WO2013103789A2 - Dispositif de localisation hydraulique de train de tiges interne de massif de gravier - Google Patents
Dispositif de localisation hydraulique de train de tiges interne de massif de gravier Download PDFInfo
- Publication number
- WO2013103789A2 WO2013103789A2 PCT/US2013/020249 US2013020249W WO2013103789A2 WO 2013103789 A2 WO2013103789 A2 WO 2013103789A2 US 2013020249 W US2013020249 W US 2013020249W WO 2013103789 A2 WO2013103789 A2 WO 2013103789A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- location
- inner string
- downhole
- string
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims 1
- 238000012856 packing Methods 0.000 abstract description 6
- 241000282472 Canis lupus familiaris Species 0.000 description 24
- 239000004576 sand Substances 0.000 description 10
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B43/04—Gravelling of wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
Definitions
- Horizontal wells that require sand control are typically open hole completions.
- stand-alone sand screens have been used predominately in these horizontal open holes.
- operators have also been using gravel packing in these horizontal open holes to deal with sand control issues.
- the gravel is a specially sized particulate material, such as graded sand or proppant, which is packed around the sand screen in the annulus of the borehole. When applied, the gravel acts as a filter to keep any fines and sand of the formation from migrating with produced fluids.
- proper linear spacing of an inner service tool relative to outer components of the assembly can be particularly important.
- the service tool for a gravel pack assembly is typically moved to perform various functions during gravel pack
- an adjustment device is used to adjust a length of an inner string deployed in a downhole assembly, such as a toe-to-heel gravel pack assembly.
- the device has first and second (tubular) members telescopically coupled together.
- the first member is coupled to one portion of the inner string, while the second member is coupled to another portion of the inner string.
- a ratchet disposed on the first member can engage a catch on the second member to fix the length of the adjustment device.
- the ratchet can include a dog having a plurality of chamfered teeth.
- the catch which is movable relative to the ratchet, can include a plurality of grooves defined around the outside of the second member to engage the teeth of the ratchet dog.
- the inner string and device are deployed in the downhole assembly to determine proper space out of the inner string for subsequent operation, such as gravel packing.
- the first and second members of the device are in an extended condition.
- the ratchet allows the second member to move in one direction relative to the first member so the device can collapse and shorten the length of the inner string.
- a key between the two members can ride in a slot, which allows the two members to slide relative to one another but not rotate.
- the ratchet engages the catch (i.e., the teeth on the dog engages in the grooves) to prevent the second member from moving in an opposite direction relative to the first member.
- the device does not extend again as the inner string is pulled uphole so the device is maintained in one fixed length.
- operators can permanently maintain the adjustment device in its fixed length determined downhole by installing a locking element between first and second telescoping members. For example, operators can replace the ratchet dogs with chamfered teeth with locking dogs having unchamfered teeth. Engaged in the grooves of the catch, the locking dog will prevent movement of the second member in either direction inside the first member.
- a downhole assembly such as a gravel pack assembly
- a body passage therethrough.
- First sealing surfaces or seats disposed in the body passage separate a sealable space in the body passage.
- these seats can be polished surfaces in the body passage having a smaller diameter than the rest of the passage.
- An inner string such as an inner string of a gravel pack assembly, is movably disposed in the body passage and defines a bore for communicating fluid from a surface pump to an outlet port on the inner string.
- a valve in the bore can divert the pumped fluid out the outlet port.
- First seals disposed on the inner string selectively seal with the first seats when the inner string is moved in the body.
- the outlet port communicates the pumped fluid into the sealable space of the body, which produces a measureable pressure buildup.
- a first position of the inner string can then be correlated to the known location of the sealable space in the downhole assembly.
- a second position for the inner string in the body can then be calculated based on a known distance in the downhole assembly from the first location to a second location of another feature, such as a port in the assembly.
- Fig. 1 shows a gravel pack assembly having an adjustment device and a hydraulic locating device for an inner string.
- Fig. 2 shows a cross-section of an adjustment device according to the present disclosure.
- Fig. 3 shows a detail of a ratchet dog and grooves for the disclosed adjustment device.
- Figs. 4A-4B shows the adjustment device in a fully collapsed state along different cross-sectional planes.
