EP3519671A1 - Vorrichtung zur steuerung des einspritzdrucks zur unterstützten rückgewinnung von öl unter verwendung eines polymers - Google Patents

Vorrichtung zur steuerung des einspritzdrucks zur unterstützten rückgewinnung von öl unter verwendung eines polymers

Info

Publication number
EP3519671A1
EP3519671A1 EP17786962.5A EP17786962A EP3519671A1 EP 3519671 A1 EP3519671 A1 EP 3519671A1 EP 17786962 A EP17786962 A EP 17786962A EP 3519671 A1 EP3519671 A1 EP 3519671A1
Authority
EP
European Patent Office
Prior art keywords
pressure
tube
vortex
bar
bars
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17786962.5A
Other languages
English (en)
French (fr)
Other versions
EP3519671B1 (de
Inventor
René Pich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPCM SA
Original Assignee
SPCM SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SPCM SA filed Critical SPCM SA
Publication of EP3519671A1 publication Critical patent/EP3519671A1/de
Application granted granted Critical
Publication of EP3519671B1 publication Critical patent/EP3519671B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20—Displacing by water
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
    • 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
    • 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
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • 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
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons

Definitions

  • One method is to inject a viscous solution of polymers, particularly polyacrylamide, to mobilize a larger volume of the field.
  • the injected polyacrylamides are sensitive to the mechanical and chemical degradation of the molecular weights, which requires precise handling to maintain their effectiveness.
  • the polymers are in powder form, which is dissolved in water at a fairly high concentration, to reduce the size of so-called maturation tanks, that is to say of dissolution. Indeed, the dissolution time of these powders is of the order of 1 hour.
  • the concentration of these solutions is 10 to 20 grams / liter with high viscosities (1,000 to 10,000 cps).
  • this stock solution should be diluted to 1 to 3 grams per liter to be injected.
  • Various methods are used to avoid mechanical degradation by a sudden drop in pressure, to adapt the injection pressure to the pressure of the specific well.
  • the first is to install a dosing pump per well, and send the stock solution to the top of each well to dilute it with the injection water.
  • the second method consists in diluting the stock solution on the dissolution platform, and sending this diluted solution into each well by separate pipelines.
  • the third method is to completely dilute the stock solution by the injection water set, and to use the water injection lines. This method requires the lowest investments. In this case, the water pump will be set above the pressure of the well with the highest pressure, and the pressure on the other wells will need to be reduced, which normally corresponds to a deterioration that increases as much as the pressure differential is larger. To avoid this degradation, specific pressure reducers are used which must not degrade the polymer.
  • the optimal speed is of the order of 10 meters / second.
  • it is possible to modulate the pressure drop by cutting the tube into various lengths that can be fed or passed through.
  • the vortex pressure reduction with several needle valves can each create a pressure drop of about 5 bars with minor degradation (document US2016 / 0168954).
  • valve heads can be equipped with hydraulic motors in series, allowing the same opening on all the valves with a single adjustment.
  • These systems are heavy for the first, not flexible for the second, rather expensive for the third.
  • the petroleum companies' demand is with a maximum pressure drop of about 50 bar, with little degradation, with a modulation per well of about 10 bar, and a possibility of supplying wells whose pressure varies over time. with a simple and cheap device.
  • the material must therefore be very flexible and easy to handle.
  • each pressure reducer is made by at least one valve, preferably 2 valves, each creating a pressure drop of up to 5 bars without significant degradation of the polymer;
  • the subject of the invention is an apparatus for regulating the injection pressure of a polymeric aqueous solution in a petroleum well, said apparatus consisting of:
  • At least one pressure modulation valve permitting a maximum pressure drop of 5 bar per valve, practically without mechanical degradation, the said valve (s) being connected in series with;
