Underground flow collection type ultrasonic wave Doppler flow-moisture content meter

A Doppler flow and ultrasonic technology, which is applied in measurement, wellbore/well components, earthwork drilling and production, etc., can solve the problem that the flowmeter cannot realize fluid flow measurement, and achieve the effect of avoiding pooling

Inactive Publication Date: 2014-09-24
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the problem that the existing flowmeters in the background technology cannot realize fluid flow measurement under two-phase and three-phase conditions, and provides an underground flow-collecting ultrasonic Doppler flow-water content meter

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  • Underground flow collection type ultrasonic wave Doppler flow-moisture content meter
  • Underground flow collection type ultrasonic wave Doppler flow-moisture content meter
  • Underground flow collection type ultrasonic wave Doppler flow-moisture content meter

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] as attached figure 1 As shown, the downhole flow-collecting type ultrasonic multi-instrument Puller flow-water content meter includes a collector body 9 and a transmitting-receiving integrated ultrasonic probe 1, and the upper end of the collector body 9 is provided with a liquid outlet 4 , the lower end of the current collector main body 9 is connected to the sliding sleeve 7 and the driving device 8 in turn, the upper end of the current collector main body at the lower part of the liquid outlet 4 and the sliding sleeve 7 are connected with a current collecting umbrella 6, and the middle part of the current collector main body 9 is provided with a liquid inlet 5; the ultrasonic probe 1 is installed on the upper end of the liquid outlet 4; the end face of the ultrasonic probe 1 has a receiving surface 2 and a transmitting surface 3 respectively, and the receiving sur...

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Abstract

The invention relates to an underground flow collection type ultrasonic wave Doppler flow-moisture content meter. The problem that the fluid flow cannot be measured by the existing flowmeter under two phase and three phase conditions is mainly solved. The underground flow collection type ultrasonic wave Doppler flow-moisture content meter is characterized in that an ultrasonic probe (1) is mounted on the upper end of a liquid outlet (4); the end faces of the ultrasonic probe (1) are respectively a receiving face (2) and an emitting face (3); the axial included angle a<o> between the emitting face and the ultrasonic probe (1) is 70 degrees and 80 degrees; the axial included angle b<o> between the receiving face and the ultrasonic probe (1) is 80 degrees and 90 degrees. The underground flow collection type ultrasonic wave Doppler flow-moisture content meter is capable of measuring the fluid flow under the two phase and three phase conditions.

Description

technical field [0001] The invention relates to the technical field of oil field production logging, in particular to a downhole flow-collecting ultrasonic Doppler flow-water ratio meter. Background technique: [0002] At present, the common method of oil field production profile logging is to determine the oil, gas and water production of each layer downhole by measuring the total flow rate and the holdup of each phase. At present, the flowmeters that measure the total flow are mainly turbine flowmeters. From the perspective of measurement principle, the flow expression of the turbine flowmeter is a function of fluid parameters such as density and viscosity. Under the three-phase conditions of oil, gas and water, there are many uncertainties in the response law of the turbine flowmeter, which has a significant impact on the accuracy of the measurement results. use. At the same time, the sand in the well and the iron filings in the fluid also seriously affect the use of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00
Inventor 庄海军周家强袁智惠刘慧东刘宪伟贲亮吴恩明李楠张勇余
Owner PETROCHINA CO LTD
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