- Fig. 5A shows portion of the assembly and locating device in an initial stage of engagement.
- Fig. 5B shows portion of the assembly and locating device in a sealed stage of engagement.
- Fig. 5C shows portion of the assembly and locating device in a subsequent stage of engagement.
- Fig. 6 shows portion of the assembly having another locating device with an integral housing.
- Figure 1 shows a downhole assembly 100 having an adjustment device 30 and a locating device 160 according to the present disclosure.
- the downhole assembly 100 is a gravel pack assembly, although other type of assemblies used downhole can benefit from the disclosed devices 30 and 160.
- a cementing assembly for cementing a liner in an open borehole may benefit from the disclosed devices 30 and 160.
- other suitable downhole assemblies for one or both of the devices 30 and 160 will be apparent to one of ordinary skill in the art.
- the gravel pack assembly 100 has multiple gravel pack sections 102A-B, but the assembly 100 can generally have one or more sections. With multiple sections 102A-B, however, the assembly 100 segments compartmentalized reservoir zones so that multiple gravel pack and frac pack operations can be performed in the borehole 10. Isolating elements 104, such as packers, can dispose between these gravel pack sections 102A-B to isolate them from one another.
- the gravel pack assembly 100 can be similar to the gravel pack assemblies disclosed in incorporated U.S. Appl. Ser. No.
- the gravel pack assembly 100 is a toe-to-heel gravel pack system that allows operators to pack the borehole 10 from the toe to heel in each section 102A-B.
- each gravel pack section 102A-B has two screens 140A-B, alternate path devices or shunts 150, and ported housings 130A-B with ports 132A-B, although any of the other disclosed variations can be used.
- gravel pack operations with the assembly 100 involve initially deploying an inner string 1 10 into the first gravel pack section 102A.
- a conveyance 20 manipulates the inner string 1 10 and can use any of the conveyance methods known in the art.
- a pumping system 22 can pump fluid and/or slurry for a gravel or frac pack operation down the inner string 1 10 as needed, and a pressure sensor 24 can detect a buildup of pressure caused by the pumped fluid.
- Many of these features are conventional components and are not described in detail here.
- the assembly 100 can commence with gravel pack operations.
- the string's outlet ports 1 12 with its seals 1 14 isolate in fluid communication with the lower flow ports 132A in the first housing 130A of the first section 102A.
- Positioning the string's ports 1 12 with the flow ports 132A requires operators to calculate distances and determine the string's position in the assembly 100 relative to the ports' locations.
- the assembly 100 uses a hydraulic locating device 160 as discussed in detail below. As shown, the device 160 is preferably located between the shoe track 120 and the ported housing 130A.
- the inner string 1 10 can again be moved so that the outlet ports 1 12 isolate to upper flow ports 132B connected to the shunts 150 in this first section 102A. Slurry pumped down the inner string 1 10 can then fill the borehole annulus around the lower end of the shoe track 120, which can be done to further pack the borehole 1 0 or to dispose of excess slurry from the string 1 10.
- the inner string 1 10 in this toe-to-heel assembly 100 first locates at the bottom of the shoe track 120 to communicate washdown fluid out the float shoe 122 as described above.
- the gravel pack operation then proceeds with the inner string 1 10 being moved to a number of flow ports 1 32 along the assembly 100. If the inner string 1 10 is not run or spaced out properly, then operations will not proceed effecting, and the assembly 1 00 may become damaged.
- the adjustment device 30 has an upper member 40 with a distal member 60 telescopically disposed therein.
- the distal member 60 is linearly expandable and collapsible relative to the upper member 40.
- Figure 2 shows the adjustment device 30 in more detail.
- the device 30 includes an upper (tubular) member 40 and a distal (tubular) member 60 telescopically disposed therein.
- the device 30 is shown with two telescoping members 40 and 60, more members could be used.
- the upper member 40 has a coupling 42 that couples to uphole components (not shown), such as an uphole portion of the inner string (1 10).
- the distal member 60 extends from the upper member's downhole end, and the two members 40 and 60 may be initially held in an extended condition by shear pins 46 or the like.
