WO2018118921A1 - Garniture d'étanchéité à gonflement à deux trous - Google Patents

Garniture d'étanchéité à gonflement à deux trous Download PDF

Info

Publication number
WO2018118921A1
WO2018118921A1 PCT/US2017/067319 US2017067319W WO2018118921A1 WO 2018118921 A1 WO2018118921 A1 WO 2018118921A1 US 2017067319 W US2017067319 W US 2017067319W WO 2018118921 A1 WO2018118921 A1 WO 2018118921A1
Authority
WO
WIPO (PCT)
Prior art keywords
mandrel
bores
bore
borehole
sealing element
Prior art date
Application number
PCT/US2017/067319
Other languages
English (en)
Inventor
Gabriel F. Casanova
Original Assignee
Baker Hughes, A Ge Company, Llc
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 Baker Hughes, A Ge Company, Llc filed Critical Baker Hughes, A Ge Company, Llc
Publication of WO2018118921A1 publication Critical patent/WO2018118921A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/122—Multiple string packers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages

Definitions

  • the field of the invention is borehole isolation devices and more particularly plugs or packers that have a dual bore and a reactive sealing element triggered by fluid.
  • Dual bore packers or tools are illustrated in US 7565931 ; 4749036 and 5685370.
  • the sealing element system for dual bore packers has involved an actuation system that is mechanically or hydraulically set.
  • the mechanical force or hydraulic pressure axially compress a sealing element to get the element to seal and in some designs the same movement also extends an anchoring feature that rides out radially on one or more tapered sleeves or cones to engage the surrounding tubular.
  • dual bore has been used in contexts where there is but a single flow bore and an auxiliary conduit for hydraulic signal line or other pass through signal or power lines or cables that need to pass through the packer mandrel.
  • dual bore is a reference to two flowing streams from different locations that pass through the mandrel whether the service is in treatment, injection or production.
  • FIGS. 7 and 8 of US 2015/0354315 One example of a packer with a reactive sealing element is seen in FIGS. 7 and 8 of US 2015/0354315.
  • the section view of FIG. 8 shows a single flow bore 36 and an auxiliary conduit or tube 38, 54 for control lines passing a liquid or gas to other tools.
  • the mandrel with the bypass passage for control lines is described in paragraphs 30 and 31 as being formed of a steel bar.
  • the present invention is configured to have side by side flow passages for dual flow duty in a production, injection or treatment application.
  • the swelling sealing element covers the mandrel and has gauge rings at opposed element ends to contain the swelling element. Threads are provided at opposed ends of the multiple bores for connection of discrete strings that lead to different locations in the borehole.
  • the bores are the same size or one bore may be within 20% of the diameter of the adjacent bore if the bore dimensions are different.
  • the packer can be supported off a production packer that has an anchoring feature to compensate for the limited ability for a swelling packer without an anchoring feature to resist directional net forces.
  • Two or more bores are machined from a block of material with opposing end connections.
  • the outer surface is rounded and a reactive element is mounted to the mandrel exterior with gauge rings at opposed ends to contain the element when it moves to the set position.
  • Well fluids present or added to the well will trigger the swelling material to extend radially to contact a surrounding tubular for a seal.
  • the small profile of this dual bore barrier allows insertion into smaller casing sizes while maximizing the bore dimension for a reduction in flow resistance.
  • the bores can be evenly spaced about a central axis and can be the same size or different sizes within a range of 20 %.
  • the bores can be eccentric to a center axis while being at the same or different radial dimensions from a central axis.
  • Figure 1 shows an elevation view of a dual bore packer with threaded end connections.
  • the packer P has dual bores 10 and 12 that are part of a cylindrically shaped mandrel 16. Bores 10 and/or 12 can be polished to accept a seal assembly that can serve as a closure if needed.
  • An annularly shaped reactive sealing element 18 is flanged by opposed gauge rings 20 and 22 to contain the sealing element 18 in the axial direction as its outer diameter increases from exposure to well fluids or fluids added to the wellbore.
  • the element 18 can be reactive with hydrocarbons or water or other fluids.
  • the element 18 can be triggered to set from merely being run in with a time exposure to well fluid or the triggering fluid could be selectively released from within the element 18.
  • the element 18 can be a single section or multiple abutting annular segments between rings 20 and 22.
  • the element 18 can be resilient rubber, a shape memory foam that responds to thermal inputs to change shape or other reactive materials that will make a seal over time.
  • Bore 10 can have opposed end connections 24 and 26 and bore 12 can have end connections 28 and 30. These can be threaded or other type of connections to attach tubular strings or tools that are not shown.
  • the bores 10 and 12 are shown as symmetrical about a central axis 32 and having their centers in the same plane as axis 32. The bores are shown to be the same size but their size and placement with respect to axis 32 can vary. The bore diameter difference can be as much as 20%.
  • the center of the bores can be misaligned with the central axis 32 or aligned.
  • the number of bores can be two or more with male or female threaded end connections or other types of connections to discrete tubular strings.
  • the service for each bore at a given time can be identical or discrete. Treatment can be going on through one bore while another bore connected to a different zone can be in production.
  • the mandrel length can be varied to allow a longer element 18 to be used depending on the application.
  • the packer can be retrieved with the strings connected to it when there is another releasable packer used for support. In the case where the other supporting packer or anchor is not releasable the string or strings in between the two barriers can be cut to release the reactive element packer.
  • the reactive element packer could be used without an external support such as a production packer.
  • the element 18 can be a seamless annular shape built on the mandrel 34 or slipped over and adhered to the mandrel 34.
  • the element 18 can have a longitudinal or spiral seam that is sealed closed with adhesive or fasteners.
  • Each bore can also have a sliding sleeve schematically illustrated as 36 to allow the strings connected to bores 10 and 12 to drain when removing the packer to prevent pulling wet strings or swabbing the borehole. Dual bore completions an also occur in casing as small as 7 inches.
  • the element 18 can be replaced after use to allow reuse of mandrel 34.
  • the packer has no leak paths or o-rings and is very economical to manufacture. [0009]
  • the teachings of the present disclosure may be used in a variety of well operations.
  • These operations may involve using one or more treatment agents to treat a formation, the fluids resident in a formation, a wellbore, and / or equipment in the wellbore, such as production tubing.
  • the treatment agents may be in the form of liquids, gases, solids, semi-solids, and mixtures thereof.
  • Illustrative treatment agents include, but are not limited to, fracturing fluids, acids, steam, water, brine, anti-corrosion agents, cement, permeability modifiers, drilling muds, emulsifiers, demulsifiers, tracers, flow improvers etc.
  • Illustrative well operations include, but are not limited to, hydraulic fracturing, stimulation, tracer injection, cleaning, acidizing, steam injection, water flooding, cementing, etc.

