US20040084186A1 - Well treatment apparatus and method - Google Patents

Well treatment apparatus and method Download PDF

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Publication number
US20040084186A1
US20040084186A1 US10/285,859 US28585902A US2004084186A1 US 20040084186 A1 US20040084186 A1 US 20040084186A1 US 28585902 A US28585902 A US 28585902A US 2004084186 A1 US2004084186 A1 US 2004084186A1
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United States
Prior art keywords
well treatment
treatment device
activation
pipe string
well
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
Application number
US10/285,859
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English (en)
Inventor
David Allison
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.)
Halliburton Energy Services Inc
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Halliburton Energy Services 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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Priority to US10/285,859 priority Critical patent/US20040084186A1/en
Assigned to HALLIBURTON ENERGY SERVICES, INC. reassignment HALLIBURTON ENERGY SERVICES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLISON, DAVID B.
Priority to AU2003243987A priority patent/AU2003243987A1/en
Priority to ARP030103459A priority patent/AR041361A1/es
Priority to BR0304253-7A priority patent/BR0304253A/pt
Priority to NO20034335A priority patent/NO20034335L/no
Priority to EP20030256142 priority patent/EP1416118A1/fr
Priority to CA002444549A priority patent/CA2444549A1/fr
Priority to MXPA03009865A priority patent/MXPA03009865A/es
Publication of US20040084186A1 publication Critical patent/US20040084186A1/en
Abandoned legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B27/00Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
    • E21B27/02Dump bailers, i.e. containers for depositing substances, e.g. cement or acids
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00Methods or apparatus for cleaning boreholes or wells
    • E21B37/06Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/02Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells

Definitions

  • Hydrocarbon production from a well is a complex and costly operation.
  • modem production processes use a variety of well treatment chemicals to treat common problems encountered during hydrocarbon production. Commonly encountered problems include the production of scale producing compounds, wax buildup and corrosion.
  • a non-inclusive classification of well treatment chemicals includes: scale inhibitors, biocides, corrosion inhibitors, hydrogen sulfide scavengers, well tracing materials and de-waxing agents.
  • a scale inhibiting treatment requires the cessation of production and injection of a scale inhibitor.
  • Treatment processes such as pumping, also known as the squeeze process, dump bailing or other means of well intervention requires additional personnel and use of specialized equipment not normally maintained at the wellhead.
  • the squeeze process injects scale inhibitor, under pressure, into a producing formation.
  • Subsequent oil production carries the scale inhibitor out of the formation with the produced fluid.
  • the scale inhibitor alters the chemistry of the produced fluid precluding precipitation of scale on the interior of the pipe string.
  • the current invention provides a method for delivering well treatment chemicals to a downhole region of a wellbore.
  • the method of the current invention places at least one well treatment chemical in at least one well treatment device.
  • the well treatment device is incorporated into a pipe string.
  • the interior of the well treatment device is in fluid communication with the interior of the pipe string.
  • the pipe string is positioned within a wellbore, which penetrates at least one subterranean formation. Following positioning of the pipe string, the well treatment chemicals are released.
  • the current invention also provides a method for controlling the delivery of well treatment chemicals to a downhole region of a wellbore.
  • the method places at least one well treatment chemical in at least one well treatment device.
  • the well treatment device is incorporated into a pipe string.
  • the pipe string is positioned within a wellbore penetrating at least one subterranean formation.
  • the well treatment device has at least one valve selectively movable between an open position and a closed position. When in the open position, the valve permits fluid communication between the interior of the well treatment device and the interior of the pipe string.
  • the interior of the pipe string is also in fluid communication with the wellbore.
  • the well operator controls the release of the well treatment chemical by selectively opening and closing the valve on the well treatment device.
  • the current invention also provides a downhole well treatment system.
  • the well treatment system comprises a pipe string or other similar structure.
