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Measuring device and method for outage state change and restart stress of oil-water mixed pipeline

A technology of outage state and stress determination, which can be used in measuring devices, fluid dynamics tests, and testing of machine/structural components, etc. It can solve the problems of oil-water mixed transportation, such as difficulty in restarting after outage.

Active Publication Date: 2021-07-27
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no experimental device capable of measuring the changes in the shutdown state of crude oil-water mixed transportation and the restart wall stress, so it is very difficult to restart the oil-water mixed transportation shutdown in complex pipeline systems

Method used

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  • Measuring device and method for outage state change and restart stress of oil-water mixed pipeline
  • Measuring device and method for outage state change and restart stress of oil-water mixed pipeline
  • Measuring device and method for outage state change and restart stress of oil-water mixed pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 , figure 2 As shown, the oil water mixed hules provided by the present embodiment and the reactive stress measuring device, including the experimental line unit 1, the rotary operation unit 2, and the temperature control unit 3.

[0032] The experimental pipeline unit 1 is used to simulate the operation of the pipe oil water mixing and the reacture process. The experimental line unit 1 employs the L-type combination line 11, the L-type combination line 11 includes a pressure pipe section 111 and a test pipe section 112, and the pressure pipe section 111 and the test pipe section 112 are detachable connected by underwater solenoid valve 113, the L-shaped combination The pressure pipe section 111 of the line 11 and the top opening end of the test pipe section 112 each have end caps 114, wherein the underwater solenoid valve 113 is connected to an external power source 116 by a solenoid valve power supply line 115.

[0033] The rotation operation unit 2 is used t...

Embodiment 2

[0039] In this example, the apparatus of the combined pipeline oil water mixing stop is based on the apparatus of Example 1 and the simulation of the reactive process is divided into operation of the initial stream observation, standing and reboot stress test. The specific process is:

[0040] S1, before the experiment

[0041] Check if the experimental device is in normal operation, including whether the cooling heat system 33 is normal, whether the heat transfer flow path 34 is normal, whether the rotating bearing 23 and the rotary electric machine 24 are normal, the transparent water tank 31 is normal, underwater solenoid valve 113 Whether you can switch normally.

[0042] S2, the oil sample preparation is rotated before the pipeline

[0043] According to the determined experimental scheme, a mixing ratio of oil and water is determined, and the temperature required for the experiment is set by the cooling heat system 33, and the electromagnetic valve 113 of the oil sample injec...

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PUM

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Abstract

The present invention relates to a device and method for measuring the change of outage status and restart stress of an oil-water mixed transportation marine pipeline. The experimental pipeline unit adopts an L-shaped combined pipeline; the rotating operation unit is used to rotate the L-shaped combined pipeline so that the oil and water in the pipeline section are evenly mixed; the temperature control unit is used to control the L-shaped combined pipeline Medium oil-water mixing temperature, simulating the real use environment, studying the change rule of the initial flow pattern of oil-water mixed transportation outage and restarting stress test under different temperature conditions. The invention can quickly and conveniently measure the shutdown and restart characteristics of oil-water mixed transportation in the combined pipe under different water contents and different temperatures.

Description

Technical field [0001] The present invention relates to a variation of an oil-water mixed sea tube and a re-start stress measuring apparatus and method involving the retrofit field of crude oil pipeline stop. Background technique [0002] In response to sea-free platform, crude oil pipeline replacement, stopping is a difficult point in the design and automation of pipeline, exploring oil-water mixed hoses, starting stress measurement, and precise predictive stop pipeline start pressures are key. Sea crude oil mining facing high wax crude oil, heavy oil and ultra-ferrous oil and other unique crude oil resources, the development scope is also expanded from the land to the near sea and deep water. Unconventional oil-containing wax, colloidal, asphalt, has a high viscosity, fluidity difference, etc., the viscosity increases sharply, so that the starting pressure is extremely large; and the crude oil is always accompanied by oilfield Water, easy to form emulsion, due to the presence o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 张明王帅王春升敬加强朱国金孙杰郑晓鹏尚超王海燕
Owner CHINA NAT OFFSHORE OIL CORP