US20170275969A1 - Treatment Ported Sub and Method of Use - Google Patents
Treatment Ported Sub and Method of Use Download PDFInfo
- Publication number
- US20170275969A1 US20170275969A1 US15/080,152 US201615080152A US2017275969A1 US 20170275969 A1 US20170275969 A1 US 20170275969A1 US 201615080152 A US201615080152 A US 201615080152A US 2017275969 A1 US2017275969 A1 US 2017275969A1
- Authority
- US
- United States
- Prior art keywords
- sleeve
- assembly
- seat
- ports
- wall ports
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 11
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003628 erosive effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 2
- 238000005086 pumping Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 6
- 230000000717 retained effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- 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
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
-
- E21B2034/007—
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Definitions
- the field of the invention is ported subs and more particularly subs that can be actuated to open ports without intervention and releasably retain a cover sleeve with the ports open while further allowing opening of a passage therethrough without intervention.
- valves typically for a multi-zone completion the casing has an array of valves for access to each zone. These valves are typically run in closed so that tubing pressure can be built up to set tools such as external packers.
- the valves have been single purpose in the past so that for treatment a sliding sleeve valve is shifted to open an unobstructed port through which treatment of the formation can take place.
- One such treatment is fracturing but others such as acidizing or stimulation can also take place through the unobstructed port.
- the treatment valve is closed and a production valve that has a screened opening is moved to an open position.
- these two valves are integrated into a single sliding sleeve that is shifted with a shifting tool or some other well intervention tool into the treatment and then the production positions.
- the screened opening helps to retain solids produced from the formation from entering the production string.
- a housing 10 has a frac sleeve 12 that selectively uncovers ports 14 for fracturing after a ball 16 is dropped on a seat 18 to shift sleeve 12 to the position shown. Frac fluid with proppants is then delivered through ports 14 into the formation to enhance subsequent production. Thereafter, another ball 20 is landed on seat 22 to shift sleeve 24 to cover ports 14 and at the same time expose ports 26 for subsequent production or injection of clear fluids.
- FIG. 1 design is simplified so that in a given increment of a zone to be treated a sleeve can be shifted without intervention to open a set of ports whose size and number are configured to meet local well conditions.
- the shifted position can be releasably maintained to hold the ports open.
- the movement preferably occurs with a seated ball that is part of the sleeve assembly.
- the ball can disintegrate or be blown through the seat as a result of sleeve shifting or with exposure to heat or fluids already in the borehole or added to the borehole.
- a shifting tool can later be used to return the sleeve to the position where the ports are again covered.
- a ported sub integrates a seat for an object to land on to allow pressure buildup.
- a sleeve shifts with the ball and the seat to open ports that are screened.
- the openings feature hardened inserts to control wear from high velocity fluid.
- the interval is treated through such openings with treatment fluid that is relatively free of solids.
- the formation is produced through the same screened inserts that were used for treating.
- the sleeve can be releasably retained in the ports open position and can optionally be closed with well intervention such as with a shifting tool.
- the object can pass through the seat after sleeve shifting by disintegration or by using a segmented seat that opens enough to allow the object to pass.
- An array can be spaced throughout the zone for treating or fracturing and the sleeves shifted bottom up using different or same sized balls.
- FIG. 1 is a section view of a two sleeve ported sub for fracturing with proppant and then treating;
- FIG. 2 is a section view of a single sleeve ported sub for opening treatment ports with screened inserts into a formation.
- a housing 30 has a passage 32 therethrough.
- a sleeve 34 initially covers ports 36 and is pinned to housing 30 with one or more breakable members or shear pins 38 .
- a ball 40 is dropped or pumped to seat 42 so that pressure can build to break the shear pin(s) 38 to allow a snap ring or other detent 44 to align with groove 46 to releasably hold the sleeve 34 in the shifted position with ports 36 open.
- a profile 48 is located adjacent an upper end of the sleeve 34 to allow a shifting tool that is not shown to grab the sleeve 34 when in its shifted position and return the sleeve 34 to the FIG. 2 initial position where the ports 36 are closed.
- a zone to be fractured or treated there will be an array of devices as shown in FIG. 2 that can be sequentially operated.
- the order of operation will be bottom up using balls 40 of progressively increasing diameter.
- the balls 40 can all be the same size if movement of sleeve 34 undermines seat 42 which can be made of segments so that the segments can move radially outwardly to let the ball 40 pass.
- each of the balls can be configured to disintegrate with exposure to existing well fluids, added fluids or well thermal conditions.
- the balls can be made of a controlled electrolytic material (CEM) that can disintegrate under one of the above-mentioned conditions in the borehole. While a bottom up order of shifting sleeves 34 in the array of modules shown in FIG. 2 in a zone of interest other orders are contemplated.
- CEM controlled electrolytic material
- the number, size and locations of the openings 36 can be different or the same depending on the adjacent borehole or formation conditions.
- the openings 36 preferably feature hardened or carbide inserts to protect the openings against the erosive force of high velocity fluids.
- the inserts also feature a screen so that subsequent to the treatment or fracturing therethrough, the production flow that ensues can be screened.
- the array of openings 36 functions equivalently to a screen.
