EP3059384B1 - Dispositif et procede de prelevement d'echantillons par carottage de formations sedimentaires - Google Patents

Dispositif et procede de prelevement d'echantillons par carottage de formations sedimentaires Download PDF

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Publication number
EP3059384B1
EP3059384B1 EP16155791.3A EP16155791A EP3059384B1 EP 3059384 B1 EP3059384 B1 EP 3059384B1 EP 16155791 A EP16155791 A EP 16155791A EP 3059384 B1 EP3059384 B1 EP 3059384B1
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EP
European Patent Office
Prior art keywords
sample
closure
receiving space
carrier tool
receiving
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.)
Active
Application number
EP16155791.3A
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German (de)
English (en)
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EP3059384A1 (fr
Inventor
Volker Herwig
Daniel Bartminn
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Innogy SE
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Innogy SE
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Priority to PL16155791T priority Critical patent/PL3059384T3/pl
Publication of EP3059384A1 publication Critical patent/EP3059384A1/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
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • E21B25/04—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe the core receiver having a core forming cutting edge or element, e.g. punch type core barrels
    • 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
    • E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure

Definitions

  • the invention relates to a device and a method for removing core samples from sediment formations with a carrier tool and with a sample receiving housing attached to the carrier tool, which delimits a sample receiving space and which comprises a cutting geometry or a cutting shoe at a leading end.
  • So-called piercing cylinders are known for taking soil samples from a ground, which comprise a linkage and a thin-walled steel cylinder attached to the linkage, which is driven into the ground with a leading cutting shoe.
  • the soil sample to be taken penetrates into the cavity enclosed by the steel cylinder. If the steel cylinder is pulled, the so-called core sample or probe sample is located in the cavity enclosed by the steel cylinder and remains there due to the binding of the pulled sediment.
  • the steel cylinder is detachably attached to the carrier tool, for example to a linkage. Immediately after removal of the probe sample from the ground, the steel cylinder is separated from the carrier tool and sealed airtight with one or more rubber caps.
  • devices for removing core samples from earth formations are known, which are fastened, for example, to the leading end of a drill pipe.
  • Such a device for taking core samples of earth formations that are intersected by a cylindrical hole is, for example, from DE 1814449 A1 known.
  • Bacterial anaerobic corrosion is a bacteria indirectly induced oxidation of metals. Especially in humid environments and in the presence of sulfur bacteria in the ground, it may happen that the structures introduced into the ground do partially decompose. This problem often occurs in buried pipes, steel sheet piling, oil tanks or piles of foundations in the seabed.
  • a known method for soil sampling is described for example in DIN 4021.
  • this method suffers from the disadvantage that it is hardly possible to isolate the sample according to its original environment because the air-tight and pressure-tight closure of the sample is only ensured after removal from the relevant sediment formation.
  • An apparatus and a method for taking core samples from sediment formations is known, for example, from US Pat US 2012/0073875 A1 known.
  • the device can not produce an airtight seal of the sample obtained.
  • the invention is therefore based on the object to provide an apparatus and a method for removing core samples from sediment formations, which take this problem into account.
  • One aspect of the invention relates to an apparatus for removing core samples from sediment formations with a carrier tool and having a sample receiving housing attached to the carrier tool defining a sample receiving space and having a cutting geometry or cutting shoe at a leading end, the sample receiving housing comprising a closure which one essentially airtight conclusion of the sample receiving space can be produced in situ.
  • the sample receiving housing with a closure such that it can be closed in situ, that is to say still within the sediment formation from which a core sample is to be drawn. This allows substantial airtight and pressure-tight termination of the core sample within the sample receiving space before the core sample is drawn.
  • a core sample or probe sample can be obtained in a pressure-tight and airtight manner at the exploration location.
  • the intended sample may thus be salvaged, with the exception of temperature, according to the surrounding environment prevailing at the exploration location, and then stored accordingly.
  • a carrier tool can be understood to mean a drill pipe, a guide rod or another type of linkage, via which the sample receiving housing can be spent in the sediment formation to be sampled.
  • a steel cylinder may be provided whose leading end in the feed direction is open at least until the feed into the sediment formation to be sampled.
  • the closure comprises a spherical, half-shell-shaped closure body, which is displaceable between a first open position and a second closed position, which forms a concave bottom of the sample receiving space in the first open position and which encloses a core sample in the second closed position.
  • This half-shell closure or hemispherical closure may comprise a single half-shell which, upon rotation about a virtual sphere center, is displaced from a first open position to a second closed position.
