GB655222A - Improvements in explosive devices for perforating well walls or casings and like operations - Google Patents
Improvements in explosive devices for perforating well walls or casings and like operationsInfo
- Publication number
- GB655222A GB655222A GB25868/48A GB2586848A GB655222A GB 655222 A GB655222 A GB 655222A GB 25868/48 A GB25868/48 A GB 25868/48A GB 2586848 A GB2586848 A GB 2586848A GB 655222 A GB655222 A GB 655222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- primacord
- enclosed
- liner
- perforating well
- 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
- 239000002360 explosive Substances 0.000 title abstract 3
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 abstract 2
- 239000000026 Pentaerythritol tetranitrate Substances 0.000 abstract 2
- 238000005422 blasting Methods 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 abstract 2
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 abstract 1
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 abstract 1
- HZTVIZREFBBQMG-UHFFFAOYSA-N 2-methyl-1,3,5-trinitrobenzene;[3-nitrooxy-2,2-bis(nitrooxymethyl)propyl] nitrate Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O.[O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O HZTVIZREFBBQMG-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 150000001540 azides Chemical class 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- QCOXCILKVHKOGO-UHFFFAOYSA-N n-(2-nitramidoethyl)nitramide Chemical compound [O-][N+](=O)NCCN[N+]([O-])=O QCOXCILKVHKOGO-UHFFFAOYSA-N 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- 229920001187 thermosetting polymer Polymers 0.000 abstract 1
- 239000000015 trinitrotoluene Substances 0.000 abstract 1
Classifications
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/117—Shaped-charge perforators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
655,222. Blasting devices for perforating well casings and the like. DU PONT DE NEMOURS & CO., E. I. Oct. 4, 1948, No. 25868. Convention date, June 5. [Class 9 (i)] An explosive device for perforating well casings comprises a high density explosive charge 3 having a conical recess at one end into which fits a frangible liner 1 provided with a conical or convex closure 2 integral with the liner. The liner is preferably of glass, and the charge may be cast 50-50 pentolite. The charge is enclosed in a thermosetting synthetic resin casing 4 and contains a booster charge 5 enclosed in a metal tube and initiated by a length of Primacord 6. The Primacord, which may be initiated by an electric blasting cap, is held in place by a clip 7. Suitable alternative compositions given for the charge 3 are pentaerythritol tetranitrate, cyclotrimethylene-trinitramine, ethylenedinitramine, or blends of these with trinitrotoluene. The booster charge may be 10 grms of pentaerythritol tetranitrate primed with 3 gms. of lead azide. The Primacord is enclosed in a metal tube e.g. aluminium, copper. The closure 2 may be rounded and the frangible material may be glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US655222XA | 1948-06-05 | 1948-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB655222A true GB655222A (en) | 1951-07-11 |
Family
ID=22063305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25868/48A Expired GB655222A (en) | 1948-06-05 | 1948-10-04 | Improvements in explosive devices for perforating well walls or casings and like operations |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB655222A (en) |
-
1948
- 1948-10-04 GB GB25868/48A patent/GB655222A/en not_active Expired
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