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Metering device suitable for high water cut experiment and metering method

The technology of a metering device and a metering method, which is applied in the field of petroleum engineering, can solve the problems of small oil production and influence on accuracy, and achieve the effects of real-time metering, low cost and simple device structure.

Inactive Publication Date: 2019-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When it comes to indoor oil displacement experiments under high water cut conditions, the accuracy of existing experimental devices and experimental methods is affected due to the very large liquid production rate but the very small oil production rate

Method used

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  • Metering device suitable for high water cut experiment and metering method
  • Metering device suitable for high water cut experiment and metering method
  • Metering device suitable for high water cut experiment and metering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] figure 1 A schematic structural diagram of a metering device suitable for high water content experiments is shown according to an exemplary embodiment of the present invention. figure 2 A schematic diagram of a connecting pipe according to an exemplary embodiment of the present invention is shown.

[0074] Such as figure 1 and figure 2 As shown, a metering device suitable for high water cut experiments in this embodiment includes an oil production metering unit and a liquid production metering unit, wherein the oil production metering unit includes:

[0075] Connecting pipe 5, connecting pipe 5 comprises a vertical pipe section 53, a first U-shaped pipe section 51 and a second U-shaped pipe section 52, and the two ends of the vertical pipe section 53 are respectively connected with the first U-shaped pipe section 51 and the second U-shaped pipe section 52 , the other end of the second U-shaped pipe section 52 is the liquid outlet 3;

[0076] Metering tube 2, the m...

Embodiment 2

[0088] image 3 A schematic flow chart showing a metering method suitable for high water content experiments according to an exemplary embodiment of the present invention is shown.

[0089] Such as image 3 As shown, a kind of metering method suitable for high water content experiment of the present embodiment comprises:

[0090] Step 1, placing the metering device at the liquid outlet 3 of the high water content experimental device, setting the liquid production measurement unit below the liquid outlet 3, and filling the oil production measurement unit with experimental water;

[0091] Step 2, the volume of oil production is obtained through the volume scale mark of metering tube 2, and the volume of total liquid production is obtained through the liquid production measurement unit;

[0092] Step 3, obtain the water production volume based on the total liquid production volume and the change in the water phase liquid level of the scale mark;

[0093] Utilize the metering d...

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Abstract

The invention discloses a metering device suitable for a high water cut experiment and a metering method. The metering device comprises a connecting pipe and a metering pipe, wherein the connecting pipe comprises a vertical pipe section, a first U-shaped pipe section and a second U-shaped pipe section, two ends of the vertical pipe section are connected with the first U-shaped pipe section and thesecond U-shaped pipe section respectively, and the other end of the second U-shaped pipe section is a liquid outlet; and the metering pipe is a straight pipe, one end of the metering pipe is connected to the other end of the first U-shaped pipe section, the other end of the metering pipe is connected to a liquid receiving port, and the vertical pipe section, the first U-shaped pipe section, the second U-shaped pipe section and the metering pipe are integrally formed. The metering device has the advantages of simple structure, good economy and convenient operation. The metering method of the invention can realize accurate metering of the oil-water phase under the condition of large water production, can perform real-time metering and is little affected by a liquid production rate.

Description

technical field [0001] The invention relates to the field of petroleum engineering, in particular to a metering device and a metering method suitable for high water content experiments. Background technique [0002] In the field of engineering, at present, most oilfields in China have entered the stage of high water-cut and ultra-high water-cut, so the experimental research on high-water-cut and ultra-high-water-cut reservoirs is also increasing. In the existing oil-water metering device, when it comes to the indoor oil flooding experiment under the condition of high water content, the liquid production in the late stage of water flooding is very large while the oil production is very small. Therefore, under the condition of extremely high water content, the existing Oil-water metering devices and methods often have low metering accuracy, and are even difficult to measure. [0003] At present, there are two types of the most common oil-water metering devices under high wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F22/00
CPCG01F22/00
Inventor 唐永强王锐崔茂蕾
Owner CHINA PETROLEUM & CHEM CORP
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