WO1991013232A3 - Procede et appareil pour nettoyer des solides particulaires - Google Patents

Procede et appareil pour nettoyer des solides particulaires Download PDF

Info

Publication number
WO1991013232A3
WO1991013232A3 PCT/US1991/001291 US9101291W WO9113232A3 WO 1991013232 A3 WO1991013232 A3 WO 1991013232A3 US 9101291 W US9101291 W US 9101291W WO 9113232 A3 WO9113232 A3 WO 9113232A3
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
solvent
cleaning zone
solids
contaminants
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.)
Ceased
Application number
PCT/US1991/001291
Other languages
English (en)
Other versions
WO1991013232A2 (fr
Inventor
David A Flanigan
Robert E Williams
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.)
ConocoPhillips Co
Original Assignee
Conoco Inc
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 Conoco Inc filed Critical Conoco Inc
Publication of WO1991013232A2 publication Critical patent/WO1991013232A2/fr
Publication of WO1991013232A3 publication Critical patent/WO1991013232A3/fr
Priority to NO92923349A priority Critical patent/NO923349L/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/028—Flow sheets
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/005—Waste disposal systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Treatment Of Sludge (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Enlèvement ou nettoyage de contaminants solides particulaires. Le procédé comprend au moins deux aires de nettoyage successives (A, B), dont chacune comporte deux étapes. Au cours de l'étape initiale (2, 12), les solides contaminés sont traités avec un solvant qui dissout les contaminants sous la forme de boue. A l'étape suivante (7, 17), la boue est centrifugée pour séparer les solides du solvant contenant des contaminants dissous (3). La configuration globale d'écoulement est conçue de façon que du solvant frais (11) est introduit dans la dernière aire de nettoyage (B), et dirige le solvant séparé contenant les contaminants dissous (3) de la dernière aire de nettoyage (B) vers l'aire de nettoyage la précédant immédiatement, et répète la séquence à partir de l'aire de nettoyage initiale (A). De cette manière, le flux du solvant d'une aire de nettoyage à l'autre est à contre-courant du flux des solides contaminés, dans chacune des aires de nettoyage, tandis que le flux du solvant et des solides contaminés sont cocourants. La présente invention offre une plus grande efficacité de nettoyage pour un volume de solvant donné.
PCT/US1991/001291 1990-02-28 1991-02-28 Procede et appareil pour nettoyer des solides particulaires Ceased WO1991013232A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO92923349A NO923349L (no) 1990-02-28 1992-08-27 Fremgangsmaate og innretning for rensing av partikkelformede faststoffer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/487,350 US5080721A (en) 1990-02-28 1990-02-28 Process for cleaning particulate solids
US487,350 1990-02-28

Publications (2)

Publication Number Publication Date
WO1991013232A2 WO1991013232A2 (fr) 1991-09-05
WO1991013232A3 true WO1991013232A3 (fr) 1991-10-03

Family

ID=23935384

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/001291 Ceased WO1991013232A2 (fr) 1990-02-28 1991-02-28 Procede et appareil pour nettoyer des solides particulaires

Country Status (6)

