US20200018140A1 - Method for Increasing Petroleum Yield - Google Patents

Method for Increasing Petroleum Yield Download PDF

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Publication number
US20200018140A1
US20200018140A1 US16/335,260 US201716335260A US2020018140A1 US 20200018140 A1 US20200018140 A1 US 20200018140A1 US 201716335260 A US201716335260 A US 201716335260A US 2020018140 A1 US2020018140 A1 US 2020018140A1
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United States
Prior art keywords
oil
electrical
water
production well
steel
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.)
Abandoned
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US16/335,260
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English (en)
Inventor
Arnim Kaus
Wolf Boening
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.)
Geo Exploration Solutions Fzc
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Geo Exploration Solutions Fzc
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Filing date
Publication date
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Assigned to GEO EXPLORATION SOLUTIONS FZC reassignment GEO EXPLORATION SOLUTIONS FZC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAUS, ARNIM, BOENING, WOLF
Publication of US20200018140A1 publication Critical patent/US20200018140A1/en
Abandoned legal-status Critical Current

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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
    • E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
    • 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
    • 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
    • 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
    • E21B43/003—Vibrating earth formations
    • 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
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • 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
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
    • 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
    • E21B43/25—Methods for stimulating production

Definitions

  • the invention relates to a combined electrical-hydraulic oil extraction method for increasing the oil yield from conventional petroleum deposits made up of water- and oil-bearing rock formations.
  • This involves using existing production wells as electrodes and counter electrodes in order to feed controlled functionally variable low-frequency alternating current into the producing zone at the same time as extraction is being performed by pumping.
  • additional amounts of oil are mobilized, in particular from the finely porous regions of rock.
  • the method can be used in particular when there is increasing incursion of water during production.
  • WO 2012/074510 A1 or U.S. Pat. No. 4,084,638 A1 disclose tertiary electrical methods, which use direct current or current pulses in order to lower the viscosity of heavy oil by resistive heating and thereby improve the flowability. Additional well internals in the form of independent electrodes and cable feeders down to the depths of the producing zone are required for this. In the case of a method known from U.S. Pat. No. 4,662,438 A1, alternating current is fed in by means of a pair of electrodes within an individual production well or independent bores for the electrodes have to be sunk into the producing zone.
  • the invention relates to an electrical-hydraulic method for increasing the oil yield from petroleum deposits with water- and oil-bearing rock formations in which
  • the object of the invention is to provide an electrical-hydraulic method and a device suitable for increasing the petroleum yield from petroleum deposits with water- and oil-bearing rock formations.
  • FIG. 1 shows a schematic representation of a section of the components of the device according to the invention and also the operating principle of the method and
  • FIG. 2 shows a representation of an oil fraction/time diagram with a representation of the result of using the method.
  • the existing steel-tube casing in a production well 1 is used as an electrical connecting line 11 and electrode 10 and a remote metal structure 2 is used as a counter electrode, in order to feed low-frequency electrical alternating current into the water- and oil-bearing rock formation 4 of a petroleum deposit by means of a salty electrolytically conductive water/oil liquid mixture 9 b in the well and the inflow zones 3 , whereby an oscillating motion of the cation and anion charge carriers 20 contained in the salty water is brought about there.
  • the functionally and frequency-variable alternating current is generated from a three-phase power supply 16 by a power converter 15 , which is set up on the surface above ground 12 and is connected via electrical cable connections 17 to electrical contact terminals 14 on the drill head of the production well 1 and the head of the metal-stake counter electrode.
  • a power converter 15 which is set up on the surface above ground 12 and is connected via electrical cable connections 17 to electrical contact terminals 14 on the drill head of the production well 1 and the head of the metal-stake counter electrode.
  • an electrical insulation of the following three component parts is required: the steel-tube connecting line 11 , a recovery pipeline 5 and a recovery flow 9 a .
  • the latter acts as an insulating interruption of the electronic conductivity of the metallic recovery pipeline 5 , on the one hand because of individual plastic components and on the other hand because of the operation of the pump itself, the electrolytic conductivity of the liquid recovery flow 9 a being interrupted by the chopping into air-separated volumetric portions, so that the hydraulic recovery flow 9 a above the recovery pump 18 can no longer carry an electrical current.
  • a hydraulic flow field is overlaid with an electrical alternating field, and correspondingly the water/oil volumetric flow 19 is overlaid with an oscillating flow comprising cation and anion charge carriers 20 .
  • FIG. 2 shows the variation over time of the measured oil volume fraction of the water/oil recovery flow 9 a that is extracted from a production well 1 when the pump is operating, to be specific before, during and after a stimulation phase 21 , during which the electrical excitation according to the method was applied.
  • the oil fraction data curve 22 has a downward trend, as typically encountered as a result of the increasing incursion of water in the case of primary and secondary oil extraction measures.
  • the trend can be statistically represented by a dashed regression line 24 , which indicates at the zero percent line the theoretically temporal end of the extraction of oil when exclusively using a pump, from which the maximum oil recovery volume (petroleum yield) from the moderately and highly permeable regions of the rock formation 4 can be calculated.
  • the oil fraction of the overall water/oil delivery flow is increased with respect to the regression line 24 or with respect to the zero percent line during and after the stimulation phase 21 .
  • the additional volume of oil extracted per unit of time that is substantially recovered from the finely porous and low-permeable regions of the rock formation is obtained from the corresponding differential oil fraction 23 after multiplication by the constant overall water/oil production rate.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US16/335,260 2016-09-27 2017-08-17 Method for Increasing Petroleum Yield Abandoned US20200018140A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016118282.6A DE102016118282A1 (de) 2016-09-27 2016-09-27 Verfahren zur Steigerung der Erdölausbeute
DE102016118282.6 2016-09-27
PCT/EP2017/070888 WO2018059829A1 (fr) 2016-09-27 2017-08-17 Procédé permettant d'augmenter le rendement pétrolifère