  • the closure may comprise two quarter-shell-shaped closure bodies which are displaceable in opposite directions to one another and thus perform an opening movement and a closing movement.
  • the closure body is expediently designed as a sample spoon, so that this on displacement from the first open position to the second closed position a Part of the core sample from the sediment formation cuts out or dissolves.
  • closure comprises two quarter-shell-shaped closure body
  • these quarter-shell closure body expediently also each form a kind of sample spoon.
  • the closure body is displaceable spring-actuated.
  • the closure body can be displaced from the first open position to the second closed position by a tensile force applied to the carrier element.
  • a force acting on the closure body spring can be biased by the driving of the support member in the soil to be sampled, whereas a tensile force applied to the carrier element causes relaxation of the spring preferably designed as a compression spring, which then causes a displacement of the closure body in the second closed position becomes.
  • the sample receiving chamber housing has a spring-mounted bottom plate, which is sealed at the edge against a Um chargedswad the sample receiving space and forms a cavity with the closure body to enclose the core sample.
  • the closure comprises a closure panel with a plurality of lamellar closure bodies which define an approximately circular closure opening with a variable diameter.
  • the closure body form an iris diaphragm, which can be brought from a first open to a second closed position by a rotation of parts of the sample receiving housing.
  • the closure is designed as a double iris lamella closure, wherein a leading first stage of the shutter can serve to separate the core sample or the probe sample from the sediment formation. A second stage of the shutter can serve only to seal the sample receiving space.
  • the closure can also be designed in one stage.
  • a gap may be provided as a lock, which can be filled with a potting compound.
  • a lamellar shutter is integrated in a cover of the sample receiving housing. During the penetration of the sample receiving housing into the ground, the shutter is open. Before the core sample is subsequently recovered, the shutter is closed.
  • the lamellar closure bodies which are subjected to pressure during the recovery of the core sample by the sample body in the closed state, constitute a pressure and airtight closure of the core sample.
  • the pressure and airtight seal can be achieved by a special surface structure and / or surface texture of the lamellar closure body, for example by interlocking lip seals between the lamellar closure bodies.
  • the opening and closing movement of the shutter can be initiated via a rotational movement of the carrier tool.
  • a cover of the sample receiving housing can be rotatably formed to a surrounding wall of the sample receiving housing.
  • the sample receiving housing may be formed, for example, as a cylinder or cylindrical container.
  • the closure is designed as a flap closure with at least two sealing flaps closing against one another.
  • the sample receiving housing prefferably be designed as a sample receiving container preferably detachably attached to the carrier tool, for example in the form of a cylinder.
  • the sample receiving housing is provided with a Vergussmassenan gleich which communicates with the sample receiving space and over which the sample receiving space is sealed with a potting compound.
  • potting compound is for example a paraffin or other viscous sealant in question.
  • the sample receiving housing or the sample receiving space is expediently provided at its trailing in the feed direction end with at least one vent, so that the air can escape within the sample receiving space during insertion.
  • the potting compound which may be formed for example as paraffin or other sealant, the sample receiving space can be sealed in situ.
  • a Vergussmassenreservoir may be provided on or in the carrier tool, which is connected to the sample receiving space and which can be pressurized, for example, after driving the sample receiving housing into the sediment formation to be sampled so that the sealing compound seals the sample receiving space or penetrates into it.
  • the closure comprises a drive which is selected from a group comprising electrical, pneumatic, hydraulic or mechanical drives.
  • the drive is preferably used to relocate the closure body or bodies.
  • the closure can be actuated via a gear which converts a feed movement of the carrier tool into a displacement movement of a closure body, which converts an axial movement or rotational movement of the carrier tool into a displacement movement of a closure body.
  • a further aspect of the invention relates to a method for removing core samples from sediment formations with a device comprising a carrier tool and a sample receiving housing attached to the carrier tool which delimits a sample receiving space and which comprises a cutting geometry or a cutting shoe at a leading end, wherein the sample receiving space with a Closure is substantially hermetically sealable, the method comprising driving the sample receiving housing into an undisturbed sediment formation, such that the core sample to be removed is at least partially enclosed by the sample receiving space, wherein in a subsequent process step the sample receiving space is sealed in situ and sealed and then the sample receiving housing is pulled over the carrier tool.
  • the sample receiving space is sealed or sealed in situ with a potting compound before the core sample is drawn.
  • the method according to the invention is preferably carried out using a device having one or more of the features described above, and ideally in an arrangement which corresponds to the geometric boundary conditions of the standardized and known sampling devices.
  • the invention preferably comprises the devices described above arranged vertically.
  • FIG. 1 shows a device for taking out core samples according to the prior art.
  • FIG. 1 Device shown comprises a carrier tool 1 in the form of a linkage, which is arranged displaceably in a guide hood 2.
  • the guide hood 2 comprises a guide plate 3, with which the device can be set up on a building ground 4.
  • a piercing cylinder 5 is arranged at the leading end of the carrier tool 1.
  • the piercing cylinder 5 is formed as open on its leading side, thin-walled steel cylinder.
  • An anvil 6 is fastened to the end of the carrier tool 1 or the carrier rod remote from the piercing cylinder 5, on which case a drop weight 8 guided on a percussion linkage 7 can act.
  • the carrier tool 1 is driven with the piercing cylinder 5 in the ground 4.
  • the sample receiving space 9 enclosed by the piercing cylinder is filled with the probe sample or with the core sample. If the piercing cylinder 5 is pulled, the core sample is located in the sample receiving space 9 surrounded by the piercing cylinder 5.
  • FIGS. 2a to 4b showing several variants of a device according to the invention.
  • FIG. 2a shows a carrier tool 1 with a mounted on the leading end of the carrier tool 1 sample receiving housing 10 in the form of an open cylinder which surrounds the sample receiving space 9 and which is provided at its leading end with a circumferential cutting geometry 11.
  • the cutting geometry 11 is designed as a circumferential, possibly sharpened edge of the opening 19 of the sample receiving space 9 pointing in the feed direction of the device.
  • the sample receiving housing 10 further comprises a closure body 12, which is formed in the embodiment according to Figures 2a and 2b as a half-shell closure, that is spherical, half-shell-shaped.
  • the closure body 12 is rotatable about an imaginary center defining the radius of the closure body 12, from the in FIG. 2a position shown in the in FIG. 2b shown position.
  • FIG. 2a shows the closure body 12 in the first open position
  • FIG. 2b shows the closure body 12 in the second, closed position.
  • the closure body 12 defines a bottom of the sample receiving space 9.
  • the closure body 12 forms in the case of this embodiment, a cavity 13 for receiving a core sample.
  • the sample receiving housing 10 is designed as a cylindrical container 14, which communicates via an opening 15 designed as Vergussmassenan gleich with a Vergussmassenreservoir 16 within the carrier tool 1.
  • the sample receiving housing 10 or the cylindrical container 14 via the carrier tool 1 into the sediment formation of the subsoil 4 to be sampled.
  • the ground 4 or the sediment penetrates into the cavity 13 formed by the closure body 12.
  • the closure body 12 for example by means of an electric, pneumatic or hydraulic drive in the in FIG. 2b
  • the closure body 12 releases sediment from the sediment formation and encloses it in the cavity 13.
  • the second in FIG. 2b shown position moving closure body 12 allows a subsequent flow the potting compound so that the potting compound completely seals and seals the sample receiving housing 10.
  • the device according to the invention shown also comprises as a sample receiving housing 10, a cylindrical container having a circumferential cutting geometry 11 which surrounds a leading, circular opening 19 of the sample receiving space 9, which is part of a relative to the housing 14 rotatable end cap 17.
  • the entire housing 14 forms the sample receiving space 9 in the sense of the invention.
  • a shutter 18 is integrated as a two-stage iris diaphragm, wherein the shutter 18 comprises a plurality of lamellar closure bodies 12.
  • the cylindrical container 14 is also provided on its side facing the carrier tool 1 with a Vergussmassenan gleich.
  • Rotation of the end cap 17 relative to the housing 14 causes opening and closing of the shutter 18, the shutter 18 comprising a first stage 20 facing away from the sample receiving space 9 and a second stage 21 facing the sample receiving space 9, enclosing a gate 22 between them ,
  • the lock 22 communicates via a channel 23 with a Vergussmassenreservoir 16 within the carrier tool.
  • the sample receiving housing 10 is driven on the carrier tool 1 with open shutter 18 in the ground 4, so that the core sample is enclosed by the housing 14 and the sample receiving space 9. Then, the shutter 18 is closed by means of a rotary movement of the carrier tool, wherein on the one hand the sediment body or the core sample is separated, on the other hand the sample receiving space 9 is closed substantially pressure-tight. Then, the sealing compound is introduced into the lock 22 via the channel 23, so that the sample receiving space 9 is sealed and sealed.
  • FIGS. 4a and 4b Another variant of the device according to the invention is in the FIGS. 4a and 4b shown.
  • a closure body 12 is also arranged in the form of a spherical half-shell.
  • the closure body 12 is as in the embodiment according to FIGS. 2a and 2b about an imaginary center, which defines the radius of curvature of the closure body 12, rotatably disposed within the container 14 and within the sample receiving space 9 and also forms a cavity 13 for receiving the core sample.
  • the apex of the convex side of the closure body 12 abuts against a resiliently mounted in the sample receiving space 9 bottom plate 24.
  • the bottom plate 24 is supported via a compression spring 25 against an end remote from the front opening of the housing 14 end wall 26.
  • the bottom plate is sealed at the edge against a surrounding wall 27 of the sample receiving space 9.
  • the return movement of the compression spring 25 initiates a rotational movement of the closure body 12, so that the closure body can enclose the core sample and can seal against the bottom plate 24.
  • a potting compound may be introduced from the potting compound reservoir 16 into the container 14 via the opening 15 in the end wall 26 of the container 14, and the container 14 to be sealed.
  • the container 14 After removal of the carrier tool 1 from the sediment formation or from the ground, the container 14 can be detached from the carrier tool 1 and deposited accordingly.

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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)
  • Sampling And Sample Adjustment (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Claims (10)

  1. Dispositif de prélèvement d'échantillons de carottes à partir de formations sédimentaires, comprenant un outil porteur (1) ainsi qu'un boîtier de réception d'échantillons (10) monté sur l'outil porteur (1), qui délimite un espace de réception d'échantillons (9) et qui comprend une géométrie de coupe (11) ou un sabot de coupe à une extrémité de guidage, le boîtier de réception d'échantillons (10) comprenant une fermeture, que la fermeture comprenant un corps de fermeture sphérique en forme de demi-coque (12), caractérisé en ce que le corps de fermeture peut être déplacé entre une première position ouverte et une deuxième position fermée, en ce que le corps de fermeture, dans la première position ouverte, forme un fond concave de l'espace de réception d'échantillons (9) et qui, dans la deuxième position fermée, entoure un échantillon de carotte, en ce que l'espace de réception d'échantillons (9) présente une plaque de fond (24) supportée à ressort, qui est étanchéifiée du côté du bord par rapport à au moins une paroi d'enveloppement (27) de l'espace de réception d'échantillons (9) et qui forme avec le corps de fermeture (12) une cavité (13) pour entourer l'échantillon de carotte de telle sorte qu'une fermeture étanche à l'air de l'espace de réception d'échantillons puisse être produite.
  2. Dispositif selon la revendication 2, caractérisé en ce que le corps de fermeture (12) est réalisé sous forme de cuillère de prélèvement qui, lors d'un déplacement de la première position dans la deuxième position, détache l'échantillon de carotte de la formation sédimentaire.
  3. Dispositif de prélèvement d'échantillons de carottes à partir de formations sédimentaires, comprenant un outil porteur (1) ainsi qu'un boîtier de réception d'échantillons (10) monté sur l'outil porteur (1), qui délimite un espace de réception d'échantillons (9) et qui comprend une géométrie de coupe (11) ou un sabot de coupe à une extrémité de guidage, le boîtier de réception d'échantillons (10) comprenant une fermeture, caractérisé en ce que la fermeture est réalisée sous forme de fermeture à clapet avec deux capuchons de fermeture (12) se fermant de manière hermétique l'un contre l'autre, laquelle permet de créer une terminaison étanche à l'air de l'espace de réception d'échantillon (9).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le boîtier de réception d'échantillons (10) est réalisé sous forme de récipient (14) monté de préférence de manière détachable sur l'outil porteur (1).
  5. Dispositif de prélèvement d'échantillons de carottes à partir de formations sédimentaires, comprenant un outil porteur (1) ainsi qu'un boîtier de réception d'échantillons (10) monté sur l'outil porteur (1), qui délimite un espace de réception d'échantillons (9) et qui comprend une géométrie de coupe (11) ou un sabot de coupe à une extrémité de guidage, le boîtier de réception d'échantillons (10) comprenant une fermeture, caractérisé en ce qu'une terminaison étanche à l'air de l'espace de réception d'échantillons (9) peut être réalisée avec la fermeture et en ce que le boîtier de réception d'échantillons (10) présente un raccord à masse de scellement qui communique avec l'espace de réception d'échantillons (9) et par le biais duquel l'espace de réception d'échantillons (9) peut être scellé avec une masse de scellement.
  6. Dispositif selon la revendication 5, dans lequel le boîtier de réception d'échantillon (10) est réalisé sous forme de récipient (14) monté de préférence de manière détachable sur l'outil porteur (1), caractérisé en ce que l'outil porteur (1) comprend un réservoir de masse de scellement (16) qui est raccordé à l'espace de réception d'échantillons (9).
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la fermeture comprend un entraînement qui est choisi parmi un groupe comprenant des entraînements électriques, pneumatiques, hydrauliques ou mécaniques.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la fermeture peut être actionnée par le biais d'une transmission qui convertit un mouvement axial ou un mouvement de rotation de l'outil porteur (1) en un mouvement de déplacement d'un corps de fermeture (12).
  9. Procédé de prélèvement d'échantillons de carottes à partir de formations sédimentaires, comprenant un dispositif comprenant un outil porteur (1) ainsi qu'un boîtier de réception d'échantillons (10) monté sur l'outil porteur, qui délimite un espace de réception d'échantillons (9) et qui comprend une géométrie de coupe (11) ou un sabot de coupe à une extrémité de guidage, l'espace de réception d'échantillons (9) pouvant être fermé de manière essentiellement étanche à l'air avec une fermeture, le procédé étant comprenant la récupération du récipient de réception d'échantillons dans une formation sédimentaire non perturbée, de telle sorte que l'échantillon de carottes à prélever soit au moins en partie entouré par l'espace de réception d'échantillons (9), l'espace de réception d'échantillons (9), dans une étape de procédé suivante, étant fermé et étanchéifié in situ avec une masse de scellement de telle sorte que le boîtier de réception d'échantillon (10) soit tiré par le biais de l'outil porteur (1).
  10. Procédé selon la revendication 9, caractérisé en ce qu'il est mis en oeuvre en utilisant un dispositif ayant les caractéristiques de l'une quelconque des revendications 1 à 8.
EP16155791.3A 2015-02-17 2016-02-16 Dispositif et procede de prelevement d'echantillons par carottage de formations sedimentaires Active EP3059384B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16155791T PL3059384T3 (pl) 2015-02-17 2016-02-16 Urządzenie oraz sposób pobierania próbek rdzeniowych z formacji osadowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015202836.4A DE102015202836A1 (de) 2015-02-17 2015-02-17 Vorrichtung und Verfahren zum Entnehmen von Kernproben aus Sedimentformationen

