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WO1989003926A1 - Agglomerat de gravier pour puits de petrole ou d'eau - Google Patents

Agglomerat de gravier pour puits de petrole ou d'eau Download PDF

Info

Publication number
WO1989003926A1
WO1989003926A1 PCT/US1988/003825 US8803825W WO8903926A1 WO 1989003926 A1 WO1989003926 A1 WO 1989003926A1 US 8803825 W US8803825 W US 8803825W WO 8903926 A1 WO8903926 A1 WO 8903926A1
Authority
WO
WIPO (PCT)
Prior art keywords
gravel pack
gravel
binder
wee
pipe
Prior art date
Application number
PCT/US1988/003825
Other languages
English (en)
Inventor
Richard C. Jackson
Original Assignee
The Patent Company
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 The Patent Company filed Critical The Patent Company
Publication of WO1989003926A1 publication Critical patent/WO1989003926A1/fr

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
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/082—Screens comprising porous materials, e.g. prepacked screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2079—Other inorganic materials, e.g. ceramics the material being particulate or granular otherwise bonded, e.g. by resins
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of wells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2101/00—Types of filters having loose filtering material
    • B01D2101/005—Types of filters having loose filtering material with a binder between the individual particles or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration

Definitions

  • This invention relates to a prefabricated gravel pack for petroleum or water wells. More specifically, the subject matter of this invention is directed to both a method for the prefabrication of a structural, reinforced, cohesive gravel pack and to the use of such gravel pack in either a petroleum or a water well.
  • a flow control pipe which incorporates its own filter medium as an integral component of the suction control pipe (hereinafter “composite suction control pipes”).
  • the filter medium can be contained within two concentric pipes (U.S. Patent 4,014,387 to Fink), or simply bonded to the outer surface of a single slotted pipe (U.S. Patent 4,624,319 to Van der Borght). In either case, the integration of the filter medium on the slotted pipe results in the fabrication of a flow control pipe whose purpose is a reduction in the suction gradient over the length of the suction pipe.
  • suction control pipes prepared in the above fashion are typically used in existing weEs where the gravel pack has coEapsed or can be used in new weEs in combination with the traditional weE casing, weE screen and gravel pack.
  • the coEapse of the gravel pack greatly reduces the surface area of the filter bed surrounding the weE screen.
  • the composite suction flow control pipes described above, whrile effective in the filtration of particulate matter have, by design and of necessity, are much smaEer diameter than the gravel pack for which they are designed to supplement and/or replace. Accordingly, the efficiency of the weE is substantiaEy compromised where the gravel pack integrity is impaired. Since the gravel pack is dependant upon the stabiEty of the formation and the casing/weE screen for its physical integrity, impairment of either generaEy results in a partial coEapse of the pack.
  • the above and related objects are achieved by providing a method for the formation of a prefabricated, reinforced gravel pack.
  • the unique gravel pack of this invention can comprise a perforated pipe at its core and an adherent, cohesive aggregate layer having a reinforcing mesh integrated into the body of a porous, cohesive aggregate layer.
  • the gravel pack is formed on a mold core, which is subsequently removed, thereby leaving the self-supporting reinforced gravel pack which can be used with or without a liner.
  • the aggregate size is chosen to provide a prefabricated body having a f ter gradient of decreasing resistance from the top to the bottom of the weE. This variation in resistance is based upon proximity to the weE pump, with the greater resistance to flow being more closely associated with the segment of the gravel pack closest to the pump, and the least resistance being associated with the segment of the gravel pack most distant from the pump.
  • Fig. 1 is a typical weE in a sandy formation.
  • Fig. 2 is a typical weE in which the formation has eroded, thereby resulting in localized coEapse of the gravel pack.
  • Fig. 3 is a perspective view in partial section of the prefabricated, reinforced gravel pack of this invention.
  • weE as used herein is intended as descriptive of the combination of the gravel pack (if any), weE casing and weE screen.
  • dynamic water level as used herein is intended as descriptive of the level of water in the formation immediately sunounding the weE, foEowing the onset of water withdrawal from the weE.
  • flow control system as used herein is intended as inclusive of a suction control pipe, and the means associated with the pipe for withdrawal of fluid from the weE.
  • Fig. 1 is Elustrative of a typical weE configuration cunently in use throughout the world.
  • the fluid to be extracted from the sandy strata is water, and that the water is under Ettle, if any, pressure.
  • a bore hole (101) is driEed in the water bearing sandy strata (103), the diameter of the bore hole being somewhat larger than the diameter of a casing (105) and weE screen (107) which are to be inserted into the bore hole (101).
  • a casing (105) and weE screen (107) are concentricaEy positioned within the center of the bore hole (101) and the space (109) between the exterior waE of these tubular elements fiEed with gravel (111).
  • a pump (113) and suction pipe (115) are then lowered into the channel (117) defined by the casing and weE screen unt properly positioned relative to the static water level (119) in the weE.
  • the pump (113) is lowered to a sufficient depth to position the suction pipe (115) to accommodate a drop in fluid level (draw down) foEowing start up and initial operation of the pump.
  • the gravel pack (111) is effective to filter out sand as water is withdrawn from the sandy formation sunounding the weE.
  • the operation of the pump creates suction gradients along the length of the suction pipe, with the suction forces being significantly greater toward the end of the suction pipe closest to the pump.
  • fine sand is also withdrawn untE the formation is "developed".
  • the proper development of the formation sunounding the bore hole is, however, dependant upon certain assumptions; one of the more critical being that the rate of withdrawal of water is relatively uniform over the length of the suction pipe. Where a relative uniform distribution of suction forces is not achieved over the length of the suction pipe, the formation wiE not develop properly.
  • the suction pump is operated without regard to proper development of the formation, excessive amounts of sand can be withdrawn along with the water, thereby creating cavities in the formation.
  • Fig. 3 is an Elustration of the prefened configuration of the prefabricated gravel pack of this invention. It is understood that the prefabricated gravel pack illustrated in this figure would be similar in overaE length and diameter to the traditional gravel pack of the prior art. Under the appropriate circumstances, this prefabricated gravel pack could be used independent of the weE casing and/or weE screen.
  • the prefened embodiment of this gravel pack contemplates a slotted tubular member (350) serving as a support for the "green" molding formulation (slurry) of aggregate and. binder.
  • a reinforcing mesh (354) is placed around the tubular member.
  • the mesh is positioned above the surface of the tubular member, during the casting of the slurry. Sufficient slurry is used to completely cover the mesh.
  • the prefened configuration of gravel pack contemplates approximately the same amount of slurry above and below the level of the mesh.
  • the nature of the binder provided is selected for its exceEent adhesion to the aggregate and to the tubular member.
  • the gravel pack is ready for use.
  • the gravel pack is then ready for insertion with a bore hole in a sandy formation.
  • a pump and suction pipe can then be positioned within the channel defined by the gravel pack.
  • the pump is activated.
  • the pump is operated at a fraction of its desired capacity.
  • the initial start up, or operational capacity of the pump, wiE generaEy be in the range of 200 to 500 gaEons per minute (GPM) (depending upon the diameter and length of the suction control pipe).

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Filtration Of Liquid (AREA)

Abstract

On prépare des agglomérats de gravier préfabriqués pour puits de pétrole et d'eau, en combinant du gravier (dans les grosseurs ou mélanges granulométriques appropriés), ainsi qu'un liant dans une boue puis en coulant la boue dans une forme ou dans un moule cylindrique. Afin d'augmenter l'intégrité de la masse granulaire, on utilise une cage en fil métallique (354) comme renforcement pour le produit moulé. On place la cage en fil métallique autour du moule et de la coulée de boue (352) de manière à incorporer le renforcement dans le corps du produit traité ainsi obtenu. On peut ensuite retirer le moule, laissant un agglomérat de gravier préfabriqué se tenant librement. Dans un des modes préférés de réalisation de cette invention, on utilise un tube perforé ou à fentes (350) comme forme sur laquelle on coule la boue. On peut maintenir le tube perforé ou à fente dans le produit fini, et ainsi lui donner une intégrité physique supplémentaire. Le tube perforé offre également une surface relativement lisse au canal défini par l'agglomérat de gravier.
PCT/US1988/003825 1987-10-29 1988-10-27 Agglomerat de gravier pour puits de petrole ou d'eau WO1989003926A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11466587A 1987-10-29 1987-10-29
US114,665 1987-10-29

Publications (1)

Publication Number Publication Date
WO1989003926A1 true WO1989003926A1 (fr) 1989-05-05

