EP0833037A1 - Method for leaching out a cavity having a plurality of under-cavities in a thin layer of salt - Google Patents
Method for leaching out a cavity having a plurality of under-cavities in a thin layer of salt Download PDFInfo
- Publication number
- EP0833037A1 EP0833037A1 EP97402072A EP97402072A EP0833037A1 EP 0833037 A1 EP0833037 A1 EP 0833037A1 EP 97402072 A EP97402072 A EP 97402072A EP 97402072 A EP97402072 A EP 97402072A EP 0833037 A1 EP0833037 A1 EP 0833037A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sub
- salt
- cavity
- cavities
- layer
- 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.)
- Granted
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002386 leaching Methods 0.000 title 1
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 239000012267 brine Substances 0.000 claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 20
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000004090 dissolution Methods 0.000 claims abstract description 16
- 239000003566 sealing material Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000243 solution Substances 0.000 description 9
- 239000004459 forage Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
Definitions
- the subject of the invention is a method for digging, by dissolution, a cavity in a ground comprising at least one layer containing in most salt to dissolve.
- the invention aims more particularly to obtain, after digging, an underground cavity allowing the storage of a fluid and especially natural gas in a layer of stratified salt whose thickness is typically of the order of a few tens of meters, and more particularly between 30 meters and 100 meters.
- Salt can in particular be constituted by sodium chloride (NaCl) or chloride potassium (KCl), without this being restrictive.
- the object of the invention is in particular to propose a solution whose cost related to the volume of the cavity will be low.
- the invention aims to improve the shape of the cavity obtained to adapt it to the shape of the salt layer and thus increase its volume.
- the cavity to be submitted during its operation gas storage it is necessary to control the spread of dissolution in order to obtain a final cavity having a shape mechanically stable.
- the cavity obtained must provide a satisfactory seal against the external environment.
- Document US-A-3,510,167 discloses a process to improve the dissolution rate of a salt layer consisting of pass the solvent beforehand in another layer of salt in order to increase its density.
- this method is far from the invention. Indeed, this process does not control the shape of the cavity obtained.
- the present invention aims, for its part, at get a single cavity.
- the final cavity will be produced from a succession of sub-cavities whose size, and in particular the height, can be controlled individually.
- the shape of the cavity can thus be better adapted to the shape of the salt layer. Variations in the height of the cavity may especially be better controlled. This can be achieved without reaching the layer limits, mechanical stability and tightness of the cavity can be obtained by keeping a thickness of salt or brine all around.
- the invention proposes that connect the last sub-cavity to the extraction duct, and inject the solvent successively in each of the sub-cavities.
- This solution is simple and allows the salt to be dissolved substantially only in a sub-cavity at a time. Indeed, although the brine passes in all the sub-cavities separating the cavity into which the solvent is injected from the last sub-cavity, in practice due to its saturation in salt, the dissolution is not essentially produced only in the sub-cavity where the solvent is injected.
- the invention also provides different solutions for making canals.
- the isolated channels of the salt are produced by having casing sections in the borehole tight against the solvent and guiding the brine in these sections of casing.
- This solution requires a longer implementation, but does not does not require a stable layer vis-à-vis the circulation of the brine (absence of dissolution, moderate erosion, ).
- the seal between the cavity and the adjacent land can be obtained by retaining a thickness of brine between the cavity and the adjacent terrain.
- these channels isolated from the layer containing the salt to be dissolved are made by drilling in an adjacent ground to said salt layer and containing little or no salt soluble by the solvent. This solution is quick to implement and requires few resources materials.
- Figure 1 is illustrated a terrain comprising a layer 1 with a majority of salt. This layer is between two other 2, 4 mineral layers contained in the soil containing little or no salt.
- a borehole 8 was made using drilling means (not represented) considered to be known.
- This drill hole includes a substantially vertical section 8a extending from the ground level 6, up to the salt layer 1, an elongated substantially horizontal section 8b extending in the salt layer 1 to an end 8d and an angled section 8c connecting the vertical sections 8a and horizontal 8b.
- an elongated casing 14 internally having a channel 24 is introduced into the borehole 8 and in particular in its horizontal section 8b.
- a sealing material 16, comprising here cement is placed by injection between the casing 14 and the borehole 8. This material 16 seals between the casing 14 and the salt layer 1.
- a cutting device 10 is then introduced into the casing 14.
- a device is notably marketed under the reference MILL MASTER and the SERVCO brand (registered trademark).
- the cutting device is connected to the surface 6 by a drill rod 12 allowing in particular the positioning of the device 10, its guidance along the casing and its energy and fluid supply.
- the apparatus 10 is capable of eliminating from place to place, here by abrasion in specific areas 20b, 20c the casing 14 as well as the thickness of sealing material 16, up to come into contact with the salt layer 1.
- This device travels along inside the casing from one specific area to another inside the casing 14 as indicated by arrow 18.
- the sealing material could alternatively be abraded using a device sold under the SERVCO brand (registered trademark) and the Rock Type reference Undereamer.
- the sub-cavities 20a, 20b, 20c, 20d, 20e, 20f are linked in pairs between a first sub-cavity 20a and a last sub-cavity 20f by channels 24a, 24b, 24c, 24d, 24e arranged inside casing sections 14a, 14b, 14c, 14d, 14e remaining after abrasion of the casing 14 in the different determined zones.
- a 24f channel arranged at the interior of the casing 14 connects the cavity 20f to the surface of the ground 6.
- a tube 22 is introduced concentrically into the channel 24 of the casing, advanced into the sub-cavity 20a by crossing each of the sub-cavities 20f, 20e, 20d, 20c, 20b and passing through each of the channels 24f, 24e, 24d, 24c, 24b, 24a.
