EP0456581B1 - In Tiefbohrlöchern verwendbare Flasche zur Entnahme einer Flüssigkeit - Google Patents

In Tiefbohrlöchern verwendbare Flasche zur Entnahme einer Flüssigkeit Download PDF

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Publication number
EP0456581B1
EP0456581B1 EP91401218A EP91401218A EP0456581B1 EP 0456581 B1 EP0456581 B1 EP 0456581B1 EP 91401218 A EP91401218 A EP 91401218A EP 91401218 A EP91401218 A EP 91401218A EP 0456581 B1 EP0456581 B1 EP 0456581B1
Authority
EP
European Patent Office
Prior art keywords
filling
bottle
sampling
duct
volume
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
Application number
EP91401218A
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English (en)
French (fr)
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EP0456581A1 (de
Inventor
Bernard Duvallet
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
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Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
    • E21B49/082—Wire-line fluid samplers

Definitions

  • the invention relates to deep boreholes, for which it is necessary to take samples of a mixture of liquid and gas. This type of maneuver finds its application for the surveillance of basements containing liquids, for hydrothermalism, for the petroleum industry, for nuclear power stations and for the drilling of basements where gas pockets are found.
  • the object of the invention is to remedy these drawbacks by proposing a small diameter sampling bottle which can sample a mixture of water and gas in depth and which is capable of delivering gas on the one hand and on the other hand share pure water.
  • document US-A-3 986 553 describes a device for withdrawing liquid, particularly suitable for geothermal drilling.
  • the sample collection is controlled by a weight 3 suspended inside the device and having a piercing tool.
  • the piercing tool passes through the inlet 8 of the reservoir and the external pressure of the liquid causes the latter to enter the storage tank 21.
  • a spring 12 closes a valve 27 to enclose the sample taken.
  • a filter 10 is placed at the inlet of the storage tank.
  • This device also includes a reservoir in which the sample is stored, a drain valve 2, a non-return valve 7 for closing the reservoir, once the sample is taken, and operating by a difference in pressures.
  • the longitudinal piston is actuated by a motor also to obstruct the filling line after filling.
  • the bottle according to the invention has the following embodiment. Indeed, the part of the filling line which is obstructed by the piston is a removable pressure compression valve, slidably mounted in the sleeve to compensate for the pressure difference between the filling volume and the entry of the line at external ends, the drain valve being used to be able to empty the sampling volume before filling the bottle.
  • an embodiment of the invention provides that the filling sleeve comprises a series of removable filters, placed on the filling pipe and being of declining rating for multi-stage filtration.
  • the external ends of the pipeline can be fitted with filters.
  • the filters used in the sleeve can be of the "sintered" type.
  • the determined value of pressure differences on the two sides of the non-return valve is 1 bar, ie 105 Pa.
  • the sampling volume consists of a bottle body screwed on the sleeve.
  • the tap is located on a drain pipe placed in communication with the sample volume opposite the filling pipe and surmounted by a protective cap placed at the front of the assembly.
  • the sampling bottle according to the invention is shown in Figure 1, detached in two fictitious parts for reasons of layout. On the left side, one can distinguish a tube which is the motor part, constituting the support body 30 of the bottle according to the invention. The end 32 of this support body 30 is located at the top of the right-hand part and constitutes the start of the sampling bottle.
  • This comprises a central body 2 inside which is taken the sampling volume 4 into which must be introduced a determined quantity of fluid taken.
  • that according to the invention comprises means for filling this filling volume 4, which must be operational when the bottle is on the sampling site, namely at the bottom of a deep borehole.
  • the bottle is also equipped with means for closing this sampling volume 4, when the latter is completely filled with the fluid to be sampled.
  • these means for filling with fluid and these means for closing the withdrawal volume are produced jointly by a set of elements which are mainly: a non-return valve 6 and a longitudinal piston 20, both acting on a filling line 10.
  • the filling of the bottle is carried out by means of the filling pipe 10, arranged mainly in a filling sleeve 8, occupying the top of the right part of FIG. 1.
  • This pipe 10 communicates with the outside by at least an outer end 12, namely two lateral orifices.
  • This filling pipe 10 opens into the filling volume 4 through a second end 14, next to the non-return valve 6.
  • a drain pipe 22 also puts the sample volume 4 in temporary communication with the outside to empty this sample volume 4, once the bottle is raised to the ground.
  • This drain pipe 22 is completed by a tap 24. The latter is incidentally surmounted by a cap 26 placed at the front of the assembly.
  • the tap 24 also constitutes an important element of the sampling bottle according to the invention. Indeed, its use is essential to make operational the main elements that are the non-return valve 6 and the piston 20.