Family

ID=22356674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/003825 WO1989003926A1 (fr) 1987-10-29 1988-10-27 Agglomerat de gravier pour puits de petrole ou d'eau

Country Status (3)

Country Link
EP (1) EP0348463A4 (fr)
AU (1) AU2719588A (fr)
WO (1) WO1989003926A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399889A1 (fr) * 1989-05-23 1990-11-28 Schlumberger Limited Procédé et dispositif avec filtre pour l'échantillonnage et l'essai d'une formation et procédé pour la fabrication d'un tel filtre
EP0468608A1 (fr) * 1990-07-24 1992-01-29 Lausitzer Braunkohle Ag Elément de drainage pour le soutènement de puits et son procédé de fabrication
WO1996018022A1 (fr) * 1994-12-07 1996-06-13 Pall Corporation Filtre pour puits souterrains
GB2429725A (en) * 2005-09-01 2007-03-07 Schlumberger Holdings Gravel pack with swellable elastomeric particles to inhibit water inflow

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921337A (en) * 1908-09-24 1909-05-11 William Alexander Archer Well-screen.
US1992718A (en) * 1934-12-31 1935-02-26 Chester E Records Well screen
US2217370A (en) * 1939-08-08 1940-10-08 Socony Vacuum Oil Co Inc Screen wrapped perforated liner pipe
US2877852A (en) * 1954-09-20 1959-03-17 Frank J Bashara Well filters
US3729337A (en) * 1966-08-10 1973-04-24 Amoco Prod Co Production of petroleum from unconsolidated formations
US4014387A (en) * 1974-01-11 1977-03-29 Thyssen Plastik Anger Kg Apparatus and process for drawing water from a water-bearing strata
US4074760A (en) * 1976-11-01 1978-02-21 The Dow Chemical Company Method for forming a consolidated gravel pack
US4624319A (en) * 1984-12-18 1986-11-25 Jacques A. Van Der Borght Method and apparatus to improve well water quality

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392263A (en) * 1942-07-08 1946-01-01 Chester E Records Method of constructing well screens
AT273171B (de) * 1967-10-17 1969-08-11 Wilhelm Dipl Ing Degen Filterstrang für Rohrbrunnen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921337A (en) * 1908-09-24 1909-05-11 William Alexander Archer Well-screen.
US1992718A (en) * 1934-12-31 1935-02-26 Chester E Records Well screen
US2217370A (en) * 1939-08-08 1940-10-08 Socony Vacuum Oil Co Inc Screen wrapped perforated liner pipe
US2877852A (en) * 1954-09-20 1959-03-17 Frank J Bashara Well filters
US3729337A (en) * 1966-08-10 1973-04-24 Amoco Prod Co Production of petroleum from unconsolidated formations
US4014387A (en) * 1974-01-11 1977-03-29 Thyssen Plastik Anger Kg Apparatus and process for drawing water from a water-bearing strata
US4074760A (en) * 1976-11-01 1978-02-21 The Dow Chemical Company Method for forming a consolidated gravel pack
US4624319A (en) * 1984-12-18 1986-11-25 Jacques A. Van Der Borght Method and apparatus to improve well water quality

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0348463A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399889A1 (fr) * 1989-05-23 1990-11-28 Schlumberger Limited Procédé et dispositif avec filtre pour l'échantillonnage et l'essai d'une formation et procédé pour la fabrication d'un tel filtre
EP0468608A1 (fr) * 1990-07-24 1992-01-29 Lausitzer Braunkohle Ag Elément de drainage pour le soutènement de puits et son procédé de fabrication
WO1996018022A1 (fr) * 1994-12-07 1996-06-13 Pall Corporation Filtre pour puits souterrains
GB2429725A (en) * 2005-09-01 2007-03-07 Schlumberger Holdings Gravel pack with swellable elastomeric particles to inhibit water inflow
GB2429725B (en) * 2005-09-01 2008-03-19 Schlumberger Holdings System and method for controlling undesirable fluid incursion during hydrocarbon production
US7543640B2 (en) 2005-09-01 2009-06-09 Schlumberger Technology Corporation System and method for controlling undesirable fluid incursion during hydrocarbon production

Also Published As

Publication number Publication date
AU2719588A (en) 1989-05-23
EP0348463A4 (fr) 1990-03-08
EP0348463A1 (fr) 1990-01-03

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