Oil field heating furnace energy efficiency system evaluation method

Abstract

The invention discloses an oil field heating furnace energy efficiency system evaluation method, which takes an oil field heating furnace as a research object, performs energy-saving detection on the heating furnace, determines the size of each evaluation index according to a test result, and then calculates the information entropy and entropy weight of each evaluation index of the oil field heating furnace by adopting a novel weighting method. The method comprises the following steps: determining a weight sequence through the size of weights, judging main factors influencing the efficiency of the heating furnace, establishing an oil field heating furnace energy efficiency system evaluation model by adopting a grey TOPSIS method, calculating the grey correlation degree and Euclidean distance of each comparison heating furnace through a weighted index matrix, and determining the relative closeness between the operation state of the heating furnace and the ideal operation condition of the heating furnace. According to the method, the problem that the independent variable of the logarithmic function in the weighting formula is zero is solved, the calculation weight and the evaluation process conform to mathematical calculation conditions and practical engineering application, and instructive opinions are provided for energy conservation and consumption reduction work of an oil field.

Description

technical field [0001] The invention relates to the technical field of oil and gas storage and transportation, in particular to an evaluation method for an energy efficiency system of an oil field heating furnace. Background technique [0002] Heating furnace is one of the most widely used energy-consuming equipment in oil fields, and it is one of the essential and important production facilities in all aspects of ground gathering, processing, transportation and injection. It has the characteristics of large quantity, wide application and high energy consumption. Heating at the wellhead of oil wells, water mixing, hot washing, water-containing oil transfer at oil transfer stations, crude oil dehydration, purified oil transfer at combined stations, crude oil stabilization, refined oil transportation, and heating and heat tracing of ground facilities are all inseparable from heating. furnace. Therefore, the heating furnace is a typical large energy consumer in the oil field, ...

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Problems solved by technology

[0005] The above energy efficiency calculation and evaluation methods for oilfield heating furnaces have the advantages of easy understanding, convenient calculation, and objective results. However, when evaluating energy efficiency of oilfield heating furnaces, only the impact of a certain evaluation index on energy efficiency is considered, or several The interaction results of the indicators, while ignoring the limiting condition that the independent variable of the logarithmic function in the indicator weighting formula must be greater than zero, as well as the actual gap in the multidimensional space of the overall evaluation sequence, resulting in unreasonable evaluation results in engineering applications, increasing The actual operating cost of the oilfield heating furnace and other issues

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