公开(公告)号：MX2012009398A

公开(公告)日：2012-09-12

申请号：MX2012009398

申请日：2011-01-27

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  NICOLEAU LUC

IPC: C09K8/467 ,  C04B22/00 ,  C04B24/26

Abstract: Se propone el uso de una composición aceleradora de endurecimiento para aglutinantes inorgánicos, que comprende por lo menos un polímero en forma de peine soluble en agua adecuado como plastificante para aglutinantes hidráulicos y partículas de hidrato de silicato de calcio en el desarrollo, explotación y terminación de depósitos subterráneos de petróleo y gas natural y también para pozos profundos. El uso de acuerdo con la invención no solamente acelera el endurecimiento y curado de las suspensiones de cemento sino también acorta el tiempo en el cual la resistencia de gel estático de las suspensiones de cemento curadas se incrementa de 4.88 kg/m2 (100 1b/100 pie2) a 24.4 kg/m2 (500 1b/100 pie2).

公开(公告)号：CA2715588C

公开(公告)日：2012-08-21

申请号：CA2715588

申请日：2009-01-19

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  SETIAWAN TINTON ,  PLANK JOHANN

IPC: C09K8/487 ,  C04B24/16 ,  C04B24/28 ,  C08L61/00 ,  C08L79/02 ,  C09K8/035 ,  E21B43/22

Abstract: An additive based on a polyalkylenimine and a sulphonated formaldehyde-containing condensate and its use as a fluid loss additive in the cementing of wells in the mineral oil and natural gas sector is claimed. Polyethylenimine, polypropylenimine and polybutylenimine are suitable as typical representatives of the polyalkylenimines and may also be derivatised. Preferred condensates are acetone/formaldehyde resins. Those additives according to the invention which are subjected to maturing, in particular by allowing to stand, prior to their use achieve a particularly low fluid loss value.

公开(公告)号：CA2818016A1

公开(公告)日：2012-05-31

申请号：CA2818016

申请日：2011-11-22

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  LANGLOTZ BJORN

IPC: C09K8/584 ,  C08F220/00 ,  C09K8/588

Abstract: Process for petroleum recovery, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer (A) and at least one non-ionic and/or anionic surfactant (B) is injected through at least one injection borehole into a petroleum reservoir and crude oil is taken from the reservoir through at least one production borehole, wherein the water-soluble, hydrophobically associating copolymer comprises at least acrylamide or derivatives thereof, a monomer having anionic groups and also a monomer which can bring about association of the copolymer, and also an aqueous formulation suitable for carrying out the process.

公开(公告)号：DK2227499T3

公开(公告)日：2012-05-29

申请号：DK08868694

申请日：2008-12-05

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  NEUBECKER KARIN

IPC: C08F290/14 ,  C09K8/524

公开(公告)号：AT545667T

公开(公告)日：2012-03-15

申请号：AT08868694

申请日：2008-12-05

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  NEUBECKER KARIN

IPC: C08F290/14 ,  C09K8/524

公开(公告)号：CA2765923A1

公开(公告)日：2011-02-10

申请号：CA2765923

申请日：2010-07-30

Applicant: BASF SE

Inventor： PFEUFFER THOMAS ,  REICHENBACH-KLINKE ROLAND ,  FRIEDRICH STEFAN ,  GUZMANN MARCUS

IPC: C08F220/00 ,  C08F222/00

Abstract: The invention relates to a water soluble, hydrophobic associating copolymer, comprising a monoethylenic unsaturated, water soluble, surface active monomer (a), and a monoethylenic unsaturated, hydrophilic monomer (b) different from monomer (a). The copolymer is produced in the presence of a non-polymerizable tenside and has pronounced thickening properties in aqueous systems.

公开(公告)号：CA2723941A1

公开(公告)日：2009-11-26

申请号：CA2723941

申请日：2008-05-21

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  PLANK JOHANN ,  LANGE PETER ,  KEILHOFER GREGOR

IPC: C08F2/44 ,  C08F292/00 ,  C08J5/00 ,  C09K8/00 ,  C09K8/487

Abstract: The invention relates to a graft copolymer on the basis of a component a), comprising silica, which has been converted using unsaturated silane, and a sulfonic acid-containing polymer component b). The silica used is preferably nanosilica, and the unsaturated silane is an ethylenically unsaturated alkoxy silane. Component b) is represented by a copolymer on the basis of AMPS and a further ethylenically unsaturated monomer. The polymer according to the invention, which generally constitutes a nanocomposite, is excellently suited as an additive in construction chemistry applications and for the development, extraction and completion of underground crude oil and natural gas deposits, wherein the effect thereof as a water retention agent is particularly advantageous for high salinity and elevated temperatures.