PROCÉDÉ DE DÉTECTION DE LA PRÉSENCE D'HYDRATE DE GAZ DANS UNE CONDUITE DESTINÉE AU TRANSPORT DE FLUIDE D'HYDROCARBURE

    公开(公告)号:WO2019122718A1

    公开(公告)日:2019-06-27

    申请号:PCT/FR2018/053413

    申请日:2018-12-19

    Applicant: TECHNIP FRANCE

    CPC classification number: F17D1/05 F17D1/005 F17D1/18 F17D3/01

    Abstract: L'invention concerne un procédé de détection de présence d'un bouchon d'hydrates (16) dans une conduite (12) de transport de fluide d'hydrocarbure, comprenant un suivi temporel en continu de l'évolution de la température du fluide transporté le long d'une portion (29) de conduite et une comparaison entre, d'une part, l'évolution temporelle locale de la température le long d'une zone particulière de la portion (29) de conduite et, d'autre part, l'évolution temporelle globale de la température le long de la portion de conduite, de façon à identifier les zones pour lesquelles l'évolution temporelle locale de la température est significativement différente de l'évolution temporelle globale de la température, mais aussi pour lesquelles cette différence répond à des critères spécifiques permettant de déduire la présence d'un bouchon d'hydrate au niveau local.

    SELF-POWERED PIPELINE HYDRATE PREVENTION SYSTEM
    2.
    发明申请
    SELF-POWERED PIPELINE HYDRATE PREVENTION SYSTEM 审中-公开
    自供水管道预防系统

    公开(公告)号:WO2017048920A1

    公开(公告)日:2017-03-23

    申请号:PCT/US2016/051884

    申请日:2016-09-15

    CPC classification number: H02K7/1823 F16L53/38 F17D1/05 H05B1/02 H05B1/0244

    Abstract: A system for preventing hydrate formation in a pipeline includes a heater housing. The heater housing has an outer diameter sized to travel within the pipeline. A turbine assembly is located within the heater housing. The turbine assembly has a blade that is rotatable by a flow of fluid within the pipeline. An electric heater is located within the heater housing and is electrically connected to the turbine assembly. The electric heater is selectively contacted by the flow of fluid within the pipeline.

    Abstract translation: 用于防止管道中水合物形成的系统包括加热器壳体。 加热器壳体具有尺寸适于在管道内行进的外径。 涡轮机组件位于加热器壳体内。 涡轮组件具有可由管道内的流体流旋转的叶片。 电加热器位于加热器壳体内并且电连接到涡轮组件。 电加热器由管道内的流体流选择性地接触。

    TOOL AND METHOD FOR REMOVING GAS HYDRATES FROM THE SURFACE OF SUBSEA OIL AND GAS EXPLORATION AND PRODUCTION EQUIPMENT THROUGH LASER RADIATION
    3.
    发明申请
    TOOL AND METHOD FOR REMOVING GAS HYDRATES FROM THE SURFACE OF SUBSEA OIL AND GAS EXPLORATION AND PRODUCTION EQUIPMENT THROUGH LASER RADIATION 审中-公开
    通过激光辐射从天然气水合物和天然气勘探及生产设备中去除天然气水合物的工具和方法

    公开(公告)号:WO2014059501A1

    公开(公告)日:2014-04-24

    申请号:PCT/BR2013/000430

    申请日:2013-08-18

    Abstract: A tool (100) is described for removing unwanted gas hydrates from the surface of equipment used in subsea exploration and production, with the said tool being comprised of a main vessel (1) and a power cable (2) linked together by a connector (3); and, inside the said vessel (1) a laser device (15) is connected to an adjustable focus collimator (4) by a cable (12), with the wavelength emitted by the said laser (15) being between 200 nm and 930 nm, whereby when the radiation reaches the subsea exploration equipment it causes the heating thereof, which in turn heats the hydrate through conduction, breaking down the hydrate formation from the inside out; and with the front lid (14) having a window (5) forming an interface between the said vessel (1) and the aqueous medium, with the said window (5) being fitted with anti-reflection film (6) and anti-reflection film (7). The method for removing gas hydrates from the surfaces of equipment used in subsea exploration and production with the assistance of the said tool (100) is also described.

