Method for secondary oil recovery 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
EP1309771 B1 2016-05-25 [EP1309771]EP1309771 A4 2005-09-07 [EP1309771]EP1309771 A1 2003-05-14 [EP1309771] / 2016-05-252005-09-072003-05-14
申请号/申请日
2001EP-0964575 / 2001-08-07
发明人
LIEN LARRY ALLEN;
申请人
OSMONICS;
主分类号
IPC分类号
B01D-061/02B01D-063/10B01D-069/12E21B-043/20
摘要
(EP1309771) A method and a system for treating seawater to facilitate secondary recovery of petroleum from a location below a body of saline water by flooding a permeable stratum with the treated water.  The system utilizes a spirally-wound cross flow semipermeable membrane cartridge incorporating a three layer membrane arrangement preferably having nanofiltration characteristics which facilitates treatment of open ocean water by a single pass without any chemical or mechanical pretreatment to result in a liquid stream of desired character that can have greater ionic strength than the input seawater, e.g. at least about 18,000 ppm of chloride ion and less than 50 ppm of sulfate ion.  This surprising objective is obtained even at high operating temperatures, e.g. as high as about 70 DEG C, through the combination of the construction of the feed spacer and the nanofiltration character of the three layer membrane arrangement.  (From WO0212675 A1)
机翻摘要
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地址
代理人
代理机构
;
优先权号
2000BR-0003677 2000-08-07 2001WO-US41595 2001-08-07
主权利要求
(EP1309771) 1. A method for the secondary recovery of petroleum from a location below a body of sea water by flooding a permeable petroleum-bearing stratum, which method comprises treating sea water from said body at a temperature between 22 deg.C and 75 deg.C to remove at least 99% of all divalent anions and to simultaneously increase the chloride ion content of said sea water by at least 10% by pumping said sea water on a single pass through a semi-permeable nanofiltration membrane formed of a polyamide film created by the condensation reaction of a piperazine and an acyl chloride which film is supported upon a porous film of a different polymeric material, and then pumping said treated sea water under pressure into said permeable stratum. 2. The method according to claim 1 wherein said porous supporting film is a polyurethane film 1500-2000 x 10 **-10m (angstroms) thick. 3. The method in accordance with claim 1 wherein sea water at a temperature of 30 deg.C or above is treated in a single pass through said membrane to provide a permeate containing at least 18,000 ppm of chloride ion and less than 50 ppm of sulfate ion. 4. The method according to claim 1 wherein said water is pumped to said membrane at a pressure between 1034 and 1379 KPa (150 and 200 psig) and provides a permeate flux of at least about 815 l/m **2 per day (20 gallons/sq. foot/day). 5. The method according to claim 1 wherein said membrane is present in sheet form as a part of a spirally-wound cartridge with feed spacer material, wherein said seawater being treated is pumped through feed spacers in the form of parallel ribs that provide 3 to 10 axially extending channels per 2.54 cm (inch), which ribs are interconnected by transverse filaments of a height less than one half of said ribs.
法律状态
(EP1309771) LEGAL DETAILS FOR EP1309771  Actual or expected expiration date=2021-08-07    Legal state=ALIVE    Status=GRANTED     Event publication date=2001-08-07  Event code=EP/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=EP EP01964575  Application date=2001-08-07  Standardized application number=2001EP-0964575     Event publication date=2003-05-14  Event code=EP/A1  Event type=Examination events  Application published with search report  Publication country=EP  Publication number=EP1309771  Publication stage Code=A1  Publication date=2003-05-14  Standardized publication number=EP1309771     Event publication date=2003-05-14  Event code=EP/17P  Event indicator=Pos  Event type=Examination events  Request for examination filed Pruefungsantrag gestellt  Effective date of the event=2003-03-05     Event publication date=2003-05-14  Event code=EP/AK  Event indicator=Pos  Event type=Designated states  Designated contracting states: Benannte vertragsstaaten AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR    Event publication date=2003-05-14  Event code=EP/AX  Event indicator=Pos  Event type=Designated states  Extension of the European patent to Request for extension of the european patent to AL LT LV MK RO SI    Event publication date=2004-05-19  Event code=EP/RBV  Event indicator=Pos  Event type=Designated states  Event type=Corrections  Designated contracting states (correction): Benannte vertragsstaaten (korr.) DK GB NL    Event publication date=2005-09-07  Event