Dispenser

Abstract

The invention belongs to the field of oil field water injection tools, and in particular relates to a dispenser, which includes an upper joint, an upper cylinder, an adapter, a lower cylinder, an installation body, a lower joint, an upper central pipe and a lower central pipe, an upper joint, an upper cylinder, a rotational The joint, the lower cylinder, the installation body and the lower joint are threaded sequentially from top to bottom to form the shell of the dispenser, the upper end of the upper central tube is inserted into the upper joint, and the air pipe connected to the adapter After passing through the installation main body and the lower joint, it leads to the outside of the dispenser. The two ends of the lower central pipe are respectively inserted between the adapter and the installation main body. A control valve assembly is arranged in the annular space. A faucet assembly is arranged in the installation main body. Compared with the mechanical dispenser, the present invention does not need lifting and unloading tools when distributing water, and the operating cost is greatly reduced. Compared with the electric control dispenser, because there is no strict working condition requirement, the present invention has better working stability and higher reliability. high.

Description

technical field [0001] The invention belongs to the field of oilfield water injection tools, in particular to an injector. Background technique [0002] The injector is a commonly used downhole tool in the tertiary oil recovery process of oilfields. Its function is to adjust the polymer injection rate of each reservoir to better achieve the purpose of increasing production. At present, most of the injectors used in oil fields are of purely mechanical structure. After the injector is installed, it is necessary to take out the plug in the injector through downhole operation, and replace the water nozzle in the plug. To achieve the purpose of adjusting the amount of injection, this adjustment method often occurs when the fishing device is stuck, and the success rate of fishing is low, which seriously affects the operating efficiency. [0003] In addition, there is also an electronically controlled dispenser in the prior art. When in use, the cable on the ground is connected to...

AI Technical Summary

Problems solved by technology

However, there are obvious defects in this dispenser: the electrical part in this dispenser needs to be completely installed in a closed, dry, and waterproof space, so the sealing performance of the sealing structure in the dispenser is required to be high. In addition, the underground The higher temperature requires high temperature resistance of the electrical components in the dispenser, and many circuit components are easily damaged at high temperatures

It can be seen that the stability of the electronic control system of the electronic control dispenser is poor

[0004] Therefore, it is necessary to design a new dispenser to solve the problems of low operating efficiency and poor stability of the existing dispenser

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