  • the pipe string includes at least one well treatment device having at least one reservoir. Stored within the reservoir is at least one chemical suitable for treating a downhole condition or the wellbore.
  • the downhole well treatment system may further comprise a selectively activated downhole well treatment system.
  • the well treatment device has at least one valve selectively movable between a closed position and an open position. Placing the valve in the open position provides fluid communication between the reservoir located within the treatment device and the interior of the pipe string. The interior of the pipe string is also in fluid communication with the wellbore.
  • the present invention provides a method for inhibiting the formation of scale on a pipe string or other downhole metallic components.
  • the method comprises placing at least one scale inhibiting chemical within at least one well treatment device.
  • the well treatment device is attached to a pipe string.
  • the pipe string is positioned in a wellbore.
  • the scale inhibiting chemical is released at a downhole region of the wellbore.
  • the scale inhibiting chemical is released during production of fluids from a subterranean formation penetrated by the wellbore.
  • the current invention provides a passive downhole well treatment system utilizing existing downhole devices.
  • downhole devices useful in the current invention may include: side pocket mandrels, sand control screen devices, steel tubing, velocity tubing strings, siphon tubing strings, fiberglass tubing, tubings made of composite materials, dump bailing devices, plastic tubing or similar devices.
  • the listed devices contain void spaces or a reservoir or the equivalent thereof suitable for holding the desired materials. Additionally, these devices easily enable placement of the desired material in the fluid flow stream. Thus, the devices allow for the slow evolution of the desired materials into the produced fluids or gases.
  • FIG. 1 is a side cross-sectional view of one embodiment of the well treatment device of the current invention.
  • FIG. 2 is a side cross-sectional view of another embodiment of the well treatment device of the current invention.
  • FIG. 3 is a side cross-sectional view of a well treatment device of the current invention fitted with a valve on one end and a cap on the opposite end.
  • FIG. 4 is a side cross-sectional view of one embodiment of the current invention where the well treatment device is located within a side pocket mandrel.
  • FIG. 5 is a bottom view of an embodiment of the current invention.
  • the present invention provides a well treatment system 115 for delivering well treatment chemicals 120 to a downhole region.
  • Well treatment system 115 improves wellhead economics by delivering necessary well treatment chemicals 120 without interrupting production operations.
  • Well treatment system 115 includes a well treatment device 110 suitable for incorporation into a conventional pipe string 118 .
  • the current invention is useful in all types of wells including but not limited to cased and uncased wells as well as vertical and directionally drilled wells.
  • the term “downhole region” includes the subsurface portion of a wellbore 122 , any subsurface production zones and the hardware associated with operating the well.
  • FIG. 1 depicts wellbore 122 penetrating at least one subterranean formation 150 .
  • a casing 123 is cemented in wellbore 122 .
  • pipe string 118 Positioned within wellbore 122 is pipe string 118 .
  • well treatment system 115 Incorporated into pipe string 118 is well treatment system 115 .
  • the method of incorporating and positioning well treatment system 115 on or in pipe string 118 will be determined from well to well based on the intended use of well treatment system 115 .
  • well treatment system 115 may be attached to the interior or exterior of pipe string 118 or may actually form part of pipe string 118 as described below with reference to FIG. 4. The method of attachment or incorporation is not critical to the current invention.
  • a rod, pipe, tube or other similar structure having a passageway 112 extending from a first open end 114 to a second open end 116 provides the structure of well treatment device 110 .
  • the configuration shown in FIG. 1 has the advantage of simplicity and availability. Further, those skilled in the art of oil production can easily attach well treatment devices 110 to pipe string 118 .
  • FIG. 1 depicts a cylindrical member, such as a pipe, tube or conduit, the physical configuration of well treatment device 110 is not critical to the current invention.
