公开(公告)号：WO2011121424A3

公开(公告)日：2011-12-08

申请号：PCT/IB2011000672

申请日：2011-03-29

Applicant: SIME SRL ,  FAVILLI STEFANO ,  LEITEMPERGHER GIACINTO ,  SCIBOLA LUCIANO

Inventor： FAVILLI STEFANO ,  LEITEMPERGHER GIACINTO ,  SCIBOLA LUCIANO

IPC: E21B41/00 ,  F03B13/10

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

Abstract: 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 (Pi) to the use pressure (Pa), 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.

Abstract translation: 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 能量回收膨胀装置（24），其使转子旋转和气体膨胀，压力从提取压力（Pi）降低到使用压力（Pa），这使得可以获得电力 （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：WO2011121424A2

公开(公告)日：2011-10-06

申请号：PCT/IB2011/000672

申请日：2011-03-29

Applicant: SIME SRL ,  FAVILLI, Stefano ,  LEITEMPERGHER, Giacinto ,  SCIBOLA, Luciano

Inventor： FAVILLI, Stefano ,  LEITEMPERGHER, Giacinto ,  SCIBOLA, Luciano

IPC: E21B41/00 ,  F03B13/10

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

Abstract: 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 (Pi) to the use pressure (Pa), 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.

Abstract translation: 一种用于降低天然气田井口处的天然气（2）的压力的方法和设备（100）。 该方法提供了一种能量回收膨胀装置（20），该装置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 能够将转子的旋转和气体的膨胀的能量回收膨胀装置（24）从抽出压力（Pi）降低到使用压力（Pa），由此能够得到电力 （W），适合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。 为了允许诸如涡轮的回收膨胀装置的可靠操作，提供了用于精细地分离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） ，其可以包括添加剂进入气体（3）的进料装置（12），所述添加剂适于降低固体的形成温度，并且在有利的方式中，在更高量的水的情况下，用于加热的装置 气体使温度保持在固体的形成温度以上。

公开(公告)号：WO2011135414A3

公开(公告)日：2012-01-26

申请号：PCT/IB2011000682

申请日：2011-03-30

Applicant: SIME SRL ,  FAVILLI STEFANO ,  LEITEMPERGHER GIACINTO ,  SCIBOLA LUCIANO

Inventor： FAVILLI STEFANO ,  LEITEMPERGHER GIACINTO ,  SCIBOLA LUCIANO

IPC: C10G5/06 ,  B01D53/00 ,  B01D53/26 ,  C10L3/10 ,  F25J3/06

CPC classification number: 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

Abstract: A method for separating methane from at least one hydrocarbon with two or more carbon atoms in a substantially gaseous fluid (2,3), 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, in particular between 35 and 150 bar, and an apparatus 500 to carry out this method. The method provides prearranging an expansion device (20) comprising at least one first expansion equipment, selected from the group comprised of: a radial expansion device (19) and a static expansion device (24), 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 comprising at least one second expansion equipment, selected from the group comprised of: a static expansion device (30) and a screw expansion device (25), which is arranged downstream of the first expansion equipment (19, 24), and where the expansion continues with a further cooling effect below the solid formation temperature, such that ice and/or hydrocarbon hydrates are formed only in the second expansion equipment arranged downstream. This way, it is possible to obtain a liquefaction of the hydrocarbons with two or more carbon atoms by means of Joule-Thomson effect even if the combustible gas contains considerable amount of water, without resorting to expensive preliminary dehydration operations.

Abstract translation: 在基本上为气态的流体（2,3）中从至少一种具有两个或更多碳原子的烃分离甲烷的方法，其含有大于3ppm的水，特别是天然气或天然气的天然气 天然气管道或炼油厂气体或另外提供的压力为15至300巴，特别是35至150巴之间的提取压力，以及执行该方法的装置500。 该方法提供预先布置膨胀装置（20），该膨胀装置包括至少一个第一膨胀设备，其选自包括：径向膨胀装置（19）和静态膨胀装置（24）的组，其中第一膨胀装置 冷却效果降低到高于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的温度，并且还包括至少一个第二膨胀设备，所述第二膨胀设备选自静态膨胀 装置（30）和螺杆膨胀装置（25），其布置在第一膨胀设备（19,24）的下游，并且其中膨胀继续在固体地层温度以下的另外的冷却效果，使得冰和/或 烃水合物仅在布置在下游的第二膨胀设备中形成。 这样，即使可燃气体含有大量的水，也不用借助昂贵的预脱水操作，就可以通过焦耳 - 汤姆逊效应来获得具有两个或多个碳原子的烃的液化。

公开(公告)号：WO2011135414A2

公开(公告)日：2011-11-03

申请号：PCT/IB2011/000682

申请日：2011-03-30

Applicant: SIME SRL ,  FAVILLI, Stefano ,  LEITEMPERGHER, Giacinto ,  SCIBOLA, Luciano

Inventor： FAVILLI, Stefano ,  LEITEMPERGHER, Giacinto ,  SCIBOLA, Luciano

CPC classification number: 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

Abstract: A method for separating methane from at least one hydrocarbon with two or more carbon atoms in a substantially gaseous fluid (2,3), 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, in particular between 35 and 150 bar, and an apparatus 500 to carry out this method. The method provides prearranging an expansion device (20) comprising at least one first expansion equipment, selected from the group comprised of: a radial expansion device (19) and a static expansion device (24), 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 comprising at least one second expansion equipment, selected from the group comprised of: a static expansion device (30) and a screw expansion device (25), which is arranged downstream of the first expansion equipment (19, 24), and where the expansion continues with a further cooling effect below the solid formation temperature, such that ice and/or hydrocarbon hydrates are formed only in the second expansion equipment arranged downstream. This way, it is possible to obtain a liquefaction of the hydrocarbons with two or more carbon atoms by means of Joule-Thomson effect even if the combustible gas contains considerable amount of water, without resorting to expensive preliminary dehydration operations.

Abstract translation: 在基本上为气态的流体（2,3）中从至少一种具有两个或更多碳原子的烃分离甲烷的方法，其含有大于3ppm的水，特别是天然气或天然气的天然气 天然气管道或炼油厂气体或另外提供的压力为15至300巴，特别是35至150巴之间的提取压力，以及执行该方法的装置500。 该方法提供预先布置膨胀装置（20），该膨胀装置包括至少一个第一膨胀设备，其选自包括：径向膨胀装置（19）和静态膨胀装置（24）的组，其中第一膨胀装置 冷却效果降低到高于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的温度，并且还包括至少一个第二膨胀设备，所述第二膨胀设备选自静态膨胀 装置（30）和螺杆膨胀装置（25），其布置在第一膨胀设备（19,24）的下游，并且其中膨胀继续在固体地层温度以下的另外的冷却效果，使得冰和/或 烃水合物仅在布置在下游的第二膨胀设备中形成。 这样，即使可燃气体含有大量的水，也不用借助昂贵的预脱水操作，就可以通过焦耳 - 汤姆逊效应来获得具有两个或多个碳原子的烃的液化。