KR20170052227A - Heavy oil production system using subsea water-oil separation - Google Patents

Heavy oil production system using subsea water-oil separation Download PDF

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KR20170052227A
KR20170052227A KR1020150154428A KR20150154428A KR20170052227A KR 20170052227 A KR20170052227 A KR 20170052227A KR 1020150154428 A KR1020150154428 A KR 1020150154428A KR 20150154428 A KR20150154428 A KR 20150154428A KR 20170052227 A KR20170052227 A KR 20170052227A
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water
pipe
product
production
seabed
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KR1020150154428A
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Korean (ko)
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이예슬
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대우조선해양 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
    • C10G31/08—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by treating with water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0438—Middle or heavy distillates, heating oil, gasoil, marine fuels, residua

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention relates to a system for producing heavy oil by inputting water to an oil well of the seabed comprising: a water inputting device (10) which inputs production water through an inputting conduit (15); a seabed separating device (20) which is connected to an upper side of the water inputting device (10), separates a product from the production water, and transfers the production water to the inputting conduit (15); and a heat exchanging unit which prevents heat loss of the product in a transfer process of the production water. Therefore, the present invention prevents water overflow in a top side through the oil separation of the seabed; secures fluidity of the high viscosity heavy oil by preventing the heat loss between a pipe and the seawater; reduces preheating calories in first step separation of the top side caused by a high fluid temperature; and secures a no-touch time in a shut-down.

Description

해저의 유수분리를 이용한 중질오일 생산 시스템{Heavy oil production system using subsea water-oil separation}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy oil production system using subsea water-

본 발명은 중질오일 생산 시스템에 관한 것으로서, 보다 구체적으로는 해저분리기를 도입하여 유정에 물주입되기 전의 물을 분리오일의 생산에 이용하는 해저의 유수분리를 이용한 중질오일 생산 시스템에 관한 것이다.The present invention relates to a heavy oil production system, and more particularly, to a heavy oil production system using oil separation of seafloor, which utilizes water before oil is introduced into the oil well by introducing a seabed separator.

중질오일(API gravity가 20보다 낮고 점도가 높은 오일)을 생산할 때 물과 오일 사이에 형성되는 안정화된 에멀젼(emulsion)은 파쇄가 어렵고 히팅이나 에멀젼 브레이커(emulsion breaker) 등의 케미컬 인젝션(chemical injection)을 필요로 하게 된다.Stabilized emulsions formed between water and oil when producing heavy oils (API gravity less than 20 and high viscosity) are difficult to break and can be used for chemical injection, such as heating or emulsion breakers, .

더불어 중질오일 생산은 보통 하이워터컷(high water cut)을 동반하는데 이에 따라 생산 후기로 갈수록 탑사이드 물처리, 인젝션 설비의 용량 증대가 요구되며, 특히 코얼레싱 시스템(coalescing system)의 경우 유효보유시간(effective retention time)이 매우 길어지게 된다. 이러한 사실들은 탑사이드의 각 장비들이 매우 커지게 됨을 의미한다.In addition, heavy oil production usually accompanies a high water cut, which requires increasing the capacity of the topside water treatment and injection equipment as the latter stage of production, especially in the case of a coalescing system, (effective retention time) becomes very long. These facts mean that each piece of equipment on the top side will become very large.

하기의 특허문헌 1은 해양 플랫폼에서 시추 및 생산공정 중에 생산되는 생산수로부터 오일을 분리하되, 열교환 기능을 갖춰 해양으로 배출되는 물의 온도를 조절가능하도록 구성한다. 이에, 열교환기의 설치공간을 절약하여 해양 플랫폼의 공간 활용성을 높이는 효과를 기대한다.The following Patent Document 1 separates oil from production water produced during the drilling and production process on a marine platform, and has a heat exchange function so that the temperature of water discharged to the ocean can be adjusted. Therefore, it is expected that the installation space of the heat exchanger is saved, and the space utilization of the marine platform is improved.

특허문헌 2는 해저의 2상 분리기, 해저의 저장 설비, 부유체, 물 펌프 및 원유 펌프를 포함하며, 상기 해저 저장 설비는 제1탱크와 제2탱크로 분리되고, 상기 제2탱크의 바닥이 압력균형수단으로 형성된다. 이에, 2상 분리기를 사용하여 부피를 축소하고 제2탱크의 구조 변경으로 해저압력에 견디는 효과를 기대한다.Patent Document 2 includes a two-phase submarine separator, a submarine storage facility, a float, a water pump, and a crude oil pump, wherein the submarine storage facility is divided into a first tank and a second tank, Pressure balance means. Therefore, it is expected that the effect of reducing the volume by using the two-phase separator and enduring the submarine pressure by changing the structure of the second tank is expected.