  • well treatment device 110 When incorporated into pipe string 118 , well treatment device 110 provides a means for delivering well treatment chemicals 120 to a downhole region of wellbore 122 . As shown in FIG. 1, passageway 112 provides a storage area for well treatment chemicals 120 . Further, open ends 114 and 116 of passageway 112 provide fluid communication between the interior passageway 112 of well treatment device 110 and wellbore 122 . In this manner passageway 112 provides a reservoir 112 for storage of well treatment chemicals 120 . Optionally, well treatment device 110 may be permanently sealed at either end 114 or 116 .
  • FIG. 1 depicts one preferred configuration of well treatment system 115 with well treatment device 110 located on the interior of pipe string 118 .
  • This configuration shields well treatment device 110 from casing joints (not shown) and other downhole hazards that may damage well treatment device 110 during positioning downhole.
  • the functionality of well treatment device 110 does not depend upon the location and method of incorporating well treatment device 110 into pipe string 118 . Rather, the current invention provides the well operator with the flexibility to incorporate well treatment device 110 as part of pipe string 118 in any manner that provides fluid communication between reservoir 112 , the interior of pipe string 118 and/or wellbore 122 .
  • FIG. 1 depicts well treatment device 110 attached to the inner wall of a tubular device 108 , which is connected to pipe string 118 .
  • Tubular device 108 may be any downhole apparatus including but not limited to a filter, a perforated pipe or a liner.
  • well treatment system 115 may utilize any component incorporated into pipe string 118 having sufficient space to accommodate well treatment device 110 .
  • U.S. Pat. No. 5,934,376, incorporated herein by reference provides an improved well completion apparatus in the form of a slotted liner having an internal sand screen.
  • the apparatus described by the '376 patent has sufficient void space to accommodate well treatment device 110 . Therefore, well treatment 115 system of the type described herein can be prepared by incorporating well treatment device 110 into the well completion device of the '376 disclosure.
  • a non-exclusive list of pipe string 118 components suitable for forming well treatment system 115 would include: sand control screen devices, prepacked well filters, steel tubing, velocity tubing strings, coiled tubing, siphon tubing strings, fiberglass tubing, tubings made of composite materials, dump bailing devices, sand control screens, plastic tubing or similar devices.
  • the component of pipe string 118 must provide a reservoir 112 for containing the desired well treatment chemicals 120 .
  • the well treatment device 110 must be suitable for placement in the flow stream thereby permitting fluid contact with well treatment chemicals 120 and the evolution of desired well treatment chemicals 120 into the produced fluids or gases.
  • well treatment device 110 may vary depending on the application and manner of incorporation within the pipe string 118 .
  • an alternate embodiment of the well treatment device 110 of the current invention is identified in FIG. 2 as 210 , in connection with a well treatment system 215 .
  • Well treatment device 210 comprises a channel attached to the exterior of pipe string 218 ; yet, well treatment device 210 provides the same function as well treatment device 110 .
  • Well treatment device 210 provides a reservoir 212 for well treatment chemicals 220 .
  • open ends 214 and 216 of well treatment device 210 permit fluid communication between the reservoir 212 and wellbore 222 .
  • perforations may be cut in either well treatment device 110 or 210 .
  • the present invention provides well treatment systems 315 capable of regulating the release of well treatment chemicals 320 .
  • well treatment system 315 includes the use of a well treatment device 310 .
  • Well treatment device 310 comprises a passageway 312 between ends 314 and 316 and a valve 324 at end 314 and a sealing means such as a cap 326 or other suitable sealing mechanism at the opposing end 316 .
  • Valve 324 is movable between a closed position and an open position. When in the open position, valve 324 provides fluid communication between passageway 312 and the wellbore (not shown in FIG. 3). Thus, valve 324 provides the ability to regulate the release of well treatment chemicals 320 from passageway 312 .
  • valve suitable for use downhole will perform satisfactorily in the current invention.
  • a non-exclusive list of suitable valves would include: dynamic pressure variance activation, passive pressure activation, temperature activated, electronically activated, seismically activated, flow constituent activated, pH activated, sonically activated, acoustically activated, and mechanically activated.
