US20200408091A1 - Method and system for acquiring geological data from a bore hole - Google Patents
Method and system for acquiring geological data from a bore hole Download PDFInfo
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- US20200408091A1 US20200408091A1 US17/015,253 US202017015253A US2020408091A1 US 20200408091 A1 US20200408091 A1 US 20200408091A1 US 202017015253 A US202017015253 A US 202017015253A US 2020408091 A1 US2020408091 A1 US 2020408091A1
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- blast hole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
- E21B49/04—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using explosives in boreholes; using projectiles penetrating the wall
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/003—Determining well or borehole volumes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/003—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by analysing drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/08—Measuring diameters or related dimensions at the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
Abstract
Description
- This application is a continuation of application Ser. No. 16/627,288 filed on Dec. 28, 2019 which is a national stage filing under 35 U.S.C. 371 and claims priority of International Application serial no. PCT/AU2018/050654 having an international filing date of Jun. 27, 2018 which in turn claims priority of Australian patent application serial no. 2017902485 filed on Jun. 27, 2017, the disclosures of which are incorporated herein by reference.
- A method and system are disclosed for obtaining geological data from a bore hole. The data may then be used for various applications including but not limited to designing an optimal charge profile for the hole or material characterisation for improving downstream processing. The method and system contemplates providing a geophysical measurement instrument on a vehicle having an additional function such as a drill rig or an explosives truck.
- To maximise efficiency of drill and blast in mining including downstream processing it is desirable to acquire geological and physical property data relating to the strata in which the blast holes are drilled. For example information relating to the compressive strength of the strata and the location of geological boundaries and discontinuities enables mine owners to custom-designed a charge profile for the hole to achieve optimal blasting outcomes. The outcomes could be for example a targeted particle size distribution or minimisation of fly rock, dust or heave.
- Some of this data can be acquired while drilling a blast hole. Many drill rigs include measurement systems to provide information such as weight on bit and rate of penetration. This information can be used to estimate physical characteristics of the strata which in turn may be used to determine the type, volume and placement of explosive material(s) to achieve a desired outcome. However these data typically do not provide a sufficient level of diagnostic information alone to fully determine the geological nature of the drilled material.
- In addition to or as an alternative it is also known to assay the material from the blast hole to obtain further information which cannot be acquired solely by drill rig performance. For example Australian patent application number 2012258434 by Lewis Australia Pty Ltd proposes a self-contained mobile sampling and processing facility for sampling and subsequently processing cuttings from the blast hole. This necessarily requires the use of a machine in addition to the regular pit vehicles of a drill rig and an explosives truck. Accordingly there is additional capital outlay for the machine itself and for the operator. Further the sampling and processing performed by the machine substantially slows down the drill and blast method.
- Irrespective of how the information from the analysis of drill cuttings or other ground samples is acquired it can be used for different purposes including optimal design of the blast hole charge or determining the location in a blasted bench of material of different composition or particle size distribution. The latter information can be used for example by a metallurgist to improve the efficiency of material classification/separation at the mucking stage and other downstream physical and/or chemical processing stages.
- Throughout this specification and claims, except where the context requires otherwise due to express language or necessary implication, the term “geological data” is intended to include geophysical data, petro physical data, mineralogical and compositional data and also hole geometry data. Here the expression “hole geometry data” is intended to include one of more of hole depth, volume, attitude and presence and/or configuration of fractures or voids.
- The above references to the background art do not constitute an admission that the art forms a part of the common general knowledge of a person of ordinary skill in the art.
- The above references are also not intended to limit the application of the method and system as disclosed herein.
- In a first aspect there is disclosed a method of obtaining geological data pertaining to a bore hole comprising:
- supporting a ground drill and a separate geological instrument on a common vehicle, the instrument being capable of acquiring geological data including one or more of geophysical, petro physical, mineralogical and compositional data, and hole geometry data from within the blast hole;
drilling a bore hole using a ground drill the bore hole having an exposed circumferential wall;
moving the ground drill out of the bore hole and subsequently out of alignment with the bore hole;
lowering and subsequently retrieving the instrument from the bore hole; operating the instrument while in the bore hole to acquire geological data of the ground in which the bore hole is drilled. - In one embodiment the borehole is a blast hole.
