Flow measurement tool for small section

Abstract

The invention discloses a flow measurement tool for a small section, which comprises a central pipe (1), a flow dividing head (2) and an outer ring pipe (3), wherein the end part of the central pipe (1) is provided with a circular baffle plate (4), the flow dividing head (2) is sleeved outside the central pipe (1) at the back of the baffle plate (4), the outer circumference of the end part of the outer ring pipe (3) is provided with an annular check ring (5), the outer ring pipe (3) is sleeved outside the central pipe (1) at the back of the flow dividing head (2), the baffle plate (4) is provided with axial through holes A (10) along a circumferential direction in an evenly distributed way, axial through holes B (11) are evenly distributed on the flow dividing head (2), axial through holes C (12) are evenly distributed on the check ring (5) along a circumferential direction, a flow dividing part of the flow dividing head (2) is provided with radial through holes A (13) along a circumferential direction in an evenly distributed way, and the central pipe (1) is provided with radial through holes B (14) along a circumferential direction in an evenly distributed way. The flow measurement tool for the small section has the following beneficial effects that: the detection of the flow rate of a random small section of a shaft is realized; the flow measurement tool for the small section has the function of flow measurement in a flow dividing way; and moreover, the structure is simple, the cost is low, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of diverting flow measuring devices, in particular to small-section flow measuring tools. Background technique [0002] In the prior art, pipeline flow measuring devices mostly measure the total flow in the pipeline, and in order to measure the flow of the pipeline economically and avoid the high cost of directly manufacturing large-diameter flowmeters, the large-diameter flow meter to be measured is usually used On the pipeline, connect a small-diameter pipeline in parallel. According to the principle of fluid diversion, the flow rate of the large-diameter pipeline is related to the flow rate of the parallel-connected small-diameter pipeline. The flow rate of the pipeline is used to calculate the flow rate of the large-diameter pipeline to be tested. [0003] In the process of simulating oil reservoir development or actual production, in order to better monitor the working conditions of different sections ...

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Problems solved by technology

[0003] In the process of simulating oil reservoir development or actual production, in order to better monitor the working conditions of different sections of the wellbore, it is necessary to monitor the flow rate of a certain length of the wellbore in the wellbore, but the existing flow measurement device can only measure the flow rate in the pipeline. The total flow rate of the wellbore does not have the function of detecting the flow rate of a small section of the wellbore without affecting the overall working condition of the wellbore, which cannot meet the requirements of experiments or construction

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