- This tube 22 has a notably outer diameter smaller than the inner diameter of the casing 14 in order to allow a fluid circulation between the tube 22 and the casing 14 in the channels 24a, 24b, 24c, 24d, 24e, 24f.
- the tube 22 has an orifice 22a forming an injection point and intended to allow the injection of a solvent of the salt, here water, in the different sub-cavities 20a, 20b, 20c, 20d, 20e, 20f.
- a solvent of the salt here water
- an injection pump 28 operates pressure the water injected by the tube 22 forming an injection conduit.
- the water injected by the injection point 22a into the last sub-cavity 20a digs the salt layer 1 by dissolving the salt in this sub-cavity 20a.
- Brine formed by dissolving salt in water circulates in a space of communication formed by channels 24a, 24b, 24c, 24d, 24e and the sub-cavities 20b, 20c, 20d, 20th, 20f.
- This pressurized brine is extracted from the sub-cavity 20f via channel 24f forming extraction channel.
- the communication space constitutes an open circuit of circulation of water in the form of brine. Between two sub-cavities, the water is guided in a channel which isolates it from the salt layer 1, the casing and the sealing material being waterproof against water.
- the dissolution takes place essentially in the sub-cavity 20a where the water is injected.
- FIG. 7 several sub-cavities 20a, 20b, 20c have been dug by dissolution.
- the dissolution of each of the sub-cavities is stopped before reach the mineral layer 2 located above the salt layer 1, so sealing.
- the length of channels 24a, 24b, 24c, 24d, 24e and blanks of cavities 20a, 20b, 20c, 20d, 20e, 20f illustrated in Figure 4 has been chosen to allow communication between the different sub-cavities at the end of the dissolution.
- variations in dimensions and particularly of height between the final cavity formed by the union of all the sub-cavities and the salt layer will be relatively weak.
- the length of the channels is about 50 meters
- the length of the blanks of cavities about 100 meters for a thick layer of salt approximately 100 meters.
- the borehole 8 may have a diameter on the order of a few centimeters, and advantageously around 25 centimeters.
- the blanks of sub-cavities 120a, 120b, 120c, 120d and channels 124a, 124b, 124c, 124d are made directly during the operation drilling.
- the borehole 108 and more precisely the section generally horizontal 108b, includes a succession of sections made in the salt layer 101 (which form the blanks of sub-cavities 120a, 120b, 120c, 120d) and of sections made in the mineral layer 104 located under the salt layer 101 (which form connecting channels 124a, 124b, 124c, 124d waterproof against water, since the mineral layer 104 is assumed not or only slightly soluble in the solvent).
- the digging of the various sub-cavities is carried out in a way comparable to the variant described with reference to FIGS. 1 to 7.
- the tube 122 has been advanced into the first sub-cavity 120a.
- the solvent is injected by the injection point 122a into the cavity 120a, dissolves the salt, then passes successively through channels 124a, 124b, 124c, 124d and the blanks of sub-cavities 120b, 120c, 120d, 120e.
- the brine formed by dissolving the salt is extracted from the cavity 120e by the extraction channel 124f.
- the last sub-cavity 120e is being digging.
- the channels 124a, 124b, 124c, 124d play a role similar to that of channels 24a, 24b, 24c, 24d, 24e of Figures 4 to 7 by isolating the water from the salt layer.
- the invention is in no way limited to the embodiments described above.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treating Waste Gases (AREA)
- Geophysics And Detection Of Objects (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
L'invention a pour objet un procédé pour creuser, par dissolution, une cavité dans un terrain comprenant au moins une couche contenant en majorité du sel à dissoudre.The subject of the invention is a method for digging, by dissolution, a cavity in a ground comprising at least one layer containing in most salt to dissolve.
L'invention vise plus particulièrement à obtenir, après creusement, une cavité souterraine permettant le stockage d'un fluide et notamment de gaz naturel dans une couche de sel stratifié dont l'épaisseur est typiquement de l'ordre de quelques dizaines de mètres, et plus particulièrement comprise entre 30 mètres et 100 mètres. Le sel pourra notamment être constitué par du chlorure de sodium (NaCl) ou du chlorure de potassium (KCl), sans que ceci soit restrictif.The invention aims more particularly to obtain, after digging, an underground cavity allowing the storage of a fluid and especially natural gas in a layer of stratified salt whose thickness is typically of the order of a few tens of meters, and more particularly between 30 meters and 100 meters. Salt can in particular be constituted by sodium chloride (NaCl) or chloride potassium (KCl), without this being restrictive.
Le but de l'invention est en particulier de proposer une solution dont le coût rapporté au volume de la cavité sera faible. Pour ce faire, l'invention tend à améliorer la forme de la cavité obtenue pour l'adapter à la forme de la couche de sel et ainsi augmenter son volume.The object of the invention is in particular to propose a solution whose cost related to the volume of the cavity will be low. To do this, the invention aims to improve the shape of the cavity obtained to adapt it to the shape of the salt layer and thus increase its volume.
Toutefois, la cavité devant être soumise pendant son exploitation au stockage du gaz, il est nécessaire de maítriser la propagation de la dissolution afin d'obtenir une cavité finale présentant une forme mécaniquement stable. De plus, la cavité obtenue devra assurer une étanchéité satisfaisante vis-à-vis du milieu extérieur.However, the cavity to be submitted during its operation gas storage, it is necessary to control the spread of dissolution in order to obtain a final cavity having a shape mechanically stable. In addition, the cavity obtained must provide a satisfactory seal against the external environment.
