MX2011008618A

MX2011008618A - Modular core orientation system.

Info

Publication number: MX2011008618A
Application number: MX2011008618A
Authority: MX
Inventors: Richard John Parfitt
Original assignee: Imdex Technology Australia Pty Ltd
Priority date: 2009-02-17
Filing date: 2010-02-16
Publication date: 2011-11-18
Also published as: AU2010215060A1; EP2398999A1; WO2010094060A1; AP2011005868A0; AR075435A1; BRPI1005993A2; CA2752390A1; US20120037421A1

Abstract

A core sample orientation system (10) comprising a first portion (11) and a second portion (12). The first portion (11) comprises a downhole unit adapted to be connected to a core tube of a core drill, and the second portion (12) comprises a control unit. The downhole unit (11) is adapted for cooperation with a core tube for recording data relating to the orientation of the core tube, and the control unit (12) is adapted to cooperate with the downhole unit to receive and process orientation data from the downhole unit and provide an indication of the orientation of a core sample within the core tube at a time prior to separation of the core sample from the underground environment from which it was obtained. The downhole unit (11) is configured to cooperate with the control unit (12) to establish an operative connection therebetween. More particularly, the downhole unit (11) and the control unit (12) are configured to provide a coupling (23) for releasably connecting them together in a manner allowing selective rotation therebetween. The coupling (23) comprises a combination of magnetic coupling and mechanical coupling.

Description

CYLINDER DRILLING ORIENTATION SYSTEM DESCRIPTIVE MEMORY This invention relates to a sample orientation of cylinder perforation. More particularly, the invention relates to a cylinder bore sample orientation system to provide an indication of the orientation of a cylinder borehole sample related to the soil environment from which the drill sample is extracted from the cylinder. , and also with a method of identifying the orientation of the cylinder drilling sample.

BACKGROUND OF THE INVENTION The following discussion of the background of the prior art is intended only to facilitate the understanding of the present invention. The discussion is not an acknowledgment or admission of all material referred to is or was part of the general knowledge common to the priority date of the request.

A drilling cylinder sample is needed in the geological drilling operations.

Drill samples are obtained through cylinder drilling operations. Cylinder drilling is usually carried out with a cylinder drilling system comprising external and internal tube assemblies. The internal tube assembly is known as the cylinder drill pipe. A cutting head is attached to the outer tube assembly so that the rotation torque applied to the outer tube assembly is transmitted to the cutting head. A cylinder is formed during the drilling operation, with the cylinder progressively extending through the cylinder bore as the bore advances. When a cylinder drilling sample is needed, the cylinder inside. of the cylinder drill pipe is fractured. The cylinder drill pipe and fractured cylinder drill sample contained therein are then removed from the drill hole below, generally by means of a recovery cable placed downstream in the drill hole. Once the cylinder drill pipe is driven to the soil surface, the cylinder drill sample can be removed and subjected to proper analysis.

Normally, the cylinder drilling operation is performed at an angle to the vertical, and it is advisable for analysis purposes to have an indication of the orientation of the cylinder drilling sample relative to the ground environment from which it is taken. It is therefore important that there be some means of identifying the orientation that the cylinder drill sample had within the soil environment before it was brought to the surface.

Drilling orientation devices are used of cylinder to provide an indication of the orientation of the cylinder drill sample. Many of these devices are mechanical in nature.

The international application of applicant PCT / AU2005 / 001344 (WO 2006/024111) discloses a cylinder drilling orientation device that electronically records the orientation information and processes it to provide an indication of the orientation of the extracted cylinder bore sample. related to the soil environment from which it was extracted. The device comprises a tool that is adapted to be coupled to the cylinder drill pipe. The tool incorporates means for determining and storing the orientation of the tool at predetermined intervals related to a reference time, means for entering a selected interval, means for relating the selected interval to one of the predetermined intervals and providing an indication of the orientation of the device in the selected range, means for comparing the orientation of the tool in the selected interval with the orientation of the tool at any subsequent time and giving an indication of the direction in which the tool should rotate to be driven to a corresponding orientation to the orientation of the tool at the selected moment. Thus, the sample of boring cylinder confined inside the tube Cylinder drilling is carried to an orientation corresponding to its original orientation in the soil environment. The cylinder drill sample can then be marked before being removed from inside the cylinder drill pipe.