  • One skilled in the art will be able to use valves of this nature and other similar valves in the practice of the current invention.
  • valve 324 by means of a non-intervention mechanism such as pressure pulses, seismic signal or other similar signal.
  • operational control of valve 324 may also be provided by any one of the following or similar type devices: mechanical activation device attached to slick line, electric wireline, coil tubing or other means to physically manipulate valve 324 to the desired position.
  • valve 324 opens thereby permitting passing fluid to contact well treatment chemicals 320 .
  • a second valve 324 can be substituted for cap 326 .
  • FIG. 4 depicts yet another embodiment of well treatment system 415 .
  • the system of FIG. 4 permits quick and easy replacement of spent well treatment devices 410 .
  • the well treatment system 415 disclosed in FIG. 4 comprises a well treatment device 410 and a side pocket mandrel 430 incorporated into a pipe string 418 .
  • well treatment system 415 permits retrieval and replacement of well treatment devices 410 using currently available technology.
  • U.S. Pat. No. 5,797,453 (the '453 patent), incorporated herein by reference, demonstrates the retrieval of a gas lift valve from a side pocket mandrel.
  • a latch carried by the upper end of the gas lift valve enables retrieval of the gas lift valve by a downhole tool.
  • the technique taught by U.S. Pat. No. 5,797,453 applies equally well to the retrieval of well treatment device 410 fitted with a latch 432 .
  • the current invention when configured as depicted in FIG. 4, provides an extremely flexible well treatment system 415 .
  • the system shown in FIG. 4 uses a modified gas lift valve as well treatment device 410 .
  • This embodiment of the current invention enables the well operator to quickly substitute well treatment chemicals 420 in response to a change in downhole conditions. Retrieval and replacement of well treatment device 410 can be carried out by one skilled in the art using common downhole tools as described in the '453 patent.
  • well treatment system 415 includes a well treatment device 410 having a passageway 412 or reservoir 412 .
  • latch 432 and optionally located at the opposing end 414 is a valve 424
  • FIG. 5 depicts a bottom view of another embodiment of the current invention.
  • several well treatment devices 110 may be positioned within pipe string 118 .
  • well treatment devices 110 are located between a shroud 124 and wire wrap 126 .
  • well treatment devices 110 are spaced at regular intervals within pipe string 118 ; however, the current invention is not limited to a particular spacing.
  • FIG. 5 demonstrates the use of conventional pipe string 118 components to form well treatment device 110 .
  • the structural elements 128 normally used to position wire wrap 126 away from a perforated base pipe 130 may be hollow tubes.
  • Perforated base pipe 130 includes perforations 132 . These hollow areas allow structural elements 128 to also operate as well treatment devices 110 .
  • the current invention contemplates combining wire wrap 126 and perforated base pipe 130 to form the components of well treatment device 110 .
  • well treatment chemicals 120 are placed between wire wrap 126 and perforated base pipe 130 during pipe string 118 assembly.
  • wire wrap 126 provides fluid communication between wellbore 122 and well treatment chemicals 120 .
  • perforated base pipe 130 having perforations 132 provides fluid communication between the interior of pipe string 118 and well treatment chemicals 120 .
  • well treatment devices 110 may be positioned between shroud 124 and wire wrap 126 .
  • Well treatment chemicals 120 suitable for use in the current invention include any compound or group of compounds necessary to solve or prevent a downhole problem or a problem in a pipe string 118 or for any other desired purpose.
  • the following classes of chemicals are commonly used in the downhole environment: scale inhibitors, paraffin deposition inhibitors, viscosity breakers, gas hydrate suppressors, emulsion breakers, oxygen scavengers, oxidizers, esters, corrosion inhibitors, hydrogen sulfide scavengers, biocides and ashless dispersants.
