EP3094813A1 - Élément d'étanchéité pour un outil de fond de trou - Google Patents

Élément d'étanchéité pour un outil de fond de trou

Info

Publication number
EP3094813A1
EP3094813A1 EP14888977.7A EP14888977A EP3094813A1 EP 3094813 A1 EP3094813 A1 EP 3094813A1 EP 14888977 A EP14888977 A EP 14888977A EP 3094813 A1 EP3094813 A1 EP 3094813A1
Authority
EP
European Patent Office
Prior art keywords
sealing member
sealing
wall
downhole tool
sealmg
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.)
Granted
Application number
EP14888977.7A
Other languages
German (de)
English (en)
Other versions
EP3094813A4 (fr
EP3094813B1 (fr
Inventor
David Allen DOCKWEILER
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
Original Assignee
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
Publication of EP3094813A1 publication Critical patent/EP3094813A1/fr
Publication of EP3094813A4 publication Critical patent/EP3094813A4/fr
Application granted granted Critical
Publication of EP3094813B1 publication Critical patent/EP3094813B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1293—Packers; Plugs with mechanical slips for hooking into the casing with means for anchoring against downward and upward movement

Definitions

  • This invention relates to tools used in oil and gas wellbores. More specifically, the disclosure relates to expansion sealing elements used to prevent fluid flow through an annulus formed by a tubing within the well and th e wall of the wellbore or casing.
  • Downhole tools such as packers, bridge plugs and frac plugs are often used to seal the armulus formed by a tubing within the well and the wall of the wellbore or casing.
  • the seal for the annulus is generally established by a deformable element such as rubber or an elastomer.
  • a compressive force is generally applied to the deformable element, causing it to extrude radially outward.
  • the element extends from the outer portion of the mandrel of the downhoie tool to the wellbore wall or casing and seals between those structures.
  • FIG. 1 is a front view of a sealing element in accordance with one embodiment.
  • the sealing element is in the run-in or unset configuration.
  • FIG. 2 is a sectional view of the sealing element of FIG. 1.
  • FIG. 3 is a sectional view of the sealing element of FIG. 1 when it is being changed from the unset configuration to a set configuration.
  • FIG . 4 is a sectional view of the sealing element of FIG . 1 in the set configuration.
  • FIG. 5 is a sectional view of the sealing element in the set configuration.
  • the sealing element is set in a smaller diameter casing than that shown for FIGS. 1-4
  • FIG. 6 is a partial sectional view of a downhole tool incorporating the sealing element of one embodiment.
  • the downhole tool is shown in its run-in or unset position.
  • FIG. 7 is a partial sectional view of the downhole tool of FIG. 5 shown in its set position.
  • sealing element 10 is illustrated in its first position or unset position.
  • Sealing element 10 is shown as being within a wall 42, which can be a casing wall or welibore wall.
  • Sealing element 10 comprises a first sealing member 12 and a second sealing member 14.
  • each sealing member is made from a deformable element such as rubber or an elastomeric compound, but can be made of thermoplastic or other various soft deformable materials.
  • First sealing member 12 and second sealing member 14 are each disposed about a mandrel 16 of a downhole tool.
  • first sealing member 12 is a generally cylindrical sealing element having an outer surface 22, an inner surface 24, a first end 26 and a second end 28. First end 26 abuts first packer shoe 18.
  • inner surface 24 has an inclined inner wall 30 at second end 28.
  • Second sealing member 14 has an outer surface 32, an inner surface 34, a first end
  • first sealing member 12 is longitudinally separated f om second sealing member 14.
  • longitudinally separated it is meant that the sealing members are spaced longitudinally along mandrel 16 such that there is only a minor portion of overlap or no overlap of the sealing members, that is there is no overlap that creates any significant radial expansion and, preferably, no radial expansion of either sealing member.
  • first sealing member 12 and second sealing member 14 overlap when sealing element 10 is in its unset position; however, as will be noted, neither first sealing member 12 nor second sealing member 14 have any radial expansion due to the overlap.
  • second end 38 of second sealing member 14 can be wedged or truncated conical in shape, as shown, or can be another suitable shape such as cylindrical.
  • sealing element 10 is illustrated in transition from its unset position to its second or set position (FIG. 3) and is illustrated in its set position (FIG. 4).
  • first sealing member 12 moves from being longitudinally spaced from second sealing member 14 to being radially outward from the second sealing member such that outer surface 22 is in sealing engagement with wall 42.
  • inner surface 24 of first sealing member 12 is in sealing engagement with outer surface 32 of second sealing member 14, and inner surface 34 of second sealing member 14 is in sealing engagement with mandrel 16.
  • Sealing element 10 represents a more versatile sealing element than prior conventional sealing elements. Although designed for a specific casing diameter ("design size") such as that shown in FIGS. 1-4, sealing element 10 advantageously can also be utilized in smaller diameter casings. As shown in FIG. 5, when sealing element 10 is used in smaller diameter casing it achieves sealing without the complete overlap of sealing member 12 and sealing member 14. Thus, the amount that first sealing member 12 stretches over second sealing member 14 will be determined by the casing size. As illustrated in FIG.
