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Analysing method of rock-fragment fluorescent logging

An analysis method and cuttings technology, which are applied in the fields of electrical/magnetic detection, sound wave re-radiation, and electrical/magnetic exploration for logging records, and can solve problems such as relying on manual operations.

Inactive Publication Date: 2008-06-25
韩永林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the disadvantage that the existing cuttings fluorescence logging can only rely on manual operation, the present invention proposes a technology for cuttings fluorescence logging

Method used

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  • Analysing method of rock-fragment fluorescent logging

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Embodiment Construction

[0008] This embodiment takes cuttings fluorescence mud logging in the 1480m-1481m section of Well Tai 3 in an oilfield as an example.

[0009] In the present embodiment, the ultraviolet light source and the darkroom are replaced with a light box, which is composed of a small box with a plurality of ultraviolet lamps of different frequencies, closed around and only leaving the rock chip sample inlet and outlet and observation hole.

[0010] 1. Install the compiled fluorescent image automatic recognition software in the computer.

[0011] 2. Collect cuttings samples from the 1480m-1481m section of the well, put them into a light box, and turn on the fluorescent lamp with a wavelength of 330mm (you can turn on fluorescent lamps with different wavelengths in turn according to your needs, and take a picture every time you turn on).

[0012] 3. Use a digital camera to take a fluorescent image of the cuttings through the observation hole.

[0013] 4. Import the image to your compute...

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Abstract

The invention discloses a bore meal fluorescent logging analyzing method of oil layer exploratory development technology. In order to conquer the fault of only can be manual operated of current bore meal fluorescent logging analysis, the invention stores the bore meal fluorescent images, which is irradiated by ultraviolet radiation, in digital style, then analyzes the pixel color and intensity of the digital images by data processor, based on the ratio of different color and intensity fluorescent pixel of the whole image, analyzes the bore meal fluorescent grade, content after ultraviolet radiation irradiation automatically, so judge oil content automatically, and store the result in memory. The invention identifies and statistics the fluorescent pixel of bore meal by data processor, to insure oil content of the bore meal, and achieves automatic and quantify bore meal fluorescent logging analysis, so the automation of whole bore meal logging technology is impulsed.

Description

(1) Technical field: [0001] The invention relates to oil layer exploration and development technology, and is an analysis method of cuttings fluorescence mud logging. (two) background technology: [0002] At present, the cuttings fluorescence logging technology still adopts the traditional method in the drilling process of petroleum exploration and development, and a series of processes including sampling, fluorescence illumination, cleaning, bright drying or drying are all done manually, and it is difficult to realize automatic control. One of the main reasons is that the cuttings fluorescence logging technology (fluorescence) has not been automatically controlled. [0003] In the prior art, it is called fluorescence mud logging to determine the oiliness of the formation where the cuttings are located by measuring the fluorescent color, intensity and proportion of fluorescent cuttings in the cuttings sample under ultraviolet irradiation. At present, there are mainly two me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/18G01V3/38
Inventor 韩永林解彩丽韩永建
Owner 韩永林