CN203849139U - Permeability measuring device capable of improving gas tightness - Google Patents
Permeability measuring device capable of improving gas tightness Download PDFInfo
- Publication number
- CN203849139U CN203849139U CN201420118805.1U CN201420118805U CN203849139U CN 203849139 U CN203849139 U CN 203849139U CN 201420118805 U CN201420118805 U CN 201420118805U CN 203849139 U CN203849139 U CN 203849139U
- Authority
- CN
- China
- Prior art keywords
- pressure head
- truncated cone
- circular truncated
- inverted circular
- main body
- 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 discloses a permeability measuring device capable of improving gas tightness. The permeability measuring device comprises an inverted circular truncated cone pressure head main body, a gas inlet center pipeline, a pressure has gastight ring slot, an inverted circular truncated cone pressure head bottom end, a circumferential groove and a radial groove, a double-horn shaped rubber sleeve, a rock stratum sample, a cone-shaped supporting base, and base gastight ring slots, wherein the upper part of the inverted circular truncated cone pressure head main body is externally connected with a press; the gas inlet center pipeline is axially arranged in the middle of the inverted circular truncated cone pressure head main body, and can be externally connected with a high-pressure gas interface and a control valve; a plurality of pressure head gastight ring slots are arranged on the inverted circular truncated cone pressure head main body; the circumferential groove and the radial groove are arranged at the bottom end of the inverted circular truncated cone pressure head; the inverted circular truncated cone pressure head main body can be tightly sleeved into an upper horn mouth of the double-horn shaped rubber sleeve; the middle part of the rubber sleeve is cylindrical for covering the cylindrical rock stratum sample; the cone-shaped supporting base with the plurality of base gastight ring slots is also tightly sleeved by the lower horn mouth of the rubber sleeve. The permeability measuring device disclosed by the utility model can realize testing permeability of a low permeability medium, and also can keep high pressure gas sealing in a long-time test process.
Description
Technical field
The one that relates to the utility model can improve bubble-tight survey and ooze device.
Background technology
Rock salt, owing to thering is good croop property, low-permeability and self-recovery, by the universally acknowledged perfect medium for petroleum gas deposit, once but underground natural gas storage leakage, by lives and properties being caused to huge threat, inestimable especially on the impact of environment.Underground natural gas storage interlayer perviousness is the key of China's stratiform rock salt underground gas storage feasibility study.If the perviousness of mud stone-rock salt interface is larger, this molten chamber may just be not suitable for building into underground natural gas storage, therefore need to test the perviousness of mud stone-rock salt interface, while test, the impermeability of essential raising proving installation and measuring air pressure is stable.
Summary of the invention
The purpose of this utility model is to provide one and can improves bubble-tight survey and ooze device.
One can improve bubble-tight survey and ooze device, comprise rounding frustum pressure head body (1), air inlet central tube (8), the airtight annular groove of pressure head (9), rounding frustum pressure head bottom (2), circumferential groove (6) and radial groove (7), double horn shape gum cover (3), rock stratum sample (4), conical base for supporting (5), the airtight annular groove of base (10), it is characterized in that, at the external pressing machine in rounding frustum pressure head body (1) top, rounding frustum pressure head body (1) intermediate shaft is to there being an air inlet central tube (8), can external high pressure gas interface and operation valve, on rounding frustum pressure head body (1), there is the airtight annular groove of multiple tracks pressure head (9), on rounding frustum pressure head bottom (2), there are circumferential groove (6) and radial groove (7), rounding frustum pressure head body (1) can closely be inserted in the upper hydraucone of double horn shape gum cover (3), the middle part of gum cover is cylindric, to pack into columned rock stratum style (4), under gum cover, hydraucone also will closely be enclosed within on the conical base for supporting (5) with the airtight annular groove of multiple tracks base (10).When test, can improve bubble-tight survey oozes device and puts into test machine, give again the pressurization of rounding frustum pressure head body fixing, survey is oozed gases at high pressure and is entered air inlet central tube (8) through high pressure gas interface and operation valve, gases at high pressure arrive rounding frustum pressure head bottom (2), form uniform admission pressure through circumferential groove (6) and radial groove (7) in the upper surface of rock stratum sample (4), and be delivered on sample, check the permeability of rock stratum style, and double horn shape gum cover and rounding frustum pressure head and pyramid type base for supporting closely cooperate, and the useful effect of airtight annular groove, just realize the test to least permeable medium permeability, and the sealing that can keep long-time process of the test mesohigh gas.
