Search International and National Patent Collections

1. (WO2013155734) COILED TUBING CLAMPING MECHANISM AND INJECTOR HEAD USING CLAMPING MECHANISM

Pub. No.:    WO/2013/155734    International Application No.:    PCT/CN2012/074908
Publication Date: Fri Oct 25 01:59:59 CEST 2013 International Filing Date: Sun Apr 29 01:59:59 CEST 2012
IPC: E21B 19/22
Applicants: YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD
烟台杰瑞石油服务集团股份有限公司
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO.,LTD
烟台杰瑞石油装备技术有限公司
LIU, Dong
刘东
YU, Qingfeng
于清峰
FANG, Jilei
方基垒
Inventors: LIU, Dong
刘东
YU, Qingfeng
于清峰
FANG, Jilei
方基垒
Title: COILED TUBING CLAMPING MECHANISM AND INJECTOR HEAD USING CLAMPING MECHANISM
Abstract:
A coiled tubing clamping mechanism comprises a saddle-shaped clamping block (1) and a clamping block seat (4). The saddle-shaped clamping block (1) is connected to the clamping block seat (4). Two sides of the saddle-shaped clamping block (1) are provided with a tongue platform (102). The tongue platform (102) is provided with an open hole (103). The back of the saddle-shaped clamping block (1) is provided with a groove (104). Two sides of the clamping block seat (4) are provided with a pair of bosses (406) respectively. The groove (104) of the saddle-shaped clamping block (1) is inserted in a holding slot (405) formed by the bosses (406) of the clamping block seat. A traverse gap is kept between the groove (104) and the holding slot (405). The clamping block seat (4) is provided with a positioning screw (2) for limiting the position of the saddle-shaped clamping block (1). Also disclosed is an injector head using the coiled tubing clamping mechanism, comprising a tubing clamping mechanism (11) and a drive chain (13). The tubing clamping mechanism (11) is mounted on the drive chain (13) through two pin holes (401) in the clamping block seat (4). The present invention can effectively prevent the tubing from being worn, is reliable in use, and makes it convenient to replace the clamping block.