EP0484207A1 - Method to promote the production of a fluid in a production zone - Google Patents

Method to promote the production of a fluid in a production zone Download PDF

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Publication number
EP0484207A1
EP0484207A1 EP91402833A EP91402833A EP0484207A1 EP 0484207 A1 EP0484207 A1 EP 0484207A1 EP 91402833 A EP91402833 A EP 91402833A EP 91402833 A EP91402833 A EP 91402833A EP 0484207 A1 EP0484207 A1 EP 0484207A1
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Prior art keywords
tube
production
location
openings
depression
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EP91402833A
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German (de)
French (fr)
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EP0484207B1 (en
Inventor
Claude Gadelle
Jacques Lessi
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well

Definitions

  • the present invention relates to a method for promoting, by creating a depression, the production of effluents from a production zone crossed by at least one deviated well or drain, such as an oil zone.
  • deviated well designates any well of which at least part is substantially horizontal or slightly inclined relative to the horizontal.
  • One of the advantages of deviated wells is to allow better sweeping of the petroleum effluents contained in the formations crossed and therefore to improve recovery.
  • Optimal recovery for a given scanning mechanism, is obtained when the scanning front moves parallel to the deviated drain.
  • the regularity of the sweeping front is sometimes difficult to maintain due to heterogeneities of the reservoir, such as fractures or channels etc., changes in the geometry of the drain or even disturbances related to flows in the drain such as pressure drops .
  • a known method for sweeping a production area is to lower a pumping device there to suck out the effluents when the pressure in the formation becomes insufficient.
  • the deviated well which crosses it is equipped with a casing or casing tube which is perforated in its part which crosses the production zone.
  • a production tube is lowered into the area to be activated.
  • a pump is inserted on the tube to create a vacuum.
  • An example of a pumping device is described for example in the French patent application EN. 08/08/270.
  • the vacuum created by such a tube is maximum near its lower end and, due to the pressure drops, it decreases quickly with the distance so that the suction pressure quickly becomes insufficient to obtain a correct sweeping of the production area.
  • the layer containing the oil is relatively thin. It is bordered on one side by an accumulation of gas or an aquifer. It can still be between an accumulation of gas and an aquifer. Too strong a vacuum at the outlet of the tube has the effect in this case, also to bring the gas or water from the adjacent layers.
  • the method according to the invention makes it possible, by creating a depression, to promote the production of effluents by a production zone crossed by at least one deviated well or drain, into which a tube is lowered, the lower part of which is at least provided with openings.
  • the extent of the depression is selectively varied in at least one location of the tube by a selective modification of the position of the openings where the depression is applied relative to said location and / or the area application openings of this depression.
  • the method includes regulating the vacuum in at least one location of the well by adapting the pressure drop undergone by the effluents produced between this location and said openings.
  • the appropriate pressure drop is obtained at said location, for example by using a tube provided with at least one opening for applying vacuum and by varying the length of the path between said location and an opening of the tube and / or the section of said opening.
  • the tube can also be provided with a plurality of openings distributed over its length and means for varying the section of at least part of the openings, the method comprising in this case the selection of at least at least one of said openings the distance of which at said location and / or the section are chosen to obtain at said location a depression.
  • the method may include the use of a perforated suction tube and / or a perforated casing, the distribution of the perforations and their areas being chosen to obtain a determined depression distribution.
  • the method according to the invention may include the use of a suction means such as a pumping assembly, to increase the vacuum applied to the training.
  • a suction means such as a pumping assembly
  • the method relates to the scanning of a producing area by creating a depression in a formation 1 put into production.
  • the formation is crossed (Fig. 2) by a deviated well or drain 2, the lower part of which is horizontal or at a slight inclination relative to the horizontal.
  • the well is generally provided with a casing or casing tube perforated 3 in its part which crosses the production zone.
  • a production tube 4 is lowered into the zone to be activated.
  • a pump 5 is interposed on the tube so as to create a vacuum.
  • An example of a pumping device is described for example in the French patent application EN. 02/02/270.
  • the vacuum dp created is maximum near the lower end 6 of the tube 4 (Fig. 2) and, due to the pressure losses, it decreases with the distance d (Fig. 2), so that the pressure d Aspiration becomes insufficient to obtain a correct sweep of the production area.
  • a first embodiment of the method consists in moving the lower end of the tube 4 opening into the production area, so that at any location of the drain, a sufficient vacuum is obtained to favor the arrival of oil with a good sweep of the area, without creating other unwanted inflows.
  • play is made on the relative position of the locations of the drain relative to the suction opening.
  • a second embodiment of the method consists in using a tube 7, the part of which passes through the production area is provided with a plurality of openings 8 (FIG. 3) with selective opening.
  • a tube provided with lateral openings which can be masked and unmasked at will by action on valves 9 such as sliding jacket valves as described in published patent application FR 2 626 614.
  • valves 9 such as sliding jacket valves as described in published patent application FR 2 626 614.
  • the openings 8 can be discovered either partially (valve 9A) or entirely (valve 9B).
  • the selective opening of one of the valves has the effect of locally increasing the vacuum (Fig. 4) and of regulating the sweeping in the vicinity of the new opening.
  • the first is the distance separating this location from the suction opening 6,8 and one can choose that of the lateral openings of the tube which is at the suitable distance.
  • the second factor is the suction area and it can be modified by opening one or more of the valves 9 and / or by modifying the number of open valves.
  • a production tube 10 is perforated over a part of its length with a distribution of lateral perforations 11 along the tube.
  • the density of perforations and / or their areas are chosen to obtain a distribution of depressions adapted to the configuration of the well.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Fats And Perfumes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • External Artificial Organs (AREA)

