shallow formations is low, while the temperature of the reservoir fluid is relatively high. In the early hours of oil and gas well testing and production, the annulus of each layer of casing will be sealed due to the flow of oil and gas in the wellbore The temperature of the fluid in the space increases significantly. As the test or production time continues, the temperature of the wellbore can rise by nearly 100 degrees, which will lead to a sharp increase in the pressure in the confined space, which will seriously damage the integrity of the wellbore

At present, most of the deepwater wellbore temperature and pressure measurements use on-site measurement points and theoretical predictions. Due to insufficient understanding of wellbore temperature and pressure, the research on foam materials for wellbore annular pressure prevention technology is still in the prediction stage, and there is a lack of accurate experimental research.

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