  • the operation of the bottle according to the invention provides for creating a partial vacuum inside the volume 4 before the bottle is lowered to the sampling site. Once this operation has been carried out, the bottle is lowered into the borehole and the withdrawal of the piston 20 is controlled by means of a motor 18 placed behind the sleeve 8, preferably inside the support body 30.
  • a screw system nut 19 mounted at the outlet of the engine 30 allows the displacement of the piston 20, the stroke of which can be limited by stops 21.
  • At least one seal 23 is provided to seal between the filling pipe 10 and the engine 18.
  • the sleeve 8 of the sampling bottle according to the invention is detailed in FIGS. 3 and 4.
  • upper arrows represent the penetration of the fluid inside the pipe 10 by the external ends 12.
  • the latter are optionally supplemented by a filter 13, represented by broken lines across its ends 12.
  • the piston 20 is shown in the retracted position, so that the fluid can continue its path through the pipe 10 in the sleeve 8.
  • the supporting structure of the latter consists of the end 32 of the support body 30 into which is screwed a sleeve body 40 extended by a valve support 42.
  • the filters 44 are arranged, separated by O-rings 45. It is thus possible to constitute a filtration assembly à la carte, by choosing the filters 44 adapted to the fluid to be sampled and to the quality of the liquid and gas to be used after their sampling.
  • the first filter has been shown with a few large dotted lines to symbolize a large-caliber filtration, intended to stop large solid materials.
  • the following filters have decreasing filtration sizes, respectively.
  • the last filter can be of a very small filtration size, so as to take only high purity liquid. This type of filtration makes it possible to avoid blockages when the fluid removed contains a lot of mud.
  • a removable valve 46 is slidably mounted in the sleeve body 40, upstream of the filters 44. Its sealing is ensured by an O-ring 45.
  • This valve 46 has the function of keeping the hydrostatic pressure inside the sampling volume 10, in particular when the piston 20 clogs the filling pipe 10. In fact, to ensure sealing total of the sampling bottle during its ascent, it is preferable to again obstruct the pipe 10 using the piston 20, although the latter is already obstructed by the non-return valve 16. This introduction of the piston 20 in the sampling line 10 causes an increase in the pressure therein and in the sampling volume 4.
  • valve 46 has been shown detached from the spacer 48 placed between the latter and the filtration assembly.
  • the piston 20 enters the central part of the pipe 10, including the removable valve 46, it tends to reduce the volume trapped between itself and the non-return valve 6. Thanks to the sliding mounting of the removable valve 46, this volume is preserved by the appearance of an additional volume 49 of large diameter between the removable valve 46 and the spacer 48.
  • the non-return valve 6 is shown in FIG. 3 in the retracted position, the liquid entering the sample volume 10 through an internal end 14 of the sample line 10. This is produced by several holes made in the support of valve 42.
  • the spring 16 is placed in abutment against the valve support 42 and a shoulder 17 of the non-return valve 6.
  • the assembly of the sleeve 8 is fixed to the central body 2, for example by means of a thread, O-rings 45 which can complete this assembly to ensure the tightness of the assembly.
  • FIG. 2A schematically represents the sampling bottle according to the invention at the start of its use cycle.
  • the sampling volume 10 is closed, that is to say that the non-return valve 6 and the piston 20 both obstruct the filling pipe 10.
  • the drain pipe 22 is closed by tap 24.
  • the cap 26 is removed and the end 28 of the drain pipe 22 is connected to a source of vacuum, not shown, and symbolized by a small arrow.
  • the valve 24 is then opened and the partial vacuum is created in the sampling volume 4. Once this operation has been carried out, the valve 24 is again closed to maintain the vacuum sampling volume.
  • the cap 26 is returned to its position and the bottle is ready to be shipped to the sampling site, namely at the bottom of a deep borehole.
  • the bottle is lowered into the borehole 1.
  • the sampling volume 4 is always maintained under vacuum during this descent.
  • the piston 20 is raised, thus releasing the filling line 10.
  • the ambient fluid therefore penetrates through the external ends 12 into the filling line 10, due to the strong hydrostatic pressure prevailing outside the bottle.
  • the non-return valve 6 takes off from its seat 7 and the fluid therefore has access to the sampling volume 4.
  • the determined value of the pressure differences on either side of the non-return valve 6 is of the order of bar, that is to say 105 Pa.
  • All the parts constituting the body of the bottle are preferably made of stainless steel.
  • the sleeve body can take several sizes varying from 250 cm to 1 m, depending on the amount of liquid to be sampled.
  • the motor 18 can be a motor of the "GEHRARDT-OWEN" brand, supplied with 50 volts and actuating, by means of the screw-nut system 19, the central piston 20 with a diameter equal to 6.35 mm.
  • the sleeve 8 has a length of the order of 150 mm. Such a structure makes it possible to obtain a sampling bottle with a total diameter equal to 41 mm.
  • the structure of the bottle, and in particular of the sleeve 8 made up of several parts, allows easy assembly and disassembly of the different parts of the bottle. This facilitates the cleaning of all the parts, and in particular the decontamination of these parts by passing them through acid, in the case where the bottle is used for the sampling of contaminated fluid.
  • the fluid withdrawn can be either water or gas, and above all a mixture of water and gas.