- In a second aspect there is disclosed a method of drilling and blasting a hole comprising: drilling a blast hole and obtaining geological data relating to the blast hole using the method of the first aspect; and designing a charge profile of explosive material for the blast hole using the geological data.
- In one embodiment the second aspect further comprises controlling an explosive materials supply vehicle to deposit explosive materials in the blast hole in accordance with the charge profile.
- In a third aspect there is disclosed a method of charging a blast hole with explosive material comprising:
- driving a vehicle carrying one or more explosive materials to a blast hole having a hole wall;
aligning a geological measurement instrument supported on the vehicle with the blast hole and lowering and subsequently retrieving the instrument from the blast hole;
operating the instrument while in the blast hole to acquire geological data of the ground in which the blast hole exists;
using the acquired geological data to determine geological characteristics of the ground surrounding the blast hole; and
depositing into the blast hole one or more explosive materials from the vehicle on the basis of the determined geological characteristics. - In a fourth aspect there is disclosed a bore hole drilling and data collection system comprising:
- a vehicle;
a drill string mounted on the vehicle and capable of drilling a bore hole;
a geophysical measurement instrument capable of acquiring geophysical data relating to the a bore hole drilled by the drill string; and
a handling system mounted on the vehicle and associated with the drill string and the geophysical measurement instrument, the handling system being arranged to: move the drill string into and out of a bore hole, align the instrument with the bore hole and subsequently move the instrument into and out of the bore hole. - In a fifth aspect there is disclosed a blast hole charging system capable of charging a blast hole with explosive material the system comprising:
- a vehicle carrying a supply of explosive material and a geophysical measurement instrument capable of acquiring geophysical data relating to the a blast hole drilled by the drill string;
a handling system mounted on the vehicle and associated with the geophysical measurement instrument, the handling system being arranged to move the instrument into and out of the blast hole;
a control system for controlling discharge of explosive material from the vehicle into the blast hole on the basis of the acquired geophysical data. - Notwithstanding any other forms which may fall within the scope of the system and method as set forth in the Summary, specific embodiments will now be described, by way of example only, with reference to becoming drawings in which:
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FIG. 1 is an illustration of a drill rig which may be incorporated in a first embodiment of the disclosed method and system for acquiring geological data from a bore hole and in a specific application pertaining to charging a blast hole; -
FIG. 2 is a representation of a bench in which a plurality of blast holes have been drilled using a drill rig (or rigs) of the type shown inFIG. 1 ; -
FIG. 3 is a schematic representation of a geological data measuring instrument may be incorporated in various embodiments of the disclosed method and system for acquiring blast hole geological data and charging a blast hole; -
FIG. 4 illustrates one way of representing geological data acquired by use of the disclosed method and system which may subsequently determine the type of strata automatically to aid in the design of a charge profile for a blast hole; -
FIG. 5 illustrates a three-dimensional model of the strata generated using the acquired geological data and which may also be used to design a charge profile for a blast hole; -
FIG. 6 is a representation of an explosives truck which may be incorporated in a second embodiment of the disclosed method and system for acquiring blast hole geological data and charging a blast hole; and -
FIG. 7 is an illustration of an embodiment of the disclosed method and system for acquiring geological data from a bore hole in an underground mining application. -
FIG. 1 is an illustration of one type ofdrill rig 10 used for drilling blast holes. Thedrill rig 10 has a track mountedbody 12 which includes an operator cab and adrill tower 14. The drill tower can be tilted through 90° between a horizontal position and a vertical position as shown inFIG. 1 . Arotation head 16 is mounted on the tower for providing torque to adrill string 18. One or more hydraulic rams (not shown) are provided on thetower 14 for providing pull down or pull back to thedrill string 18 via therotation head 16. However as will become apparent from the following description embodiments of the disclosed method and system can be used in relation to other forms of blast hole drill rigs. - It is common for a
drill rig 10 to be provided with a GPS to enable accurate positioning for drilling blast holes on a bench or survey data in underground applications. Indeed autonomous drill rigs are currently available which can be programmed with the location of blast holes. These rigs are able to self-drive and position their masts at the programed locations to automatically drill the blast holes. It is also common for drill rigs to measure and record or transmit various performance indicators during drilling. These indicators include for example weight on bit and rate of penetration. -
FIG. 2 illustrates a bench B in which a plurality of blast holes H have been drilled using adrill rig 10. Each hole is surrounded by a cone made from drill cuttings. In order to optimise production from the bench it is advantageous to acquire geological and other data relating to the strata in, and surrounding, the blast hole. This enables for example different grades and/or types of material to be identified as well their boundaries. This information can then be used to determine the explosives profile for the holes and the bench to optimise fragmentation and/or mucking. This is beneficial for downstream processing. - Once the blast holes have been drilled an explosives truck is driven onto the bench or stope area. An operator will then analyse data relating to the strata derived from the geological data available to the operator to determine an appropriate charge to achieve a desired effect and charge the holes accordingly.
