CN106460484A - 用于螺杆泵的具有惯性质量的止回阀 - Google Patents

用于螺杆泵的具有惯性质量的止回阀 Download PDF

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CN106460484A
CN106460484A CN201480073500.6A CN201480073500A CN106460484A CN 106460484 A CN106460484 A CN 106460484A CN 201480073500 A CN201480073500 A CN 201480073500A CN 106460484 A CN106460484 A CN 106460484A
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德 格瓦拉 亚历杭德罗·拉德龙
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SERINPET Ltda REPRESENTACIONES Y SERVICIOS DE PETROLEOS
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28—Safety arrangements; Monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Reciprocating Pumps (AREA)
  • Check Valves (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及一种具有惯性质量的止回阀，该止回阀安装在生产油管的底部且在油井的螺杆泵(PCP)上方，所述阀在静液柱的人为上升因PCP停止而停止时防止生产油管内的静液柱下降。防止这种现象发生防止了PCP在与其正常操作的方向相反的方向上旋转，且防止被沉积在其中的颗粒材料阻塞。

Description

用于螺杆泵的具有惯性质量的止回阀
技术领域
本发明涉及机械工程领域，且应用于油气行业。
具体而言，本发明应用于使用PCP的油井。
背景技术
标题为“燃油泵中的改进系统(Improvement System in a fuel pump)”的专利请求第2006027513号具有一种燃料供应系统，该燃料供应系统包括燃料泵、控制器和脉动电路。燃料泵具有电机，该电机包括配置绕组，该绕组以第一张力的最大效能操作至预期负载。控制器包括脉动宽度调制器，该脉动宽度调制器产生致动电机的电信号。在正常操作状态下，电路起到脉动阶跃(impulse step)的作用，并生成以第一电压调制的激励信号以控制泵的输出。然而，当施加于电机的负载超过预期负载时，脉动电路用于将激励信号缩放至大于第一张力的第二张力。第二张力将电机驱动至超过最大效率的张力，但总体上使系统的效率更高。
另一方面，标题为“具有逸出脉动的衰减的线性泵(Linear Pump withattenuation of escape pulsations)”的专利申请第20060034709号描述了一种具有轴向对准的气缸和活塞装置的线性泵，该活塞装置由电磁电机驱动，该电磁电机具有限定由隔膜覆盖的腔体的逸出相机。该隔膜可响应于逸出相机中的压力波动而移动到腔体中以减小流出逸出相机的气流的脉动。隔膜安装在由支撑环形成中空的腔体上方，该支撑环具有允许空气作用于隔膜的开口中心。
由于泵源自螺杆泵，因此上述专利未有效地实现抽吸泵的优化。
螺杆泵(PCP)为顺时针旋转以将油从井底部提升至表面的机器。为此，使用了位于表面上并具有电机和减速器的机器，该机器负责提供必要的旋转和使该泵移动的动力。还使用了将PCP转子与该表面连接的一串杆。这些杆的测量大约为6米，但钻柱可在300m至3000m之间测量，该钻柱为各种这些(量油尺)的联合体；这些量油尺将机器的动力和旋转从表面传输至泵。目前的问题是，当PCP停止时，其上方的静液柱使得PCP在与其正常操作相反的方向上旋转。在某些情况下，这因与石油开采物混合的颗粒物质(例如，砂)而对泵产生阻碍。这还表示存在一个小时至两个小时的估算延时，这因为不可能在PCP沿与其正常操作相反的方向旋转时启动PCP。该不当罢工在该行业代表了数以百万计的损失。
哥伦比亚专利“用于螺杆泵(PCP)的止回阀(Check valve for progressivecavities pumps(PCP))”描述了一种用于螺杆泵(PCP)的止回阀，其试图优化PCP的操作，但其未有效地使静液柱有效地反向作用，因此有待改进。
在石油生产中，通常使用螺杆泵，且仍需要防止该机器反向旋转。
该技术问题的有效解决方案可减少该人为上升系统的操作成本。
基于防止螺杆泵反向旋转的第一阀设计开发了本发明，该第一阀设计将利用相关调节来优化其性能。
具体实施方式
本发明提供了一种具有惯性质量的止回阀，该止回阀安装在生产油管底部且在油井PCP上方，其在人为上升由于PCP停止而暂停时防止生产油管内的静液柱下降。在避免该现象出现时，我们得知PCP不会在与其正常工作相反的方向上转动，且PCP不会由于与石油开采物混合的颗粒物质(例如，将位于PCP上的砂)而被阻塞。
用于螺杆泵的具有惯性质量的止回阀由八个部件构成，这八个部件分别为：上锁定螺母、阀杆、活塞、活塞盖、螺纹接头、下锁定螺母、内衬垫和外衬垫。活塞轴向地移动通过阀杆，并坐置于形成液压密封的螺纹接头上。当活塞未坐置时，允许流体的人为上升，并且活塞由于其几何特征而被嵌入上锁定螺母内，该上锁定螺母耦接在阀杆的左上螺钉内，以与阀杆共同旋转。
该用于螺杆泵的止回阀具有惯性质量是指活塞所具有的重量。活塞的重量改进了其下降运动，这保证了用于螺杆泵的具有惯性质量的止回阀的关闭动作。具有惯性质量的止回阀由八个主要部件组成：上螺母1、阀杆2、活塞3、活塞盖4、螺纹接头5、下螺母6、内衬垫17和外衬垫18，如图1所示。由于加工过程，阀杆2包括中合金钢轴，除螺纹9和10之外，中合金钢轴的端部还具有螺纹8和11，如图3所示。上左旋螺纹9靠近上螺纹8，而下左旋螺纹10靠近螺纹11的底部。上螺纹8与属于一串杆的耦接件(cuplin)连接，该耦接件连接至位于井表面的具有减速器的电机。通过耦接件，下螺纹11连接至杆串，该杆串连接至PCP的转子泵。锁定螺母6安装在下左旋螺纹10中，以便支撑位于螺纹11底部的耦接件。活塞3包括内部凹槽13，内衬垫17安装在该内部凹槽中，该内衬垫将流体保持在活塞3与阀杆2之间，如图4所示。还具有阶状件14，外衬垫18安装在该阶状件处并将流体保持在螺纹接头5与活塞3之间，如图4所示。活塞3还具有螺纹15，其中，这个部件被活塞盖4覆盖，以便保持并确保外衬垫18的位置。盖活塞4具有两个平行的平坦面，如图5所示，其用作用于将活塞盖4旋入活塞3的螺纹15中的支撑工具。阀杆2穿过活塞3插入，并且因顶部锁定螺母1安装在左上螺纹8中而受限制。顶部锁定螺母1的特征在于两个楔形部7，如图2所示，该楔形部与活塞3的楔形凹槽12耦接。螺纹接头5安装在位于活塞3下方且位于下锁定螺母6上方的管道中。螺纹接头5具有锥形座16，如图6所示，当具有惯性质量的止回阀关闭时，活塞3支撑在锥形座16处。
活塞设计考虑了足够的重量，以实现下降并克服内衬垫17与阀杆2之间发生的摩擦。这确保了活塞3插入螺纹接头5中并密封流体的内部和外部通道，如图8所示。此外，活塞3的设计的包括直径1(D1)和直径2(D2)，如图4所示。直径D1的测量值足够大，因此阀杆2可利用滑动配合穿过活塞3。为了在阀杆2与活塞3之间提供松配合，直径D2大于直径D1。在所有这些的情况下，即便阀杆2略微弯曲，系统也将确保其运转。
当油井进行生产时，活塞3被提升至与上锁定螺母1接触，在此处其与上螺母1的楔形部7接合，如图8所示。当PCP停止旋转时，为了属于静液柱的流体的拖拉动作而增加的活塞重量将使活塞3下降以使锥形座16承受该活塞，如图9所示。这样，外衬垫18在活塞3与螺纹接头之间形成密封。
附图说明
图1：各个部件已组装的用于螺杆泵的具有惯性质量的止回阀的视图。
图2：顶部螺母1的视图。
图3：阀杆2的视图。
图4：活塞3的视图。
图5：顶部活塞4的视图。
图6：螺纹接头5的视图。
图7：下锁定螺母6的视图。
图8：处于打开位置的用于螺杆泵的具有惯性质量的止回阀的立体图，其中，活塞3嵌入上螺母1的楔形部7中。
图9：处于关闭位置的用于螺杆泵的具有惯性质量的止回阀的立体图，其中，活塞3位于螺纹接头5的锥形座16上。
附图标记列表
1.顶部锁定螺母
2.阀杆
3.活塞
4.活塞盖
5.螺纹接头
6.下锁定螺母
7.楔子
8.上螺纹
9.左上螺纹
10.左下螺纹
11.下螺纹
12.楔形部凹槽
13.内部凹槽
14.阶状件
15.螺纹
16.锥形座
17.内衬垫(Internal packing)
18.外衬垫(External packing)

