NO822104L - SECONDARY OIL EXTRACTION SYSTEM. - Google Patents
SECONDARY OIL EXTRACTION SYSTEM.Info
- Publication number
- NO822104L NO822104L NO822104A NO822104A NO822104L NO 822104 L NO822104 L NO 822104L NO 822104 A NO822104 A NO 822104A NO 822104 A NO822104 A NO 822104A NO 822104 L NO822104 L NO 822104L
- Authority
- NO
- Norway
- Prior art keywords
- steam
- pump
- steam generator
- borehole
- oil
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 238000005755 formation reaction Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/006—Combined heating and pumping means
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cyclones (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Description
Denne oppfinnelse vedrører et sekundært oljeutvinningssystem og i særdeleshet rettet mot en anordning for generering av damp inne i et borehull og for gjenvinning av olje drevet fram av nevnte damp. This invention relates to a secondary oil recovery system and in particular is directed to a device for generating steam inside a borehole and for recovering oil driven forward by said steam.
Bruken av damp for å øke den sekundære oljeutvinning be-gynte i U.S.A. rundt 1960. Opprinnelig benyttet prosessen en dampgenerator plassert på overflaten hvor damp ble injisert ned i en brønn under' behandling. I løpet av de påfølgende 20 år har dampstimulering oppnåd en vid aksept og .nedhulls-dampgeneratorer er utviklet, hvilke generatorer ér senket ned i et borehull for å generere damp iri situ. En slik typisk nedhulls-dampgenerator er vist i US patentsøknad 2 02 9 90, innlevert 11.mars 19 80 åv søkeren i foreliggende sak og med oppfinnere Wiliiam R. Wagner et al. The use of steam to increase secondary oil recovery began in the U.S. around 1960. Originally, the process used a steam generator placed on the surface where steam was injected into a well under treatment. During the following 20 years, steam stimulation has gained wide acceptance and downhole steam generators have been developed, which generators are lowered into a borehole to generate steam iri situ. Such a typical downhole steam generator is shown in US patent application 2 02 9 90, filed March 11, 1980 by the applicant in the present case and with inventors William R. Wagner et al.
Wagneranordningen er en vesentlig forbedring overfor de tidligere benyttede dampgeneratorer. Fremdeles er det imidlertid vesentlig rom for videre forbedringer. Med dampgeneratorer av denne type blir generatoren senket ned i borehullet til nivået for den formasjon som skal behandles. På dette nivå genereres damp som injiseres inn i formasjonen. Etter en ønsket tidsperiode trekkes dampgeneratoren tilbake fra borehullet og erstat-tes med en pumpe som tjener til å pumpe, opp den olje som er frigjort, av dampen. For å" muliggjøre denne overføring kreves selv-følgelig en vesentlig tidsperiode og i denne tidsperiode vil den dampbehandlede formasjon bli nedkjølt. Følgelig vil meget av effekten av dampbehandlingen være bortkastet. Videre vil opera-sjonene med å senke dampgeneratoren ned i borehullet., trekke denne opp igjen .etter fullendt behandling og påfølgende nedsenk-ning av pumpen kreve meget arbeid og forårsake dødtid, noe som i vesentlig grad vil. øke kostnadene ved prosessen. The Wagner device is a significant improvement over the previously used steam generators. However, there is still considerable room for further improvements. With steam generators of this type, the generator is lowered into the borehole to the level of the formation to be treated. At this level, steam is generated and injected into the formation. After a desired period of time, the steam generator is pulled back from the borehole and replaced with a pump that serves to pump up the oil that has been released by the steam. In order to enable this transfer, a significant period of time is naturally required and during this period the steam-treated formation will be cooled. Consequently, much of the effect of the steam treatment will be wasted. Furthermore, the operations of lowering the steam generator into the borehole will draw this coming up again after complete treatment and subsequent submersion of the pump require a lot of work and cause dead time, which will significantly increase the costs of the process.
Ovennevnte ulemper ved den kjente teknikk overvinnes iføl-ge foreliggende oppfinnelse, idet det er tilveiebrakt en fremgangsmåte . og en anordning som vil eliminere tapene forbundet med overførslen av utstyret og som tillater at dampbehandling og produksjon skjer uten mellomliggende overføring av utstyret.' Rent faktisk tillates produksjon å skje samtidig med selve dampbehandlingen. The above-mentioned disadvantages of the known technique are overcome according to the present invention, as a method has been provided. and a device which will eliminate the losses associated with the transfer of the equipment and which allows steam processing and production to take place without intermediate transfer of the equipment.' In fact, production is allowed to take place at the same time as the steam treatment itself.
