WO2010148435A1 - Système d'enregistrement rapide de données d'échantillon de carotte de roche - Google Patents

Système d'enregistrement rapide de données d'échantillon de carotte de roche Download PDF

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Publication number
WO2010148435A1
WO2010148435A1 PCT/AU2010/000776 AU2010000776W WO2010148435A1 WO 2010148435 A1 WO2010148435 A1 WO 2010148435A1 AU 2010000776 W AU2010000776 W AU 2010000776W WO 2010148435 A1 WO2010148435 A1 WO 2010148435A1
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WO
WIPO (PCT)
Prior art keywords
core
segment
logging system
further including
computer
Prior art date
Application number
PCT/AU2010/000776
Other languages
English (en)
Inventor
Ian Gray
Original Assignee
Ian Gray
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2009902884A external-priority patent/AU2009902884A0/en
Application filed by Ian Gray filed Critical Ian Gray
Publication of WO2010148435A1 publication Critical patent/WO2010148435A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/005—Above ground means for handling the core, e.g. for extracting the core from the core barrel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00722—Communications; Identification
    • G01N35/00732—Identification of carriers, materials or components in automatic analysers

Definitions

  • Geological samples are obtained from a formation to ascertain the particular parameters thereof and thus to obtain an indication of the makeup of the formation.
  • the formation is drilled with a coring bit to obtain samples of the formation.
  • the samples of the formation comprise segments thereof which, when analysed together, represent the makeup of the entire part of the formation drilled.
  • a substantial length of a core may be obtained during the drilling process.
  • the process of logging the core is an important task in order to ensure the results accurately represent the actual geological formation which was drilled.
  • the usual process is that the core is cut to a manageable length (i.e., a core segment) and pulled to the surface either by withdrawal of the drill rods, or by the use of a wire line retrieval system.
  • the core segment may be retrieved at a significantly greater rate than in the former, and may exhaust the capability of the geologist or other person to log the core segment data and keep up with the rate of drilling.
  • the core segment is pushed out of the core barrel into splits which form the inner core holding system of a triple tube core barrel.
  • the core section is pushed from the tube of a double tube core barrel into a core holder which generally has the form of splits.
  • splits may be described as a split tube, which is used to hold the core segment.
  • the core segment data may be logged either by the geologist or user as it is supported in the split, or by removing the core segment from the split and logging it while in a core tray.
  • the core segment length and sub segment length is preferably measured while the core segment is in the splits and before it is further disturbed by movement onto core trays.
  • By comparing drilling depths with the top and bottom of the retrieved core segment it is possible to compare this data with the core length, and work out likely core loss zones, and the depth information of the core segment.
  • the logging is usually completed with the use of a conventional tape measure by the geologist or other suitably qualified person measuring the core segment.
  • the measurements of the individual segments of the entire drilling core are either added together to calculate the length of the overall core, or the tape measure is placed next to the core in a position where the fractions of length correspond to expected drilling length, minus some offset.
  • the measuring process to arrive at respective depths may be subject to a level of error of direct measurement and/or human error.
  • the core segment In addition to logging information concerning the core, it is very desirable to photograph the features of the core segment. This is generally accomplished by placing the core into a core tray, placing depth markers at breaks in the core, and then photographing the core. The core is photographed either with a hand-held camera or preferably by placing the core segment in a frame with a camera mounted perpendicular to it at a fixed height. The camera can be pre- focused and core lighting arranged to provide suitable core photos. These core photographs can then be used for comparison with the core log, or may with some effort be separated and re-fitted to be joined with the core log.
  • a core logging system captures data of the parameters of the core segment and stores the same in a computer. At the same time, depth information is captured which relates the core sample parameters at a specific depth from which the core segment was drilled.
  • a roller engages a split support on which the core segment rests, and as the split support and thus the core segment is moved along the roller table, the roller rotates a rotary encoder which automatically measures lateral displacement of the core segment.
  • the split may run directly on the roller while in yet another embodiment the core may be placed in a core tray which runs on a series of rollers including the roller used to measure displacement of the core segment.