Beneficial effect: when use, dry rock stratum style is put into double horn shape gum cover, rounding frustum pressure head body is closely enclosed within the upper end of double horn shape gum cover, the lower end of double horn shape gum cover is closely enclosed within on conical base for supporting, gases at high pressure form uniform admission pressure through circumferential groove and radial groove in sample upper surface, rock stratum like this, efficiently solve the long-time process of the test mesohigh air seal problem of gas steady state method test least permeable medium permeability.
Brief description of the drawings
To be that the utility model is a kind of improve a kind of knot schematic diagram that improves bubble-tight inverted round stage pressure head of structure that device is oozed in bubble-tight survey to Fig. 1.
Fig. 2 is a kind of rounding frustum pressure head bottom circumferential groove that bubble-tight survey oozes device and structural representation of a kind of inverted round stage pressure head body that improves bubble-tight inverted round stage pressure head of radial groove of improving of the utility model.
The explanation of mark in figure: rounding frustum pressure head body 1, rounding frustum pressure head bottom 2, double horn shape gum cover 3, soil sample rock stratum style 34, gum cover 4, the conical base for supporting 5 of company's ground cavity, circumferential groove 6, radial groove 7, central tube 8, the airtight annular groove 9 of pressure head, the airtight annular groove 10 of base.
Embodiment
One shown in Fig. 1 can improve bubble-tight survey and ooze device and can improve bubble-tight inverted round stage pressure head by rounding frustum pressure head body 1, rounding frustum pressure head bottom 2, soil sample 3, double horn shape gum cover 43, rock stratum style 4, connect the conical base for supporting 5 of ground cavity, circumferential groove 6 and radial groove 7, central tube 8, the airtight annular groove 9 of pressure head, the airtight annular groove 10 of base forms, on rounding frustum pressure head body 1, there is the airtight annular groove 9 of multiple tracks pressure head, on rounding frustum pressure head bottom 2, there are circumferential groove 6 and radial groove 7, in the middle of rounding frustum pressure head body 1, there is axial central conduit 8, double horn shape has gum cover 43, upper hydraucone be closely enclosed within on rounding frustum pressure head body 1, lower hydraucone closely entangles the conical base for supporting 5 of the airtight annular groove 10 of multiple tracks base, in the intermediate cylindrical part of double horn shape gum cover 43, there is soil sample cover rock stratum style 34, the ground of company cavity 5 is arranged at gum cover 4 bottoms.
When use, dry soil sample 3 rock stratum styles 4 are put into double horn shape gum cover 43, rounding frustum pressure head body 1 is covered and is closely being enclosed within on double horn shape gum cover 43, double horn shape gum cover bottom is closely enclosed within conical base for supporting 5, after pressurization is fixing, open high pressure gas control valve, gases at high pressure are through central tube, arrive rounding frustum pressure head bottom, form uniform admission pressure through circumferential groove 6 and radial groove 7 in sample upper surface, rock stratum, and be delivered on sample, realize the permeability that detects soil sample 3 rock stratum styles 4.
Claims (1)
1. one kind can be improved bubble-tight survey and oozes device, comprise rounding frustum pressure head body, the airtight annular groove of pressure head, rounding frustum pressure head bottom, circumferential groove and radial groove, soil rock stratum style sample, double horn shape gum cover, connect the conical base for supporting of ground cavity, the airtight annular groove of base, circumferential groove and radial groove, it is characterized in that there is the airtight annular groove of multiple tracks on rounding frustum pressure head body, rounding frustum pressure head bottom is arranged at bottom, rounding frustum pressure head has circumferential groove and radial groove on bottom, rounding frustum pressure head body has and will closely be enclosed within on double horn shape gum cover, in double horn shape gum cover, there is soil sample rock stratum style, double horn shape gum cover bottom has the ground of company cavity to be closely enclosed within on the conical base for supporting of the airtight annular groove of multiple tracks base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118805.1U CN203849139U (en) | 2014-03-17 | 2014-03-17 | Permeability measuring device capable of improving gas tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118805.1U CN203849139U (en) | 2014-03-17 | 2014-03-17 | Permeability measuring device capable of improving gas tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849139U true CN203849139U (en) | 2014-09-24 |
Family
ID=51562142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118805.1U Expired - Fee Related CN203849139U (en) | 2014-03-17 | 2014-03-17 | Permeability measuring device capable of improving gas tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720662A (en) * | 2020-05-25 | 2021-11-30 | 中国石油化工股份有限公司 | Sample structure, sample preparation method and test system for rock three-dimensional permeability test |
-
2014
- 2014-03-17 CN CN201420118805.1U patent/CN203849139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720662A (en) * | 2020-05-25 | 2021-11-30 | 中国石油化工股份有限公司 | Sample structure, sample preparation method and test system for rock three-dimensional permeability test |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160317 |