EP0710319B1 - Procede et dispositif de detection et/ou de mesure d'au moins un parametre geophysique sur une carotte - Google Patents
Procede et dispositif de detection et/ou de mesure d'au moins un parametre geophysique sur une carotte Download PDFInfo
- Publication number
- EP0710319B1 EP0710319B1 EP95918479A EP95918479A EP0710319B1 EP 0710319 B1 EP0710319 B1 EP 0710319B1 EP 95918479 A EP95918479 A EP 95918479A EP 95918479 A EP95918479 A EP 95918479A EP 0710319 B1 EP0710319 B1 EP 0710319B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- core sample
- sampler
- inner tube
- designed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 claims description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims 3
- 235000009518 sodium iodide Nutrition 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract 1
- 244000000626 Daucus carota Species 0.000 description 35
- 235000002767 Daucus carota Nutrition 0.000 description 35
- 208000031968 Cadaver Diseases 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000287107 Passer Species 0.000 description 1
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
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
- 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
Definitions
- the present invention relates to a method of detection and / or measurement of at least one geophysical parameter on a carrot, especially in the field tanker.
- Parameters of the above type are likely to be influenced by the environment of the carrot at the time of measurement or again, parameters alike from the environment are likely to add to the corresponding parameters of the carrot during the measurement made on it. So, when the carrot is arranged horizontally, one of its sides being closer to the ground than the other, this distance difference can change the result of the measure, or the soil can influence the instruments because of the proximity, especially since this proximity is asymmetrical with respect to the whole carrot mass. Ultimately, a lack of accessibility carrot does not optimize the measured.
- the object of the present invention is to remedy to these problems by allowing detections to be made and / or measurements of geodetic parameters on a core who has undergone the least amount of manipulation possible, example because it has not yet been cut into sections, and which is located so as to suffer from the share of the environment as little influence as possible or the less asymmetrically possible, because it is by example still maintained, until the moment of detection and / or measurement, in a vertical position (therefore under a symmetrical influence of the ground) and sheltered in the tube external core barrel which is metallic and which forms this makes a screen to certain influences of the surrounding soil.
- the present invention also relates to a device for detecting and / or measuring at least one geophysical parameter on a carrot, in particular in the petroleum field.
- Figure 1 shows an elevation view and with partial breaks of a device of the invention, for the implementation of the method of the invention, the device being installed on a core barrel and being in during use.
- FIG. 2 is a view with cross section, according to line II-II of Figure 1 and according to associated arrows, showing the attachment of the device supra at the corer.
- FIG. 3 is a view with cross section, according to line III-III of Figure 1 and according to associated arrows, showing device guidance aforementioned compared to an internal core barrel passed in the device.
- the process according to the invention is intended the detection and / or measurement of at least one parameter geophysics on a core 1 (Figure 1), for example in an oil core.
- a geophysical parameter of this kind can be a natural radioactivity of constituents of the carrot, absorption of radiation emitted by a known radiation source, etc.
- the method comprises, during a coring operation with a corer 2, an arrangement, substantially fixed relative to the corer 2, a sensor 3 for detecting and / or measuring the parameter concerned, directly downstream, in 4, of the outlet hole 5 of the core barrel 2 relative to the direction removing core 1 in the immediate vicinity (known of the person skilled in the art) of the course of withdrawal of the carrot 1.
- the sensor 3 can be a crystal of NaI which detects the part of radiation, from a source known from cesium 137 of 1 millicurie and located in 6, which is not absorbed by the constituents of carrot 1, to determine the part of radiation absorbed by these latter.
- Detection and / or measurement of the value of parameter is therefore carried out by this sensor 3 in one or several places of carrot 1 while it is removed from the core barrel 2 by known means and / or is returned to it by them.
- This procedure may aim for example to do several times the same detection and / or measurement in several places along the length of carrot 1 which has just been completed and is still in its infancy first manipulations unlike the previous process, so without being cut and passed from a position practically vertical up to for example a position horizontal before detection and / or measurement takes place above.
- a first processing of the values coming from detection and / or measurement can then also take place directly at the location of the coring, for example in order to sort these values to put them in memory or to use them immediately as explained below.