All the necessary components for the operation of the device, including sensors, microprocessors, memory, circuitry and associated circuit boards, power supply, numeric keypad and visual indicator unit (LCD) are incorporated in the tool and are thus deployed in the well of 'piercing with the tool.

It would be advantageous to isolate some of the components from the drill hole so that they are not exposed to the damage caused by the arduous conditions to which the tool is normally exposed while it is down in the drill hole.

DESCRIPTION OF THE INVENTION According to a first aspect of the invention, there is a cylinder drilling orientation system comprising a first part adapted for working in conjunction with a cylinder drill pipe to record data related to the orientation of the cylinder drill pipe. , and a second part adapted for the joint work with the first part to receive and process orientation data obtained from the first part and deliver a indication of the orientation of a sample of cylinder bore within the cylinder bore tube at a time prior to the separation of the cylinder bore sample from the soil environment from which it was obtained, the first and second parts are adapted to the joint work so as to allow selective rotation between them.

With such an arrangement, the first part can be deployed under the floor with the cylinder drill pipe to record the data corresponding to the orientation of the cylinder drill pipe (and any cylinder drill sample contained therein). Once the cylinder drill pipe, together with the first part attached to it, is removed from the subsoil, the second part can be conducted for the joint work with the first part to receive and process the orientation data received from the first part. part. This arrangement has the advantage that it is not necessary for the second part to be driven under the ground and exposed to the harsh conditions of the latter.

Normally, the first part is adapted for joint work with a cylinder drill pipe which is adapted for connection to the cylinder drill pipe for the rotation movement in unison with it. The first part could be adapted for connection to the cylinder drill pipe, directly or indirectly. The first part could be connected directly to the drill pipe of cylinder, normally (but not necessarily) through a threaded connection between the two. The first part could be connected indirectly to the cylinder drill pipe by fitting into a cover that is connected to the cylinder drill pipe, normally (but not necessarily) through a threaded connection.

Preferably, there is a coupling for a coupling that allows the release of two parts together to offer the joint work that allows the selective rotation between both. Normally, the coupling is configured so that the second part can be coupled to the first part. The coupling could comprise a combination of magnetic and mechanical coupling.

In particular, the coupling is configured to allow selective rotation of the second part related to the first part if desired to establish a desired orientation between both parts.

The mechanical coupling could comprise a bobbin formation associated with one of both parts and a corresponding receptacle formation associated with the other part to give alignment between them when the bobbin formation is received within the receptacle formation.

The magnetic coupling could comprise an attractive force between both parts for the polarization of the bobbin and receptacle formation towards adjustment.

The bobbin formation could be offered in the second part and the corresponding receptacle formation could be associated with the first part. In one arrangement, the corresponding receptacle formation could be offered in the first part. In another arrangement, the corresponding receptacle formation could be offered in a member associated with the first part. The member could understand the cover on which the first part fits.

The cover could comprise at least two parts adapted for connection together and selectively separable to give access to the first parts adjusted here.

Preferably, the orientation data is transmitted from the first part to the second by wireless communication. This could include infrared short range (IR) communication. With this arrangement, the first and second parts are each provided with an IR interface to facilitate IR communication between them.

It should be noted that the orientation data could be transmitted from the first part to the second part in another suitable manner, including a physical transmission link established between the first and second parts when they are coupled.

The first part could comprise a downhole unit and the second a control unit.

According to the second aspect of the invention, there is a cylinder drilling orientation system comprising a first part to record orientation data and a second adapted for joint work with the first to receive and process orientation data from the first part, the parts are adapted for joint work so as to allow selective rotation between the two.

According to a third aspect of the invention there is a probing tool system comprising a cover and a cylinder drilling orientation system in which the cylinder drilling orientation system comprises a first part for recording data related to the orientation of a cylinder drilling sample, and a second part adapted for working together with the first part to receive and process orientation data from the first part and to provide an indication of the orientation of the cylinder drilling sample at a time before of the separation of the cylinder drilling sample from the soil environment from which it is obtained, the first part is contained within the cover, this comprises at least two parts adapted for connection together and selectively separable to allow the second part to have access to the first part for the joint work between both.

