| 发明名称 | Agent and composition for oilfield applications | ||
| 摘要 | An agent for oilfield applications capable of being dispersed in water is nanofibrillar cellulose. The nanofibrillar cellulose mixed in water gives shear-thinning behavior to the composition, which is pumped to a subterranean oil-containing formation to aid in oil recovery. | ||
| 申请公布号 | US9200193(B2) | 申请公布日期 | 2015.12.01 |
| 申请号 | US201113575135 | 申请日期 | 2011.01.25 |
| 申请人 | UPM-KYMMENE CORPORATION | 发明人 | Laukkanen Antti;Teirfolk Jan-Erik;Salmela Juha;Lille Martina |
| 分类号 | C09K8/40;C09K8/90;C09K8/514;C09K8/516;C09K8/588;C09K8/70;C08L1/02;C08L1/04;C09K8/10;D21C9/00 | 主分类号 | C09K8/40 |
| 代理机构 | Venable LLP | 代理人 | Venable LLP ;Franklin Eric J. |
| 主权项 | 1. An agent for oilfield applications capable of being dispersed in water, said agent comprising: nanofibrillar cellulose comprising predominantly non-parenchymal cellulose, wherein the nanofibrillar cellulose is made of cellulose raw material or cellulose pulp that is chemically premodified to make the cellulose raw material or cellulose pulp more labile, and wherein the nanofibrillar cellulose is a rheology modifying agent or a viscosifier, both giving a viscosity above 1000 Pa·s at shear rates of 1×E-4−1×E3 l/s when dispersed at concentration of 0.5 wt-% in water. | ||
| 地址 | Helsinki FI | ||