EP3085884A1 - Ensemble extensible de fond de trou et système de fond de trou - Google Patents

Ensemble extensible de fond de trou et système de fond de trou Download PDF

Info

Publication number
EP3085884A1
EP3085884A1 EP15164694.0A EP15164694A EP3085884A1 EP 3085884 A1 EP3085884 A1 EP 3085884A1 EP 15164694 A EP15164694 A EP 15164694A EP 3085884 A1 EP3085884 A1 EP 3085884A1
Authority
EP
European Patent Office
Prior art keywords
expandable
downhole
metal sleeve
screen
tubular
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.)
Withdrawn
Application number
EP15164694.0A
Other languages
German (de)
English (en)
Inventor
Paul Hazel
Ricardo Reves Vasques
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.)
Welltec AS
Original Assignee
Welltec AS
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 Welltec AS filed Critical Welltec AS
Priority to EP15164694.0A priority Critical patent/EP3085884A1/fr
Priority to PCT/EP2016/058837 priority patent/WO2016170026A1/fr
Publication of EP3085884A1 publication Critical patent/EP3085884A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/108—Expandable screens or perforated liners

Definitions

  • the present invention relates to a downhole expandable assembly for arrangement in a borehole in a well to prevent formation collapse of an unconsolidated sand formation. Furthermore, the invention relates to a downhole system comprising a well tubular structure, a first and a second annular barrier and a downhole expandable assembly.
  • sand In unconsolidated sand formations, sand has a higher risk of loosening during oil or gas production than in consolidated formations. If sand loosens during production, there is a risk of the sand formation collapsing, causing sand to flow with the production flow. As the sand-filled fluid flows in through openings in the completion components, such as inflow valves, the openings are very quickly enlargened and the components quickly have no function as the components are worn.
  • expandable screens are expanded by cones forced through the inside of the expandable screen, thereby forcing the screen radially outwards into abutment with the sand formation.
  • the known expandable screens are known to collapse very quickly after being set and are thus unable to support the unconsolidated sand formation.
  • a downhole expandable assembly for arrangement in a borehole in a well to prevent formation collapse of an unconsolidated sand formation, comprising:
  • the expandable screen may comprise a screen element made of wounded wires or slotted liners.
  • the expandable screen may comprise layers of wounded wires or slotted liners.
  • the expandable screen may comprise projecting elements configured to maintain a distance between the screen element and the expandable metal sleeve.
  • the expandable metal sleeve may comprise projections and/or grooves configured to provide a flow along the outer face of the expandable metal sleeve.
  • the ends of the expandable metal sleeve may be welded to the tubular part.
  • the ends of the expandable metal sleeve may be connected to the tubular part by means of connection parts.
  • ends of the expandable metal sleeve may be crimped onto the tubular part.
  • the expandable screen may have a first end part connected to the tubular metal part.
  • the expandable screen may have a second end part extending past the expandable metal sleeve along the longitudinal extension of the tubular metal part.
  • connection parts may be connected to the tubular metal part by means of connection parts, the connection parts each having a connection element overlapping the expandable screen and the expandable metal sleeve.
  • the downhole expandable assembly may further comprise an inflow device arranged adjacent to the expandable metal sleeve
  • the expandable screen may at least partly overlap the inflow device, providing fluid communication between the expandable screen and the inflow device.
  • the downhole expandable assembly may further comprise a shroud fluidly connected with the expandable screen.
  • shroud may overlap the inflow device.
  • the inflow device may be in fluid communication with a production opening in the tubular structure.
  • inflow devices may be arranged adjacent to the first and the second end of the expandable metal sleeve, respectively.
  • the expansion opening may be arranged opposite the annular space.
  • a screen may be arranged opposite the expansion opening in the annular space.
  • the expandable metal sleeve may have areas of metal material being permeable above a predetermined pressure.
  • the expandable metal sleeve may be designed to fracture at a predetermined pressure above the expansion pressure to provide an aperture in the expandable metal sleeve through which production fluid is allowed to flow.
  • the expandable metal sleeve may comprise a shear disc providing an aperture in the expandable metal sleeve through which production fluid is allowed to flow.
  • the present invention furthermore relates to a downhole system comprising:
  • the downhole system may further comprise a well data monitoring device.
  • the well data monitoring device may comprise at least one sensor, a storing unit, a communication module and/or a power supply.
  • the downhole system may further comprise a plurality of downhole expandable assemblies arranged in the first production zone.
  • the downhole system may further comprise a third annular barrier providing a second production zone.
  • the downhole system may further comprise a plurality of downhole expandable assemblies arranged in the second production zone.
  • Fig. 1 shows a downhole expandable assembly 1 arranged in a borehole 2 in a well 3 to prevent formation collapse of an unconsolidated sand formation 4.
