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Three-dimensional quantitative fluorescence spectrum total volume integral method

A technology of fluorescence spectrum and integral method, which is applied in the field of geological logging interpretation and evaluation of petroleum geological exploration

Inactive Publication Date: 2011-07-20
中国石油集团川庆钻探工程有限公司长庆录井公司
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Problems solved by technology

The peak method cannot fully quantitatively evaluate the oil concentration in the reservoir, and at the same time cannot quantitatively distinguish the content of various hydrocarbons in the oil and gas layers, which affects the wide application of three-dimensional quantitative fluorescence

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  • Three-dimensional quantitative fluorescence spectrum total volume integral method
  • Three-dimensional quantitative fluorescence spectrum total volume integral method
  • Three-dimensional quantitative fluorescence spectrum total volume integral method

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Embodiment Construction

[0023] Such as figure 1 with figure 2 As shown, the fluorescence analyzer continuously acts on the collected samples from the excitation wavelength of 240nm to the excitation wavelength of 380nm, the fluorescence intensity of the wavelength from 240nm to 480nm is received by the fluorescence analyzer, and the continuous excitation wavelength between 240nm and 380nm is the X block Take the 240nm-480nm continuous receiving wavelength as the Y coordinate, and take the fluorescence intensity (INT) of the 240nm-480nm continuous receiving wavelength as the Z coordinate to establish the excitation wavelength excitation wavelength (EX)-receiving wavelength (EM)-fluorescence intensity ( INT) three-dimensional space system.

[0024] Such as image 3 with Figure 4 As shown, according to the Monte-Carlo principle, random numbers distributed in the three-dimensional space (excitation wavelength 240-380nm, reception wavelength 240-480nm) are randomly generated by the computer, and the...

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Abstract

The invention relates to the technical field of explanation and evaluation of a geological log in petroleum geological exploration, in particular to a three-dimensional quantitative fluorescence spectrum total volume integral method. The method comprises the following steps of: A, continuously applying excitation waves with the wavelengths of between 240 nanometers and 380 nanometers to a collected sample by using a fluorescence analyzer; B, receiving fluorescent light with the wavelengths of between 240 nanometers and 480 nanometers by using the fluorescence analyzer; C, establishing an excitation wavelength-receiving wavelength-fluorescence intensity three-dimensional space system; D, randomly generating random numbers distributed in a three-dimensional space according to a Monte-Carlo principle by using a computer; E, accumulating relative fluorescence intensities corresponding to each random number and accumulating and describing the volume integration values of the sample; and F, calculating an oil concentration value of the sample through a formula shown in the specifications by using the volume integration value of the sample. The invention provides a three-dimensional quantitative fluorescence spectrum total volume integral method which can determine the concentration of a single component fluorescent substance and quantitatively explain and distinguish the contents of various hydrocarbons in an oil-gas zone.

Description

technical field [0001] The invention relates to the technical field of geological logging interpretation and evaluation for petroleum geological exploration, in particular to a three-dimensional quantitative fluorescent spectrum total volume integration method, which is suitable for three-dimensional quantitative fluorescent logging interpretation and evaluation. technical background [0002] At present, the existing quantitative fluorescence analysis method uses the height of the fluorescence peak for quantitative analysis (called peak method). The peak method cannot fully quantitatively evaluate the oil concentration in the reservoir, and at the same time cannot quantitatively distinguish the contents of various hydrocarbons in the oil and gas layers, which affects the wide application of three-dimensional quantitative fluorescence. purpose of invention [0003] The purpose of the present invention is to provide a three-dimensional quantitative fluorescent spectrum tota...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64E21B49/08
Inventor 邵东波王志峰段志强马骏胜邹国亮杨清宇夏守春何为刘璐
Owner 中国石油集团川庆钻探工程有限公司长庆录井公司
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