    Abstract translation: 描述了用于从海底勘探和生产中使用的设备的表面去除不需要的气体水合物的工具(100),所述工具由主船(1)和电力电缆( 2)通过连接器(3)连接在一起; 并且在所述容器(1)内部,激光装置(15)通过电缆(12)连接到可调焦点准直仪(4),所述激光器(15)发射的波长在200nm和930nm之间 ,当辐射到达海底勘探设备时,其引起其加热,其继而通过传导加热水合物,从内向外分解水合物形成物; 并且前盖(14)具有在所述容器(1)和含水介质之间形成界面的窗口(5),所述窗口(5)装配有防反射膜(6)和抗反射 电影(7)。 还描述了在所述工具(100)的帮助下从用于海底勘探和生产的设备的表面除去气体水合物的方法。

    A COMPOSITION AND METHOD FOR INHIBITING AGGLOMERATION OF HYDRATES IN PIPELINES
    4.
    发明申请
    A COMPOSITION AND METHOD FOR INHIBITING AGGLOMERATION OF HYDRATES IN PIPELINES 审中-公开
    用于抑制管道中水合物凝集的组合物和方法

    公开(公告)号:WO2010111226A2

    公开(公告)日:2010-09-30

    申请号:PCT/US2010/028241

    申请日:2010-03-23

    Abstract: The invention is an anti-agglomeration composition for preventing hydrates from binding together and forming plugs in pipelines, particularly from off shore gas wells. The inventive composition contains a combination of a surfactant and an alcohol cosurfactant, both present in low amounts to limit environmental effects as well as to reduce the cost of separation in downstream operations. The inventive composition comprises a surfactant and an alcohol co-surfactant each provided in effective amounts to cause anti-agglomeration of hydrates at high subcooling temperatures and/or at high water-cuts. Preferably, the surfactant is a Rhamnolipid biosurfactant and the alcohol cosurfactant is methanol, the alcohol cosurfactant being present at concentrations low enough such that side effects such as salt deposition are avoided. Generally, the alcohol cosurfactant should be present at from 0.05-5% wt., with the surfactant present at from 0.01 to 10% wt, more preferably 0.01-5% wt.. Using the present invention, agglomeration of hydrates in gas and oil pipelines can be reduced.

    Abstract translation: 本发明是一种用于防止水合物结合在一起并在管道中形成塞子的抗附聚组合物,特别是在离岸气井中。 本发明的组合物包含表面活性剂和醇辅助表面活性剂的组合,其以低的量存在以限制环境影响以及降低下游操作中的分离成本。 本发明的组合物包含表面活性剂和醇助表面活性剂,各自提供有效量,以在高过冷温度和/或高水分切割下引起水合物的抗附聚。 优选地,表面活性剂是鼠李糖脂生物表面活性剂,醇辅助表面活性剂是甲醇,醇辅助表面活性剂以足够低的浓度存在,从而避免诸如盐沉积的副作用。 通常,醇辅助表面活性剂应以0.05-5重量%存在,表面活性剂的含量为0.01至10重量%,更优选为0.01-5重量%。使用本发明,水合物在气和油中的团聚 管道可以减少。

    METHOD FOR PROTECTING HYDROCARBON CONDUITS
    5.
    发明申请
    METHOD FOR PROTECTING HYDROCARBON CONDUITS 审中-公开
    保护油气管道的方法

    公开(公告)号:WO2007104984A1

    公开(公告)日:2007-09-20

    申请号:PCT/GB2007/000897

    申请日:2007-03-14

    CPC classification number: F17D1/05 E21B37/06 E21B43/01

    Abstract: The invention provides a method of protecting a hydrocarbon conduit during a period of reduced hydrocarbon flow, said method comprising introducing nitrogen into said conduit during a said period at a pressure p of 1 to 350 bar g and at a rate of (1.5 to 35) .A kg/sec (where A is the internal cross sectional area of the conduit in square metres) for a period of t hours where t = p.d/n where d is the length in km of the conduit from the nitrogen introduction location and n is 10 to 400.

    Abstract translation: 本发明提供了一种在减少烃流动期间保护烃管道的方法,所述方法包括在压力p为1至350巴克和(1.5至35)的速率的所述期间内将氮气导入所述管道中, a kg / sec(其中A是导管的内部横截面积,以平方米为单位)t小时的时间,其中t = pd / n,其中d是导管从氮气导入位置的长度(km),n 是10到400。

    METHOD FOR INHIBITING HYDRATE FORMATION
    7.
    发明申请
    METHOD FOR INHIBITING HYDRATE FORMATION 审中-公开
    抑制水合物形成的方法

