公开(公告)号：US09394764B2

公开(公告)日：2016-07-19

申请号：US13638598

申请日：2011-03-29

申请人： Stefano Favilli ,  Giacinto Leitempergher ,  Luciano Scibola

发明人： Stefano Favilli ,  Giacinto Leitempergher ,  Luciano Scibola

IPC分类号： F02C6/18 ,  E21B41/00 ,  F01D15/00 ,  F03B13/10 ,  F03G7/04 ,  F02C1/02 ,  F17D1/075 ,  F02C1/00

CPC分类号： E21B41/0085 ,  F01D15/00 ,  F02C1/00 ,  F02C1/02 ,  F03B13/10 ,  F03G7/04 ,  F05B2220/602 ,  F05D2220/62 ,  F17D1/075 ,  Y02B10/50 ,  Y02E10/22

摘要： A method and an apparatus (100) for reducing the pressure of a natural gas (2) at a wellhead of a natural gas field. The method provides prearranging an energy recovery expansion device (20), which comprises a stator and a rotor mechanically connected with a power generator (29), and a gas passageway between the rotor and the stator, and conveying the natural gas into the passageway of the energy recovery expansion device (24) to cause a rotation of the rotor and the expansion of the gas, the pressure being reduced from the extraction pressure (P1) to the use pressure (P2), which makes it possible to obtain an electric power (W) during the expansion, adapted to satisfy the energy requirements of the gas extraction unit, in particular of an offshore platform, without installing local electric generators. In order to allow a reliable operation of a recovery expansion device, such as a turbine, a means is provided for finely separating solid and liquid matter present in the gas, as well as a means (7) for conditioning the gas entering the expansion device, which may comprise a feeding means (12) of an additive into the gas (3), said additive adapted to decrease the formation temperature of the solid, and, in an advantageous way in case of higher amount of water, a means for heating the gas such that the temperature is maintained above the formation temperature of the solid.

摘要翻译： 一种用于降低天然气场的井口处的天然气（2）的压力的方法和装置（100）。 该方法提供了一种能量回收膨胀装置（20）的预先布置，其包括定子和与发电机（29）机械连接的转子以及转子和定子之间的气体通道，并将天然气输送到 所述能量回收膨胀装置（24）使所述转子旋转和所述气体膨胀，所述压力从所述提取压力（P1）降低到所述使用压力（P2），从而能够获得电力 （W），适于满足气体提取单元，特别是海上平台的能量需求，而无需安装本地发电机。 为了允许诸如涡轮机的回收膨胀装置的可靠运行，提供了用于细分存在于气体中的固体和液体物质的装置，以及用于调节进入膨胀装置的气体的装置（7） ，其可以包括向气体（3）中的添加剂的进料装置（12），所述添加剂适于降低固体的形成温度，并且在有更多的水的情况下以有利的方式加热加热装置 气体使得温度保持在固体的形成温度以上。

公开(公告)号：US20130015669A1

公开(公告)日：2013-01-17

申请号：US13638598

申请日：2011-03-29

申请人： Stefano Favilli ,  Giacinto Leitempergher ,  Luciano Scibola

发明人： Stefano Favilli ,  Giacinto Leitempergher ,  Luciano Scibola

IPC分类号： F15B21/00

CPC分类号： E21B41/0085 ,  F01D15/00 ,  F02C1/00 ,  F02C1/02 ,  F03B13/10 ,  F03G7/04 ,  F05B2220/602 ,  F05D2220/62 ,  F17D1/075 ,  Y02B10/50 ,  Y02E10/22