Claims (4)

1.一种用于螺杆泵(PCP)的具有惯性质量的止回阀，其特征在于，所述止回阀具有活塞3，所述活塞通过质量克服内衬垫17与阀杆2之间的摩擦力，所述活塞进行向下运动，并且所述活塞与螺纹接头5形成密封，并封闭所述阀杆2与所述螺纹接头5之间的流体通路。
2.根据权利要求1所述的用于螺杆泵(PCP)的具有惯性质量的止回阀，其特征在于，所述止回阀具有上螺母1，一旦所述活塞离开所述螺纹接头5且油井处于生产中，所述上螺母具有楔形部7，所述楔形部用于与所述活塞3的楔形凹槽12配合。
3.根据权利要求1和2所述的用于螺杆泵(PCP)的具有惯性质量的止回阀，其特征在于，所述止回阀包括活塞3，所述活塞的内部几何形状具有小于直径D2的内径D1，通过所述阀杆2的弯曲而暂停使所述活塞3卡在所述阀杆2中。
4.根据权利要求1、2和3所述的用于螺杆泵(PCP)的具有惯性质量的止回阀，其特征在于，所述止回阀具有活塞3，所述活塞具有由活塞盖4调节的外衬垫18。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829710A (zh) * 2017-09-12 2018-03-23 中国海洋石油总公司 一种环状阀板式井下安全装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10787885B2 (en) 2015-11-30 2020-09-29 Brennon Leigh Cote Upstream shuttle valve for use with progressive cavity pump
RU2693120C1 (ru) * 2018-11-28 2019-07-01 Общество С Ограниченной Ответственностью "Оклэс Технолоджиз" Гидрозащита с устройством для предотвращения турбинного вращения
RU2693118C1 (ru) * 2018-11-28 2019-07-01 Общество С Ограниченной Ответственностью "Оклэс Технолоджиз" Устройство для предотвращения турбинного вращения