According to a fourth aspect of the invention there is a system of probing tool comprising a deck, a downhole unit to record data related to the orientation of a cylinder drill sample, and a control unit adapted for joint operation with the downhole unit to receive and process orientation data from the unit from bottom of well and give an indication of the orientation of the cylinder drilling sample at a time prior to the separation of the cylinder drilling sample from the soil environment from which it was obtained, the downhole unit is contained inside the cover, it comprises at least two parts adapted for connection together and selectively separable to allow the control unit to have access to the bottom of the well for joint work between them.

According to a fifth aspect of the invention there is a method that provides an indication of the orientation of a cylinder bore sample related to a body of material from which the drill sample of borehole drilling was removed, the method being applied by means of an orientation system according to the first or second aspect of the invention.

According to a sixth aspect of the invention there is a method of providing an indication of the orientation of a cylinder bore sample related to a body of material from which the cylinder bore sample was extracted, the method is applied using a system of polling tool according to the third or fourth aspect of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood by reference to the following description of several specific versions shown in the accompanying drawings, wherein: Figure 1 is a schematic view of a downhole unit forming part of a cylinder drilling sample orientation system according to the first version; Figure 2 is a schematic view of a control unit that is also part of the cylinder bore sample orientation system; Figure 3 is a fragmentary schematic view of the control unit in an operational setting with the downhole unit; Figure 4 is a schematic elevation view of a removable chassis that forms part of the control unit; Figure 5 is a side view of the chassis; Figure 6 is a schematic view of a calibration unit for calibrating the downhole unit; Figure 7 is a schematic view of a biasing station for the control unit; Figure 8 is a block diagram illustrating several components of the downhole unit; Figure 9 is a block diagram illustrating various components of the control unit; Figure 10 is a sectional perspective view of a cylinder drill sample orientation system according to the second version, with the downhole unit shown in part fitted with a cover for the latter, and the control unit shown coupled to the downhole unit; Figure 11 is a schematic view of an assembly in which the cover is adjusted and the control unit shown schematically in position in relation to the cover; Figure 12 is a schematic view of a part of the roof, with the other part being separated from it to give access to a downhole unit fitted in the first part, and a control unit shown for joint work with the downhole unit; Figure 13 is an end view of the control unit; Figure 14 is a side elevation view of the cover; Figure 15 is a side elevation view of the cover showing both parts thereof in a separate condition; Y; Figure 16 is a section elevation view of the cover.

PREFERRED MODALINE (S) OF THE INVENTION Referring to Figures 1 to 9, a cylinder drilling sample orientation system 10 is shown which according to the first version comprises a first part 11 and a second part 12. The first part 11 comprises a background unit of Well adapted for connection to a cylinder drill pipe (not shown) of a well-known cylinder drilling system. The second part 12 comprises a control unit as will be explained in more detail below.

The bottomhole unit 11 is configured for connection to the upper end of the cylinder bore tube; specifically, by means of a thread adjustment to it. When the connection to the cylinder drill pipe is made in this way, the bottomhole unit 11 is fixed by rotation with the cylinder drill pipe.

The bottomhole unit 11 comprises a cylindrical cover 15 having a first end 17, a second end 18, and a cylindrical side wall 19 extending between both ends.

The side wall 19 has an outer periphery 21 configured and sized to fit the outer periphery of the cylinder bore tube.

The first end 17 of the downhole unit incorporates a thread section (not shown) for thread adjustment with a thread contact section on the upper end of the thread bore tube.

The downhole unit 11 is configured to work in conjunction with the control unit 12 to establish an operational connection between the two, as will be explained in more detail below. More particularly, the well unit 11 and the control unit 12 are configured to provide a coupling 23 for connecting them together so as to allow release and so as to allow selective rotation between them. The coupling 23 comprises a combination of magnetic and mechanical coupling, as will be explained.

