Method for calculating oil well liquid production capacity based on ground indicator diagram

A technology of dynamometer diagram and liquid production rate, which is applied in the directions of measurement, earthwork drilling, wellbore/well components, etc., and can solve the problem of poor timeliness and accuracy of measurement, accuracy deviation, and poor measurement of liquid volume Solving problems such as simplification of ground measurement process, reduction of ground investment, reduction of development investment and operating costs

Inactive Publication Date: 2016-06-15
SHANDONG TIANGONG PETROLEUM EQUIP
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Problems solved by technology

[0002] At present, surface metering equipment is generally used in the measurement of oil well liquid production. Most oil fields have entered the high water cut period, and most of the surface processes have been moderately simplified. However, the liquid measurement has not been well solved, and the timeliness and accuracy of measurement are not good. Very poor, in order to better solve the pumping well metering problem
Many people have proposed the method of calculating the liquid production rate of oil wells based on the pump power diagram. Since the conversion from the surface power indicator diagram to the pump power diagram is affected by the inaccurate parameters of the single well, the accuracy of the surface power diagram after it is converted into the pump power diagram There is a deviation

Method used

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  • Method for calculating oil well liquid production capacity based on ground indicator diagram
  • Method for calculating oil well liquid production capacity based on ground indicator diagram
  • Method for calculating oil well liquid production capacity based on ground indicator diagram

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Embodiment Construction

[0017] A method for calculating the liquid production rate of an oil well based on a surface dynamometer diagram, said method comprising the following steps:

[0018] Step 1) Use the on-site data acquisition equipment to obtain the surface dynamometer diagram of the pumping well. The acquisition frequency can be set, and the default acquisition frequency is 1 piece / hour. The calculation method is explained according to the collection frequency of 1 piece / hour;

[0019] Step 2) The ground dynamometer map is uploaded to the data server through the data remote transmission device;

[0020] Step 3) Use the curvature analysis method to determine the effective stroke of the liquid inlet on the surface dynamometer diagram, the liquid production calculation formula 1 to calculate the full-day fluid production of the oil well, and the liquid production calculation formula 2 to calculate the full-day oil production, Liquid production calculation formula 3 takes the average of the liquid...

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Abstract

The invention relates to a method for calculating oil well liquid production capacity based on a ground indicator diagram. The method comprises the following steps: acquiring a ground indicator diagram of a rod pumped well by utilizing an onsite data collecting device, and the ground indicator diagram being uploaded to a data server through a data remote transmitting device; and determining a feed liquid effective stroke of the ground indicator diagram through curvature analysis, and the ground indicator diagram calculating oil wells with errors in liquid production capacity in accordance with different blocks. The advantages of the method are: is simple to operate and manage, can reduce ground investment funds, and guarantee reliability, accuracy, consistency, and timeliness in measuring liquid production capacity of oil wells. The method can simplify ground measuring flow and lower oil field development investment and operation cost.

Description

technical field [0001] The invention relates to a method for calculating the fluid production of an oil well, in particular to a method for calculating the fluid production of an oil well based on a surface dynamometer diagram. Background technique [0002] At present, surface metering equipment is generally used in the measurement of oil well liquid production. Most oil fields have entered the high water cut period, and most of the surface processes have been moderately simplified. However, the liquid measurement has not been well solved, and the timeliness and accuracy of measurement are not good. Very poor, in order to better solve the pumping well metering problem. Many people have proposed the method of calculating the liquid production rate of oil wells based on the pump power diagram. Since the conversion from the surface power indicator diagram to the pump power diagram is affected by the inaccurate parameters of the single well, the accuracy of the surface power dia...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B47/008
CPCE21B47/00E21B47/008
Inventor 田海峰李新华孔强李海波
Owner SHANDONG TIANGONG PETROLEUM EQUIP
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