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Intercepting type vibration well cementation device

A technology of cementing and vibration frequency, which is applied in the direction of vibration generating device, wellbore/well components, sealing/isolation, etc., can solve the problems of complex control and vibration wave failure, so as to improve control accuracy, reduce adjustment process, improve The effect of cementing quality

Active Publication Date: 2022-06-24
大庆振峰石油科技有限公司
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Problems solved by technology

[0004] Therefore, the present invention provides a shut-off type vibratory cementing device to overcome the problem that the vibration wave of the vibratory cementing device in the prior art cannot be accurately and complexly controlled

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  • Intercepting type vibration well cementation device
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Embodiment Construction

[0047] In order to make the purpose and advantages of the present invention clearer, the present invention will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0048] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

[0049] It should be noted that, in the description of the present invention, the terms “upper”, “lower”, “left”, “right”, “inner”, “outer” and other terms indicated in the direction or the positional relationship are based on the drawings. The direction or positional relationship shown is only for the conve...

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Abstract

The invention relates to an intercepting type vibration well cementation device, which relates to the technical field of oil and gas well engineering and comprises a vibration unit, a detection unit and a central control unit. The guide seat with the inclined through hole is arranged in the vibration unit, the flow direction and the impact direction of cement paste are controlled, radial rotary vibration is provided by arranging the eccentric impeller, bubbles in the cement paste are eliminated through vibration, the solidification time of the cement paste is shortened, meanwhile, rotary pulse vibration is provided by arranging the turning plate wheel, and the cement paste is prevented from falling off. The vibration unit achieves composite and uniform vibration, the stability of the vibration period of the vibration unit is guaranteed, a central control unit is arranged to adjust the friction coefficient of a first friction bearing and a second friction bearing according to the real-time vibration frequency, and the injection pressure of external cement paste injection equipment is adjusted according to the real-time vibration frequency; the vibration wave is accurately and complexly controlled in the vibration well cementation process, and the well cementation quality is improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas well engineering, in particular to a shut-off vibration cementing device. Background technique [0002] Cementing is a construction operation in which casing is run into the oil and gas well and cement is injected into the annular space between the wellbore and the casing. Generally, at least two wells are cemented during drilling operations, and as many as four to five times. Due to the density of the cement itself and the existence of impurities such as air bubbles, cracks and voids often occur during the cement solidification process, which may easily lead to poor cementing quality or even unqualified problems. Channeling affects the oil and gas production. Therefore, it is one of the effective technical means to improve the cementing quality by vibrating the cement slurry during the cementing process. [0003] In the currently used vibration cementing devices, the drilling fluid is used t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B28/00E21B33/13
CPCE21B28/00E21B33/13
Inventor 何亮范翔宇齐英宸李坷芮张鑫李梦隆
Owner 大庆振峰石油科技有限公司
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