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Crude Oil Pipeline Pass Ball Wax Removal Simulation Experimental Device and Experimental Method

A technology for simulating experimental devices and pipelines, applied in measurement devices, mechanical devices, instruments, etc., can solve problems such as wax deposits peeling off of pipe walls that are not involved in the strength of wax deposits

Active Publication Date: 2017-04-12
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] From the above background research, it can be seen that most of the technical content of the existing published patents is concentrated on the design of new pipe pigs and the development of new tools and new processes on site. At present, it has not been involved in the strength of wax deposits or the pipe wall during pigging. Indoor Simulation of Wax Deposit Exfoliation

Method used

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  • Crude Oil Pipeline Pass Ball Wax Removal Simulation Experimental Device and Experimental Method
  • Crude Oil Pipeline Pass Ball Wax Removal Simulation Experimental Device and Experimental Method
  • Crude Oil Pipeline Pass Ball Wax Removal Simulation Experimental Device and Experimental Method

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Embodiment example

[0072] Experimental conditions: dish-shaped double leather bowl equal-diameter pipe pig (Shore A hardness 85); 50% blending mass ratio of prepared wax deposits; experimental temperature 10°C; wax layer thickness 2, 4, 6mm. The resistance of the wax layer corresponding to the first brief yield stage of the wax removal resistance curve obtained in this experiment is the destructive force of the wax layer corresponding to the thickness of the wax layer. The experimental results are shown in Table 1:

[0073] Table 110°C wax removal test results

[0074]

[0075] It can be seen from Table 1 that the destructive power of the wax layer under 2, 4, and 6 mm is different, but the strength of the wax layer is consistent. This shows that the strength of the wax layer is only related to the characteristics of the wax layer (such as the wax content), and has nothing to do with the thickness of the wax layer. Its average value is 191511.6Pa. This value then defaults to the strength o...

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Abstract

The invention relates to a crude oil pipeline ball passing and wax removal simulation experiment device which comprises an operation desk, wherein a test pipeline is fixed on the operation desk; a ball serving barrel is coaxially arranged at the rear end of the test pipeline; a pipeline cleaner is coaxially arranged in the ball serving barrel; an acrylic cover body is arranged on the operation desk; a hanger rail is fixedly arranged on the inner side of the top of the acrylic cover body; a guide pulley block is slidingly arranged on the hanger rail; a sensor hanging bracket capable of adjusting tension is fixedly arranged under the guide pulley block; a tension sensor is horizontally arranged on the sensor hanging bracket; the front end of the pipeline cleaner is connected with the tension sensor via a first hauling rope; the front end of the tension sensor is connected with a hauling driving system via a second hauling rope; the tension sensor is electrically connected with a measurement and data acquisition system; and the hauling driving system is electrically connected with a servo control system. The device can measure the strength of a wax deposit on a wall of a crude oil pipeline and change of wax removal resistance in a pigging process.

Description

technical field [0001] The invention relates to an experimental simulation device, in particular to a simulation experimental device and an experimental method for wax removal through a crude oil pipeline. Background technique [0002] The terms involved in this case are explained as follows: [0003] Pigging: In order to reduce the friction of oil and gas pipeline transportation, it is necessary to promptly remove the wax, condensate layer, mud, sand, rust and other debris deposited on the inner wall of the oil pipe or the condensate and hydrate remaining in the gas pipe. It is called cleaning in the petroleum industry. Tube. The method of pigging is to put a pig (ball) in the pipe that is in close contact with the inner wall of the pipe, and advance along the pipe wall under the pressure of the oil (gas) flow, and then scrape off the sediment on the pipe wall or push it out. Effusion in the tube. Generally, the pumping station and heating station (or compressor station)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/40G01N19/04
Inventor 黄启玉王文达刘阳进
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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