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Separate layer fracturing continuous ball throwing device

A ball-throwing device and layered fracturing technology, which can be used in wellbore/well valve devices, production fluids, wellbore/well components, etc., and can solve the problems of high cost, inconvenient debugging and maintenance, etc.

Inactive Publication Date: 2018-11-09
中石化石油工程技术服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a layered fracturing continuous pitching device to solve the problems of high cost and inconvenient debugging and maintenance of the ball pitching device in the prior art

Method used

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  • Separate layer fracturing continuous ball throwing device
  • Separate layer fracturing continuous ball throwing device

Examples

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Embodiment Construction

[0021] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The specific embodiment of layered fracturing continuous pitching device in the present invention is as Figure 1 to Figure 2 As shown, the layered fracturing continuous pitching device includes a fracturing ball tray assembly, a tray drive assembly and a pitching channel 13 arranged below the fracturing ball tray assembly.

[0023] The fracturing ball tray assembly includes a body 1, in which a pitching gear 2 is rotatably mounted, and the pitching gear 2 is provided with ball storage holes 3 uniformly distributed along the circumference, and each ball storage hole 3 has the same diameter. The housing is provided with a ball drop hole 9 having the same diameter as the ball storage hole 3 , and the ball drop channel 13 is connected below the ball drop hole 9 . In this embodiment, the pitching gear 2 includes a turntable 17 that is rotatably assem...

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PUM

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Abstract

The invention relates to a separate layer fracturing continuous ball throwing device. The separate layer fracturing continuous ball throwing device comprises a body, a ball throwing gear and a drivingdevice used for driving the ball throwing gear to rotate, a ball storage hole is formed in the ball throwing gear, and a ball falling hole is formed in the body; the driving device comprises a rack matched with the ball throwing gear, the ball throwing gear is a one-way gear and / or the rack is in one-way transmission connection with the ball throwing gear, and the single stroke of the rack corresponds to the ball throwing rotation angle of the ball throwing gear. Compared with the prior art that a stepping motor is used, the separate layer fracturing continuous ball injection device is beneficial to cost reduction, and is convenient to control and convenient to debug and maintain.

Description

technical field [0001] The invention relates to a layered fracturing continuous throwing device. Background technique [0002] In the production and development of low-permeability oil and gas fields and shale gas fields, since there are multiple reservoirs in the formation, each reservoir needs to be exploited in one or more stages, so staged fracturing is required, and multi-stage ballistic staged fracturing is used Construction process to open the sliding sleeve. As the number of fracturing stages increases, more and more balls need to be dropped. Most of the existing ball throwing devices are single ball throwing devices, which require construction personnel to enter the construction high-pressure area to switch valves and throw balls to complete the fracturing segmentation, so the personal safety of operators is threatened. In addition, the ball throwing process is complex, discontinuous, time-consuming and laborious, and because these ball throwing devices have no se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B34/08
CPCE21B34/08E21B43/26
Inventor 蒋新立马成云贾光亮李晔旻王飞龙马辉隋明政梁护战付振永邸运武郭立新
Owner 中石化石油工程技术服务有限公司