- the method according to the invention additionally, simultaneously with the detection and / or measure mentioned in 3, a statement of the position of the location corresponding to this detection and / or measurement on core 1 and, after this reading, processing of this for its storage and / or use immediate, for example to determine sections of carrot 1 which present detection results and / or specific measures.
- a selection of one step substantially constant between two detection locations can be done in such a way as to facilitate this mapping between each detection location and / or measurement and this detection and / or measurement or to be able to more easily observe an evolution thereof.
- a selection of speed substantially constant of displacement during removal of the carrot 1 from the corer 2 or its return therein can favor detections and / or measurements which are influenced by this speed of movement. Until present this results from a manual action during a displacement of the aforementioned carriage and it is therefore essentially irregular.
- this device 7 comprises a hollow body 10 having two openings 11 and 12 located opposite each other along an axis longitudinal 13 of the hollow body 10. Free passage 14 extends between openings 11 and 12 and is arranged by compared to these so that a carrot 1, enclosed in an internal tube 15 of the core barrel 2, can pass freely through the hollow body 10.
- the device 7 further comprises fixing means 16 for fixing removably the hollow body 10 to an external tube 17 of the core barrel 2, at the end 22 thereof through which a carrot 1 enclosed in the inner tube 15 came out of the core barrel 2.
- the hollow body 10 is then there fixed so as to be located, at least for the most part, in the extension of the outer tube 17, the axes longitudinal 13, hollow body 10, and 18 of the core barrel 2 being substantially coaxial.
- the hollow body 10 comprises at least one sensor 3 for detection and / or measurement a geophysical parameter to be evaluated on core 1 to remove from the core barrel 2.
- the sensor 3, an example of which is given above is fixed to the hollow body 10 to be arranged in front of the core 1 when it is in the free passage 14.
- the aforementioned fastening means 16 can preferably constitute a detachable unit from the body hollow 10 and include (figure 3) two flange parts 20 and 21 adapted to the external diameter of the external tube 17 in order to be able to grip this tube 17 with force near its end 22 of the outlet of the core 1.
- Connection means 23 and clamping means 24 are arranged between the two flange parts 20 and 21.
- the means of link 23 are formed for example by a cross link 23 which links together, in an articulated manner, one end of a flange portion 20 at one end corresponding to the other flange part 21, so that these flange parts 20, 21 can be moved freely, for the embracing and for the liberation of the end 22, in a plane substantially perpendicular to the longitudinal axis 18.
- the two flange parts 20 and 21 can then be arranged to occupy one relative to the other two distinct positions, one first in which they enclose ( Figures 1 and 3) securely the outer tube 17 when the device 7 is mounted on the latter, and a second position (not shown) in which the flange parts 20 and 21 are spaced apart from each other by a greater distance to the outer diameter of the outer tube 17, so that being able to mount the fastening means 16 and therefore the device 7 on the outer tube 17 or remove them therefrom.
- the flange parts 20 and 21 and the cross member 23 have each an internal boss 25 including a peripheral surface internal is adapted to said external diameter of the tube external 17, the three internal bosses 25 being regularly distributed around the outer tube 17.
- the means of tightening 24 above are for example a screw 26 passing in a smooth hole 27 made in the free end of the flange part 21, and in a threaded hole 28 formed in the free end of the flange part 20.
- the screw 26, the smooth 27 and threaded 28 holes have, in the assembled state, connecting means 23 and clamp 24 on the outer tube 17, a common axis which is parallel to the above-mentioned plane, perpendicular to the axis longitudinal 18, and which extends on the opposite side of the tube external 17 relative to the cross member 23, preferably parallel to the latter.
- connection means 30 which may include projecting elements 31 and recesses 32 arranged on the hollow body 10 and for example on the flange parts 20 and 21 as shown in the figure 3.
- a projection 31 is each time a overhanging spindle 31 fixed to the flange part 20 or 21 so that the two pins 31 are coaxial along a diameter of the outer tube 17, when the means fastening 16 enclose it in the assembled state of the device 7, and so that the free end of each pin 31 is turned towards the longitudinal axis 18.
