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Evaluation and rectification method based on operation conditions of rod-pumped wells in whole block

A technology of pumping wells and operating conditions, which is applied in the field of efficiency calculation and analysis, and can solve problems such as the inability to meet the production needs of economically effective development

Active Publication Date: 2016-08-17
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide an evaluation and rectification method based on the overall block pumping well operation status, which is used to solve the problem of taking a single pump well as the optimization rectification target in oil field production , has been unable to meet the production needs of economic and effective development

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  • Evaluation and rectification method based on operation conditions of rod-pumped wells in whole block
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  • Evaluation and rectification method based on operation conditions of rod-pumped wells in whole block

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Embodiment Construction

[0134] Below in conjunction with accompanying drawing, the present invention will be further described:

[0135] This evaluation and rectification method based on the operation status of pumping wells in the whole block:

[0136] 1. Extract sample data from the A2 database (China Petroleum Oil and Gas Water Well Production Data Management System) by block, including data: stroke, stroke times, balance degree, pump diameter, pump depth, submersion degree, casing pressure, oil pressure , flow pressure, pump displacement coefficient and suspension point work diagram data (144 points, including displacement and load data).

[0137] 2. Calculate the load load rate, torque load rate and power load rate according to the following formulas;

[0138]

[0139]

[0140]

[0141] 3. Calculation of ground efficiency, underground efficiency and system efficiency by power diagram method:

[0142] 3.1 Carry out ground and underground efficiency and system calculations according to ...

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Abstract

The invention relates to an evaluation and rectification method based on operation conditions of rod-pumped wells in a whole block. Relevant data in an A2 database are extracted; the load rate, the torque load rate and the power load rate are worked out, and ground efficiency, underground efficiency and system efficiency are worked out through indicator diagram data; and evaluation criterions of key nodes such as the rod-pumped well system efficiency, the motor load rate, the reduction gearbox load rate, the polished rod load rate, the pump discharge coefficient and the submergence depth, and corresponding rectification measures are established. The operation conditions of the rod-pumped wells in the whole block are considered, the wells to be rectified are screened out according to the evaluation criterions, the numbers of the wells are listed, the specific rectification measures are proposed for the wells according to specific problems, and the reliable technological method is provided for efficient and economical management of the wells in the whole block.

Description

technical field [0001] The invention relates to the calculation and analysis of the efficiency of the pumping well group in the whole block, the evaluation of the overall operation status and the rectification method, in particular to the evaluation and rectification method based on the operation status of the pumping unit in the whole block. Background technique [0002] Although the system efficiency of beam pumping wells in various domestic oilfields has been increasing year by year in recent years, the increase rate has dropped significantly, and it is becoming more and more difficult to propose energy-saving rectification measures. At present, due to the wide application of various energy-saving measures and energy-saving equipment, the single-well efficiency of pumping wells is generally high, and the energy-saving space of most oil wells is limited. Simply taking a single pumping well as the optimization and rectification target has been unable to meet the economically...

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Application Information

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IPC IPC(8): E21B47/00E21B47/008E21B43/00
CPCE21B41/0092E21B43/121E21B47/00E21B47/008
Inventor 冯子明高启明丁焕焕方欣谭晶晶李欣洋姜民政杨胡坤王素玲周瑞芬董康兴
Owner NORTHEAST GASOLINEEUM UNIV
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