Abstract

A diverted drain (2) drilled in a production zone (1) is equipped for the production of fluids and is provided with a perforated casing (3) and with a production tube (4). A vacuum is applied at various locations by a selective modification of the position of the application points in relation to these locations. The position of the suction ports and/or their area is varied by a selective opening of valves (8) or by a displacement of the entrance of the production tube (4). A tube and/or a casing having perforations such that a specific vacuum distribution is obtained can be used. The vacuum can be generated by a pumping assembly (5) inserted on the production drain. <??>The invention is used for the activation or stimulation of oil-bearing zones. <IMAGE>

Description

La présente invention porte sur une méthode pour favoriser par création d'une dépression, la production d'effluents d'une zone de production traversée par au moins un puits ou drain dévié, telle qu'une zone pétrolifère. On désigne par puits dévié tout puits dont une partie au moins est sensiblement horizontale ou peu inclinée par rapport à l'horizontale.The present invention relates to a method for promoting, by creating a depression, the production of effluents from a production zone crossed by at least one deviated well or drain, such as an oil zone. The term deviated well designates any well of which at least part is substantially horizontal or slightly inclined relative to the horizontal.

Un des intérêts des puits déviés est de permettre un meilleur balayage des effluents pétroliers contenus dans les formations traversées et donc d'améliorer la récupération.One of the advantages of deviated wells is to allow better sweeping of the petroleum effluents contained in the formations crossed and therefore to improve recovery.

La récupération optimale, pour un mécanisme de balayage donné, est obtenue quand le front de balayage se déplace parallèlement au drain dévié. La régularité du front de balayage est parfois difficile à conserver en raison d'hétérogénéités du réservoir, telles que des fractures ou chenaux etc, des modifications de la géométrie du drain ou encore de perturbations liées aux écoulements dans le drain telles que des pertes de charge.Optimal recovery, for a given scanning mechanism, is obtained when the scanning front moves parallel to the deviated drain. The regularity of the sweeping front is sometimes difficult to maintain due to heterogeneities of the reservoir, such as fractures or channels etc., changes in the geometry of the drain or even disturbances related to flows in the drain such as pressure drops .

