Title:
FRACTURING DEVICE AND FRACTURING METHOD FOR PRESET BALL
Document Type and Number:
WIPO Patent Application WO/2023/097570
Kind Code:
A1
Abstract:
A fracturing device and fracturing method for a preset ball (8), wherein the fracturing device for the preset ball (8) comprises a mandrel (1), a cone (2), a sealing member (3), an anchoring mechanism (4), a lower connector (5), a connecting rod (6), a shearing pin (7), and the preset ball (8); the mandrel (1) comprises a mandrel upper portion (11) and a mandrel lower portion (12), the mandrel upper portion (11) and the mandrel lower portion (12) are in transition connection by means of a mandrel connecting portion (13), the inner diameter of the mandrel upper portion (11) is greater than the inner diameter of the mandrel lower portion (12), and the outer side surface of the mandrel connecting portion (13) is a conical surface; the preset ball (8) is preset in the mandrel upper portion (11), the outer diameter of the preset ball (8) is greater than the inner diameter of the mandrel lower portion (12), the connecting rod (6) is connected to the mandrel upper portion (11) by means of the shearing pin (7), and the connecting rod (6) is used to limit the preset ball (8) in the mandrel upper portion (11), so that the preset ball (8) blocks the inner diameter of the mandrel lower portion (12); and the cone (2) is adapted to the outer side surface of the mandrel connecting portion (13), the lower connector (5) is fixedly connected to the mandrel lower portion (12), and the sealing member (3) and the anchoring mechanism (4) are located between the cone (2) and the lower connector (5).
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Inventors:
ZENG LIAM (CN)
YUAN UREN (CN)
LIU HOOD (CN)
YUAN UREN (CN)
LIU HOOD (CN)
Application Number:
PCT/CN2021/134835
Publication Date:
June 08, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
CHENGDU INNOX TECH CO LTD (CN)
International Classes:
E21B33/134
Foreign References:
| CN212454354U | 2021-02-02 | |||
| CN112901113A | 2021-06-04 | |||
| CN110761735A | 2020-02-07 | |||
| CN205977174U | 2017-02-22 | |||
| US20210238950A1 | 2021-08-05 |
Attorney, Agent or Firm:
SICHUAN LIJIU LAW FIRM (CN)
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