Certes il est décrit dans US-A-5246273 et WO-A-9510689 un procédé comprenant les étapes suivantes :
- creuser au moins un trou de forage comprenant un tronçon sensiblement horizontal disposé au moins en partie dans la couche de sel,
- ménager dans le(s) trou(s) de forage un conduit d'injection, un conduit d'extraction et une ébauche d'espace de communication mettant en liaison les conduits d'injection et d'extraction,
- injecter un solvant du sel, dans l'espace de communication, par une extrémité du conduit d'injection formant point d'injection,
- extraire, par le conduit d'extraction, la saumure formée par la dissolution du sel, au contact du solvant.
- dig at least one borehole comprising a substantially horizontal section disposed at least partially in the layer of salt,
- provide an injection pipe, an extraction pipe and a draft communication space in the drilling hole (s) connecting the injection and extraction pipes,
- inject a salt solvent, into the communication space, through one end of the injection pipe forming an injection point,
- extract, through the extraction duct, the brine formed by the dissolution of the salt, in contact with the solvent.
Toutefois, le procédé décrit dans WO-A-9510689 est quelque peu complexe, puisqu'il nécessite de prévoir différents orifices d'injection dont le dimensionnement doit être réalisé précisément à partir de l'évaluation de différents paramètres. De plus, cette solution pose un problème de fiabilité - tenue dans le temps -, puisque la taille de certains au moins des orifices risque d'augmenter par usure au contact du solvant et de se réduire pour d'autres du fait de la présence d'éléments insolubles dans la couche de sel.However, the process described in WO-A-9510689 is somewhat complex, since it requires the provision of different injection orifices, the sizing must be carried out precisely from the evaluation of different parameters. In addition, this solution poses a reliability problem - held over time -, since the size of at least some of the orifices risk of increasing by wear on contact with the solvent and of reducing for others due to the presence of insoluble elements in the salt layer.
Le procédé décrit dans US-A-5 246 273 nécessite un appareillage sophistiqué pour contrôler l'injection du solvant dans un plan sensiblement horizontal. De plus, la solution présentée dans ce document est peu adaptée à des cavités de plusieurs dizaines de mètres d'épaisseur et de plus de cent mètres de long. Enfin, la cavité obtenue ne garantit pas une stabilité mécanique et une étanchéité satisfaisantes vis-à-vis du milieu extérieur.The process described in US-A-5 246 273 requires an apparatus sophisticated to control the injection of the solvent in a plane substantially horizontal. In addition, the solution presented in this document is not very suitable to cavities several tens of meters thick and more than a hundred meters long. Finally, the cavity obtained does not guarantee stability mechanical and a satisfactory seal vis-à-vis the external environment.
Le document US-A-3 510 167 divulgue quant à lui un procédé pour améliorer la vitesse de dissolution d'une couche de sel consistant à faire passer le solvant au préalable dans une autre couche de sel afin d'augmenter sa densité.Document US-A-3,510,167 discloses a process to improve the dissolution rate of a salt layer consisting of pass the solvent beforehand in another layer of salt in order to increase its density.
Toutefois, ce procédé est éloigné de l'invention. En effet, ce procédé ne permet pas de contrôler la forme de la cavité obtenue. De plus, on obtient une pluralité de cavités distinctes, qui plus est celles-ci appartiennent à des couches de sel distinctes. La présente invention vise, quant à elle, à obtenir une unique cavité.However, this method is far from the invention. Indeed, this process does not control the shape of the cavity obtained. In addition, we obtains a plurality of distinct cavities, moreover these belong to separate layers of salt. The present invention aims, for its part, at get a single cavity.
Pour résoudre les différents problèmes précités, l'invention propose que l'on réalise :
- une pluralité d'ébauches de sous-cavités dans la couche de sel, et
- une succession de canaux isolés de ladite couche à dissoudre contenant du sel, les canaux reliant de manière fluide les sous-cavités deux à deux pour former un circuit ouvert de circulation du solvant, s'étendant entre une première et une dernière sous-cavités, les ébauches de sous-cavités et les canaux définissant ladite ébauche d'espace de communication.
- a plurality of sub-cavity blanks in the salt layer, and
- a succession of channels isolated from said layer to be dissolved containing salt, the channels fluidly connecting the sub-cavities two by two to form an open circuit for circulation of the solvent, extending between a first and a last sub-cavity, the blanks of sub-cavities and the channels defining said blank of communication space.
La cavité finale sera réalisée à partir d'une succession de sous-cavités dont la taille, et en particulier la hauteur, pourra être contrôlée individuellement. La forme de la cavité pourra ainsi être mieux adaptée à la forme de la couche de sel. Les variations de hauteur de la cavité pourront en particulier être mieux maítrisées. Ceci pouvant être obtenu sans atteindre les limites de la couche, la stabilité mécanique et l'étanchéité de la cavité pourront être obtenues en conservant une épaisseur de sel ou de saumure tout autour.The final cavity will be produced from a succession of sub-cavities whose size, and in particular the height, can be controlled individually. The shape of the cavity can thus be better adapted to the shape of the salt layer. Variations in the height of the cavity may especially be better controlled. This can be achieved without reaching the layer limits, mechanical stability and tightness of the cavity can be obtained by keeping a thickness of salt or brine all around.
Le terme hauteur devra être compris dans la suite de la description au sens de la hauteur d'élévation, suivant la verticale du lieu.The term height should be understood in the rest of the description in the sense of the elevation height, along the vertical of the place.
Selon une caractéristique avantageuse, l'invention propose qu'on relie la dernière sous-cavité au conduit d'extraction, et qu'on injecte le solvant successivement dans chacune des sous-cavités. Cette solution est simple et permet de ne dissoudre le sel sensiblement que dans une sous-cavité à la fois. En effet, bien que la saumure passe dans toutes les sous-cavités séparant la cavité dans laquelle le solvant est injecté de la dernière sous-cavité, en pratique du fait de sa saturation en sel, la dissolution ne se produit essentiellement que dans la sous-cavité où le solvant est injecté.According to an advantageous characteristic, the invention proposes that connect the last sub-cavity to the extraction duct, and inject the solvent successively in each of the sub-cavities. This solution is simple and allows the salt to be dissolved substantially only in a sub-cavity at a time. Indeed, although the brine passes in all the sub-cavities separating the cavity into which the solvent is injected from the last sub-cavity, in practice due to its saturation in salt, the dissolution is not essentially produced only in the sub-cavity where the solvent is injected.
