EP2180138A2 - Injection of gas to increase the production of crude oil sources - Google Patents
Injection of gas to increase the production of crude oil sources Download PDFInfo
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- EP2180138A2 EP2180138A2 EP09011516A EP09011516A EP2180138A2 EP 2180138 A2 EP2180138 A2 EP 2180138A2 EP 09011516 A EP09011516 A EP 09011516A EP 09011516 A EP09011516 A EP 09011516A EP 2180138 A2 EP2180138 A2 EP 2180138A2
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
Definitions
- the invention relates to a method for introducing a gas into a petroleum-containing rock or earth layer by means of a suitable conduit, wherein the conduit is introduced into the rock or earth layer, and the gas for the purpose of increased production of petroleum from the petroleum-containing Rock or soil layer is injected (Enhanced Oil Recovery).
- gas is to be understood below as meaning all gases and gas mixtures which are used in so-called tertiary oil production.
- nitrogen, carbon dioxide, natural gas and / or associated gas (s) are used as technical gases in tertiary oil production.
- the yields of oil deposits are increased by the fact that technical gases are introduced or injected into the oil reservoir.
- the technical gas in order to make petroleum flow due to the increased pressure of the introduced gases in the reservoir or source, the technical gas must first be injected for a comparatively long time in the rainfall before a significant effect can be recognized.
- the technical gas must be introduced between 6 and 12 months, until the desired, increased oil production is achieved. During this period, however, it is uncertain whether the desired effect - namely the increase in oil yield - can be achieved at all.
- the rock of a deposit has cracks, through which the introduced gas can flow away and consequently can not contribute to oil production.
- the object of the present invention is to specify a generic method for introducing at least one technical gas in the region of an oil reservoir, which makes it possible to increase the yield of the oil deposit.
- a generic method for introducing at least one technical gas in the area of an oil reservoir is proposed, which is characterized in that the gas is introduced at a rate sufficient to cause a turbulent flow of the gas in the channels of the petroleum-containing Rock or earth layer to produce.
- the technical gas to be introduced into the oil deposit is introduced in such a way that a turbulent gas flow is formed in the petroleum-containing rock or earth layer.
- a turbulent gas flow is formed in the petroleum-containing rock or earth layer.
- the normally laminar gas flow in the channels of the rock of the deposit is converted into a turbulent flow.
- the volume of gas passed through a channel is proportional to its cross-sectional area, hence to the square of the channel diameter (V gas ⁇ d 2 ).
- the speed is proportional to the square of the diameter of a channel.
- V gas is the volume flow of the gas in the channel with the doubled diameter
- V 0 is the volume flow in the original channel, each with the same pressure loss.
- Laminar flowing gas flows in a so-called plug flow through the rock channels. This has the consequence that the velocity on the wall of a channel is almost zero and thus no mass transfer takes place.
- the gas velocity over the cross section is approximately constant high up to the wall of a channel, so that the separation forces for oil also remain high.
- significantly higher detachment forces act on the channel edges according to the method according to the invention, as a result of which significantly more oil can be dissolved out of the petroleum-containing rock or earth layer. That is, the yield of petroleum by the process according to the invention is significantly higher than in a process according to the prior art.
- the speed of the gas during introduction is preferably at least sonic speed.
- the gas is introduced as a pressure wave.
- the gas is introduced in this embodiment as a pressure wave.
- a pressure wave is understood in the context of this application that the gas is at least temporarily introduced at a high pressure.
- the gas flows at high speed, eg sonic speed or supersonic speed, into the petroleum-containing rock or earth layer.
- a pressure in the range of about 10 bar. The exact pressure depends on the porosity of the petroleum-containing rock or soil layer and may be more than 300 bar when introduced into deeper layers.
- the duration of the pressure waves is varied.
- the duration of a pressure wave is chosen between 1 minute and 5 hours, preferably between 3 minutes and 3 hours.
- the duration of a pressure wave in this embodiment of the invention depends on the porosity of the petroleum-containing rock or earth layer. The more porous the petroleum-containing rock or earth layer, the lower the differential pressure of the pressure wave to the rock pressure can be selected to achieve the desired effect. For petroleum-containing rock or earth layers, which have a very low porosity, the duration of a pressure wave can be quite well longer than specified.