Une méthode connue pour balayer une zone de production est d'y descendre un dispositif de pompage pour aspirer au dehors les effluents quand la pression dans la formation devient insuffisante. Le puits dévié qui la traverse est équipé d'un tube de cuvelage ou casing qui est perforé dans sa partie qui traverse la zone de production. Un tube de production est descendu jusque dans la zone à activer. Quand c'est nécessaire, une pompe est intercalée sur le tube de manière à créer une dépression. Un exemple de dispositif de pompage est décrit par exemple dans la demande de brevet français EN. 90/08.270. La dépression créée par un tel tube est maximale au voisinage de son extrémité inférieure et, du fait des pertes de charge, elle diminue rapidement avec l'éloignement si bien que la pression d'aspiration devient vite insuffisante pour obtenir un balayage correct de la zone de production.A known method for sweeping a production area is to lower a pumping device there to suck out the effluents when the pressure in the formation becomes insufficient. The deviated well which crosses it is equipped with a casing or casing tube which is perforated in its part which crosses the production zone. A production tube is lowered into the area to be activated. When necessary, a pump is inserted on the tube to create a vacuum. An example of a pumping device is described for example in the French patent application EN. 08/08/270. The vacuum created by such a tube is maximum near its lower end and, due to the pressure drops, it decreases quickly with the distance so that the suction pressure quickly becomes insufficient to obtain a correct sweeping of the production area.

Il est souvent difficile dans la pratique d'augmenter la dépression à la sortie inférieure du tube de manière à obtenir une dépression suffisante en tous points de la zone à activer, soit pour des raisons liés à l'installation de pompage proprement dite soit du fait de la structure de la zone activée. Dans certains bassins en effet, la couche contenant l'huile est relativement mince. Elle est bordée d'un côté d'une accumulation de gaz ou d'une couche aquifère. Elle peut encore se trouver entre une accumulation de gaz et une couche aquifère. Une dépression trop forte au débouché du tube a pour effet dans ce cas, de faire venir aussi le gaz ou l'eau des couches adjacentes.It is often difficult in practice to increase the vacuum at the lower outlet of the tube so as to obtain a sufficient vacuum at all points of the zone to be activated, either for reasons related to the pumping installation itself or because of the structure of the activated zone. In some basins, in fact, the layer containing the oil is relatively thin. It is bordered on one side by an accumulation of gas or an aquifer. It can still be between an accumulation of gas and an aquifer. Too strong a vacuum at the outlet of the tube has the effect in this case, also to bring the gas or water from the adjacent layers.

La méthode selon l'invention permet, par création d'une dépression, de favoriser la production d'effluents par une zone de production traversée par au moins un puits ou drain dévié, dans lequel est descendu un tube dont la partie inférieure au moins est pourvue d'ouvertures.The method according to the invention makes it possible, by creating a depression, to promote the production of effluents by a production zone crossed by at least one deviated well or drain, into which a tube is lowered, the lower part of which is at least provided with openings.

Elle est caractérisée en ce que l'on fait varier sélectivement l'importance de la dépression en au moins un emplacement du tube par une modification sélective de la position des ouvertures où la dépression est appliquée par rapport audit emplacement et/ou de l'aire des ouvertures d'application de cette dépression.It is characterized in that the extent of the depression is selectively varied in at least one location of the tube by a selective modification of the position of the openings where the depression is applied relative to said location and / or the area application openings of this depression.

Suivant un mode de réalisation, la méthode comporte la régulation de la dépression en au moins un emplacement du puits en adaptant la perte de charge subie par les effluents produits entre cet emplacement et lesdites ouvertures.According to one embodiment, the method includes regulating the vacuum in at least one location of the well by adapting the pressure drop undergone by the effluents produced between this location and said openings.

On obtient la perte de charge appropriée audit emplacement, par exemple en utilisant un tube pourvu d'au moins une ouverture pour l'application de la dépression et en faisant varier la longueur du trajet entre ledit emplacement et une ouverture du tube et/ou la section de ladite ouverture.The appropriate pressure drop is obtained at said location, for example by using a tube provided with at least one opening for applying vacuum and by varying the length of the path between said location and an opening of the tube and / or the section of said opening.