  • the downhole expandable assembly 1 comprises a tubular metal part 7 mounted as part of a well tubular structure 5.
  • the tubular metal part 7 has a longitudinal extension and an expansion opening 6.
  • the downhole expandable assembly 1 further comprises an expandable metal sleeve 8 surrounding the tubular metal part 7 and having an inner face 9 facing the tubular metal part and an outer face 10 facing a wall 11 of the borehole 2.
  • the downhole expandable assembly 1 further comprises an expandable screen 16 arranged on the outer face 10 of the expandable metal sleeve 8 so that the expandable screen 16 is forced radially outwards by the expandable metal sleeve during expansion of the expandable metal sleeve into a position where the expandable screen at least partly abuts the unconsolidated sand formation, as shown in Fig. 1 .
  • the downhole expandable assembly 1 is expanded by pressurised fluid entering the expansion opening 6, causing the expandable screen to expand to abut and support the sand formation and thus prevent the sand from loosening from the formation.
  • the tubular metal part 7 is pressurised either from surface or by means of a tool isolating a zone inside the tubular metal part 7 opposite the opening.
  • the expandable screen 16 is expanded evenly along the circumference of the expandable screen while still being able to conform to the borehole 2.
  • the cone expands the screen equally and thus also widens the borehole in the areas where the borehole is not perfectly round, creating a risk of destroying the cohesion of the sand formation and initiating the unconsolidation of the formation.
  • the ends of the expandable metal sleeve 8 are welded to the tubular part 7 by means of weldings 23.
  • the expandable screen 16 is also welded to the tubular part, as shown in Fig. 1 .
  • the expandable screen 16 comprises a screen element 17 made of wounded wires or slotted liners.
  • the expandable screen 16 comprises layers of wounded wires or slotted liners, allowing fluid from the formation to flow into the expandable screen and along the screen up and down the layers and thus along the longitudinal extension of the expandable screen.
  • the expandable screen 16 comprises projecting elements 19 configured to maintain a distance D between the screen element 17 and the expandable metal sleeve 8, thereby creating flow channels 27 or one annular channel 27 underneath the screen.
  • the projecting elements 19 are elongated elements or dot-shaped elements. When the expandable screen 16 has such projecting elements 19, the screen element 17 only has one slotted liner or one wounded layer as the fluid is able to flow along the longitudinal extension in the flow channel/-s 27.
  • the expandable metal sleeve 8 comprises projections 21 and grooves 22 enabling fluid from the formation to flow along the outer face 10 of the expandable metal sleeve 8 in flow channels 27.
  • fluid flowing through the expandable screen 16 can flow along the grooves 22 and out on either side of the downhole expandable assembly 1 and into the well tubular structure through a production opening 26 in the well tubular structure at a distance from the downhole expandable assembly 1, as shown in Fig. 6 .
  • the ends 12, 13 of the expandable metal sleeve 8 may be connected to the tubular part 7 by means of connection parts 24 having connection elements 29 overlapping the expandable screen 16 and the expandable metal sleeve 8, as shown in Fig. 4 .
  • the ends of the expandable metal sleeve 8 may be crimped onto the tubular part 7 so that both the expandable screen 16 and the expandable metal sleeve 8 are connected to the tubular metal part 7 in connection parts 24, as shown in Fig. 4 , or by welded connections, as shown in Fig. 5 .
  • the expandable screen 16 has a first end part 24 which is welded to the tubular part 7 together with the first end 12 of the expandable metal sleeve 8, and the expandable screen 16 has a second end part 25 extending past the second end 13 of the expandable metal sleeve 8 along the longitudinal extension of the tubular metal part 7.
  • the expandable screen 16 thus extends past an inflow device 28, such as a well inflow valve, controlling the inflow of production fluid.
  • the second end part 25 extending past the second end 13 of the expandable metal sleeve 8 is welded to the inflow device 28, and an annular channel is defined between the expandable screen 16 and the inflow device 28 to collect production fluid flowing in through the screen along the entire circumference and lead the fluid to one or two production openings 26 in the tubular structure 5.
  • the inflow device 28 is arranged adjacent to the expandable metal sleeve 8.
  • the expandable screen 16 only partly overlaps the inflow device 28, just enough to direct the fluid into the inflow device 28.
  • a downhole system 100 comprising the well tubular structure 5, annular barriers 30 and the downhole expandable assembly 1 is shown.
  • the well tubular structure 5 is arranged in the borehole 2 in an unconsolidated sand formation 4, and a first and a second annular barrier 30 are expanded to isolate a production zone 101.
  • Each annular barrier 30 comprises a tubular metal barrier part 7a mounted as part of the well tubular structure 5 as well as an expandable barrier metal sleeve 8a surrounding the tubular metal barrier part 7a and having an inner barrier face 31 facing the tubular metal barrier part and an outer barrier face 32 facing the wall 11 of the borehole.