그러나, 상기한 선행의 특허문헌에 의하면 어느 정도 축소 설계의 여지는 있으나 탑사이드에 도달하는 물의 양이 축소되지 않아 탑사이드의 중량을 감소 내지 오일 생산성을 증대에 한계성을 보인다.However, according to the above-mentioned prior art documents, there is room for reduction in design to a certain extent, but the amount of water reaching the top side is not reduced, so that the weight of the top side is reduced and the oil productivity is limited.

1. 한국 공개특허공보 제2013-0045117호 "열교환기능을 갖는 생산수 처리장치" (공개일자 : 2013.05.03.)1. Korean Patent Laid-Open Publication No. 2013-0045117 entitled " Production Water Treatment Device Having Heat Exchange Function "(Published on May 31, 2013). 2. 한국 등록특허공보 제1238629호 "해저 유정유체 분리 및 저장장치" (공개일자 : 2012.07.27.)2. Korean Patent Registration No. 1238629 entitled " Separation and Storage Device of Subsea Well Fluid "(Published on July 27, 2012).

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 해저의 유수분리를 통해 막대한 주입용 물 처리량을 감소시키고 물주입에 앞선 열교환에 의한 중질오일의 열손실 감소로 유동성을 확보하는 해저의 유수분리를 이용한 중질오일 생산 시스템을 제공하는 데 있다.SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art by providing a method of reducing the amount of water for injection through water separation of seabeds and securing fluidity by reducing heat loss of heavy oil by heat exchange prior to water injection And to provide a heavy oil production system using oil separation.

상기 목적을 달성하기 위하여, 본 발명은 해저의 유정에 물주입하면서 중질오일을 생산하는 시스템에 있어서: 주입도관을 통하여 생산수를 주입하는 물주입기; 상기 물주입기의 상류측에 연결되어 생산수와 생산물을 분리하고, 생산수를 주입도관으로 이송하는 해저분리기; 및 상기 생산수의 이송과정에서 생산물의 열손실을 방지하는 열교환수단;을 포함하여 이루어지는 것을 특징으로 한다.In order to accomplish the above object, the present invention provides a system for producing heavy oil while injecting water into a submarine well, comprising: a water injector injecting production water through an injection conduit; A seabed separator connected to an upstream side of the water injector to separate production water and product, and to transfer production water to an injection conduit; And heat exchange means for preventing heat loss of the product during the transfer of the produced water.

본 발명의 세부 구성으로서, 상기 해저분리기는 분리과정에서 모래와 이물질을 배출하는 샌드치리부를 구비하는 것을 특징으로 한다.As a detailed construction of the present invention, the seabed separator is characterized in that it has a sandbag which discharges sand and foreign matter in the separation process.

본 발명의 세부 구성으로서, 상기 열교환수단은 생산물용 내관과 생산수용 외관이 동심으로 배치되는 이중유체관을 사용하는 것을 특징으로 한다.As a detailed configuration of the present invention, the heat exchanging means is characterized by using a double fluid pipe in which an inner tube for product and a production outer tube are concentrically arranged.

이때, 상기 이중유체관은 열교환 길이의 변동이 가능하도록 다수의 위치에 개폐 가능한 포트를 구비하는 것을 특징으로 한다.In this case, the double fluid tube is provided with a port that can be opened and closed at a plurality of positions so that the heat exchange length can be varied.

본 발명의 변형예로서, 상기 열교환수단은 내관의 외면 상에 외관을 나선형으로 밀착시킨 구조로 형성되는 것을 특징으로 한다.In a modification of the present invention, the heat exchanging means is formed in a structure in which an outer tube is helically adhered to an outer surface of an inner tube.

이상과 같이 본 발명에 의하면, 해저의 유수분리를 통하여 탑사이드에서의 물넘침을 방지하고, 배관 상에서 해수로 열손실 방지를 통하여 고점도 중질오일의 유동성을 확보하며, 높아진 유체 온도로 인한 탑사이드의 제1단계 분리에 있어 예열 열량을 축소하고, 셧다운 시 노터치타임(no touch time)의 확보에 유리한 효과가 있다.As described above, according to the present invention, it is possible to prevent overflowing of water at the top side through water separation of seabed, to secure the fluidity of high viscosity heavy oil through prevention of heat loss by seawater on piping, There is an advantageous effect in reducing the amount of preheating heat in the first step separation and ensuring a no touch time in shutdown.

