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Vibration well cementation device with mechanical energy storage function and using method and testing device of vibration well cementation device

A technology of mechanical energy storage and energy storage device, which is applied to vibration generating devices, earth-moving drilling, wellbore/well components, etc., can solve the problems of complex cementing site construction and other problems, achieve simple design, improve compactness and uniformity , the effect of low cost

Active Publication Date: 2022-03-29
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydraulic pulse vibration cementing tools can only generate vibration during cement injection and cement slurry displacement; although mechanical, acoustic frequency, and vibration cementing tools can generate vibration during cement slurry curing, they require ground cables or other Auxiliary equipment, which changes the conventional cementing process, resulting in complex cementing site construction

Method used

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  • Vibration well cementation device with mechanical energy storage function and using method and testing device of vibration well cementation device
  • Vibration well cementation device with mechanical energy storage function and using method and testing device of vibration well cementation device
  • Vibration well cementation device with mechanical energy storage function and using method and testing device of vibration well cementation device

Examples

Experimental program
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Effect test

Embodiment 1

[0128] figure 1 It is a structural schematic diagram of a vibration cementing device with mechanical energy storage. The device includes: casing 1, rubber plug seat 2, energy release trigger device 3, upper support plate 4, energy storage device 5, ratchet pawl mechanism 6, lower support plate 7, eccentric block I8, eccentric block II16 and eccentric block III19, vibration support plate I9, vibration support plate II15, vibration support plate III18, shear pin shaft 10, short transmission shaft 11, transmission gear I12, transducer device 13, transmission gear II14, vibration shaft 17. The mechanical energy storage type downhole vibration cementing tool is lowered into the preset position in the oil and gas well. During the process of cement injection and cement slurry replacement, the energy conversion device 13 converts the kinetic energy of the fluid into the kinetic energy of the shaft on the one hand, and drives it through the transmission gear II14 on the other hand. Th...

Embodiment 2

[0138] Figure 6 Another structural form of a downhole vibratory cementing tool with mechanical energy storage is shown, the difference lies in the different structures of the energy discharge trigger device 3, the overload protection device and the energy conversion device. It mainly includes: casing 1, rubber plug seat 2, energy release trigger device 3, upper support plate 4, energy storage device 5, ratchet pawl mechanism 6, lower support plate 7, eccentric block 8, end vibration shaft 9, overload protection A device 10, a vibration support plate 11, a vibration shaft 12, and a transducer. Its principle and figure 1 The structure is the same as shown, and will not be described in detail here, only the energy-discharging trigger device, overload protection device and energy conversion device are supplemented.

[0139] Figure 7 The shown energy release trigger device 3 is mainly composed of a switch support frame 301 , an expansion material 302 in case of water and oil, ...

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Abstract

The invention provides a mechanical energy storage vibration well cementation device and a using method and a testing device thereof, the vibration well cementation device comprises an energy conversion device, an energy storage device, a vibration shaft, an overload protection device and an energy release triggering device, the energy conversion device is used for converting fluid kinetic energy into kinetic energy of the shaft and driving the vibration shaft to rotate to generate vibration; the energy storage device is used for converting kinetic energy of the shaft into elastic potential energy and storing the elastic potential energy; the overload protection device has an overload protection effect on the energy storage device; and during cement setting waiting, the mechanical potential energy stored by the energy storage device is released through the energy release triggering device to generate radial vibration, so that vibration in the whole process of cement injection, cement paste replacement and cement setting waiting is realized. According to the device, fluid kinetic energy is converted into mechanical potential energy to be stored and eccentric vibration is generated in the cementing and cement paste displacement process, the compactness and uniformity of the cement paste are further improved, the well cementation technology does not need to be changed, underground power equipment does not need to be changed, the design is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of oil and gas well engineering, and in particular relates to a vibration cementing device for mechanical energy storage, a using method and a testing device. Background technique [0002] Cementing is one of the most critical parts of oil and gas production engineering, and vibration cementing is one of the effective means to improve the quality of cementing. Experiments have proved that vibration is the most effective method in the process of cement injection, cement slurry displacement and cement slurry waiting. A key step to improve cementing quality. At present, vibration cementing tools at home and abroad are mainly divided into hydraulic pulse vibration cementing tools, audio frequency vibration cementing tools, annular hydraulic or air vibration cementing tools, mechanical vibration cementing tools, etc., of which hydraulic pulse vibration cementing tools are the most widely used. However, hydraulic pulse vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B28/00E21B33/13
CPCE21B28/00E21B33/13Y02B50/00
Inventor 尹宜勇齐林山张伯伦曲从锋李浩丁雨焘朱文佳王立琰刘斌辉
Owner CHINA AGRI UNIV
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