L'invention propose également différentes solutions pour réaliser les canaux. Selon une première variante, on réalise les canaux isolés du sel en disposant, dans le trou de forage, des tronçons de cuvelage ("casing") étanches vis-à-vis du solvant et en guidant la saumure dans ces tronçons de cuvelage. Cette solution requiert une mise en oeuvre plus longue, mais ne nécessite pas de disposer d'une couche stable vis-à-vis de la circulation de la saumure (absence de dissolution, érosion modérée,...). Lorsque le creusement de la cavité par dissolution sera terminé, l'étanchéité entre la cavité et le terrain adjacent pourra être obtenu en conservant une épaisseur de saumure entre la cavité et le terrain adjacent.The invention also provides different solutions for making canals. According to a first variant, the isolated channels of the salt are produced by having casing sections in the borehole tight against the solvent and guiding the brine in these sections of casing. This solution requires a longer implementation, but does not does not require a stable layer vis-à-vis the circulation of the brine (absence of dissolution, moderate erosion, ...). When the digging of the cavity by dissolution will be finished, the seal between the cavity and the adjacent land can be obtained by retaining a thickness of brine between the cavity and the adjacent terrain.
Avantageusement, pour guider la saumure dans les tronçons de cuvelages, on réalise les étapes suivantes :
- creuser le trou de forage,
- introduire un cuvelage dans le trou de forage ainsi obtenu jusque dans la couche de sel,
- disposer un matériau de colmatage (tel que du béton) entre le cuvelage et le trou de forage, et
- éliminer le cuvelage et le matériau de colmatage dans des zones déterminées pour former les ébauches de sous-cavités.
- dig the borehole,
- introduce a casing into the borehole thus obtained as far as the layer of salt,
- placing a sealing material (such as concrete) between the casing and the borehole, and
- remove the casing and the clogging material in determined zones to form the blanks of sub-cavities.
Selon une deuxième variante, ces canaux isolés de la couche contenant le sel à dissoudre sont réalisés par forage dans un terrain adjacent à ladite couche de sel et contenant peu ou pas de sel soluble par le solvant. Cette solution présente une mise en oeuvre rapide et nécessite peu de moyens matériels.According to a second variant, these channels isolated from the layer containing the salt to be dissolved are made by drilling in an adjacent ground to said salt layer and containing little or no salt soluble by the solvent. This solution is quick to implement and requires few resources materials.
L'invention va apparaítre encore plus clairement dans la description qui va suivre, faite en référence aux dessins annexés dans lesquels :
- la figure 1 représente en coupe un terrain comprenant une couche de sel lors d'une première étape du procédé et selon une première variante,
- la figure 2 représente en vue agrandie, la zone repérée II à la figure 1, lors d'une deuxième étape du procédé, selon la première variante,
- la figure 3 représente en vue encore agrandie la zone repérée III à la figure 2,
- la figure 4 représente en coupe le terrain comprenant la couche de sel, lors d'une troisième étape du procédé et selon la première variante,
- la figure 5 représente en vue agrandie, la zone repérée V à la figure 4,
- la figure 6 représente en vue agrandie, la zone repérée V à la figure 4, lors d'une quatrième étape du procédé et selon la première variante,
- la figure 7 représente en vue agrandie, la zone repérée V à la figure 4, lors d'une cinquième étape du procédé et selon la première variante,
- les figures 8 à 10 représentent en coupe un terrain comprenant une couche de sel, lors de trois étapes successives du procédé et selon une deuxième variante.
- FIG. 1 is a section view of a site comprising a layer of salt during a first step of the process and according to a first variant,
- FIG. 2 shows in enlarged view, the zone marked II in FIG. 1, during a second step of the method, according to the first variant,
- FIG. 3 represents a further enlarged view of the zone marked III in FIG. 2,
- FIG. 4 represents in section the ground comprising the salt layer, during a third step of the process and according to the first variant,
- FIG. 5 represents in enlarged view, the zone marked V in FIG. 4,
- FIG. 6 shows in enlarged view, the area marked V in FIG. 4, during a fourth step of the method and according to the first variant,
- FIG. 7 shows in enlarged view, the area marked V in FIG. 4, during a fifth step of the method and according to the first variant,
- Figures 8 to 10 show in section a ground comprising a layer of salt, during three successive stages of the process and according to a second variant.
Pour une meilleure lisibilité des dessins, les proportions respectives des différents éléments n'ont pas été strictement respectées.For better readability of the drawings, the proportions respective elements were not strictly observed.
A la figure 1, est illustré un terrain comprenant une couche 1
présentant une majorité de sel. Cette couche est comprise entre deux autres
couches 2, 4 minérales contenues dans le sol contenant peu ou pas de sel.In Figure 1, is illustrated a terrain comprising a
Un trou de forage 8 a été réalisé à l'aide de moyens de forage (non
représentés) considérés comme connus. Ce trou de forage comprend un
tronçon sensiblement vertical 8a s'étendant depuis le niveau du sol 6, jusqu' à
la couche de sel 1, un tronçon allongé sensiblement horizontal 8b s'étendant
dans la couche de sel 1 jusqu'à une extrémité 8d et un tronçon coudé 8c
reliant les tronçons vertical 8a et horizontal 8b.A
Tel qu'illustré à la figure 2, un cuvelage ("casing") allongé 14
présentant intérieurement un canal 24 est introduit dans le trou de forage 8 et
notamment dans son tronçon horizontal 8b. Un matériau de colmatage 16,
comprenant ici du ciment est disposé par injection entre le cuvelage 14 et le
trou de forage 8. Ce matériau 16 assure l'étanchéité entre le cuvelage 14 et la
couche de sel 1. As illustrated in Figure 2, an
Un appareil de découpe 10 est alors introduit dans le cuvelage 14.