  • Each end of the expandable metal barrier sleeve 8a is connected with the tubular metal barrier part 7a, defining an annular barrier space 33 between the inner barrier face of the expandable metal barrier sleeve and the tubular metal barrier part.
  • the downhole expandable assembly 1 is arranged in the first production zone 101 between the first and second annular barriers 30.
  • One inflow device 28 is arranged adjacent to the first end 12 of the expandable metal sleeve and a second inflow device 28 is arranged adjacent to the second end 13 of the expandable metal sleeve.
  • the annular barriers are expanded by pressurised fluid in the tubular metal barrier part 7a flowing in through an expansion opening 6a in the tubular metal barrier part 7a and into the annular space opposite the expansion opening 6a.
  • the expandable assembly 1 supports most of the sand formation in the production zone 101, and the production fluid from the formation can flow into either one of the inflow devices 28.
  • the downhole system 100 further comprises a well data monitoring device 34 for monitoring the condition of the well and the well fluid/production fluid.
  • the well data monitoring device 34 has sensors for measuring pressure, temperature, flow content etc.
  • the well data monitoring device 34 comprises a storing unit and a communication module for communicating the well data to surface, e.g. by means of a tool arranged opposite the well data monitoring device 34 or through a communication system in the well.
  • the well data monitoring device 34 may further comprise a power supply, such as a rechargeable battery.
  • the downhole expandable assembly 1 further comprises a shroud 35 connected with the expandable screen 16 and overlapping the inflow device 28, thereby creating a fluid channel 38 between the shroud 35 and the inflow device 28 for collecting fluid and directing the fluid into the inflow device 28 and out though the production opening 26.
  • the inflow device 28 may also be arranged in the production opening 26 in the tubular structure.
  • the downhole system 100 may, instead of one long downhole expandable assembly 1, comprise a plurality of downhole expandable assemblies 1 arranged in the first production zone 101, as shown in Fig. 8 .
  • Inflow devices 28 are arranged between the downhole expandable assemblies 1 opposite production openings 6 in the tubular structure 5.
  • the first production zone 101 is defined as between the two annular barriers.
  • the downhole system 100 may in another embodiment comprise a third annular barrier arranged next two one of the annular barriers, thereby providing a second production zone (not shown), and second downhole expandable assemblies 1 may be arranged in a similar manner in the second zone and so forth.
  • Fig. 9 shows the expandable metal sleeve 8 having areas of metal material being permeable, e.g. above a predetermined pressure. During expansion, the expansion pressure is so high that even though some fluid may leak through these areas, the expansion still occurs.
  • the areas may be made of a metal material which is impermeable up to a predetermined pressure, and above that pressure, the material of the areas becomes permeable, also when the pressure subsequently decreases again. In another embodiment, the areas are shear discs bursting at a predetermined pressure.
  • the expandable metal sleeve 8 may also be designed to fracture at a predetermined pressure above the expansion pressure to provide an aperture 44 in the expandable metal sleeve through which production fluid is allowed to flow.
  • a screen 45 is arranged opposite the expansion opening 6 in the annular space 15 so that the production fluid or well fluid is slowed downhole when entering the expansion opening or so that the fluid is further filtered.
  • the expandable metal sleeve comprises a shear disc providing the aperture in the expandable metal sleeve through which production fluid is allowed to flow.
  • the shear disc may also be provided in a connection part or in one of the ends of the expandable metal sleeve.
  • pressurised fluid is expanding the expandable metal sleeve 8, and the first end 12 is then pressed to abut the connection part 24 so that fluid is prevented from circumferenting the first end 12.
  • Fig. 12B the expansion has ended and the pressure in the annular space 15 has decreased, and the first end 12 of the expandable metal sleeve 8 is thus no longer forced against the connection part 24. Then, fluid is allowed to flow past the first end 12 or flow through an opening 46 in the first end.
  • the system may further comprise an isolation tool arranged opposite the expansion opening for isolating a zone opposite the opening and thus expanding the sleeve by pressurised fluid.
  • fluid or well fluid any kind of fluid that may be present in oil or gas wells downhole, such as natural gas, oil, oil mud, crude oil, water, etc.
  • gas is meant any kind of gas composition present in a well, completion, or open hole
  • oil is meant any kind of oil composition, such as crude oil, an oil-containing fluid, etc.
  • Gas, oil, and water fluids may thus all comprise other elements or substances than gas, oil, and/or water, respectively.
  • a casing or well tubular structure is meant any kind of pipe, tubing, tubular, liner, string etc. used downhole in relation to oil or natural gas production.
  • a downhole tractor can be used to push the tool all the way into position in the well.
  • the downhole tractor may have projectable arms having wheels, wherein the wheels contact the inner surface of the casing for propelling the tractor and the tool forward in the casing.
  • a downhole tractor is any kind of driving tool capable of pushing or pulling tools in a well downhole, such as a Well Tractor®.

