Method and device for tracking mixed oil interface of refined oil sequential transportation pipeline
A technology for transporting pipelines and refined oil, applied in pipeline systems, instruments, artificial life, etc., can solve the problems of increased tracking error of mixed oil interface, difficulty in accurately considering pressure and temperature, etc.
Active Publication Date: 2019-06-14
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
Due to the inevitable deviation between the basic data such as pipeline length and diameter used for calculation and the actual situation, and it is difficult to accurately consider the influence of pressure and temperature on the oil volume, as the migration length of the mixed oil section in the pipeline increases , the tracking error of the oil-contaminated interface will gradually increase
Therefore, the accuracy of tracking the mixed oil interface in the sequential delivery pipeline of refined oil needs to be improved urgently
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[0103] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0104] Before describing the specific implementation of the application, the following descriptions are made first:
[0105] In order to ensure that the fluid can be safely transported from the starting point of the pipeline to the end of the pipeline in long-distance oil pipelines, pressurization equipment and valves will be arranged alo...
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The invention provides a product oil sequential transport pipeline mixed oil interface tracing method and device. The product oil sequential transport pipeline mixed oil interface tracing method comprises the steps that characteristic parameters of a pipe section are obtained in real time; the characteristic parameters comprise first data pairs which comprise the upstream pressure head measuring value, the upstream flow measuring value, the downstream pressure head measuring value and the downstream flow measuring value of the pipe section at the current time; on the basis of multiple second data pairs generated at random, the multiple third data pairs are generated, the second data pairs comprise the mixed oil center interface position random value and the mixed oil length random value of the pipe section at the current time, and the third data pairs comprise the upstream pressure head calculation value and the downstream pressure head calculation value of the pipe section at the current time; and the third data pairs with the values forming deviation meeting the preset condition with the corresponding values in the first data pairs are determined, and the corresponding random values of the determined third data pairs are determined to be the mixed oil center interface prediction value and the mixed oil length prediction value of the pipe section at the current time correspondingly. Through the product oil sequential transport pipeline mixed oil interface tracing method and device, the accuracy of product oil sequential transport pipeline mixed oil interface tracing can be improved.
Description
technical field [0001] The present application relates to the technical field of research on the oil-mixed interface of refined oil pipelines, and in particular to a method and device for tracking the oil-mixed interface of a refined oil sequential delivery pipeline. Background technique [0002] As an important problem in the sequential transportation pipeline, the problem of mixed oil in the refined oil pipeline greatly affects the operation and management of the refined oil pipeline. In the pipeline, the two oil products are in direct contact with each other, and generally no isolation device is installed. The two oil products will infiltrate and diffuse each other on the contact interface, resulting in the blending of the oil products. Moreover, with the influence of temperature, pressure, terrain and other factors, the amount of blending of the two oil products in the pipeline increases continuously, forming a longer oil-mixing section. The existence of mixed oil not o...
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IPC IPC(8): F17D5/00G06N3/00
CPCF17D5/00G06N3/006
Inventor梁永图袁梦张浩然徐宁闫亚敏廖绮马晶
OwnerCHINA UNIV OF PETROLEUM (BEIJING)