Country Link
US (1) US5080721A (fr)
EP (1) EP0517807A1 (fr)
CN (1) CN1057412A (fr)
AU (1) AU7497491A (fr)
CA (1) CA2076636A1 (fr)
WO (1) WO1991013232A2 (fr)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE18341T1 (de) * 1980-07-25 1986-03-15 Sydney Joseph Bush Vorrichtung zum tragen eines kindes.
GB2239470B (en) * 1989-11-28 1993-12-15 Rig Technology Ltd Cleaning of cuttings from drilling operations
WO1992013664A1 (fr) * 1991-02-01 1992-08-20 Kaufman Sydney M Procede de recyclage de particules de metal
US5160441A (en) * 1991-05-17 1992-11-03 Lundquist Lynn C Method of continuous centrifugal removal of residual liquid waste from recyclable container material
CA2054841C (fr) * 1991-10-31 1999-12-07 Erick Schmidt Methodes de traitement de dechets infectieux
US5195847A (en) * 1992-01-15 1993-03-23 Guymon E Park Process for cleaning drilling mud contaminated with hydrocarbons
US5484201A (en) * 1992-01-31 1996-01-16 Goolsbee; James A. System for the recovery of oil and catalyst from a catalyst/oil mix
US5302211A (en) * 1992-08-19 1994-04-12 James W. Bunger & Assoc., Inc. Process for the remediation of contaminated soil
US5439597A (en) * 1993-06-11 1995-08-08 Unique Products, Inc. Method for removing chemical contaminants from material and apparatus for same
US5454878A (en) * 1994-02-17 1995-10-03 Lockheed Idaho Technologies Company Method for removing hydrocarbon contaminants from solid materials
US5795400A (en) * 1994-05-16 1998-08-18 Berger; Mitchell H. Method for recycling coolant for a cutting machine
US5538646A (en) * 1995-01-20 1996-07-23 Middleton; Richard Method and system for removing oil from oil-absorbent material
US6132630A (en) * 1998-02-17 2000-10-17 Tuboscope Vetco International Inc. Methods for wastewater treatment
US6036870A (en) * 1998-02-17 2000-03-14 Tuboscope Vetco International, Inc. Method of wellbore fluid recovery using centrifugal force
US6267716B1 (en) * 1998-10-23 2001-07-31 Baker Hughes Incorporated Low shear treatment for the removal of free hydrocarbons, including bitumen, from cuttings
IT1313622B1 (it) 1999-09-09 2002-09-09 Enitecnologie Spa Metodo per la rimozione ed il recupero della componente oleosa dadetriti di perforazione
US20030037922A1 (en) * 2001-08-27 2003-02-27 Apv North America, Inc. System and method for processing oil-based mud cuttings
US20050242003A1 (en) * 2004-04-29 2005-11-03 Eric Scott Automatic vibratory separator
US7276625B2 (en) * 2002-10-15 2007-10-02 Eastman Chemical Company Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
US8312995B2 (en) 2002-11-06 2012-11-20 National Oilwell Varco, L.P. Magnetic vibratory screen clamping
US8172740B2 (en) * 2002-11-06 2012-05-08 National Oilwell Varco L.P. Controlled centrifuge systems
US7132566B2 (en) * 2003-09-22 2006-11-07 Eastman Chemical Company Process for the purification of a crude carboxylic acid slurry
US7074954B2 (en) * 2002-12-09 2006-07-11 Eastman Chemical Company Process for the oxidative purification of terephthalic acid
US7161027B2 (en) 2002-12-09 2007-01-09 Eastman Chemical Company Process for the oxidative purification of terephthalic acid
WO2004052821A1 (fr) * 2002-12-09 2004-06-24 Eastman Chemical Company Procede de purification oxydative d'un acide terephtalique
US7193109B2 (en) 2003-03-06 2007-03-20 Eastman Chemical Company Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