- Ratchet dogs 50 are disposed in slots 45 around the outside of the upper member 40, and a retaining sleeve 44 disposed on the upper member 40 helps hold the ratchet dogs 50 in place. Seals 62 on the distal member 60 engage inside the upper member 40 to inhibit fluid flow between the members 40 and 60.
- the outside of the distal member 60 has catches or grooves 65 spaced apart from one another along most of the member's length.
- the actual length of the members 40 and 60 can be much greater than depicted in Figure 2 so that the distal member 60 can expand and collapse a considerable distance as need for an implementation.
- the device 30 is shown extended as when it is initially run downhole.
- the ratchet dogs 50 engage in the topmost catch grooves 65 on the distal member 60.
- the members 40 and 60 collapses, and the ratchet dogs 50 ratchet up the catch grooves 65 on the distal member 60.
- Figure 3 shows a detail of the ratchet dogs 50 engaging in catch grooves 65 on the distal member 60.
- the ratchet dogs 50 have a number of teeth 55 with chamfered leading edges. As the distal member 60 moves into the upper member 40, the chamfered teeth 55 let the catch grooves 65 pass thereby.
- Springs 52 disposed behind the ratchet dogs 50 bias them toward the surface of the distal member 60 so the teeth 55 can engage in the catch grooves 65.
- the springs 52 can be leaf springs or other types of biasing elements.
- the catch grooves 65 are arranged in sets to engage the multiple teeth 55 on the ratchet dogs 50, but it will be appreciated that a number of ratcheting mechanisms can be used, including those conventionally used in downhole tools for packers or sliding sleeves.
- the assemblies 40 and 60 collapse together until the upper member 40 (or some other part of the inner string 1 10) shoulders out in the assembly 100. Shouldering can be achieved in a number of ways.
- the assembly 100 can have a restricted passage that allows the distal member 60 to pass therethrough when bottoming out in the assembly 100, but the restricted passage engages the upper member 40 when moved against it.
- Figures 4A-4B show different cross-sections of the adjustment device 30 in a fully collapsed position.
- Figure 4A shows the ratchet dogs 50 disposed in the upper member 40 for engaging the outer catch grooves 65 in the distal member 60.
- the dogs 50 are preferably arranged consistently about the circumference of the members 40 and 60, although they need not be at the same longitudinal location.
- Figure 4B shows a key 70 disposed in the upper member 40 and held by the sleeve 44.
- the key 70 rides within a longitudinal groove 67 along a length of the distal member 60.
- the two members 40 and 60 can slide relative to one another, but the key 70 prevents rotation of the members 40 and 60 relative to one another.
- one key 70 is shown, more than one key 70 may be used.
- the inner string 1 10 runs to the very bottom of the assembly 100 to the shoe track 120 for washdown during gravel pack operations. Then, the inner string 1 10 is manipulated in the assembly 100 to a number of ports 132A-132B and other positions to perform the gravel pack operations in the various sections 102A-B. As will be appreciated, knowing the location (distance) of various features (ports, etc.) relative to the position of the inner string 1 10 in the assembly 100 can help operators move and position the inner string 1 10 properly and effectively in the assembly 100 during operations.
- the gravel pack assembly 100 includes one or more locating device 160 disposed thereon for locating the inner string 1 10 at different positions in the assembly 100.
- one of the locating devices 160 can be disposed near the shoe track 120 between the float shoe 122 and the first ports 132A on the ported housing 130A of the first section 102A. Having the device 160 in this location allows operators to correlate the inner string's position to at least one location in the assembly 100, and preferably the furthest location.
- the length of the assembly 100, the length of the inner string 1 10 to reach the assembly's end, drag forces, friction, possible deflection, and other factors may make conventional techniques for locating the inner string 1 10 in the assembly 100 difficult. Therefore, having the locating device 160 in this distal location of the assembly 100 can be beneficial for determining other positions for the inner string 1 10 in the assembly 100.
- each section 102A-B of the assembly 100 can have a comparable locating device 160 so positions for the inner string 1 10 can be determined at multiple locations when performing operations. In the end, this can help operators find the various ports 132A-B individually in the sections 102A-B.
