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Method for measuring water in oil-water separation and device for same

An oil-water separation and oil-water technology, which is applied in the field of metering water, can solve the problems of difficult cleaning, low metering accuracy, complex structure, etc., and achieve the effects of easy cleaning, high metering accuracy and low cost.

Inactive Publication Date: 2012-08-15
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the metering device has improved metering accuracy, its structure is relatively complicated, it is not easy to clean, and it focuses on the metering of oil, and after the separation of oil and water, the metering accuracy of water is low

Method used

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  • Method for measuring water in oil-water separation and device for same
  • Method for measuring water in oil-water separation and device for same
  • Method for measuring water in oil-water separation and device for same

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Embodiment Construction

[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0037]The device for measuring water in the oil-water separation proposed by the present invention uses the principle of oil-water density difference to separate, and the device includes: at least two measuring cylinders are arranged in sequence, the upper end of the measuring cylinder is opened as the inlet of the liquid, and the lower end of the measuring cylinder is provided with a base , play a supporting role. The liquid entering the measuring cylinder is separated by the density difference of oil and water in the measuring cylinder to form an upper oil body layer and a lower water layer. A diversion branch pipe is arranged between two adjacent measuring cylinders, the inlet end of the diversion branch pipe communicates with...

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Abstract

The invention discloses a method for measuring water in oil-water separation and a device for the same, wherein the device comprises at least two measuring cylinders which are sequentially arranged, the upper ends of the measuring cylinders are opened, and the lower ends of the measuring cylinders are provided with bases; a flow guide branch tube is arranged between the two adjacent measuring cylinders, the inlet end of one flow guide branch tube is communicated with the upper part of the front measuring cylinder, and the outlet end of the flow guide branch tube extends to the opening of the upper end of the adjacent subsequent measuring cylinder; and the flow guide branch tube is upwards and slantwise connected on the measuring cylinder, and the highest point of the flow guide branch tube is lower than the opening of the upper end of the connected measuring cylinder. The method for measuring the water in the oil-water separation and the device for the same, disclosed by the invention, perform the separation by a principle of oil-water density difference, adequately separate oil and water from an oil-water mixture generated by an indoor oil displacement experiment via the plurality of measuring cylinders which are arranged in parallel and communicated in one direction, and have the advantages of being high in measuring accuracy, simple in structure, low in cost and convenient for cleaning. The method and the device are suitable for performing the oil-water separation on the oil-water mixture generated by the indoor oil displacement experiment for tertiary oil recovery.

Description

technical field [0001] The invention relates to an oil-water separation method and a device, in particular to a method and a device for measuring water in the oil-water separation used in an oil displacement experiment in a tertiary oil recovery chamber. Background technique [0002] In the petroleum industry, the physical simulation oil displacement experiment in the tertiary oil recovery chamber plays an important role in the early stage of the oil field test. At present, the measuring method of oil-water separation in the produced fluid of indoor oil displacement experiment generally adopts measuring cylinder. In the oil-water separation process of core-saturated crude oil, since the produced fluid contains less water and more oil, it is necessary to accurately measure the produced water. However, when measuring with a measuring cylinder, the staff needs to replace the measuring cylinder regularly, the workload is large, the oil and water produced are distributed in each...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B43/34
Inventor 罗锋刘宏生马江张琦曾嘉孙刚李长庆
Owner PETROCHINA CO LTD
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