US20050059709A1 (en) * 2003-09-15 2005-03-17 Meythaler Jay M. Treatment of a neuropathy with rapid release aminopyridine
US7214760B2 (en) * 2004-01-15 2007-05-08 Eastman Chemical Company Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
US8118172B2 (en) * 2005-11-16 2012-02-21 National Oilwell Varco L.P. Shale shakers with cartridge screen assemblies
US20070179312A1 (en) * 2006-02-02 2007-08-02 O'meadhra Ruairi Seosamh Process for the purification of a crude carboxylic axid slurry
EP2021133A1 (fr) 2006-05-26 2009-02-11 National Oilwell Varco, L.P. Appareil et procédé pour séparer des matières solides d'un liquide chargé de matières solides
US20070278012A1 (en) * 2006-05-31 2007-12-06 Donald Roy Smith Apparatus for separating solids from liquids
US20080053484A1 (en) * 2006-08-31 2008-03-06 Donald Roy Smith Apparatus and method for cleaning solids from a tank
US20080083566A1 (en) 2006-10-04 2008-04-10 George Alexander Burnett Reclamation of components of wellbore cuttings material
US8231010B2 (en) 2006-12-12 2012-07-31 Varco I/P, Inc. Screen assemblies and vibratory separators
US7897050B2 (en) * 2007-04-12 2011-03-01 Accudyne Systems, Inc. Dense gas means for extraction of a solute from solids
US8622220B2 (en) * 2007-08-31 2014-01-07 Varco I/P Vibratory separators and screens
US7980392B2 (en) 2007-08-31 2011-07-19 Varco I/P Shale shaker screens with aligned wires
US7790646B2 (en) * 2007-12-20 2010-09-07 Chevron U.S.A. Inc. Conversion of fine catalyst into coke-like material
US7737068B2 (en) * 2007-12-20 2010-06-15 Chevron U.S.A. Inc. Conversion of fine catalyst into coke-like material
US20090145836A1 (en) * 2007-12-11 2009-06-11 Paul William Dufilho Vibratory separator screens & seals
US8765622B2 (en) * 2007-12-20 2014-07-01 Chevron U.S.A. Inc. Recovery of slurry unsupported catalyst
US20090159495A1 (en) * 2007-12-20 2009-06-25 Chevron U.S.A. Inc. Heavy oil conversion
US8722556B2 (en) * 2007-12-20 2014-05-13 Chevron U.S.A. Inc. Recovery of slurry unsupported catalyst
US8133164B2 (en) * 2008-01-14 2012-03-13 National Oilwell Varco L.P. Transportable systems for treating drilling fluid
US8455680B2 (en) 2008-01-15 2013-06-04 Eastman Chemical Company Carboxylic acid production process employing solvent from esterification of lignocellulosic material
US8614350B2 (en) 2008-01-15 2013-12-24 Eastman Chemical Company Carboxylic acid production process employing solvent from esterification of lignocellulosic material
ITMI20080581A1 (it) * 2008-04-03 2009-10-04 Eni Spa Processo per il trattamento di residui oleosi provenienti dall'industria petrolifera
US20100038143A1 (en) * 2008-08-14 2010-02-18 George Alexander Burnett Drill cuttings treatment systems
US9073104B2 (en) 2008-08-14 2015-07-07 National Oilwell Varco, L.P. Drill cuttings treatment systems
US20110168208A1 (en) * 2008-09-12 2011-07-14 Akzo Nobel N.V. Method of cleaning oil contaminated solid particulates
US8556083B2 (en) * 2008-10-10 2013-10-15 National Oilwell Varco L.P. Shale shakers with selective series/parallel flow path conversion
US9079222B2 (en) * 2008-10-10 2015-07-14 National Oilwell Varco, L.P. Shale shaker
US8113356B2 (en) * 2008-10-10 2012-02-14 National Oilwell Varco L.P. Systems and methods for the recovery of lost circulation and similar material