code=EP/A4  Event indicator=Pos  Event type=Examination events  Supplementary search report Ergaenzender recherchenbericht  Publication country=EP  Publication number=EP1309771  Publication stage Code=A4  Publication date=2005-09-07  Standardized publication number=EP1309771     Event publication date=2005-09-07  Event code=EP/A4  Event indicator=Pos  Event type=Administrative notifications  Supplementary search report Despatch of supplementary search report  Effective date of the event=2005-07-25     Event publication date=2005-09-07  Event code=EP/RIC1  Event type=Classification modifications  Classification (correction) Klassifikation (korr.) IPC: 7E 21B  43/20   A    Event publication date=2005-09-07  Event code=EP/RIC1  Event type=Classification modifications  Classification (correction) Klassifikation (korr.) IPC: 7B 01D  63/10   B    Event publication date=2005-09-07  Event code=EP/RIC1  Event type=Classification modifications  Classification (correction) Klassifikation (korr.) IPC: 7B 01D  61/02   B    Event publication date=2005-09-07  Event code=EP/RIC1  Event type=Classification modifications  Classification (correction) Klassifikation (korr.) IPC: 7B 01D  69/12   B    Event publication date=2007-02-14  Event code=EP/17Q  Event indicator=Pos  Event type=Examination events  First examination report Erster pruefungsbescheid  Effective date of the event=2007-01-15     Event publication date=2016-03-23  Event code=EP/INTG  Event indicator=Pos  Event type=Examination events  Announcement of intention to grant  Effective date of the event=2016-02-26     Event publication date=2016-05-25  Event code=EP/B1  Event indicator=Pos  Event type=Event indicating In Force  Patent specification  Publication country=EP  Publication number=EP1309771  Publication stage Code=B1  Publication date=2016-05-25  Standardized publication number=EP1309771     Event publication date=2016-05-25  Event code=EP/AK  Event indicator=Pos  Event type=Designated states  Designated contracting states: Benannte vertragsstaaten DK GB NL MEMBER STATE LEGAL DETAILS FOR DE  Actual or expected expiration date=2004-06-24    Legal state=DEAD    Status=LAPSED   Corresponding cc:  Designated or member state=DE     Event publication date=2004-06-24  Event code=EP/REG  Event code=DE/8566  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Designated states  Reference to a national code Designated country de not longer valid Vertragsstaat de nicht mehr benannt Corresponding cc:  Designated or member state=DE  MEMBER STATE LEGAL DETAILS FOR DK  Actual or expected expiration date=2017-01-31    Legal state=DEAD    Status=LAPSED   Corresponding cc:  Designated or member state=DK     Event publication date=2017-01-31  Event code=EP/PG25  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Payment or non-payment notifications  Lapsed in a contracting state announced via postgrant inform. from nat. office to EPO LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT  Corresponding cc:  Designated or member state=DK  MEMBER STATE LEGAL DETAILS FOR GB  Actual or expected expiration date=2021-08-07    Legal state=ALIVE    Status=GRANTED   Corresponding cc:  Designated or member state=GB     Event publication date=2016-05-25  Event code=EP/REG  Event code=GB/FG4D  Event indicator=Pos  Event type=Event indicating In Force  Reference to a national code European patent granted Corresponding cc:  Designated or member state=GB     Event publication date=2016-08-30  Event code=EP/PGFP  Event indicator=Pos  Event type=Event indicating In Force  Event type=Payment or non-payment notifications  Postgrant: annual fees paid to national office   Annual fees payment date=2016-08-30     Year of payment of annual fees=16  Corresponding cc:  Designated or member state=GB  MEMBER STATE LEGAL DETAILS FOR NL  Actual or expected expiration date=2016-05-25    Legal state=DEAD    Status=LAPSED   Corresponding cc:  Designated or member state=NL     Event publication date=2016-09-28  Event code=EP/REG  Event code=NL/MP  Event indicator=Neg  Event type=Event indicating Not In Force  Reference to a national code Patent voided (invalid in the netherlands as no translation has been filed) Description in original language not provided Corresponding cc:  Designated or member state=NL   Effective date of the event=2016-05-25     Event publication date=2016-10-31  Event code=EP/PG25  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Payment or non-payment notifications  Lapsed in a contracting state announced via postgrant inform. from nat. office to EPO LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT  Corresponding cc:  Designated or member state=NL
专利类型码
B1A4A1
国别省市代码
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