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1. (WO2018218846) PUMPING AND OIL SUCTION TYPE PETROLEUM PACKER

Pub. No.:    WO/2018/218846    International Application No.:    PCT/CN2017/105525
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed Oct 11 01:59:59 CEST 2017
IPC: E21B 33/12
Applicants: JIANGSU JINFENG PETROLEUM MACHINERY MANUFACTURING CO., LTD.
江苏省金峰石油机械制造有限公司
Inventors: GUO, Feng
郭峰
WANG, Hua
王华
CHEN, Xu
陈旭
Title: PUMPING AND OIL SUCTION TYPE PETROLEUM PACKER
Abstract:
A pumping and oil suction type petroleum packer, comprising an upper connector (1); the upper connector (1) is communicated with a center pipe (7) at the bottom of the upper connector (1); a pin (2) is provided on one side of the center pipe (7); an adjusting ring (3) is provided at the bottom of the pin (2); a first O-shaped rubber gasket (4) is provided on one side of the adjusting ring (3); a rubber sleeve (5) is provided at the bottom of the adjusting ring (3); a third O-shaped rubber gasket (10) is provided at the bottom of a bearing connector (9); a setting shear pin (11) is provided at the bottom of the third O-shaped rubber gasket (10); a key (12) is provided at the bottom of the setting shear pin (11); a lower connector (13) is provided at the bottom of the key (12); a compression distance spacer (14) is provided at one side of the key (12); the center pipe (7) is communicated with a drawing tube (16) on the other side of the center pipe (7); a sealing plug pin (19) transversely penetrates through the drawing tube (16); a piston (17) is provided in the drawing tube (16); the piston (17) is fixedly connected to an air cylinder connecting piece (18) on the surface of the drawing tube (16); and a pumping opening (15) is formed on one end of the drawing tube (16). According to the pumping and oil suction type petroleum packer, a device for pumping and clearing away oil dirt in the center pipe is additionally provided on an existing packer, pipe blockage can be effectively prevented, and the service life of the device can be prolonged.