CN204924840U - Coarse measuring device in rock core crack - Google Patents
Coarse measuring device in rock core crack Download PDFInfo
- Publication number
- CN204924840U CN204924840U CN201520747234.2U CN201520747234U CN204924840U CN 204924840 U CN204924840 U CN 204924840U CN 201520747234 U CN201520747234 U CN 201520747234U CN 204924840 U CN204924840 U CN 204924840U
- Authority
- CN
- China
- Prior art keywords
- constant voltage
- rock core
- voltage cylinder
- thick bamboo
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of oil gas field, mineral exploitation and specifically relates to a coarse measuring device in rock core crack. Including unable adjustment base, core barrel, fixed bolster, a main constant voltage section of thick bamboo, an inferior constant voltage section of thick bamboo, air duct, piston, gypsum post, gypsum post screw, rock core screw, rock core, pivot, gas injection hole, gas switch valve, motor, unable adjustment base be connected through pivot and core barrel, the core barrel rigid coupling in the pivot, an inferior constant voltage section of thick bamboo pass through the air duct and be connected with a main constant voltage section of thick bamboo, gas switch valve rigid coupling in air duct, the gypsum post screw the screw and connect soon on an inferior constant voltage section of thick bamboo, an inferior constant voltage section of thick bamboo pass through the fixed bolster rigid coupling on unable adjustment base. It has overcome the unable accurate drawback of assesing fissured relative roughness of traditional approach.
Description
Technical field
The utility model relates to oil gas field, mineral exploration and exploitation field, especially a kind of rock core crack roughness measuring device.
Background technology
Rock fracture surface is hackly, and in oil gas field, mineral exploration and exploitation process, crack degree of roughness directly affects the effect that rock mass itself supports permeability, is also one of important parameter calculating mining area quality of surrounding rock index simultaneously.Roughness explains the important parameter of rock fracture mechanics and seepage characteristic, and its stress sensitivity of the crack of different roughness also makes a big difference, and under low closure stress condition, roughness fracture flow conductivity has a great impact.In the rock mass of difference group structure, different lithology, the roughness relative size in crack is often difficult to accurately determine.Especially tension gash, surface is very uneven, and its roughness difficulty of Measurement accuracy is large, and traditional survey instrument ruler, miniature dip stick etc. have all been difficult to, and this have impact on the application of crack roughness in oil gas field, mineral exploration and exploitation field greatly.
Utility model content
The utility model is intended to solve the problem, and provides a kind of rock core crack roughness measuring device, and which overcome the drawback that classic method accurately cannot evaluate the relative roughness in crack, its technical scheme adopted is as follows:
A kind of rock core crack roughness measuring device, comprise firm banking, core container, fixed support, main constant voltage cylinder, secondary constant voltage cylinder, wireway, piston, gypsum column, gypsum column screwing screw, rock core screwing screw, rock core, rotating shaft, injecting hole, gas open-close valve, motor, described motor is installed on firm banking, described firm banking is connected with core container by rotating shaft, described core container is fixed in rotating shaft, described secondary constant voltage cylinder is connected with main constant voltage cylinder by wireway, described gas open-close valve is fixed in wireway, described gypsum column screwing screw is rotatably connected on time constant voltage cylinder, described secondary constant voltage cylinder is fixed on firm banking by fixed support.
On technique scheme basis, described gypsum column is positioned at the below of piston, is fixed by gypsum column screwing screw.
On technique scheme basis, described piston can move up and down in secondary constant voltage cylinder, is connected between piston with secondary constant voltage cylinder for airtight.
On technique scheme basis, described rock core screwing screw is rotatably connected on core container.
The utility model tool has the following advantages: reasonable in design, and the roughness in energy exact evaluation rock core crack, is applicable to the measurement of various cracks roughness, and measurement result is accurate, swift to operate, easy to learn.
Accompanying drawing explanation
Accompanying drawing is perspective view of the present utility model;
In figure: 1. firm banking, 2. core container, 3. fixed support, 4. main constant voltage cylinder, 5. time constant voltage cylinder, 6. wireway, 7. piston, 8. gypsum column, 9. gypsum column screwing screw, 10. rock core screwing screw, 11. rock cores, 12. rotating shafts, 13. injecting holes, 14. gas open-close valves, 15. motors.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in accompanying drawing, a kind of rock core crack roughness measuring device, comprise firm banking 1, core container 2, fixed support 3, main constant voltage cylinder 4, secondary constant voltage cylinder 5, wireway 6, piston 7, gypsum column 8, gypsum column screwing screw 9, rock core screwing screw 10, rock core 11, rotating shaft 12, injecting hole 13, gas open-close valve 14, motor 15, described motor 15 is installed on firm banking 1, described firm banking 1 is connected with core container 2 by rotating shaft 12, described core container 2 is fixed in rotating shaft 12, described secondary constant voltage cylinder 5 is connected with main constant voltage cylinder 4 by wireway 6, described gas open-close valve 14 is fixed in wireway 6, described gypsum column screwing screw 9 is rotatably connected on time constant voltage cylinder 5, described secondary constant voltage cylinder 5 is fixed on firm banking 1 by fixed support 3.
