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Fractured well oil reservoir testing device

A testing device and technology for fracturing wells, which are applied in measurement, wellbore/well components, production fluids, etc., can solve problems such as sensors and other electronic accessories that cannot withstand pressure, and sensors and other electronic accessories are damaged, so as to achieve clear division of responsibilities, oil production, etc. The hidden data is accurate and intuitive, and the effect of easy implementation

Active Publication Date: 2021-02-09
SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the above-mentioned test process, there are technical difficulties: that is, during fracturing, the high pressure generated underground will make it difficult for electronic accessories such as sensors to withstand the pressure during fracturing. Electronic accessories are damaged, therefore, the present invention is exactly to solve this difficult problem

Method used

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  • Fractured well oil reservoir testing device
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  • Fractured well oil reservoir testing device

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1, with reference to figure 1, a fracturing well reservoir testing device mentioned in the present invention, a second fracturing packer 12, a second fracturing switch 11, a second fracturing tester 10, a first The fracturing packer 8, the first fracturing switch 7, the first fracturing tester 6, the protection packer 5, the buffer tailpipe 4, the well flushing valve 3 and the comparison measuring instrument 2, through the protection packer 5, The first fracturing packer 8 and the second fracturing packer 12 isolate the two oil reservoirs into the first oil reservoir and the second oil reservoir; the second fracturing packer 12 is installed below the second oil reservoir Two fracturing switches 11, the second fracturing tester 10 is installed on the lower side of the second fracturing switch 11, the first fracturing switch 7 is installed under the first fracturing packer 8, the first fracturing switch 7 The first fracturing tester 6 is installed on the lower...

Embodiment 2

[0049] Embodiment 2, a kind of fracturing well reservoir testing device mentioned in the present invention, differs from Embodiment 1 in that:

[0050] This embodiment can be applied to fracturing wells with more than two oil reservoirs, and a corresponding number of fracturing packers, fracturing switches and fracturing testers can be added according to the number of layers of the oil reservoirs, so as to meet the test of more oil reservoirs Work.

[0051] In addition, the difference from Embodiment 1 is: the number of induction grading ports a17 in the high-voltage test inductor 6.3 can also be set in different numbers according to needs, and the first induction contact a14 can measure more pressure changes, so that the drawn track There are more changes in the graph and the display is more intuitive.

Embodiment 3

[0052] Embodiment 3, a fracturing well reservoir testing device mentioned in the present invention (an oilfield downhole testing device), in which a second fracturing packer 12 and a second fracturing switch are installed below the fracturing string 14 11. The second fracturing tester 10, the first fracturing packer 8, the first fracturing switch 7, the first fracturing tester 6, the protection packer 5, the buffer liner 4, the well flushing valve 3 and Blind plugging, by protecting the packer 5, the first fracturing packer 8 and the second fracturing packer 12, the two oil reservoirs are isolated into the first oil reservoir A and the second oil reservoir B; The second fracturing switch 11 is installed under the second fracturing packer 12, the second fracturing tester 10 is installed under the second fracturing switch 11, and the first fracturing switch 10 is installed under the first fracturing packer 8. The fracturing switch 7, the first fracturing tester 6 is installed on...

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Abstract

The invention relates to a fractured well oil reservoir testing device. According to the technical scheme, two oil reservoirs are isolated through packers a second fracturing switch and a second fracturing tester are installed below a second fracturing packer, and a first fracturing switch and a first fracturing tester are installed below a first fracturing packer; a buffer tail pipe is installedon the lower side of the protection packer, a well washing valve is installed on the lower side of the buffer tail pipe, and a comparison measuring instrument is arranged at the lower end of the wellwashing valve; fracturing and testing of the first oil reservoir can be achieved by throwing a first sealing steel ball and turning on the first fracturing switch, and fracturing and testing of the second oil reservoir can be achieved by throwing a second sealing steel ball and turning on the second fracturing switch. The fractured well oil reservoir testing device has the beneficial effects thataccurate measurement of the test device under high pressure can be achieved, and a protection device is arranged to prevent the test device from being damaged; and a changed pressure numerical value can be obtained through a designed high-pressure test sensor, so that the pressure numerical value is displayed on a track chart more intuitively.

Description

technical field [0001] The invention relates to the technical field of oil and gas production monitoring, in particular to a fracturing well reservoir testing device. Background technique [0002] In the process of oil extraction, fracturing is an excellent measure to increase oil production, and its construction quality directly affects the oil production status of oil wells. Technical parameters are extremely important. Therefore, in the method of obtaining downhole geological technical parameters of the reservoir, the method of direct acquisition is particularly important, and the application of electronic technology here will be even more powerful. Using the existing sensors and memory, the method of proportionally amplifying the signal will be used to convert the stratum The technical parameters under harsh environmental conditions in the operation are accurately recorded, taken out after the operation is completed, and displayed through electronic calculations, thereb...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B43/26E21B47/06E21B41/00
CPCE21B41/00E21B43/26E21B47/00E21B47/06
Inventor 魏真真朱善瑜田于军杨晓燕李萧王厉强王艳丽孙肖
Owner SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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