Title:
OIL EXTRACTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/186021
Kind Code:
A1
Abstract:
An oil extraction system, comprising a main sucker rod member (1) and a connector (2). The main sucker rod member comprises a core portion (11) and a protective layer (12) surrounding the core portion. A sucker rod having an electric trace heating function further comprises a metallic pipe-armored electrically-heated electric cable (13). A sucker rod having a fluid-trace heating and dilution functions further comprises a metallic pipe (14). The connector is disposed at an end of the main sucker rod member. The core portion is made from a resin-based carbon fiber composite material, and the protective layer is made from a fiber-reinforced composite material or a metal material. The connector is a mechanical fastening connector or an adhesive connector, wherein the mechanical fastening connector is connected to the main sucker rod member by means of mechanical fastening, and the adhesive connector is connected to the main sucker rod member by means of adhesion.
Inventors:
ZHANG JIANGONG (CN)
Application Number:
PCT/CN2017/080886
Publication Date:
November 02, 2017
Filing Date:
April 18, 2017
Export Citation:
Assignee:
ZHANG JIANGONG (CN)
International Classes:
E21B17/00
Domestic Patent References:
| WO2014100990A1 | 2014-07-03 |
Foreign References:
| CN206246065U | 2017-06-13 | |||
| CN1258805A | 2000-07-05 | |||
| CN203008798U | 2013-06-19 | |||
| US4822201A | 1989-04-18 | |||
| CN105172169A | 2015-12-23 | |||
| CN104343396A | 2015-02-11 | |||
| CA2063939A1 | 1992-10-12 |
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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