FIELD: oil production, particularly shaped-charge perforators.
SUBSTANCE: shaped charge includes three cumulative parts, namely central and two side ones tightly joined to central part so that all parts form a single piece. Central part is elongated and has constant symmetric cross-section. Side parts are defined by rotation of cross-section half through 180° angle about axis of symmetry. The shaped charge is placed in common body and has common facing formed of powder material.
EFFECT: increased perforation efficiency.
3 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CUMULATIVE CHARGE OF PERFORATOR | 2009 |
|
RU2432452C2 |
| CUMULATIVE PERFORATOR | 2005 |
|
RU2291285C1 |
| CUMULATIVE PERFORATOR | 2020 |
|
RU2742427C1 |
| WELL BORE ZONE PERFORATION METHOD AND SHAPED-CHARGE DEVICE (VARIANTS) | 2006 |
|
RU2317406C1 |
| PERFORATOR CHARGE | 2009 |
|
RU2391620C1 |
| IMPLOSATOR | 2008 |
|
RU2384695C2 |
| BOREHOLE HOLLOW-CARRIER JET-TYPE PERFORATOR | 2004 |
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RU2270911C1 |
| METHOD OF FORMING NONROUND PERFORATIONS IN UNDERGROUND BED BEARING HYDROCARBONS, NON-LINEAR CUMULATIVE PERFORATOR, FIRING PERFORATOR (VERSIONS) | 2004 |
|
RU2358094C2 |
| DEVICE FOR COMBINED WELL PERFORATION AND FORMATION FRACTURING | 2001 |
|
RU2179235C1 |
| WELL PERFORATION DEVICE | 1999 |
|
RU2138624C1 |
