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Gas-liquid two-phase flow measurement method and device for natural gas and condensate oil/water

A technology of flow measurement and natural gas, which is applied in the direction of volume/mass flow generated by mechanical effects, and fluid flow detected by measuring pressure difference, which can solve problems such as flow measurement difficulties and achieve reasonable measurement methods, reliable data, and high measurement accuracy. Effect

Active Publication Date: 2015-10-28
北京杰利阳能源设备制造有限公司
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Problems solved by technology

In the pipeline, the liquid can flow close to the wall as a liquid film, or it can flow as a block, which makes flow measurement more difficult

Method used

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  • Gas-liquid two-phase flow measurement method and device for natural gas and condensate oil/water

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Embodiment Construction

[0036]Based on the actual situation of natural gas production introduced in the background technology, in the process of measuring natural gas flow, we need to consider the influence of condensate oil on the measurement of gas flowmeter, and the flow form of liquid in natural gas. The measurement of natural gas flow should be regarded as It is a gas-liquid two-phase flow measurement problem. For this reason, the present invention proposes the following method and device for measuring the gas-liquid two-phase flow rate of natural gas and condensate oil.

[0037] like figure 1 As shown, the gas-liquid two-phase flow measurement method of natural gas and condensate oil / water of the present invention specifically comprises the following steps:

[0038] Step 1, a U-shaped pipe 1 connected to the measuring pipe 12 is arranged at the entrance of the measuring pipe 12. The diameter of the U-shaped pipe 1 is the same as that of the measuring pipe 12, and its height is 3-5 mm of its ow...

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Abstract

The invention discloses a gas-liquid two-phase flux measurement method and a gas-liquid two-phase flux measurement device of natural gas and condensate gas or water. The gas-liquid two-phase flux measurement device of the natural gas and the condensate gas or water comprises a U-shaped pipe, a needle valve, a temperature transducer and a pressure transducer, wherein a conversed U-shaped pipe is arranged behind the U-shaped pipe, a first flowing rectifier and a first Venturi tube are installed on the conversed U-shaped pipe, a first differential pressure transducer is installed on the first Venturi tube, a second flow rectifier and a second Venturi tube are installed behind the conversed U-shaped pipe, the temperature transducer, the pressure transducer, the first differential pressure transducer and the second differential pressure transducer are respectively connected with a single chip computer which collects information sent by all parts, then calculates flux of the natural gas and condensate oil or condensate water, and is finally communicated with a remote data platform through a wireless data transmission module. The gas-liquid two-phase flux measurement method and the gas-liquid two-phase flux measurement device of the natural gas and the condensate gas or water has the advantages of being capable of effectively solving the problem of measuring the flux of the natural gas mixed by the condensate oil, reasonable and scientific in measurement method, reliable in measurement device and high in measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of petroleum production measurement, in particular to a gas-liquid two-phase flow measurement method and device for natural gas and condensate oil / water. Background technique [0002] In the process of natural gas extraction, water and condensate oil are also extracted at the same time. In order to determine the output of natural gas, understand the oil and gas content of the formation and the change of the formation structure, it is necessary to continuously measure the output natural gas. , and condensate oil and water are produced at the same time, which increases the measurement error of a single natural gas flowmeter. When more condensate oil and water are produced, a single natural gas flowmeter cannot be used. Therefore, when measuring natural gas, the output of condensate oil and water must be considered, that is, the flow measurement of gas-liquid two-phase must be carried out. [0003] There are m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/36
Inventor 张彩萍
Owner 北京杰利阳能源设备制造有限公司
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