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Volumetric water content analyzer

An analyzer, volumetric technology, applied in the field of oilfield crude oil water content analysis equipment, can solve the problems of sample water content, oil well water content error, inability to reflect oil well water content, errors, etc., and achieve high accuracy

Pending Publication Date: 2021-08-17
赵秀珍 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above methods cannot be used for water cut analysis of free water in oil wells. When using the water cut analyzer based on the above principles, sampling is usually performed first, either manually or automatically, and then the water cut analyzer is used to analyze the samples. For water cut analysis, the amount of sample is usually 500~1000g. Local sampling cannot reflect the water content of the entire oil well. There is a large error between the water content of the sample and the actual water content of the oil well. Even if random sampling is performed many times, there is still a large error

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The invention is suitable for the water content analysis of medium and high water content wells, especially for the water content analysis of free water in high water content wells with a water content of more than 90%.

[0040] When in use, the device is connected to the oil field pipe network through the liquid inlet pipe and the drain pipe, and the mixed liquid in the oil field pipe network flows through the device. The mixed liquid refers to the mixed liquid of oil, water and gas exploited in the oil well, hereinafter referred to as the oil liquid .

[0041] like Figure 1-3 A volumetric moisture analyzer shown includes a tank body 1 , a liquid inlet pipe 2 , a drain pipe 3 , and a ventilation pipe 4 .

[0042] The top of the tank body 1 is equipped with an L-shaped ventilation pipe 4 to prevent rainwater and other external debris from entering, and to communicate the inside of the tank body 1 with the outside.

[0043] The upper part of the tank body 1 is equippe...

Embodiment 2

[0055] like Figure 4 In the shown volumetric moisture analyzer, a bypass pipe 13 is installed on the side of the tank body 1 , and the high liquid level sensor 7 and the low liquid level sensor 8 are installed in the bypass pipe 13 .

[0056] The bypass pipe 13 is a glass pipe, and the liquid level scale is arranged on the pipe body.

Embodiment 3

[0058] like Figure 5 In the shown volumetric moisture analyzer, the diameter of the separation funnel 6 is smaller than the diameter of the tank body 1, and there is a gap for the passage of gas between the edge of the separation funnel 6 and the inner wall of the tank body 1. Several connecting rods 22 are installed between the oil pipe 62 and the inner wall of the tank body 1 to fix the separation funnel 6 , the gas below the separation funnel 6 enters the top of the separation funnel 6 through the gap, and is discharged through the vent pipe 4 .

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Abstract

The invention relates to the technical field of oil field crude oil water content analysis equipment, in particular to a volumetric water content analyzer. The water content analyzer comprises a tank body (1), a breather pipe (4) is arranged at the top of the tank body (1), a liquid inlet pipe (2) is arranged on the upper portion of the tank body (1), a drain pipe (3) is arranged at the bottom of the tank body (1), one end of the liquid inlet pipe (2) is connected with an oil incoming pipeline, and the other end of the liquid inlet pipe (2) extends to the center line of the tank body (1), then bends downwards and is connected with a separation umbrella (5) through a connecting rod (22). The upper end of the connecting rod (22) is connected with the end face of the liquid inlet pipe (2), and the lower end is connected with the tip of the separation umbrella (5); a separation funnel (6) is arranged below the separation umbrella (5); and a high liquid level sensor (7), a low liquid level sensor (8) and an oil-water interface sensor (9) are arranged in the tank body (1) from top to bottom. The technical problems that the water content of an oil well cannot be truly reflected through local sampling, and errors are large are solved.

Description

technical field [0001] The invention relates to the technical field of oil field crude oil water content analysis equipment, in particular to a volumetric water content analyzer. Background technique [0002] As an important parameter in crude oil and oilfield sewage treatment fluid (oilfield development), water content is the key data in oilfield production. The accuracy of water cut test results will have a direct impact on reservoir production and development work such as determining water and oil production layers of oil wells (development dynamic analysis), estimating (calculating) crude oil production, and predicting the development life of oil wells. [0003] Commonly used moisture analyzers are divided into: [0004] Radio Frequency Method: Due to the large difference in the impedance of oil and water to electromagnetic waves, the transmitter emits high-frequency electromagnetic waves to the measurement medium. The water content in the medium is different, and the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28
CPCG01N33/2847G01N33/2823
Inventor 赵秀珍焦凤珍其他发明人请求不公开姓名
Owner 赵秀珍