US7935261B2 (en) * 2008-11-24 2011-05-03 Arkansas Reclamation Company, Llc Process for treating waste drilling mud
US7867399B2 (en) * 2008-11-24 2011-01-11 Arkansas Reclamation Company, Llc Method for treating waste drilling mud
US20100181265A1 (en) * 2009-01-20 2010-07-22 Schulte Jr David L Shale shaker with vertical screens
CN101812979A (zh) * 2010-04-28 2010-08-25 中国海洋石油总公司 含油钻屑逆流洗涤脱油处理方法
CN101832116A (zh) * 2010-04-28 2010-09-15 中国海洋石油总公司 含油钻屑逆流洗涤脱油处理装置
US20130233350A1 (en) 2012-03-07 2013-09-12 Michael Tomkins Method and system for removing hydrocarbon deposits from heat exchanger tube bundles
US20130269933A1 (en) * 2012-04-13 2013-10-17 Schlumberger Technology Corporation Method and apparatus to prepare drill cuttings for petrophysical analysis by infrared spectroscopy and gas sorption
US10036217B2 (en) 2012-07-27 2018-07-31 Mbl Partners, Llc Separation of drilling fluid
US9896918B2 (en) 2012-07-27 2018-02-20 Mbl Water Partners, Llc Use of ionized water in hydraulic fracturing
US9643111B2 (en) 2013-03-08 2017-05-09 National Oilwell Varco, L.P. Vector maximizing screen
CN105089564A (zh) * 2014-12-12 2015-11-25 成都西石大油田技术服务有限公司 一种含油污泥及钻屑处理技术
MX2018002529A (es) 2015-09-01 2019-02-26 Recover Energy Services Inc Centrifugadora hermetica al gas para la separacion de cov.
CN105441104B (zh) * 2015-11-09 2018-01-02 安东环保技术有限公司 溶剂法油基钻屑萃取装置及方法
CN105413851B (zh) * 2015-12-11 2018-12-28 大连远东新材料科技有限公司 一种分离含油金属粉末的方法及装置
WO2017149494A1 (fr) 2016-03-03 2017-09-08 Recover Energy Services Inc. Décanteur horizontal étanche aux gaz pour lavage de déchets solides de forage
CN105778973B (zh) * 2016-05-11 2018-03-27 西南石油大学 一种萃取法处理油基钻屑的装置
CA3223397C (fr) 2016-09-12 2026-04-14 Vermeer Manufacturing Company Systemes de transfert destines a la reception et au transport d'un materiau
US10238994B2 (en) * 2016-11-03 2019-03-26 Recover Energy Services Inc. Diluent treated drilling waste material recovery process and system
US10486210B2 (en) 2017-05-16 2019-11-26 Recover Energy Services Inc. Solvent blend process and products
US10619434B2 (en) 2017-06-01 2020-04-14 Recover Energy Services Inc. Wet dryer for diluent recovery
CN107352719B (zh) * 2017-09-12 2020-05-19 内江师范学院 一种油气田钻井含油钻屑的资源化处理方法
CN110388214B (zh) * 2019-07-23 2020-11-24 黑龙江科技大学 一种巷道围岩高温加热强化的支护方法和装置
US11273475B2 (en) * 2020-02-12 2022-03-15 Clean Planet Technology Inc. High rate hydrocarbon solvent extraction system, process and method
DE102020109403B4 (de) 2020-03-03 2026-03-26 Akw Apparate + Verfahren Gmbh Verfahren zur Entfernung von Feinstpartikeln aus Abwasserströmen
CN116765031A (zh) * 2023-06-25 2023-09-19 四川中科兴业高新材料有限公司 一种聚苯硫醚树脂循环洗涤装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368099A (fr) * 1963-09-09 1964-07-24 Metallgesellschaft Ag Procédé pour le traitement par extraction de matériaux pâteux, pulpeux ou finement pulvérisés
US4288329A (en) * 1979-11-09 1981-09-08 Duval Leonard A Method and apparatus for cleaning fine waste material mixed with oil and water
WO1982001737A1 (fr) * 1980-11-21 1982-05-27 Moir James A Procede de traitement de boues ou de debris de forage contamines par le petrole avant leur reutilisation ou elimination
DE3213268A1 (de) * 1982-04-08 1983-10-20 Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg Verfahren zum waschen groeberer partikel erbohrten gutes