The coupling 23 comprises a receptacle formation 25 at the second end 18 of the downhole unit 11 and a corresponding bobbin formation 27 in the control unit 12 to provide alignment therebetween when the bobbin formation 27 is received inside. of the receptacle formation 25. The mechanical connection is established by means of adjustment between the formation of receptacle 25 and that of bobbin 27. The magnetic coupling provides an attractive force between the downhole unit 11 and the control unit 12 for polarization of the bobbin 27 and receptacle 25 formation towards adjustment.

The receptacle formation 25 has an internal face 31 with an external radial section 33 that incorporates a magnetic element 35. The formation of bobbin 27 has an external face 37 with an external radial section 41 incorporating another magnetic element 43. Both magnetic elements, 35 and 43, work together to establish the magnetic attraction force between both parts, 11 and 12, when the tap formation 27 is received within the receptacle formation 25.

The control unit 12 comprises a generally circular body 51 having an external face 53, an internal face 55 and a circular outer peripheral wall 57. The bobbin formation 27 is incorporated in the body 51 and projects axially from the face internal 55.

The body 51 is configured as a structure and size that can be easily grasped and manipulated manually, even when protective gloves are worn.

The body 51 has an internal region 61 that fits a removable chassis 63 that carries a circuit board 65 and related components. With this arrangement, the body 51 or the chassis 63 can be replaced as needed in case any component of them fails.

The body 51 also fits the power supply 67 in the form of a lithium battery pack, and a IR interface 68 which is disposed within the bobbin formation 27.

The external face 53 of the body 51 incorporates an input device 69 in the form of a numeric keypad and a visual indicator device 71 in the form of a liquid crystal indicator unit.

The chassis 63 carries a processing means 73 in the form of a low electric microcontroller, a memory device 75 that delivers a non-volatile memory, a timer 77 and monitoring circuit 79.

The cover 15 of the downhole unit 11 has an internal cavity 81 which fits a module 83 incorporating a triaxial accelerometer means 85, an analog to digital converter 87, a processing means 89 in the form of a low electric microcontroller, a memory device 91 that delivers non-volatile memory, a power supply 92 in the form of a lithium battery pack and a monitoring circuit 93. In addition, the module 83 is provided with an IR 95 interface. With this arrangement, the Downhole unit 11 can record data related to its orientation (and thus the orientation of the cylinder drill pipe to which it is attached). When the downhole unit Use withdraws from the bottom of the well (together with the cylinder drill pipe and the cylinder drill sample in it), and the control unit 12 is then coupled to the downhole unit 11 as previously described, the orientation data recorded by the downhole unit 11 is transmitted wirelessly to the control unit 12 through a joint working operation between the two IR interfaces, 68 and 95. The control unit 12 receives and processes orientation data from the downhole unit 11 and gives an indication of the orientation of a cylinder bore sample within the cylinder bore tube at a time prior to the separation of the cylinder drilling sample from the soil environment from which it was obtained.

The guidance system 10 operates in a manner similar to that described above in the international application PCT / AU2005 / 001344 (WO 2006/024111), its contents are included by way of reference. In particular, the triaxial medium accelerometer 85 comprises three internal silicone accelerometers operating through orthogonal directions X, Y and Z. The three accelerometers measure components of the gravitational field of the earth. Mathematically, the transformation of the outputs from the three accelerometers allows the rotational orientation of the downhole unit on its longitudinal axis to be determined. More particularly, the signals produced by the triaxial medium accelerometer 85 are determinants of the change in the orientation of the downhole unit and are transmitted to the converter analog to digital 87 which in turn transmits signals or signal data to the microcontroller 89. It processes signals from the array over predetermined intervals.

When the downhole unit 11 is operational, the relative orientation of the tool is determined at regular intervals by the processing means 89. The processed data is stored in the memory of the memory device 91. In this version, the intervals in which orientation is determined and stored comprise one-minute intervals, although other intervals are of course possible.

The observation circuit 93 is arranged to observe the system. In instances where the downhole unit 11 closes while it is downhole, it can be reset on the surface. In the same way, the control unit 12 has the observation circuit 79 for reset according to necessity.

There is a calibration unit 97 (as shown in Figure 6) to calibrate the downhole unit as required to maintain its accuracy. The calibration unit 97 is configured to incorporate a bore formation 98 for adjustment to the receptacle formation 25 of the bottomhole unit 11.