도 1은 본 발명에 따른 시스템을 개략적으로 나타내는 구성도
도 2는 도 1의 A부분 및 B부분을 확대하여 나타내는 구성도
도 3은 본 발명의 변형예에 따른 열교환수단을 나타내는 구성1 is a block diagram schematically showing a system according to the present invention;
Fig. 2 is an enlarged view of a portion A and a portion B in Fig. 1
Fig. 3 is a schematic view showing a heat exchanging means according to a modification of the present invention

이하, 첨부된 도면에 의거하여 본 발명의 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 해저의 유정에 물주입하면서 중질오일(Heavy Oil)을 생산하는 시스템에 관하여 제안한다. 미국석유협회(API) 기준의 비중(gravity)이 20보다 낮고 점도가 높은 중질오일의 생산과 관련되지만 반드시 이에 국한되는 것은 아니다. 유정의 생산 후기로 갈수록 생산수의 처리량과 인젝션 설비의 용량이 증대되는 현상을 완화 내지 방지한다.The present invention proposes a system for producing heavy oil while injecting water into a submarine well. But is not necessarily limited to, the production of heavy oil having a gravity of less than 20 and a high viscosity of the American Petroleum Institute (API) standard. And the phenomenon that the throughput of the production water and the capacity of the injection equipment increase as the oil production reaches the later stage is alleviated or prevented.

본 발명에 따르면 물주입기(10)가 주입도관(15)을 통하여 생산수를 주입하는 구조이다. 물주입기(10)는 펌핑 유니트를 기반으로 하고 후술하는 해저분리기(20)의 생산수가 주입도관(15)을 통하여 해저 유정의 저류층으로 주입되도록 한다. 주입도관(15)의 하류단에는 X-트리가 연결될 수 있다.According to the present invention, water injector 10 injects production water through injection conduit 15. The water injector 10 is based on a pumping unit and allows the production water of a seabed separator 20, described below, to be injected through the inlet conduit 15 into the reservoir of the subsea well. An X-tree may be connected to the downstream end of the injection conduit 15.

또, 본 발명에 따르면 생산수를 주입도관(15)으로 이송하는 해저분리기(20)가 상기 물주입기(10)의 상류측에 연결되어 생산수와 생산물을 분리하는 구조를 지닌다. 해저분리기(20)는 분리조(22), 생산수관(24), 오일관(26)을 포함하여 구성된다. 생산수관(24)은 분리된 생산수가 유동하는 배관을 의미하고, 오일관(26)은 중질오일과 같은 생산물이 유동하는 배관을 의미한다. 해저 저류층의 유정유체(well fluid)가 해저분리기(20)에 유입된 후 분리된 생산수는 해수에 버려지기도 하지만 주입도관(15)을 통하여 유정으로 재주입되는 방식을 택한다. 해저분리기(20)는 2상 분리기가 적절하지만 3상 분리기를 배제하는 것은 아니다.According to the present invention, the seabed separator 20 for transferring the produced water to the injection conduit 15 is connected to the upstream side of the water injector 10 to separate the product water and the product. The seabed separator 20 comprises a separating tank 22, a production water pipe 24, and an oil pipe 26. The production water pipe 24 refers to a pipe through which separated product water flows, and the oil pipe 26 refers to a pipe through which products such as heavy oil flow. The separated production water after the well fluid in the bottom reservoir flows into the seabed separator 20 is discharged to the seawater but is injected into the well through the inlet conduit 15. The seabed separator 20 does not exclude a three-phase separator, although a two-phase separator is suitable.

본 발명의 세부 구성으로서, 상기 해저분리기(20)는 분리과정에서 모래와 이물질을 배출하는 샌드치리부(28)를 구비하는 것을 특징으로 한다. 생산수는 생산 대상의 중질오일이 수반된 물로서, 모래, 현탁액(suspension), 무기물 미립자 등이 포함된다. 해저분리기(20)의 샌드치리부(28)는 탑사이드의 중량 등 부담을 경감하여 최적화 설계가 가능하도록 한다.As a detailed construction of the present invention, the seabed separator (20) is characterized by having a sandwich part (28) for discharging sand and foreign matter in the separation process. Produced water is water accompanied by the heavy oil to be produced, including sand, suspension, and inorganic fine particles. The sand-guiding portion 28 of the seabed separator 20 makes it possible to optimize the design by reducing the weight burden of the top side.

