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Integral performance evaluation and technical rectification method of pumping unit well group in oilfield block

An integrated technology for pumping wells, which is applied in the fields of production fluid, earthwork drilling, wellbore/well components, etc., and can solve the problems that pumping wells can no longer maintain efficient operation

Active Publication Date: 2021-09-07
WENZHOU UNIVERSITY +2
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Problems solved by technology

[0003] The purpose of the present invention is to provide the integrated performance evaluation and technical rectification method of the pumping unit well group in the oil field block, the integral performance evaluation and the technical rectification method of the pumping unit well group in this oil field block are used to solve the traditional oil pumping problem The evaluation of the operation status of pumping wells and the application methods of technical measures are no longer able to maintain the efficient operation of pumping wells

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  • Integral performance evaluation and technical rectification method of pumping unit well group in oilfield block
  • Integral performance evaluation and technical rectification method of pumping unit well group in oilfield block
  • Integral performance evaluation and technical rectification method of pumping unit well group in oilfield block

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Embodiment Construction

[0070] The present invention is further described below:

[0071] The overall performance evaluation and technical rectification method of the pumping unit group in the oilfield block includes the following steps:

[0072] 1. Collection and arrangement of production data information of pumping wells

[0073] Firstly, test and record the data, or extract the dynamic parameter data of the selected pumping wells in the block from the existing database.

[0074] The data collected, tested and calculated include: torque utilization rate, load utilization rate, power utilization rate, power factor, active power, reactive power, cumulative power consumption, power saving rate balance, stroke, stroke times, pump hanging, Pump diameter, submersion, dynamic liquid level, oil pressure, casing pressure, pump efficiency, pump fullness, flow pressure, etc.

[0075] Data preprocessing: Integrate heterogeneous data of production, oil production and testing, rationalize and eliminate outlier...

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Abstract

The present invention relates to the overall performance evaluation and technical rectification method of the pumping well group in the oil field block, which includes: collecting the production data information of the pumping well in the block, and preprocessing; Determination of characteristic mapping quantity: apply gray system theory to construct gray relational data sequence model; carry out dimensionless processing on pumping well system behavior characteristic mapping quantity data sequence; carry out correlation degree calculation of pumping well system behavior characteristic factors, and Sorting the degree of correlation; according to the production characteristics of pumping units in the middle and late stage of oilfield development and artificial lift theory, establish the evaluation indicators of system efficiency, equipment driving efficiency and wellbore lifting efficiency of pumping unit well system; The first three items in the sex ranking, put forward specific rectification measures. The invention can realize high-efficiency operation of the pumping well and achieve the goal of energy saving and emission reduction.

Description

Technical field: [0001] The invention relates to a method for evaluating the performance of a pumping unit, in particular to an integrated performance evaluation and technical rectification method for a group of pumping units in an oil field block. Background technique: [0002] There are more than 200,000 oil wells in my country, of which pumping wells account for more than 80%. As oilfield development enters the middle and late stages, the production management of pumping wells becomes more mature and the application of big data management, oil wells generally work at a higher efficiency. However, with the change of production conditions, the increase of water cut, the increase of peripheral oil fields, the wide application of energy-saving products and energy-saving technologies, the traditional methods of evaluating the operation status of pumping wells and applying technical measures can no longer maintain efficient operation. At present, the production database of oil...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/30E21B47/00E21B43/00G06Q50/02
CPCE21B43/121E21B43/30E21B47/00G06Q50/02
Inventor 冯子明赵岩崔巍张爽刘芑辰司云轩马擎洋郭晨浩孙瑞
Owner WENZHOU UNIVERSITY
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