Un tel appareil est notamment commercialisé sous la référence MILL
MASTER et la marque SERVCO (marque déposée). L'appareil de découpe est
relié à la surface 6 par une tige de forage 12 permettant notamment le
positionnement de l'appareil 10, son guidage le long du cuvelage et son
alimentation en énergie et en fluide.A cutting
Tel qu'illustré à la figure 3, l'appareil 10 est apte à éliminer
d'endroits en endroits, ici par abrasion dans des zones déterminées 20b, 20c
le cuvelage 14 ainsi que l'épaisseur de matériau de colmatage 16, jusqu'à
venir au contact de la couche de sel 1. Cet appareil se déplace le long de
l'intérieur du cuvelage d'une zone déterminée à une autre à l'intérieur du
cuvelage 14 tel qu'indiqué par la flèche 18. Le matériau de colmatage
pourrait en alternative être abrasé à l'aide d'un appareil commercialisé sous
la marque SERVCO (marque déposée) et la référence Rock Type
Undereamer.As illustrated in FIG. 3, the
L'élimination du cuvelage 14 et du matériau de colmatage 16 en
différentes zones crée autant d'ébauches de sous-cavités 20b, 20c, 20d, 20e,
20f, toutes ces sous-cavités appartenant la même couche de sel 1, tel
qu'illustré aux figures 4 et 5. Le trou de forage est ensuite prolongé à son
extrémité 8d à l'aide des moyens de forage introduits dans le cuvelage 14
pour former une sous-cavité 20a.The elimination of the
Sur ces figures 4 et 5, les sous-cavités 20a, 20b, 20c, 20d, 20e, 20f
sont reliées deux à deux entre une première sous-cavité 20a et une dernière
sous-cavité 20f par des canaux 24a, 24b, 24c, 24d, 24e ménagés à l'intérieur
des tronçons de cuvelage 14a, 14b, 14c, 14d, 14e subsistant après abrasion du
cuvelage 14 dans les différentes zones déterminées. Un canal 24f ménagé à
l'intérieur du cuvelage 14 relie la cavité 20f à la surface du sol 6.In these figures 4 and 5, the sub-cavities 20a, 20b, 20c, 20d, 20e, 20f
are linked in pairs between a
Un tube 22 est introduit concentriquement dans le canal 24 du
cuvelage, avancé jusque dans la sous-cavité 20a en traversant chacune des
sous-cavités 20f, 20e, 20d, 20c, 20b et en passant dans chacun des canaux 24f,
24e, 24d, 24c, 24b, 24a. Ce tube 22 possède un diamètre extérieur notablement
inférieur au diamètre intérieur du cuvelage 14 afin de permettre une
circulation fluide entre le tube 22 et le cuvelage 14 dans les canaux 24a, 24b,
24c, 24d, 24e, 24f.A
Le tube 22 possède un orifice 22a formant point d'injection et
destiné à permettre l'injection d'un solvant du sel, ici de l'eau, dans les
différentes sous-cavités 20a, 20b, 20c, 20d, 20e, 20f.The
Tel qu'illustré à la figure 4, une pompe d'injection 28 met en
pression l'eau injectée par le tube 22 formant conduit d'injection. L'eau
injectée par le point d'injection 22a dans la dernière sous-cavité 20a creuse la
couche de sel 1 par dissolution du sel dans cette sous-cavité 20a. La saumure
formée par dissolution du sel dans l'eau circule dans un espace de
communication formé par les canaux 24a, 24b, 24c, 24d, 24e et les sous-cavités
20b, 20c, 20d, 20e, 20f. Cette saumure sous pression est extraite de la
sous-cavité 20f par le canal 24f formant canal d'extraction.As illustrated in FIG. 4, an
L'espace de communication constitue un circuit ouvert de
circulation de l'eau sous forme de saumure. Entre deux sous-cavités, l'eau est
guidée dans un canal qui l'isole de la couche de sel 1, le cuvelage et le
matériau de colmatage étant étanches vis-à-vis de l'eau.The communication space constitutes an open circuit of
circulation of water in the form of brine. Between two sub-cavities, the water is
guided in a channel which isolates it from the
Tel qu'illustré à la figure 6, la dissolution s'effectue essentiellement dans la sous-cavité 20a où l'eau est injectée.As illustrated in Figure 6, the dissolution takes place essentially in the sub-cavity 20a where the water is injected.
Lorsque l'on juge qu'une sous-cavité a atteint la taille souhaitée - par exemple en réalisant un bilan de masse entre l'injection d'eau et l'extraction de saumure -, le tube est reculé, de sorte que le point d'injection est déplacé d'une sous-cavité en direction de la dernière. L'opération de dissolution s'effectue alors de façon similaire à ce qui a été exposé pour la première sous-cavité. When it is judged that a sub-cavity has reached the desired size - for example by carrying out a mass balance between the injection of water and brine extraction -, the tube is moved back, so that the injection point is moved from one sub-cavity towards the last. The operation of dissolution is then carried out in a similar way to what has been exposed for the first sub-cavity.