Preferably, described gypsum column 8 is positioned at the below of piston 7, is fixed by gypsum column screwing screw 9.
Preferably, described piston 7 can move up and down in secondary constant voltage cylinder 5, and be connected for airtight between piston 7 with secondary constant voltage cylinder 5, when gas open-close valve 14 is opened, the pressure between secondary constant voltage cylinder 5 with main constant voltage cylinder 4 is equal.
Preferably, described rock core screwing screw 10 is rotatably connected on core container 2, and rock core 11 can be made to be fixed on core container 2.
In use, first cut into cylindrical by the rock core with fracture plane, diameter is slightly less than core container 2, is fixed in core container 2 by rock core screwing screw 10, and fracture plane upward, relative with gypsum column 8.Measuring gypsum column 8, to put into weight before time constant voltage cylinder 5 be m
1, then gypsum column 8 is put into bottom secondary constant voltage cylinder 5.Close gas open-close valve 14, inject main constant voltage cylinder 4 from injecting hole 13, make have enough air pressure to promote gypsum column 8 in main constant voltage cylinder 4, then open gas open-close valve 14, gypsum column 8 contacts with the fracture plane of rock core 11 end face.Start the motor 15 in firm banking 1, after running specific time t, disable motor 15, takes out gypsum column 8, and the weight weighing the rear gypsum column 8 of experiment is m
2, can (m be used
1-m
2) representing the roughness of this fracture plane, numerical value is larger, represents that its roughness is larger; Otherwise, represent that roughness is less.
Under the prerequisite that main constant voltage cylinder 4 internal gas pressure is consistent, repeat the measurement that above-mentioned steps can realize different cracks roughness, and then realize the contrast of different cracks roughness.
Be illustrated the utility model by way of example above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.
Claims (2)
1. a rock core crack roughness measuring device, by firm banking (1), core container (2), fixed support (3), main constant voltage cylinder (4), secondary constant voltage cylinder (5), wireway (6), piston (7), gypsum column (8), gypsum column screwing screw (9), rock core screwing screw (10), rock core (11), rotating shaft (12), injecting hole (13), gas open-close valve (14), motor (15) forms, described motor (15) is installed on firm banking (1), described firm banking (1) is connected with core container (2) by rotating shaft (12), described core container (2) is fixed in rotating shaft (12), described secondary constant voltage cylinder (5) is connected with main constant voltage cylinder (4) by wireway (6), described gas open-close valve (14) is fixed in wireway (6), described gypsum column screwing screw (9) is rotatably connected on time constant voltage cylinder (5), described secondary constant voltage cylinder (5) is fixed on firm banking (1) by fixed support (3), described gypsum column (8) is positioned at the below of piston (7), fixed by gypsum column screwing screw (9), described rock core screwing screw (10) is rotatably connected on core container (2).
2. a kind of rock core crack according to claim 1 roughness measuring device, it is characterized in that: described piston (7) can move up and down in secondary constant voltage cylinder (5), be connected for airtight between piston (7) with time constant voltage cylinder (5), when gas open-close valve (14) is opened, the pressure between secondary constant voltage cylinder (5) with main constant voltage cylinder (4) is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747234.2U CN204924840U (en) | 2015-09-24 | 2015-09-24 | Coarse measuring device in rock core crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747234.2U CN204924840U (en) | 2015-09-24 | 2015-09-24 | Coarse measuring device in rock core crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204924840U true CN204924840U (en) | 2015-12-30 |
Family
ID=54973956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520747234.2U Expired - Fee Related CN204924840U (en) | 2015-09-24 | 2015-09-24 | Coarse measuring device in rock core crack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204924840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896004A (en) * | 2018-08-01 | 2018-11-27 | 刘敬寿 | A kind of fracture surface roughness anisotropy characterizing method |
-
2015
- 2015-09-24 CN CN201520747234.2U patent/CN204924840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896004A (en) * | 2018-08-01 | 2018-11-27 | 刘敬寿 | A kind of fracture surface roughness anisotropy characterizing method |
| CN108896004B (en) * | 2018-08-01 | 2020-03-20 | 中国石油大学(华东) | Crack surface roughness anisotropy characterization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |