AU2012100894A4 - Inflation Medium - Google Patents
Inflation Medium Download PDFInfo
- Publication number
- AU2012100894A4 AU2012100894A4 AU2012100894A AU2012100894A AU2012100894A4 AU 2012100894 A4 AU2012100894 A4 AU 2012100894A4 AU 2012100894 A AU2012100894 A AU 2012100894A AU 2012100894 A AU2012100894 A AU 2012100894A AU 2012100894 A4 AU2012100894 A4 AU 2012100894A4
- Authority
- AU
- Australia
- Prior art keywords
- borehole
- inflatable
- propellant
- borehole plug
- canister
- 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
Links
- 239000003380 propellant Substances 0.000 claims abstract description 21
- 238000010792 warming Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- CDOOAUSHHFGWSA-OWOJBTEDSA-N (e)-1,3,3,3-tetrafluoroprop-1-ene Chemical compound F\C=C\C(F)(F)F CDOOAUSHHFGWSA-OWOJBTEDSA-N 0.000 claims description 4
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 239000000443 aerosol Substances 0.000 abstract description 9
- 239000002360 explosive Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 3
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- SJSSFUMSAFMFNM-NSHDSACASA-N (2s)-5-(diaminomethylideneamino)-2-(phenylmethoxycarbonylamino)pentanoic acid Chemical compound NC(N)=NCCC[C@@H](C(O)=O)NC(=O)OCC1=CC=CC=C1 SJSSFUMSAFMFNM-NSHDSACASA-N 0.000 description 1
- WMFBGXXJQTWHFB-VOQLAZDYSA-N (2s,3r)-2-acetamido-n-[(2r)-1-[[(2s)-1-[benzyl(methyl)amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-(1-formylindol-3-yl)-1-oxopropan-2-yl]-3-hydroxybutanamide Chemical compound C([C@H](NC(=O)[C@@H](CC=1C2=CC=CC=C2N(C=O)C=1)NC(=O)[C@@H](NC(C)=O)[C@H](O)C)C(=O)N(C)CC=1C=CC=CC=1)C1=CC=CC=C1 WMFBGXXJQTWHFB-VOQLAZDYSA-N 0.000 description 1
- YFMFNYKEUDLDTL-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoropropane Chemical compound FC(F)(F)C(F)C(F)(F)F YFMFNYKEUDLDTL-UHFFFAOYSA-N 0.000 description 1
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- -1 R 5 11 Chemical compound 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/22—Methods for holding or positioning for blasting cartridges or tamping cartridges
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Medicinal Preparation (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Abstract A system for plugging boreholes for the purposes of supporting explosives to be loaded into the borehole at a desired height, using an aerosol inflation system containing a low global warming potential non-flammable propellant.
Description
Australia Complete Specification for an Innovation Patent Invention Title: Inflation Medium Dated: Wednesday 6 th June 2012 -2 The invention is described in the following statement together with the best method of performing it known to us: Borehole Plug Inflation Medium 5 The present invention relates to borehole plugs of the types described in AU595887, US 5,346,005 and AU4,846,278 and the propellant for inflation of these borehole plugs, more particularly, to low vapour pressure non flammable propellant for aerosol cans used for the inflation of borehole plugs. 10 Background Typically explosive charges for mining and other excavation activities are placed in boreholes. Frequently such charges are supported at some point below the surface that is at some desired depth in the borehole. Inflatable plugs in the form of gas tight bags are used for this purpose. The plug pressure release is 15 activated then the plug is lowered to a desired depth and inflated such that it becomes firmly engaged with the sides of the borehole. Typically, inflation is by means of an aerosol canister attached to the bag and arranged so as to discharge its pressurised contents during the descent of the 20 bag down the borehole. A common problem experienced with such an arrangement is that in some situations the high ambient temperatures can raise the internal pressure of the aerosol canister above the rated capacity of the aerosol canister. A second 25 problem is that common aerosol propellants are flammable increasing the hazards associated with the use and storage of the Inflatable borehole plugs. Additionally, conventional non-flammable aerosol propellants have a high global warming potential. 30 It is an object of the present invention to address or at least ameliorate some of the above disadvantages.
-3 Brief Description of Invention The invention relates to a more reliable and safer gas or liquid propellant for use in borehole plugs. The invention is a gas or liquid propellant that is non 5 flammable, non toxic and has a low vapour pressure and low global warming potential. Brief Description of Drawings Embodiments of the present invention will now be described with reference to the 10 accompanying drawings wherein: Figure 1 is a plan view of an inflatable borehole plug consists of a gas tight bladder or bag figure 1 (1) with a pressure canister or aerosol can (3) sealed inside the gas tight bladder (1) usually by means of heat sealing or welding (2) of 15 the gas tight bladder. The pressure canister or aerosol can is filled with a suitable propellant and in some cases a further liquid that may delay the release of propellant or increase the density of the propellant. The inflatable borehole is operated via a latch (4) on 20 the pressure canister or aerosol can. Thereby releasing the inflating agent and thus inflating the borehole plug. After operation of the latch (4) the inflatable borehole plug is usually lowered into the borehole on a string or similar device and held in place until the inflatable 25 plug inflates and secures itself against the walls of the borehole. Detailed Description of Preferred Embodiment This invention is for a low vapour pressure non flammable propellant to be used in an inflatable borehole plug which uses a pressurised canister such as an 30 aerosol can to inflate the borehole plug. Inflatable borehole plugs are described in AU 656051 -4 Typically refrigerant gases are used as non flammable propellants HFC-134a, 1, 1, 1, 2-tetrafluoroethane, HFC-152a, HFC125 and alike. There are also those propellants that have been deemed to affect the ozone layer such as CFC-12, R 5 11,R-12, R-500, R40, Dichlorodifluoromethane, HCFC-22,HFC-22, HFC-123, HFC-227 and alike and more lately HFC-134a but the latter has a high global warming potential. The high global warming potential and/or ozone depletion potential of these 10 propellants results in the need for the use of low GWP fluorinated propellants ameliorates these issues. Propellants in this family include both HFO-1234ze and HFO-1234yf. Additionally, HFO-1234ze is non-flammable, meeting the additional requirement 15 of a non-flammable propellant. The mildly flammable HFO-1234yf, in mixtures with HFO-1234ze and other non-flammable gases, may also be non-flammable, so blends of the chemicals also meet this requirement. Mixtures including r-134a can be used to ensure that the vapour pressure is not 20 too low, while ensuring that the mixture remains non-flammable, at the expense of a higher global warming potential. The above describes only some embodiments of the present invention and modifications, obvious to those skilled in the art, can be made thereto without 25 departing from the scope and spirit of the present invention.
Claims (5)
1. An inflatable borehole plug with a sealed gas tight container containing a pressure canister, said pressure canister containing a non-flammable 5 fluorinated propellant with a global warming potential below 500.
2. An inflatable borehole plug as in Claim 1, where the propellant consists of HFO-1234ze, HFO-1234yf or a mixture of both. 10
3. An inflatable borehole plug as in Claim 1 where the propellant consists of a mixture of a low global warming potential fluorinated propellant and r134a.
4. An inflatable borehole plug as in Claim 1 where the canister also contains 15 a hydro carbon or other forms of liquid.
5. A method of inflating a borehole plug by a non-flammable flow of gas or liquid from a canister sealed within a gas tight bag or bladder; said method including the steps of: 20 a) Operating the pressure release mechanism b) Lowering or moving inflatable borehole plug into position c) Waiting until the inflatable borehole plug has inflated and engaged the walls of the borehole.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012100894A AU2012100894A4 (en) | 2012-06-18 | 2012-06-18 | Inflation Medium |
| AU2013277923A AU2013277923A1 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
| AU2013101793A AU2013101793A4 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
| PCT/AU2013/000642 WO2013188906A1 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012100894A AU2012100894A4 (en) | 2012-06-18 | 2012-06-18 | Inflation Medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2012100894A4 true AU2012100894A4 (en) | 2012-08-09 |
Family
ID=46634764
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2012100894A Expired AU2012100894A4 (en) | 2012-06-18 | 2012-06-18 | Inflation Medium |
| AU2013101793A Expired AU2013101793A4 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
| AU2013277923A Pending AU2013277923A1 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2013101793A Expired AU2013101793A4 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
| AU2013277923A Pending AU2013277923A1 (en) | 2012-06-18 | 2013-06-18 | Inflatable borehole plug and inflation medium |
Country Status (2)
| Country | Link |
|---|---|
| AU (3) | AU2012100894A4 (en) |
| WO (1) | WO2013188906A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089616A1 (en) * | 2012-12-10 | 2014-06-19 | Mti Group Pty Ltd | Temperature sensitive indicia for dangerous goods |
| CN108533213B (en) * | 2018-05-28 | 2023-06-23 | 长江岩土工程有限公司 | Device for plugging and exposing drilling holes in bearing water of covering layer and plugging method of device |
| CN110591652B (en) * | 2019-09-12 | 2020-09-25 | 珠海格力电器股份有限公司 | Heat transfer composition and heat exchange system |
| CN111322918A (en) * | 2020-03-20 | 2020-06-23 | 威海埃姆提爱矿山设备有限公司 | Gas of gas spacer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9205162A (en) * | 1991-12-24 | 1993-06-29 | Specialised Polyurethane Appli | INFLATABLE SHUTTER SET FOR DRILLING HOLES, COMBINATION AND PROCESS OF POSITIONING THE SUCH SHUTTER SET |
| AU2005100115A4 (en) * | 2005-02-09 | 2005-03-24 | Jadefoil | Inflation Medium |
-
2012
- 2012-06-18 AU AU2012100894A patent/AU2012100894A4/en not_active Expired
-
2013
- 2013-06-18 AU AU2013101793A patent/AU2013101793A4/en not_active Expired
- 2013-06-18 AU AU2013277923A patent/AU2013277923A1/en active Pending
- 2013-06-18 WO PCT/AU2013/000642 patent/WO2013188906A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013101793A4 (en) | 2019-05-02 |
| AU2013277923A1 (en) | 2015-02-05 |
| WO2013188906A1 (en) | 2013-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |