EP1564368A2 - Appareil de carottage sous-marin - Google Patents

Appareil de carottage sous-marin Download PDF

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Publication number
EP1564368A2
EP1564368A2 EP05100904A EP05100904A EP1564368A2 EP 1564368 A2 EP1564368 A2 EP 1564368A2 EP 05100904 A EP05100904 A EP 05100904A EP 05100904 A EP05100904 A EP 05100904A EP 1564368 A2 EP1564368 A2 EP 1564368A2
Authority
EP
European Patent Office
Prior art keywords
turret
base
core sampling
sampling
core
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.)
Withdrawn
Application number
EP05100904A
Other languages
German (de)
English (en)
Other versions
EP1564368A3 (fr
Inventor
Alessandro Bacchelli
Giancarlo Da Re
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEOPOLARIS S.R.L.
Original Assignee
Alessandro Bacchelli
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alessandro Bacchelli filed Critical Alessandro Bacchelli
Publication of EP1564368A2 publication Critical patent/EP1564368A2/fr
Publication of EP1564368A3 publication Critical patent/EP1564368A3/fr
Withdrawn legal-status Critical Current

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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
    • E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being specially adapted for operation under water
    • 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
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling
    • E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors

Definitions

  • the present invention relates to the field of the samplings of subsoil material for the purpose of analyzing the chemical and/or physical properties thereof. More particularly, the object of the invention is an underwater core sampling apparatus which can be used in the above mentioned field.
  • Characterization of underwater beds is also essential for evaluating the environmental impact and effects on the aquatic ecosystems of interventions and operations such as routine or non-scheduled harbor dredging, the building of harbor infrastructures (wharfs, jetties, basins etc.), the laying of cables and pipes, monitoring of protected marine areas or sites subjected to environmental risks.
  • this research is aimed at identifying specific apparatus for underwater core sampling or samplings in situ of underwater beds, able to minimize the physical alteration and contaminations of the samples, and which can be used with small sea crafts, such as boats up to 15 meters or small floating structures, so as to be used in any marine sedimentary deposit, from the coastal zone to the limit of the continental shelf, in river, lake and lagoon areas.
  • the present invention achieves the objects mentioned above thanks to the apparatus whose essential features are defined by the first of the annexed claims.
  • the apparatus comprises a turret 1 with a network structure in stainless steel, comprising in turn: a base 1a, generally quadrilateral; four external uprights 1b which rise up perpendicularly from the base 1a in proximity of respective angles thereof; four internal uprights 1c, which also extend perpendicularly to the base 1a from points on the diagonals thereof, said points being all at the same distance from the centre, and closer to said centre than the external uprights 1b; and a flat covering frame 1d which joins the upper ends of the uprights 1b, 1c, closing the turret at the top in a parallel arrangement to the base 1a.
  • the base 1a has, at the four angles, respective adjustable feet 2, for allowing the apparatus to rest on the sea bed, or any other underwater bed wherein sampling of the material to be analyzed is to take place.
  • Each of the feet 2 is controlled by an oil-pressure linear actuator (not shown), in order to enable independent variation of the extension of the four feet from the base 1a of the turret 1.
  • a hook-like or ring-like member 3, not shown in figure 1, projects from the top covering frame 1d for allowing the turret 1 to engage with external lifting/transport means of, as will be cleared further on.
  • the internal uprights 1c of the turret 1 act as guides for the sliding of a quadrilateral plate 4, slidingly connected to said uprights at the four angles, and consequently able to translate from the top frame 1d towards the base 1a, and vice versa, remaining parallel to both.
  • the movement of the plate 4 is controlled by a drive system with a wire 5 and deviation pulleys 6a, 6b, linked to a winch 7 with oil-pressure operation, fixedly mounted on the base 1a along one side thereof.
  • the wire 5 unwinds from the winch 7 to a set of pulleys 6a supported below the top frame 1d, and also around a pulley 6b placed on the upper face of the sliding plate 4.
  • a wire-winding pulley is finally provided at the other end of the wire 5, that is to say the end opposite to that connected to the winch 7.
  • This wire-winding pulley is arranged over the base 1 on the side opposite to the winch 7, and cannot be seen in the drawings because it is concealed by the schematization of an oil-pressure unit 9, to be described in greater detail shortly.
  • a vibrating hammer 10 represented schematically in the drawings, is attached to the lower face of the plate 4, that is to say the face opposite that with the pulley 6b.
  • the hammer 10, in turn with oil-pressure operation, is of a known type if considered as such - employing the technology known as "vibracoring" in the field of drilling and sampling - and therefore will not be described in detail.
  • the hammer 10 thrusts a sampling probe, generally denoted at 8 and comprising a linear core barrel 11, with tubular structure and length corresponding substantially to the maximum length of the sample of material which can be taken.
  • the barrel 11 projects downwards in a central position for passing through the base 1a by inserting slidingly in a hole 1e formed to the purpose in a suitable position.
  • a tubular head 12 with a cutting edge 12a is screwed coaxially at the free end of the barrel 11.
  • a sleeve 13 is engaged, with diameter smaller than that of the head 12 so as to define in co-operation therewith a toroidal gap 14.
  • the sleeve 13 acts as a support for one end of a tubular sheath 15 for lining the core (that is to say, the sample with a substantially cylindrical shape) of material to be taken.
  • the sheath 15 made of a material such as white nylon, slightly stretchable in a radial direction but substantially non-stretchable in an axial direction, is fitted around the sleeve 13, in the gap 14, in order to be free to unfold axially inside the barrel 11.
  • a check valve 16 is arranged, formed by a convex diaphragm made of an elastically flexible material.
  • the diaphragm is notched radially in such a way as to open towards the interior of the barrel 11 (figure 8), allowing the passage of the sampling material therein, and to close elastically in such a way as to block the entrance of the barrel (figure 9), preventing release of the aforesaid material.
  • video cameras 18 and lighting devices 17 can be seen in figures 2 to 4, supported by the turret 1 on the base 1a and on the top frame 1d, to allow remote vision of the sampling zone and consequently of the core sampling operations, from a back-up boat or from land.
  • the lighting devices 17 and the video cameras 18, as well as the oil-pressure unit 9, are electrically powered and controlled by means of a cable system, not shown, which connects the apparatus to the back-up boat or to land. Similar connection cabling is also provided for the surface transmission of the video signal emitted by the video cameras 18.
  • the core sampling operations with the apparatus according to the present invention are carried out in the following manner. Assuming that a back-up boat is employed, the boat with the apparatus on board is positioned at the point of the seabed wherein the sampling has to be carried out.
  • a DGPS antenna can be used for accurate positioning, dialoguing with a PC provided with appropriate navigation software.
  • the turret initially without the probe 8, is equipped with the same.
  • the cutting head 12 with the sheath-holder sleeve 13 and the check valve 16 is set up separately, arranging the sheath 15.
  • the sheath cut to size beforehand according to the length of the core which is to be sampled, is folded for the greater part of its extent in such a way to become axially compressed around the sleeve 13.
  • An O-ring seal is placed around the sheath at the base of the sleeve, for improved tightness of the connection.
  • the sheath is in the shape of a tubular portion open at both ends, the end intended to remain inside the barrel 11 is closed by a knot.
  • a number of punctures are also carried out in the sheath near the closed end for assisting the passage of the water during subsequent descent of the apparatus, so as to avoid untimely unfolding of the sheath.
  • the head 12 can finally be screwed to the barrel 11.
  • the apparatus Having attached the probe 8 to the hammer 10, with the plate 4 in the position of maximum elevation and therefore with the barrel 11 completely withdrawn inside the turret 1, the apparatus is lowered underwater, hooked via the member 3 by suitable lifting means.
  • the video cameras 18 make it possible to check that the point of resting on the seabed does not have evident obstacles.
  • the turret 1 finally touches the seabed as in figure 5.
  • the linear actuators which control the position of the feet 2 are operated in such a way as to align the turret in a vertical direction.
  • a spirit level (not shown) may advantageously be arranged on the turret in the visual field of the camera 18 on the base 1a.
  • the spirit level will give the operator on board the back-up boat the necessary control feedback.
  • the feet 2 will be maneuvered until the spirit level shows that the turret is perfectly vertical.
  • the hammer 10 is operated and thrusts the penetration of the probe 8 in the sediment to be sampled.
  • the consequent descent through gravity of the plate 4 is accompanied by release of the wire 5 from the winch 7.
  • To the penetration of the probe assisted by the cutting head 12, there responds the filling of the barrel 11, and more specifically of the sheath 15, by the sediment (figure 8).
  • Relative sliding between sediment and probe causes, in addition to the opening of the valve 16, axial unfolding of the sheath 15 from the sleeve 13.
  • the verticality of penetration and therefore the stratigraphic accuracy of the sampling will be guaranteed by the positioning of the turret 1, regulated as described above.
  • the head 2 After detaching the probe 8 from the hammer 10, the head 2 is unscrewed and the core removed, exerting a traction on the end part of the sheath 15 and carefully placing it inside an appropriate rigid support to avoid bends of the core with consequent physical alterations of the sampled material.
  • the core can then be sectioned and placed in refrigerated sorting boxes so as to be delivered for the analyses.
  • the apparatus according to the invention fully achieves the above mentioned objects. It allows unadulterated sampling of the various stratigraphic levels of the sediment, thanks to the system for positioning and stabilizing the turret on the surface of the seabed.
  • the turret remains connected to the boat, allowing high bathymetries of use yet ensuring regular sampling of the core in a continuous manner and without sudden movements.
  • Another advantage of the apparatus according to the invention comes from the fact that, despite the high power required for driving the penetration of the probe 8, during the same penetration the thermal conditions of the sediments traversed remain unchanged, which does not happen e.g. with core samplers of the rotary type. In this way also the non-alteration of the volatile compounds in the sample is always guaranteed.
  • the underwater video cameras 18 and relative lighting devices 17 allow direct control of the operations from a control panel installed on board the back-up boat used. This increases the level of safety of the sampling operations, allows video filming of the same by way of visual documentation and immediate detection of anomalies during the operations of driving the core sampler and during subsequent recovery of the core.
  • the sheath covering system allows the material taken from the seabed to be immobilized, avoiding detrimental mixing caused by the circulation of fine sediment and above all of the interstitial water of the higher or lower levels.
  • a PVC covering is present inside the barrel 11 to avoid direct contact of the sampled material with the metal of the apparatus.
  • the covering is not worn out and destroyed for each sampling but instead, thanks to the insulation guaranteed by the sheath, it can be reused, thus considerably lowering operation costs and avoiding the production of large amounts of waste plastic material.
  • the sheath 15 for covering the core allows intact reproduction of the stratigraphy and also facilitates transport of the same core, which can be easily analyzed and studied at a later date, once taken onshore. In this it can be avoided that the operations of dividing and removal of the various segments to be analyzed are carried out on board the boat, where subsequent sampling of other cores would be hindered. These operations can take place in a laboratory, where staff have available all the appropriate utilities such as unsalted and uncontaminated running water, refrigeration means, chemical solvents and miscellaneous equipment, which improve the overall quality of sampling.
  • the analysis staff (minimum of 2-3 people) do not therefore have necessarily to go aboard, avoiding all the logistic and economic consequences which this entails, above all in terms of safety of the environment and of workers.
  • analyses may also be performed immediately after bringing the material to the surface, such as measuring the pH value, the Redox potential or the concentration of volatile substances.
  • the material of which the sheath is made allows needles to be driven in, and small incisions to be made for the use of specific instruments, without jeopardizing the intactness of the core which in any case remains completely wrapped in the sheath.
  • the easy handling leads to considerable ease of positioning of the apparatus, with consequent saving in energy and financial resources, and labor costs. There may be less need for official authorizations, and for finding suitable boats not always available in every port or coastal area. Interruption of the core sampling operations and a rapid return to the port in case of sudden and fast onset of adverse weather conditions are also guaranteed.
  • the apparatus can then also be used in difficult working situations, such as for example near port entrances, in industrial port areas with particularly high traffic, and in areas with current and swell conditions which are unfavorable to sampling operations.
  • the apparatus according to the invention allows cores with diameter up to 90 mm to be taken, reaching bathymetries to a depth of 100 meters and penetration to 6 meters according to the powers applied and, naturally, the type of sediment found, with totally satisfactory results in terms of non-disturbability of the samples and stratigraphic reconstruction, and a good percentage of recovery in relation to the penetration carried out. Problems of use on sandy beds do not occur, not even where there is gravel and pebbles with a diameter of a few centimeters, or on sediments with a high percentage of organic material such as shell or vegetal residues.
  • the sheath core sampling system of the embodiment illustrated although advantageous on the basis of what is described above, does not constitute in itself and per se an essential feature of the invention, which lies more generically in the configuration of the apparatus with support turret to be rested on the bed, and core sampling means which slide in relation to the turret.
  • the turret can moreover change in relation to the preferred embodiment, as regards construction, dimensions, materials and accessories, though assuring a working similar to the exemplified embodiment.
  • the vibrating hammer may be replaced by different systems for driving the core sampling means. Namely, a rotary drill mast can be used, to be mounted directly in a sliding manner on the inner uprights 1c, thus replacing the whole assembly of plate 4 and hammer 10.
  • the same probe in order to avoid the rotation of the probe that could damage the integrity of the sample, the same probe will be connected to the drill mast so as to be free to rotate with respect thereto, e.g. by inserting the probe coaxially within a pipe integral to the mast, while the mutual axial sliding between the pipe and the probe is prevented.

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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)
  • Earth Drilling (AREA)
EP05100904A 2004-02-17 2005-02-09 Appareil de carottage sous-marin Withdrawn EP1564368A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITLI20040004 ITLI20040004U1 (it) 2004-02-17 2004-02-17 S.h.s.b.d. self sheating-hydraulic-sampling-bottom-device dispositivo di campionamento fondali autoinguainante idraulico.
ITLI20040004U 2004-02-17

Publications (2)

Publication Number Publication Date
EP1564368A2 true EP1564368A2 (fr) 2005-08-17
EP1564368A3 EP1564368A3 (fr) 2005-11-09

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ID=34685612

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EP05100904A Withdrawn EP1564368A3 (fr) 2004-02-17 2005-02-09 Appareil de carottage sous-marin

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EP (1) EP1564368A3 (fr)
IT (1) ITLI20040004U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2354438A1 (fr) 2009-12-29 2011-08-10 Geopolaris S.r.l. Appareil de carottage
ITFI20100097A1 (it) * 2010-05-07 2011-11-08 Geopolaris S R L Apparecchiatura integrata per sondaggio e ricerca su fondali subacquei
GB2510581A (en) * 2013-02-07 2014-08-13 Geomarine Ltd Seabed measurement or sampling system with string of rods
EP2877839A4 (fr) * 2012-07-27 2016-03-09 Nautilus Minerals Pacific Pty Appareil et procédé pour effectuer des essais sous-marins
CN111964961A (zh) * 2020-10-09 2020-11-20 吉林大学 全自动冰下沉积物振动取样器
US11041344B1 (en) * 2019-12-03 2021-06-22 Hunan University Of Science And Technology Wireline coring recovery system of a seafloor drilling rig and method of using same
CN113309478A (zh) * 2021-06-25 2021-08-27 中国科学院地球环境研究所 一种适合水上和冰上作业的冷冻钻系统
CN114436404A (zh) * 2022-02-18 2022-05-06 中国环境科学研究院 一种底泥原位生物修复设备
CN116696267A (zh) * 2023-08-07 2023-09-05 胜利信科(山东)勘察测绘有限公司 一种海上钻井平台海洋岩土钻孔取心装置

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009283A (en) * 1963-01-29 1965-11-10 Inst Francais Du Petrole Improvements in and relating to apparatus for submarine core drilling
US3301336A (en) * 1964-03-24 1967-01-31 Wadsworth W Mount Method and apparatus for deep sea bottom core sampling
US3442339A (en) * 1967-02-17 1969-05-06 Hughes Tool Co Sea bottom coring apparatus
US3469820A (en) * 1967-07-05 1969-09-30 Ocean Science & Eng Drill pipe stabilizing apparatus
US3516503A (en) * 1968-12-23 1970-06-23 Us Interior Electrically controlled and powered submarine rotary corer system
US3533478A (en) * 1967-11-07 1970-10-13 Jean Michel Marie Tissier Drilling machine,in particular for offshore drilling
AU415610B2 (en) * 1968-10-18 1971-07-30 Improvements in and relating to drilling equipment
GB1244382A (en) * 1967-12-29 1971-09-02 Werf Conrad Ed Stork Hijsch N Device for taking soil samples
FR2085365A7 (en) * 1970-04-14 1971-12-24 Cocean Core sampler - particularly for under water drilling
US3670830A (en) * 1969-04-09 1972-06-20 Conrad & Hijsch Nv Drilling apparatus
GB1321919A (en) * 1970-09-24 1973-07-04 Inst Francais Du Petrole Underwater core-sampling device
NL7414201A (en) * 1974-10-30 1976-05-04 Ruiter Verenigde Bedrijven B V Soil sampler driving mechanism - has vertical guide for sampling pipe and accommodating compressed air driving ram
GB2152100A (en) * 1983-12-20 1985-07-31 Frederick William Wink Vibratory drill apparatus
EP0293251A2 (fr) * 1987-05-29 1988-11-30 Conoco Inc. Gabarit modulaire pour le forage de puits sous-marins et procédé pour l'installation d'un tel gabarit
JPH04174189A (ja) * 1990-11-05 1992-06-22 Koken Kogyo Kk 海底コアサンプリング装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009283A (en) * 1963-01-29 1965-11-10 Inst Francais Du Petrole Improvements in and relating to apparatus for submarine core drilling
US3301336A (en) * 1964-03-24 1967-01-31 Wadsworth W Mount Method and apparatus for deep sea bottom core sampling
US3442339A (en) * 1967-02-17 1969-05-06 Hughes Tool Co Sea bottom coring apparatus
US3469820A (en) * 1967-07-05 1969-09-30 Ocean Science & Eng Drill pipe stabilizing apparatus
US3533478A (en) * 1967-11-07 1970-10-13 Jean Michel Marie Tissier Drilling machine,in particular for offshore drilling
GB1244382A (en) * 1967-12-29 1971-09-02 Werf Conrad Ed Stork Hijsch N Device for taking soil samples
AU415610B2 (en) * 1968-10-18 1971-07-30 Improvements in and relating to drilling equipment
US3516503A (en) * 1968-12-23 1970-06-23 Us Interior Electrically controlled and powered submarine rotary corer system
US3670830A (en) * 1969-04-09 1972-06-20 Conrad & Hijsch Nv Drilling apparatus
FR2085365A7 (en) * 1970-04-14 1971-12-24 Cocean Core sampler - particularly for under water drilling
GB1321919A (en) * 1970-09-24 1973-07-04 Inst Francais Du Petrole Underwater core-sampling device
NL7414201A (en) * 1974-10-30 1976-05-04 Ruiter Verenigde Bedrijven B V Soil sampler driving mechanism - has vertical guide for sampling pipe and accommodating compressed air driving ram
GB2152100A (en) * 1983-12-20 1985-07-31 Frederick William Wink Vibratory drill apparatus
EP0293251A2 (fr) * 1987-05-29 1988-11-30 Conoco Inc. Gabarit modulaire pour le forage de puits sous-marins et procédé pour l'installation d'un tel gabarit
JPH04174189A (ja) * 1990-11-05 1992-06-22 Koken Kogyo Kk 海底コアサンプリング装置

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2354438A1 (fr) 2009-12-29 2011-08-10 Geopolaris S.r.l. Appareil de carottage
ITFI20100097A1 (it) * 2010-05-07 2011-11-08 Geopolaris S R L Apparecchiatura integrata per sondaggio e ricerca su fondali subacquei
EP2877839A4 (fr) * 2012-07-27 2016-03-09 Nautilus Minerals Pacific Pty Appareil et procédé pour effectuer des essais sous-marins
GB2510581A (en) * 2013-02-07 2014-08-13 Geomarine Ltd Seabed measurement or sampling system with string of rods
US11041344B1 (en) * 2019-12-03 2021-06-22 Hunan University Of Science And Technology Wireline coring recovery system of a seafloor drilling rig and method of using same
CN111964961B (zh) * 2020-10-09 2022-05-27 吉林大学 全自动冰下沉积物振动取样器
CN111964961A (zh) * 2020-10-09 2020-11-20 吉林大学 全自动冰下沉积物振动取样器
CN113309478A (zh) * 2021-06-25 2021-08-27 中国科学院地球环境研究所 一种适合水上和冰上作业的冷冻钻系统
CN113309478B (zh) * 2021-06-25 2022-04-19 中国科学院地球环境研究所 一种适合水上和冰上作业的冷冻钻系统
CN114436404A (zh) * 2022-02-18 2022-05-06 中国环境科学研究院 一种底泥原位生物修复设备
CN114436404B (zh) * 2022-02-18 2022-09-16 中国环境科学研究院 一种底泥原位生物修复设备
CN116696267A (zh) * 2023-08-07 2023-09-05 胜利信科(山东)勘察测绘有限公司 一种海上钻井平台海洋岩土钻孔取心装置
CN116696267B (zh) * 2023-08-07 2023-10-27 胜利信科(山东)勘察测绘有限公司 一种海上钻井平台海洋岩土钻孔取心装置

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Publication number Publication date
ITLI20040004U1 (it) 2004-05-17
EP1564368A3 (fr) 2005-11-09

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