A la figure 7, plusieurs sous-cavités 20a, 20b, 20c ont été creusées
par dissolution. La dissolution de chacune des sous-cavités est arrêtée avant
d'atteindre la couche minérale 2 située au-dessus de la couche de sel 1, afin
d'assurer l'étanchéité. La longueur des canaux 24a, 24b, 24c, 24d, 24e et des
ébauches de cavités 20a, 20b, 20c, 20d, 20e, 20f illustrés à la figure 4 a été
choisie pour permettre une communication entre les différentes sous-cavités
à la fin de la dissolution. De ce fait, les variations de dimensions et
particulièrement de hauteur entre la cavité finale formée par la réunion de
toutes les sous-cavités et la couche de sel sera relativement faible. Ici, la
longueur des canaux est d'environ 50 mètres, la longueur des ébauches de
cavités environ 100 mètres pour une couche de sel d'une épaisseur
approximative de 100 mètres. Le trou de forage 8 pourra avoir un diamètre
de l'ordre de quelques centimètres, et avantageusement d'environ 25
centimètres.In FIG. 7, several sub-cavities 20a, 20b, 20c have been dug
by dissolution. The dissolution of each of the sub-cavities is stopped before
reach the
Aux figures 8 à 10, les éléments correspondant à ceux des figures 1 à 7 ont été repérés avec un nombre augmenté de 100 par rapport à ceux des figures précédentes.In Figures 8 to 10, the elements corresponding to those of Figures 1 to 7 were identified with an increased number of 100 compared to those of previous figures.
A la figure 8, les ébauches de sous-cavités 120a, 120b, 120c, 120d et
les canaux 124a, 124b, 124c, 124d sont réalisés directement lors de l'opération
de forage. En effet, le trou de forage 108, et plus précisément le tronçon
globalement horizontal 108b, comprend une succession de tronçons réalisés
dans la couche de sel 101 (lesquels forment les ébauches de sous-cavités 120a,
120b, 120c, 120d) et de tronçons réalisés dans la couche minérale 104 située
sous la couche de sel 101 (lesquels forment des canaux de liaisons 124a, 124b,
124c, 124d étanches vis-à-vis de l'eau, puisque la couche minérale 104 est
supposée pas ou peu soluble dans le solvant).In FIG. 8, the blanks of sub-cavities 120a, 120b, 120c, 120d and
Le creusement des différentes sous-cavités est réalisé d'une façon
comparable à la variante décrite en références aux figures 1 à 7. A la figure 9,
le tube 122 a été avancé jusque dans la première sous-cavité 120a. Le solvant
est injecté par le point d'injection 122a dans la cavité 120a, dissout le sel, puis
passe successivement dans les canaux 124a, 124b, 124c, 124d et les ébauches
de sous-cavités 120b, 120c, 120d, 120e. La saumure formée par dissolution du
sel est extraite de la cavité 120e par le canal d'extraction 124f.The digging of the various sub-cavities is carried out in a way
comparable to the variant described with reference to FIGS. 1 to 7. In FIG. 9,
the
A la figure 10, la dernière sous-cavité 120e est en cours de
creusement. On s'aperçoit sur cette figure 10 que les canaux 124a, 124b, 124c,
124d jouent un rôle semblable à celui des canaux 24a, 24b, 24c, 24d, 24e des
figures 4 à 7 en isolant l'eau de la couche de sel.In FIG. 10, the
Bien que l'on ait représenté respectivement six et cinq sous- cavités pour chacune des variantes, la solution présentée ne semble pas présenter de limitation quant au nombre des sous-cavités.Although six and five sub-cavities have been represented respectively for each variant, the solution presented does not seem to present any limitation as to the number of sub-cavities.
Bien entendu, l'invention n'est nullement limitée aux réalisations
décrites ci-dessus. Ainsi, il serait possible de remplacer le cuvelage 14 des
figures 2 à 7 par un cuvelage présentant dans des zones déterminées des
ouvertures radiales, et de ne pas disposer le matériau de colmatage sur ces
ouvertures radiales afin de réaliser les ébauches de sous-cavités.Of course, the invention is in no way limited to the embodiments
described above. Thus, it would be possible to replace the
Il serait également possible de réaliser un trou de forage comprenant deux parties verticales reliées par une partie horizontale, l'une des parties verticales servant à l'injection d'eau et l'autre partie à l'extraction de saumure.It would also be possible to make a borehole comprising two vertical parts connected by a horizontal part, one vertical parts used for water injection and the other part for extraction brine.
Il serait aussi possible d'extraire la saumure directement dans la sous-cavité où est injecté le solvant, par exemple en remplaçant le tube d'injection par un double cuvelage présentant deux canaux et en disposant une extrémité de ces canaux en des zones sensiblement éloignées d'une même sous-cavité. L'eau serait alors injectée par un canal et la saumure extraite par l'autre canal.It would also be possible to extract the brine directly into the sub-cavity where the solvent is injected, for example by replacing the tube injection by a double casing having two channels and having one end of these channels in zones substantially distant from a same sub-cavity. The water would then be injected through a channel and the brine extracted through the other channel.