    公开(公告)号:WO2003021078A1

    公开(公告)日:2003-03-13

    申请号:PCT/GB2002/003420

    申请日:2002-07-25

    CPC classification number: F17D1/05 C09K8/52 C09K2208/22 C10L1/328 Y10S585/95

    Abstract: A method for inhibiting the formation of gas hydrates within a fluid comprising a gaseous hydrocarbon phase, a liquid hydrocarbon phase and an aqueous phase which method comprises mixing a polymeric emulsifier and optionally a non-ionic non-polymeric co-emulsifier with the fluid prior to subjecting the fluid to conditions under which gas hydrates can be formed so as to generate a water-in-oil emulsion comprising a discontinuous aqueous phase, a continuous liquid hydrocarbon phase and a substantially gas impermeable interfacial layer comprising said polymeric emulsifier and optionally said non-ionic non-polymeric co-emulsifier wherein the aqueous phase is distributed in the continuous liquid hydrocarbon phase in the form of droplets and the substantially gas impermeable interfacial layer encapsulates said droplets.

    Abstract translation: 一种用于抑制在包含气态烃相,液态烃相和水相的流体中形成气体水合物的方法,该方法包括将聚合乳化剂和任选的非离子非聚合共乳化剂与流体混合, 使流体经受能够形成气体水合物的条件,以便产生包含不连续水相,连续液态烃相和基本不透气的界面层的油包水乳液,所述界面层包含所述聚合物乳化剂和任选的所述非水性乳液, 离子型非聚合共乳化剂,其中水相以液滴的形式分布在连续液相烃相中,并且基本上不透气的界面层包封所述液滴。

    REFRIGERATION FROM EXPANSION OF TRANSMISSION PIPELINE GAS
    8.
    发明申请
    REFRIGERATION FROM EXPANSION OF TRANSMISSION PIPELINE GAS 审中-公开
    传输管道气扩散制冷

    公开(公告)号:WO1987002758A1

    公开(公告)日:1987-05-07

    申请号:PCT/US1985002079

    申请日:1985-10-22

    CPC classification number: F17D1/07 F17D1/05 F25B9/06

    Abstract: Refrigeration is produced while delivering transmission pipeline gas (20) of elevated pressure to a branch pipeline of lower pressure by expanding the gas in a turbo-expander (29) to a pressure below the branch pipeline (47) pressure and recovering refrigeration from the expanded gas which is then compressed by a centrifugal compressor (41) directly driven by the turbo-expander (29) to the pressure required for delivery into the branch pipeline (47). The gas (20) is dehydrated by adding methanol through pump (24), and separating aqueous methanol condensate from the expanded gas in separator (31), and the condensate is distilled in column (55) with compression heat in reboiler (64) to recover methanol for reuse.

    Abstract translation: 通过将涡轮膨胀机(29)中的气体膨胀至分支管道(47)压力以下的压力,将升压的输送管道气体(20)输送到较低压力的分支管路,同时从膨胀的 气体然后被直接由涡轮膨胀机(29)驱动的离心式压缩机(41)压缩成输送到分支管道(47)所需的压力。 气体(20)通过泵(24)加入甲醇进行脱水,并将分离器(31)中的膨胀气体中的甲醇缩合物分离,并将冷凝物在再沸器(64)的压缩热中在塔(55)中蒸馏至 回收甲醇进行再利用。

    PROCEDE POUR DEBOUCHER UNE CONDUITE DESTINEE AU TRANSPORT DE FLUIDE D'HYDROCARBURE OBTUREE PAR DES HYDRATES

    公开(公告)号:WO2019122717A1

    公开(公告)日:2019-06-27

    申请号:PCT/FR2018/053412

    申请日:2018-12-19

    Applicant: TECHNIP FRANCE

    CPC classification number: B08B9/02 F16L53/38 F17D1/005 F17D1/05 F17D1/18

    Abstract: L'invention concerne un procédé de débouchage d'une conduite (12) de transport de fluide d'hydrocarbure, dans lequel on détecte la présence d'un bouchon (16) d'hydrate de gaz obturant la conduite, à partir de l'exploitation de valeurs de température mesurées le long de la conduite (12), on commande des moyens de chauffage (28) de la conduite de manière à faire fondre le bouchon détecté et, pendant la dissociation du bouchon, on surveille révolution temporelle locale de la température du fluide transporté à l'endroit du bouchon, on fournit une estimation de l'évolution temporelle de la pression interne au niveau du bouchon, à partir de ladite évolution temporelle locale de température et d'une courbe pression-température de limite de phase de l'hydrate entre un état solidifié et un état gazeux, de façon à réguler la puissance de chauffage en fonction de la pression interne estimée pendant la dissociation du bouchon.

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