Publications (2)

Publication Number Publication Date
EP3059384A1 EP3059384A1 (fr) 2016-08-24
EP3059384B1 true EP3059384B1 (fr) 2018-06-06

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EP16155791.3A Active EP3059384B1 (fr) 2015-02-17 2016-02-16 Dispositif et procede de prelevement d'echantillons par carottage de formations sedimentaires

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EP (1) EP3059384B1 (fr)
DE (1) DE102015202836A1 (fr)
DK (1) DK3059384T3 (fr)
ES (1) ES2686099T3 (fr)
LT (1) LT3059384T (fr)
PL (1) PL3059384T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168947B (zh) * 2018-01-18 2024-03-05 中国石油大学(华东) 一种转盘式沉积物取样装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655644A (en) * 1926-11-22 1928-01-10 Baker Casing Shoe Company Core retainer for core barrels
US3383131A (en) * 1966-07-27 1968-05-14 Navy Usa Core sampler
DE1814449A1 (de) 1968-12-13 1970-06-25 Schlumberger Prospection Vorrichtung zum Entnehmen von Kernproben aus Erdformationen
US3807234A (en) * 1972-08-14 1974-04-30 Trippensee Corp Core catcher for core samplers
US3952817A (en) * 1974-03-08 1976-04-27 Longyear Company Basket type core retainer
GB8423365D0 (en) * 1984-09-15 1984-10-17 Vallally C O Sampling device
NL1015147C2 (nl) * 2000-05-10 2001-11-15 Eijkelkamp Agrisearch Equip Bv Grondmonsternemer.
US20050133267A1 (en) * 2003-12-18 2005-06-23 Schlumberger Technology Corporation [coring tool with retention device]
KR101062218B1 (ko) * 2009-06-19 2011-09-05 한국해양연구원 시료채취기에 구비된 슬라이드 방식의 코어 리테이너

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3059384T3 (pl) 2018-11-30
EP3059384A1 (fr) 2016-08-24
DE102015202836A1 (de) 2016-08-18
LT3059384T (lt) 2018-09-10
DK3059384T3 (en) 2018-09-10
ES2686099T3 (es) 2018-10-16

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