Drilling fluidic element detection device

Abstract

The invention provides a drilling fluidic element detection device comprising a flow meter joint, an upper gland, an outer pipe, an outer pipe joint, a pump, a data collector, and a computer. The outer pipe is internally equipped with a fluidic element, a hydraulic cylinder, a cylinder head and a locating spacer sleeve which are installed from top to bottom. The output pipeline of the pump is connected with the inlet end of the flow meter joint. After the flow meter joint, the upper gland, the outer pipe and the outer pipe joint are connected in sequence, and the outer pipe joint is connected with the reflux pipeline of the pump. According to the device, a working fluid medium is transmitted through the pump to drive the fluidic element inside the outer pipe to work, a flow meter and a pressure sensor detect the change in the parameters of liquid inside the fluidic element in a working state, and the data collector and the computer collect and store flow and pressure data for analyzing, optimizing and improving the working parameters of the fluidic element. The detection device is relatively simple in structure and convenient to assemble and disassemble, and is conductive to replacement and installation of fluidic elements of different parameters in the test process.

Description

Technical field: [0001] The invention relates to the field of oil drilling, in particular to a jet element detection device for drilling. Background technique: [0002] At present, the most commonly used bottomhole power devices are screw and turbine, which convert the energy of the input fluid into mechanical energy to drive the work of other bottomhole tools. The jet element is also a bottom hole power device, which has the advantages of compact structure, high back pressure resistance, and good stability in deep wells. It is a component that uses the wall-attached switching characteristics of liquid jets to automatically control the movement of pistons, hydraulic cylinders and other actuators. The jet element can alternately distribute liquid to the upper and lower chambers of the hydraulic cylinder to drive the piston to reciprocate, thereby driving other components. The tool works or produces a beneficial effect. Now jet components have been widely used in geological ...

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Problems solved by technology

[0003] However, the performance of the fluidic element needs to be judged through experiments. The internal geometric parameters of the fluidic element are many and interact with each other, and the debugging work is cumbersome. In addition, the fluidic element is small in size and has a complex internal structure, which is not conducive to direct measurement with instruments. Therefore, It is necessary to design a special detection device to detect the change of the liquid parameters in the device during the normal operation of the jet element, and judge the working condition of the jet element, which is more conducive to the design optimization of the internal geometric parameters of the jet element, so that the jet element can be used in the bottom hole power tool The field of design is more widely used

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