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266586A (en) * 1938-02-15 1941-12-16 Branum Elbert Sampling apparatus
US2965522A (en) * 1956-06-25 1960-12-20 Shell Oil Co Washing subdivided solids
US3658015A (en) * 1970-04-15 1972-04-25 Dresser Ind Explosive-proof method and incinerator for burning drill cuttings
US3688781A (en) * 1970-07-15 1972-09-05 Mobil Oil Apparatus for treating drill cuttings at offshore locations
US3693951A (en) * 1970-12-30 1972-09-26 Nl Industries Inc Process and apparatus for the treatment of well cuttings
US3693733A (en) * 1971-03-08 1972-09-26 Texaco Inc Method and apparatus for avoiding water pollution at an offshore drilling site
US3716480A (en) * 1971-06-21 1973-02-13 Demco Inc Method and apparatus for cleaning solids coated with oil
US3860019A (en) * 1972-07-27 1975-01-14 Texaco Inc Apparatus for avoiding water pollution at an offshore drilling site
US4040866A (en) * 1973-10-05 1977-08-09 N L Industries, Inc. Laundering of oil base mud cuttings
US4139462A (en) * 1976-07-12 1979-02-13 Dresser Industries, Inc. Method for thermally treating oil well drill cuttings
US4175039A (en) * 1978-01-30 1979-11-20 Fisher Johnny D Washer/separator system for drilling cuttings in water environment oil wells
US4209381A (en) * 1978-02-02 1980-06-24 Mobil Oil Corporation Method and apparatus for treating drill cuttings at an onsite location
US4222988A (en) * 1978-05-05 1980-09-16 Oil Base Germany G.M.B.H. Apparatus for removing hydrocarbons from drill cuttings
US4406796A (en) * 1979-11-09 1983-09-27 Duval Leonard A Method and apparatus for cleaning fine waste material mixed with oil and water
US4304609A (en) * 1980-02-28 1981-12-08 Morris James B N Drill cuttings treatment apparatus and method
US4434061A (en) * 1980-09-10 1984-02-28 Cellu-Craft Inc. Solids-liquid separation
US4434028A (en) * 1981-04-17 1984-02-28 Critical Fluid Systems, Inc. Apparatus for removing organic contaminants from inorganic-rich mineral solids
US4411074A (en) * 1981-09-04 1983-10-25 Daly Charles L Process and apparatus for thermally drying oil well cuttings
US4395338A (en) * 1982-04-12 1983-07-26 Rowton Billy L Method and system for dewatering reserve pits
US4546783A (en) * 1983-05-02 1985-10-15 Flo Trend Shares, Inc. Apparatus for washing drill cuttings
US4595422A (en) * 1984-05-11 1986-06-17 Cds Development, Inc. Drill cutting disposal system
US4606774A (en) * 1984-07-30 1986-08-19 The Dow Chemical Company Process for removing contaminants from soils
US4645608A (en) * 1984-10-10 1987-02-24 Sun Drilling Products, Corp. Method of treating oil contaminated cuttings
US4662948A (en) * 1984-11-28 1987-05-05 Electric Power Research Institute On-site removal of PCB and dioxins from soils
US4726301A (en) * 1985-03-13 1988-02-23 Ormeaux Farrell P Des System for extracting contaminants and hydrocarbons from cuttings waste in oil well drilling
US4606283A (en) * 1985-03-13 1986-08-19 Desormeaux Farrell P System for extracting contaminants and hydrocarbons from cuttings waste in oil well drilling
US4683963A (en) * 1985-04-19 1987-08-04 Atlantic Richfield Company Drilling cuttings treatment
US4836302A (en) * 1986-12-03 1989-06-06 Heilhecker Joe K Apparatus and method for removing and recovering oil and/or other oil-based drilling mud additives from drill cuttings
US4812225A (en) * 1987-02-10 1989-03-14 Gulf Canada Resources Limited Method and apparatus for treatment of oil contaminated sludge
US4906388A (en) * 1988-11-09 1990-03-06 Bechtel Group, Inc. Sewage sludge dewatering process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368099A (fr) * 1963-09-09 1964-07-24 Metallgesellschaft Ag Procédé pour le traitement par extraction de matériaux pâteux, pulpeux ou finement pulvérisés
US4288329A (en) * 1979-11-09 1981-09-08 Duval Leonard A Method and apparatus for cleaning fine waste material mixed with oil and water
WO1982001737A1 (fr) * 1980-11-21 1982-05-27 Moir James A Procede de traitement de boues ou de debris de forage contamines par le petrole avant leur reutilisation ou elimination
DE3213268A1 (de) * 1982-04-08 1983-10-20 Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg Verfahren zum waschen groeberer partikel erbohrten gutes

Also Published As

Publication number Publication date
CN1057412A (zh) 1992-01-01
EP0517807A1 (fr) 1992-12-16
WO1991013232A2 (fr) 1991-09-05
CA2076636A1 (fr) 1991-08-29
US5080721A (en) 1992-01-14
AU7497491A (en) 1991-09-18

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