- The drill rig and the explosives truck are different types of “mine vehicles” that are allowed onto a bench or underground. For safety reasons mine owners very tightly control the number of vehicles and personnel on a bench or underground. Some prior art drill rigs include add-on sampling systems enabling them to acquire a sample of the drill cuttings for subsequent as saying. However when this is not the case a third vehicle, such as that described in AU 2012258434 mentioned in the Background Art discussion above, may be allowed onto the bench to enable the acquisition of cutting samples for analysis.
- Embodiments of the disclosed method and system have been developed to facilitate the acquisition of geological data pertaining to the ground in which bore holes are drilled without the need for assaying of drill cuttings or introducing any additional vehicles or personnel onto a bench, drive or drilling and/or blasting zone over and above that required for performing another required function.
- In two examples, which are discussed in greater detail below in the context of the borehole being blast holes, embodiments of the disclosed method and system involve mounting a geological instrument on a pit vehicle such as a drill rig or explosives truck to enable acquisition of geological data (as defined above) of the ground in which the bore/blast hole is drilled.
- When the instrument is used in conjunction with a drill rig the geological data derived from the instrument can be made available, in either a raw or a processed state, to an explosives vehicle or an intermediate analytics platform or processor. The geological data may be accompanied by various data acquired by the drill rig itself (often referred to as Measure While Drilling (MWD) data). The geological data with or without being supplemented by the MWD data may then be used to determine an appropriate charge profile. This in turn can be used by an operator of an explosives truck to charge the hole; or used by the explosives truck to autonomously control discharge of explosive materials to achieve the charge profile.
- Alternately the instrument may be mounted on the explosive struck itself and subsequently lower into and retracted from the blast hole to acquire the data by an instrument handling system on the explosives truck. Drill rig data can optionally be transmitted or otherwise made available to the explosive struck to be used in conjunction with the data from the instrument to again control the discharge of exposes material from the truck into the hole.
- The geological data may have other applications including for mine processing optimisation. For example this can assist in determining appropriate processing parameters for extracting a target mineral.
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FIG. 3 is a representation of one possible form ofgeological instrument 30 that can be incorporated in embodiments of the disclosed method and system. These embodiments are described in the context of the boreholes being blast holes. Theinstrument 30 comprises atubular body 32. Thebody 32 may conveniently have the same physical dimensions as thedrill string 18 used for drilling the blast holes. Indeed thebody 32 may be considered to comprise in substance adrill string 18 without a drill bit. Housed within theinstrument 30 is a plurality of measurement sensors and devices for acquiring a range of geological data (i.e. geophysical, petro-physical, mineralogical or compositional data and hole geometry data) pertaining to the strata in the ground in which the blast holes are drilled. The data includes but is not limited to any one, or a combination of any two or more of the following: -
- a. gamma radiation emitted by material in the hole
- b. density of material in the hole
- c. reflectivity of electromagnetic radiation
- d. reflectivity of acoustic or ultrasonic waves
- e. magnetic susceptibility of material in the hole
- f. electrical resistivity/conductivity/impedance of material in the hole
- g. magnetic vector field
- h. hole dip
- i. Hole wall temperature
- j. Sonic velocity
- k. Contact hardness
- l. hole azimuth
- m. hole diameter
- n. hole profile
- o. hole volume.
