Globaltech Corporation Pty Ltd

Veracio Ltd.

Longyear Tm, Inc.

Gordon Stewart

Christopher L Drenth

Khaled Hejleh

Brett James Wilkinson

Michael Alan Klass

Raymond Hill

Johan Anwar

Adam Tomaszewski

Brett Wilkinson

Khaied Hejleh

A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.

Core barrel head assembly with an integrated sample orientation tool and system for using same

A system for determining depth within a borehole. The system includes a downhole device having at least one inertial sensor, at least one processor, and a memory in communication with the at least one processor. The memory can include instructions thereon that, when executed, cause the processor to: receive data from the at least one inertial sensor and store the data from the at least one inertial sensor in the memory with respective correlated time values. The system can further include a drill rig having at least one depth measurement device. The at least one depth measurement device can include a drill string position sensor that is configured to produce a measurement indicative of a length of a portion of a drill string removed from a borehole or a wireline sensor that is configured to determine a length of deployed wireline cable.

Systems and methods for measuring depth within a borehole

Apparatus () for measuring drilling parameters of a down-the-hole drilling operation for mineral exploration includes a modulemounted in-line with a drill string () and proximate to a drill bit (). The drill string () is rotated and progressed down the hole. The module () has sensors for sensing conditions. The apparatus () measures drilling parameters based on the sensed conditions. The measured data is logged in the module () and then transmitted to a computer for a drilling operator's use. The drilling operator monitors progress and optimises performance of the drilling operation based on the measured data. Measurement of drilling parameters based on sensed data proximate to the drill bit enables accurate determination of actual WOB, torque and RPM fluctuations, axial vibration, radial vibration, temperature, RPM. A second moduleis mounted in-line with the same drill string () but away from the drill bit (). The second modulemeasures the same drilling parameters as the moduleproximate to the drill bit (). The driller is provided with the data recorded by the second moduleto judge the performance of the drilling operation. Comparing drilling parameters based on sensed data proximate to the drill bit and distal to the drill bit enables accurate determination of vertical drag/resistance of the drill string () within the hole, rotational resistance of the drill string (), degree of wind-up of the drill string () and presence of stick-slip conditions at lower end of the drill string ().

Apparatus and method for measuring drilling parameters of a down-the-hole drilling operation for mineral exploration

Winch () has a load bearing tape () to advance into a borehole (). Hole depth can be determined by subtracting a sensed height () above ground surface () from total depth () measured. Can include a height above ground sensor () and a tape distance measurer (). Depth of water or watery mud or muddy water () can be sensed, such as by a pressure sensor () on a weight or in a sensor device at or near the tape leading end. A heater () can warm the tape. A cover or housing () can be provided for the winch or spool. The tape can include wires or fibre optics () embedded in or applied to a surface of the tape () and/or apertures or embedded or surface applied markers/indicators () along a length thereof e.g. for reading by an optical or magnetic sensor.

Tape winch, drilling progress measurement and hole depth measurement

A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.

Growing community of inventors

Claremont, Australia

Gordon Stewart