GR78038B - - Google Patents
Info
- Publication number
- GR78038B GR78038B GR69319A GR820169319A GR78038B GR 78038 B GR78038 B GR 78038B GR 69319 A GR69319 A GR 69319A GR 820169319 A GR820169319 A GR 820169319A GR 78038 B GR78038 B GR 78038B
- Authority
- GR
- Greece
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
- F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay
-
- 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
- E21B43/1185—Ignition systems
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Air Bags (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Insulated Conductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30444381A | 1981-09-21 | 1981-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GR78038B true GR78038B (pt) | 1984-09-26 |
Family
ID=23176531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GR69319A GR78038B (pt) | 1981-09-21 | 1982-08-20 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0075520A3 (pt) |
| AU (1) | AU558795B2 (pt) |
| CA (1) | CA1198668A (pt) |
| GR (1) | GR78038B (pt) |
| IN (1) | IN158342B (pt) |
| NO (1) | NO823004L (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7762331B2 (en) * | 2006-12-21 | 2010-07-27 | Schlumberger Technology Corporation | Process for assembling a loading tube |
| WO2010030266A1 (en) * | 2008-09-09 | 2010-03-18 | Welldynamics, Inc. | Remote actuation of downhole well tools |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2142583A (en) * | 1935-05-13 | 1939-01-03 | Lane Wells Co | Perforating gun |
| US2266343A (en) * | 1941-02-06 | 1941-12-16 | Lane Wells Co | Gun perforator |
| US3208378A (en) * | 1962-12-26 | 1965-09-28 | Technical Drilling Service Inc | Electrical firing |
| US3517758A (en) * | 1968-09-23 | 1970-06-30 | Schlumberger Technology Corp | Control apparatus for selectively operating electrical well-completion devices |
| FR2144598B1 (pt) * | 1971-07-07 | 1974-09-06 | Geophysique Cie Gle | |
| US4234768A (en) * | 1974-12-23 | 1980-11-18 | Sie, Inc. | Selective fire perforating gun switch |
| NL7514743A (en) * | 1975-12-18 | 1977-06-21 | Philips Nv | Three phase wiring connector block - has internal crossover connections which give tidier external wiring |
-
1982
- 1982-08-20 GR GR69319A patent/GR78038B/el unknown
- 1982-09-06 NO NO823004A patent/NO823004L/no unknown
- 1982-09-20 CA CA000411791A patent/CA1198668A/en not_active Expired
- 1982-09-20 AU AU88543/82A patent/AU558795B2/en not_active Expired - Fee Related
- 1982-09-21 EP EP82401712A patent/EP0075520A3/en not_active Withdrawn
- 1982-10-11 IN IN1170/CAL/82A patent/IN158342B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN158342B (pt) | 1986-10-25 |
| EP0075520A3 (en) | 1985-09-18 |
| AU558795B2 (en) | 1987-02-12 |
| NO823004L (no) | 1983-03-22 |
| AU8854382A (en) | 1983-03-31 |
| EP0075520A2 (en) | 1983-03-30 |
| CA1198668A (en) | 1985-12-31 |