Fordelene ved foreliggende oppfinnelse eir fortrinnsvis oppnådd ved å tilveiebringe et sekundært oljeutvinningssystem som har en'nedhulls-dampgenerator og en pumpe i alt vesentlig, parallelt med hverandre, for derved å tillate samtidig posisjonering i borehullet og å tillate uavhengig drift av dampgeneratoren og pumpen, slik at pumpen kan opereres sekvensielt eller The advantages of the present invention are preferably achieved by providing a secondary oil recovery system having a downhole steam generator and a pump substantially parallel to each other, thereby allowing simultaneous positioning in the borehole and allowing independent operation of the steam generator and pump, such that the pump can be operated sequentially or
.samtidig med dampgeneratoren,.at the same time as the steam generator,
Et formål med foreliggende oppfinnelse er følgelig å tilveiebringe et forbedret system for sekundær oljeutvinning, An object of the present invention is therefore to provide an improved system for secondary oil recovery,
Et andre formål ved foreliggende oppfinnelse er å tilveiebringe en forbedret fremgangsmåte og anordning for dampbe-■ handling av underjordiske formasjoner og utvinning av olje som frigjøres fra formasjonene på grunn a,v behandlingen. A second object of the present invention is to provide an improved method and device for steam treatment of underground formations and extraction of oil which is released from the formations due to the treatment.
Et tilleggs formål ved foreliggende oppfinnelse er å tilveiebringe en anordning for dampbehandling av borehullformasjo-ner og utvinning av olje som frigjøres ved behandlingen uten å An additional purpose of the present invention is to provide a device for steam treatment of borehole formations and extraction of oil which is released during the treatment without
være avhengig av mellomliggende overføring av anordninger inn i og ut av borehullet. be dependent on intermediate transfer of devices into and out of the borehole.
Et særlig formål ved foreliggende oppfinnelse er å tilveiebringe et sekundært oljeutvinningssystem som omfatter en nedhulls-dampgenerator og en pumpe i alt vesentlig forbundet parallelt med hverandre for å tillate samtidig posisjonering i borehullet samt anordninger for å drive pumpen uavhengig av .dampgeneratoren for å tillate at pumpen opereres sekvensielt eller samtidig med dampgeneratoren.-. A particular object of the present invention is to provide a secondary oil recovery system comprising a downhole steam generator and a pump substantially connected in parallel with each other to allow simultaneous positioning in the borehole as well as means for operating the pump independently of the steam generator to allow the pump operated sequentially or simultaneously with the steam generator.-.
Disse og andre formål og trekk ved foreliggende oppfinnelse vil tre tydeligere fram av den følgende detaljerte beskri-velse under henvisning til tegningene, hvor: Fig. 1 viser i diagrams form et sekundært oljeutvinnings- sys tem ifølge foreliggende oppfinnelse, fig. 2 viser et hori-sontalsnitt gjennom systemet på fig. 1, sett langs linjen 2-2 på denne, og fig. 3 viser i diagrams form en alternativ utførel-sesform av oljeutvinningssystemet vist på fig. 1. Fig. 1 som visér den' form av - foreliggende oppfinnelse som er valgt.for å illustrere -løsningen, viser et sekundært oljeutvinningssystem, generelt indikert med henvisningstallet 2, plassert i et borehull 4 som trenger gjennom flere formasjoner, som vist ved henvisningstallene 6,8,10 og 12. Om ønsket kan borehullet 4 være omgitt av en foring 14 langs deler av sin lengde. Det er -imidlertid åpenbart at formasjonen 10 som skal behandles, enten må være frilagt eller om brønnen er foret, så må foringen være.perforert... These and other objects and features of the present invention will emerge more clearly from the following detailed description with reference to the drawings, where: Fig. 1 shows in diagram form a secondary oil extraction system according to the present invention, fig. 2 shows a horizontal section through the system in fig. 1, set along the line 2-2 on this, and fig. 3 shows in diagram form an alternative embodiment of the oil extraction system shown in fig. 1. Fig. 1 showing the form of the present invention which has been chosen to illustrate the solution shows a secondary oil recovery system, generally indicated by the reference numeral 2, located in a borehole 4 which penetrates several formations, as shown by the reference numerals 6,8,10 and 12. If desired, the borehole 4 can be surrounded by a lining 14 along parts of its length. It is, however, obvious that the formation 10 to be treated must either be exposed or, if the well is lined, the liner must be perforated...
