公开(公告)号：US20200283670A1

公开(公告)日：2020-09-10

申请号：US16759538

申请日：2018-10-23

申请人： Lamberti SPA

发明人： Lorenzo GIARDINI ,  Luigi MERLI ,  Pierangelo PIROVANO ,  Giovanni FLORIDI ,  Giuseppe LI BASSI

IPC分类号： C09K8/035

摘要： Non-aqueous suspension composition of water-soluble polymers and method for treating a subterranean formation comprising the step of placing an aqueous fluid containing the suspension composition into the subterranean formation.

公开(公告)号：US20130281326A1

公开(公告)日：2013-10-24

申请号：US13921030

申请日：2013-06-18

申请人： LAMBERTI SpA

发明人： Luigi MERLI ,  Franscesca GIANI ,  Pierangelo PIROVANO ,  Giovanni Floridi ,  Giuseppe Li Bassi

IPC分类号： C09K8/06

CPC分类号： C09K8/06 ,  C09K2208/12

摘要： The hydration of clays in drilling operations can be inhibited by employing an aqueous based drilling fluid containing from about 0.2 to about 5 wt % of a hydration inhibitor that comprises bis-hexamethylene-triamine, bis-hexamethylene-triamine salts, or mixtures thereof.

摘要翻译： 通过使用含有约0.2至约5重量％的包含双 - 六亚甲基 - 三胺，双 - 六亚甲基 - 三胺盐或其混合物的水合抑制剂的含水基钻井液可以抑制钻井操作中粘土的水化。

公开(公告)号：US20180066172A1

公开(公告)日：2018-03-08

申请号：US15551845

申请日：2016-02-15

申请人： LAMBERTI SPA

发明人： Laura Vigano ,  Luigi MERLI ,  Pierangelo PIROVANO ,  Valentina LANGELLA ,  Mauro RICCABONI ,  Giovanni FLORIDI ,  Giuseppe LI BASSI

IPC分类号： C09K8/035 ,  C09K8/08 ,  C09K8/52 ,  C08B37/00

摘要： Method for inhibiting the swelling and the dispersion of shales in the treatment of subterranean shale formations comprising the use of a cationic tamarind gum and fluids for the treatment of subterranean shale formations comprising a cationic tamarind gum.

公开(公告)号：US20170321103A1

公开(公告)日：2017-11-09

申请号：US15526614

申请日：2015-11-06

申请人： LAMBERTI SPA

发明人： Erik GALLO ,  Luigi MERLI ,  Pierangelo PIROVANO ,  Letizia PRIVITERA ,  Massimo CECCHETTO ,  Giovanni FLORIDI ,  Giuseppe LI BASSI

IPC分类号： C09K8/36 ,  E21B21/00 ,  C09K8/58 ,  C09K8/584

CPC分类号： C09K8/36 ,  C09K8/58 ,  C09K8/584 ,  C09K2208/10 ,  C09K2208/14 ,  C09K2208/34 ,  E21B21/00

摘要： Method for increasing lubricity of a wellbore fluid comprising the following steps: i) preparing a water in oil microemulsion that contains insoluble particles of metal hydroxides and/or metal oxides in the inner aqueous phase, the insoluble particles being synthesized from their salt precursors in the water droplets of the microemulsion; ii) adding to the wellbore fluid the water in oil microemulsion; iii) injecting the wellbore fluid into a subterranean formation and iv) performing the drilling, completion or coiled tubing operations in the subterranean formation.

公开(公告)号：US20170247597A1

公开(公告)日：2017-08-31

申请号：US15507579

申请日：2015-08-06

申请人： LAMBERTI SPA

发明人： Roberto MACCHI ,  Enrico CAVO ,  Lorenzo GIARDINI ,  Angelo CASIRAGHI ,  Luigi MERLI ,  Mauro TENCONI ,  Pierangelo PIROVANO ,  Giovanni FLORIDI ,  Giuseppe LI BASSI

IPC分类号： C09K8/42 ,  C09K8/20 ,  C09K8/512 ,  C09K8/035 ,  C09K8/508

CPC分类号： C09K8/428 ,  C09K8/035 ,  C09K8/20 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/685 ,  C09K8/90 ,  E21B43/26

摘要： Method of treating a portion of a subterranean formation comprising the injection of an aqueous fluid containing a modified polysaccharide bearing ethylenically unsaturated double bonds and an initiator of radical polymerization.