摘要： A method and an apparatus (100) for reducing the pressure of a natural gas (2) at a wellhead of a natural gas field. The method provides prearranging an energy recovery expansion device (20), which comprises a stator and a rotor mechanically connected with a power generator (29), and a gas passageway between the rotor and the stator, and conveying the natural gas into the passageway of the energy recovery expansion device (24) to cause a rotation of the rotor and the expansion of the gas, the pressure being reduced from the extraction pressure (P1) to the use pressure (P2), which makes it possible to obtain an electric power (W) during the expansion, adapted to satisfy the energy requirements of the gas extraction unit, in particular of an offshore platform, without installing local electric generators. In order to allow a reliable operation of a recovery expansion device, such as a turbine, a means is provided for finely separating solid and liquid matter present in the gas, as well as a means (7) for conditioning the gas entering the expansion device, which may comprise a feeding means (12) of an additive into the gas (3), said additive adapted to decrease the formation temperature of the solid, and, in an advantageous way in case of higher amount of water, a means for heating the gas such that the temperature is maintained above the formation temperature of the solid.

摘要翻译： 一种用于降低天然气场的井口处的天然气（2）的压力的方法和装置（100）。 该方法提供了一种能量回收膨胀装置（20）的预先布置，其包括定子和与发电机（29）机械连接的转子以及转子和定子之间的气体通道，并将天然气输送到 所述能量回收膨胀装置（24）使所述转子旋转和所述气体膨胀，所述压力从所述提取压力（P1）降低到所述使用压力（P2），从而能够获得电力 （W），适于满足气体提取单元，特别是海上平台的能量需求，而无需安装本地发电机。 为了允许诸如涡轮机的回收膨胀装置的可靠运行，提供了用于细分存在于气体中的固体和液体物质的装置，以及用于调节进入膨胀装置的气体的装置（7） ，其可以包括向气体（3）中的添加剂的进料装置（12），所述添加剂适于降低固体的形成温度，并且在有更多的水的情况下以有利的方式加热加热装置 气体使得温度保持在固体的形成温度以上。

公开(公告)号：US20130035534A1

公开(公告)日：2013-02-07

申请号：US13638599

申请日：2011-03-30

申请人： Stefano Favilli ,  Luciano Scibola ,  Giacinto Leitempergher

发明人： Stefano Favilli ,  Luciano Scibola ,  Giacinto Leitempergher

IPC分类号： C07C7/14

CPC分类号： B01D53/002 ,  B01D53/265 ,  B01D2256/24 ,  B01D2257/702 ,  B01D2257/80 ,  C10G5/06 ,  C10G2300/1025 ,  C10L3/106 ,  C10L3/12 ,  F25J3/061 ,  F25J3/0635 ,  F25J3/064 ,  F25J2205/20 ,  F25J2230/08 ,  F25J2230/20 ,  F25J2230/32 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2240/40 ,  F25J2245/02 ,  F25J2270/90 ,  F25J2290/42

摘要： A method for separating methane from at least one hydrocarbon with two or more carbon atoms in a substantially gaseous fluid, containing more than 3 ppm of water, in particular a natural gas coming from a natural gas field or from a natural gas pipeline, or a refinery gas or another gas available at an extraction pressure set between 15 and 300 bar, and an apparatus. The method provides prearranging an expansion device having at least one first expansion equipment, selected from the group comprised of: a radial expansion device and a static expansion device, in which a first expansion takes place with a cooling effect down to a temperature that is higher than the solid formation temperature that may be formed starting from water and/or hydrocarbons present in said gas, and further having at least one second expansion equipment which is arranged downstream of the first expansion equipment.

摘要翻译： 一种在至少一种含有多于3个碳原子的碳原子的烃基中分离出甲烷的方法，其含有大于3ppm的水，特别是天然气或天然气管道的天然气，或 炼油厂气体或提供压力为15至300巴之间的另一种气体，以及一种装置。 该方法提供了预先布置具有至少一个第一膨胀设备的膨胀装置，该第一膨胀设备选自包括以下的组：径向膨胀装置和静态膨胀装置，其中第一膨胀发生，其冷却效果降低至更高的温度 比可以从存在于所述气体中的水和/或烃开始形成的固体形成温度，并且还具有布置在第一膨胀设备下游的至少一个第二膨胀设备。