- pins 31 are passed through recesses or openings 32 made in corresponding ears 33, of the hollow body 10, fixed thereto at its end to be placed on the outer tube 17.
- the connection 23 and clamping means 24 is formed by the shape of the hollow body 10 and the connection 23 and clamping means 24.
- each pin 31 and the corresponding opening 32 Preferably, play is provided between each pin 31 and the corresponding opening 32, for reasons explained below.
- connection by the aforementioned form can be released, in the case of the example above, by unscrewing the screws 26 so that one of the the other the flange parts 20 and 21, to loosen their grip on the outer tube 17, until the pins 31 can be removed from the openings 32.
- the hollow body 10 to be able to possibly mount or dismount the corer 2 the hollow body 10, this last present overall, in cross section at its axis 13, a U-shape.
- a longitudinal side 35 ( Figures 1 and 2) of the hollow body 10 is indeed open over its entire dimension taken parallel to the axis longitudinal 13 and on its transverse dimension at less equal to the outer diameter of the core 1 or preferably, from the inner tube 15.
- the device 7 can be brought to or removed from the core barrel 2 by a transverse displacement to the axis 13 or 18 so the core 1 or the inner tube 15 can partially out of the core barrel 2 thus easily reach the free passage 14 from outside the hollow body 10 or vice versa, when mounting the latter on the corer 2 or disassembly respectively.
- the device 7 further comprises guide means 36 of the hollow body 10 relative to the inner tube 15.
- These guide means 36 comprising rollers 37 of which the axis of rotation is each time in a perpendicular plane to the longitudinal axis 13, are arranged so to be supported on the external surface of the internal tube 15. aforementioned when it is placed in the body hollow 10, in measurement and / or detection position.
- the axes of rotation of two rollers 37A can be fixed relative to the hollow body 10 and can be located in the same plane perpendicular to the longitudinal axis 13, preferably opposite the longitudinal side open 35, relative to the longitudinal axis 13.
- two other rollers 37B can be provided on a support 38 mounted on the hollow body 10 through, on the one hand, a hinge 39 and, on the other hand, a screw 40 and a compression spring 41, so that it can be closed or open by this support 38 and the rollers 37B the side longitudinal 35.
- the axes of rotation of the two rollers 37B are in planes perpendicular to the longitudinal axis 13 and located on either side of the perpendicular plane common axes of rollers 37A.
- the projections on this latter plane rollers 37A and 37B are distributed over 360 ° around the projection of the tube internal 15 on this same plane.
- rollers of guide 37 are located at the end of the hollow body 10 away from the core barrel 2 in the assembled state of the device 7 on the core barrel 2.
- sensor 3 formed by a NaI crystal is connected to a photomultiplier 50 for detecting rays gamma emitted by carrot 1 or for the measurement of these rays absorbed by this carrot 1.
- sensor 3 can be connected by photomultiplier 50 to 51 signal processing unit of sensor 3 and this processing unit 51 can be connected to a transmission transmitter 52, for example wireless VHF, which is arranged to transmit on a distance of 50 to 100 m the signals processed and which is incorporated in the device 7.
- the transmitter 52 via its 52A antenna is then tuned to a receiver wireless transmission (not shown) arranged for receive processed signals and transmit them to a user.
- the transmitter 52 and the aforementioned receiver are each a transceiver combined and are arranged to be able to further control from the receiver (not shown), via of the transmitter 52, the processing unit 51.
- a radioactive source 6 can be arranged in the hollow body 10 to radiate towards the carrot 1.
- the aforementioned sensor can then be arranged to perform a measure of the absorption of radiation from the source 6 by the core 1.
- Another sensor 53 can be mounted in the hollow body 10 for measuring radiation natural from carrot 1.
- This sensor 53 is then also connected to the processing unit 51 which, in this case, is arranged to also process signals from this other sensor 53 and to transmit them as above for use away from the platform drilling where coring and use takes place of the device 7.
- the device 7 preferably includes its own 55 batteries for power supply electronic measuring, detection, processing, transmission, etc. above.
- the tube internal 17 of the core barrel 2 can for example be blocked, in the rotation table 60 (figure 1) of the platform drilling, by wedge wedges 61.
- the end upper 62 of inner tube 15 can be gripped by known means 63, for the purpose of removing this tube internal 15 and the core 1 of the drilled well.
- These means of seizure 63 are for example suspended from a cable of a winch (not shown).
- the hollow body 10 can be brought transversely to axis 18, when support 38 is pivoted to release the open longitudinal side 35, and the body hollow 10 is placed on the upper end 22 of the tube external 17 to be fixed there by the fixing means 16.
- a damping washer 64 (figure 1) can be disposed between the hollow body 10 and the upper end 22 cited above. After making this fixation by inserting pins 31 into holes 32 corresponding and by tightening the screw 26, the support 38 is positioned to close the longitudinal side 35 and the screw 40 is tightened to press, via of the spring 41, the rollers 37B in contact with the surface outer of inner tube 15 which also comes into contact with rollers 37A.
- the detection and / or measurement, processing devices signals and transmission can be engaged for perform measurements and / or parameter detection, their processing, possibly their storage in a memory incorporated in the device 7 and / or their remote transmission.
- the above winch is put on to remove the inner tube 15 and the carrot 1 it carries. Measurements and / or detections are performed. If necessary, the inner tube 15 and carrot 1 are lowered into the outer tube 17 to be pulled out again so you can repeat the measurements and / or detections either at the descent or at the descent and the ascent, and this can be repeated as often as desired, at a desired speed, constant preference.
- the device 7 can be removed by reversing the order of the operations mentioned above and the carrot 1 can then be processed in the usual way, for other useful analyzes in the case of drilling genre described above.
- a coding wheel system for displacement and / or distance traveled by the tube internal 15 can be used to correlate a measurement location and the corresponding measurement, this system can be connected to the winch or be directly in contact with the inner tube 15.
- a screen can be provided to close the side longitudinal 35 and to avoid thereby an influence unbalanced device 7 and / or the environment on core 1 intended for detection and / or 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)
- Geophysics And Detection Of Objects (AREA)
- Sampling And Sample Adjustment (AREA)
Description
- un agencement, sensiblement fixe par rapport au carottier, d'un capteur de détection et/ou mesure dudit paramètre, directement en aval de l'orifice de sortie du carottier, par rapport au sens de retrait de la carotte, au voisinage du parcours de retrait de la carotte,
- une détection et/ou mesure de valeurs du paramètre en au moins un endroit de la carotte pendant que celle-ci est retirée du et/ou renvoyée dans le carottier, et
- un traitement de valeurs détectées et/ou mesurées du paramètre, pour leur mise en mémoire et/ou utilisation immédiate.
- un corps creux présentant deux ouvertures, situées à l'opposé l'une de l'autre suivant un axe longitudinal du corps creux, et un passage libre s'étendant entre les deux ouvertures, ces dernières et le passage libre étant agencés pour qu'une carotte, enfermée dans un tube interne de carottier, puisse passer librement d'une ouverture à l'autre à travers le corps creux,
- des moyens de fixation pour fixer de façon démontable, éventuellement avec un jeu déterminé, le corps creux à un tube externe du carottier, à l'extrémité de celui-ci par laquelle une carotte enfermée dans un tube interne est sortie, de façon que le corps creux soit situé, au moins en majeure partie, dans le prolongement du tube externe, les axes longitudinaux du corps creux et du carottier étant sensiblement coaxiaux, et
- au moins un capteur de détection et/ou mesure d'un paramètre géophysique à évaluer sur une carotte à retirer du carottier, ce capteur de détection et/ou mesure étant fixé au corps creux de façon qu'il soit agencé en face de la carotte, enfermée dans ledit tube interne, lorsque celle-ci est dans le passage libre précité.
Claims (12)
- Procédé de détection et/ou mesure d'au moins un paramètre géophysique sur une carotte (1), en particulier dans le domaine pétrolier comprenant, lors d'une opération de carottage avec un carottier (2) :un agencement, sensiblement fixe par rapport au carottier (2), d'un capteur (3) de détection et/ou mesure dudit paramètre, directement en aval de l'orifice de sortie (5) du carottier (2), par rapport au sens de retrait de la carotte (1), au voisinage du parcours de retrait de la carotte (1),une détection et/ou mesure de valeurs du paramètre en au moins un endroit de la carotte (1) pendant que celle-ci est retirée du et/ou renvoyée dans le carottier (2), etun traitement de valeurs détectées et/ou mesurées du paramètre, pour leur mise en mémoire et/ou utilisation immédiate.
- Procédé suivant la revendication 1, caractérisé en ce qu'il comprend en outre, simultanément à la détection et/ou mesure du paramètre, un relevé de la position de l'endroit correspondant de cette détection et/ou mesure sur la carotte (1) et un traitement de ce relevé pour sa mise en mémoire et/ou utilisation immédiate.
- Procédé suivant l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'il comprend une sélection d'un pas constant des endroits de détection et/ou mesure successifs et/ou d'une vitesse sensiblement constante du déplacement de la carotte (1) retirée du ou renvoyée dans le carottier (2) pendant la détection et/ou mesure.
- Procédé suivant l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comporte en outre une transmission à distance des valeurs détectées et/ou mesurées, éventuellement également du relevé de la position des endroits susdits.
- Dispositif de détection et/ou mesure d'au moins un paramètre géophysique sur une carotte (1), en particulier dans le domaine pétrolier, comportant:un corps creux (10) présentant deux ouvertures (11, 12), situées à l'opposé l'une de l'autre suivant un axe longitudinal (13) du corps creux (10), et un passage libre (14) s'étendant entre les deux ouvertures (11, 12), ces dernières et le passage libre (14) étant agencés pour qu'une carotte (1), enfermée dans un tube interne (15) de carottier (2), puisse passer librement d'une ouverture à (11, 12) l'autre à travers le corps creux (10),des moyens de fixation (16) pour fixer de façon démontable, éventuellement avec un jeu déterminé, le corps creux (10) à un tube externe (17) du carottier (2), à l'extrémité (22) de celui-ci par laquelle une carotte (1) enfermée dans un tube interne (15) est sortie, de façon que le corps creux (10) soit situé, au moins en majeure partie, dans le prolongement du tube externe (17), les axes longitudinaux (13 et respectivement 18) du corps creux (10) et du carottier (2) étant sensiblement coaxiaux, etau moins un capteur (3, 53) de détection et/ou mesure d'un paramètre géophysique à évaluer sur une carotte (1) à retirer du carottier (2), ce capteur (3, 53) de détection et/ou mesure étant fixé au corps creux (10) de façon qu'il soit agencé en face de la carotte (1), enfermée dans ledit tube interne (15), lorsque celle-ci est dans le passage libre (14) précité.
- Dispositif suivant la revendication 5, caractérisé en ce que les moyens de fixation (16) forment un ensemble constitutif détachable du corps creux (10) et comprennent :au moins deux parties de bride (20, 21) adaptées au diamètre externe dudit tube externe (17) pour pouvoir enserrer solidement celui-ci au voisinage de son extrémité (22) de sortie de carotte (1),des moyens de liaison (23) et de serrage (24) agencés entre les deux parties de bride (20, 21) pour que celles-ci puissent occuper l'une par rapport à l'autre deux positions distinctes, une première position dans laquelle elles enserrent solidement ledit tube externe (17) à l'état monté du dispositif (7) sur ce dernier, et une seconde position dans laquelle elles sont écartées l'une de l'autre pour un montage ou un démontage du dispositif (7) sur le tube externe (17), etdes moyens (30) de raccordement détachable pour raccorder, éventuellement avec le jeu déterminé, les moyens de liaison (23) et de serrage (24) et le corps creux (10), ces moyens de raccordement (30) comprenant de préférence des éléments en saillie (31) et des évidements (32) agencés sur le corps creux (10) et sur les parties de bride (20, 21) pour former une liaison par la forme qui, d'une part, fixe, éventuellement avec le jeu déterminé, le corps creux (10) sur le tube externe (17) lorsque les parties de bride (20, 21) enserrent solidement ce dernier à l'état monté du corps creux (10) sur le tube externe (17) et qui, d'autre part, est libérée lorsque les parties de bride (20, 21) sont dans leur seconde position, écartées l'une de l'autre pour le montage ou le démontage du corps creux (10) sur le carottier (2).