또, 본 발명에 따르면 열교환수단이 상기 생산수의 이송과정에서 생산물의 열손실을 방지하는 구조를 지닌다. 통상 생산수는 중질오일보다 비열용량(specific heat capacity)이 더 크다. 따라서 배관 상에서 해저 해수에 노출된 상태로 유동할 때 관로 벽면을 통하여 열손실이 수반된다. 생산수가 유동할 때와 중질오일이 유동할 때를 비교하면 후자에서 더 많은 열손실이 발생하게 된다. 이에 생산수와 생산물의 열교환을 통하여 생산물의 열손실을 방지하는 개념을 적용한다.In addition, according to the present invention, the heat exchange means has a structure for preventing heat loss of the product during the transfer of the produced water. Usually the production water has a higher specific heat capacity than the heavy oil. Therefore, heat loss is accompanied by the pipe wall surface when the pipe is exposed to seawater. Comparing the flow of production water with the flow of heavy oil results in more heat loss in the latter. Therefore, the concept of preventing the heat loss of the product through the heat exchange between the product water and the product is applied.

본 발명의 세부 구성으로서, 상기 열교환수단은 생산물용 내관(31)과 생산수용 외관(32)이 동심으로 배치되는 이중유체관(30)을 사용하는 것을 특징으로 한다. 도 1에서 해저분리기(20)의 생산수관(24)은 외관(32)에 연결되고 오일관(26)은 내관(31)에 연결된 상태를 나타낸다. 이중유체관(30)은 생산물이 유동하는 내관(31)을 충분히 데운 후 양 유체의 온도가 비슷해지는 시점에서 외관(32)의 생산수를 바이패스시켜 물주입기(10)와 주입도관(15)을 통하여 유정에 재주입한다. 내관(31)과 외관(32)은 일반적인 해저 배관용 소재를 사용하여도 무방하지만 내관(31)의 물성은 외관(32)보다 다소 완화될 수 있다. 어느 경우에나 이중유체관(30)의 길이가 길어지면 별도의 스페이서(도시 생략)를 부가하여 동심을 유지한다.As a detailed construction of the present invention, the heat exchanging means is characterized by using a double fluid tube (30) in which an inner product pipe (31) and a production product outer pipe (32) are concentrically arranged. 1 shows a state where the production water pipe 24 of the seabed separator 20 is connected to the outer pipe 32 and the oil pipe 26 is connected to the inner pipe 31. The double fluid tube 30 bypasses the water injector 10 and the inlet conduit 15 by bypassing the product water of the outer tube 32 at the point when the temperatures of the two fluids become similar after warming the inner tube 31 through which the product flows, Lt; / RTI > into the well. The inner pipe 31 and the outer pipe 32 may be made of a material for general underwater piping, but the physical properties of the inner pipe 31 may be somewhat alleviated. In any case, if the length of the double fluid tube 30 becomes long, a separate spacer (not shown) is added to maintain the concentricity.

이때, 상기 이중유체관(30)은 열교환 길이의 변동이 가능하도록 다수의 위치에 개폐 가능한 포트(35)를 구비하는 것을 특징으로 한다. 해저분리기(20)의 용량, 생산물의 물성, 해저의 해수온도 등의 요인에 따라 내관(31)을 감싸는 외관(32)의 길이가 변동된다. 그러나, 외관(32)의 길이 변동을 위해서는 이중유체관(30)을 교체해야 하는 번거로움이 수반된다. 이에 이중유체관(30)의 외관(32)을 다수의 공간으로 구분하여 각각의 포트(35)를 설치하고, 포트(35) 상에는 생산수의 유동을 단속하기 위한 밸브를 설치한다. 이와 같은 구성에 의하면 원하는 거리로 이격된 포트(35)에 생산수관(24)을 연결하는 방식으로 최적의 열교환 길이를 구현하고 변경할 수 있다.At this time, the double fluid tube (30) has a port (35) which can be opened and closed at a plurality of positions so that a heat exchange length can be changed. The length of the outer tube 32 surrounding the inner tube 31 varies depending on factors such as the capacity of the seabed separator 20, the physical properties of the product, and the seawater temperature of the seabed. However, in order to change the length of the outer tube 32, it is troublesome to replace the double tube 30. The outer pipe 32 of the double fluid pipe 30 is divided into a plurality of spaces to provide respective ports 35 and a valve is provided on the port 35 for interrupting the flow of the produced water. According to this structure, the production water pipe 24 is connected to the port 35 spaced by a desired distance, so that the optimal heat exchange length can be realized and changed.

