Bridge type concentric directly-reading testing and regulating meter

Abstract

A bridge type concentric directly-reading testing and regulating meter comprises a cable head, a support mechanism, an inclined shaft sliding actuating unit, a flow meter and a regulating actuator. The lower end of the cable head is connected with a pressure sensor through a circuit board. The support mechanism comprises a support arm fixing seat and a pair of support arms. The inclined shaft sliding actuating unit comprises a motive power motor, a spring, an impacting hammer and a one-way clutch component. The spring is arranged between the motive power motor and the impacting hammer. The impacting hammer is connected to the motive motor in a sliding mode and is capable of rotating with the rotation of the motive power motor. The lower end of the impacting hammer is connected with the one-way clutch component in a separated mode. The one-way clutch component is connected with the support arms through transmission components to control the opening and closing of the support arms. The flow meter is connected under the support mechanism. The regulating actuator is connected under the flow meter and comprises a regulating motor, a regulating adapting piece and a regulating arm. The regulating motor is connected with the regulating arm through the regulating adapting piece and regulates water injection flow through the rotation of the regulating arm.

Description

technical field [0001] The invention relates to the field of layered water injection in highly inclined wells, in particular to a direct-reading measuring and adjusting instrument for layered water injection in highly inclined wells, in particular to a bridge-type concentric direct-reading measuring and adjusting instrument. Background technique [0002] In the layered water injection of highly inclined wells, it is difficult to pull out the plug and connect the downhole instruments in the conventional eccentric layered water injection process, and the measurement and adjustment work cannot be carried out smoothly. Taking advantage of the characteristics of easy docking of concentric strings in highly deviated wells, combined with the advantages of bridge-type eccentric water injection to provide auxiliary flow channels, the bridge-type concentric water distribution technology is more suitable for highly deviated wells to achieve layered water injection and layered testing. ...

AI Technical Summary

Problems solved by technology

[0003] The current dispensing process based on the principle of concentricity can only test the flow rate of a single layer by the method of decline, and cannot directly test the flow of a single layer

This method can guarantee a certain test accuracy for water injection wells with a large single-layer injection volume, but for the case of a small single-layer injection volume, such as within 30m3 / d, the test error is often unacceptable

At the same time, the current concentric measuring and adjusting instrument is mainly used for direct, easy to lift, does not have a guiding function, and its application in high-inclination wells is limited.

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