A cet effet, le tube peut encore être pourvu d'une pluralité d'ouvertures réparties sur sa longueur et de moyens pour faire varier la section d'une partie au moins des ouvertures, la méthode comportant dans ce cas, la sélection d'au moins une desdites ouvertures dont la distance audit emplacement et/ou la section sont choisies pour obtenir audit emplacement une dépression.To this end, the tube can also be provided with a plurality of openings distributed over its length and means for varying the section of at least part of the openings, the method comprising in this case the selection of at least at least one of said openings the distance of which at said location and / or the section are chosen to obtain at said location a depression.

Suivant un autre exemple de mise en oeuvre la méthode peut comporter l'utilisation d'un tube d'aspiration perforé et/ou d'un casing perforé, la répartition des perforations et leurs aires étant choisies pour obtenir une distribution de dépression déterminée.According to another example of implementation, the method may include the use of a perforated suction tube and / or a perforated casing, the distribution of the perforations and their areas being chosen to obtain a determined depression distribution.

Suivant un mode de mise en oeuvre, la méthode selon l'invention peut comporter l'utilisation d'un moyen d'aspiration tel qu'un ensemble de pompage, pour augmenter la dépression appliquée à la formation.According to one embodiment, the method according to the invention may include the use of a suction means such as a pumping assembly, to increase the vacuum applied to the training.

Avec le dosage de la dépression obtenu par déplacement des points d'aspiration relativement aux différents emplacements le long du drain ou par variation des aires d'aspiration, on arrive à adapter l'activation en fonction de la configuration de la zone de production et/ou du drain qui le traverse.With the vacuum dosage obtained by moving the suction points relative to the different locations along the drain or by varying the suction areas, we can adapt the activation according to the configuration of the production area and / or the drain running through it.

D'autres caractéristiques et avantages de la méthode selon l'invention apparaîtront mieux à la lecture de la description ci-après de modes de mise en oeuvre décrits à titre d'exemples non limitatifs, en se référant aux dessins annexés où :

  • la Fig.1 montre schématiquement une partie d'un drain de production où est installé un équipement d'activation par pompage,
  • la Fig.2 montre la variation de la dépression de pompage le long du drain quand le tube de pompage comporte une seule ouverture d'extrémité;
  • la Fig.3 montre un premier mode de mise en oeuvre de la méthode où l'on utilise un moyen de régulation de l'aspiration permettant un meilleur balayage de la zone de production;
  • la Fig.4 montre un exemple de la variation mieux régulée obtenue avec le moyen de régulation de la Fig.3; et
  • la Fig.5 montre schématiquement un autre moyen approprié pour obtenir une meilleur balayage d'une zone de production.
Other characteristics and advantages of the method according to the invention will appear better on reading the following description of embodiments described by way of nonlimiting examples, with reference to the accompanying drawings in which:
  • Fig. 1 schematically shows part of a production drain where pumping activation equipment is installed,
  • Fig.2 shows the variation of the pumping depression along the drain when the pumping tube has a single end opening;
  • Fig.3 shows a first mode of implementation of the method where one uses a means of regulation of the aspiration allowing a better sweeping of the production area;
  • Fig.4 shows an example of the better regulated variation obtained with the regulating means of Fig.3; and
  • Fig.5 schematically shows another suitable means for obtaining better scanning of a production area.

