BR0013936A - Method for determining the start pressure of asphaltene precipitation in the formation fluid; and well bore equipment for determining the start pressure of asphaltene precipitation in a fluid obtained from a formation - Google Patents

Method for determining the start pressure of asphaltene precipitation in the formation fluid; and well bore equipment for determining the start pressure of asphaltene precipitation in a fluid obtained from a formation

Info

Publication number
BR0013936A
BR0013936A BR0013936-0A BR0013936A BR0013936A BR 0013936 A BR0013936 A BR 0013936A BR 0013936 A BR0013936 A BR 0013936A BR 0013936 A BR0013936 A BR 0013936A
Authority
BR
Brazil
Prior art keywords
pressure
asphaltene precipitation
determining
sample
fluid
Prior art date
Application number
BR0013936-0A
Other languages
Portuguese (pt)
Inventor
Oliver C Mullins
Original Assignee
Schlumberger Surenco 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 Schlumberger Surenco Sa filed Critical Schlumberger Surenco Sa
Publication of BR0013936A publication Critical patent/BR0013936A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2811—Oils, i.e. hydrocarbon liquids by measuring cloud point or pour point of oils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2823—Raw oil, drilling fluid or polyphasic mixtures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

"MéTODO PARA A DETERMINAçãO DA PRESSãO DE INìCIO DA PRECIPITAçãO DE ASFALTENO NO FLUIDO DE FORMAçãO; E EQUIPAMENTO DE FURO DE POçO PARA A DETERMINAçãO DA PRESSãO DE INìCIO DA PRECIPITAçãO DE ASFALTENO EM UM FLUIDO OBTIDO A PARTIR DE UMA FORMAçãO". é proporcionado um processo para a determinação da pressão de início da precipitação de asfalteno no fluido da formação. Em uma modalidade o processo inclui as etapas de: (a) isolar uma amostra ao longo do furo do fluido da formação; (b) iluminar a amostra com luz UV; (c) medir a energia ótica que emana da amostra; (d) reduzir a pressão sobre a amostra; (e) repetir as etapas de (b) até (d); e (f) ajustar a pressão de início da precipitação de asfalteno igual à pressão sobre a amostra quando uma abrupta alteração na energia ótica é detectada. Um analisador ótico ao longo do furo inclui uma lâmpada de UV; um pistão adaptado para diminuir a pressão do fluido em uma região de célula ótica mediante o aumento do volume de uma amostra isolada do fluido da formação; e um sensor de pressão para sensoriar a pressão da amostra isolada."METHOD FOR DETERMINING THE PRESSURE OF STARTING THE ASPHALTENE PRECIPITATION IN THE FORMATION FLUID; AND WELL HOLE EQUIPMENT FOR THE DETERMINATION OF THE STARTING PRESSURE OF THE ASPHALTENE PRECIPITATION IN A GETTED FLUID. a process is provided for determining the pressure of starting asphaltene precipitation in the formation fluid. In one embodiment, the process includes the steps of: (a) isolating a sample along the formation fluid hole; (b) illuminate the sample with UV light; (c) measure the optical energy emanating from the sample; (d) reducing the pressure on the sample; (e) repeat steps from (b) to (d); and (f) adjust the start pressure of asphaltene precipitation equal to the pressure on the sample when an abrupt change in optical energy is detected. An optical analyzer along the hole includes a UV lamp; a piston adapted to decrease fluid pressure in an optical cell region by increasing the volume of an isolated sample of the formation fluid; and a pressure sensor for sensing the pressure of the isolated sample.

BR0013936-0A 1999-09-14 2000-09-05 Method for determining the start pressure of asphaltene precipitation in the formation fluid; and well bore equipment for determining the start pressure of asphaltene precipitation in a fluid obtained from a formation BR0013936A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39514199A 1999-09-14 1999-09-14
PCT/US2000/024166 WO2001020322A1 (en) 1999-09-14 2000-09-05 Method and device for determining asphaltene precipitation onset pressure

Publications (1)

Publication Number Publication Date
BR0013936A true BR0013936A (en) 2002-09-24

Family

ID=23561872

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0013936-0A BR0013936A (en) 1999-09-14 2000-09-05 Method for determining the start pressure of asphaltene precipitation in the formation fluid; and well bore equipment for determining the start pressure of asphaltene precipitation in a fluid obtained from a formation

Country Status (4)

Country Link
AU (1) AU7106700A (en)
BR (1) BR0013936A (en)
MX (1) MXPA02002696A (en)
WO (1) WO2001020322A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6782970B2 (en) 2002-04-25 2004-08-31 Schlumberger Technology Corporation Acoustic source using a shaftless electrical hammer
US20030223068A1 (en) 2002-06-04 2003-12-04 Baker Hughes Incorporated Method and apparatus for a high resolution downhole spectrometer
US7084392B2 (en) 2002-06-04 2006-08-01 Baker Hughes Incorporated Method and apparatus for a downhole fluorescence spectrometer
US7075063B2 (en) 2002-06-26 2006-07-11 Schlumberger Technology Corporation Determining phase transition pressure of downhole retrograde condensate
US7002142B2 (en) 2002-06-26 2006-02-21 Schlumberger Technology Corporation Determining dew precipitation and onset pressure in oilfield retrograde condensate
US7733490B2 (en) 2007-11-16 2010-06-08 Schlumberger Technology Corporation Apparatus and methods to analyze downhole fluids using ionized fluid samples
US8230916B2 (en) 2007-11-16 2012-07-31 Schlumberger Technology Corporation Apparatus and methods to analyze downhole fluids using ionized fluid samples
GB2459470B (en) 2008-04-23 2010-07-21 Schlumberger Holdings Solvent assisted oil recovery
GB2459471B (en) 2008-04-23 2010-07-14 Schlumberger Holdings Forecasting asphaltic precipitation
US9018599B2 (en) * 2010-06-04 2015-04-28 Dow Global Technologies Llc Fluorescence method for determining occlusion in enclosed spaces
WO2015164713A1 (en) * 2014-04-25 2015-10-29 Schlumberger Canada Limited Method and system for determining asphaltene onset pressure using a wavelength dependent signal
US9568459B2 (en) 2014-04-25 2017-02-14 Schlumberger Technology Corporation Method and system for determining asphaltene onset pressure using a using depressurization and pressurization
GB2543994B (en) * 2014-07-23 2020-10-07 Baker Hughes Inc System and method for downhole organic scale monitoring and intervention in a production well
BR112017001305A2 (en) 2014-07-23 2017-11-14 Baker Hughes Inc system and method for monitoring inorganic downhole scale and intervening in a production well
US9689858B2 (en) 2015-10-21 2017-06-27 Schlumberger Technology Corporation Method and apparatus for measuring asphaltene onset conditions and yields of crude oils
EP3190400A1 (en) * 2016-01-08 2017-07-12 Openfield A downhole fluid properties analysis probe, tool and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517024A (en) * 1994-05-26 1996-05-14 Schlumberger Technology Corporation Logging-while-drilling optical apparatus
US5691809A (en) * 1995-09-06 1997-11-25 Marathon Oil Company Method and apparatus for studying organic deposition
US5662166A (en) * 1995-10-23 1997-09-02 Shammai; Houman M. Apparatus for maintaining at least bottom hole pressure of a fluid sample upon retrieval from an earth bore

Also Published As

Publication number Publication date
WO2001020322A1 (en) 2001-03-22
MXPA02002696A (en) 2002-07-30
AU7106700A (en) 2001-04-17

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law

Free format text: REFERENTE A 3A ANUIDADE.

B08G Application fees: restoration
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements