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Sound wave measurement device and sound wave measurement method for indoor well cementing quality evaluation

A quality evaluation and measurement instrument technology, applied in the field of oil and gas well cementing, can solve the problems of inability to evaluate the cement sheath cementation quality evaluation experiment, the data quality cannot better meet the cementing situation, and deep holes cannot be detected.

Pending Publication Date: 2020-10-27
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is a lack of acoustic measuring instruments that can be used for indoor cementing quality evaluation. Li Yuxia invented a device and method for indoor dispersion analysis and calibration of acoustic logging instruments (Li Yuxia, Huang Fei, Lu Tao, Li Jian, Yu Guohua, Zhang Han, Li Yamin, Li Wenbo. A device and method for indoor dispersion analysis and correction of acoustic logging tools [P].CN109782369A, 2019-05-21), but the device is directly An invention to correct the data, it is not possible to carry out experimental research on the evaluation of the cementing quality of the indoor simulated cement sheath cementing
Wang Huairen provided a logging transducer with one engine and two receivers with hydraulic mode (Wang Huairen. One engine and double receiver logging transducer with oil pressure [P].CN204583643U,2015-08- 26.), this device solves the defect problem that the traditional one-engine and double-receive transducer cannot detect in deep holes above 200 meters, but it cannot be used indoors for simulated well logging experiments
Chinese patent CN202731903U discloses a logging transducer with one transmission and two receptions for an acoustic wave instrument, but the instrument only contains two receivers, so the quality of the received data may not be better in line with the actual cementing situation

Method used

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  • Sound wave measurement device and sound wave measurement method for indoor well cementing quality evaluation

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Experimental program
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Effect test

Embodiment 1

[0038] like figure 1 As shown, an acoustic measuring device for indoor cementing quality evaluation consists of a multi-receiving transducer (composed of a probe rod 2, a transmitting probe 3, a first receiving probe 4 and a second receiving probe 5), Cables (a transmitter cable 6 and eight receiver cables 7), an ultrasonic measuring instrument 9 and a supporting space cementing model.

[0039]The one-shot multi-receiving transducer is made up of a probe rod 2, a transmitting probe 3, a first receiving probe 4, and a second receiving probe 5. The transmitting probe 3 is a transmitter, and the transmitting vibrator wherein is composed of a ring oscillating The device can emit ultrasonic waves to the surroundings. The first receiving probe 4 and the second receiving probe 5 have two receiving channels, which are respectively the first receiving channel and the second receiving channel. The first receiving channel is provided with four receivers. The second receiving channel is ...

Embodiment 2

[0050] The method of indoor cementing quality evaluation experiment using the above-mentioned acoustic wave detector device:

[0051] Cementing quality evaluation experiment: First, put the one-shot multi-receiving transducer into the casing 1 from the bottom of the casing 1 in the order that the transmitting probe 3 is on top, the first receiving probe 4 and the second receiving probe 5 are on the bottom. Then the transmitter cable 6 and the receiving transducer cable 7 plugs are correspondingly inserted into the transmitter cable jack 14 and the receiver cable jack 13, the first power switch 12, the heating switch 11 are turned on, the second power switch 5, and then Adjust the experimental temperature on the temperature controller 9, start the computer 16, open the operation test software, adjust the emission voltage, emission pulse width, T0 time, interference elimination time, first wave confirmation amplitude, and gate closing voltage as required in the operation test sof...

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Abstract

The invention discloses a sound wave measurement device for indoor simulation well cementing quality evaluation, and an application method. The sound wave measurement device for indoor simulation wellcementing quality evaluation comprises a one-emitter multi-receiver energy converter, a cable, an ultrasonic measurement instrument and a matched spaced well cementing model. The one-emitter multi-receiver energy converter is formed by a probe rod, an emitter and eight receivers; the energy converter is placed into a matched sleeve pipe so as to be used for measuring and is connected into the ultrasonic measurement instrument through the cable; a computer with a liquid crystal display is arranged in the ultrasonic measurement instrument; operational test software is installed in the computer;and data acquisition can be carried out in the test software. The sound wave measurement device can be used for carrying out the research on the indoor evaluation of the cementing quality of well cementing simulation experiments with different densities of cement sheathes; the energy converter is matched with the size of the sleeve pipe, so that the system error can be automatically eliminated, and the experiment result error is reduced; and by designing the eight receivers in the device, the experiment data quality can be improved, and a measurement result is more accurate.

Description

technical field [0001] The invention relates to a measuring instrument and a method for evaluating the cementing quality of the first and second interfaces of the cementing quality, which can measure the cementing quality status between the casing pipe and cement, and between the cement and the well wall indoors. It belongs to the field of oil and gas well cementing. Background technique [0002] Oilfield cementing is an important basic work, which is related to the later working conditions and safety performance of the oil well. At present, the cementing quality inspection in most oilfields in China mainly adopts the sonic cement bonding logging method. As we all know, sound waves propagate in different media , its acoustic properties will be different, sonic logging technology just utilizes these different acoustic properties of rocks to judge the cementing quality. In the acoustic cement bond logging method, which includes acoustic amplitude variable density logging (CBL...

Claims

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Application Information

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IPC IPC(8): E21B47/005E21B47/16
CPCE21B47/16
Inventor 步玉环田磊聚谭凌方郭胜来柳华杰郭辛阳宦浩然
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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