  • a vortex module being a section of tube, closed at one of its ends by a cap pierced with a hole, and adapted to be inserted into the tube;
  • the apparatus having the purpose of being able to reduce the pressure up to 100 bars with a total mechanical degradation of less than 10%.
  • mechanical degradation is meant the degradation of the polymer in the solution injected into the well as measured by the drop in viscosity of the solution after passing through the pressure regulating apparatus.
  • the hole of the lid has a diameter of between 10 and 25 mm.
  • the valves are needle or needle type, although other types of valves also work.
  • the hole is preferably in the central position.
  • Each vortex module may be positioned such that the hole is downstream or upstream of the flow.
  • the vortex modules are all positioned in the same direction with the hole downstream of the flow of the aqueous polymeric solution.
  • modules may, for example, consist of a perforated washer associated with pieces of 10 cm tube.
  • the tube contains between 4 and 20 vortex modules. This allows for losses of up to 20 bar (4 modules), and up to 100 bar (20 modules).
  • the vortex modules are able to be inserted into the tube.
  • the outer diameter of the vortex modules is slightly less than the inside diameter of the removable tube. Preferably, it is less than 1 mm.
  • the pressure modulation valve (s) may be positioned (s) upstream or downstream of the tube containing the vortex modules.
  • the inner diameter of the tube is between 1.27 cm (1 ⁇ 2 inch) and 10.16 cm (4 inches), preferably between 1.27 cm (1 ⁇ 2 inch) and 7.62 cm (3 inches).
  • this equipment can be used in underwater injection, on which the two modulation valves are controlled from the surface by a hydraulic motor, and the tube itself will be fixed by quick clamps, allowing disassembly, a change in the number of modules, a reassembly in a fairly easy way.
  • one or more valves can be installed to modulate the pressure and to restrict or widen the control zone.
  • the subject of the invention is also a process for reducing the injection pressure of an aqueous polymer solution as a function of the pressure of the well, using the apparatus according to the invention, in an enhanced oil recovery process.
  • the pressure drop created in a valve or in a vortex module is at most 5 bars, preferably between 1 and 5 bar.
  • Figure 1 shows a schematic view of the pressure regulating apparatus connectable in series to the main line.
  • the apparatus comprises successively two valves (1) allowing a maximum reduction of pressure of 5 bars each, two pressure gauges (2) allowing a pressure control, and a removable tube (3) containing 10 vortex modules (4), each allowing a maximum pressure reduction of 5 bar.
  • this device is capable of regulating the pressure up to 60 bar.
  • FIG. 2 is a diagrammatic view of a part of the removable module (3) of 60 mm internal diameter containing two vortex modules (4) 100 mm long, 59 mm outside diameter, 50 mm inside diameter; each provided with a central hole with a diameter of 14 mm.
  • a pressure reducer is constructed comprising: Two 2-inch needle valves with pressure gauges allowing adjustment between 1 and 5 bars of pressure drop;
  • the covers are pierced at 14 mm of passage to create a vortex pressure drop of 5 bar for 19 m3 / hour.
  • the tube is put in 5 modules, and the pressure can be modulated with the two valves from 125 to 135 bars.
  • the tube is put in 6 modules, and can be modulated from 120 to 130 bars.
  • the degradation observed is less than 5% even with a pressure difference of 50 bars.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Polymerisation Methods In General (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cyclones (AREA)
EP17786962.5A 2016-10-03 2017-09-28 Vorrichtung zur steuerung des einspritzdrucks zur unterstützten rückgewinnung von öl unter verwendung eines polymers Active EP3519671B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1659515A FR3057011B1 (fr) 2016-10-03 2016-10-03 Appareil de regulation de pression d'injection pour la recuperation assistee du petrole par polymere
PCT/FR2017/052642 WO2018065699A1 (fr) 2016-10-03 2017-09-28 Appareil de regulation de pression d'injection pour la recuperation assistee du petrole par polymere

Publications (2)

Publication Number Publication Date
EP3519671A1 true EP3519671A1 (de) 2019-08-07
EP3519671B1 EP3519671B1 (de) 2020-12-16

Family

ID=57906743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17786962.5A Active EP3519671B1 (de) 2016-10-03 2017-09-28 Vorrichtung zur steuerung des einspritzdrucks zur unterstützten rückgewinnung von öl unter verwendung eines polymers

Country Status (9)

