CN103163134A - Coal reservoir fracture observation submicroscopic analysis technology - Google Patents
Coal reservoir fracture observation submicroscopic analysis technology Download PDFInfo
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- CN103163134A CN103163134A CN2013100511799A CN201310051179A CN103163134A CN 103163134 A CN103163134 A CN 103163134A CN 2013100511799 A CN2013100511799 A CN 2013100511799A CN 201310051179 A CN201310051179 A CN 201310051179A CN 103163134 A CN103163134 A CN 103163134A
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Abstract
The invention discloses coal reservoir fracture observation submicroscopic analysis technology which is used for observing fractures of coalbed methane reservoir stratums. The technology includes preparing a lump coal polished section. The lump coal polished section is photographed through a professional camera. The photographed pictures are numbered according to the sequence and stored. And then, the pictures are partially enlarged in a computer and the fractures are counted. The professional camera is arranged on a fixed support and is aligned with the lump coal polished section, and a fixed focus macro lens is installed on the camera. A reference proportional scale is placed next to the lump coal polished section, and the lump coal polished section and the reference proportional scale are placed in the same picture in the photographing process. The pictures of the lump coal polished section are opened through image editing software in the computer, and then the positions with the fractures in the pictures are marked and recorded. Compared with the existing coal reservoir naked-eye analysis technology and the microscopic analysis technology, the coal reservoir fracture observation submicroscopic analysis technology is capable of carrying out submicroscopic analysis on characteristics which can not be analyzed through naked eyes and a microscope, and is capable of improving coal reservoir observation efficiency, reducing manpower cost and increasing observation reliability.
Description
Technical field
The present invention relates to a kind of coalbed gas reservoirs crack observation technology, especially a kind of coal seam reservoirs crack observation submicroscopic analysis technology.
Background technology
At present, the coal seam reservoirs crack is divided into macroscopical crack and micro-crack two classes, and the micro-crack observation technology is mainly microscopy, relies on microscope and observes.It observes the visual field small, and under low power lens, the general diameter of the observation ken is below 5mm, and under high power lens, the general diameter of the observation ken is below 2.2mm.The macroscopic view crack is mainly by range estimation, and it observes the visual field small large, and small-sized crack resolution characteristic is relatively poor.Yet the extension of the microfissure system of coal seam reservoirs is greater than more than tens times of this ken usually, so, microfissure statistical magnitude, bearing of trend and expanded range difficulty to the coal seam reservoirs mating plate under mirror are larger, and the visual inspection of coal mating plate is subjected to the impact of coal self character and the restriction of individual eyesight condition, and quantification also has larger difficulty.
Summary of the invention
The small-sized crack of naked-eye observation resolution characteristic is relatively poor in order to solve in coal seam reservoirs crack observation, the inconvenience of microscopic fracture statistic, the low problem of coal seam reservoirs crack observed efficiency, the invention provides the coal seam reservoirs crack observation submicroscopic analysis technology that a kind of coal seam reservoirs crack quantification is simple and easy, continuous identification is convenient and the crack observed efficiency is high.
Technical matters to be solved by this invention is achieved through the following technical solutions:
A kind of coal seam reservoirs crack observation submicroscopic analysis technology comprises the preparation of lump coal mating plate, and described lump coal mating plate is taken by mm professional camera special, and the photo of taking is numbered storage in order, and comparison film is local on computers afterwards amplifies and adds up the crack.
Described lump coal mating plate is relative with mm professional camera special to be installed in taking on worktable, and the shooting background of described lump coal mating plate is pure color and has contrast with lump coal mating plate color.
Described mm professional camera special is placed in to aim at the lump coal mating plate on fixed support and install and focuses micro-lens.
Described mm professional camera special is with the single anti-digital camera of the high pixel of cable release.
Described lump coal mating plate is other to be placed with reference to engineer's scale, is arranged in same picture with the lump coal mating plate with reference to engineer's scale during photograph.
Described lump coal mating plate photo is opened with image editing software on computers, and mark is carried out in fissare place in photo, then records.
Described lump coal mating plate shooting angle choose can clear demonstration the angle in crack, and it is reflective to avoid the lump coal mating plate.
