API Cutting Tool Casing Inner Mechanical Hydraulic Internal Cutter for Oil Well Cementing

Hydraulic internal cutter is a tool for cutting pipe strings, mainly used in the field of oil and gas extraction. It hydraulically drives the blade to cut the stuck pipe string and completes the cutting operation . It is mainly composed of an upper joint, a pressure regulator assembly, a piston assembly, a cylinder liner, a spring, a guide tube assembly, a body, a blade assembly, a righting block and a plug.
Hydraulic internal cutter works as follows:
1. Hydraulic drive : under the action of hydraulic pressure, the piston moves down to push the blade to rotate outwardly around the pin axis, and the blade cuts into the wall of the pipe to be cut.
2. Cutting process : with the increase of hydraulic displacement, the cutting depth of the blade will be increased until the cutting is completed.
3. Recovery : After cutting, lift the drill pipe or oil pipe, drive the blade to recover, and take out the cut pipe column .
 

         Dongying TIANRUI PETROLEUM Technology Co., Ltd., established in November 2003 and located in the Dongying Economic Development Zone, is an investment project in Dongying City.  It is mainly engaged in the research, design, manufacturing and technical services of oil drilling and workover tools.  The company consists of six departments and two workshops, namely the design department, the quality inspection department, the market operation department, the comprehensive department, the technical service department, the financial department, the processing workshop and the assembly workshop.  It possesses rich R & D and design capabilities as well as manufacturing capabilities in oil drilling and workover tools.