FIELD: oil and gas industry.
SUBSTANCE: device includes explosive charge and at least one element capable of influencing explosion energy released with explosive charge after detonation, and containing the first part for absorption of explosion energy, which has the first thickness, and the second part to direct explosion energy, which has the second thickness. As per the first absorption version, cover or another obstructive element can be located directly near explosive charge prior to detonation. Size and arrangement of element relative to explosive charge can vary so that optimum explosion orientation can be reached. Annular element having a through hole can be used for direction of explosion energy of charge after detonation.
EFFECT: effective control of explosion energy in well bore, increasing safe use of cumulative perforators.
22 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2360100C2 |
| COUPLING ADAPTER, PERFORATING SYSTEM AND METHOD OF WELL PERFORATION | 2007 |
|
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| METHOD AND COMPONENT USED WITH EXPLOSIVES | 2000 |
|
RU2258801C2 |
| METHOD AND DEVICES TO CREATE TRANSITION PRESSURE CONDITION INSIDE WELL BORE | 2005 |
|
RU2310067C2 |
| DEVICES AND METHODS FOR WELL BORE PERFORATION | 2009 |
|
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| COMBINED DETONATORS FOR USE WITH BLASTING DEVICES | 2005 |
|
RU2295694C2 |
| PROCEDURE FOR INCREASED PRODUCTION OF METHANE FROM COAL BEARING STRATA BY RAPID OXIDATION (VERSIONS) | 2007 |
|
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| PERFORATOR FOR OIL WELL (VARIANTS) AND METHOD FOR CONCURRENT PERFORATION OF APERTURES IN CASING STRING OF OIL WELL AND IN AN AREA, SURROUNDING OIL WELL (VARIANTS) | 2002 |
|
RU2255208C2 |
| CUMULATIVE CHARGE | 2010 |
|
RU2557281C2 |
| BOREHOLE HOLLOW-CARRIER JET-TYPE PERFORATOR | 2004 |
|
RU2270911C1 |