Cette solution pourrait encore être complétée en disposant des double-cuvelages dans différentes cavités en même temps.This solution could still be completed by having the double casings in different cavities at the same time.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9611898A FR2754012B1 (en) | 1996-09-30 | 1996-09-30 | METHOD AND INSTALLATION FOR DIGGING A CAVITY FORMED BY A PLURALITY OF SUB-CAVITIES IN A LAYER OF SMALL THICKNESS SALT |
FR9611898 | 1996-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0833037A1 true EP0833037A1 (en) | 1998-04-01 |
EP0833037B1 EP0833037B1 (en) | 2002-12-11 |
Family
ID=9496200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97402072A Expired - Lifetime EP0833037B1 (en) | 1996-09-30 | 1997-09-05 | Method for leaching out a cavity having a plurality of under-cavities in a thin layer of salt |
Country Status (8)
Country | Link |
---|---|
US (1) | US5988760A (en) |
EP (1) | EP0833037B1 (en) |
AT (1) | ATE229611T1 (en) |
CA (1) | CA2216029A1 (en) |
DE (1) | DE69717752T2 (en) |
ES (1) | ES2188879T3 (en) |
FR (1) | FR2754012B1 (en) |
PT (1) | PT833037E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1069732C (en) * | 1999-05-15 | 2001-08-15 | 洪泽县化工(集团)总公司 | Mirabilite exploiting water-dissolution process with two wells communicated by horizontal hole |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6708764B2 (en) * | 2002-07-12 | 2004-03-23 | Cdx Gas, L.L.C. | Undulating well bore |
US6826911B2 (en) * | 2001-03-12 | 2004-12-07 | Pomfret Storage Company, Llc | Storage of energy producing fluids and process thereof |
US6516616B2 (en) | 2001-03-12 | 2003-02-11 | Pomfret Storage Comapny, Llc | Storage of energy producing fluids and process thereof |
US20030029617A1 (en) * | 2001-08-09 | 2003-02-13 | Anadarko Petroleum Company | Apparatus, method and system for single well solution-mining |
WO2018114013A1 (en) * | 2016-12-23 | 2018-06-28 | Ewe Gasspeicher Gmbh | Method for leaching out a cavity, cavity produced using said method, method for producing an energy storage device, and energy storage device produced using said method |
CN109505655A (en) * | 2019-01-16 | 2019-03-22 | 河南理工大学 | A kind of method of construction of salt hole air reserved storeroom |
CN112709604B (en) * | 2019-10-24 | 2024-01-30 | 中国石油天然气股份有限公司 | Device and method for removing residues and brine in salt cavern gas storage |
CN111305808A (en) * | 2020-03-31 | 2020-06-19 | 南风集团淮安元明粉有限公司 | Bittern collecting device by sieve tube method |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3050122A (en) * | 1960-04-04 | 1962-08-21 | Gulf Research Development Co | Formation notching apparatus |
US3510167A (en) * | 1968-08-19 | 1970-05-05 | Hardy Salt Co | Methods of solution mining |
US4339008A (en) * | 1980-06-09 | 1982-07-13 | D. B. D. Drilling, Inc. | Well notching tool |
US4386665A (en) * | 1980-01-14 | 1983-06-07 | Mobil Oil Corporation | Drilling technique for providing multiple-pass penetration of a mineral-bearing formation |
US4418960A (en) * | 1981-11-04 | 1983-12-06 | Texasgulf Inc. | Multiple-bed solution mining of an inclined structure |
US4425003A (en) * | 1981-11-04 | 1984-01-10 | Texasgulf Inc. | Single well-multiple cavity solution mining of an inclined structure |
US4858689A (en) * | 1988-04-11 | 1989-08-22 | Resource Enterprises, Inc. | Coal gasification well drilling process |
US5246273A (en) * | 1991-05-13 | 1993-09-21 | Rosar Edward C | Method and apparatus for solution mining |
WO1995010689A1 (en) * | 1993-10-13 | 1995-04-20 | Sandia National Laboratories | Horizontal natural gas storage caverns and methods for producing same |
-
1996
- 1996-09-30 FR FR9611898A patent/FR2754012B1/en not_active Expired - Lifetime
-
1997
- 1997-09-05 DE DE69717752T patent/DE69717752T2/en not_active Expired - Lifetime
- 1997-09-05 EP EP97402072A patent/EP0833037B1/en not_active Expired - Lifetime
- 1997-09-05 ES ES97402072T patent/ES2188879T3/en not_active Expired - Lifetime
- 1997-09-05 AT AT97402072T patent/ATE229611T1/en active
- 1997-09-05 PT PT97402072T patent/PT833037E/en unknown
- 1997-09-12 US US08/928,506 patent/US5988760A/en not_active Expired - Lifetime
- 1997-09-22 CA CA002216029A patent/CA2216029A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3050122A (en) * | 1960-04-04 | 1962-08-21 | Gulf Research Development Co | Formation notching apparatus |
US3510167A (en) * | 1968-08-19 | 1970-05-05 | Hardy Salt Co | Methods of solution mining |
US4386665A (en) * | 1980-01-14 | 1983-06-07 | Mobil Oil Corporation | Drilling technique for providing multiple-pass penetration of a mineral-bearing formation |
US4339008A (en) * | 1980-06-09 | 1982-07-13 | D. B. D. Drilling, Inc. | Well notching tool |
US4418960A (en) * | 1981-11-04 | 1983-12-06 | Texasgulf Inc. | Multiple-bed solution mining of an inclined structure |
US4425003A (en) * | 1981-11-04 | 1984-01-10 | Texasgulf Inc. | Single well-multiple cavity solution mining of an inclined structure |
US4858689A (en) * | 1988-04-11 | 1989-08-22 | Resource Enterprises, Inc. | Coal gasification well drilling process |
US5246273A (en) * | 1991-05-13 | 1993-09-21 | Rosar Edward C | Method and apparatus for solution mining |
WO1995010689A1 (en) * | 1993-10-13 | 1995-04-20 | Sandia National Laboratories | Horizontal natural gas storage caverns and methods for producing same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1069732C (en) * | 1999-05-15 | 2001-08-15 | 洪泽县化工(集团)总公司 | Mirabilite exploiting water-dissolution process with two wells communicated by horizontal hole |
Also Published As
Publication number | Publication date |
---|---|
FR2754012B1 (en) | 1999-03-26 |
EP0833037B1 (en) | 2002-12-11 |
US5988760A (en) | 1999-11-23 |
ATE229611T1 (en) | 2002-12-15 |
CA2216029A1 (en) | 1998-03-30 |
FR2754012A1 (en) | 1998-04-03 |
PT833037E (en) | 2003-04-30 |
DE69717752T2 (en) | 2003-07-17 |
ES2188879T3 (en) | 2003-07-01 |
DE69717752D1 (en) | 2003-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0819834B1 (en) | Method for making a cavity in a thin-walled salt mine | |
EP0833037B1 (en) | Method for leaching out a cavity having a plurality of under-cavities in a thin layer of salt | |
CA1103655A (en) | No translation available | |
FR2619154A1 (en) | IMPROVED HYDRAULIC METHOD AND DEVICE FOR WELL PENETRATION | |
