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

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

Perforating gun carrier and method of making

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

Perforating gun carriers and their methods of manufacture

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

Perforating gun charge carrier improvements

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

Perforating gun firing head with vented block for holding...

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

Perforating gun for initiation of shooting from bottom to top

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

Perforating gun including a unique high shot density packing arr

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

Perforating gun with paired shaped charger vertically spaced

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating

Perforating gun with retrievable mounting strips

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

Perforating guns having multiple configurations

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

Perforating methods and devices for high wellbore pressure...

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

Perforating system with shaped charge case having a modified...

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating

Phased perforating guns

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

Pipe conveyed explosive with self contained actuation

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

Positive fire indicator system

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

Pressure actuated safety switch for oil well perforating

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

Pressure cycle operated perforating firing head

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

Pressure responsive perforating and testing system

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

Projectile assisted drill for seismic operations

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

Redundant firing mechanism for a well perforating gun