Publications (1)

Publication Number Publication Date
US20200018140A1 true US20200018140A1 (en) 2020-01-16

Family

ID=59649716

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/335,260 Abandoned US20200018140A1 (en) 2016-09-27 2017-08-17 Method for Increasing Petroleum Yield

Country Status (4)

Country Link
US (1) US20200018140A1 (fr)
DE (1) DE102016118282A1 (fr)
RU (1) RU2712980C1 (fr)
WO (1) WO2018059829A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11434313B2 (en) 2020-12-16 2022-09-06 Canon Kabushiki Kaisha Curable composition for making cured layer with high thermal stability
CN115840868A (zh) * 2022-12-06 2023-03-24 西南石油大学 一种改进的采油工程模型计算分析方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108961969B (zh) * 2018-06-11 2021-03-02 武汉海王机电工程技术有限公司 一种油井油气水三相气举采油工艺模拟装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417823A (en) * 1966-12-22 1968-12-24 Mobil Oil Corp Well treating process using electroosmosis
US4199025A (en) 1974-04-19 1980-04-22 Electroflood Company Method and apparatus for tertiary recovery of oil
US4084638A (en) 1975-10-16 1978-04-18 Probe, Incorporated Method of production stimulation and enhanced recovery of oil
US4362610A (en) 1978-06-08 1982-12-07 Carpenter Neil L Apparatus for recovery of hydrocarbons from tar-sands
US4444255A (en) 1981-04-20 1984-04-24 Lloyd Geoffrey Apparatus and process for the recovery of oil
US4662438A (en) 1985-07-19 1987-05-05 Uentech Corporation Method and apparatus for enhancing liquid hydrocarbon production from a single borehole in a slowly producing formation by non-uniform heating through optimized electrode arrays surrounding the borehole
CA2015318C (fr) 1990-04-24 1994-02-08 Jack E. Bridges Sources d'alimentation pour chauffage electrique de fond
RU2204696C1 (ru) * 2001-09-25 2003-05-20 Открытое акционерное общество "Научно-технологическая компания "Российский межотраслевой научно-технический комплекс "Нефтеотдача" Забойный водонагреватель для нагнетательной скважины
US7325604B2 (en) * 2002-10-24 2008-02-05 Electro-Petroleum, Inc. Method for enhancing oil production using electricity
DE102010008779B4 (de) 2010-02-22 2012-10-04 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Gewinnung, insbesondere In-Situ-Gewinnung, einer kohlenstoffhaltigen Substanz aus einer unterirdischen Lagerstätte
US20130277046A1 (en) 2010-11-30 2013-10-24 Electro-Petroleum, Inc. Method for enhanced oil recovery from carbonate reservoirs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11434313B2 (en) 2020-12-16 2022-09-06 Canon Kabushiki Kaisha Curable composition for making cured layer with high thermal stability
CN115840868A (zh) * 2022-12-06 2023-03-24 西南石油大学 一种改进的采油工程模型计算分析方法

Also Published As

Publication number Publication date
RU2712980C1 (ru) 2020-02-03
WO2018059829A1 (fr) 2018-04-05
DE102016118282A1 (de) 2018-03-29

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