  • scale inhibitors paraffin deposition inhibitors
  • viscosity breakers gas hydrate suppressors
  • emulsion breakers oxygen scavengers
  • oxygen scavengers oxygen scavengers
  • oxidizers oxidizers
  • esters corrosion inhibitors
  • hydrogen sulfide scavengers biocides and ashless dispersants.
  • the inventors anticipate the continued development of additional chemicals to address downhole problems.
  • the current inventive method utilizes the well treatment systems described above.
  • the actual configuration of the well treatment system 115 is not critical to the current invention. Rather, the current invention merely requires that well treatment system 115 provide fluid communication between the reservoir 112 of the well treatment device 110 , the interior of the pipe string 118 and/or wellbore 122 .
  • the remainder of this discussion will focus primarily on well treatment system 115 incorporating well treatment device 110 ; however, the processes described herein apply equally well to the configurations depicted in FIGS. 2 - 5 and other embodiments of the current invention.
  • the well treatment device 110 is loaded with the desired well treatment chemicals 120 .
  • the methods of this invention are not limited to the use of a single class of chemicals. Provided the chemicals are compatible, multiple classes of chemicals may be loaded simultaneously within reservoir 112 . Alternatively, when well treatment system 115 is configured as shown in FIG. 5, different well treatment chemicals 120 may be spaced around pipe string 118 in separate well treatment devices 110 .
  • a non-limiting list of chemical classes suitable for use in the current invention would include: scale inhibitors, paraffin deposition inhibitors, viscosity breakers, gas hydrate suppressors, emulsion breakers, oxygen scavengers, oxidizers, esters, corrosion inhibitors, hydrogen sulfide scavengers, biocides, well tracers and ashless dispersants. Additionally, the processes of the current invention should also be suitable for downhole delivery of well treatment chemicals 120 developed in the future.
  • well treatment device 110 on pipe string 118 normally follows the loading of the desired class of well treatment chemicals 120 in well treatment device 110 .
  • the particular method for incorporating well treatment device 110 into pipe string 118 is not critical to the current invention.
  • well treatment device 110 can form part of pipe string 118 or other device located downhole.
  • well treatment device 110 may be attached to a component forming a part of pipe string 118 or other device located downhole.
  • existing components of pipe string 118 may be adapted to function as well treatment device 110 .
  • FIG. 1 depicts well treatment device 110 attached to the inner wall of tubular device 108 .
  • Tubular device 108 may be any downhole apparatus including but not limited to a filter, a perforated pipe or a liner.
  • FIG. 2 depicts well treatment device 110 as being attached to the external portion of pipe spring 218 .
  • FIG. 4 shows another embodiment of the current invention wherein well treatment device 410 is incorporated into side pocket mandrel 430 .
  • reservoir 112 or its equivalent is in fluid communication with wellbore 122 or is provided with the means, e.g. valve 424 , to permit such fluid communication.
  • the means of attachment to pipe string 118 may be any procedure or configuration commonly used in construction of pipe string 118 including but not limited to welding, threaded connections, “clamped on,” “locking ring,” friction grip, or a custom mating means.
  • the process has been described with the step of filling reservoir 112 prior to placement of well treatment device 110 on the pipe string 118 . However, circumstances may dictate loading reservoir 112 after incorporation of well treatment device 110 into pipe string 118 .
  • pipe string 118 is positioned within wellbore 122 according to techniques well known to those skilled in the art.
  • the type of wellbore 122 is not critical to the current invention.
  • Wellbore 122 may be cased or uncased. Additionally, the processes of the current invention will find equal application in both vertical and directionally drilled wells. Further, the wells may be used for producing hydrocarbons or for subterranean injection of fluids, solids or gases.
  • well treatment device 110 When used in a production well, well treatment device 110 releases well treatment chemicals 120 into the produced fluids. Once in the produced fluid stream, well treatment chemicals 120 may either react with the produced fluid or may treat the surfaces of pipe string 118 .
  • well treatment device 110 releases the scale inhibitor from reservoir 112 .