- Dispositif suivant l'un ou l'autre des revendications 5 et 6, caractérisé en ce que le corps creux (10) présente dans l'ensemble une forme de U en coupe transversale, un côté longitudinal (35) du corps creux (10) étant ouvert sur toute sa dimension parallèle à l'axe (13), sur une dimension transversale à cet axe (13) au moins égale au diamètre externe de la carotte (1) ou du tube interne (15) précité, de façon à permettre de faire passer la carotte (1) ou respectivement le tube interne (15) transversalement à l'axe longitudinal (13) depuis la passage libre (14) précité, à travers le côté longitudinal ouvert (35), jusqu'à l'extérieur du corps creux (10).
- Dispositif suivant l'une quelconque des revendications 5 à 7, caractérisé en ce qu'il comporte en outre des moyens de guidage (36) du corps creux (10) par rapport au tube interne (15), fixés au corps creux (10) et agencés de façon à prendre appui sur la surface externe du tube interne (15) susdit disposé dans le corps creux (10), l'appui ayant lieu en au moins trois points de contact qui, vus en projection sur un plan perpendiculaire aux axes longitudinaux (13, 18) sensiblement coaxiaux susdits, sont répartis sur 360° autour du tube interne (15), de préférence ces points d'appui étant sensiblement dans un même plan et/ou de part et d'autre de ce plan.
- Dispositif suivant la revendication 7, caractérisé en ce qu'il comporte en outre des moyens de guidage (36) du corps creux (10) par rapport au tube interne (15), agencés pour prendre appui sur la surface externe de ce dernier disposé dans le passage libre (14) du corps creux (10), et en ce que :un moyen de guidage comprend au moins un galet (37B) qui peut tourner autour d'un axe de rotation transversal à l'axe longitudinal (13) et qui est monté de façon amovible sur le corps creux (10), du côté longitudinal ouvert (35) de celui-ci, pour prendre appui sur le tube interne (15) de ce même côté (35) du corps creux (10) par rapport à l'axe longitudinal (13), etau moins deux autres moyens de guidage comprenant chacun au moins un galet (37A) qui peut tourner autour d'un axe de rotation transversal à l'axe longitudinal (13) et qui est monté de façon fixe sur le corps creux (10),les axes de rotation des trois galets (37) étant agencés autour du passage libre (14) pour que les points d'appui des trois galets (37) projetés sur un plan perpendiculaire à l'axe longitudinal (13) soient sensiblement régulièrement répartis autour de ce dernier,de préférence les galets (37) précités sont agencés à l'extrémité du corps creux (10) située à l'écart du carottier (2) lorsque le dispositif est monté sur ce dernier.
- Dispositif suivant l'une quelconque des revendications 5 à 9, caractérisé en ce que comme capteur (3) il comporte un cristal, de préférence d'iodure de sodium, raccordé à un photomultiplicateur (50) pour détecter des rayons gamma dans une carotte (1).
- Dispositif suivant l'une quelconque des revendications 5 à 10, caractérisé en ce que le capteur (3, 53) est raccordé à une unité de traitement (51) des signaux détectés et/ou mesurés par le capteur (3) et en ce que l'unité de traitement (51) est raccordée à un émetteur (52) de transmission sans fil qui est agencé pour transmettre à distance lesdits signaux traités, qui est monté dans ledit dispositif (7) de détection et/ou de mesure et qui est accordé sur un récepteur de transmission sans fil agencé pour recevoir lesdits signaux émis et les transmettre à un utilisateur, de préférence l'émetteur (52) et le récepteùr étant chacun un émetteur-récepteur combiné et étant agencés pour pouvoir commander depuis ledit récepteur, par l'intermédiaire dudit émetteur (52), l'unité de traitement (51) montée dans ledit dispositif (7).