01 jeutvinningssys ternet 2 omfatter en dampgeneratorenhet 16 som kan være tilsvarende den som er beskrevet i US søknaden 01 the extraction system 2 comprises a steam generator unit 16 which may be equivalent to the one described in the US application
og omtalt ovenfor. En vannledning 18,.et drivstoffrør 30 og et luftrør 22 forbinder dampgeneratorenheten 16 med egnede tilfør-selskilder, ikke vist, på overflaten. Effekten fra dampgeneratorenheten 16 leveres gjennom -en rørledning 24, en tiibakeslags-ventil 26, en rørledning .28 og en utløpsdyse 30 inn .i borehullet 4 og den formasjon 10 som. skal behandles. En egnet pumpe 32 er and discussed above. A water line 18, a fuel pipe 30 and an air pipe 22 connect the steam generator unit 16 to suitable supply sources, not shown, on the surface. The power from the steam generator unit 16 is delivered through a pipeline 24, a check valve 26, a pipeline 28 and an outlet nozzle 30 into the borehole 4 and the formation 10 which. must be processed. A suitable pump 32 is
montert ved siden av rørledningen 28 og drives fra overflaten ved hjelp av egnede anordninger, slik som en sugestang 34. Pumpen 32 trekker olje fra borehullet' 4 gjennom en innløpåpning 36 og en rørledning 38, og leverer olje til overflaten gjennom mounted next to the pipeline 28 and driven from the surface by means of suitable devices, such as a suction rod 34. The pump 32 draws oil from the borehole' 4 through an inlet opening 36 and a pipeline 38, and delivers oil to the surface through
en rørledning 40. En egnet pakkeplugg 42. forankrer rørledninge-ne 2 8 og 38 sammen og sørger for å holde utvinningssystemet 2 a pipeline 40. A suitable packing plug 42. anchors the pipelines 2 8 and 38 together and ensures that the extraction system 2
på ønsket plass i borehullet 4 samtidig, som pluggen forsegler borehullet 4 for derved å kunne drive dampen inn i den formasjon 10 som skal behandles. Ytterligere -koblingsanordninger 44 tjener til å holde komponentene sammen for å danne en integrert enhet. at the desired place in the borehole 4 at the same time as the plug seals the borehole 4 in order to thereby be able to drive the steam into the formation 10 to be treated. Additional coupling devices 44 serve to hold the components together to form an integrated unit.
Som vist er- pumpeinntaket 36 posisjonert i umiddelbar nærhet av1 dampdysen 30. Dette arrangement er å foretrekke for hva som vanligvis kalles "huff and puff"-operasjoner, hvor dampgeneratoren 16 og pumpen 32 drivés sekvesentielt. Med dette arrangement vil det trykk som utvikles av dampen drive oljen ut av borehullet 4 og vil følgelig utelukke samtidig pumping mens dampgeneratoren 16 er i drift. Pumpen 32 kan imidlertid igang-settes i samme øyeblikk som dampgeneratoren 16 stopper. Følge-lig kan produksjonen påbegynnes mens formasjonen 10 er ved sin . høyeste temperatur, og hvor oljen har sin laveste viskositet. Følgelig kan et vesentlig kvantumolje pumpes ut i løpet av den tid som tidligere var nødvendig for å overføre og bytte ut utstyr. Videre, siden ingen overføring av-utstyr er nødvendig, As shown, the pump inlet 36 is positioned in the immediate vicinity of the steam nozzle 30. This arrangement is preferable for what is usually called "huff and puff" operations, where the steam generator 16 and the pump 32 are driven sequentially. With this arrangement, the pressure developed by the steam will drive the oil out of the borehole 4 and will consequently preclude simultaneous pumping while the steam generator 16 is in operation. However, the pump 32 can be started at the same moment that the steam generator 16 stops. Accordingly, production can begin while the formation 10 is at its . highest temperature, and where the oil has its lowest viscosity. Consequently, a significant quantity of oil can be pumped out during the time previously required to transfer and replace equipment. Furthermore, since no transfer-off equipment is required,
er det mulig å drive dampgeneratoren 16dg pumpen -32 på alter-nerende basis, slik at fire timers dampbehandling følges opp med' fire timers pumping. is it possible to operate the steam generator 16dg the pump -32 on an alternating basis, so that four hours of steam treatment are followed by four hours of pumping.
