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Oil saturation monitoring method based on ultraviolet spectrum micro oil displacement simulation experiment

A technology of ultraviolet spectroscopy and simulation experiments, applied in the field of oil saturation monitoring based on ultraviolet spectroscopy microscopic oil displacement simulation experiments, can solve the problems of difficult and accurate monitoring of microscopic displacement experiments, and achieve the effect of improving efficiency

Pending Publication Date: 2018-08-31
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current microscopic displacement experiment is difficult to monitor accurately, and to provide a means of quantitative monitoring

Method used

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  • Oil saturation monitoring method based on ultraviolet spectrum micro oil displacement simulation experiment
  • Oil saturation monitoring method based on ultraviolet spectrum micro oil displacement simulation experiment
  • Oil saturation monitoring method based on ultraviolet spectrum micro oil displacement simulation experiment

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] Such as Figure 1~2 As shown, the experimental monitoring platform used in the oil saturation monitoring method based on the ultraviolet spectrum microscopic oil displacement simulation experiment includes an object stage 1 with an automatic control system, a microscopic displacement experimental device 2, an ultraviolet spectrometer 3 with transmitting and receiving functions, and a computer. Software analysis system 4; the described stage 1 with the automatic control system is driven by the automatic motor 1a, and is connected with the numerical control module 1b, which can realize the left and right movement and front and rear expansion and contraction of the platform, and complete the scanning process by carrying the rock slice 2c; the described The stage 1 with an automatic control system also includes a support structure 1c that has...

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Abstract

The invention belongs to the technical field of petroleum exploration and development, and particularly relates to an oil saturation monitoring method based on an ultraviolet spectrum micro oil displacement simulation experiment. The spectrum acquisition of the microscopic region is carried out by using an ultraviolet spectrometer with transmitting and receiving functions; an automatic control system is used, a telescopic and movable stage driven by a full-automatic self-control motor is used, the whole area is scanned by a simulated splice, and the spectral characteristics of all micro-areasof the rock splice on a certain time point; the oil saturation value of the micro-area is obtained through spectral image analysis; The oil-water dynamic monitoring in displacement process of the whole rock slice is realized by analyzing the oil saturation of different time points and different positions. The method is mainly used for the mechanism of micro water oil displacement in the petroleumindustry, improving the verification of the oil recovery efficiency technology effect, and the like, and has the advantages of high efficiency, capability of quantitative representation of the oil-water dynamic process in the micro oil displacement experiment and the like.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploration and development, and in particular relates to an oil saturation monitoring method based on an ultraviolet spectrum microcosmic oil displacement simulation experiment. Background technique [0002] Microscopic oil displacement experiments can provide a strong basis for enhancing oil recovery. For the microscopic oil displacement experiment, the difficulty lies in finding out the fluid distribution and its dynamic change process in the pores during the oil displacement process. At present, methods such as visual observation and electrical measurement are generally used for analysis in displacement experiments. The former can only be used for qualitative analysis, and light oil and water without obvious appearance differences cannot be distinguished. The latter requires laying a large number of electrodes. Because it is too complex, it is difficult to realize the measurement of the who...

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Application Information

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IPC IPC(8): E21B43/20E21B47/002E21B47/00
CPCE21B43/20E21B47/00E21B47/002Y02A10/40
Inventor 苏彦春康凯申春生罗宪波刘彦成尹太举李廷礼徐中波汪利兵刘超张兴强向祥恩
Owner CHINA NAT OFFSHORE OIL CORP
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