A docking station 99 (as shown in Figure 7) is provided for support of the control unit 12 when not in use and for charging the power supply 67 as needed. The coupling unit 99 incorporates a receptacle formation 101 for receiving the bobbin formation 27 in the control unit 12.

The following process occurs in the operation of the downhole unit 11 connected to the cylinder drill pipe. The first step comprises the activation of the downhole unit 11 and establishment of a reference time. The cylinder drilling system that has the cylinder drill pipe moves down the drill hole to a drilling site where it is drilled to drill a cylinder drill sample. While the cylinder drilling system is moving to the drilling location, and also while it is operating, the downhole unit 11 generates acceleration signals associated with the rotational orientation of the downhole unit 11 and the drilling pipe cylinder to which it is attached. The processing means 89 then processes the signals to deliver processed data from which a rotational orientation measurement of the downhole unit 11 can be established at the drilling location. The processed data is stored in the memory device 91 to be retrieved later so that the measurement of the rotational orientation of the pool bottom unit can be obtained from them.

During the drilling operation, a sample of cylinder bore is progressively generated inside the cylinder bore tube. When the cylinder drilling sample is to be removed, the operator of the cylinder drilling system refers to a timer and notes or records the time since the downhole unit was activated at the beginning of the operation. Specifically, the operator records the full minute that has previously elapsed or waits until the next full minute elapses, and then records that time (when it must be retrieved later). The operator then initiates the procedure of analyzing the sample of cylinder bore from the body of the material, making sure that no rotation of the cylinder bore tube occurred. This is removed from the drilling well in a conventional manner.

When the cylinder drilling tube and downhole unit 11 are on the surface, the control unit 12 is coupled to the downhole unit 11 in the manner previously explained. The coupling 23 allows the control unit 12 to rotate selectively with respect to the downhole unit 11 to establish the desired orientation relationship between the two. This, of course, requires the application of a rotational force between the downhole unit 11 and control unit 12 sufficient to cancel the magnetic attraction between the two, to allow it to occur. the relative rotation.

Guidance data collected by the downhole tool 11 is transmitted wirelessly to the control unit 12 through the IR interfaces for subsequent consultation of the guidance data. The previously recorded time reading is input to the control unit by means of a keyboard input device 69. The orientation data is processed in relation to the time input to determine the orientation of the downhole unit 11 ( and therefore the cylinder drill pipe and cylinder drill sample confined to the cylinder drill pipe) before the analysis of the cylinder drill sample from the body of the material. By using integration means and prescribed intervals the processed data are indicators of the change orientation of the downhole unit at the prescribed intervals starting from the reference time corresponding to the time in which the downhole unit is active.

The control unit 12 processes the orientation data and delivers a measurement of the target orientation of the downhole unit 11 in relation to the current rotational orientation thereof. This allows the downhole unit 11 to rotate accordingly to reflect the orientation measurement of the drilling orientation device. of cylinder.

The visual indicator device 71 shows a visual indication of the direction in which the downhole unit 11 and the cylinder bore tube attached thereto should rotate to achieve the target orientation. The rotation of the downhole unit 11 and the cylinder bore tube attached thereto in the indicated direction causes the cylinder bore sample contained in the cylinder bore tube to move to the target orientation (corresponding to the orientation of the cylinder drilling sample at the time the cylinder drill sample was in the soil environment before extraction).

Once the required target orientation is obtained, the cylinder drill sample inside the cylinder drill pipe can be marked as needed and then removed from the cylinder drill pipe.

In this version, the visual indication comprises a directional arrow arrangement that shows the required rotational direction. Once the downhole unit is in the target orientation, the indicator could provide an image that represents that condition. Other visual arrangements of course that are possible. In addition, the indication does not need to be a visual indication; for example, the indication could include a sensory indication appropriate that includes visual, auditory and tactile indications, as well as a combination of them. In addition, the nature of the indication may vary when the orientation of the rotating bottomhole unit approaches the target orientation. A visual indication could, for example, comprise an intermittent signal that grows in frequency when the target orientation is reached. Similarly, an auditory signal could comprise a series of discrete auditory tones that increase in frequency when the target orientation is reached, or alternatively a continuous auditory signal that varies in pitch when the target orientation is reached.

