Wirth Maschinen-und Bohrgerate-fabrik Gmbh

Aker Wirth Gmbh

Wirth Maschinen- Und Bohrger&auml;tefabrik Gmbh

Mhwirth Gmbh

Peter Heinrichs

Fritz Tibussek

Albrecht Heinrichs

Hermann Josef Von Wirth

An apparatus for making a second borehole in the ground, a cross section of which second borehole partially intersects a cross section of an existing first borehole, includes a boring device and a guide device operatively connected to the boring device. The guide device includes at least a first guide element configured to interact with a wall of the existing first borehole and a direction-influencing device configured to influence a direction of the second borehole while the second borehole is being made. The guide device is configured to guide the boring device relative to the existing first borehole.

Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect

The invention relates to a device for drilling a bore in the ground, comprising a drive system with a connecting rod assembly that extends from the drive system into the ground. The end of said assembly pointing towards the face or base of the bore is connected to a tool head (). The device also comprises several tools () that are located on the tool head () and work on the face or the base of the bore. The inventive device is characterised in that each tool () comprises an excavation disc () and elements that cause the excavation disc () to oscillate during operation.

Device for drilling a bore in the ground

In the drawworks for lowering and withdrawing a load, in particular a drilling or a drilling plugging device, in particular for use on floating drilling platforms, which drawworks has at least one brake arrangement for braking and holding the load, an emergency brake device is provided for producing an additional braking force.

Draw works

The lifting gear includes a rotatably mounted drum ( ) for winding up tension means ( ), which is driven in rotation by at least one rotary driving device ( ) comprising a rotary driving motor ( ) acting on the drum ( ) through at least one change-speed gearbox ( ). The at least one rotary driving device ( ) is&mdash;in relation to the axis of rotation (S) of the drum ( )&mdash;arranged alongside the drum ( ) in such a way that the drum ( ) and the rotary driving device ( ) at least partially overlap in a projection perpendicular to the axis of rotation (S) of the drum ( ).

Hoisting gear

To separate relatively long upright pipes (,) which have a relatively large diameter, the lower end thereof being fixed in the ground, in particular of support legs (,) of an off-shore oil bore or conveying platform (,), a cutting unit is lowered down into the pipe (,) to a separation point. The cutting unit (,) acts gradually from the inside across the periphery to the internal periphery of the pipe (,) and cuts through the pipe (,) by removing metal. A bore tool head (,) is mounted upstream of the cutting unit (,), viewed from the lowering position, and is used to bore out material in the pipe such as ocean bed or concrete.

Growing community of inventors

Wegberg, Germany

Peter Heinrichs