Review client requirements and proposed locations for mining drilling, well drilling, geothermal drilling, directional drilling, and sonic drilling.

Unlike rotary drilling, cable tool drilling requires the drilling action to be stopped so that the bore hole can be bailed or emptied of drilled cuttings.

These products are used for diamond drilling, horizontal directional drilling, rotary and percussive drilling.

drilling muds and other drilling wastes

drilling muds and other drilling wastes

The process of the invention includes the step of circulation the drilling fluid of the invention through a drill string during borehole drilling.

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.

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

Drilling and boring services offering range of rigs, trucks and accommodation resources for drilling site locations.

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.

A borehead annular chamber arranged between the boring rod (1) and the borehole wall is sealed, by means of a borehole seal, in relation to the atmosphere.

Drilling apparatus comprises a rotatable drilling transmission shaft (14) for transmitting drilling torque down a bore hole.

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 company reported on 192,000 meters of exploration drilling in 928 drill holes.

The displayed drilling efficiency for the previously drilled wellbore is compared to the displayed drilling efficiency for the borehole.

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 syste includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hol assembly disposed in the wellbore and a drilling mud processing unit in flui communication with the wellbore.

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.

Flow rate of drilling fluid into the wellbore is compared to drilling fluid flow rate out of the wellbore.

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.

Cable tool water well drilling rig in Kimball, West Virginia, USA.

Cable tool water well drilling rig in Kimball, West Virginia. ...

Forensic wellbore data is obtained from at least one previously drilled wellbore which is determined to be comparable to the target wellbore.

A solution for determining a neutral point of a drillstring in drilling a borehole is disclosed.

A system for drilling a slender borehole through geologic formations.

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 oldest drilling technique is percussion or cable drilling.

The drilling device (12) comprises a drill floor (14) and a drilling derrick (18) extending from the drill floor (14).

Drilling technician (monitoring of oil drilling, mud logger)

Compare geotechnical drilling to diamond drilling 15

Subgroup 01 05 – Drilling mud and other drilling wastes