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Distributed two-dimensional fluid sensor

A distributed and temperature sensor technology, applied in the direction of converting sensor output, mining fluid, liquid/fluid solid measurement, etc., can solve problems such as inability to calculate

Inactive Publication Date: 2018-01-26
ZENITH OILFIELD TECHNOLOGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fluids are homogeneously mixed, i.e. become emulsions, as can happen in high energy wells, then there will be no interfaces between the fluids as if there were no reflections and thus no calculations

Method used

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  • Distributed two-dimensional fluid sensor
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  • Distributed two-dimensional fluid sensor

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Embodiment Construction

[0064] To get started, please refer to figure 1 (a), (b) and (c), the figures show an elongated structure used in a fluid measurement system according to an embodiment of the present invention, that is, a cable, generally indicated by reference numeral 10 . The cable 10 includes a helical core 12 wound on a high temperature bushing 14 and a stretchable heater core element 16 surrounded by a high temperature resistant sheath 18 . An optical fiber temperature sensor array 20 spirally surrounds the main heater 16 and the transmission line helical core 12, and is embedded in the outer layer 18. The sensor array 20 is, for example, a 1 / 8 inch OD tube-sealed optical fiber temperature probe, ground return cable 22 and data communication line 24. The cables are sealed in a housing 18 . The data communication line 24 can be a single wire, a twisted pair or a coaxial cable, and can also be an optical fiber line that provides high-speed data transmission.

[0065] The heater core 16 m...

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PUM

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Abstract

A fluid measurement system and method for distributed measurement of fluid type and fluid velocity in a wellbore, pipeline or other conduit with fluid in motion. Measurements are accomplished by immersing one or more cables with successive sampling sections in the fluid and monitoring the cooling effect on the sampling sections along the cable and the response to high frequency pulses injected into each sampling section. Then, a probabilistic model is used to determine the distribution rate and fluid type along the pipeline.

Description

technical field [0001] The present invention relates to fluid measurement techniques in the oil and gas industry, and more particularly, but not exclusively, to measurement systems and methods for measuring mixed fluid composition and flow rate in moving fluid mixtures present in pipelines, such as wellbores and pipelines. Background technique [0002] The oil and gas industry relies heavily on wellbore measurement technology to provide information on what is actually happening deep in the wellbore. Many surveys are performed prior to the production of oil and gas, including seismic, rock porosity, water content and microseismic. However, there are few such methods that give broad measurements of well behavior over the entire length of the wellbore, especially while the wellbore is producing. [0003] Point pressure and temperature sensors have been used routinely since the 1940s; today, production logging tools are also commonly used. In the oil and gas industry, it is ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/74G01N25/18E21B47/00E21B47/10G01F1/688G01F23/284G01F25/00G01N27/02G01D5/26G01K11/32E21B47/12G01R27/26
CPCG01F1/6884G01F23/284G01N27/221E21B43/2401G01D5/35364G01D5/35367G01F1/74E21B47/103E21B47/135G01F25/10G01F1/68G01N25/18G01N27/02G01N33/2823
Inventor 大卫·瑟达·香克斯
Owner ZENITH OILFIELD TECHNOLOGY LTD