Referring now to Figures 10 to 16, a cylinder drill sample orientation system 110 according to the second version is shown. The cylinder drill sample orientation system 110 is similar in some aspects to the cylinder drill sample orientation system 10 according to the first version and thus the corresponding reference numbers will be used to identify the corresponding parts. These in the cylinder drilling sample orientation system 110 will not be described largely.

In particular, the cylinder drill sample orientation system 110 comprises the bottomhole unit 11 and control unit 12 that characterize the coupling 23. between both. This 23 comprises a combination of a magnetic and a mechanical connection.

The cylinder drilling sample orientation system 110 is designed for use in conjunction with a downhole assembly 111 comprising a cylinder drill pipe 113, a rear end portion 115 and a cover 117 installed between the drill pipe. cylinder bore 113 and back end part 115. This 115 is of standard cable line construction and is normally directly connected to cylinder bore 113; however, in this version, the cover 117 is configured for installation between the cylinder drill pipe 113 and the rear end portion 115.

The cover 117 could be of a construction as described in the Australian Provisional Application of Patents 2009900590 and corresponding international application filed in the Patent Cooperation treaty, the contents of both are included by way of reference.

In the arrangement shown, the cover 117 incorporates a compartment 119 configured for adjustment to the downhole unit 11. This 11 is confined in the compartment 119 to move at the same time with the cover 117, in the translation and rotation.

The cover 117 has a bottom end 121 adapted for connection to the upper end of the tube. cylinder bore 113, and an upstream end 123 adapted for connection to the rear end part 115.

In this way, the downhole unit 11 is also connected to the cylinder drill pipe 113 so as to record data related to the orientation of the cylinder drill pipe and any sample of cylinder bore contained therein.

The cover 117 comprises two parts, one of the lowermost body 125 and another of the uppermost receptacle 127. Both, 125 and 127, operate together to define the compartment 119 for adjustment to the downhole unit 11. The parts 125 and 127 are selectively separated to provide access to compartment 119. In the arrangement shown in Figure 15, both parts 125 and 127 are shown separately. Lower body part 125 has an end 131 configured as a bobbin 133, and that of the uppermost receptacle 127 has an adjacent end configured as a receptacle 137 in which the bobbin 133 can be received in the form of a thread to secure both parts together. A sealing means 139 is provided for the sealing fit of the impervious fluid effect between both parts, 125 and 127. In the illustrated arrangement, the sealing means 139 comprises sealing elements in the form of a ring 0 in the bobbin 133.

The cover 117 is configured to allow fluid to flow past the downhole assembly 111 when it descends into a drill hole (or more particularly within the drill rods therein). Preferably, the arrangement is such that the fluid can flow past the downhole bottom assembly 111 at a rate sufficient to allow the assembly to descend rapidly.

The end 131 of the lower part of the body 125 configured as a bobbin 133 is also configured as a receptacle formation 141 which performs a function similar to that of the receptacle formation 25 of the cylinder bore sample orientation system. 10 according to the first version. Specifically, the receptacle formation 141 is adapted to receive the bobbin formation 27 in the control unit 12. The formation of bobbin 27 and receptacle 141 operate together to provide the mechanical connection established by the coupling 23.

The end 143 of the downhole unit 11 adjacent to the receptacle formation 141 has an inner face 145 incorporating a magnetic element 149. This 149 operates in conjunction with the magnetic element 43 in the bobbin formation 27 in the housing unit. control 12 to establish the magnetic attraction force - between both parts, 11 and 12, when the formation of the tap 27 is received inside a receptacle formation 141. This arrangement delivers the magnetic connection established by the coupling 23.

In Figure 10, the control unit 12 is shown coupled to the bottomhole unit 11 while the lower body part 125 is within a drill string. This is merely for illustrative purposes, only to show that the cover 117 and total assembly 111 can be received within a drill string. Typically, the assembly 111 is removed from the drill string before both parts, 125 and 127, are separated and the control unit 12 is connected to the downhole unit 11.

The operation of the downhole assembly 111 will not be described. The cover 117 is installed between the cylinder drill pipe 113 and the rear end portion 115, as previously described, to provide the assembly 111.

