Title:
COILED TUBING CLAMPING STRUCTURE AND COILED TUBING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/168932
Kind Code:
A1
Abstract:
A coiled tubing clamping structure and a coiled tubing apparatus, relating to the technical field of petroleum drilling. The coiled tubing clamping structure comprises a slip (101) and a slip base (102), wherein protruding portions (103) are arranged on two sides of the slip (101); and limiting holes (104) allowing the protruding portions (103) to be inserted into same are formed in two sides of the slip base (102). According to the coiled tubing clamping structure provided in the present application, in an assembly process of the slip (101) and the slip base (102), one of the protruding portions (103) is first inserted into one of the limiting holes (104), then the other protruding portion (103) is inserted into the other limiting hole (104), such that a limiting effect in an assembly direction is achieved by means of inserted matching of the protruding portions (104) on the two sides of the slip (101) and the limiting holes (104) in the two sides of the slip base (102), so as to avoid the separation of the slip (101) and the slip base (102) in the assembly direction. Compared with the prior art where a multi-point fixing mode such as a cylindrical pin, a spring pin and a spring piece is used, the coiled tubing clamping structure of the present application is more convenient and faster to assemble, and a matching structure is stable and reliable and less prone to being damaged.
Inventors:
CHENG LONG (CN)
WANG YONGQIANG (CN)
LIN XIANQING (CN)
ZHANG JINPENG (CN)
WANG YONGQIANG (CN)
LIN XIANQING (CN)
ZHANG JINPENG (CN)
Application Number:
PCT/CN2022/122354
Publication Date:
September 14, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
SANY PETROLEUM INTELLIGENT EQUIPMENT CO LTD (CN)
International Classes:
E21B19/10
Domestic Patent References:
| WO2013162380A1 | 2013-10-31 |
Foreign References:
| CN204591180U | 2015-08-26 | |||
| CN217270072U | 2022-08-23 | |||
| CN209483245U | 2019-10-11 | |||
| CN215292407U | 2021-12-24 | |||
| DE102006002293A1 | 2007-07-19 | |||
| CN211201806U | 2020-08-07 | |||
| CN211230291U | 2020-08-11 | |||
| US20150204148A1 | 2015-07-23 |
Attorney, Agent or Firm:
TALENT PATENT&TRADEMARK FIRM (CN)
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