Country Link
US (1) US10760368B2 (de)
EP (1) EP3519671B1 (de)
CN (1) CN109790746B (de)
AR (1) AR109748A1 (de)
BR (1) BR112019006027B1 (de)
FR (1) FR3057011B1 (de)
MX (1) MX2019003591A (de)
RU (1) RU2742288C2 (de)
WO (1) WO2018065699A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017165403A1 (en) 2016-03-21 2017-09-28 Nueon Inc. Porous mesh spectrometry methods and apparatus

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477467A (en) * 1967-10-05 1969-11-11 Dow Chemical Co Adjustable pressure reducing valve
US3608631A (en) * 1967-11-14 1971-09-28 Otis Eng Co Apparatus for pumping tools into and out of a well
US4510993A (en) * 1982-03-25 1985-04-16 Marathon Oil Company Flow control apparatus and method
DE3222539C2 (de) * 1982-06-16 1984-07-26 Drägerwerk AG, 2400 Lübeck Absaugadapter und Absauggerätesatz unter Verwendung dieses Adapters
US4782847A (en) * 1982-06-23 1988-11-08 Marathon Oil Company Flow control apparatus and method
RU2012780C1 (ru) * 1991-03-21 1994-05-15 Институт проблем транспорта энергоресурсов Способ дозирования реагента в скважину
US7598333B1 (en) * 2002-04-10 2009-10-06 Conocophillips Company Low-viscosity drag reducer
CN201412679Y (zh) * 2009-06-01 2010-02-24 西安华阳能源科技工程有限公司 用在油气输送管道上的径流式流体涡流发生器
RU2010124468A (ru) * 2010-06-15 2011-12-20 Загир Агзамнурович Шарифуллин (RU) Способ предотвращения катастрофического развития аварийных ситуаций при нарушении целостности трубопроводов при их эксплуатации, устройство и клапаны-отсекатели для осуществления способа
FR2962153B1 (fr) * 2010-07-02 2013-04-05 Total Sa Vanne de controle de debit pour les solutions de polymeres
US8801859B2 (en) * 2011-05-04 2014-08-12 Renmatix, Inc. Self-cleaning apparatus and method for thick slurry pressure control
US8607869B2 (en) * 2011-05-20 2013-12-17 Global Environmental Solutions, Inc. Linear pressure reducer for regulating injection pressure in an enhanced oil recovery system
CN103244706B (zh) * 2013-05-21 2015-02-18 哈尔滨博华科技有限公司 套筒式低剪切母液流量调节装置
WO2015092334A2 (fr) * 2013-12-19 2015-06-25 Total Sa Vanne de contrôle de débit comprenant une pluralité de tubes à section géométriquement variable
FR3026773B1 (fr) * 2014-10-01 2019-03-29 S.P.C.M. Sa Appareil de controle de pression d'injection dans la recuperation assistee du petrole offshore
CN104806213B (zh) * 2015-03-10 2017-07-11 东北石油大学 新型分压注入工具
GB201504878D0 (en) * 2015-03-23 2015-05-06 Algipharma As Use of alginate oligomers and CFTR modulators in the treatment of conditions associated with CFTR dysfuntion
FR3046194B1 (fr) * 2015-12-23 2018-01-05 S.P.C.M. Sa Appareil de regulation de pression d'injection dans la recuperation assistee du petrole

Also Published As

Publication number Publication date
FR3057011B1 (fr) 2018-11-02
EP3519671B1 (de) 2020-12-16
US10760368B2 (en) 2020-09-01
BR112019006027A2 (pt) 2019-06-18
US20190338616A1 (en) 2019-11-07
RU2019109173A3 (de) 2020-11-26
WO2018065699A1 (fr) 2018-04-12
CN109790746B (zh) 2021-11-23
RU2019109173A (ru) 2020-09-29
CN109790746A (zh) 2019-05-21
BR112019006027B1 (pt) 2022-12-06
MX2019003591A (es) 2019-06-10
RU2742288C2 (ru) 2021-02-04
AR109748A1 (es) 2019-01-16
FR3057011A1 (fr) 2018-04-06

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