DK181100B1

DK181100B1 - Biodegradable demulsifiers

Info

Publication number: DK181100B1
Application number: DKPA202070494A
Authority: DK
Inventors: Anne COLE Rachael; Nordvik Tore
Original assignee: Schlumberger Norge As
Priority date: 2018-01-22
Filing date: 2020-07-17
Publication date: 2022-12-13
Also published as: DK202070494A1; NO20200842A1; WO2019144086A1

Claims

DK 181100 B1 24 Patentkrav

1. Fremgangsmåde til brydning af en emulsion, hvor fremgangsmåden omfat- ter: at bringe en emulsion i kontakt med en demulgator, hvor demulgatoren er en dendrimer, der er funktionaliseret med et carboxylsyrederivat udvalgt fra grup- pen af polyoxyalkylenalkylethercarboxylsyrer; og at separere emulsionen i to forskellige faser.

2. Fremgangsmåde ifølge krav 1, hvor dendrimeren er udvalgt fra gruppen af polyesterpolyoler.

3. Fremgangsmåde ifølge krav 1, hvor den funktionaliserede dendrimer har en funktionaliseringsgrad på mindst 50 %.

4. Fremgangsmåde ifølge krav 1, hvor den funktionaliserede dendrimer har mindst en terminal hydroxylgruppe, der er esterificeret af carboxylsyrederiva- tet.

5. Fremgangsmåde ifølge krav 1, hvor alkylen har op til 24 carbonatomer.

6. Fremgangsmåde ifølge krav 5, hvor alkylen er udvalgt fra gruppen af line- ære, forgrenede, mættede og umættede alkylgrupper.

7. Fremgangsmåde ifølge krav 1, hvor polyoxyalkylenalkylethercarboxylsy- rerne har mindst en oxyalkylenenhed.

8. Fremgangsmåde ifølge krav 7, hvor oxyalkylenenhederne er udvalgt fra gruppen af oxyethylen, oxypropylen, oxybutylen og kombinationer deraf.

9. Fremgangsmåde ifølge et af kravene 1-8, hvor emulsionen er et carbonhy- dridfluid, der er produceret under ekstraktion af carbonhydrider fra en brønd, råolie, et råoliekondensat eller en kombination deraf.

10. Sammensætning omfattende:

DK 181100 B1 en demulgator, hvor demulgatoren er en dendrimer, der er funktionaliseret med en polyoxyalkylenalkylethercarboxylsyre med mindst en oxyalkylen- enhed.

Application No. SEARCH REPORT - PATENT PP PA 2020 70494

1.U] Certain claims were found unsearchable (See Box No. I).

2.[] Unity of invention is lacking prior to search (See Box No. ID. A. CLASSIFICATION OF SUBJECT MATTER B01D 17/04, BO1D 17/05, CO8G 63/91, CO9K 8/035, C10G 33/04 (all version 2006.01) According to International Patent Classification (IPC) B. FIELDS SEARCHED PCT-minimum documentation searched (classification system followed by classification symbols) B01D, CO8G, CO9K, C10G Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched DK, NO, SE, FI: IPC-classes as above. Electronic database consulted during the search (name of database and, where practicable, search terms used) EPODOC, WPI, FULL TEXT PATENTS ENGLISH, GERMAN, XPESP C. DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant for claim No. X US 2067100002 A1 (LEINWEBER D. et al.) 2007.05.03. See [0001], 1-11

[0009], [0011], [0014], [0017] X WO 2016073574 A1 (M-I L.L.C et al.) 2016.05.12. See [0008] and claim 3 1-4, 10-11 X WO 2017192658% AI (M-ILL C et al.) 2017.11.09. See claim 1, [0022] and 1-4, 10-11

[0023] [J Further documents are listed in the continuation of Box €. + Special categories of cited documents: "pr Document published prior to the filing date but later than the "A" — Document defining the general state of the art which is not priority date claimed. considered to be of particular relevance. "TT" Document not in conflict with the application but cited to npn Document cited in the application. understand the principle or theory underlying the invention. "E" Earlier application or patent but published on or after the filing date. | x Document of particular relevance; the claimed invention cannot be . . I. considered novel or cannot be considered to involve an inventive "" Document which may throw doubt on priority claim(s) or which is step when the document is taken alone cited to establish the publication date of another citation or other won . Co . . special reason (as specified). Y Document of particular relevance; the claimed invention cannot be . . oo considered to involve an inventive step when the document is "O" Document referring to an oral disclosure, use, exhibition or other combined with one or more other such documents. such means. combination being obvious to a person skilled in the art. "&" Document member of the same patent family. Danish Patent and Trademark Office Date of completion of the search report Helgeshøj Allé 81 05 May 2021 DK-2630 Taastrup Denmark Authorized officer Bodil Hasling Telephone No. +45 4350 8000 Facsimile No. +45 4350 8001 Telephone No. +45 43 50 83 75 January 2019 1

Application No.

SEARCH REPORT - PATENT bprication =o PA 2020 70494 C (Continuation). DOCUMENTS CONSIDERED TO BE RELEVANT Citation of document, with indication, where appropriate, of the relevant passages Relevant for claim No.

January 2019 2

Application No. SEARCH REPORT - PATENT PA 2020 70494 Box No. I Observations where certain claims were found unsearchable This search report has not been established in respect of certain claims for the following reasons:

1.[] Claims Nos.: because they relate to subject matter not required to be searched, namely:

2. U] Claims Nos.: because they relate to parts of the patent application that do not comply with the prescribed requirements to such an extent that no meaningful search can be carried out, specifically:

3. I Claims Nos. because of other matters, Box No. II Observations where unity of invention is lacking prior to the search The Danish Patent and Trademark Office found multiple inventions in this patent application, as follows: January 2019 3

EE SEARCH REPORT - PATENT Application No. PA 2020 70494

SUPPLEMENTAL BOX Continuation of Box [.] January 2019 4