| US 7,600,568 B2 | ||
| Safety vent valve | ||
| Colby W. Ross, Houston, Tex. (US); Timothy W. Sampson, Spring, Tex. (US); and William D. Myers, Jr., Spring, Tex. (US) | ||
| Assigned to Baker Hughes Incorporated, Houston, Tex. (US) | ||
| Filed on Jun. 01, 2006, as Appl. No. 11/444,881. | ||
| Prior Publication US 2007/0277966 A1, Dec. 06, 2007 | ||
| Int. Cl. E21B 43/11 (2006.01) | ||
| U.S. Cl. 166—297 [166/55.1] | 15 Claims |
| 13. A method of perforating in a wellbore comprising:
providing a perforating gun connector having an annular housing, a frangible vent valve extending through a lateral side of
the housing, a detonating cord in the housing, and without shaped charge explosives in the gun connector;
coupling a first perforating gun having a shaped charge explosive and associated detonation cord to a first end of the gun
connector and coupling a second perforating gun to a second end of the gun connector to form a perforating gun string;
deploying the string into a wellbore;
activating the first perforating gun detonation cord to detonate the shaped charge;
rupturing the vent valve by producing a shock wave in the connector so that fluid communication is provided from the cavity
to outside of the connector and from the cavity to within the perforating gun.
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