  • a visual readout of the rotary encoder can be photographed together with the specific parameter of the core so that the photograph provides the core parameter of interest, as well as the downhole depth at which that part of the core segment was located when drilled.
  • the wheel and rotary encoder can be replaced by another measuring device, which is located on the base of the split support and detected by optical or magnetic means, such as an electronic tape measure or encoded sections.
  • a core logging system which includes a support for supporting a core segment, and a table on which the support and the core segment are moved through the core logging system.
  • An electronic position measuring device senses movement of the support with respect to the table, and provides distance measurements respectively.
  • a computer receives and stores the distance measurements.
  • a core logging system which includes split support apparatus for supporting a core segment and to prevent rotation of the core segment.
  • the split support apparatus and the core segment are moved on a table through the core logging system.
  • a wheel containing a rim which is engaged with the split support apparatus, is attached so that the wheel rotates in response to movement of the split support apparatus.
  • An electronic encoder coupled to the wheel via a shaft, is attached in order to sense movement of the split support apparatus with respect to the table, and provide distance measurements for such.
  • a computer receives and stores the distance measurements.
  • a method of logging information from a core sample which includes moving a core sample from a reference position to a location at which photographic detail of the core can be obtained. The distance the core sample moved from the reference position to the position at which photographic detail can be obtained is measured. The distance information is displayed on a visual display which is located at the position at which the photographic detail is obtained. Digital information pertaining to the core sample is obtained and the distance information from the visual display is obtained at the same time so that the distance information is correlated to the portion of the core sample which was photographed.
  • the start interval of the lithology is obtained by the user triggering the computer to obtain depth from its internal record and from the distance measuring device (the wheel).
  • the lithology of the section is entered by the user and then the core is moved to its end or a lithological change depth, where a depth measurement is again triggered by the user.
  • the same procedure is used either separately or concurrently for fractures.
  • the user triggers the computer to obtain the depth at the start of the fracture, enters the fracture type via the keyboard or menu driven software, and then triggers the computer to obtain the depth at the end of the fracture.
  • the angle of the fracture relative to the core can be derived from both the start and finish depths of the fracture, and a knowledge of the core diameter.
  • information on the core which has been entered by the user, the depth information and the photographs of the core are stored in a database held on the computer.
  • Fig. 1 shows a side elevational view of the core logging system according to an embodiment of the invention.
  • Fig. 2 is a cross-sectional view of a core segment supported in a split and support (cradle) arrangement, as engaged with depth encoding apparatus.
  • Fig. 3 is a flow chart showing the process of recording information on the core lithology or fractures.
  • Fig. 1 illustrates a left and right roller frame, one of which is identified as numeral (1).
  • Each roller frame (1) is equipped with a number of rollers (3), much like a conventional roller conveyor.
  • the roller frames (1) are supported on respective legs (4) at the outer ends thereof, and are attached at the inner ends thereof to a central logging table (5).
  • the central logging table (5) includes rollers (3), and is supported on legs (2).
  • the frames (1) and the logging table (5) are arranged so that a split support (12) can be moved on the rollers (3) through the core logging system.
  • the logging table (5) also includes a wheel (6) which is spring loaded against the table (5) and fractionally biased against the base of the split support (12).
  • the wheel (6) when the split support (12) is moved laterally on the rollers (3), the wheel (6) also rotates in a corresponding manner.
  • the split support (12) carries with it a split (13) and the core segment (14) therein. This is illustrated in more detail in the cross section of Fig. 2.
  • the logging table (5) has provision for a laptop or desktop computer (8), with a screen for displaying log data.
  • the computer screen (per 8) is visible by the operator who either sits or stands in front of the logging table (5).
  • the logging table (5) also includes a support base on which a computer keyboard (10) and mouse (11) are placed.
  • Affixed to the logging table (5) is a pointer (7) which marks a reference location of the position of the core segment (14) during longitudinal or length measurement thereof.
  • a camera (9) is located above the logging table (5) so as to permit the photography of the segment of core (14) situated below.
  • the camera (9) is preferably digital and produces digital data of the visual features of the core segment (14) as it is laterally moved on the logging table (5).
  • the digital data captured by the camera (9) can be stored in the computer (8).
  • Fig. 2 illustrates the engagement of the wheel (6) with the underside of the base of the split support (12).
  • the wheel (6) includes a rubberised or elastomeric rim (15) to ensure a frictional and non-slip engagement with the base of the split support (12).
  • the axle of the wheel (6) is coupled to an electronic angular encoder (16) or similar encoder which translates the amount of lateral movement of the split support (12) on the logging table (5) into a corresponding distance or length.
  • the output of the encoder (16) is an electrical signal coupled to the computer (8) so that the digital signals can be processed electronically, if need be, and converted into a distance or length.
  • the output of the encoder (16) is a signal representative of the true distance by which the split support (12) is moved, then such signal need only be stored in the memory of the computer (8).
  • the measured distance by which the split support (12) moves is a function of the diameter of the wheel (6).
  • the output of the encoder (16) may have to be processed to take into consideration the diameter of the wheel (6) in order to provide an accurate distance of movement of the split support (12).
  • the wheel (6) and the encoder (16) coupled thereto can be mounted on a floating mounting plate (18) which is spring biased with one or more springs (19) so that the elastomeric rim (15) of the wheel (6) remains in contact with the bottom of the split support (12).
  • the computer (8) produces a display (17) to provide a visual indication of the distance or depth parameters.
  • the axis of the wheel (6) is aligned with the reference pointer (7 in Fig. 1) so distances from the reference pointer (7 in Fig. 1) can be measured and displayed.
  • the wheel (6) could be positioned so as to engage the split support (12) other than on the bottom base thereof.
  • the geologist or user can signal the computer (8) via the keyboard (10) when the core segment (14) is aligned with the reference point (7) so that the depth measurement begins.
  • a light emitter (not shown) and a light receiver (not shown) can be used so that when the frontal portion of the core segment
  • the computer (8) is automatically triggered to begin the depth measurement.
  • the computer (8) ends the depth measurement, and rudimentarily calculates the total depth of the core segment (14). It can be appreciated that if the split support (12) and the core segment (14) supported thereon are moved back and forth during the logging operation, the computer (8) can automatically add or subtract distances from the accumulated distance measured at that time, thereby maintaining an accurate reading of the depth or distance by which the core segment (14) was moved in a single direction through the logging station.
  • the computer (8) stores the depth parameter of each core segment (14), the depth parameter of successive core segments (14) can be recorded successively as to actuate the depth from which the core segments (14) were retrieved.
  • the various depth measurements of the features of the first core segment (14) would be identified by the computer (8) as being between zero and three metres.
  • the various depth measurements would be stored as between three and six metres, and so on with the remaining core segments (14) retrieved.
  • the actual depth of each core segment (-14) could also be displayed on a second visual display (17 in Fig. 2) so as to also be captured in the field of vision of the camera (9).
  • each core segment (14) is taken from the core barrel, preferably in the splits (13) associated with the core barrel, or alternatively in a set of splits
  • the split support section (12), the contained splits (13) and core segment (14) are laid on the roller beds of the frame rollers (1) and the logging table (5) so that it may be easily moved through the logging station. It should be noted that in another embodiment of the invention the split support section (12) is omitted and the split (13) is run directly on the rollers (3) which in this case are shaped to accommodate its curved section.
  • Attached to the roller bed of the logging table (5) is a measuring device which comprises the spring-loaded wheel (6).
  • the wheel (6) frictionally engages with the bottom of the split support (12) so that relative movement of the split support (12), and thus the core segment (14), may be made by manually sliding the split support (12) and the core segment
  • the computer (8) and the camera (9) are held at a fixed height above the core segment (14) as it is moved on the roller bed (1) of the logging table (5).
  • the computer (8) receives digital distance or depth information from the rotary encoder (16) and may be used to trigger the camera (9) and receive photographs or digital images from the camera (9).
  • the core segment (14) is either placed directly in the split (13) from the core barrel, or in a split (13) to which it has been transferred.
  • the split (13) is placed on the split support (12) and the split support (12) is moved with the core segment (14) to an end of the logging station which would normally correspond to the start of the core logging run.
  • the depth of the top of the core segment (14) is then entered onto the computer (8).
  • the computer (8) also reads the position translated by the rotary encoder (16).
  • the core segment (14) is then moved along the roller bed (1), together with the split (13) and the split support (12), onto the roller bed (1) of the logging table (5).
  • Each change in lithology of the core segment (14) is entered into the computer (8) by the geologist or user.
  • each change in lithology of the core segment (14) is associated with its respective location on the core segment (14) by causing the computer (8) to read the relative length or distance changes on the split support (12), as provided by the encoder (16).
  • the lithology type and other core features are entered by the geologist or user into the computer (8) using suitable software presently available. The same procedure can be used to obtain information on core fractures.
  • the start and finish of each fracture can be measured using the rotary encoder (16) and computer (8) while information describing that fracture can be entered by the geologist or user using the software. So as to avoid the process of physically entering core information via the keyboard (10) of the computer (8), data entry can be achieved by the use of either a mouse (11), touch screen (not shown) or data tablet (not shown) entry.
  • a static reference pointer (7) which references the position of the core segment (14) to the distance measurement obtained by the rotary encoder (16).
  • the camera (9) is used to photograph the features of the core segment (14) at set distances across the roller table (5).
  • the computer (8) reads the rotary encoder (16) and generates a depth position which is shown on the computer's (8) electronic display (17 in Fig. 2) or displays located next to the core segment (14) and in the field of vision of the camera (9).
  • the readout display may be photographed by the camera (9) with the core segment (14) so as to provide a depth indicator on the photograph.
  • the reference position indicator (7) can also be captured in the photograph to show the relative position of the core segment (14).
  • the photographs are ideally captured directly from the camera (9) by the computer (8) and the software is then used to present the core log, whereby the photographic image of the core segment (14) may be reported together with the written description of the core segment (14).
  • the split support (12) and thus the core segment (14) can be manually moved through the logging station by the geologist or user.
  • the split support (12) could be connected to a linear movement mechanism (not shown) to move the split support (12), and thus the core segment (14), through the logging station under control of the geologist or user.
  • the geologist or user pushes a switch button when it is desired to move the split support (12), and the linear movement mechanism is then activated to move the split support (12) at a given speed until the switch button (not shown) is released.
  • the geologist or user moves the split support (12) in the reverse direction.
  • the movement of the split support (12) by the linear movement mechanism could also be accomplished using the keyboard (10) or a joystick (not shown) which causes the computer
  • the linear movement mechanism could be of many different types, including a reversible motor and chain drive which are coupled to the split support (12).
  • each core segment (14) held in the splits (13) there is a need to record the final length of the core segment (14) and to reconcile the final length (depth) with the core length which was drilled. This is achieved by using both the manual depth entry and a reading from the rotary encoder (16). Further reconciliation of core depths may be achieved by comparing the core log with geophysical log information and by adjusting the recorded position of the core segment (14) accordingly. This process may be achieved utilising software which has been designed for such a purpose.
  • Fig 3 presents a flow chart of the logic used to derive the record of depth versus lithology or fractures.
  • the core segment is placed on the core logging table with the start of the core segment under the reference pointer.
  • the user enters into the computer the depth at the start of the core segment.
  • the user triggers the depth recording software to record the depth.
  • the user enters the lithology type for the next section.
  • the user moves the core segment to the end of the lithological unit or to the end of the core segment.
  • the user triggers the software to obtain a depth measurement.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention porte sur un système de diagraphie dans lequel un segment de la carotte est déplacé latéralement dans une station de diagraphie. Un codeur rotatif mesure le déplacement du segment de carotte et renvoie à un ordinateur des données de mesure de profondeur. Une caméra fournit des images du segment de carotte, ainsi que des données provenant du codeur rotatif, concernant les mesures de profondeur du segment de carotte obtenu. Les données d'image du segment de carotte et les données de profondeur associées sont mémorisées ensemble par un ordinateur, conjointement avec des informations descriptives concernant la carotte, et associées à la profondeur, introduites par l'utilisateur.
PCT/AU2010/000776 2009-06-23 2010-06-23 Système d'enregistrement rapide de données d'échantillon de carotte de roche WO2010148435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2009902884 2009-06-23
AU2009902884A AU2009902884A0 (en) 2009-06-23 A System for Rapid Logging of Rock Core

Publications (1)

Publication Number Publication Date
WO2010148435A1 true WO2010148435A1 (fr) 2010-12-29

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269557A (zh) * 2011-06-21 2011-12-07 中国科学院地质与地球物理研究所 一种岩芯裂隙倾角测量方法及其测量装置
WO2017049361A1 (fr) 2015-09-23 2017-03-30 Resmed Limited Interface de patient avec structure de formation d'étanchéité ayant une épaisseur variable
WO2017155450A1 (fr) * 2016-03-05 2017-09-14 Minalyze Ab Système et procédé d'analyse d'échantillons de carotte de sondage
US9810810B2 (en) 2014-05-02 2017-11-07 Lhb Soluções Em Informações E Métodos Ltda. System and process to describe vertical sequences of rocks using gestures
CN113008644A (zh) * 2020-11-06 2021-06-22 长江大学 全岩光片自动化制备方法
US11047771B2 (en) * 2017-03-06 2021-06-29 Coastline Technologies, Inc. Device, system and method for correlating core sample zones with actual subterranean depth
CN115127919A (zh) * 2022-08-25 2022-09-30 北京科技大学 一种煤岩固气耦合多物理量同步测试实验装置
US11841355B2 (en) 2020-11-06 2023-12-12 Yangtze University Intelligent quantitative microscopic identification system and intelligent identification method for whole rock polished sections

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616134A (en) * 1984-07-17 1986-10-07 Chevron Research Company High resolution geologic sample scanning apparatus and process of scanning geologic samples
US4623792A (en) * 1984-03-23 1986-11-18 General Mining Union Corporation Limited Core logging
US4852182A (en) * 1984-05-11 1989-07-25 Institut Francais Du Petrole Process for obtaining images of geological samples with a view to their optical analysis and a device for its implementation
US4899219A (en) * 1988-10-31 1990-02-06 Amoco Corporation Macroview and microview video record of core
CA2370630A1 (fr) * 1999-04-19 2000-10-26 Martin, Jean-Pierre Dispositif permettant d'orienter des carottes de forage
WO2005116392A1 (fr) * 2004-05-26 2005-12-08 John Lisle Orpen Analyse de carotte

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623792A (en) * 1984-03-23 1986-11-18 General Mining Union Corporation Limited Core logging
US4852182A (en) * 1984-05-11 1989-07-25 Institut Francais Du Petrole Process for obtaining images of geological samples with a view to their optical analysis and a device for its implementation
US4616134A (en) * 1984-07-17 1986-10-07 Chevron Research Company High resolution geologic sample scanning apparatus and process of scanning geologic samples
US4899219A (en) * 1988-10-31 1990-02-06 Amoco Corporation Macroview and microview video record of core
CA2370630A1 (fr) * 1999-04-19 2000-10-26 Martin, Jean-Pierre Dispositif permettant d'orienter des carottes de forage
WO2005116392A1 (fr) * 2004-05-26 2005-12-08 John Lisle Orpen Analyse de carotte

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269557A (zh) * 2011-06-21 2011-12-07 中国科学院地质与地球物理研究所 一种岩芯裂隙倾角测量方法及其测量装置
US9810810B2 (en) 2014-05-02 2017-11-07 Lhb Soluções Em Informações E Métodos Ltda. System and process to describe vertical sequences of rocks using gestures
WO2017049361A1 (fr) 2015-09-23 2017-03-30 Resmed Limited Interface de patient avec structure de formation d'étanchéité ayant une épaisseur variable
WO2017155450A1 (fr) * 2016-03-05 2017-09-14 Minalyze Ab Système et procédé d'analyse d'échantillons de carotte de sondage
US11105785B2 (en) 2016-03-05 2021-08-31 Minalyze Ab System and method for analyzing drill core samples
US11047771B2 (en) * 2017-03-06 2021-06-29 Coastline Technologies, Inc. Device, system and method for correlating core sample zones with actual subterranean depth
US11680874B2 (en) 2017-03-06 2023-06-20 Coastline Technologies Inc. Device, system and method for correlating core sample zones with actual subterranean depth
CN113008644A (zh) * 2020-11-06 2021-06-22 长江大学 全岩光片自动化制备方法
US11841355B2 (en) 2020-11-06 2023-12-12 Yangtze University Intelligent quantitative microscopic identification system and intelligent identification method for whole rock polished sections
CN115127919A (zh) * 2022-08-25 2022-09-30 北京科技大学 一种煤岩固气耦合多物理量同步测试实验装置

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