La méthode concerne le balayage d'une zone productrice par création d'une dépression dans une formation 1 mise en production. La formation est traversée (Fig.2) par un puits ou drain dévié 2 dont la partie inférieure est horizontale ou à faible inclinaison par rapport à l'horizontale. Le puits est en général pourvu d'un tube de cuvelage ou casing perforé 3 dans sa partie qui traverse la zone de production. Un tube de production 4 est descendu jusque dans la zone à activer. Une pompe 5 est intercalée sur le tube de manière à créer une dépression. Un exemple de dispositif de pompage est décrit par exemple dans la demande de brevet français EN. 90/02.270. La dépression dp créée est maximale au voisinage de l'extrémité inférieure 6 du tube 4 (Fig.2) et, du fait des pertes de charge, elle diminue avec l'éloignement d (Fig.2), si bien que la pression d'aspiration devient insuffisante pour obtenir un balayage correct de la zone de production.The method relates to the scanning of a producing area by creating a depression in a formation 1 put into production. The formation is crossed (Fig. 2) by a deviated well or drain 2, the lower part of which is horizontal or at a slight inclination relative to the horizontal. The well is generally provided with a casing or casing tube perforated 3 in its part which crosses the production zone. A production tube 4 is lowered into the zone to be activated. A pump 5 is interposed on the tube so as to create a vacuum. An example of a pumping device is described for example in the French patent application EN. 02/02/270. The vacuum dp created is maximum near the lower end 6 of the tube 4 (Fig. 2) and, due to the pressure losses, it decreases with the distance d (Fig. 2), so that the pressure d Aspiration becomes insufficient to obtain a correct sweep of the production area.

Comme on l'a vu, il est souvent difficile dans la pratique d'augmenter la dépression à la sortie inférieure du tube de manière à obtenir une dépression suffisante en tous points de la zone à activer, soit pour des raisons liés à l'installation de pompage quand on doit activer le puits en production, soit du fait de la structure de la zone activée où la couche contenant l'huile est relativement mince et bordée d'un côté d'une accumulation de gaz ou d'une couche aquifère, soit entre elles.As we have seen, it is often difficult in practice to increase the vacuum at the lower outlet of the tube so as to obtain a sufficient vacuum in all points of the zone to be activated, that is to say for reasons related to the installation. pumping when the well in production must be activated, either because of the structure of the activated zone where the layer containing the oil is relatively thin and bordered on one side by an accumulation of gas or an aquifer layer, either between them.

Un premier mode de mise en oeuvre de la méthode consiste à déplacer l'extrémité inférieure du tube 4 débouchant dans la zone de production, de manière qu'en tout emplacement du drain, on obtienne une dépression suffisante pour favoriser les venues d'huile avec un bon balayage de la zone, sans pour autant créer d'autres afflux indésirables. Avec ce mode de réalisation, on joue sur la position relative des emplacements du drain par rapport à l'ouverture d'aspiration.A first embodiment of the method consists in moving the lower end of the tube 4 opening into the production area, so that at any location of the drain, a sufficient vacuum is obtained to favor the arrival of oil with a good sweep of the area, without creating other unwanted inflows. With this embodiment, play is made on the relative position of the locations of the drain relative to the suction opening.

Un deuxième mode de mise en oeuvre de la méthode consiste à utiliser un tube 7 dont la partie traversant la zone de production est pourvue d'une pluralité d'ouvertures 8 (Fig.3) à ouverture sélective. On peut utiliser par exemple un tube pourvu d'ouvertures latérales qui peuvent être masquées et démasquées à volonté par action sur des vannes 9 telles que des vannes à chemise coulissante comme il est décrit dans la demande de brevet publiée FR 2 626 614. Par un coulissement de la chemise, on peut découvrir les ouvertures 8 soit partiellement (vanne 9A) soit en totalité (vanne 9B). Avec un tube à ouvertures multiples, l'ouverture sélective d'une des vannes a pour effet d'accroître localement la dépression (Fig.4) et de régulariser le balayage au voisinage de la nouvelle ouverture.A second embodiment of the method consists in using a tube 7, the part of which passes through the production area is provided with a plurality of openings 8 (FIG. 3) with selective opening. One can use for example a tube provided with lateral openings which can be masked and unmasked at will by action on valves 9 such as sliding jacket valves as described in published patent application FR 2 626 614. By a sliding of the liner, the openings 8 can be discovered either partially (valve 9A) or entirely (valve 9B). With a tube with multiple openings, the selective opening of one of the valves has the effect of locally increasing the vacuum (Fig. 4) and of regulating the sweeping in the vicinity of the new opening.