EP2156907A1 (en) | Equipment for treating pollutants in a soil | |
FR2915232A1 (en) | TREPAN FOR DRILLING A WELL AND METHOD FOR DRESSING THE SAME. | |
FR2680380A1 (en) | METHOD FOR PRODUCING A UNIVERSAL FOUNDATION BODY AND DEVICE FOR IMPLEMENTING SAID METHOD | |
FR2706924A1 (en) | ||
CA3062299A1 (en) | Method and device for freezing a mass of soil | |
FR2666621A1 (en) | PRODUCT AND METHOD FOR ACID DIVERSION IN THE TREATMENT OF UNDERGROUND FORMATIONS. | |
FR2624410A1 (en) | PROCESS FOR CONTAINING UNDERGROUND WASTE IN A CAVITY CREUTED BY LEACHING IN SALT | |
EP0457653B1 (en) | Safety sleeve and device for wells, particularly for a subterranean reservoir of fluid under pressure | |
FR2731042A1 (en) | Process for making and filling salt storage cavities for gases | |
EP0580510A1 (en) | Method, equipment and device for generating and injecting foam for digging of soil | |
FR2917776A1 (en) | TUNNEL COATING TIGHTS AND METHOD OF MAINTAINING THE SKIRT OF A TUNNELIER. | |
WO2021048496A1 (en) | Method and device for large-diameter borehole or digging of wells following a plurality of inclinations | |
FR2589516A1 (en) | Method and shield machine for digging underground galleries, particularly in aquiferous ground with little cohesion | |
FR2496160A1 (en) | Sealed connector for deep drilling tools - where drilling liq. can be fed to tool, or another liq. can be fed into drilled hole without reaching the tool | |
FR2676500A1 (en) | Method and machine with shield for excavating underground galleries (tunnels), in particular in water-bearing soils with low cohesion | |
WO2005103438A2 (en) | Drilling method and assembly for drilling large-diameter holes | |
FR2974141A1 (en) | NON-DESTRUCTIVE DRILLING METHOD AND DEVICE | |
FR2555250A1 (en) | PLACING PLUGS OR SCREENS BY HORIZONTAL DRILLING | |
CA2075104C (en) | Process and device for the exploitation of subterranean deposit by means of a tunnel borer | |
FR2661942A1 (en) | Safety sleeve for well communicating in particular with an underground reserve of fluid under pressure, associated safety assembly and method of utilising the well | |
CA1127856A (en) | Diversion sluice gate with wheel retracting system for hydro-electric plant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;RO;SI |
|
17P | Request for examination filed |
Effective date: 19980907 |
|
AKX | Designation fees paid |
Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20020409 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021211 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021211 |
|
REF | Corresponds to: |
Ref document number: 229611 Country of ref document: AT Date of ref document: 20021215 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
REF | Corresponds to: |
Ref document number: 69717752 Country of ref document: DE Date of ref document: 20030123 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030311 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030311 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: LUCHS & PARTNER PATENTANWAELTE |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: EP Ref document number: 20030400829 Country of ref document: GR |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20030408 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20030311 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2188879 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D Ref document number: 0833037E Country of ref document: IE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030905 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030930 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030912 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: GDF SUEZ SOCIETE ANONYME Free format text: GAZ DE FRANCE (SERVICE NATIONAL)#23 RUE PHILIBERT-DELORME#F-75017 PARIS (FR) -TRANSFER TO- GDF SUEZ SOCIETE ANONYME#12-26 RUE DU DOCTEUR LANCEREAUX#75008 PARIS (FR) |
|
NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
Owner name: GDF SUEZ |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CJ Ref country code: FR Ref legal event code: CD Ref country code: FR Ref legal event code: CA |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 69717752 Country of ref document: DE Representative=s name: WSL PATENTANWAELTE PARTNERSCHAFTSGESELLSCHAFT, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 69717752 Country of ref document: DE Representative=s name: WSL PATENTANWAELTE PARTNERSCHAFT MBB, DE Effective date: 20111028 Ref country code: DE Ref legal event code: R081 Ref document number: 69717752 Country of ref document: DE Owner name: GDF SUEZ S.A., FR Free format text: FORMER OWNER: GAZ DE FRANCE (SERVICE NATIONAL), PARIS, FR Effective date: 20111028 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: PC Ref document number: 229611 Country of ref document: AT Kind code of ref document: T Owner name: GDF SUEZ, FR Effective date: 20130328 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20160824 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20160826 Year of fee payment: 20 Ref country code: CH Payment date: 20160829 Year of fee payment: 20 Ref country code: DE Payment date: 20160823 Year of fee payment: 20 Ref country code: GB Payment date: 20160825 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20160823 Year of fee payment: 20 Ref country code: GR Payment date: 20160823 Year of fee payment: 20 Ref country code: FR Payment date: 20160822 Year of fee payment: 20 Ref country code: PT Payment date: 20160901 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20160824 Year of fee payment: 20 Ref country code: BE Payment date: 20160823 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69717752 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MK Effective date: 20170904 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20170904 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 229611 Country of ref document: AT Kind code of ref document: T Effective date: 20170905 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20170904 Ref country code: PT Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20170912 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MK Effective date: 20170905 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20180508 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20170906 |