- Nitrogen, carbon dioxide, natural gas and / or associated gas (s) are preferably used as the technical gas to be introduced.
- the particular gas used is suitably selected according to the nature and conditions of the petroleum-containing rock or earth layer. Gaseous hydrocarbons mix with the petroleum in the rock or soil layer, thereby reducing the capillary forces that hold the petroleum in the rock or earth layer and thus facilitate transport to the delivery line. A similar effect occurs with the use of gaseous carbon dioxide. Gaseous carbon dioxide mixes with the petroleum and reduces the viscosity. Thus, with the use of gaseous carbon dioxide also easier transport of petroleum is achieved in the petroleum-containing rock or soil layer. The economically cheaper nitrogen, however, practically does not mix with the petroleum. With multiple injection of gaseous nitrogen, a gas front is formed, through which the oil is dissolved out of the rock or earth layer.
- the initial pressure of the pressure wave is selected to be so high that the storage rock of the oil reservoir is not damaged.
- the maximum turbulence of the gas flow can be achieved without damaging the petroleum-containing rock or soil layer.
- the pressure to be applied to the load capacity of the bearing rock adapted so that no new fractures occur within the storage rock.
- the initial pressure of the pressure wave is at least 10 bar higher than the rock pressure in the petroleum-containing rock or earth layer.
- the maximum pressure may possibly be less than 15 bar, while at depths below the surface, for example at a depth of 3,000 m, usually a maximum pressure of 300 bar and higher can be realized.
- the method according to the invention for introducing at least one technical gas in the region of an oil reservoir enables an increase in the yield of the oil reservoir, whereby the required amount of the technical gas is reduced and, moreover, the effect of the increase in yield, compared to the methods of the prior art, is much faster visible becomes.
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Einbringen eines Gases in eine Erdöl-haltige Gesteins- oder Erdschicht mittels einer geeigneten Leitung, wobei die Leitung in die Gesteins- oder Erdschicht eingebracht wird, und das Gas zum Zweck einer erhöhten Förderung von Erdöl aus der Erdöl-haltigen Gesteins- oder Erdschicht injiziert wird (Enhanced Oil Recovery).The invention relates to a method for introducing a gas into a petroleum-containing rock or earth layer by means of a suitable conduit, wherein the conduit is introduced into the rock or earth layer, and the gas for the purpose of increased production of petroleum from the petroleum-containing Rock or soil layer is injected (Enhanced Oil Recovery).
Unter dem Begriff "technische Gase" seien nachfolgend alle Gase sowie Gasgemische zu verstehen, die bei der sog. tertiären Erdölgewinnung Anwendung finden (können). Als technische Gase bei der tertiären Erdölgewinnung werden insbesondere Stickstoff, Kohlendioxid, Erdgas und/oder Erdölbegleitgas(e) verwendet.The term "technical gases" is to be understood below as meaning all gases and gas mixtures which are used in so-called tertiary oil production. In particular, nitrogen, carbon dioxide, natural gas and / or associated gas (s) are used as technical gases in tertiary oil production.
Neben der primären und sekundären Erdölgewinnung gibt es die sog. tertiäre Erdölgewinnung bzw. Enhanced Oil Recovery. Bei dieser werden die Ausbeuten von Erdöllagerstätten dadurch erhöht, dass technische Gase in die Öllagerstätte eingebracht bzw. injiziert werden. Um Erdöl jedoch durch den erhöhten Druck der eingebrachten Gase in der Lagerstätte bzw. Quelle zum Fließen zu bringen, muss das technische Gas im Regefall zunächst vergleichsweise lange injiziert werden, ehe ein nennenswerter Effekt zu erkennen ist. Üblicherweise muss das technische Gas dazu zwischen 6 und 12 Monate eingebracht werden, bis die gewünschte, erhöhte Ölförderung erreicht ist. Während dieses Zeitraumes ist es jedoch ungewiss, ob der gewünschte Effekt - nämlich die Erhöhung der Erdölausbeute - überhaupt erreicht werden kann. Oftmals weist das Gestein einer Lagerstätte Risse auf, durch die das eingebrachte Gas abfließen und folglich nicht zur Ölgewinnung beitragen kann.In addition to primary and secondary oil production, there is the so-called tertiary oil production or enhanced oil recovery. In this case, the yields of oil deposits are increased by the fact that technical gases are introduced or injected into the oil reservoir. However, in order to make petroleum flow due to the increased pressure of the introduced gases in the reservoir or source, the technical gas must first be injected for a comparatively long time in the rainfall before a significant effect can be recognized. Typically, the technical gas must be introduced between 6 and 12 months, until the desired, increased oil production is achieved. During this period, however, it is uncertain whether the desired effect - namely the increase in oil yield - can be achieved at all. Often, the rock of a deposit has cracks, through which the introduced gas can flow away and consequently can not contribute to oil production.
