Abstract: A composite drill gun for use in a wellbore environment can include a detonation housing containing a detonation source, a composite carrier containing one or more encapsulated charges, and a detonation train connecting the detonation source to the encapsulated charges. The detonation source and each individual encapsulated charge are all sealed with respect to the wellbore environment, and thus the carrier need not be sealed with respect to the wellbore environment. The carrier can be made out of composite materials without worry of leaks into the interior of the carrier, as the detonation source and encapsulated charges are all sealed with respect to the wellbore environment. The composite carrier can be easily drilled out of the wellbore after detonation.

Abstract: A composite drill gun for use in a wellbore environment can include a detonation housing containing a detonation source, a composite carrier containing one or more encapsulated charges, and a detonation train connecting the detonation source to the encapsulated charges. The detonation source and each individual encapsulated charge are all sealed with respect to the wellbore environment, and thus the carrier need not be sealed with respect to the wellbore environment. The carrier can be made out of composite materials without worry of leaks into the interior of the carrier, as the detonation source and encapsulated charges are all sealed with respect to the wellbore environment. The composite carrier can be easily drilled out of the wellbore after detonation.

Abstract: A system and method for use in used in oil and gas wellbores is provided. More specifically, the disclosure relates to barriers or seals used in downhole operations involving activities such as perforating operations and well abandonment operations. The system and method relate to sealing a borehole such as when a well is being abandoned at the end of its productive life. The embodiments are particularly applicable to boreholes containing casing with an inner wall and an outer wall wherein an annulus is formed between the outer wall of the casing and the borehole wall.

Abstract: A system and method for use in used in oil and gas wellbores is provided. More specifically, the disclosure relates to barriers or seals used in downhole operations involving activities such as perforating operations and well abandonment operations. The system and method relate to sealing a borehole such as when a well is being abandoned at the end of its productive life. The embodiments are particularly applicable to boreholes containing casing with an inner wall and an outer wall wherein an annulus is formed between the outer wall of the casing and the borehole wall.