公开(公告)号：US20170226398A1

公开(公告)日：2017-08-10

申请号：US15322345

申请日：2015-06-29

申请人： OJI HOLDINGS CORPORATION

发明人： Takayuki SHIMAOKA ,  Yuichi NOGUCHI ,  Ikue HOMMA ,  Mitsuru TSUNODA

IPC分类号： C09K8/10 ,  C09K8/42 ,  C09K8/575 ,  C09K8/90 ,  C09K8/72 ,  C09K8/40 ,  C09K8/68

摘要： 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.

公开(公告)号：US20200256014A1

公开(公告)日：2020-08-13

申请号：US16863899

申请日：2020-04-30

申请人： OJI HOLDINGS CORPORATION

发明人： Eiichi MIKAMI ,  Mitsuru TSUNODA ,  Hayato FUSHIMI

IPC分类号： D21F5/00 ,  D21H11/18 ,  D21H19/00 ,  D21F5/04 ,  D21F5/14

摘要： The present invention was accomplished in order to provide a method for producing a sheet containing fine fibers, which enables production of a sheet containing fine fibers without producing wrinkles. The present invention provides a method for producing a sheet containing fine fibers comprising a coating step of coating a dispersion containing fine fibers having a fiber diameter of 1000 nm or smaller on a base material, and a drying step of drying the dispersion containing fine fibers coated on the base material to form a sheet containing fine fibers.

公开(公告)号：US20170226407A1

公开(公告)日：2017-08-10

申请号：US15519229

申请日：2015-10-13

申请人： Oji Holdings Corporation

发明人： Ikue HOMMA ,  Takayuki SHIMAOKA ,  Moe MIZUKAMI ,  Takuri OZAKI ,  Yuichi NOGUCHI ,  Mitsuru TSUNODA

IPC分类号： C09K8/60 ,  C08K3/24 ,  E21B43/28 ,  C09K8/10 ,  D01F2/24

摘要： An object of the present invention is to provide a salt water thickener that uniformly (favorably) disperses ultrafine cellulose fibers even in a liquid containing a salt (electrolyte). The salt water thickener comprises ultrafine cellulose fibers and a water-soluble polymer and can thereby uniformly disperse the ultrafine cellulose fibers even in a liquid containing a salt. The salt water thickener of the present invention is uniformly dispersed even in a liquid containing a salt and therefore exerts a high viscosity. The salt water thickener of the present invention can also be used as an additive for a fluid. The salt water thickener of the present invention can be used for purposes, for example, subterranean formation processing.

公开(公告)号：US20170226399A1

公开(公告)日：2017-08-10

申请号：US15322382

申请日：2015-06-29

申请人： Oji Holdings Corporation

发明人： Takayuki SHIMAOKA ,  Yuichi NOGUCHI ,  Ikue HOMMA ,  Mitsuru TSUNODA

IPC分类号： C09K8/10 ,  C09K8/68 ,  C09K8/90 ,  E21B43/26 ,  C09K8/575 ,  C09K8/42 ,  E21B21/00 ,  C09K8/40 ,  C09K8/72

CPC分类号： C09K8/10 ,  C04B18/24 ,  C08B5/00 ,  C08B11/12 ,  C08L1/16 ,  C08L1/286 ,  C09K8/035 ,  C09K8/40 ,  C09K8/42 ,  C09K8/424 ,  C09K8/467 ,  C09K8/514 ,  C09K8/516 ,  C09K8/528 ,  C09K8/536 ,  C09K8/5758 ,  C09K8/68 ,  C09K8/70 ,  C09K8/725 ,  C09K8/74 ,  C09K8/90 ,  C09K8/92 ,  C09K2208/08 ,  C09K2208/10 ,  C09K2208/12 ,  C09K2208/28 ,  C09K2208/32 ,  E21B21/00 ,  E21B33/14 ,  E21B43/26 ,  Y02W30/97

摘要： An object is to provide a dispersion of ultrafine cellulose fibers having a high thickening effect and a gelling function. There is provided a subterranean formation processing composition comprising ultrafine cellulose fibers, which has a haze value of 1.0% to 50%, when the composition is suspended in water such that the solid concentration of cellulose fibers is 0.2% by mass. The composition of the present invention can be used as an additive to the fluid at the time of the processing of subterranean formation, especially the processing of the well. The present invention provides also various fluids which are used in well processing. The present invention provides 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.

公开(公告)号：US20160130757A1

公开(公告)日：2016-05-12

申请号：US14895359

申请日：2014-05-21

申请人： OJI HOLDINGS CORPORATION

发明人： Eiichi MIKAMI ,  Mitsuru TSUNODA ,  Hayato FUSHIMI

IPC分类号： D21F5/00 ,  D21F5/14

摘要： The present invention was accomplished in order to provide a method for producing a sheet containing fine fibers, which enables production of a sheet containing fine fibers without producing wrinkles. The present invention provides a method for producing a sheet containing fine fibers comprising a coating step of coating a dispersion containing fine fibers having a fiber diameter of 1000 nm or smaller on a base material, and a drying step of drying the dispersion containing fine fibers coated on the base material to form a sheet containing fine fibers.

摘要翻译： 本发明是为了提供含有细纤维的片材的制造方法而实现的，其能够生产含有细纤维的片材而不产生皱纹。 本发明提供一种含有细纤维的片材的制造方法，其特征在于，在基材上涂布含有纤维直径为1000nm以下的细纤维的分散体的涂布工序，干燥含有细纤维的分散体的干燥工序 在基材上形成含有细纤维的片材。