Pour obtenir en un emplacement du drain une certaine dépression, on peut jouer sur deux facteurs influant sur la perte de charge obtenue. Le premier est la distance séparant cet emplacement de l'ouverture d'aspiration 6,8 et l'on peut choisir celle des ouvertures latérales du tube qui est à la distance convenable. Le deuxième facteur est l'aire d'aspiration et l'on peut la modifier en ouvrant plus ou moins une des vannes 9 et/ou en modifiant le nombre de vannes ouvertes.To obtain a certain depression in a location of the drain, one can play on two factors influencing the pressure drop obtained. The first is the distance separating this location from the suction opening 6,8 and one can choose that of the lateral openings of the tube which is at the suitable distance. The second factor is the suction area and it can be modified by opening one or more of the valves 9 and / or by modifying the number of open valves.

On peut aussi combiner les deux modes de réalisation en déplaçant plus ou moins le long du drain un tube pourvu d'ouvertures commandées.One can also combine the two embodiments by moving more or less along the drain a tube provided with controlled openings.

Suivant un autre mode de réalisation (Fig. 5), on utilise un tube de production 10 perforé sur une partie de sa longueur avec une distribution de perforations latérales 11 variable le long du tube. La densité de perforations et/ou leurs aires sont choisis pour obtenir une distribution de dépressions adaptée à la configuration du puits.According to another embodiment (FIG. 5), a production tube 10 is perforated over a part of its length with a distribution of lateral perforations 11 along the tube. The density of perforations and / or their areas are chosen to obtain a distribution of depressions adapted to the configuration of the well.

On ne sortirait pas du cadre de l'invention en utilisant un cuvelage ou casing 3 pourvu de perforations latérales avec une distribution de perforations 12 variable le long du casing, de manière à obtenir une distribution appropriée de dépressions le long du drain.It would not go beyond the scope of the invention to use a casing or casing 3 provided with lateral perforations with a variable distribution of perforations 12 along the casing, so as to obtain an appropriate distribution of depressions along the drain.

Claims (7)

1) Méthode pour favoriser par création d'une dépression, la production d'effluents d'une zone de production traversée par au moins un puits ou drain dévié, dans lequel est descendu un tube (4) dont la partie inférieure au moins est pourvue d'ouvertures, caractérisée en ce que l'on fait varier sélectivement l'importance de la dépression en au moins un emplacement du tube par une modification sélective de la position des ouvertures (6, 8) où la dépression est appliquée par rapport audit emplacement et/ou de l'aire des ouvertures d'application de cette dépression. 1) Method for promoting, by creating a depression, the production of effluents from a production zone crossed by at least one deviated well or drain, into which a tube (4) is lowered, at least the lower part of which is provided of openings, characterized in that the magnitude of the depression is selectively varied in at least one location of the tube by a selective modification of the position of the openings (6, 8) where the depression is applied relative to said location and / or the area of the application openings for this depression. 2) Méthode selon la revendication 1, caractérisée en ce que l'on crée la dépression en au moins un emplacement du puits (2) en adaptant la perte de charge subie par les effluents produits par la formation entre cet emplacement et lesdites ouvertures. 2) Method according to claim 1, characterized in that the depression is created in at least one location of the well (2) by adapting the pressure drop undergone by the effluents produced by the formation between this location and said openings. 3) Méthode selon la revendication 2, caractérisée en ce que l'on obtient la perte de charge appropriée audit emplacement, en utilisant un tube (5) pourvu d'au moins une ouverture (6) pour l'application de la dépression et en faisant varier la longueur du trajet entre ledit emplacement et une ouverture du tube et/ou la section de ladite ouverture. 3) Method according to claim 2, characterized in that one obtains the appropriate pressure drop at said location, using a tube (5) provided with at least one opening (6) for the application of vacuum and varying the length of the path between said location and an opening of the tube and / or the section of said opening. 4) Méthode selon l'une des revendications 1 ou 2, caractérisée en ce que le tube est pourvu d'une pluralité d'ouvertures (6, 8) réparties sur sa longueur et de moyens (9) pour faire varier la section d'une partie au moins des ouvertures, la méthode comportant la sélection d'au moins une desdites ouvertures dont la distance audit emplacement et/ou la section sont choisies pour obtenir audit emplacement une dépression déterminée. 4) Method according to one of claims 1 or 2, characterized in that the tube is provided with a plurality of openings (6, 8) distributed over its length and means (9) for varying the section of at least part of the openings, the method comprising the selection of at least one of said openings, the distance to said location and / or the section are chosen to obtain at said location a determined depression. 5) Méthode selon l'une des revendications précédentes, caractérisée en ce que l'on utilise un tube (4) perforé sur une partie de sa longueur, la répartition des perforations et/ou leurs aires étant choisie pour obtenir une distribution de dépressions déterminée. 5) Method according to one of the preceding claims, characterized in that a tube (4) perforated over a part of its length is used, the distribution of the perforations and / or their areas being chosen to obtain a determined distribution of depressions . 6) Méthode selon l'une des revendications précédentes, caractérisée en ce que l'on équipe le drain d'un cuvelage (3) pourvu de perforations, la répartition des perforations (12) et/ou leurs aires étant choisie pour obtenir une distribution de dépressions déterminée. 6) Method according to one of the preceding claims, characterized in that one equips the drain with a casing (3) provided of perforations, the distribution of the perforations (12) and / or their areas being chosen to obtain a determined distribution of depressions. 7) Méthode selon l'une des revendications précédentes, caractérisé en ce qu'elle comporte l'utilisation d'un moyen d'aspiration tel qu'un ensemble de pompage (5), pour augmenter la dépression appliquée à la formation. 7) Method according to one of the preceding claims, characterized in that it comprises the use of a suction means such as a pumping assembly (5), to increase the vacuum applied to the training.
EP91402833A 1990-11-02 1991-10-23 Method to promote the production of a fluid in a production zone Expired - Lifetime EP0484207B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013691 1990-11-02
FR9013691A FR2668795B1 (en) 1990-11-02 1990-11-02 METHOD FOR PROMOTING THE PRODUCTION OF EFFLUENTS FROM A PRODUCTION AREA.

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EP0484207A1 true EP0484207A1 (en) 1992-05-06
EP0484207B1 EP0484207B1 (en) 1995-01-11

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EP (1) EP0484207B1 (en)
AU (2) AU8697091A (en)
BR (1) BR9104767A (en)
CA (1) CA2054780C (en)
DK (1) DK0484207T3 (en)
FR (1) FR2668795B1 (en)
NO (1) NO302839B1 (en)

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US7673678B2 (en) * 2004-12-21 2010-03-09 Schlumberger Technology Corporation Flow control device with a permeable membrane
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US7857050B2 (en) * 2006-05-26 2010-12-28 Schlumberger Technology Corporation Flow control using a tortuous path
US8025072B2 (en) * 2006-12-21 2011-09-27 Schlumberger Technology Corporation Developing a flow control system for a well
WO2008092241A1 (en) 2007-01-29 2008-08-07 Noetic Engineering Inc. A method for providing a preferential specific injection distribution from a horizontal injection well
US7789145B2 (en) * 2007-06-20 2010-09-07 Schlumberger Technology Corporation Inflow control device

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US5829529A (en) * 1995-11-21 1998-11-03 Institut Francais De Petrole Method and device for producing by pumping in a horizontal drain hole

Also Published As

Publication number Publication date
NO914279D0 (en) 1991-10-31
DK0484207T3 (en) 1995-05-22
CA2054780C (en) 2003-02-04
AU8697091A (en) 1992-05-07
US5269376A (en) 1993-12-14
EP0484207B1 (en) 1995-01-11
FR2668795B1 (en) 1993-01-08
BR9104767A (en) 1992-06-23
CA2054780A1 (en) 1992-05-03
AU687988B2 (en) 1998-03-05
FR2668795A1 (en) 1992-05-07
AU1646195A (en) 1995-06-22
NO302839B1 (en) 1998-04-27
NO914279L (en) 1992-05-04

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