EP0089986B1 - Ausbeutung von ölvorkommen mit rückführung des bohrschutts - Google Patents

Ausbeutung von ölvorkommen mit rückführung des bohrschutts Download PDF

Info

Publication number
EP0089986B1
EP0089986B1 EP82902906A EP82902906A EP0089986B1 EP 0089986 B1 EP0089986 B1 EP 0089986B1 EP 82902906 A EP82902906 A EP 82902906A EP 82902906 A EP82902906 A EP 82902906A EP 0089986 B1 EP0089986 B1 EP 0089986B1
Authority
EP
European Patent Office
Prior art keywords
block
effluent
well
condensates
gaseous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82902906A
Other languages
English (en)
French (fr)
Other versions
EP0089986A1 (de
Inventor
Gérard Chaudot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0089986A1 publication Critical patent/EP0089986A1/de
Application granted granted Critical
Publication of EP0089986B1 publication Critical patent/EP0089986B1/de
Expired legal-status Critical Current

Links

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
    • E21B43/34—Arrangements for separating materials produced by the well
    • E21B43/40—Separation associated with re-injection of separated materials

Definitions

  • the present invention relates to a process intended to maximize the recovery of fluids from liquid hydrocarbon deposits and to facilitate their exploitation with application, in particular, to heavy and / or viscous hydrocarbon deposits, and to hydrocarbon deposits having a high freezing point.
  • crude oils are made up of a wide variety of hydrocarbons, which can range from methane to heavy parafinics, sometimes mixed, in extremely variable amounts, to cyclic or aromatic hydrocarbons, or even to solids, such as asphaltenes associated with metalloid, metal or other atoms, with possible association of non-hydrocarbon chemicals.
  • the exploitation is done by well, and the recovery of the oil in place is a function, more particularly, of the number of wells, their spacings, the speed of withdrawal, and the means used to keep the graying pressure or to move the fluids in place in the deposit towards the withdrawal wells.
  • a heating fluid is injected into the deposit and sometimes, correlatively or not, fluids helping to move the crude oil in the deposit.
  • Another way of proceeding consists in injecting air or an oxidizer in the deposit and causing the combustion of part of the oil in the deposit, and thus benefiting from the effects resulting from this process.
  • US-A-4008764 relates to a method which consists in injecting gas from an external source, saturated with a solvent, in gaseous form, which also comes from an external source. This process therefore requires at least two sources, which increases operating costs.
  • US-A-3,780,805 relates to a process involving a fuel generator which distills the effluent to produce fuel used for equipment.
  • a fuel generator which distills the effluent to produce fuel used for equipment.
  • the use of such a fuel generator complicates the installation and makes it more expensive.
  • the gaseous phase of the effluent does not take place in the production well but in an annex well.
  • the invention therefore aims to eliminate all or part of the drawbacks or hazards mentioned above.
  • the process for producing the hydrocarbon deposit in particular with the aim of improving the recovery of the effluent, of facilitating its transportation to the treatment installations, as well as its treatment, consists in condensing, at least partly, leaving the production well, after separation of the liquid and gaseous phases, the condensable gases from the effluent, even if they represent only a small percentage of the flow rate of the effluent, and reinjecting the condensate, liquid phase, in the above production well, or possibly the other production wells and / or the deposit.
  • this process can also comprise, successively, a reheating of the effluent coming from the well, to a temperature favorable to the separation of the liquid and gaseous phases of the effluent if the latter leaves the well at a temperature unfavorable for separation, the separation of the phases of the effluent in at least one separation unit, the compression, the cooling and possibly the dehydration of the gas phase with recovery of the hydrocarbon condensates and the reinjection of the condensates in the liquid phase , in the well or in the deposit.
  • the invention also relates to an installation for implementing the method according to the invention, this installation comprising at least one well for connecting the river ment to surface installations, at least one effluent heating installation, at least one separator of the gaseous, liquid and solid phases of the effluent, at least one compression-cooling unit allowing partial condensation of the gas phase and optionally a unit for dehydrating the gas phase, with recovery of the hydrocarbon condensates and at least one unit for reinjecting the condensates into the well.
  • block 1 represents the deposit from which the effluent is withdrawn thanks to the production well represented by block 2.
  • the effluent emanating from this well is reheated in at least one reheating unit 3 at a temperature favorable to separation of the liquid and gas phases and the segregation of the oil, water and possibly solid constituents in at least one separation unit 4.
  • the gas phase is then cooled and compressed in one or more stages.
  • the gas during this process, is dehydrated to a pink point such that its residual water content does not generate difficulties in the treatment plants located downstream.
  • the condensates collected at various points in unit 5 are recovered and separated from the water associated therewith in a purifier 6 and optionally stored in an auxiliary storage unit 7.
  • the residual gas recovered at the outlet of unit 5 is then refrigerated in at least one unit 8 using external refrigeration means, at a temperature making it possible to optimize the recovery of light and cold condensates.
  • the light and cold condensates are recovered (block 9) and stored in at least one thermally insulated unit 10.
  • the residual gases are injected into well 2 or into any other well participating in the production of the deposit, directly if their pressure is sufficient, or via at least one additional compression 11 if their pressure is insufficient to be reinjected at the optimum depth provided in the well or wells, or directly in the deposit 1.
  • one or the other or the two units 8 and 11 will not necessarily be installed, all or part of the gases being either sold or used to meet energy or operating or detection fluid, field installations.
  • the condensates recovered in the purifier 6 are then injected into well 2 or into any other well participating in the production of the deposit, directly if their pressure is sufficient, or via at least one pump if their pressure is insufficient to be reinjected at the optimum depth provided in the / or wells, or directly in the deposit.
  • the cold condensates recovered by the units 9 are then injected, mixed or not mixed in whole or in part with the condensates recovered by the purifier 6, after pumping and reheating (block 13), to satisfy the pressure conditions provided for the injection of the condensates recovered by the purifier 6.
  • the start-up of the first wells 2 may possibly be carried out by a charge of light hydrocarbons (block 14), condensed or not, coming from a source external to the wells.
  • the water associated with production, and separated by units 4 and 5 can be eliminated on the surface (block 15), but if this water generates pollution or a gene in the environment, it will be after skimming of the residual oil.
  • block 16 reinjected into / or the deposits 1, in order to maintain the pressure thereof to a certain extent.
  • This residual water can be associated with adjuvants (block 17) modifying its viscosity or causing a swelling effect of the admixture mixture, to move the hydrocarbons in place in the / or the deposits towards the / or producing wells.
  • An advantage of the process according to the invention consists in that by reinjecting into the / or the production wells or directly into the / or the deposits of light, liquid and / or gaseous hydrocarbons, jointly or not, originating from the / or well, with possible external contribution to facilitate certain operations such as starting production of the well (s), a weight reduction effect of the column of fluid in the well (s) is obtained as well as a reduction which can be considerable of the viscosity of the effluent, this in order to improve the produc activity of the well (s) and reduce the difficulties in separating the phases constituting the natural effluent from the wells.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (6)

1. Verfahren zur Förderung von Kohlenwasserstofflagerstätten, insbesondere zum Zwecke einer besseren Rückgewinnung des Abgangs, einer bequemeren Zuführung bis zur Verarbeitungsanlage sowie einer leichteren Verarbeitung, dadurch gekennzeichnet, daß zumindest teilweise am Ausgang der Förderbohrung nach Abscheidung der Flüssig- und Gasphase die kondensierbaren Gase des Abgangs kondensiert werden, auch wenn diese nur einen geringen Prozentsatz des Durchsatzes des Abgangs darstellen, und daß das Kondensat in der Flüssigphase in die Förderbohrung oder gegebenenfalls in andere Förderbohrungen bzw. in die Lagerstätte zurückgeleitet wird.
2. Verfahren nach Anspruch 1, gekennzeichnet durch aufeinanderfolgendes Aufwärmen des Abgangs (Block 3) aus den Bohrungen auf eine Temperatur, die für die Abscheidung der Flüssig-und Gasphase des Abgangs vorteilhaft ist, falls er die Bohrung mit einer für die Abscheidung ungünstigen Temperatur verläßt, durch Phasenabscheiden des Abgangs in zumindest einer Abscheidungseinheit (Block4), durch Kompression, Abkühlen und gegebenenfalls Dehydratisierung der Gasphase (Block 5) bei Rückgewinnung der Kohlenwasserstoffkondensate (Block 8) und der Rückführung der Kondensate in der Gasphase in die Bohrungen (2) oder in die Lagerstätte.
3. Verfahren nach Anspruch 2, gekennzeichnet durch Behandeln des Ölwassers aus der Abscheidung der Gas-, Flüssig- und Feststoff-Phase des Abgangs (Block 4) sowie durch Behandeln des möglicherweise öligen oder durch die Kondensate aus der Dehydratisierung der Gasphase (Block 5) verunreinigten Wassers, so daß das Öl und die verbliebenen Kondensate vom Wasser abgeräumt werden.
4. Verfahren nach einem der vorhergehenden Ansprüche 1 bis 3, gekennzeichnet durch Kühlung oder Refrigerierung der aus der Kompression stammenden Restgase (Block 8), Kühlen und möglicherweise Dehydratisieren der Gasphase (Block 5), die Rückgewinnung der aus der Refrigerierung (Block 9) stammenden kalten Kondensate und Einsprühen in die Bohrung oder Bohrungen (2) bzw. die Lagerstätte (1) nach möglicher Wiederaufwärmung (Block 13).
5. Verfahren nach einem der vorhergehenden Ansprüche 1 bis 4, gekennzeichnet durch ergänzende Kompression der Restgase (Block 11), die nach dem Refrigerieren der Restgase verbleiben (Block 8), und Einsprühen der Restgase in die Bohrungen (2) oder in die Lagerstätte (1).
6. Förderungsanlage für die Durchführung des nach den vorstehenden Ansprüchen gekennzeichneten Verfahrens, gekennzeichnet durch zumindest eine Förderbohrung, mit der die Lagerstätte an die Anlage an der Oberfläche angeschlossen werden kann, zumindest eine Heizanlage des Abgangs, zumindest einen Gas-, Flüssig- und Feststoff-Phasenabscheider des Abgangs, zumindest eine Kompression-Kühleinheit, mit der eine Teilkondensation der Gasphase erzielt wird, und gegebenenfalls eine Dehydratisierungseinheit der Gasphase mit Rückgewinnung der Kohlenwasserstoffkondensate sowie zumindest eine Einheit zum Einsprühen der Kondensate in die Bohrungen.
EP82902906A 1981-10-06 1982-10-05 Ausbeutung von ölvorkommen mit rückführung des bohrschutts Expired EP0089986B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8118797 1981-10-06
FR8118797A FR2514071B1 (fr) 1981-10-06 1981-10-06 Procede de production de gisements d'hydrocarbure avec reinjection d'effluents dans le gisement ou dans le ou les puits et installation pour la mise en oeuvre dudit procede

Publications (2)

Publication Number Publication Date
EP0089986A1 EP0089986A1 (de) 1983-10-05
EP0089986B1 true EP0089986B1 (de) 1985-12-27

Family

ID=9262794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82902906A Expired EP0089986B1 (de) 1981-10-06 1982-10-05 Ausbeutung von ölvorkommen mit rückführung des bohrschutts

Country Status (7)

Country Link
EP (1) EP0089986B1 (de)
BR (1) BR8207912A (de)
DE (1) DE3268173D1 (de)
FR (1) FR2514071B1 (de)
NO (1) NO832008L (de)
OA (1) OA09004A (de)
WO (1) WO1983001273A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545533B2 (fr) * 1983-05-06 1986-12-26 Chaudot Gerard Installation pour la mise en production de gisements d'hydrocarbures avec reinjection d'effluents dans le gisement ou dans le ou les puits et procede pour la mise en oeuvre de cette installation
GB8326964D0 (en) * 1983-10-08 1983-11-09 Miller D P J Downhole tool
GB2235696A (en) * 1989-09-06 1991-03-13 Shell Int Research Method of inhibiting asphalt precipitation in an oil production well
WO1999031198A2 (en) * 1997-12-18 1999-06-24 Dogadin Oleg V Plant for removing carbon dioxide from gases and method for the exploitation of said plant
RU2146758C1 (ru) * 1999-08-09 2000-03-20 Черномырдин Виктор Степанович Способ разработки и обустройства многокупольных газо и/или газоконденсатнонефтяных месторождений, находящихся вблизи магистрального газопровода
NO311103B1 (no) * 2000-02-08 2001-10-08 Jon Grepstad Fremgangsmåte for å lette separasjonen av en råoljeströms oljefase og vannfase
GB2371817A (en) * 2000-05-31 2002-08-07 Ingen Process Ltd Method of providing artificial lift in a well
NO315990B1 (no) * 2000-08-31 2003-11-24 Abb Research Ltd Fremgangsmate og system for injisering av gass i et reservoar
GB2377711A (en) * 2001-07-20 2003-01-22 Ingen Process Ltd Thinning of crude oil in a bore well
CA3024545C (en) 2016-03-30 2020-08-25 Exxonmobile Upstream Research Company Self-sourced reservoir fluid for enhanced oil recovery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180358A (de) * 1935-01-09 1935-10-31 Embru Werke Ag Tisch mit in der Höhe verstellbarer Tischplatte.
US2368748A (en) * 1943-02-19 1945-02-06 Hard Mfg Company Over-bed table
DE2926759A1 (de) * 1979-07-03 1981-01-22 Peter Heckmann Vorrichtung zum verstellen der hoehe eines tisches