  • first sealing member 12 when used in a casing having a diameter below the design size, first sealing member 12 stretches over second sealing member 14 so that only a first portion 44 of first sealing member 12 is radially outward from second sealing member 14 with the remaining portion or second portion 46 of first sealing member 12 being longitudinally spaced from second sealing member 14.
  • outer surface 22 of at least the first portion 44 of first sealing member 14 is in sealing engagement with wall 42 and, depending on the size of the casing, a majority or even all of outer surface 22 can be in sealing engagement with wall 42.
  • the inner surface 24 of a second portion 46 of first sealing member 12 is in sealing engagement with mandrel 16 and inner surface 24 of first portion 44 is in sealing engagement with outer surface 32 of second sealing member 14.
  • Inner surface 34 of second sealing member 14 is in sealing engagement with mandrel 16.
  • FIGS. 6 and 7 the use of an embodiment of the sealing element
  • FIGS. 5 and 6 illustrate downhole tool 100 as a packer tool
  • the invention is not limited to use in packer-type tools but is useful for any downhole tool for use in a wellbore requiring a fluid tight seal and is especially useful where there is a change in wellbore diameter such that the tool and expansion device must pass through a wellbore of smaller radius before being received into the wellbore where it will be placed in the set position.
  • the latter wellbore having a greater radius than the wellbore of smaller radius.
  • downhole tool 100 is shown in well comprising first wellbore or first casing 102 having a diameter Dl and a second wellbore or second casing 104 having a diameter D2.
  • Dl is less than D2.
  • Downhole tool 100 can be lowered into a well on tubing or can be lowered on a wire line or other means known in the art (not shown).
  • FIG. 5 shows the downhole tool 100 in its unset position and
  • FIG. 6 shows downhole tool 100 in its set position.
  • Downhole tool 100 comprises a mandrel 106 with an outer surface 108 and inner surface 110.
  • Mandrel 106 will typically be a dri liable material such as a polymeric composite.
  • Mandrel 106 has a bore 112 defined by inner surface 110.
  • Mandrel 106 has upper or top end 116 and lower or bottom end 1 18.
  • Bore 1 12 defines a central flow passage therethrough.
  • An end section 120 may comprise a mule shoe 120.
  • Mule shoe 120 is shown as integrally formed with the mandrel 106 but can be a separate piece that is connected with pins to mandrel 106.
  • Mule shoe 120 defines an upward facing shoulder 122 thereon.
  • Mandrel 106 has first or upper outer diameter 130, a second or first- intermediate outer diameter 132, which is a threaded outer diameter 132, a third or second-intermediate outer diameter 134 and a fourth or lower outer diameter 136. Shoulder 122 is defined by and extends between third and fourth outer diameters 134 and 136, respectively. Threads 138 are defined on threaded outer diameter 132. A. head or head portion 140 is threadedly connected to mandrel 112 and, thus, has mating buttress threads 142 thereon.
  • Head portion 140 has an upper end 144 that may comprise a plug or ball seat 146.
  • Head 140 has lower end 148 and has first, second and third inner diameters 150, 152 and 154, respectively. Buttress threads 142 are defined on third inner diameter 154. Second inner diameter 152 has a magnitude greater than first inner diameter 150 and third inner diameter 154 has a magnitude greater than second inner diameter 152. A shoulder 156 is defined by and extends between first and second inner diameters 150 and 152. Shoulder 156 and upper end 120 of mandrel 106 define an annular space 158 therebetween. In the embodiment illustrated, a spacer sleeve 160 is disposed in annular space 158. Spacer sleeve 160 has an open bore 162 so that fluid may pass unobstructed therethrough into and through longitudinal central flow passage 124.
  • Head portion 140 may be disconnected by unthreading from mandrel 106 so that instead of spacer sleeve 160, a plug may be utilized. The plug will prevent flow in either direction and, as such, the tool will act as a bridge plug.
  • a spacer ring 164 is disposed about mandrel 106 and abuts lower end 148 of head portion 140 so that it is axiallv restrained on mandrel 106.
  • Downhoie tool 100 further comprises a set of expansion apparatuses 166 as described in co-pending US Patent Application Serial Number 14/848,323, filed January 31, 2013, the disclosure of which is hereby incorporated by reference. Expansion apparatuses 166 comprise first and second or upper and lower expansion apparatuses 167 and 168.
  • Upper and lower expansion apparatuses 167 and 168 are generally identical in configuration but their orientation is reversed on mandrel 106. Expansion apparatuses 167 and 168 have slip rings 170. Slip rings 170 are segmented slip rings and are shown as having buttons 172 secured to the outer surface thereof. When downhoie tool 100 is moved to the set position, as shown in FIG. 6, buttons 172 will gripping! y engage second casing 104 to secure downhoie tool 100 in the we!ibore. Buttons 172 comprise a material of sufficient hardness to partially penetrate second casing 104 and may be comprised of metallic-ceramic composite or other material of sufficient strength. Expansion apparatuses 167 and 168 further have expansion wedges 174, which are segmented wedges.
  • Expansion wedges 174 are likewise disposed about mandrel 106. Further, expansion apparatuses 167 and 168 have wedges 176, which are disposed about mandrel 106. Wedges 176 are in contact with expansion wedges 174.
  • Sealing element 10 which is an expandable sealing element, as described above, is disposed about mandrel 106 and has first and second sealing members 12 and 14.