The invention has the beneficial effects as follows:
Coal seam reservoirs of the present invention crack observation submicroscopic analysis technology, compare existing coal seam reservoirs naked eyes analytical technology and microscopic analysis technology, can solve all insurmountable submicroscopic analysis features of naked eyes and microscope, can improve the efficient of coal seam reservoirs observation, reduce human cost, increase the reliability of observation.
The naked eyes analytical technology, advantage with the macroscopical coal seam reservoirs of differentiation directly perceived crack, can differentiate fast ken diameter more than 5cm, the coal seam reservoirs fissure system of fracture width more than 1mm, but, below the more complicated ken 5cm of coal seam reservoirs crack contact relation, fracture width is relatively poor less than the small-sized crack resolution characteristic of 1mm, and particularly the resolution characteristic of quantification and spatial composing relations is relatively poor.Compare the naked eyes analytical technology, the present technique method can effectively be identified the submicroscopic (ken diameter 10cm-0.5cm of coal seam reservoirs, fracture width 2mm-0.01mm) feature, the more important thing is, the present invention obviously is being better than the naked eyes analytical technology aspect the spatial composing relations of differentiating the crack and quantification fissure system.
The microscopic analysis technology has enlargement factor large, the characteristics such as microscopic feature clear display.But microscope ken diameter maximum is in the 5mm left and right, observation for the most complicated FOV (Field of View) 5cm-1cm of coal seam reservoirs cranny development can only be carried out respectively independent observation by it being divided into a lot of tiny areas, and such mode makes the Spatial Coupling syntagmatic in coal seam reservoirs crack and quantification statistics are seemed very inconvenient.Compare the microscopic analysis technology, the submicroscopic feature in the coal seam reservoirs crack that the inventive method can identify effectively and continuously that microscope can't observe is differentiated the space contact relation in crack.So be called submicroscopic technology.The above crack of coal seam reservoirs 90% can measure with these conceptions of technology.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is operational flowchart of the present invention.
Embodiment
As shown in Figure 1, lump coal mating plate of the present invention can adopt common mating plate, and the coal mating plate is preferably dimensioned to be stock size: 6*4*1cm, choose and note keeping light face cleaning after mating plate.
Then the coal mating plate is positioned over the brown color substrate scraps of paper, mating plate is other to be selected suitablely for engineer's scale, selects ruler to get final product with reference to engineer's scale.Select the single anti-digital camera of professional high pixel (non-card camera) conveniently to pose for photograph with cable release, and 90mm is installed focuses micro-lens, be placed on three-legged support.
The shooting angle of camera select can clear demonstration the angle in crack, note avoiding coal mating plate reflective (attribute of coal mating plate own is easily reflective), then take, the photo effect note all showing coal mating plate minute surface part and comprise the side with reference to engineer's scale.According to the photo of taking is numbered and deposits, open on computers afterwards the picture of shooting with image editing software, and after carrying out mark in the crack feature of carrying out local enlargement display coal mating plate under the large scale display screen and to the crack, then carry out fracture statistic.
The technology of the present invention is than the naked-eye observation technology, and naked eyes can only observe larger crack, coal mating plate surface, and rimala can't be observed, and the more important thing is that the Spatial Coupling feature between each crack can't be observed.
The technology of the present invention is than the microscopic technology, and microscopy can show the crack of micro scale, but relatively poor to submicroscopic other display effect of level, needs could all show after a plurality of kens combinations, and workload is large, and operation easier is high.Both are comparatively obvious to the contrast of the resolution characteristic in crack, microcosmic show explain can qualitative description the crack, the Spatial Coupling feature between the technology of the present invention can macroscopic view observation each crack.
In a word, the technology of the present invention is effectively replenishing of existing microscopic technology, has enriched the observation method in coal seam reservoirs crack, has promoted operative technique, has increased the degree of reliability of describing the minute fissure Relations Among.
Should be understood that, above-mentioned embodiment of the present invention only is used for exemplary illustration or explains principle of the present invention, and is not construed as limiting the invention.Therefore, in the situation that any modification of making without departing from the spirit and scope of the present invention, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.In addition, claims of the present invention are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (7)
1. a coal seam reservoirs crack observation submicroscopic analysis technology, comprise the preparation of lump coal mating plate, and it is characterized in that: described lump coal mating plate is taken by mm professional camera special, and the photo of taking is numbered storage in order, and comparison film is local on computers afterwards amplifies and adds up the crack.