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412765A (en) * 1941-07-25 1946-12-17 Phillips Petroleum Co Recovery of hydrocarbons
US3223157A (en) * 1963-04-09 1965-12-14 Exxon Production Research Co Oil recovery process
US3352355A (en) * 1965-06-23 1967-11-14 Dow Chemical Co Method of recovery of hydrocarbons from solid hydrocarbonaceous formations
US3780805A (en) * 1971-09-07 1973-12-25 W Green Viscous oil recovery system
US4008764A (en) * 1974-03-07 1977-02-22 Texaco Inc. Carrier gas vaporized solvent oil recovery method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180358A (de) * 1935-01-09 1935-10-31 Embru Werke Ag Tisch mit in der Höhe verstellbarer Tischplatte.
US2368748A (en) * 1943-02-19 1945-02-06 Hard Mfg Company Over-bed table
DE2926759A1 (de) * 1979-07-03 1981-01-22 Peter Heckmann Vorrichtung zum verstellen der hoehe eines tisches

Also Published As

Publication number Publication date
DE3268173D1 (en) 1986-02-06
OA09004A (fr) 1991-03-31
WO1983001273A1 (fr) 1983-04-14
FR2514071B1 (fr) 1986-09-26
BR8207912A (pt) 1983-09-13
FR2514071A1 (fr) 1983-04-08
NO832008L (no) 1983-06-03
EP0089986A1 (de) 1983-10-05

Similar Documents

Publication Publication Date Title
EP0089986B1 (de) Ausbeutung von ölvorkommen mit rückführung des bohrschutts
JP4050620B2 (ja) 炭化水素貯留地層からの炭化水素の回収方法及びそれを実施するための装置
EP0571257B1 (de) Verfahren zur Behandlung und zum Transport von Erdgas aus einer Förderbohrung
US4223728A (en) Method of oil recovery from underground reservoirs
EP0099765A1 (de) Verfahren zum Fraktionieren von Gemischen durch Elutionschromatographie mit einer überkritischen fluiden Phase und Anlage zur Durchführung dieses Verfahrens
WO1989012728A1 (en) In-well heat exchange method for improved recovery of subterranean fluids with poor flowability
AU2012231266B2 (en) Systems and methods for separating oil and/or gas mixtures
US12031422B2 (en) System and method for recycling miscible NGLs for oil recovery
FR2694785A1 (fr) Méthode et système d'exploitation de gisements pétroliers.
EP0917905B1 (de) Verfahren und diphasige Verdichtungsvorrichtung zum Behandeln eines Erdölproduktes
CA2691399C (fr) Methode de recuperation d'huile ou de bitume par injection d'un fluide de recuperation et d'un agent de diversion
US4181177A (en) Controlling shale oil pour point
FR2495686A1 (fr) Procede d'extraction thermique de petrole par la methode miniere et petrole obtenu par ledit procede
US1762423A (en) Method of transporting petroleum products
KR20230074658A (ko) 메테인 가스를 추출하고, 가스를 클라스레이트로 변환하고, 사용하기 위해 가스를 운반하는 방법 및 시스템
RU2801929C1 (ru) Способ добычи нефти
US4259976A (en) Method for the recovery and transport of the chemical and energy value of light hydrocarbons
WO2024054129A1 (ru) Способ добычи нефти
RU2193910C1 (ru) Способ сбора и подготовки продукции нефтяных и газовых скважин
RU2161249C1 (ru) Способ освоения месторождений тяжелых нефтей и битумов
RU2153128C2 (ru) Система приема и сжигания факельных нефтяных газов
SU855335A1 (ru) Способ транспортировани высоков зкой водонефт ной эмульсии
RU2171951C1 (ru) Способ повышения эффективности освоения газоконденсатно-нефтяного месторождения в регионе с неразвитой транспортной инфраструктурой
RU2171952C1 (ru) Способ повышения эффективности освоения газоконденсатнонефтяного месторождения в регионе с неразвитой транспортной инфраструктурой
US20060113076A1 (en) Substances to stimulate the extraction of crudeoil and a method of processing them

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

17P Request for examination filed

Effective date: 19830603

AK Designated contracting states

Designated state(s): BE DE FR GB NL SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19851227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860131

REF Corresponds to:

Ref document number: 3268173

Country of ref document: DE

Date of ref document: 19860206

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19861031

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
BERE Be: lapsed

Owner name: CHAUDOT GERARD

Effective date: 19861031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19870701

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881122