申请人:OJI HOLDINGS CORPORATION
公开号:US10703955B2
公开(公告)日:2020-07-07
The object is to provide a subterranean formation processing composition which has a highly stable viscosity against change in temperature and a high water stopping property. A subterranean formation processing composition comprising cellulose fibers wherein the composition contains ultrafine cellulose fibers having 0.14 to 2.5 mmol/g of a substituent is used. The substituent is preferably an anion group, particularly a phosphoric acid group. The present invention relates to various fluids which are used in well processing. The present invention relates to a method for processing a subterranean formation, for example, drilling of an exploratory well or a wildcat, an appraisal well, an exploratory well or an exploration well, a delineation well, a development well, a production well, an injection well, an observation well, and a service well; cementing; fracturing; and a method for producing petroleum resources. The present invention provides also a cellulose fiber-containing composition which is not limited to the subterranean formation processing use.
目的是提供一种对温度变化具有高度稳定粘度和高止水性能的地下地层处理组合物。使用了一种由纤维素纤维组成的地下地层处理组合物,该组合物含有具有 0.14 至 2.5 mmol/g 取代基的超细纤维素纤维。取代基最好是阴离子基团,特别是磷酸基团。本发明涉及油井处理中使用的各种流体。本发明涉及一种处理地下地层的方法,例如钻探井或野猫井、评价井、探井或勘探井、划定井、开发井、生产井、注入井、观察井和服务井;固井;压裂;以及生产石油资源的方法。本发明还提供了一种含纤维素纤维的组合物,该组合物不限于地下地层处理用途。