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Tipping bucket flowmeter

A flow meter and flow measurement technology, which is applied in the field of tipping bucket flow meters, can solve problems such as decreased measurement accuracy, gas-liquid instability, and large measurement errors, and achieve the effects of good measurement accuracy, simple structure, and low cost

Inactive Publication Date: 2015-04-22
兰州科庆仪器仪表有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing oil well metering technology, there are metering separators, tipping bucket flowmeters, multiphase flowmeters or oil and gas metering devices, etc., which have a common feature of relatively large volume, mainly for liquid production greater than 2 cubic meters per hour For oil well metering, the gas and liquid from the oil well are required to be relatively stable, otherwise the metering accuracy will be greatly reduced; for oil wells with unstable, discontinuous gas and liquid production, and relatively low liquid production, the metering cannot even be completed or the metering error is relatively large

Method used

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Experimental program
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Embodiment 1

[0026] Such as Figure 1-3 As shown, the gas-liquid separator 1 is a vertical spiral structure. The medium to be measured enters a gas-liquid separator 1 from the inlet, and its casing 101 is a vertical cylinder. The upper part of the casing 101 is provided with a medium inlet 102, and the medium inlet 102 is connected to a spiral centrifugal separator 103 to realize gas-liquid separation. The separated gas flows out along the gas pipeline 104 at the upper part of the housing 101 , and the separated liquid flows out along the liquid pipeline 105 at the lower part of the housing 101 . The gas metering flowmeter 2 is installed in the upper gas pipeline 104 to realize the measurement of the gas flowing through the gas pipeline. The measured gas passes through the gas pipeline buffer tank 3 and then flows into the collection pipeline 7 to be discharged from the metering system. The liquid separated by the gas-liquid separator 1 flows out along the liquid pipeline 105 in the lower...

Embodiment 2

[0028] refer to Figure 4 , Figure 5 , Figure 6 , the structure and implementation of this embodiment are the same as those of Embodiment 1, the difference is that: the liquid pipeline 105 communicates with the liquid inlet 413 of the housing inner chamber of the instrument type tipping bucket metering device 4, and the upper part of the housing inner chamber is fixed with a liquid inlet tank 403, there is a liquid spray slot 404 below the liquid inlet tank 403.

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Abstract

The invention relates to a tipping bucket flowmeter which is characterized in that a shell of a gas-liquid separator is of a vertical type cylinder body, a medium inlet is formed at the upper portion of the shell, a spiral centrifugal separator is connected with the medium inlet, a gas circuit metering flowmeter and a gas circuit buffer tank are connected with a gas circuit pipeline arranged on the upper portion of the shell, a liquid channel arranged at the lower portion of the shell is communicated with an annular liquid inlet channel and a liquid inlet groove arranged in a cavity of a meter type tipping bucket metering device, a long water-jet hole is formed in the lower portion of the liquid inlet groove, a cavity of an upper opening of the tipping bucket is aligned to the long water-jet hole of a liquid inlet pipe, a shell of the meter type tipping bucket metering device is a horizontal type cylinder, a tipping bucket is arranged in the shell, the tipping bucket is fixed on an end cover arranged on one side of the shell through a tipping bucket support, a magnetic induction part is arranged on the end cover, the tipping bucket is composed of two connected cavities with two upper openings, a rotating shaft is arranged in the middle of each side of the tipping bucket, a magnetic induction board which is inlaid with neodymium iron boron magnetic columns is arranged on the rotating shaft, a bearing is connected with the tipping bucket support, a liquid outlet is formed at the lower portion of the shell, the liquid outlet is communicated with a liquid channel buffer tank, and an elbow pipe arranged at the interior exit portion of the liquid channel buffer tank is communicated with a collecting pipeline. According to the tipping bucket flowmeter, metering of discontinuous liquid feeding, unstable liquid feeding, and fierce changing liquid feeding is achieved completely without influencing accuracy.

Description

technical field [0001] The invention relates to a tipping bucket flowmeter, in particular to a tipping bucket mass flowmeter suitable for oil well measurement. Background technique [0002] In the existing oil well metering technology, there are metering separators, tipping bucket flowmeters, multiphase flowmeters or oil and gas metering devices, etc., and their common feature is that their volume is relatively large, mainly for liquid production greater than 2 cubic meters per hour. For oil well metering, the gas and liquid from the oil well are required to be relatively stable, otherwise the metering accuracy will be greatly reduced; for oil wells with unstable, discontinuous gas and liquid production, and relatively low liquid production, the metering cannot even be completed or the metering error is relatively large. Therefore, it is very urgent to develop an oil well metering device suitable for low-production oil wells and with relatively large gas-liquid changes. Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
Inventor 寿焕根潘临
Owner 兰州科庆仪器仪表有限责任公司