Flg. 3 viser et oljeutvinningssystem 2 som er tilsvarende det som er'vist på.fig. 1 bortsett fra at pumpeinntaksledningen 38 er forlenget, hvorved plasseringen av pumpeinntaket 36 er beliggende i en vesentlig avstand under damputløps-dysen .30.Med et slikt arrangement vil den olje som er frigjort av dampbehandlingen fra formasjonen 10,dreneres ned i borehullet 4 rundt pumpeinntaket 36 med det resultat at dampgeneratoren 16 og pumpen 32 kan drives samtidig. Dette tillater utvinning' fra ekstremt vanskelige formasjoner som éllers ikke villr gi fra seg olje ved de tidligere benyttede produksjonsmetoder. Follow 3 shows an oil extraction system 2 which is similar to that shown in fig. 1 except that the pump inlet line 38 is extended, whereby the location of the pump inlet 36 is located at a significant distance below the steam outlet nozzle. 30. With such an arrangement, the oil released by the steam treatment from the formation 10 will drain down into the borehole 4 around the pump inlet 36 with the result that the steam generator 16 and the pump 32 can be operated simultaneously. This allows extraction from extremely difficult formations that would otherwise not yield oil with the previously used production methods.
En' rekke andre variasjoner og modifikasjoner kan selv-følgelig gjøres uten derved å fravike oppfinnelsestanken ifølge foreliggende oppfinnelse. Følgelig skal det klart understrekes at den form'av foreliggende.oppfinnelse som er beskrevet ovenfor og vist i forbindelse med tegningene kun er ment- å illustrere, oppfinnelsen og må ikke betraktes, som begrensende for beskyt-telsesomfanget... A number of other variations and modifications can of course be made without thereby deviating from the inventive idea according to the present invention. Consequently, it must be clearly emphasized that the form of the present invention described above and shown in connection with the drawings is only intended to illustrate the invention and must not be considered as limiting the scope of protection...
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28248881A | 1981-07-13 | 1981-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO822104L true NO822104L (en) | 1983-01-14 |
Family
ID=23081728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO822104A NO822104L (en) | 1981-07-13 | 1982-06-23 | SECONDARY OIL EXTRACTION SYSTEM. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0069827A3 (en) |
| JP (1) | JPS5811291A (en) |
| DK (1) | DK294582A (en) |
| NO (1) | NO822104L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3440907C2 (en) * | 1984-11-09 | 1987-01-22 | WAFIOS Maschinenfabrik GmbH & Co KG, 7410 Reutlingen | Method and device for producing oval chain links from round wire |
| US7832482B2 (en) | 2006-10-10 | 2010-11-16 | Halliburton Energy Services, Inc. | Producing resources using steam injection |
| US8079417B2 (en) * | 2008-08-13 | 2011-12-20 | Conocophillips Company | Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs |
| US9098004B2 (en) | 2012-12-27 | 2015-08-04 | Kao Corporation | Liquid developer |
| CN103775046B (en) * | 2013-11-08 | 2017-01-11 | 中国石油天然气股份有限公司 | Thick oil separate injection and joint production eccentric feedback pump and process method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1703428A (en) * | 1926-02-08 | 1929-02-26 | Karl P Neilsen | Well heating and pumping system |
| US3028916A (en) * | 1958-03-27 | 1962-04-10 | Beehler Vernon D | Oil well heating system |
| US2998069A (en) * | 1958-03-27 | 1961-08-29 | Raymond M Stephens | Oil well heater |
| US2980184A (en) * | 1958-09-22 | 1961-04-18 | Shell Oil Co | Method and apparatus for producing wells |
| US3420301A (en) * | 1966-12-05 | 1969-01-07 | Louisiana Hydrolec Inc | Apparatus for heating and recovering underground oil |
| US4078613A (en) * | 1975-08-07 | 1978-03-14 | World Energy Systems | Downhole recovery system |
| US4185691A (en) * | 1977-09-06 | 1980-01-29 | E. Sam Tubin | Secondary oil recovery method and system |
-
1982
- 1982-03-31 EP EP82102741A patent/EP0069827A3/en not_active Withdrawn
- 1982-06-22 JP JP57106282A patent/JPS5811291A/en active Pending
- 1982-06-23 NO NO822104A patent/NO822104L/en unknown
- 1982-06-30 DK DK294582A patent/DK294582A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0069827A3 (en) | 1984-05-16 |
| EP0069827A2 (en) | 1983-01-19 |
| JPS5811291A (en) | 1983-01-22 |
| DK294582A (en) | 1983-01-14 |
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