- the locating device 160 uses hydraulic techniques for locating the position of the inner string 1 10 in the assembly 100.
- FIGs 5A-5C portion of the assembly 100 is shown with the inner string 1 10 disposed in a locating device 160.
- the locating device 160 includes a tubular 161 connected by a downhole coupling 162 to the shoe track 120 and connected by an uphole coupling 163 to a ported housing 130.
- the device 160 could be located elsewhere on the assembly 100, in which case the couplings 162, 163 would couple to other components, such as between uphole and downhole sections 102A-B of the assembly 100.
- the device 160 can be an integral component as shown in Figure 6 having its tubular housing 161 with coupling members formed thereon. Either way, the device 160 of Figures 5A-5C and 6 has an inner passage 165 that is in fluid communication with passages 135 and 125 of the housing 130 and shoe track 120.
- the inner passage 165 forms a sealable space with internal sealing surfaces or seats 164 disposed at both ends. These seats 164 can be internal polished surfaces with a reduced diameter from the other passages 125/135/165.
- the inner string 1 10 has external seals 1 14 disposed one each side of outlet ports 1 12.
- the seals 1 14 are adapted to engage the inner polished seats 164 of the couplings 161 , 163 as discussed below. (A reverse arrangement may also be used in which the couplings 161 , 163 have internal seals for engaging polished seats on the inner string 1 10.) As shown here, the inner string 1 10 also includes a valve (i.e., seat 1 16 and dropped ball 1 18) that can close off fluid flow down the string 1 10 and divert the flow out the outlet ports 1 12. Other valve arrangements could also be used, or the distal end of the inner string 1 10 can be permanently closed off.
- a valve i.e., seat 1 16 and dropped ball 1 18
- the circulated fluid is water, brine, or some other type of carrying or washdown fluid.
- the circulated fluid could include gravel packing slurry or frac treatment.
- the circulated fluid can flow downhole in the annulus between the string 1 10 and assembly 100 (i.e., shoe track 120 and other downhole component).
- the upper seal 1 14 of the string 1 10 engages the lower seat 164 of the locating device 160.
- the locating device 160 works regardless of the amount of pipe and drag in the inner string 1 10 when manipulated in the assembly 100. Therefore, at any time during operations, this known location of the device 160 can be found by movement of the string 1 10 and slow pumping until indication is observed so calculations to other locations can be
- Movement of the inner string 1 10 in the assembly 100 of Figures 5A-5C has been uphole.
- the locating device 160 can operate equally as well with downhole movement of the string 1 10 in the device 160.
- the locating device 160 has been used on a particular gravel pack assembly 100 in which gravel packing occurs from toe-to-heel, the features of the locating device 160 and inner string 1 10 can be used on any suitable downhole assembly in which circulated fluid from a port on the string 1 10 can help locate the string's position in the locating device 160 and further help determine other positions for the string 1 10 in the downhole assembly.
- the locating device 160 could be used with a conventional gravel pack assembly and a crossover tool, or the locating device 160 could be used with a cementing assembly and a service tool. Additionally, the locating device 160 can be helpful in locating an inner string in a number of downhole components, such as locating in an extend reach frac pack assembly, a multi-zone frac system, an inflatable packer, and others. Accordingly, the above- description directed to the particular gravel pack assembly 100 is meant to be illustrative of a particular application of the disclosed subject matter.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13702272.9A EP2800868B1 (fr) | 2012-01-06 | 2013-01-04 | Dispositif de localisation hydraulique de train de tiges interne de massif de gravier |
SG11201403363SA SG11201403363SA (en) | 2012-01-06 | 2013-01-04 | Gravel pack inner string hydraulic locating device |
BR112014016535A BR112014016535A8 (pt) | 2012-01-06 | 2013-01-04 | Método de localização hidráulica de uma coluna interna e aparelho de interior do poço |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/345,544 | 2012-01-06 | ||
US13/345,544 US9057251B2 (en) | 2010-10-28 | 2012-01-06 | Gravel pack inner string hydraulic locating device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2013103789A2 true WO2013103789A2 (fr) | 2013-07-11 |
WO2013103789A3 WO2013103789A3 (fr) | 2014-03-06 |
Family
ID=47631708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2013/020249 WO2013103789A2 (fr) | 2012-01-06 | 2013-01-04 | Dispositif de localisation hydraulique de train de tiges interne de massif de gravier |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2800868B1 (fr) |
BR (1) | BR112014016535A8 (fr) |
MY (1) | MY167550A (fr) |
SG (1) | SG11201403363SA (fr) |
WO (1) | WO2013103789A2 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6176307B1 (en) * | 1999-02-08 | 2001-01-23 | Union Oil Company Of California | Tubing-conveyed gravel packing tool and method |
US7373979B2 (en) * | 2003-12-18 | 2008-05-20 | Baker Hughes Incorporated | Workstring and a method for gravel packing |
US7284606B2 (en) * | 2005-04-12 | 2007-10-23 | Baker Hughes Incorporated | Downhole position locating device with fluid metering feature |
US7543641B2 (en) * | 2006-03-29 | 2009-06-09 | Schlumberger Technology Corporation | System and method for controlling wellbore pressure during gravel packing operations |
US8528641B2 (en) * | 2009-09-03 | 2013-09-10 | Baker Hughes Incorporated | Fracturing and gravel packing tool with anti-swabbing feature |
-
2013
- 2013-01-04 MY MYPI2014701837A patent/MY167550A/en unknown
- 2013-01-04 WO PCT/US2013/020249 patent/WO2013103789A2/fr active Application Filing
- 2013-01-04 SG SG11201403363SA patent/SG11201403363SA/en unknown
- 2013-01-04 EP EP13702272.9A patent/EP2800868B1/fr not_active Not-in-force
- 2013-01-04 BR BR112014016535A patent/BR112014016535A8/pt active Search and Examination
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
---|---|
SG11201403363SA (en) | 2014-10-30 |
BR112014016535A8 (pt) | 2017-07-11 |
EP2800868A2 (fr) | 2014-11-12 |
EP2800868B1 (fr) | 2018-08-22 |
MY167550A (en) | 2018-09-12 |
BR112014016535A2 (pt) | 2017-06-13 |
WO2013103789A3 (fr) | 2014-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9057251B2 (en) | Gravel pack inner string hydraulic locating device | |
US9945206B2 (en) | Stage cementing tool and method | |
CA3042542C (fr) | Appareil de fracturation en fond de puits et methode associee | |
US20130180709A1 (en) | Well Completion Apparatus, System and Method | |
US9638002B2 (en) | Activated reverse-out valve | |
US20160215581A1 (en) | Method and apparatus for well completion | |
US10781674B2 (en) | Liner conveyed compliant screen system | |
US9422786B2 (en) | Hybrid-tieback seal assembly | |
US10465461B2 (en) | Apparatus and methods setting a string at particular locations in a wellbore for performing a wellbore operation | |
US20200131880A1 (en) | Downhole packer tool engaging and opening port sleeve utilizing hydraulic force of fracturing fluid | |
US9068435B2 (en) | Gravel pack inner string adjustment device | |
US10370916B2 (en) | Apparatus and methods for locating a particular location in a wellbore for performing a wellbore operation | |
EP2800866B1 (fr) | Dispositif de réglage de train de tiges interne pour ensemble de gravillonnage | |
US20150233210A1 (en) | Reclosable sleeve assembly and methods for isolating hydrocarbon production | |
US20180187499A1 (en) | Top set liner hanger and packer with hanger slips above the packer seal | |
NO20151514A1 (en) | Dual barrier open water completion | |
EP2800868B1 (fr) | Dispositif de localisation hydraulique de train de tiges interne de massif de gravier | |
US20170335667A1 (en) | Method for well completion | |
US20160194936A1 (en) | Completion assembly with bypass for reversing valve | |
US20140262331A1 (en) | Plug and perforate using casing profiles | |
WO2020153864A1 (fr) | Systèmes et procédés de complétion en un seul passage | |
RU2575487C1 (ru) | Гидравлическое устройство размещения внутренней колонны гравийного фильтра |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13702272 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013702272 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13702272 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 2014132345 Country of ref document: RU Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112014016535 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112014016535 Country of ref document: BR Kind code of ref document: A2 Effective date: 20140703 |