公开(公告)号：WO2015200665A1

公开(公告)日：2015-12-30

申请号：PCT/US2015/037743

申请日：2015-06-25

Applicant: IMERYS OILFIELD MINERALS, INC.

Inventor： STEPHENSON, Christopher ,  BOISSON, Gregory ,  MARTINEZ, Roberto, Boehringer ,  SCHILL, Eric ,  BRIDGEMOHAN, Darrel

IPC: C09K8/74

CPC classification number: C09K8/80 ,  C04B33/04 ,  C04B33/1305 ,  C04B33/131 ,  C04B33/32 ,  C04B35/14 ,  C04B35/62695 ,  C04B35/634 ,  C04B35/63416 ,  C04B35/638 ,  C04B35/64 ,  C04B38/009 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B2235/5427 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/94 ,  C04B2235/96 ,  E21B43/267 ,  C04B38/0074

Abstract: A proppant composition may include at least about 50 wt% total silica and up to about 50 wt% total alumina and a connected porosity greater than or equal to about 5%, A proppant precursor composition may include an alumina- or aluminosilicate- containing material and diatomaceous earth, wherein the diatomaceous earth may be greater than or equal to about 25 wt%. A method of making a proppant may include mixing an alumina- or aluminosilicate-containing material and diatomaceous earth to form a precursor composition, pelletizing the precursor composition, and sintering the pelletized precursor composition to form a sintered proppant having a connected porosity greater than or equal to about 5%. A method of treating a fracture site may include delivering a sintered proppant including an active agent to a well site, and dispersing the active agent from the sintered proppant within the well site.

Abstract translation: 支撑剂组合物可以包括至少约50重量％的总二氧化硅和至多约50重量％的总氧化铝和连接的孔隙率大于或等于约5％。支撑剂前体组合物可以包括含氧化铝或含铝硅酸盐的材料和 硅藻土，其中硅藻土可以大于或等于约25重量％。 制备支撑剂的方法可以包括将含氧化铝或含硅铝酸盐的材料和硅藻土混合以形成前体组合物，造粒前体组合物，并烧结造粒的前体组合物以形成具有连接孔隙率大于或等于 至约5％。 处理断裂部位的方法可以包括将包含活性剂的烧结支撑剂输送到井位，以及将活性剂从烧结的支撑剂中分散到井内。