A land surface wellhead oil, gas and water three-phase water content measuring device

A measuring device, oil-gas-water technology, applied in material resistance and other directions, can solve the problems of measurement accuracy and reliability that are not as good as foreign products, and achieve the effects of small size, improved measurement accuracy, and simple device structure

Active Publication Date: 2020-04-07
YANSHAN UNIV
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  • Abstract
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Problems solved by technology

The development of domestic equipment is mostly based on foreign technology, the measurement accuracy and reliability are not as good as foreign products, and some products are still in the development stage

Method used

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  • A land surface wellhead oil, gas and water three-phase water content measuring device
  • A land surface wellhead oil, gas and water three-phase water content measuring device
  • A land surface wellhead oil, gas and water three-phase water content measuring device

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Embodiment approach

[0043] As an embodiment of the present invention, the device also includes:

[0044] The outlet pipe 10, the annular cavity communicates with the outlet pipe 10 through the exhaust pipe 4, and the discharged gas enters the outlet pipe 10; the mixed-phase measuring pipe 302 communicates with the outlet pipe 10, the The mixed-phase liquid in the mixed-phase measuring tube 302 flows out through the outlet tube 10 .

[0045] Specifically, one end of the inlet pipe 1 is welded to the side wall of the casing 2, the lower end of the casing 2 is welded to the base 23, the upper end of the casing 2 is connected to the outlet pipe 10 through the second flange 21, and the second flange 21 is equipped with a row The gas valve 5 and the wire guide 17 are both connected by sealed threads, the exhaust pipe 4 and the outlet pipe 10 are welded, the exhaust valve 5 discharges the gas in the oil-gas-water mixed fluid in the annular cavity, and the gas enters the outlet through the exhaust pipe 4...

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Abstract

The invention discloses a device for measuring moisture content of three phases of oil, gas and water of a ground wellhead. The device comprises a casing, an exhaust pipe, a measurement pipe and a control system, wherein the side wall of the casing is communicated with an inlet pipe, the measurement pipe is arranged in the casing, a closed annular cavity is formed between the measurement pipe andthe casing and communicated with the exhaust pipe, and an exhaust valve exhausts gas in the annular cavity; the measurement pipe comprises a mixed phase measurement pipe and a whole water measurementpipe, the whole water measurement pipe is provided with a water inlet hole and a first conductivity sensor, and the control system collects output voltage of the first conductivity sensor to obtain first voltage; the mixed phase measurement pipe is provided with a liquid inlet hole and a second conductivity sensor, and the control system collects output voltage of the second conductivity sensor toobtain second voltage; the control system determines the moisture content of a to-be-measured fluid according to the first voltage and the second voltage. The device can measure the moisture contentof the ground wellhead in real time and is simple in structure, low in cost and small in size.

Description

technical field [0001] The invention relates to the technical field of petroleum wellhead parameter measurement, in particular to a device for measuring oil-gas-water three-phase water content at a land surface wellhead. Background technique [0002] In petroleum production, what is extracted from an oil well is a mixed fluid containing petroleum, gas, water and various impurities. Among them, the water phase holdup is an important parameter for the evaluation and measurement of the oil production logging profile. Mining efficiency plays a vital role. At present, most of the land surface wellhead parameter measurements rely on manual periodic sampling and testing, but this traditional method often has disadvantages such as high work intensity, low efficiency, poor real-time performance, discontinuous test data, and many influencing factors. [0003] At present, foreign products have high measurement accuracy and wide application range, but the measurement technology is comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/08
Inventor 孔令富陈基亮孔德明孔维航杨韵桐崔耀耀田小强谢贝贝李军吴伟超郝虎袁丽何大川
Owner YANSHAN UNIV
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