Bei dem Einbringen des technischen Gases ist darauf zu achten, dass das Gas weder zu schnell noch zu langsam strömt. Ist die Strömungsgeschwindigkeit des Gases zu hoch, besteht die Gefahr, dass sich innerhalb des Erdöles ein Kanal bildet, in dem primär Gas und nur eine geringe Menge Öl fließt. Wird das Gas zu langsam injiziert, besteht wiederum die Gefahr, dass seine Geschwindigkeit und die damit eingebrachte Energie nicht ausreichend hoch sind, um das Öl zu transportieren.When introducing the technical gas, care must be taken that the gas does not flow too fast or too slowly. If the flow velocity of the gas is too high, there is a risk that within the oil forms a channel in which primarily gas and only a small amount of oil flows. If the gas is injected too slowly, there is a risk that its speed and the energy it supplies will not be high enough to transport the oil.
Aus dem Stand der Technik ist des Weiteren die sog. Huff-und-Puff-Methode bekannt. Bei dieser wird mittels eines technischen Gases Druck auf eine Ölquelle gegeben und anschließend über die Leitung, über die das technische Gas in die Lagerstätte injiziert wurde, Öl aus der mit Druck beaufschlagten Quelle entnommen. Diese Öl-Entnahme erfolgt solange, bis der Druck wieder abgebaut ist. Anschließend wird der vorbeschriebene Vorgang wiederholt.Furthermore, the so-called Huff-and-Puff method is known from the prior art. In this process, pressure is applied to an oil source by means of a technical gas, and then oil is withdrawn from the pressurized source via the line through which the technical gas has been injected into the reservoir. This oil removal takes place until the pressure is reduced again. Subsequently, the above procedure is repeated.
Aufgabe der vorliegenden Erfindung ist es, ein gattungsgemäßes Verfahren zum Einbringen wenigstens eines technischen Gases im Bereich einer Öllagerstätte anzugeben, das eine Erhöhung der Ausbeute der Öllagerstätte ermöglicht.The object of the present invention is to specify a generic method for introducing at least one technical gas in the region of an oil reservoir, which makes it possible to increase the yield of the oil deposit.
Zur Lösung dieser Aufgabe wird ein gattungsgemäßes Verfahren zum Einbringen wenigstens eines technischen Gases im Bereich einer Öllagerstätte vorgeschlagen, das dadurch gekennzeichnet ist, dass das Gas mit einer Geschwindigkeit eingebracht wird, die ausreichend ist, eine turbulente Strömung des Gases in den Kanälen der Erdöl-haltigen Gesteins- oder Erdschicht zu erzeugen.To solve this problem, a generic method for introducing at least one technical gas in the area of an oil reservoir is proposed, which is characterized in that the gas is introduced at a rate sufficient to cause a turbulent flow of the gas in the channels of the petroleum-containing Rock or earth layer to produce.
