公开(公告)号：CA2793499A1

公开(公告)日：2011-10-20

申请号：CA2793499

申请日：2011-04-12

Applicant: UNIV TEXAS ,  BASF SE

Inventor： WEERASOORIYA UPALI P ,  POPE GARY A ,  BITTNER CHRISTIAN ,  OETTER GUNTER ,  TINSLEY JACK F ,  SPINDLER CHRISTIAN ,  JURGENSON GABRIELA ALVAREZ ,  VOGEL SOPHIE

IPC: C09K8/584 ,  C09K23/42 ,  E21B43/22

Abstract: Compositions and methods of synthesis of anionic surfactants by alkoxylation of a Guerbet alcohol (GA) having 12 to 36 carbon atoms using butylene oxide, and optionally propylene oxide and/or ethylene oxide followed by the incorporation of a terminal anionic group are described herein. The GA of the present invention is made by a facile and inexpensive method that involves high temperature base catalyzed dimerization of alcohols with 6 to 18 carbon atoms. The large hydrophobe ether surfactants of the present invention find uses in enhanced oil recovery (EOR) applications where it is used for solubilization and mobilization of oil and for environmental cleanup. Further, the hydrophobe alkoxylated GA without anionic terminal group can be used as an ultra- high molecular weight non-ionic surfactant.

公开(公告)号：CA2790159A1

公开(公告)日：2011-09-15

申请号：CA2790159

申请日：2011-03-04

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  OETTER GUENTER ,  TINSLEY JACK ,  SPINDLER CHRISTIAN ,  ALVAREZ-JUERGENSON GABRIELA ,  MAITRO-VOGEL SOPHIE ,  WLOKA VERONIKA ,  GUZMANN MARCUS

IPC: C09K8/584 ,  C11D1/06 ,  C11D1/29 ,  C11D1/34

Abstract: The invention relates to a method for producing crude oil by means of Winsor type III microemulsion flooding wherein an aqueous surfactant formulation which comprises at least one ionic surfactant of general formula R1-O-(CH2C(CH3)HO)m(CH2CH2O)n-XY- M+is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells. The invention also relates to ionic surfactants according to the general formula.

公开(公告)号：CA2768620A1

公开(公告)日：2011-02-17

申请号：CA2768620

申请日：2010-06-14

Applicant: BASF SE

Inventor： SPINDLER CHRISTIAN ,  SCHLEIFER NORBERT ,  BRODT GREGOR

IPC: C09K8/506 ,  C09K8/60 ,  C09K8/74

Abstract: The invention relates to the use of free aromatic acids comprising at least two aromatic ring systems, or at least two acid functionalities, and/or the salts thereof, for influencing stone formations when mining underground petroleum and/or natural gas deposits. The free acids are used in particular when influencing and primarily controlling the inflow of acid in stone formations in a so-called acidizing process. Suitable salts of the indicated aromatic acids serve for reducing the stone permeability and in particular for reducing water inflow. The invention further relates to corresponding methods in addition to said use.

公开(公告)号：MX2010006460A

公开(公告)日：2010-09-28

申请号：MX2010006460

申请日：2008-11-24

Applicant: BASF SE

Inventor： SPINDLER CHRISTIAN ,  ASSMANN ANDREA ,  HUBER UWE

IPC: C04B24/16 ,  C04B24/24 ,  C08F220/02 ,  C08F220/58 ,  C08F222/02 ,  C08F226/00 ,  E21B33/13

Abstract: La invención se refiere a un copolímero que comprende, como componentes monoméricos, (a) por lo menos un compuesto que comprende ácido sulfónico, (b) por lo menos una N-vinilamida que comprende nitrógeno, una acrilamida o metacrilamida, y (c) por lo menos un éter vinílico bifuncional o más altamente funcional; tales copolímeros son particularmente adecuados como accionadores, agentes contra la segregación y agentes de retención de agua, y en conjunto con aditivos en sistemas cementosos así como a base de yeso; tales copolímeros que tienen un peso molecular 40,000 g/mol se pueden usar particularmente como aditivos en la exploración de depósitos de petróleo y gas natural.