Landscapes

  • 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)

Claims (8)

  1. In Tiefbohrlöchern verwendbare Flasche zur Entnahme von Flüssigkeit, umfassend:
    - einen Zentralkörper (2), in dessen Innerem ein Entnahmevolumen (4) abgegrenzt ist;
    - Einrichtungen zum Auffüllen des genannten Volumens (4) mit Flüssigkeit, wenn die Flasche sich am Ort der Entnahme (1) befindet;
    - Einrichtungen zum Verschließen des Entnahmevolumens (4), wenn die Flasch aufgefüllt ist mit der genannten Flüssigkeit; dabei werden die Fülleinrichtungen und die Verschlußeinrichtungen des Entnahmevolumens (4) im wesentlichen gebildet durch:
    . ein Rückschlagventil (6), angeordnet in dem Füllstutzen (8) in einer Fülleitung (10), die mit der Außenseite verbunden ist über wenigstens ein Außenende (12) und mit dem Entnahmevolumen (4) durch ein Innenende (14), wobei das Rückschlagventil (6) auf einen festgelegten Druckdifferenzwert geeicht ist durch eine Feder (16), um das Füllen zu stoppen, wenn die genannte Druckdifferenz zwischen dem Entnahmevolumen (4) und dem Eingang der Entnahmeleitung (10) den besagten festgelegten Wert erreicht hat:
    . einen Längskolben (20), betätigt durch einen Motor (18), zum Freimachen der Fülleitung (10) vor dem Füllen;
    . einen Entleerungshahn (24) des Entnahmevolumens (4), dadurch gekennzeichnet, daß der Langskolben (20) durch den Motor (18) ebenfalls betätigt wird, um nach dem Füllen die Fülleitung (10) zu verschließen, wobei der Teil der Fülleitung (10), der durch den Kolben (20) verstopft wird, ein lösbares Druckausgleichsventil (46) ist, gleitend angebracht in dem Stutzen (8), um die Druckdifferenz zwischen dem Füllvolumen (4) und dem Eingang der Leitung in Höhe der Außenenden (12) auszugleichen, wobei der Entleerungshahn (24) benützt wird, um Leere herzustellen in dem Entnahmevolumen (4) vor dem Füllen der Flasche.
  2. Flasche nach Anspruch 1, dadurch gekennzeichnet, daß der Füllstutzen (8) eine Reihe lösbarer Filter (44) in der Fülleitung (10) umfaßt, mit abnehmendem Kaliber, um eine Mehrstufen-Filtrierung zu erhalten.
  3. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Außenenden (12) der Fülleitung (10) mit Einlauffiltern (13) ausgestattet sind.
  4. Flasche nach Anspruch 2, dadurch gekennzeichnet, daß die im Innern des Stutzens (8) untergebrachten Filter (44) vom "gesinterten" Typ sind.
  5. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der festgelegte Druckdifferenzwert in der Größenordnung von 1 Bar, also 10⁵ Pa ist.
  6. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Stutzen gebildet wird durch:
    - das Ende (32) eines Stützkörpers (30), in dessen Innerem sich der Motor (18) des Kolbens befindet und in dem sich die Außenenden (12) der Fülleitung (10) befinden;
    - den Stutzenköper (40), in das Ende (32) des Stützkörpers (30) geschraubt und den zentralen Teil der Fülleitung (10) enthaltend, an dessen Ende das Rückschlagventil (6) in einem Ventilsitz (7) zum Anschlag kommt, und in dessen Innerem das lösbare Ventil (46) und die Stufenfilter (44) angebracht sind; und
    - einen Ventilträger (42), auf den Stutzenkörper (40) geschraubt, um den Ventilsitz (7) herum, in dem das Ventil (6) gleitend gelagert ist und auf dem sich die Feder (16) abstützt.
  7. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Entnahmevolumen (4) gebildet wird durch den auf den Stutzenkörper (40) geschraubten zentralen Körper (2) der Flasche.
  8. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hahn (24) sich an einer Entleerungsleitung (22) befindet, die auf der entgegengesetzten Seite zur Fülleitung (10) verbunden ist mit dem Entnahmevolumen (4) und überragt wird durch eine Schutzkappe (26), die vorn an dem Aufbau angebracht ist.
EP91401218A 1990-05-10 1991-05-07 In Tiefbohrlöchern verwendbare Flasche zur Entnahme einer Flüssigkeit Expired - Lifetime EP0456581B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9005813 1990-05-10
FR9005813A FR2661943B1 (fr) 1990-05-10 1990-05-10 Bouteille de prelevement de fluide, utilisable en forages profonds.

Publications (2)

Publication Number Publication Date
EP0456581A1 EP0456581A1 (de) 1991-11-13
EP0456581B1 true EP0456581B1 (de) 1995-03-22

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ID=9396456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401218A Expired - Lifetime EP0456581B1 (de) 1990-05-10 1991-05-07 In Tiefbohrlöchern verwendbare Flasche zur Entnahme einer Flüssigkeit

Country Status (4)

Country Link
US (1) US5139085A (de)
EP (1) EP0456581B1 (de)
DE (1) DE69108287T2 (de)
FR (1) FR2661943B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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WO2023194495A1 (fr) * 2022-04-07 2023-10-12 Agence Nationale Pour La Gestion Des Déchets Radioactifs Dispositif echantillonneur pour le prelevement d'eaux souterraines et procédé de prélèvement associé

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NO172863C (no) * 1991-05-03 1993-09-15 Norsk Hydro As Elektro-hydraulisk bunnhullsproevetakerutstyr
US5738172A (en) * 1996-04-30 1998-04-14 Oceaneering International, Inc. Filter for fluid circuits
US8757268B2 (en) * 2009-05-22 2014-06-24 Bl Sales & Management, Inc. Self centering downhole float valve for vertical and lateral wells
KR101106721B1 (ko) 2009-11-23 2012-01-18 한국지질자원연구원 지하수 연속 채수기 및 이를 이용한 채수방법
AU2010346478B2 (en) * 2010-02-20 2015-09-03 Halliburton Energy Services, Inc. Systems and methods of a clamp for a sample bottle assembly
US9068405B2 (en) 2010-02-20 2015-06-30 Halliburton Energy Services, Inc. Systems and methods of a sample bottle assembly
CN101864954B (zh) * 2010-05-31 2013-01-30 中国海洋石油总公司 一种地层测试多取样装置
WO2018125100A1 (en) * 2016-12-28 2018-07-05 Halliburton Energy Services, Inc. Downhole tool with filtration device
CN109025986B (zh) * 2018-08-15 2021-09-28 中国石油天然气股份有限公司 一种井下流体的取样装置及方法
CN112881081B (zh) * 2021-01-15 2023-01-06 自然资源部第一海洋研究所 一种可测量海底潮流大小的海洋底部水样采样装置
CN116242659B (zh) * 2023-03-16 2023-11-21 河南叁点壹肆检测技术有限公司 一种能够实现对不同深度污水分级采集的设备
US12291940B2 (en) * 2023-08-10 2025-05-06 B.L. Sales & Management, Inc. Float valve apparatus having metal-to-metal seals and method for using same

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FR1492170A (fr) * 1966-06-09 1967-08-18 Auxiliaire Des Producteurs De échantillonneur de fluide, notamment pour puits profonds
US3530933A (en) * 1969-04-02 1970-09-29 Schlumberger Technology Corp Formation-sampling apparatus
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FR2558522B1 (fr) * 1983-12-22 1986-05-02 Schlumberger Prospection Dispositif pour prelever un echantillon representatif du fluide present dans un puits, et procede correspondant
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FR2628143B1 (fr) * 1988-03-03 1990-07-27 Flopetrol Sonde de prelevement d'echantillons fluides, notamment a l'interieur d'un puits de petrole
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US4903765A (en) * 1989-01-06 1990-02-27 Halliburton Company Delayed opening fluid sampler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023194495A1 (fr) * 2022-04-07 2023-10-12 Agence Nationale Pour La Gestion Des Déchets Radioactifs Dispositif echantillonneur pour le prelevement d'eaux souterraines et procédé de prélèvement associé
FR3134400A1 (fr) * 2022-04-07 2023-10-13 Agence Nationale Pour La Gestion Des Déchets Radioactifs Dispositif échantillonneur pour le prélèvement d’eaux souterraines et procédé de prélèvement associé

Also Published As

Publication number Publication date
DE69108287D1 (de) 1995-04-27
EP0456581A1 (de) 1991-11-13
FR2661943B1 (fr) 1992-07-17
DE69108287T2 (de) 1995-11-09
US5139085A (en) 1992-08-18
FR2661943A1 (fr) 1991-11-15

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