- p. water level
- The
instrument 30 includes ahole contact mechanism 34 which is arranged to physically contact the inner circumferential wall of the blast hole at two or more locations spaced about a longitudinal axis of the hole. Ideally these locations are equally spaced around the longitudinal axis. For example when thehole contact mechanism 34 contacts a blast hole at two locations ideally these locations are diametrically opposed. - The hole contact mechanism comprises a plurality of
arms 36 biased from theinstrument body 32 into contact with the blast hole wall. When initially lowering theinstrument 30 into the blast hole thearms 36 are held in a retracted position parallel to the length of thebody 32. Once theinstrument 30 reaches a bottom of the blast hole thearms 36 are released enabling the applied bias to push them into contact with the wall of the blast hole. Thearms 36 may be released by way of a mechanical latch operated by contact of theinstrument 30 with the bottom of the hole. Alternately a latch may be released electronically. In any event the manner of releasing thearms 36 is not critical to the overall functioning of theinstrument 30 and more specifically the disclosed system and method. - The
hole contact mechanism 34 enables measurements of the hole diameter at different depths as well as more generally hole profile measurements. By also measuring or otherwise acquiring hole depth either through use of theinstrument 30, or as part of MWD data the volume of the hole can also be determined. The profile measurements may for example detect the presence and location of a fissure or void. This is useful information as it foreshadows a potential pressure leakage path for the explosives material. Armed with this information a blasting technician may attempt a seal the fissure prior to charging the hole, or vary the charge profile to take account of the potential pressure leakage path. - The
hole contact mechanism 34/arms 36 may also be arranged to facilitate the measurement of hardness of the material forming the wall of the blast hole. This can be achieved for example by mounting scratching devices on thearms 36 which are in turn coupled with strain or pressure gauges. Thus when theinstrument 30 is retracted from the blast hole with thearms 36 biased into contact with the blast hole wall, measurements relating to the hardness of the material the hole wall can be acquired. - The present embodiment of the
hole contact mechanism 34 which includes the biasedarms 36 can only be used while theinstrument 30 is being retrieved from a blast hole. However other forms of thehole contact mechanism 34 could be used during either one or both of lowering and retrieving theinstrument 30. An example of this would be where eacharm 36 is replaced with two arms, one arm being pivotally connected to thebody 32 at one end, pivotally connected at an opposite end to the second arm with the opposite end of the second arm being slidably coupled to thebody 32. - The
instrument 30 may also include one ormore windows 38 made from non-metallic materials such as glass or plastics. Thewindows 38 can be located to align with specific sensors or detectors which require material transparency for operations such as magnetic susceptibility sensors. - The
instrument 30 may also include a data transmission system to enable acquired data to be transmitted to a data receiver located remote for theinstrument 30. The data receiver may include a data storage system and/or a data processing system. Alternately or additionally theinstrument 30 may have on-board data storage or processing capability. The data transmission system can be arranged to stream data in real time to the data receiver or alternately transmit the data in raw or processed form which is stored on board ofinstrument 30 after theinstrument 30 has been retrieved from a blast hole. - Power for operating the
instrument 30 may be provided in several different ways. These include a direct hardwired connection to a battery or generator of thedrill rig 10; batteries within theinstrument 30 itself; or by a power generator within theinstrument 30. The power generator withininstrument 30 can include for example an electric generator which is provided with torque via therotation head 16. The electric generator if provided may be arranged to charge a rechargeable battery withininstrument 30 which in turn provides electrical power for all of the senses devices and equipment which are in or otherwise constitute theinstrument 30. - One embodiment of the disclosed system is a blast hole drilling and
data collection system 40. Thissystem 40 comprises a vehicle in the form of thedrill rig 10 which carries both adrill string 18 capable of drilling a bore hole (which in this embodiment is a blast hole) and theinstrument 30. Conveniently theinstrument 30 is held on a rack on thedrill tower 14. With reference to the Figures this may be considered as the combination of features shown inFIGS. 1 and 3 , where theinstrument 30 is mounted on thetower 14 in addition to thedrill string 18. - A handling system is also provided on the vehicle and associated with the
drill string 18 and the geophysical instrument. The handling system is arranged to: move thedrill string 18 into and out of a blast hole and subsequently move the instrument into and out of the blast hole. The handling system can be constituted by a combination of the rams which provide the pull down or pull back to thedrill string 18; and a rod changer which disconnects the drill string from therotation head 16 and subsequently connects theinstrument 30 to therotation head 16. This is done without moving thedrill rig 10 or thetower 14. Therefore theinstrument 30 is automatically aligned with the blast hole that was previously produced by thedrill string 18. - While the
instrument 30 is attached to the rotation head there is no need or necessity for the rotation head to be powered to cause rotation of theinstrument 30. However the option remains available to activate the rotation head while theinstrument 30 is being lowered into and/or from the retrieved blast hole. - An
ordinary drill rig 10 can be converted into an embodiment of the disclosed blast hole drilling and borehole data collection system by mounting ofinstrument 30 onto thedrill rig 10. Theinstrument 30 can be operated to acquire data either while being lowered into the blast hole, while being retracted from the blast hole or both. - Optionally the blast hole drilling and
data collection system 40 can include a data processing system capable of processing the acquired geological data to map strata boundaries over a region in which the blast hole is drilled. This data processing system may be remote from theinstrument 30 itself. In particular this data processing system may be cloud-based, located in a remote control centre, or located on board an explosives truck or the rig itself. When the data processing system is remote from theinstrument 30, the transmission system ofinstrument 30 transmits the acquired geological data to the data processing system. - The blast hole drilling and
data collection system 40 can be further arranged to provide drill rig data which can be subsequently correlated with the geological data and used by the data processing system in analysing the ground structure and composition and subsequently mapping the strata boundaries. The drill rig data can be transmitted by thedrill rig 10 independently of theinstrument 30. Alternately the drill rig data can be fed to theinstrument 30 and correlated in real time with the geological data. In that event the combination of the drill rig data and the geological data can be transmitted or otherwise provided to the data processor or analytic platform. -
FIGS. 4 and 5 depict different forms of maps that may be generated using the geological data by itself or in conjunction with the drill rig data.FIGS. 4 and 5 is a 2D overlay map of material property types showing boundaries between regions A, B, C and D which have strata of different characteristics which may require different charging profiles for blast holes of the same depth and configuration.FIG. 5 is a three-dimensional map of part of a bench in which regions containing strata of different characteristics are highlighted in different colours. The blast hole drilling anddata collection system 40 can be arranged to acquire the geological data and/or the drill rig data at regular depth intervals over the entire depth of the blast hole. For example the data can be acquired at, but not limited to, depth intervals of 1 cm, 5 cm, 10 cm, or 20 cm. This can be achieved by continuously acquiring the data but storing or transmitting the data at successive prescribed depth intervals. - Finally the data processing system, having acquired the geological data by itself or in conjunction with the drill rig data can be programmed or otherwise arranged to determine a charge profile for explosive material to be deposited in to the blast hole. The charge profile can be provided to an explosives truck to either enable an operator of the truck to charge respective boreholes in accordance with their charge profile; or to facilitate autonomous operation of the explosives truck for charging the boreholes.
- A further embodiment of the disclosed system is in the form of a blast
hole charging system 50 shown inFIG. 6 . Thesystem 50 is capable of charging a blast hole with explosive material and in broad terms comprises a combination ofgeological instrument 30 described above, avehicle 52 carrying a supply of explosive (i.e. an explosives truck), a handling system mounted on the vehicle and associated with theinstrument 30 for moving theinstrument 30 into and out of the blast hole. The handling system mounted on thevehicle 52 for loweringinstrument 30 into the blast hole and subsequently retractinginstrument 30 from the blast hole. The handling system may take many different forms including for example atower 14 with a winch or ram, or a boom with a pulley and cable winch system. - The
instrument 30 operates in exactly the same manner as described above in relation to the blast hole drilling anddata collection system 40 in terms of acquiring geological data relating to the blast hole. Such data is acquired wheninstrument 30 is lowered into or removed from the blast hole, or both. - However in this embodiment no drill rig data is generated by the
explosives carrying vehicle 52. Such drill rig data may nonetheless be available to the blasthole charging system 50. For example the drill rig data may have been transmitted by adrill rig 10 to a remote data receiver. The explosives vehicle may be arranged to electronically source the drill rig data from the data receiver and subsequently correlate that data with the geological data acquired by theinstrument 30. - A data processing system processes the geological data, and if available or if used, the drill rig data, to design an optimised charging profile for each blast hole. The charging profile can be used either by an operator of the explosives truck to charge the hole, or by a control system of the explosives truck to facilitate the autonomous charging of the boreholes. More particularly the data processing system is arranged to design a charge profile for the blast hole and provide signals to the control system to facilitate the discharge of explosive material to accord with the charge profile.
- The explosives vehicle in the blast hole charging system may carry a plurality of explosives which differ in terms of their explosive power. In this way different blast holes can be charged with different explosives depending on the characteristics of the strata surrounding the blast holes, or alternately a blast hole may be charged with two or more different explosives at different depths to accord with for example strata boundaries.
- Thus in summary the
instrument 30 can be carried by either adrill rig 10 or by anexplosives carrying vehicle 52. The geological data acquired by theinstrument 30 is the same in both instances. The geological data can then be used either by itself or in conjunction with drill rig data to design a charging profile for each of the blast holes. This data is specific to each blast hole. The blast holes can be readily identified by their GPS position. The GPS position may be acquired by the drill rig at the time of drilling the blast holes with or without theinstrument 30. However theinstrument 30 can also be provided with its own GPS. Thus wheninstrument 30 is incorporated in the blast hole drilling anddata collection system 40, theinstrument 30 rather than the drill rig can acquire GPS data for each of the blast holes. In the event the blasthole charging system 50, the GPS in theinstrument 30 can be used to identify individual blast hole is being charged; or alternately a GPS system on the explosives truck can identify specific blast holes. The charging profile is used by an operator of the explosives truck either directly or via a control system on the explosives truck to load the blast holes with explosive material according to their specific charge profile. - In the blast
hole charging system 50 and on-board or remote processor can process the geological data acquired by theinstrument 30 in near real-time and provide information to the blasting technician to either enable the determination of a charge profile or to automatically determine a charge profile. This may be achieved in the time taken to withdraw theinstrument 30 from the hole and park it in an appropriate position on the truck. In this way there is minimal impact on the workflow of the blasting technician. Also as previously mentioned thesystem 50 may be arranged so that the charge hole profile autonomously charges the hole with explosive material in accordance with the charge profile. - Whilst a number of specific method and system embodiments have been described, it should be appreciated that method and system maybe embodied in many other forms. For example in relation to the description of the blast hole drilling and
data collection system 40 which utilises the same drill rig is used for drilling the blast hole a mechanism or system for handling theinstrument 30 can take many different forms. In a drill rig which does not have a carousel type system for changing the drill string and additional handling system can be fitted to the drill rig to enable theinstrument 30 to be lowered into and removed from the blast hole after the blast hole has been drilled. Alternately in a rig which has an automated bit changing system theinstrument 30 may be installed in a dummy bit housing and screwed onto existing drill pipe so that the bit and theinstrument 30 can be interchanged. - Further, the above embodiments are described in the context of blast holes and more particularly blast holes formed in an open cut or aboveground site. However embodiments of the disclosed method and system are not limited to blast holes nor to open cut or aboveground applications. For example embodiments of the system may be mounted on drill rigs/machines in underground mining for example to develop a drive or stope. An example of this is illustrated in
FIG. 7 which shows a rig 10 u drilling holes in astope 60 of anunderground mine 62. The rig 10 u is in a different form and configuration to therig 10 used for the open cut mine shown inFIG. 1 but both rigs have the same purpose and functionality namely to drill holes into the ground. For this purpose the rig 10 u ofFIG. 7 also has at least one arm 64 provided with adrill 66 connectable to a rotary drive. The arm 64 in effect replicates the function of thedrill tower 14 for supporting the drill string/rod while being rotated as well as applying a penetration force to advance the drill into the ground (the equivalent of pull down applied by rams or winches on the tower 14). In the underground application the bore holes B may be inclined upward of the horizontal. - Further irrespective of whether the system is used for aboveground or underground rigs the rigs may be single pass or multi-pass rigs. In the case of a multi-pass rig the rig will include a carousel or other type of system to enable the coupling of additional drill rods. In this
scenario instrument 30 can be provided in the carousel and in effect utilised as the initial rod of the drill string. - Additionally the geological data acquired is not limited to use for optimising the charge profile for a blast hole. The geological data may be used for other applications. This includes for example using the geological data to classify material in a bench so that after fragmentation and at the time of mucking the location of material of specific characteristics is known. In this way for example material of different grades or composition can be sorted at the time of mucking and sent to different processing streams. Alternately the downstream processing conditions may be varied in anticipation of specific material characteristics (for example carbonate content) to maximise target mineral extraction. In such applications the boreholes need not necessarily or primarily be blast holes. The boreholes may simply be exploration holes.