2. coal seam reservoirs according to claim 1 crack observation submicroscopic analysis technology, it is characterized in that: described lump coal mating plate is relative with mm professional camera special to be installed in taking on worktable, and the shooting background of described lump coal mating plate is pure color and has contrast with lump coal mating plate color.
3. coal seam reservoirs according to claim 1 crack observation submicroscopic analysis technology, it is characterized in that: described mm professional camera special is placed in to aim at the lump coal mating plate on fixed support and install and focuses micro-lens.
4. coal seam reservoirs according to claim 1 crack observation submicroscopic analysis technology is characterized in that: described mm professional camera special is for the single anti-digital camera of the high pixel of cable release.
5. coal seam reservoirs crack observation submicroscopic analysis technology according to claim 1, is characterized in that: place with reference to engineer's scale by described lump coal mating plate, be arranged in same picture with the lump coal mating plate with reference to engineer's scale during photograph.
6. coal seam reservoirs according to claim 1 crack observation submicroscopic analysis technology, it is characterized in that: described lump coal mating plate photo is opened with image editing software on computers, and mark is carried out in fissare place in photo, then records.
7. coal seam reservoirs according to claim 3 crack observation submicroscopic analysis technology is characterized in that: described lump coal mating plate shooting angle choose can clear demonstration the angle in crack, and it is reflective to avoid the lump coal mating plate.
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| CN2013100511799A CN103163134A (en) | 2013-02-16 | 2013-02-16 | Coal reservoir fracture observation submicroscopic analysis technology |
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| CN2013100511799A CN103163134A (en) | 2013-02-16 | 2013-02-16 | Coal reservoir fracture observation submicroscopic analysis technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698333A (en) * | 2014-01-22 | 2014-04-02 | 中国地质大学（北京） | System and method for automatically and quantitatively analyzing coal rock ray plate fracture |
| CN103743742A (en) * | 2013-12-02 | 2014-04-23 | 于景锋 | High-definition scanning observation technology for super-heavy oil sandstone storage layer |
| CN107121040A (en) * | 2017-04-12 | 2017-09-01 | 河南理工大学 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
| CN108303515A (en) * | 2018-01-30 | 2018-07-20 | 河南理工大学 | A kind of underground coal mine organic geochmistry observation statistical method |
| CN108398368A (en) * | 2018-02-23 | 2018-08-14 | 长江水利委员会长江科学院 | A kind of device and method of extraction soil surface crack hole |
| WO2019128015A1 (en) * | 2017-12-29 | 2019-07-04 | 中国矿业大学 | In-situ micro-observation apparatus and method for engineering rock mass microcosmic |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743742A (en) * | 2013-12-02 | 2014-04-23 | 于景锋 | High-definition scanning observation technology for super-heavy oil sandstone storage layer |
| CN103743742B (en) * | 2013-12-02 | 2016-06-01 | 于景锋 | Super-viscous oil sandstone reservoir high definition scanning observation procedure |
| CN103698333A (en) * | 2014-01-22 | 2014-04-02 | 中国地质大学（北京） | System and method for automatically and quantitatively analyzing coal rock ray plate fracture |
| CN103698333B (en) * | 2014-01-22 | 2015-11-18 | 中国地质大学（北京） | A kind of system and method for automatically quantitative analysis coal petrography mating plate crack |
| CN107121040A (en) * | 2017-04-12 | 2017-09-01 | 河南理工大学 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
| CN107121040B (en) * | 2017-04-12 | 2019-06-21 | 河南理工大学 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
| WO2019128015A1 (en) * | 2017-12-29 | 2019-07-04 | 中国矿业大学 | In-situ micro-observation apparatus and method for engineering rock mass microcosmic |
| CN108303515A (en) * | 2018-01-30 | 2018-07-20 | 河南理工大学 | A kind of underground coal mine organic geochmistry observation statistical method |
| CN108398368A (en) * | 2018-02-23 | 2018-08-14 | 长江水利委员会长江科学院 | A kind of device and method of extraction soil surface crack hole |
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Application publication date: 20130619 |