Abstract

Selon la présente invention, au moins deux trous sont usinés dans un bloc de matériau ayant des liaisons d'extrémités opposées. La surface externe est arrondie et un élément réactif est monté sur l'extérieur du mandrin avec des anneaux de jauge à des extrémités opposées pour contenir l'élément lorsqu'il se déplace vers la position établie. Des fluides de puits présents ou ajoutés au puits font s'étendre radialement le matériau gonflant pour le mettre en contact avec un élément tubulaire environnant afin d'obtenir un joint d'étanchéité. La petite taille de ladite barrière à deux trous permet de l'insérer dans des boîtier de tailles plus petites tout en augmentant au maximum la dimension du trou pour obtenir une réduction de la résistance à l'écoulement. Les trous peuvent être espacés de manière régulière autour d'un axe central et peuvent être de même taille ou de tailles différentes dans les limites d'une plage de 20 %. Les trous peuvent être excentriques par rapport à un axe central tout en étant à la même dimension radiale ou à des dimensions radiales différentes par rapport à un axe central.
PCT/US2017/067319 2016-12-20 2017-12-19 Garniture d'étanchéité à gonflement à deux trous WO2018118921A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/384,931 US20180171740A1 (en) 2016-12-20 2016-12-20 Dual Bore Swell Packer
US15/384,931 2016-12-20

Publications (1)

Publication Number Publication Date
WO2018118921A1 true WO2018118921A1 (fr) 2018-06-28

Family

ID=62556803

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/067319 WO2018118921A1 (fr) 2016-12-20 2017-12-19 Garniture d'étanchéité à gonflement à deux trous

Country Status (2)

Country Link
US (1) US20180171740A1 (fr)
WO (1) WO2018118921A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11808110B2 (en) 2019-04-24 2023-11-07 Schlumberger Technology Corporation System and methodology for actuating a downhole device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109931013B (zh) * 2019-05-04 2020-10-09 东北石油大学 具有井眼清洁作用的加重钻杆
CN110725661B (zh) * 2019-11-06 2021-12-17 河南理工大学 一种分节螺旋橡胶囊封孔装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754812A (en) * 1987-03-23 1988-07-05 Baker Oil Tools, Inc. Dual string packer method and apparatus
US20060196670A1 (en) * 2000-10-05 2006-09-07 Andrew Richards Well testing system
US20120273119A1 (en) * 2009-11-20 2012-11-01 Vaidya Nitin Y Functionally graded swellable packers
US20130146311A1 (en) * 2011-12-07 2013-06-13 Weatherford/Lamb, Inc. Selective Set Module for Multi String Packers
US20150354315A1 (en) * 2013-01-11 2015-12-10 Schlumberger Technology Corporation Wellbore annular safety valve and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754812A (en) * 1987-03-23 1988-07-05 Baker Oil Tools, Inc. Dual string packer method and apparatus
US20060196670A1 (en) * 2000-10-05 2006-09-07 Andrew Richards Well testing system
US20120273119A1 (en) * 2009-11-20 2012-11-01 Vaidya Nitin Y Functionally graded swellable packers
US20130146311A1 (en) * 2011-12-07 2013-06-13 Weatherford/Lamb, Inc. Selective Set Module for Multi String Packers
US20150354315A1 (en) * 2013-01-11 2015-12-10 Schlumberger Technology Corporation Wellbore annular safety valve and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11808110B2 (en) 2019-04-24 2023-11-07 Schlumberger Technology Corporation System and methodology for actuating a downhole device

Also Published As

Publication number Publication date
US20180171740A1 (en) 2018-06-21

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