  • the scale inhibitor blends into the produced fluids, it reacts with the scale generating compounds or treats pipe string 118 precluding the formation of scale on pipe string 118 and other metal components located in the downhole region.
  • the current invention provides a process for simultaneously inhibiting the formation of scale and producing fluid from subterranean formation 150 .
  • the process of delivering well treatment chemicals 320 to a downhole region includes the additional step of selectively releasing well treatment chemicals 320 into the passing fluid stream.
  • well treatment system 315 is prepared and installed as described above. However, as shown in FIG. 3, well treatment system 315 has been modified by the addition of at least one valve 324 to well treatment device 310 . When only one valve 324 is used, then the opposite end 316 of well treatment device 310 is preferably sealed or capped. Valve 324 provides the means for regulating fluid communication between reservoir 312 , the wellbore (not shown in FIG. 3) and/or the interior of pipe string 318 .
  • valve 324 is remotely activated from the surface by means well known in the art.
  • valve 324 may be controlled or activated by dynamic pressure variance activation, passive pressure activation, temperature activated, electronically activated, seismically activated or flow constituent activated. Activation of valve 324 between the closed and open positions permits the controlled release of well treatment chemicals 320 into either the subterranean formation, not shown, or the produced fluids.
  • the process of the current invention includes the step of retrieving and replacing well treatment device 410 .
  • well treatment system 415 has been modified by the addition of a means to permit subsequent retrieval and replacement of well treatment device 410 .
  • well treatment device 410 is fitted with a latch 432 similar or identical to that commonly used on gas lift valves 424 located within standard side pocket mandrels 430 .
  • any other mechanism suitable for engagement by tools used to retrieve other downhole devices should work equally well in the process of the current invention.
  • the ability to retrieve and replace well treatment device 410 provides the well operator with increased flexibility.
  • well treatment device 410 In the event of a change in downhole conditions or the chemistry of the produced fluids, the operator can replace well treatment device 410 by use of standard tool retrieval techniques. Following retrieval, well treatment device 410 , now loaded with the appropriate well treatment chemicals 420 , can be placed downhole. This process also enables the replacement of spent well treatment devices 410 .
  • the methods of the current invention provide several advantages over prior art methods.
  • the current invention enables the production of fluid during the well treatment process.
  • the current invention may extend the treatment time by choosing well treatment chemicals 420 for their ability to react with compounds produced from subterranean formation, not shown, to subsequently yield a desired well treatment compound.
  • the well treatment compounds can be formulated to release only at a predetermined downhole temperature, pressure or pH.
  • well treatment chemicals 120 remain in reservoir 112 or equivalent until the specific change in downhole conditions takes place. Occurrence of the specified change in downhole conditions triggers the release of the well treatment chemicals 120 to counteract the undesired condition.

