drilling muds and other drilling wastes

drilling muds and other drilling wastes

drilling muds and other drilling wastes

The drilling system then automatically adjusts the drilling parameters for continued drilling.

drilling muds and other drilling wastes

The invention provides drill bits and methods of drilling curved boreholes.

A drilling system for drilling a borehole into an earth formation is provided.

Both the drill string and the drill motor are rotated simultaneously during straight and deviated borehole drilling.

The sleeve reinforces the drill rod next to the drill bit and reduces and substantially eliminates the gap between the drill rod and the borehole in the vicinity of the drill bit.

There is described a technique for drilling and controlling the fluid pressure of a borehole (2, 102) during drilling of the borehole.

A drill bit assembly for boring including a drill bit and a bit sub.

According to the invention, a borehole (2) is formed by inserting a drill bit (4), and tensioning elements (10) coupled to the drill bit (4) are introduced into the borehole (2) during the boring process.

A method of boring through a formation includes providing a drilling machine (160) and drill string (106) and operatively coupling an earth bit (102) to the drilling machine through the drill string.

The invention relates to a method of drilling a bore hole into a stratum, wherein via the drill hole drilling fluid is introduced and fed to the drill head.

The well-bore hole is filled with a well-bore fluid DM.

A method of and system for directional drilling alternate between rotary drilling and sliding with the bit remaining in continuous contact with the bottom of the bore hole.

Advantageously, friction between the drill string and bore hole is reduced, leading to an increase in the drilling penetration rate.

Method at rock drilling for guiding continued drilling in a drill hole in a predetermined direction deviating from the direction of the drill hole.

The rock drilling rig (1) comprises a drilling unit (6) for drilling drill holes (21) as a drill hole pattern.

The main idea of the invention is to recover drilling fluid used in sample drilling at a drilling machine, when the drilling fluid exits the drill hole, and to transport it to a separate cleaning unit (501).

The invention relates to a method of presenting positioning information on a drilling unit of a rock drilling rig when drilling drill holes as a fan-like pattern.

The drilling path of the borehole is updated using seismic data acquired as the borehole is being drilled, so that it is not necessary to interrupt the drilling process in order to update the drilling path.

A system for drilling a substantially horizontal borehole, comprises a rotating drill string (8) extending from a surface system to a location in the horizontal borehole, the drill string having a drill bit (17) at a bottom end.

The present invention relates generally to drill bits used in drilling subterranean boreholes.

The sleeve, therefore, reduces the wobble of the drill bit in the borehole and reduces the drill bit from wavering from a straight linear drilling direction.

The invention relates to a drill rod for a down-the-hole hydraulic drilling apparatus.

The present invention relates to methods of drilling a wellbore wherein a drill-in fluid is foamed at the drill tool.

The well bore is drilled over-balanced with a drilling fluid having a density at least about the density of the cuttings produced by drilling the well bore.

The compartments are for storing wellbore drilling consumables and wellbore drilling waste.

For a drill string composed of a plurality of wellbore tubulars, a phase shift of the drill sting is determined upon adding a wellbore tubular to the drill string.

A drill bit for drilling casing in a well bore.

Integrated drilling and evaluation systems and methods for drilling, logging and testing wells are provided.

A method of mixing drilling fluids at a drill site includes the transportation of sealed silo assemblies (30) that can contain dry products in bulk to the well drilling site.

A drilling fluid telemetry pulser comprises a housing disposed in a drill string in a wellbore, wherein the drill string has a drilling fluid flowing therein.

After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

A pumping system removes cuttings from the drilling tool and also transports the cuttings along at least a portion of the wellbore formed behind the drilling tool.

The drill string includes a tubular, a borehole assembly coupled to the tubular and a drill bit disposed at an end of the borehole assembly.

The present invention is directed to the method drilling a borehole with monoester-based drilling fluid compositions.

A well system can include a drilling tool which chops drill cuttings, and another drilling tool which forces the chopped drill cuttings against a borehole wall.

The apparatus (#20) is connected to the drill bit (#36) to follow it through the borehole as the borehole is formed.

The present invention provides a drilling system (10) for drilling of boreholes.

The cleaned drilling fluid is returned to the drilling machine and reused in sample drilling.

This invention includes drilling assemblies, drilling reamer arm assemblies, and methods of drilling.

Thereafter the drilling is continued using the same drill bit, by percussive drilling.

The drilling apparatus contains a drill rod that is fitted with a reinforcing sleeve that is located on the drill rod as close as possible to the drill bit.

The invention relates to a drilling head, particularly a wash drilling head of a horizontal drilling device, comprising sensors that are placed inside the drilling head.