| Document |
Document Title |
|
7373994 |
A coring member useful in wellbore excavating operations comprising at least one segment disposed onto the end of a shaft, where a channel is formed between each at least one segment. The at least one segment has an impeller like arrange...
|
|
7370711 |
A rolling cone drill bit including multiple cones with regions of intermeshing and non-intermeshing cutter elements. In the non-intermeshed regions, an array of cutter elements is disposed about the cone surface in a non-circumferential ...
|
|
7370710 |
An erectable arm assembly for use in a borehole, the erectable arm assembly comprising a main body and an arm member, the arm member being able to move between a collapsed position in which the assembly can be removed from the borehole a...
|
|
6889781 |
A method and apparatus for horizontally drilling in wells utilizing a shoe assembly at the down hole end of upset tubing. The shoe assembly includes a fixed section and a rotatable section suspended below the fixed section. An electric m...
|
|
6571867 |
A method and apparatus for forcing drainage devices through the sidewall of a borehole and into the formation to increase oil and gas recovery from the formation. The object usually comprises a plurality of drainage devices, which may be...
|
|
6550553 |
Apparatus for boring a hole from an inside of a tube outwardly perpendicular to a longitudinal axis of the tube comprises a drill shoe having a longitudinal axis and being positionable in the tube, the shoe having an inlet, an outlet per...
|
|
6378629 |
Apparatus for boring a hole from an inside of a tube outwardly perpendicular to a longitudinal axis of the tube comprises a drill shoe having a longitudinal axis and being positionable in the tube, the shoe having an inlet, an outlet per...
|
|
6276453 |
A method and apparatus for forcing drainage devices through the sidewall of a borehole and into the formation to increase oil and gas recovery from the formation. The object usually comprises a plurality of drainage devices, which may be...
|
|
5799729 |
A device for working the interior of pipes, with an outer casing, an inner casing which is axially displaceable therein, with a rotary head which carries a bracket for attaching a working apparatus, with respective gearing arrangements e...
|
|
5622231 |
A method for forming substantially lateral boreholes from within an existing elongated shaft includes positioning a drilling unit within the existing shaft, bracing the drilling unit against a wall surrounding the existing shaft to trans...
|
|
5615740 |
A joint of tubular casing with a pre-formed window in its sidewall has a tubular sleeve fixedly attached to the interior of the tubular casing by a plurality of shearable set screws. The exterior surface of the sleeve is sealed to the in...
|
|
5439066 |
A method and system for translating the orientation of a length of coil tubing from a generally vertical orientation to a generally horizontal orientation, inside a well borehole and downhole of a wellhead. A first conduit is installed a...
|
|
5425429 |
A method for forming substantially lateral boreholes from within an existing elongated shaft includes positioning a drilling unit within the existing shaft, bracing the drilling unit against a wall surrounding the existing shaft to trans...
|
|
5297638 |
Offshore well slots are recovered by cutting off old drive or surface pipe below the mud line to form a stub end. A new drivepipe is installed with a guide and shield device disposed on the scarfed lower end or "mule shoe" of the new dri...
|
|
5209309 |
A sidewall coring device includes a housing (12) which is operable to be disposed on the end of a drill string. A core tube (18) is disposed on one side of the housing on the interior thereof with an opening (20) provided for receiving c...
|
|
5197783 |
An extendable, retractable, erectable arm assembly for housing and supporting a water conduit extending outward from a tool located in a borehole, to a nozzle to produce a high pressure water cutting jet is provided. The arm assembly inc...
|
|
4964759 |
An improved device (10) is arranged to drill one or more holes through the wall of a subterranean sewer (11). The device includes a frame (13) adapted to be positioned within the sewer and moved to a desired location relative thereto. Th...
|
|
4819721 |
A remotely controlled, hydraulically operated cutter apparatus for use in a conduit includes control panel for generating a plurality of control signals for controlling the operation and a source of pressurized hydraulic fluid. Valves ar...
|
|
4640353 |
An electrode well extending into a subterranean formation containing viscous hydrocarbons comprising a plurality of electrode tubes which are formed by extension of an elongated tube from the surface above the formation using a coiled tu...
|
|
4630676 |
A remotely controlled, hydraulically operated cutter apparatus for use within a conduit includes a control for generating a plurality of control signals for controlling the operation of a source of pressurized hydraulic fluid. Valves are...
|
|
4527639 |
A system for the formation of a bore hole, particularly for use in enhancing the recovery of oil from an oil bearing underground formation using an assembly including a piston sliding in a guide tube. The forward end of the piston body t...
|
|
4497381 |
Earth well drilling apparatus including piping in a well, a metal drilling tube within the piping, and a hydraulic jet drilling head secured to the lower end of the tube. A seal is disposed between the piping and the tube. The drilling h...
|
|
4461360 |
An apparatus for drilling a sidewall core from a borehole which has a cylindrical housing with an opening through which a core bit and barrel are extended and retracted. In a preferred embodiment there is a fixed plate on opposite sides ...
|
|
4449593 |
This relates to sidewall coring tools used to obtain samples of the formation through which the wellbore is drilled. It includes a housing which supports a guide means along which the drill bit, core barrel and motor can be moved to exte...
|
|
4416339 |
The invention disclosed herein provides a mechanism and method for positive drill bit guidance during well drilling operations. The guidance device includes a control arm or paddle which, due to hydraulic pressure, pivots to steer the dr...
|
|
4365676 |
A hole is drilled laterally from a main well bore by lowering a drilling unit into the bore in a position of extension essentially longitudinally thereof, and then swinging the unit to a position of extension transversely of the well bor...
|
|
4197908 |
An apparatus for forming a port in a liner installed in a conduit having a lateral opening inwardly overlaid by the liner so that the port coincides with the lateral opening, including a carriage adjustably positionable longitudinally wi...
|
|
4168752 |
There is provided in accordance with the invention apparatus and a method for boring holes through carbonaceous deposits. The method involves the step of introducing combustion-supporting gases such as air under pressure through the appa...
|
|
4066137 |
A flame jet lance having a rotatable drill bit for forming cross holes in the ground is disclosed. The lance has various fuel and oxidizer tanks disposed therein and a fuel feed system coupled to the tanks for pumping the fuel to the rot...
|
|
3630296 |
A well bore sidewall sampling tool comprises a casing secured to the end of a drill pipe and mounting therein a sample core cutter head carrying a flexible collection receptacle. An actuating mechanism within the casing, operated by flui...
|
|
3598191 |
A well bore sidewall-sampling tool comprises a casing, adapted to be secured to the end of a drill pipe, and containing a plurality of sample core cutter heads, each of which encases a clear plastic disposable liner tube for receiving an...
|
|
3565189 |
The particular embodiment described herein as illustrative of one embodiment of the invention is directed to control circuitry for a selectively-operable hydraulic system employed for moving a wall-engaging member on a well tool into and...
|
|
3405772 |
|
|
3402967 |
|
|
3400980 |
|
|
3338307 |
|
|
3330367 |
|
|
3301337 |
|
|
3175392 |
|
|
3173500 |
|
|
3169589 |
|
|
3151689 |
|
|
3092189 |
|
|
3085637 |
|
|
3085636 |
|
|
3072202 |
|
|
2959397 |
|
|
2947518 |
|
|
2870989 |
|
|
2810548 |
|