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)
  • Piles And Underground Anchors (AREA)
EP15164694.0A 2015-04-22 2015-04-22 Ensemble extensible de fond de trou et système de fond de trou Withdrawn EP3085884A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15164694.0A EP3085884A1 (fr) 2015-04-22 2015-04-22 Ensemble extensible de fond de trou et système de fond de trou
PCT/EP2016/058837 WO2016170026A1 (fr) 2015-04-22 2016-04-21 Ensemble pouvant être agrandi en fond de trou et système de fond de trou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15164694.0A EP3085884A1 (fr) 2015-04-22 2015-04-22 Ensemble extensible de fond de trou et système de fond de trou

Publications (1)

Publication Number Publication Date
EP3085884A1 true EP3085884A1 (fr) 2016-10-26

Family

ID=52997946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15164694.0A Withdrawn EP3085884A1 (fr) 2015-04-22 2015-04-22 Ensemble extensible de fond de trou et système de fond de trou

Country Status (2)

Country Link
EP (1) EP3085884A1 (fr)
WO (1) WO2016170026A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019112718A1 (fr) * 2017-12-04 2019-06-13 Baker Hughes, A Ge Company, Llc Écran sélectivement extensible pour un système d'exploration et de récupération de ressources

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3492693A1 (fr) * 2017-12-04 2019-06-05 Welltec Oilfield Solutions AG Dispositif de restriction de production d'entrée de fond de trou

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6412565B1 (en) * 2000-07-27 2002-07-02 Halliburton Energy Services, Inc. Expandable screen jacket and methods of using same
US6530431B1 (en) * 2000-06-22 2003-03-11 Halliburton Energy Services, Inc. Screen jacket assembly connection and methods of using same
US20030221829A1 (en) * 2000-12-07 2003-12-04 Patel Dinesh R. Well communication system
US20040104026A1 (en) * 2001-01-16 2004-06-03 Johnson Craig D. Expandable systems that facilitate desired fluid flow
WO2014109732A1 (fr) * 2013-01-08 2014-07-17 Halliburton Energy Services, Inc. Outil de complétion de puits a crible extensible

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6530431B1 (en) * 2000-06-22 2003-03-11 Halliburton Energy Services, Inc. Screen jacket assembly connection and methods of using same
US6412565B1 (en) * 2000-07-27 2002-07-02 Halliburton Energy Services, Inc. Expandable screen jacket and methods of using same
US20030221829A1 (en) * 2000-12-07 2003-12-04 Patel Dinesh R. Well communication system
US20040104026A1 (en) * 2001-01-16 2004-06-03 Johnson Craig D. Expandable systems that facilitate desired fluid flow
WO2014109732A1 (fr) * 2013-01-08 2014-07-17 Halliburton Energy Services, Inc. Outil de complétion de puits a crible extensible

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019112718A1 (fr) * 2017-12-04 2019-06-13 Baker Hughes, A Ge Company, Llc Écran sélectivement extensible pour un système d'exploration et de récupération de ressources

Also Published As

Publication number Publication date
WO2016170026A1 (fr) 2016-10-27

Similar Documents

Publication Publication Date Title
US20220025730A1 (en) Downhole Well Tools and Methods of Using Such
AU2020204498B2 (en) Downhole straddle assembly
US20190178063A1 (en) Well screen assembly with extending screen
WO2009142957A1 (fr) Système pour perforer une colonne perdue cimentée ayant des lignes ou des outils à l'extérieur de la colonne perdue
WO2016174239A1 (fr) Système de fond de trou
US9677388B2 (en) Multilateral sand management system and method
US20160097254A1 (en) Isolation Barrier
EP3085884A1 (fr) Ensemble extensible de fond de trou et système de fond de trou
US20220195832A1 (en) Downhole completion system
US11208866B2 (en) Annular barrier
EP3482037B1 (fr) Barrière annulaire avec tube de dérivation
EP3658744B1 (fr) Barrière annulaire de puits de faible diamètre
EP3106605A1 (fr) Procédé de redressage et système de complétion redressé
US20160369603A1 (en) Redressing method and redressed completion system
GB2548768A (en) Well screen assembly with extending screen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170427