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576235A (en) * 1983-09-30 1986-03-18 S & B Engineers Downhole relief valve
CN2172343Y (zh) * 1993-09-01 1994-07-20 石油勘探开发科学研究院机械研究所 一种无油管井下采油装置
EP0625660A2 (de) * 1993-05-18 1994-11-23 Lincoln GmbH Rückschlagventil
CN2752485Y (zh) * 2004-08-25 2006-01-18 大庆油田有限责任公司 螺杆泵井下防反转装置
US7204268B2 (en) * 2005-02-10 2007-04-17 Busung Co., Ltd. Internal pressure equilibrium device for airtight space
CO5970151A1 (es) * 2008-04-09 2008-10-31 Serinpet Ltda Valvula de cheque para bombas de cavidades progresivas (bcp)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2082996A (en) * 1935-06-22 1937-06-08 Wintroath Pumps Ltd Valve device for submersible well pumps
US2571497A (en) * 1949-05-25 1951-10-16 Grafton M Stewart Oil well pump valve
US4332533A (en) 1979-09-13 1982-06-01 Watson International Resources, Ltd. Fluid pump
US4767291A (en) * 1987-01-14 1988-08-30 Freeman John E Single valve pump
CA2302538C (en) * 1999-03-24 2005-03-15 Baker Hughes Incorporated Production tubing shunt valve
EP1252416B1 (en) * 2000-01-24 2005-07-20 Shell Internationale Researchmaatschappij B.V. Choke inductor for wireless communication and control in a well
US6543542B2 (en) * 2001-04-30 2003-04-08 My-D Han-D Co. Crude oil recovery system
US8545190B2 (en) * 2010-04-23 2013-10-01 Lawrence Osborne Valve with shuttle for use in a flow management system
RU100130U1 (ru) * 2010-05-31 2010-12-10 Центр Разработки Нефтедобывающего Оборудования (Црно) Клапанное устройство для погружного винтового насоса
US20120251337A1 (en) 2011-03-28 2012-10-04 Freeman John E Sliding valve downhole pump
WO2013021387A1 (en) * 2011-08-10 2013-02-14 Mekorot Water Company Ltd. Well pump system
US9518457B2 (en) * 2013-10-18 2016-12-13 Global Oil And Gaa Aupplies Inc. Downhole tool for opening a travelling valve assembly of a reciprocating downhole pump
US10669813B2 (en) * 2015-08-24 2020-06-02 Gas Sensing Technology Corp. Production tubing flow diversion valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576235A (en) * 1983-09-30 1986-03-18 S & B Engineers Downhole relief valve
EP0625660A2 (de) * 1993-05-18 1994-11-23 Lincoln GmbH Rückschlagventil
CN2172343Y (zh) * 1993-09-01 1994-07-20 石油勘探开发科学研究院机械研究所 一种无油管井下采油装置
CN2752485Y (zh) * 2004-08-25 2006-01-18 大庆油田有限责任公司 螺杆泵井下防反转装置
US7204268B2 (en) * 2005-02-10 2007-04-17 Busung Co., Ltd. Internal pressure equilibrium device for airtight space
CO5970151A1 (es) * 2008-04-09 2008-10-31 Serinpet Ltda Valvula de cheque para bombas de cavidades progresivas (bcp)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829710A (zh) * 2017-09-12 2018-03-23 中国海洋石油总公司 一种环状阀板式井下安全装置
CN107829710B (zh) * 2017-09-12 2019-12-06 中国海洋石油集团有限公司 一种环状阀板式井下安全装置

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MY187066A (en) 2021-08-28
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CA2934841A1 (en) 2015-05-28
US20170122067A1 (en) 2017-05-04
CN106460484B (zh) 2022-04-26
CA2934841C (en) 2022-01-11
CO7270142A1 (es) 2015-05-19
AU2014351384A1 (en) 2016-07-07
US10858908B2 (en) 2020-12-08
AU2019200819A1 (en) 2019-02-28
RU2016124209A (ru) 2017-12-25
RU2667961C1 (ru) 2018-09-25
WO2015075636A1 (es) 2015-05-28
AR098399A1 (es) 2016-05-26
AU2019200819B2 (en) 2020-11-12
PE20161102A1 (es) 2016-11-26

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