Erfindungsgemäß wird das in die Öllagerstätte einzubringende technische Gas derart eingebracht, dass sich eine turbulente Gasströmung in der Erdöl-haltigen Gesteins-oder Erdschicht ausbildet. Dadurch wird erreicht, dass die normalerweise laminare Gasströmung in den Kanälen des Gesteins der Lagerstätte in eine turbulente Strömung umgewandelt wird. Im Falle einer laminaren Strömung ist das durchgesetzte Gasvolumen in einem Kanal proportional zu dessen Querschnittsfläche, folglich zum Quadrat des Kanaldurchmessers (VGas ≈ d2). Ferner ist die Geschwindigkeit proportional zum Quadrat des Durchmessers eines Kanals. Für die durchgesetzte Gasmenge gilt somit: VGas ≈ d2 x d2 = d4. Verdoppelt man den Durchmesser eines Kanals ergibt sich VGas = 16 x V0. Dabei ist VGas der Volumenstrom des Gases im Kanal mit dem verdoppelten Durchmesser, V0 der Volumenstrom im ursprünglichen Kanal, bei jeweils gleichem Druckverlust. Bei dem erfindungsgemäßen Einbringen des Gases mit einer Geschwindigkeit, bei der sich eine turbulente Gasströmung ausbildet, verringert sich aufgrund der Turbulenz der vorbeschriebene Einfluss des Durchmessers auf das Quadrat. Eine Verdopplung des Durchmessers führt also zum Vierfachen des Volumens der Gasströmung, und nicht wie bisher zur 16fachen. Dadurch wird durch das erfindungsgemäße Verfahren deutlich weniger Gas injiziert.According to the invention, the technical gas to be introduced into the oil deposit is introduced in such a way that a turbulent gas flow is formed in the petroleum-containing rock or earth layer. As a result, the normally laminar gas flow in the channels of the rock of the deposit is converted into a turbulent flow. In the case of a laminar flow, the volume of gas passed through a channel is proportional to its cross-sectional area, hence to the square of the channel diameter (V gas ≈ d 2 ). Furthermore, the speed is proportional to the square of the diameter of a channel. For the gas quantity passed through, the following applies: V gas ≈ d 2 xd 2 = d 4 . Doubling the diameter of a channel results in V gas = 16 x V 0 . In this case, V gas is the volume flow of the gas in the channel with the doubled diameter, V 0 is the volume flow in the original channel, each with the same pressure loss. In the inventive introduction of the gas at a speed at which a turbulent gas flow is formed, due to the turbulence reduces the above-described influence of the diameter on the square. A doubling of the diameter thus leads to four times the volume of the gas flow, and not 16 times as before. As a result, significantly less gas is injected by the method according to the invention.
Laminar strömendes Gas fließt in einer sog. Pfropfenströmung durch die Gesteinskanäle. Dies hat zur Folge, dass die Geschwindigkeit an der Wand eines Kanals annähernd null ist und somit kein Stoffaustausch stattfindet. Im Falle einer turbulenten Strömung nach dem erfindungsgemäßen Verfahren ist die Gasgeschwindigkeit hingegen über den Querschnitt annähernd gleich bleibend hoch bis an die Wand eines Kanals, so dass die Ablösekräfte für Öl ebenfalls hoch bleiben. Somit wirken an den Kanalrändern nach dem erfindungsgemäßen Verfahren deutlich höhere Ablösekräfte, wodurch auch deutlich mehr Öl aus der Erdöl-haltigen Gesteins-oder Erdschicht herausgelöst werden kann. Das heißt, die Ausbeute an Erdöl nach dem erfindungsgemäßen Verfahren ist deutlich höher als bei einem Verfahren nach dem Stand der Technik.Laminar flowing gas flows in a so-called plug flow through the rock channels. This has the consequence that the velocity on the wall of a channel is almost zero and thus no mass transfer takes place. In the case of a turbulent flow according to the inventive method, however, the gas velocity over the cross section is approximately constant high up to the wall of a channel, so that the separation forces for oil also remain high. Thus, significantly higher detachment forces act on the channel edges according to the method according to the invention, as a result of which significantly more oil can be dissolved out of the petroleum-containing rock or earth layer. That is, the yield of petroleum by the process according to the invention is significantly higher than in a process according to the prior art.
Durch das erfindungsgemäße Verfahren kann somit bei geringerer eingebrachter Gasmenge wesentlich schneller ein Effekt bei der Förderung des Erdöls beobachtet werden. Dies ist insbesondere von wirtschaftlichem Vorteil, wenn entschieden werden muss, ob und mit welchen Aufwand weiter Erdöl nach einem Verfahren der tertiären Erdölförderung aus der Erdöl-haltigen Gesteins- oder Erdschicht gewonnen werden kann.By the method according to the invention can thus be observed at a lower introduced amount of gas much faster an effect in the production of petroleum. This is of particular economic benefit when it has to be decided whether and with what expense petroleum can still be extracted from the petroleum-containing rock or earth layer by a process of tertiary mineral oil extraction.