- Dispositif suivant l'une quelconque des revendications 5 à 11, caractérisé en ce qu'il comporte en outre un source radioactive (6), agencée pour rayonner vers une carotte (1), et un capteur (53), sous forme d'un cristal, agencé pour mesurer l'absorption de la radiation de la source radioactive (6) par la carotte (1), le cas échéant ledit capteur (53) étant raccordé à l'unité de traitement (51) agencée pour traiter ses signaux et pour les transmettre à l'émetteur (52) agencé pour les transmettre audit récepteur agencé pour leur réception et leur transmission à un utilisateur.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9400537 | 1994-05-30 | ||
BE9400537A BE1008302A3 (fr) | 1994-05-30 | 1994-05-30 | Procede et dispositif de detection ou et/ou de mesure d'au moins un parametre geophysique sur une carotte. |
PCT/BE1995/000048 WO1995033123A1 (fr) | 1994-05-30 | 1995-05-16 | Procede et dispositif de detection et/ou de mesure d'au moins un parametre geophysique sur une carotte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0710319A1 EP0710319A1 (fr) | 1996-05-08 |
EP0710319B1 true EP0710319B1 (fr) | 1998-01-28 |
Family
ID=3888178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95918479A Expired - Lifetime EP0710319B1 (fr) | 1994-05-30 | 1995-05-16 | Procede et dispositif de detection et/ou de mesure d'au moins un parametre geophysique sur une carotte |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0710319B1 (fr) |
AT (1) | ATE162877T1 (fr) |
BE (1) | BE1008302A3 (fr) |
CA (1) | CA2167825C (fr) |
DE (1) | DE69501539T2 (fr) |
NO (1) | NO308869B1 (fr) |
RU (1) | RU2142052C1 (fr) |
WO (1) | WO1995033123A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2996305A1 (fr) * | 2012-10-02 | 2014-04-04 | Segem S A S | Systeme de prelevement et de mesure en continu |
CA2944062C (fr) | 2014-05-13 | 2018-11-06 | Bauer Maschinen Gmbh | Dispositif de forage immerge et procede d'obtention et d'analyse d'echantillons de sol du fond d'un plan d'eau |
RU2666280C1 (ru) * | 2017-05-11 | 2018-09-06 | Публичное акционерное общество "Акционерная нефтяная Компания "Башнефть" | Способ увязки результатов замеров фильтрационно-ёмкостных свойств керна и геофизических исследований по глубине скважины |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4854163A (en) * | 1987-09-28 | 1989-08-08 | Amoco Corporation | Beltless core conveyor system for wellsite analysis |
-
1994
- 1994-05-30 BE BE9400537A patent/BE1008302A3/fr not_active IP Right Cessation
-
1995
- 1995-05-16 RU RU96103629A patent/RU2142052C1/ru active
- 1995-05-16 AT AT95918479T patent/ATE162877T1/de not_active IP Right Cessation
- 1995-05-16 DE DE69501539T patent/DE69501539T2/de not_active Expired - Lifetime
- 1995-05-16 EP EP95918479A patent/EP0710319B1/fr not_active Expired - Lifetime
- 1995-05-16 CA CA002167825A patent/CA2167825C/fr not_active Expired - Lifetime
- 1995-05-16 WO PCT/BE1995/000048 patent/WO1995033123A1/fr active IP Right Grant
-
1996
- 1996-01-29 NO NO960367A patent/NO308869B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO960367L (no) | 1996-01-29 |
WO1995033123A1 (fr) | 1995-12-07 |
CA2167825A1 (fr) | 1995-12-07 |
RU2142052C1 (ru) | 1999-11-27 |
EP0710319A1 (fr) | 1996-05-08 |
BE1008302A3 (fr) | 1996-04-02 |
DE69501539D1 (de) | 1998-03-05 |
DE69501539T2 (de) | 1998-06-10 |
ATE162877T1 (de) | 1998-02-15 |
CA2167825C (fr) | 2001-12-11 |
NO960367D0 (no) | 1996-01-29 |
NO308869B1 (no) | 2000-11-06 |
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