본 발명의 변형예로서, 상기 열교환수단은 내관(31)의 외면 상에 외관(32)을 나선형으로 밀착시킨 구조로 형성되는 것을 특징으로 한다. 도 3에서 내관(31)의 외면에 외관(32)이 일정한 피치로 감겨서 밀착된 상태를 예시한다. 내관(31)에는 오일관(26)이 연결되고 외관(32)에는 생산수관(24)이 연결된다.As a modification of the present invention, the heat exchanging means is formed in a structure in which the outer tube 32 is helically adhered to the outer surface of the inner tube 31. 3 illustrates a state in which the outer tube 32 is wound on the outer surface of the inner tube 31 at a constant pitch and in close contact with each other. An oil pipe 26 is connected to the inner pipe 31 and a production water pipe 24 is connected to the outer pipe 32.

본 발명은 기재된 실시예에 한정되는 것은 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: 물주입기 15: 주입도관
20: 해저분리기 22: 분리조
24: 생산수관 26: 오일관
28: 샌드처리부 30: 이중유체관
31: 내관 32: 외관
35: 포트10: water injector 15: injection conduit
20: seabed separator 22: separator
24: Production water pipe 26: Oil pipe
28: Sand treatment section 30: Double fluid tube
31: inner pipe 32: outer appearance
35: Port

Claims (5)

해저의 유정에 물주입하면서 중질오일을 생산하는 시스템에 있어서:
주입도관(15)을 통하여 생산수를 주입하는 물주입기(10);
상기 물주입기(10)의 상류측에 연결되어 생산수와 생산물을 분리하고, 생산수를 주입도관(15)으로 이송하는 해저분리기(20); 및
상기 생산수의 이송과정에서 생산물의 열손실을 방지하는 열교환수단;을 포함하여 이루어지는 것을 특징으로 하는 해저의 유수분리를 이용한 중질오일 생산 시스템.WHAT IS CLAIMED IS: 1. A system for producing heavy oil while injecting water into a submarine well, comprising:
A water injector 10 for injecting production water through the injection conduit 15;
A seabed separator (20) connected to the upstream side of the water injector (10) for separating the produced water and the product, and delivering the produced water to the injection conduit (15); And
And heat exchange means for preventing heat loss of the product in the process of transferring the produced water. 청구항 1에 있어서,
상기 해저분리기(20)는 분리과정에서 모래와 이물질을 배출하는 샌드치리부(28)를 구비하는 것을 특징으로 하는 해저의 유수분리를 이용한 중질오일 생산 시스템.The method according to claim 1,
Wherein the seabed separator (20) comprises a sand guide (28) for discharging sand and foreign matter during the separation process. 청구항 1에 있어서,
상기 열교환수단은 생산물용 내관(31)과 생산수용 외관(32)이 동심으로 배치되는 이중유체관(30)을 사용하는 것을 특징으로 하는 해저의 유수분리를 이용한 중질오일 생산 시스템.The method according to claim 1,
Wherein the heat exchanging means uses a double fluid pipe (30) in which a product inner pipe (31) and a production receiving outer pipe (32) are concentrically arranged. 청구항 3에 있어서,
상기 이중유체관(30)은 열교환 길이의 변동이 가능하도록 다수의 위치에 개폐 가능한 포트(35)를 구비하는 것을 특징으로 하는 해저의 유수분리를 이용한 중질오일 생산 시스템.The method of claim 3,
Wherein the double fluid pipe (30) is provided with a port (35) that can be opened and closed at a plurality of positions so as to be able to vary the heat exchange length. 청구항 1에 있어서,
상기 열교환수단은 내관(31)의 외면 상에 외관(32)을 나선형으로 밀착시킨 구조로 형성되는 것을 특징으로 하는 해저의 유수분리를 이용한 중질오일 생산 시스템.The method according to claim 1,
Wherein the heat exchanging means is formed in a structure in which the outer pipe (32) is spirally adhered to the outer surface of the inner pipe (31) in a spiral manner.
KR1020150154428A 2015-11-04 2015-11-04 Heavy oil production system using subsea water-oil separation KR20170052227A (en)

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