Bevorzugt beträgt die Geschwindigkeit des Gas beim Einbringen mindestens Schallgeschwindigkeit beträgt. Durch das Einbringen des Gases mit Schallgeschwindigkeit wird in dieser Ausgestaltung der Erfindung sichergestellt, dass sich in der Erdöl-haltigen Gesteins- oder Erdschicht eine turbulente Gasströmung ausbildet. Das Gas erreicht dabei die Schallgeschwindigkeit an der Öffnung der Leitung bei der Injektion in die Erdöl-haltige Gesteins- oder Erdschicht. Besonders bevorzugt wird das Gas mit Überschallgeschwindigkeit eingebracht.The speed of the gas during introduction is preferably at least sonic speed. By introducing the gas at the speed of sound is ensured in this embodiment of the invention that forms a turbulent gas flow in the petroleum-containing rock or earth layer. The gas thereby reaches the speed of sound at the opening of the line during injection into the petroleum-containing rock or earth layer. Particularly preferably, the gas is introduced at supersonic speed.
Vorteilhafterweise wird das Gas als Druckwelle eingebracht. Zum Erreichen der Schallgeschwindigkeit wird das Gas in dieser Ausgestaltung als Druckwelle eingebracht. Unter einer Druckwelle wird im Rahmen dieser Anmeldung verstanden, dass das Gas zumindest zeitweise mit einem hohen Druck eingebracht wird. Durch das Anlegen eines hohen Druckes strömt das Gas mit hoher Geschwindigkeit, z.B. Schallgeschwindigkeit oder Überschallgeschwindigkeit, in die Erdöl-haltige Gesteins-oder Erdschicht. Unter einem hohen Druck wird im Rahmen dieser Erfindung ein Druck im Bereich von über 10 bar verstanden. Der genau zu wählende Druck hängt dabei von der Porosität der Erdöl-haltigen Gesteins- oder Erdschicht ab und kann beim Einbringen in tiefere Schichten auch über 300 bar betragen kann.Advantageously, the gas is introduced as a pressure wave. To achieve the speed of sound, the gas is introduced in this embodiment as a pressure wave. Under a pressure wave is understood in the context of this application that the gas is at least temporarily introduced at a high pressure. By applying a high pressure, the gas flows at high speed, eg sonic speed or supersonic speed, into the petroleum-containing rock or earth layer. Under a high pressure is understood in the context of this invention, a pressure in the range of about 10 bar. The exact pressure depends on the porosity of the petroleum-containing rock or soil layer and may be more than 300 bar when introduced into deeper layers.
Zweckmäßigerweise wird die Dauer der Druckwellen variiert. Dabei wird die Dauer einer Druckwelle zwischen 1 Minute und 5 Stunden, vorzugsweise zwischen 3 Minuten und 3 Stunden gewählt. Die Dauer einer Druckwelle hängt in dieser Ausgestaltung der Erfindung von der Porosität der Erdölhaltigen Gesteins- oder Erdschicht ab. Je poröser die Erdölhaltige Gesteins- oder Erdschicht ist, desto niedriger kann der Differenzdruck der Druckwelle zum Gesteinsdruck gewählt werden, um den gewünschten Effekt zu erzielen. Bei Erdöl-haltigen Gesteins- oder Erdschichten, die eine sehr geringe Porosität aufweisen, kann die Dauer eine Druckwelle auch durchaus länger als angegeben gewählt werden.Conveniently, the duration of the pressure waves is varied. The duration of a pressure wave is chosen between 1 minute and 5 hours, preferably between 3 minutes and 3 hours. The duration of a pressure wave in this embodiment of the invention depends on the porosity of the petroleum-containing rock or earth layer. The more porous the petroleum-containing rock or earth layer, the lower the differential pressure of the pressure wave to the rock pressure can be selected to achieve the desired effect. For petroleum-containing rock or earth layers, which have a very low porosity, the duration of a pressure wave can be quite well longer than specified.
