Verfahren zur Herstellung von Phosphatidylcholinderivaten
申请人:A. Nattermann & Cie. GmbH
公开号:EP0483459A1
公开(公告)日:1992-05-06
Es wird ein Verfahren zur Herstellung von Phosphatidylcholinderivaten durch Umsetzung von Glycerophosphatidylcholin mit mindestens einem Fettsäureanhydrid unter Anwesenheit eines Pyridin-Katalysators beschrieben. Hierbei wird die Reaktion in einer Schmelze aus dem Glycerophosphatidylcholin, dem mindestens einen Fettsäureanhydrid sowie dem Katalysator durchgeführt.
COMPOSITIONS INCLUDING A PARTICULATE BRIDGING AGENT AND FIBERS AND METHODS OF TREATING A SUBTERRANEAN FORMATION WITH THE SAME
申请人:HALLIBURTON ENERGY SERVICES, INC.
公开号:US20160122618A1
公开(公告)日:2016-05-05
The present invention relates to compositions including a particulate bridging agent and fibers, and methods of treating a subterranean formation with the same. In various embodiments, the present invention provides a method of treating a subterranean formation that includes obtaining or providing a composition including a particulate bridging agent and fibers. The method includes placing the composition in a subterranean formation. The method includes forming within the formation a bridging agent-fiber diverter. The bridging agent-fiber diverter is formed from the composition including the bridging agent and the fibers.