LandOfFree - US Patents - Listing for Boring or penetrating the earth,Boring with explosion in inaccessible hole

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Combined gravel packing and perforating method and apparatus for

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor

Patent

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Components and methods for use with explosives

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Reexamination Certificate

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Control system for borehole tools

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Independent firing of plural charges

Patent

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Core sample taking bullet construction

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing control mechanically actuated in bore

Patent

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Detonating heads

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

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Detonation of tandem guns

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor

Patent

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Device and method for explosive drilling

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Explosive charge carried by projectile

Reexamination Certificate

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Downhole activated process and apparatus for deep perforation of

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing chamber movable in bore relative to carrier or...

Patent

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Downhole activation system that assigns and retrieves...

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Independent firing of plural charges

Reexamination Certificate

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Dual redundant detonating system for oil well perforators

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

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Electromagnetically accelerated impact oil well drill

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing control mechanically actuated in bore

Patent

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Expendable tubing conveyed perforator

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge

Patent

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Explosive safe/arm system for oil well perforating guns

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing control mechanically actuated in bore

Patent

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Explosively actuated well tool having improved disarmed configur

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Independent firing of plural charges

Patent

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Firing Head

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Explosive charge carried by projectile

Patent

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Firing head for a tubing conveyed perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

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Firing head for a tubing conveyed perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

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Firing system for tubing conveyed perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing control mechanically actuated in bore

Patent

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Fluid activated detonating system

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

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Fluid pressure actuated perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor

Patent

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