Bevorzugt werden/wird als einzubringendes technisches Gas Stickstoff, Kohlendioxid, Erdgas und/oder Erdölbegleitgas(e) verwendet. Dabei wird das jeweils verwendete Gas zweckmäßigerweise nach den Beschaffenheiten und Gegebenheiten der Erdölhaltigen Gesteins- oder Erdschicht ausgewählt. Gasförmige Kohlenwasserstoffe vermischen sich mit dem Erdöl in der Gesteins- oder Erdschicht, verringern dadurch die Kapillarkräfte, welche das Erdöl in der Gesteins- oder Erdschicht festhalten und erleichtern so den Transport zur Förderleitung. Ein ähnlicher Effekt tritt bei der Verwendung von gasförmigem Kohlendioxid auf. Gasförmiges Kohlendioxid vermischt sich mit dem Erdöl und verringert die Viskosität. So wird bei der Verwendung von gasförmigem Kohlendioxid ebenfalls ein leichterer Transport des Erdöls in der Erdölhaltigen Gesteins- oder Erdschicht erreicht. Der wirtschaftlich billigere Stickstoff dagegen vermischt sich praktisch nicht mit dem Erdöl. Bei mehrfacher Injektion von gasförmigem Stickstoff bildet sich eine Gasfront, durch die das Erdöl aus der Gesteins-oder Erdschicht herausgelöst wird.Nitrogen, carbon dioxide, natural gas and / or associated gas (s) are preferably used as the technical gas to be introduced. The particular gas used is suitably selected according to the nature and conditions of the petroleum-containing rock or earth layer. Gaseous hydrocarbons mix with the petroleum in the rock or soil layer, thereby reducing the capillary forces that hold the petroleum in the rock or earth layer and thus facilitate transport to the delivery line. A similar effect occurs with the use of gaseous carbon dioxide. Gaseous carbon dioxide mixes with the petroleum and reduces the viscosity. Thus, with the use of gaseous carbon dioxide also easier transport of petroleum is achieved in the petroleum-containing rock or soil layer. The economically cheaper nitrogen, however, practically does not mix with the petroleum. With multiple injection of gaseous nitrogen, a gas front is formed, through which the oil is dissolved out of the rock or earth layer.
Zweckmäßigerweise wird der Anfangsdruck der Druckwelle maximal so hoch gewählt, dass das Lagergestein der Öllagerstätte nicht geschädigt wird. So lässt sich die maximale Turbulenz der Gasströmung erreichen, ohne die Erdöl-haltige Gesteins- oder Erdschicht zu schädigen.Appropriately, the initial pressure of the pressure wave is selected to be so high that the storage rock of the oil reservoir is not damaged. Thus, the maximum turbulence of the gas flow can be achieved without damaging the petroleum-containing rock or soil layer.
Entsprechend der letztgenannten vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens wird der aufzubringende Druck an die Belastbarkeit des Lagergesteins angepasst, so dass keine neuen Brüche innerhalb des Lagergesteins entstehen. Vorteilhafterweise beträgt der Anfangsdruck der Druckwelle mindestens 10 bar höher als der Gesteinsdruck in der Erdöl-haltigen Gesteins- oder Erdschicht. Bei oberflächennahen Schichten kann das Druckmaximum daher ggf. weniger als 15 bar betragen, während bei tief unter der Oberfläche liegenden Schichten, bspw. in 3000 m Tiefe, üblicherweise ein Druckmaximum von 300 bar und höher realisiert werden kann.According to the latter advantageous embodiment of the method according to the invention, the pressure to be applied to the load capacity of the bearing rock adapted so that no new fractures occur within the storage rock. Advantageously, the initial pressure of the pressure wave is at least 10 bar higher than the rock pressure in the petroleum-containing rock or earth layer. For near-surface layers, therefore, the maximum pressure may possibly be less than 15 bar, while at depths below the surface, for example at a depth of 3,000 m, usually a maximum pressure of 300 bar and higher can be realized.
