公开(公告)号：WO2013048860A1

公开(公告)日：2013-04-04

申请号：PCT/US2012/056283

申请日：2012-09-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  SANDERS, Aaron W. ,  ABBAS, Sayeed ,  MAYNARD, Shawn ,  MILLER, Matthew

Inventor： SANDERS, Aaron W. ,  ABBAS, Sayeed ,  MAYNARD, Shawn ,  MILLER, Matthew

IPC: C09K8/584 ,  C09K8/594 ,  C08G65/26

CPC classification number: E21B43/164 ,  C08G65/2609 ,  C08G65/2663 ,  C09K8/584 ,  C09K8/594 ,  E21B43/166

Abstract: The present disclosure provides methods of using a nonionic surfactant for enhanced oil recovery, where the nonionic surfactant is prepared with a double metal cyanide catalyst. The present disclosure also provides for an emulsion that includes carbon dioxide, a diluent and the nonionic surfactant.

Abstract translation: 本公开提供了使用非离子表面活性剂来提高油采收率的方法，其中用双金属氰化物催化剂制备非离子表面活性剂。 本公开还提供了包含二氧化碳，稀释剂和非离子表面活性剂的乳液。

公开(公告)号：WO2014193731A1

公开(公告)日：2014-12-04

申请号：PCT/US2014/039145

申请日：2014-05-22

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： FRATTARELLI, David L. ,  ABBAS, Sayeed ,  KNIGHT, Troy E. ,  SANDERS, Aaron W. ,  TUCKER, Christopher J. ,  WOELFLE-GUPTA, Caroline

IPC: C09K8/594

CPC classification number: C09K8/584 ,  C09K8/594 ,  E21B43/168

Abstract: This invention relates to a foam-forming composition having good low temperature stability and method of use thereof for enhanced oil recovery. Said foam-forming composition comprises an anionic sulfonate surfactant, preferably an alpha-olefin sulfonate, a alkyl ether solvent, and water and is preferably stable to at least -5C. A preferred alkyl ether solvent has the formula C8H18O3, C8H16O3, or mixtures thereof. Preferred alpha-olefin sulfonate have 10 to 18 carbons, preferably 12 carbons. A preferred method for recovering oil from a reservoir comprises the periodic injection of gas and said foam-forming composition into the reservoir and contacting the oil in the reservoir with the foam so as to assist in the recovery of oil from the reservoir.

Abstract translation: 本发明涉及具有良好的低温稳定性的发泡组合物及其用于提高油回收率的方法。 所述发泡组合物包含阴离子磺酸盐表面活性剂，优选α-烯烃磺酸盐，烷基醚溶剂和水，并且优选稳定至少至-5℃。 优选的烷基醚溶剂具有式C 8 H 18 O 3，C 8 H 16 O 3或其混合物。 优选的α-烯烃磺酸盐具有10至18个碳，优选12个碳。 从储存器中回收油的优选方法包括将气体和所述形成泡沫的组合物定期注入储存器中并使储存器中的油与泡沫接触，以帮助从储存器回收油。

公开(公告)号：WO2012170835A1

公开(公告)日：2012-12-13

申请号：PCT/US2012/041579

申请日：2012-06-08

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ABBAS, Sayeed ,  SANDERS, Aaron W.

Inventor： ABBAS, Sayeed ,  SANDERS, Aaron W.

IPC: C09K8/584 ,  C09K8/594

CPC classification number: C09K8/584 ,  C09K8/594 ,  C09K8/703 ,  E21B43/164 ,  E21B43/166

Abstract: Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of -3 °C to -54 °C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.

Abstract translation: 本公开的实施方案包括具有非离子表面活性剂和倾点下降剂的改性非离子表面活性剂制剂，其中改性非离子表面活性剂制剂的倾点为-3℃至-54℃。 在一个或多个实施方案中，可将改性的非离子表面活性剂制剂引入二氧化碳流中，其中将二氧化碳和改性的非离子表面活性剂制剂的流量注入含油储存器。 在一个或多个实施方案中，在含油储存器中形成二氧化碳和非离子表面活性剂的乳液，其中使用倾点下降剂在形成乳液时提供最小的干扰。

公开(公告)号：WO2011153466A3

公开(公告)日：2011-12-08

申请号：PCT/US2011/039119

申请日：2011-06-03

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  SANDERS, Aaron W. ,  MANN, Terry A.

Inventor： SANDERS, Aaron W. ,  MANN, Terry A.

IPC: E21B43/16 ,  C09K8/594

Abstract: A method of enhancing oil recovery by providing a mobile surfactant injection system including a storage tank, means for injecting surfactant into a scCO 2 stream, and a feedback control for maintaining a constant concentration of surfactant in a gas stream, the method including the steps of creating a fluid comprising the surfactant and the injection gas, and injecting the fluid into the oil field strata.

公开(公告)号：WO2017058474A1

公开(公告)日：2017-04-06

申请号：PCT/US2016/050458

申请日：2016-09-07

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KNIGHT, Troy E. ,  ABOELELLA, Nermeen W. ,  ABBAS, Sayeed ,  SANDERS, Aaron W.

IPC: C07H15/04 ,  C07H15/08 ,  C07H1/00 ,  C11D1/66

CPC classification number: C07H15/04 ,  C07H1/00 ,  C07H15/08

Abstract: Prepare a branched alcohol-based sugar surfactant by: (a) providing an ether alcohol and a fully acetylated sugar where the ether alcohol has the structure of Structure (I); (b) coupling the ether alcohol with the acetylated sugar in the presence of a Lewis acid catalyst to form a branched glucoside acetate; and (c) deprotecting the glucoside acetate by removing the acetate moieties and replacing them with hydrogen atoms in the presence of a base to form a surfactant having the structure (II).

Abstract translation: 通过以下方法制备支链醇基糖表面活性剂：（a）提供醚醇和完全乙酰化糖，其中醚醇具有结构（I）的结构; （b）在路易斯酸催化剂存在下将醚醇与乙酰化糖偶联以形成支链葡萄糖苷乙酸酯; 和（c）通过除去乙酸部分并在碱的存在下用氢原子代替它们去除保护葡萄糖苷乙酸酯以形成具有结构（II）的表面活性剂。

公开(公告)号：WO2013181499A1

公开(公告)日：2013-12-05

申请号：PCT/US2013/043548

申请日：2013-05-31

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： ABBAS, Sayeed ,  ELOWE, Paul R. ,  SANDERS, Aaron W. ,  FALCONE, Susan

IPC: C09K8/584 ,  C09K8/594 ,  C11D1/722

CPC classification number: C09K8/584 ,  C09K8/594 ,  E21B43/164 ,  Y02P20/544

Abstract: Embodiments of the present disclosure are directed towards oil recovery compositions. As an example, an oil recovery composition can include a dimeric non- ionic surfactant and carbon dioxide.

Abstract translation: 本公开的实施方案涉及采油组合物。 作为示例，油采收组合物可以包括二聚非离子表面活性剂和二氧化碳。