A Method for Measuring the Daily Fluid Production of Pumping Wells Based on Electrical Parameters

A technology of pumping wells and measurement methods, which is applied to the measurement of pumping wells in oil fields and the field of oil production in oil fields, to achieve the effects of less test parameters, improved accuracy, and reduced costs

Active Publication Date: 2017-02-15
哈尔滨斯特凯峰电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that various instruments and manual cooperation are needed to measure the working condition parameters of oil wells, the present invention provides a daily liquid production rate of pumping wells based on electrical parameters that can be detected online in real time during the oil well operation process. Measurement methods

Method used

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  • A Method for Measuring the Daily Fluid Production of Pumping Wells Based on Electrical Parameters
  • A Method for Measuring the Daily Fluid Production of Pumping Wells Based on Electrical Parameters
  • A Method for Measuring the Daily Fluid Production of Pumping Wells Based on Electrical Parameters

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specific Embodiment approach 1

[0041] Specific embodiments 1. This embodiment is described as a method for measuring the daily fluid production of pumping wells based on electrical parameters, and the measurement method is:

[0042] During the normal working process of the pumping unit, the electrical parameters of the pumping well unit are collected in real time, and then the net torque of the corresponding pumping unit is calculated according to the electrical parameters, and at the same time, the crank of the pumping unit is determined to run to the top dead point of the corresponding pumping unit time and the time of bottom dead center;

[0043] After the pumping well has been working continuously for two days, the daily fluid production of a single well is measured by periodic parameter adjustment operation. The period is 2 to 30 days. The number of strokes N is converted to N after parameter adjustment 2 , and lasts for a running time t, N 2 ≠N, t is a time parameter greater than 8 minutes and less ...

specific Embodiment approach 2

[0058] Specific embodiment 2. This embodiment is a further limitation of the method for measuring the daily fluid production of pumping wells based on electrical parameters described in specific embodiment 1. In this embodiment, the dynamic fluid surface coefficient correction process is also included. Specifically for:

[0059] Superimpose the net torque data of multiple consecutive up and down strokes within the first 1-2 minutes after parameter adjustment to obtain the superimposed torque P of up and down strokes 6上下 ;

[0060] According to the P obtained above 5上下 and P 6上下 Get coefficient K 1 ,

[0061] When N 2 When 1 =P 5上下 -NP 6上下 / N 2 ;

[0062] When N 2 When >N, K 1 =P 6上下 -N 2 P 5上下 / N;

[0063] Superimpose the net torque data of multiple consecutive up and down strokes within the last minute after parameter adjustment to obtain the superimposed torque P of up and down strokes 7上下 ;

[0064] According to the P obtained above 7上下 and P 8上下 Get coef...

specific Embodiment approach 3

[0069] Specific Embodiment 3. This embodiment is a further limitation of the method for measuring the daily fluid production of pumping wells based on electrical parameters described in Embodiment 1. In this embodiment, the stroke times N after the parameter adjustment 2 Greater than or equal to 0, and less than or equal to 1.5N.

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Abstract

The invention discloses an electrical parameter based rod pumped well daily fluid production capacity measuring method and relates to the technical field of exploitation in an oil field. The electrical parameter based rod pumped well daily fluid production capacity measuring method solves the problem that the existing measurement of well condition parameters can be achieved through cooperation of various instruments and manpower. The existing measuring method comprises determining the corresponding time when rod pumped well cranks operate to a top dead point and a bottom dead point of a corresponding rod pumped well and site wellheads are difficult in online automatic measurement of the producing well daily fluid production capacity due to gas influences in a testing process. According to the electrical parameter based rod pumped well daily fluid production capacity measuring method, during the measuring process, 1 the gas influences are effectively excluded due to the fact that data is calculated through weight; 2 uncertain factor error or fixed error is effectively eliminated due to the fact that data is performed on differential processing under the same operation station parameter of production wells; 3 different operation states are corrected and compensated; 4 the data density is guaranteed due to high-speed data collection and accordingly the data reliability is achieved; accordingly online, continuous, automatic and practical measurement of single-well daily fluid production capacity is achieved due to combined utilization of the above methods.

Description

technical field [0001] The present application relates to the technical field of oil production in oil fields, and in particular to the technical field of pumping well measurement in oil fields. Background technique [0002] For many years, the method of measuring the daily liquid production of pumping wells has been measured by metering trucks and glass tubes in the metering room. Both of them need to be degassed during the production measurement process. The equipment cost is high, the measurement time is long, and the number of measurement wells is limited; On-site pipelines need to be equipped with oil outlet valves, oil tanks, etc., which are easy to pollute the environment and lose oil, etc.; the liquid level restoration method, there are dead oil surfaces and foam sections in the annulus of oil production wells, and the gas content between the rings is small. Or the effect of wax deposition, or the influence of factors such as inclined wells, liquid level measurement ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
CPCE21B47/00
Inventor 金凯金奇峰王伟
Owner 哈尔滨斯特凯峰电子有限公司
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