Both parts, 125 and 127, of the cover 117 are spaced apart to allow installation of the downhole unit 11 in the compartment 119 and then coupled together to cover the downhole unit 11 within the compartment 119.

The assembly 111 is then placed further below the drill rods into the drill hole in a conventional manner. When the assembly 111 descends, the fluid inside the drill rods flows upwards (in relation to the descending assembly 111). The fluid within the drill rods is able to flow past the cover 117 as it descends into the drill rods and thus the presence of the cover does not prevent the fluid from flowing to an extent to relatively inhibit the rapid descent of the assembly 111.

At the end of the cylinder drilling operation, the cylinder drill sample is removed in the known manner. Once the assembly 111 is at ground level, both parts, 125 and 127, of the cover 117 can be separated to provide access to the downhole unit 11 within the lower part of the body 125. The unit Control 12 can then be conducted for the joint operation with the downhole unit 11, as shown in Figure 10, to receive and process the orientation data obtained from the downhole unit 11. Specifically, the training of receptacle 141 in the lower part of the body 125 receives the formation of bobbin 27 in the control unit 12. The formation of bobbin 27 and receptacle 141 operate together to provide the mechanical connection established by the coupling 23. In addition, the magnetic element 149 at the end 143 of the downhole unit 11 within the lower part of the body 125 operate in conjunction with the magnetic element 43 in the bobbin formation 27 in the control unit 12 for or Frecer the connection magnetic field established by the coupling 23.

The coupling 23 allows the control unit 12 to rotate selectively with respect to the downhole unit 11 to establish the desired orientation relationship between the two, as was the case with the first version.

Once the orientation of the cylinder drill sample within the cylinder drill pipe 113 has been established and recorded, the cylinder drill sample can be removed from the cylinder drill pipe. Both parts, 125 and 127, of the cover 117 can then be driven together again to coat the downhole unit 11 inside the cover so that it can be performed when the next cylinder drill sampling operation is required.

From the foregoing, it is evident that each of the following versions delivers a modular cylinder drilling sample orientation system comprising the downhole unit 11 and the control unit 12 as separate parts. Because the control unit 12 is separated from the downhole unit 11 and is not deployed in the drill hole during the cylinder drilling sampling operation, it is isolated from the rigidity to which the downhole unit 11 is exposed during deployment. Similarly, the control unit is isolated from the rigor to which the orientation tools of Unitary cylinder bore (such as the tool exposed in the aforementioned international application PCT / AÜ2005 / 001344) are exposed in drilling wells.

Modifications and improvements can be made without departing from the scope of the invention. For example, in another version, physical orientation does not need to understand a rotational orientation but rather a measure of degrees above or below the horizontal plane.

In all specifications and statements, unless the context requires otherwise, the word "understand" or variations such as "comprises" or "comprising" shall be understood to imply the inclusion of an integer or group of integers indicated but not the exclusion of any other integer or group of integers.

Claims

1. A cylinder drilling orientation system, CHARACTERIZED in that it comprises a first part adapted for joint operation with a cylinder drill pipe to record data related to the orientation of the cylinder drill pipe, and a second part adapted for joint operation with the first part for receiving and processing orientation data from the first part and giving an indication of the orientation of a cylinder drilling sample inside the cylinder drilling tube at a time prior to the separation of the cylinder drilling sample of the soil environment from which it was obtained, the first and second parts are adapted for the joint operation in order to allow the selective rotation between both.

2. The cylinder drilling orientation system according to claim 1, CHARACTERIZED because the first part is adapted for joint operation with a cylinder bore tube when adapted for connection to the cylinder bore tube for simultaneous rotary movement with this.

3. The cylinder drilling orientation system according to claim 2, CHARACTERIZED because the first part is adapted for direct connection with the cylinder drill pipe.

4. The cylinder drilling orientation system according to claim 3, CHARACTERIZED in that the first part is adapted to fit within a cover adapted for connection to the cylinder drill pipe.

5. The cylinder drilling orientation system according to any of the preceding claims, CHARACTERIZED in that it further comprises a coupling for coupling both parts in the form of release.

