Thermal pollution with injection channels cleared the wax

2013 
The present invention discloses one kind of pollution with hot channel injection cleared the wax, which is mainly from the central tube, the eccentric body, a compression spring, the plugs, the plugs, the guide tube, the plunger, the tapered plug composition, the eccentric body provided on the side of the central tube, with its upper and lower ends of the eccentric body is provided with a cavity communicating with the bore wall of the central tube, the plugs and the plugs provided at the upper and lower port of the cavity , the yarn plug is provided with a tapered hole, the upper end of the guide tube is fixedly connected with the plugs, the upper end of the push rod inserted in the guide tube, the lower end of the plug is provided with a tapered, conical plug on the press the projectile under the action of said tapered bore seal; provided on a side wall of the central tube of the injection channel in communication therewith, a check valve is provided on the drug injection channel. Injection passage is provided between the pipe body and the eccentric position. Hot post-wash is completed, the injection line and is injected through the check valve into the tubing bore injection drug wax, wax extended periods wells, wash well to reduce the number and cost savings.
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