Patent ID: 11905829
Assignee: CHINA OILFIELD SERVICES LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E  G

Claim 6:
7. The integrated logging instrument for coring and sampling according to claim 1, wherein the piston structure comprises an adapter, a first chamber and a second chamber which are separated from each other, a first piston, and a second piston, the first piston is arranged in the first chamber, the second piston is arranged in the second chamber, the first piston and the second piston are connected and installed at an output end of the motor through the adapter, the motor is configured to operate in forward and backward rotations to drive the first piston and the second piston to make piston movement synchronously; the power mechanism is provided with a hydraulic chamber, the pump body is provided as a plunger pump and is arranged in the hydraulic chamber, and an output end of the pump body transmits a formed high-pressure liquid to the coring and sampling mechanism through a hydraulic pipe.