6. The cylinder drilling orientation system according to claim 5, CHARACTERIZED in that the coupling is configured so that the second part can be coupled to the first.

7. The cylinder drilling orientation system according to claim 5 or 6, CHARACTERIZED in that the coupling is configured to allow a selective rotation of the second part in relation to the first part.

8. The cylinder drilling orientation system according to claim 5, 6 or 7, CHARACTERIZED because the coupling comprises a mechanical coupling.

9. The cylinder drilling orientation system according to any of claims 5 to 8, CHARACTERIZED in that the coupling comprises a coupling magnetic.

10. The cylinder drilling orientation system according to one of claims 5 to 8, CHARACTERIZED in that the coupling comprises a combination of magnetic and mechanical coupling.

11. The cylinder drilling orientation system according to claim 8, 9 or 10, CHARACTERIZED in that the mechanical coupling comprises a bobbin formation associated with one of both parts and a corresponding receptacle formation associated with the other part to provide alignment between both parts when the bobbin formation is received within the receptacle formation.

12. The cylinder drilling orientation system according to claim 11, CHARACTERIZED in that the magnetic coupling comprises an attraction force between both parts for polarization of the bobbin and receptacle formation towards adjustment.

13. The cylinder drilling orientation system according to claim 11 or 12, CHARACTERIZED because the bobbin formation is provided in the second part and the corresponding receptacle formation could be associated with the first part.

14. The cylinder drilling orientation system according to claim 13, CHARACTERIZED because the corresponding receptacle formation is provided in the first part.

15. The cylinder drilling orientation system according to claim 13, CHARACTERIZED because the corresponding receptacle formation is provided in a member associated with the first part.

16. The cylinder drilling orientation system according to claim 15, CHARACTERIZED in that the member comprises a cover that fits the first part.

17. The cylinder drilling orientation system according to claim 16, CHARACTERIZED in that the cover has at least two parts adapted for connection together and selectively separable to give access to the first part fitted therein.

18. The cylinder drilling orientation system according to any of the preceding claims, CHARACTERIZED because the orientation data is transmitted from the first part to the second by means of wireless communication.

19. The cylinder drilling orientation system according to any of the preceding claims, CHARACTERIZED in that the first part comprises a downhole unit and the second part comprises a control unit.

20. A cylinder drilling orientation system, CHARACTERIZED because it comprises a first part for recording orientation data and a second part adapted for operation with the first part for receiving and processing orientation data from the first part, the first and second parts are adapted for joint operation so as to allow selective rotation between the two.

21. A drilling tool system, CHARACTERIZED in that it comprises a cover and a cylinder drilling orientation system in which the cylinder drilling orientation system comprises a first part for recording data related to the orientation of a cylinder drilling sample, and a second part adapted for the joint operation with the first part to receive and process orientation data from the first part and provide an indication of the orientation of the cylinder perforation sample at a time prior to the separation of the sample from. drilling of cylinder from the soil environment from which it was obtained, the first part is contained within the cover, this comprises at least two parts adapted for connection together and selectively separable to allow the second part to have access to the first for the joint operation between both.

22. A polling tool system, CHARACTERIZED because it comprises a cover, a unit of Well bottom to record data related to the orientation of a cylinder drill sample, and a control unit adapted for joint operation with the downhole unit to receive and process orientation data from the downhole unit and give an indication of the orientation of the cylinder drill sample at a time prior to the separation of the cylinder drill sample from the soil environment from which it was obtained, the bottomhole unit is contained within the cover, it comprises at least two parts adapted for connection together and selectively separable to allow access of the control unit to the downhole for joint operation between the two.

23. A method for providing an indication of the orientation of a cylinder bore sample related to a body of the material from which the cylinder bore sample was removed, CHARACTERIZED because the method is applied using an orientation system in accordance with a of claims 1 to 20.

24. A method that provides an indication of the orientation of a cylinder bore sample related to a body of material from which the sample was extracted, characterized in that the method is applied using a bore tool system according to claim 21 or 22.

25. A cylinder drilling orientation system, CHARACTERIZED because it is described to a great extent with reference to the accompanying drawings.

26. A probe tool system, CHARACTERIZED because it is described in great part with reference to the accompanying drawings.