  • the embodiment illustrates a single sealing element; however, a multiple piece packer configuration can be used.
  • First and second sealing members 12 and 14 abut the ends of wedges 176 of upper and lower expansion apparatuses 167 and 168, respectively.
  • the downhoie tool 100 in FIG. 6, in run-in configuration or unset position, is lowered into (run-in) the well by means of a work string of tubing sections or coupled tubing attached to the upper end 144 of head portion 140, A setting tool can be part of the work string.
  • the downhole tool 100 in its unset position, fits through first casing 102, which has the smaller diameter of the two casings 102 and 104. Downhole tool 100 is then positioned in second casing 104.
  • the setting tool When downhole tool 100 is at a desired depth in the well, the setting tool is actuated and it drives spacer ring 164 from its run-in configuration to the set position shown in FIG, 7, Spacer ring 164 as well as other components, such as wedge 176 of upper expansion apparatus 167, can be held in place during run-in by shear pins.
  • the axial pressure provided by the setting tool is sufficient to shear the shear pins to allow the components held by the shear pins to move to their set position.
  • each expansion apparatus 166 is longitudinally compressed, as is sealing element 10. With sufficient compression and sufficient resultant relative movement among the components of the expansion apparatuses 166 (wedges 176, expansion wedges 174 and slip rings 170) the connections between the wedge segments of expansion wedge 174 are sheared and the connections between the slip segments of slip ring 170 are sheared thus separating the wedge segments from each other and the slip segments from each other.
  • FIG. 7 shows the downhole tool 100 in its set position with expansion apparatuses 166 in its expanded configuration and with sealing element 10 sealed against casing 104.
  • a sealing element for a downhole tool comprising a first sealing member and a second sealing member.
  • the first sealing member engages the second sealing member such that the sealing element has a first position and a second position. In the second position, the first sealing member stretches over the second sealing member.
  • the first sealing member can be radially outward from the second sealing member when the sealing element is in the second position.
  • the sealing element moves from the first position to the second position under compression or tension.
  • the first sealing member can have an inner surface with an inclined inner wall and the second sealing member can have an outer surface with inclined outer wall. The inclined inner wall matches the inclined outer wall so as to facilitate the stretching of the first sealing member.
  • the sealing element when the sealing element is in the second position, the outer surface of the first sealing member is in sealing engagement with a wall of a wellbore; the inner surface of the first sealing member is in sealing engagement with the outer surface of the second sealing member; and the inner surface of the second member is in sealing engagement with a mandrel of the downhole tool.
  • a downhole tool for use in a wellbore comprising a mandrel, a first sealing member and a second sealing member.
  • the first sealing member is disposed about the mandrel.
  • the second sealing member is disposed about the mandrel.
  • the first sealing member is longitudinally separated from the second sealing member when the downhole tool is in the unset position, and the first sealing member is radially outward from the second sealing member when the downhole tool is in the second position.
  • the first sealing member stretches over the second sealing member when the downhole tool moves from the unset position to the set position.
  • the first sealing member can have an inner surface with an inclined inner wall and the second sealing member can have an outer surface with inclined outer wall.
  • the inclined inner wall matches the inclined outer wall so as to facilitate the stretching of the first sealing member.
  • sealing element longitudinally compressing a sealing element along a central axis, wherein the sealing element has a first sealing member and a second sealing member and the compressing results in relative axial movement of the first sealing member and the second sealing member;
  • the first sealing member moves from being longitudinally separated from the second sealing member to being radially outward from the second sealing member. Also, after the first sealing member stretches over the second sealing member, the first sealing member seaiingly engages the second sealing member.
  • the first sealing member has an inner surface with an mclined inner wall and the second sealing member has an outer surface with an inclined outer wall. The inclined inner wall matches the inclined outer wall so that the first sealing member stretches over the second sealing member by the inclined inner wall moving along the inclined outer wail.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne des éléments d'étanchéité à expansion utilisés pour empêcher l'écoulement d'un fluide à travers un espace annulaire formé par des tubes à l'intérieur du puits et la paroi du puits de forage ou du tubage. Les éléments d'étanchéité à expansion sont utiles sur des outils de fond de trou comprenant ceux qui ont besoin d'être abaissés à travers un premier tubage de sorte à être placés dans un second tubage qui présente un diamètre plus grand que celui du premier tubage.
EP14888977.7A 2014-04-09 2014-04-09 Élément d'étanchéité pour un outil de fond de trou Active EP3094813B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/033508 WO2015156796A1 (fr) 2014-04-09 2014-04-09 Élément d'étanchéité pour un outil de fond de trou