- Additionally an
instrument 30 may be used both on the blasthole drill rig 10 and a similarlyinstrument 30 used on theexplosives truck 52. Accordingly two sets of geophysical data may be acquired for the same blast hole at different times. This enables auditing of the quality of the acquired geophysical data. The a substantive difference in the geophysical data required from the same blast hole may be indicative of for example of a hole collapse, the development of a fissure or void, or indeed afaulty instrument 30 at one of thedrill rig 10 and theexplosives truck 52. In the latter case further independent measurement can determine whichinstrument 30 provided the accurate information for use in determining the charge profile. - In the claims which follow, and in the preceding description, except where the context requires otherwise due to express language or necessary implication, the word “comprise” and variations such as “comprises” or “comprising” are used in any clue inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the method and system disclosed herein.
Claims (20)
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US17/015,253 US20200408091A1 (en) | 2017-06-27 | 2020-09-09 | Method and system for acquiring geological data from a bore hole |
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AU2017902485A AU2017902485A0 (en) | 2017-06-27 | Method and system for acquiring geological data from a bore hole | |
AU2017902485 | 2017-06-27 | ||
PCT/AU2018/050654 WO2019000037A1 (en) | 2017-06-27 | 2018-06-27 | Method and system for acquiring geological data from a bore hole |
US201916627288A | 2019-12-28 | 2019-12-28 | |
US17/015,253 US20200408091A1 (en) | 2017-06-27 | 2020-09-09 | Method and system for acquiring geological data from a bore hole |
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US16/627,288 Continuation US11162359B2 (en) | 2017-06-27 | 2018-06-27 | Method and system for acquiring geological data from a bore hole |
PCT/AU2018/050654 Continuation WO2019000037A1 (en) | 2017-06-27 | 2018-06-27 | Method and system for acquiring geological data from a bore hole |
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US17/015,253 Abandoned US20200408091A1 (en) | 2017-06-27 | 2020-09-09 | Method and system for acquiring geological data from a bore hole |
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US11913288B2 (en) | 2021-01-13 | 2024-02-27 | Epiroc Drilling Solutions, Llc | Drilling machine for angled drilling |
CN114352191B (en) * | 2022-01-11 | 2023-11-21 | 北京三一智造科技有限公司 | Stratum weakening pretreatment method and pore-forming method |
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US4282523A (en) * | 1977-11-02 | 1981-08-04 | Dresser Industries, Inc. | Method and apparatus for logging inclined earth boreholes |
US7669668B2 (en) * | 2004-12-01 | 2010-03-02 | Schlumberger Technology Corporation | System, apparatus, and method of conducting measurements of a borehole |
FR2944048A1 (en) * | 2009-04-02 | 2010-10-08 | Geoservices Equipements | INTERVENTION DEVICE IN A FLUID OPERATING WELL, OPERATING PLANT AND ASSOCIATED METHOD |
MY158679A (en) * | 2009-05-27 | 2016-10-31 | Halliburton Energy Services Inc | Vibration detection in a drill string based on multi-positioned sensors |
US8261855B2 (en) * | 2009-11-11 | 2012-09-11 | Flanders Electric, Ltd. | Methods and systems for drilling boreholes |
AU2011213479B2 (en) * | 2010-02-05 | 2015-03-05 | Technological Resources Pty. Limited | Rock property measurements while drilling |
US20130169961A1 (en) * | 2010-03-29 | 2013-07-04 | Datatrace Dna Pty Limited | System for classification of materials using laser induced breakdown spectroscopy |
AU2010227086B2 (en) * | 2010-10-11 | 2012-09-13 | Crc Ore Ltd | A Method of Beneficiating Minerals |
WO2012068629A1 (en) * | 2010-11-25 | 2012-05-31 | Technological Resources Pty. Limited | Apparatus and method for obtaining information from drilled holes for mining |
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AU2023219947A1 (en) | 2023-09-14 |
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