公开(公告)号：US5224988A

公开(公告)日：1993-07-06

申请号：US870296

申请日：1992-04-17

申请人： Rosangela Pirri ,  Yves Huet ,  Alain Donche

发明人： Rosangela Pirri ,  Yves Huet ,  Alain Donche

IPC分类号： C08J3/12 ,  C08J3/03 ,  C08L5/00 ,  C09K8/90

CPC分类号： C09K8/905 ,  C08J3/03 ,  C08L5/00 ,  C08J2305/00 ,  Y10S507/935 ,  Y10S507/936

摘要： Process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after drying of the coagulum which are greatly superior to those of a powder treated after drying with the same quantity of surfactant or of a powder in solution treated with this same quantity of surfactant.

摘要翻译： 用于提高硬化葡聚糖粉末的分散性和过滤性的方法，其中将表面活性剂掺入凝结聚合物中。 根据该方法获得的粉末具有在用相同量的表面活性剂处理的溶液中用相同量的表面活性剂或粉末在干燥后干燥后的分散性和过滤性大大优于用干燥后的粉末处理的粉末。

公开(公告)号：US5323857A

公开(公告)日：1994-06-28

申请号：US8307

申请日：1993-01-25

申请人： Rosangela Pirri ,  Yves Huet ,  Alain Donche

发明人： Rosangela Pirri ,  Yves Huet ,  Alain Donche

IPC分类号： C08J3/12 ,  C08J3/03 ,  C08L5/00 ,  C09K8/90 ,  E21B43/22

CPC分类号： C09K8/905 ,  C08J3/03 ,  C08L5/00 ,  C08J2305/00 ,  Y10S507/935 ,  Y10S507/936

摘要： The present invention is directed to a process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after drying of the coagulum which are greatly superior to those of a powder treated after drying with the same quantity of surfactant or of a powder in solution treated with this same quantity of surfactant. The present invention is also directed to methods for preventing the sudden rush of well water into the strata of petroleum fields, to methods for modifying the injection profile, and to methods for improved hydrocarbon recovery from petroleum fields.

摘要翻译： 本发明涉及提高硬化葡聚糖粉末的分散性和过滤性的方法，其中表面活性剂掺入凝结聚合物中。 根据该方法获得的粉末具有在用相同量的表面活性剂处理的溶液中用相同量的表面活性剂或粉末在干燥后干燥后的分散性和过滤性大大优于用干燥后的粉末处理的粉末。 本发明还涉及用于防止井水突然涌入石油地层的方法，改进喷射曲线的方法，以及用于改善从石油田中回收烃的方法。

公开(公告)号：US4637294A

公开(公告)日：1987-01-20

申请号：US681467

申请日：1984-12-14

申请人： Yves Huet ,  Christian Perichon

发明人： Yves Huet ,  Christian Perichon

IPC分类号： G05B9/02 ,  F15B20/00 ,  G05D16/00 ,  G21D1/04 ,  F15B13/00 ,  F01L15/00 ,  F16K37/00 ,  G21C13/00

CPC分类号： F15B20/001 ,  Y10T137/87917

摘要： The invention relates to a device for controlling the supply of fluid under pressure to a hydraulic circuit as a function of the state of locking or unlocking of two mechanical members.The device comprises two interconnected jacks (1,2), the rods (3,4) of which are integrally fixed to mechanical members. The piston (30) of the first jack (1) separates the chamber (35) of the latter into two parts (35a,35b). The piston (31) of the second jack (2) divides the chamber (35') of the latter into three parts (35'a,35'band 35'c). The inlet chambers (35a and 35'a) are connected to pipes for supplying fluid under pressure (10a,10b), and the outlet chambers (35b and 35'c) are connected to a depressurizing pipe (20). According to the position of the pistons (30 and 31), which itself depends on the state of locking or unlocking of the rods (3,4), an interconnecting pipe (23) and a pipe (25) supplying the hydraulic circuit with fluid under pressure communicate with one chamber or another. The supply of the hydraulic circuit by means of the pipe (25) is possible only if both rods (3,4) are unlocked.The invention is used, in particular, for supplying the circuit controlling an emergency seal of a primary pump of a pressurized-water nuclear reactor.

摘要翻译： 本发明涉及一种用于根据两个机械构件的锁定或解锁状态来控制在压力下向液压回路供给流体的装置。 该装置包括两个互连的千斤顶（1,2），其杆（3,4）一体地固定在机械构件上。 第一千斤顶（1）的活塞（30）将后者的腔室（35）分成两部分（35a，35b）。 第二千斤顶（2）的活塞（31）将后者的腔室（35'）分成三部分（35'a，35'band 35'c）。 入口室（35a和35'a）连接到用于在压力（10a，10b）下供应流体的管道，并且出口室（35b和35'c）连接到减压管道（20）。 根据活塞（30和31）的位置，其本身取决于杆（3,4）的锁定或解锁的状态，将液压回路供给流体的互连管（23）和管（25） 在压力下与一个室或另一个室相通。 只有当两个杆（3,4）被解锁时，才能通过管道（25）供应液压回路。 本发明特别用于供应控制加压水核反应堆的初级泵的紧急密封的回路。