Publications (3)

Publication Number Publication Date
EP3094813A1 true EP3094813A1 (fr) 2016-11-23
EP3094813A4 EP3094813A4 (fr) 2017-08-16
EP3094813B1 EP3094813B1 (fr) 2019-12-04

Family

ID=54288217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14888977.7A Active EP3094813B1 (fr) 2014-04-09 2014-04-09 Élément d'étanchéité pour un outil de fond de trou

Country Status (6)

Country Link
US (1) US20160265303A1 (fr)
EP (1) EP3094813B1 (fr)
AU (1) AU2014390013B2 (fr)
CA (1) CA2939070C (fr)
MX (1) MX2016011592A (fr)
WO (1) WO2015156796A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9835003B2 (en) * 2015-04-18 2017-12-05 Tercel Oilfield Products Usa Llc Frac plug
US20200048981A1 (en) * 2018-08-07 2020-02-13 Petroquip Energy Services, Llp Frac Plug with Sealing Element Compression Mechanism
WO2019194813A1 (fr) 2018-04-05 2019-10-10 Halliburton Energy Services, Inc. Dispositif d'isolation de puits de forage
US11384620B2 (en) 2018-04-27 2022-07-12 Halliburton Energy Services, Inc. Bridge plug with multiple sealing elements

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GC0000398A (en) * 2001-07-18 2007-03-31 Shell Int Research Method of activating a downhole system
US6827150B2 (en) * 2002-10-09 2004-12-07 Weatherford/Lamb, Inc. High expansion packer
GB0317547D0 (en) * 2003-07-26 2003-08-27 Weatherford Lamb Sealing tubing
NO325912B1 (no) * 2005-03-15 2008-08-18 Easy Well Solutions As Anordning og fremgangsmate for a sette en bunnpakning i et borehull
GB0515070D0 (en) * 2005-07-22 2005-08-31 Moyes Peter B Downhole tool
US7387158B2 (en) * 2006-01-18 2008-06-17 Baker Hughes Incorporated Self energized packer
GB0802237D0 (en) * 2008-02-07 2008-03-12 Swellfix Bv Downhole seal
US8087459B2 (en) * 2009-03-31 2012-01-03 Weatherford/Lamb, Inc. Packer providing multiple seals and having swellable element isolatable from the wellbore
US20100263876A1 (en) * 2009-04-21 2010-10-21 Frazier W Lynn Combination down hole tool
US9470060B2 (en) * 2012-09-06 2016-10-18 Weatherford Technology Holdings, Llc Standoff device for downhole tools using slip elements
US9004160B2 (en) * 2013-01-09 2015-04-14 Donald J. Greenlee Downhole tool apparatus with slip plate and wedge

Also Published As

Publication number Publication date
CA2939070A1 (fr) 2015-10-15
US20160265303A1 (en) 2016-09-15
AU2014390013B2 (en) 2018-02-01
MX2016011592A (es) 2016-11-29
WO2015156796A1 (fr) 2015-10-15
EP3094813A4 (fr) 2017-08-16
AU2014390013A1 (en) 2016-08-04
CA2939070C (fr) 2018-01-23
EP3094813B1 (fr) 2019-12-04

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