Das erfindungsgemäße Verfahren zum Einbringen wenigstens eines technischen Gases im Bereich einer Öllagerstätte ermöglicht eine Erhöhung der Ausbeute der Öllagerstätte, wobei die benötigte Menge des technischen Gases verringert wird und zudem der Effekt der Ausbeuteerhöhung, verglichen mit den zum Stand der Technik zählenden Verfahren, wesentlich schneller sichtbar wird.The method according to the invention for introducing at least one technical gas in the region of an oil reservoir enables an increase in the yield of the oil reservoir, whereby the required amount of the technical gas is reduced and, moreover, the effect of the increase in yield, compared to the methods of the prior art, is much faster visible becomes.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008052465 | 2008-10-21 | ||
| DE102009038444A DE102009038444A1 (en) | 2008-10-21 | 2009-08-21 | Increasing the yield of crude oil sources |
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| Publication Number | Publication Date |
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| EP2180138A2 true EP2180138A2 (en) | 2010-04-28 |
| EP2180138A3 EP2180138A3 (en) | 2011-10-26 |
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| EP09011516A Withdrawn EP2180138A3 (en) | 2008-10-21 | 2009-09-08 | Injection of gas to increase the production of crude oil sources |
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| US (2) | US20100206556A1 (en) |
| EP (1) | EP2180138A3 (en) |
| BR (1) | BRPI0904210A2 (en) |
| DE (2) | DE102009038445A1 (en) |
| EA (1) | EA200901269A1 (en) |
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| DE102011108854A1 (en) | 2011-07-28 | 2013-01-31 | Linde Ag | A method and apparatus for producing a carbon dioxide rich gas mixture, method and apparatus for improved oil recovery and use of a gas engine |
| US8826995B2 (en) | 2011-08-22 | 2014-09-09 | Linde Aktiengesellschaft | Transport method, transport mixture and transport system for the pressurised transport of carbon dioxide and use of a treatment mixture |
| DE202013010650U1 (en) | 2013-11-23 | 2014-01-10 | Linde Aktiengesellschaft | Combined unit of buoyant units with conveyor system, power plant and air separation plant |
| EP3249153A1 (en) | 2016-05-24 | 2017-11-29 | Linde Aktiengesellschaft | Method and assembly for the production of oil and/or natural gas |
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| IL126150A0 (en) * | 1998-09-09 | 1999-05-09 | Prowell Technologies Ltd | Gas impulse device and method of use thereof |
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| US7882895B2 (en) * | 2008-08-19 | 2011-02-08 | Flow Industries Ltd. | Method for impulse stimulation of oil and gas well production |
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2009
- 2009-08-21 DE DE102009038445A patent/DE102009038445A1/en not_active Withdrawn
- 2009-08-21 DE DE102009038444A patent/DE102009038444A1/en not_active Withdrawn
- 2009-09-08 EP EP09011516A patent/EP2180138A3/en not_active Withdrawn
- 2009-10-15 US US12/579,865 patent/US20100206556A1/en not_active Abandoned
- 2009-10-16 US US12/580,524 patent/US20100096146A1/en not_active Abandoned
- 2009-10-20 EA EA200901269A patent/EA200901269A1/en unknown
- 2009-10-20 MX MX2009011336A patent/MX2009011336A/en unknown
- 2009-10-21 BR BRPI0904210-5A patent/BRPI0904210A2/en not_active IP Right Cessation
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| US3759329A (en) * | 1969-05-09 | 1973-09-18 | Shuffman O | Cryo-thermal process for fracturing rock formations |
| US4516636A (en) * | 1982-01-25 | 1985-05-14 | Doscher Todd M | Enhanced steam drive recovery of heavy oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507858A (en) * | 2015-07-20 | 2016-04-20 | 塔里木油田分公司勘探开发研究院 | Immiscible gas injection and oil replacement type exploitation method for ultra-deep fractured-vuggy carbonate reservoirs |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0904210A2 (en) | 2010-09-14 |
| DE102009038444A1 (en) | 2010-04-22 |
| US20100206556A1 (en) | 2010-08-19 |
| EA200901269A1 (en) | 2010-08-30 |
| MX2009011336A (en) | 2010-05-17 |
| EP2180138A3 (en) | 2011-10-26 |
| DE102009038445A1 (en) | 2010-04-22 |
| US20100096146A1 (en) | 2010-04-22 |
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