Claims
- 1. A perforating apparatus comprising:
- a substantially cylindrical carrier having a longitudinal axis;
- a plurality of explosive charges which are connected successively to said carrier and which face outwardly from said longitudinal axis, where the axial distance between axially sequential charges is not greater than 3/4 inch and where no two of said charges are mounted within a given plane perpendicular to said longitudinal axis; and
- a detonator operationally connected to said explosive charges.
- 2. The perforating apparatus of claim 1, wherein:
- said detonator extends substantially along said longitudinal axis.
- 3. The perforating apparatus of claim 1, further including:
- a gun body, said carrier and said explosive charges being disposed in said gun body.
- 4. The perforating apparatus of claim 1, wherein:
- said successive charges are circumferentially spaced from one another at an angle between 90 degrees and 180 degrees.
- 5. The perforating apparatus of claim 1, wherein:
- said successive explosive charges are circumferentially spaced from each other by an angle of 140 degrees.
- 6. The perforating apparatus of claim 1, wherein:
- said successive explosive charges are circumferentially spaced from each other by an angle of 112.5 degrees.
- 7. The perforating apparatus of claim 1, wherein:
- said successive charges are axially spaced 3/4 inch from one another.
- 8. The perforating apparatus of claim 1, wherein:
- greater than 12 said charges are connected per axial foot.
- 9. The perforating apparatus of claim 1, wherein:
- at least 16 said charges are connected per axial foot.
- 10. A perforating apparatus comprising:
- a perforating gun body;
- a substantially cylindrical carrier having a longitudinal axis, mounted within said gun body;
- a plurality of explosive charges which are connected successively to said carrier and which face outwardly from said longitudinal axis, where the axial distance between axially sequential charges is not greater than 3/4 inch, where no two said charges are mounted within a given plan perpendicular to said longitudinal axis, and where two charges having the same circumferential location are axially spaced apart by at least one foot; and
- a detonator operationally connected to said explosive charges.
- 11. A perforating apparatus comprising:
- a perforating gun body;
- a substantially cylindrical carrier having a longitudinal axis, mounted within said gun body;
- an array of explosive charges successively connected to said carrier, wherein said successive charges are axially spaced no greater than 3/4 inch from each other and circumferentially spaced between 90 and 180 degrees from each other.
- 12. The perforating apparatus of claim 1, wherein said successive explosive charges are circumferentially spaced from one another by 135 degrees.
- 13. The perforating apparatus of claim 10, wherein axially sequential charges are circumferentially spaced from one another by an angle .alpha. between 90 and 180 degrees.
- 14. The perforating apparatus of claim 10 or 13, wherein the angle by which axially sequential charges are circumferentially spaced is determined by the formula .alpha.=X/Y.multidot.360.degree., where X/Y is reduced to its simplest form, y>12 and Y/2>X>Y/4.
- 15. The perforating apparatus of claim 14, wherein the angle .alpha. is 140.degree..
- 16. The perforating apparatus of claim 14, wherein the angle .alpha. is 112.5.degree..
- 17. The perforating apparatus of claim 10, wherein successive charges are axially spaced 3/4 inch from one another.
Parent Case Info
This application is a continuation of Ser. No. 08/108,903, filed Aug. 18, 1993.
US Referenced Citations (38)
Continuations (1)
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Number |
Date |
Country |
Parent |
108903 |
Aug 1993 |
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