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  • 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)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Water Treatment By Electricity Or Magnetism (AREA)
US10/285,859 2002-10-31 2002-10-31 Well treatment apparatus and method Abandoned US20040084186A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US10/285,859 US20040084186A1 (en) 2002-10-31 2002-10-31 Well treatment apparatus and method
AU2003243987A AU2003243987A1 (en) 2002-10-31 2003-08-29 Well treatment apparatus and method
ARP030103459A AR041361A1 (es) 2002-10-31 2003-09-23 Aparato y metodo para tratamiento de pozo
BR0304253-7A BR0304253A (pt) 2002-10-31 2003-09-25 Métodos para despachar produtos quìmicos de tratamento de poço e para o despacho controlado de pelo menos um produto quìmico de tratamento de poço, para uma região do furo descendente de um furo do poço, sistema de tratamento de poço no furo descendente, e, método para inibir a formação de crosta sobre componentes metálicos no furo descendente
NO20034335A NO20034335L (no) 2002-10-31 2003-09-29 Fremgangsmate for a plassere kjemikalier nede i en borebronn og anordning for utforelse av fremgangsmaten
EP20030256142 EP1416118A1 (fr) 2002-10-31 2003-09-29 Appareil et procédé de traitement de puits de pétrole
CA002444549A CA2444549A1 (fr) 2002-10-31 2003-10-10 Dispositif et methode de traitement de puits
MXPA03009865A MXPA03009865A (es) 2002-10-31 2003-10-27 Aparato y metodo para tratamiento de pozos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/285,859 US20040084186A1 (en) 2002-10-31 2002-10-31 Well treatment apparatus and method

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US20040084186A1 true US20040084186A1 (en) 2004-05-06

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US10/285,859 Abandoned US20040084186A1 (en) 2002-10-31 2002-10-31 Well treatment apparatus and method

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US (1) US20040084186A1 (fr)
EP (1) EP1416118A1 (fr)
AR (1) AR041361A1 (fr)
AU (1) AU2003243987A1 (fr)
BR (1) BR0304253A (fr)
CA (1) CA2444549A1 (fr)
MX (1) MXPA03009865A (fr)
NO (1) NO20034335L (fr)

Cited By (37)

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US20060011345A1 (en) * 2004-07-15 2006-01-19 Delaloye Richard J Method and apparatus for downhole artificial lift system protection
US20090065206A1 (en) * 2007-09-06 2009-03-12 Thane Geoffrey Russell Wellbore fluid treatment tubular and method
US20090266546A1 (en) * 2008-04-24 2009-10-29 Baker Hughes Incorporated Apparatus and Method For Discharging Multiple Fluids Downhole
WO2011005988A1 (fr) * 2009-07-10 2011-01-13 Schlumberger Canada Limited Appareil et procédés d’insertion et de retrait de matériaux traceurs dans des crépines de fond
US20110042081A1 (en) * 2009-08-24 2011-02-24 Halliburton Energy Services, Inc. Methods and Apparatuses for Releasing a Chemical into a Well Bore Upon Command
US20110042082A1 (en) * 2009-08-24 2011-02-24 Hailliburton Energy Services, Inc. Methods and Apparatuses for Releasing a Chemical into a Well Bore Upon Command
WO2011023943A3 (fr) * 2009-08-24 2011-06-16 Halliburton Energy Services, Inc. Procédés et appareil pour la libération d'un produit chimique dans un puits de forage sur commande
US20110162841A1 (en) * 2009-12-11 2011-07-07 Conocophillips Company Continuous Slow Dissolving Chemical Treatment for Oil and Gas Wells
WO2011153635A1 (fr) * 2010-06-11 2011-12-15 Absolute Completion Techonologies Ltd. Dispositif tubulaire et procédé de traitement de fluide de forage
US20140057817A1 (en) * 2012-08-21 2014-02-27 Lonza, Inc. Method of scavenging hydrogen sulfide and/or sulfhydryl compounds
US8950491B2 (en) 2012-01-06 2015-02-10 Odessa Separator, Inc. Downhole assembly for treating wellbore components, and method for treating a wellbore
WO2015065403A1 (fr) * 2013-10-31 2015-05-07 Halliburton Energy Services, Inc. Rétention de traceur par des tamis en fond de trou
US9097093B1 (en) 2012-01-06 2015-08-04 Cavin B. Frost Downhole chemical treatment assembly for use in a downhole wellbore
US9097094B1 (en) 2012-01-06 2015-08-04 Cavin B. Frost Method for chemically treating hydrocarbon fluid in a downhole wellbore
US9102018B2 (en) 2010-06-11 2015-08-11 Absolute Completion Technologies Ltd. Wellbore fluid treatment and method
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EP4025769A4 (fr) * 2019-09-05 2023-08-23 Khalifa University of Science and Technology Appareils de bouchon de carotte de fond de trou et procédés associés
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NO20034335D0 (no) 2003-09-29
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AR041361A1 (es) 2005-05-11

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