- the number and size of the openings 36 in each of the housings 30 in an interval can be different for the purpose of balancing production flow from the formation.
- FIG. 2 can eliminate the frac sleeve 12 of FIG. 1 because the use of treatment or frac fluid that has substantially no solids eliminates the need for large unscreened ports 14 typically used for frac fluid laden with proppants.
- the seats 42 can also be made of a disintegrating material so that the drift diameter of the sleeve 34 is regained after shifting to allow for passage of tools therethrough for other treatment or drilling operations further downhole. If none of the sleeves 34 need to be closed after they are shifted then the process of opening all the ports 36 can be accomplished without intervention of well tools in the borehole.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Crushing And Grinding (AREA)
- Multiple-Way Valves (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
- The field of the invention is ported subs and more particularly subs that can be actuated to open ports without intervention and releasably retain a cover sleeve with the ports open while further allowing opening of a passage therethrough without intervention.
- Typically for a multi-zone completion the casing has an array of valves for access to each zone. These valves are typically run in closed so that tubing pressure can be built up to set tools such as external packers. The valves have been single purpose in the past so that for treatment a sliding sleeve valve is shifted to open an unobstructed port through which treatment of the formation can take place. One such treatment is fracturing but others such as acidizing or stimulation can also take place through the unobstructed port. When the treatment is completed the treatment valve is closed and a production valve that has a screened opening is moved to an open position. Sometimes these two valves are integrated into a single sliding sleeve that is shifted with a shifting tool or some other well intervention tool into the treatment and then the production positions. The screened opening helps to retain solids produced from the formation from entering the production string.
- The following references present a good background of the current state of the art: U.S. Pat. No. 8,342,245; U.S. Pat. No. 8,127,847; US2008/0296019; US 2009/0071655; US2009/0044944; U.S. Pat. No. 8,291,982 and US2009/0056934. These designs either require well intervention or contemplate sleeve movement to open a single port. In a filing on Sep. 3, 2015, a multi-sleeve design was described in U.S. Ser. No. 14/844,897. This design is shown in
FIG. 1 . Ahousing 10 has afrac sleeve 12 that selectively uncoversports 14 for fracturing after aball 16 is dropped on aseat 18 to shiftsleeve 12 to the position shown. Frac fluid with proppants is then delivered throughports 14 into the formation to enhance subsequent production. Thereafter, anotherball 20 is landed onseat 22 to shiftsleeve 24 to coverports 14 and at the same time exposeports 26 for subsequent production or injection of clear fluids. - In situations where the treatment is to be with fluids without solids content the
FIG. 1 design is simplified so that in a given increment of a zone to be treated a sleeve can be shifted without intervention to open a set of ports whose size and number are configured to meet local well conditions. The shifted position can be releasably maintained to hold the ports open. The movement preferably occurs with a seated ball that is part of the sleeve assembly. The ball can disintegrate or be blown through the seat as a result of sleeve shifting or with exposure to heat or fluids already in the borehole or added to the borehole. A shifting tool can later be used to return the sleeve to the position where the ports are again covered. These and other aspects of the present invention will become more apparent to those skilled in the art from a review of the description of the preferred embodiment and the associated drawing while appreciating that the full scope of the invention is to be determined from the appended claims. - A ported sub integrates a seat for an object to land on to allow pressure buildup. A sleeve shifts with the ball and the seat to open ports that are screened. The openings feature hardened inserts to control wear from high velocity fluid. The interval is treated through such openings with treatment fluid that is relatively free of solids. The formation is produced through the same screened inserts that were used for treating. The sleeve can be releasably retained in the ports open position and can optionally be closed with well intervention such as with a shifting tool. The object can pass through the seat after sleeve shifting by disintegration or by using a segmented seat that opens enough to allow the object to pass. An array can be spaced throughout the zone for treating or fracturing and the sleeves shifted bottom up using different or same sized balls.
-
FIG. 1 is a section view of a two sleeve ported sub for fracturing with proppant and then treating; -
FIG. 2 is a section view of a single sleeve ported sub for opening treatment ports with screened inserts into a formation. - Referring to
FIG. 2 , ahousing 30 has apassage 32 therethrough. Asleeve 34 initially coversports 36 and is pinned to housing 30 with one or more breakable members orshear pins 38. Aball 40 is dropped or pumped toseat 42 so that pressure can build to break the shear pin(s) 38 to allow a snap ring orother detent 44 to align withgroove 46 to releasably hold thesleeve 34 in the shifted position withports 36 open. Aprofile 48 is located adjacent an upper end of thesleeve 34 to allow a shifting tool that is not shown to grab thesleeve 34 when in its shifted position and return thesleeve 34 to theFIG. 2 initial position where theports 36 are closed. This may need to be done if some parts of a zone are to either be treated or produced at a later time. Those skilled in the art will realize that in a zone to be fractured or treated there will be an array of devices as shown inFIG. 2 that can be sequentially operated. Preferably the order of operation will be bottom up usingballs 40 of progressively increasing diameter. Alternatively theballs 40 can all be the same size if movement ofsleeve 34 underminesseat 42 which can be made of segments so that the segments can move radially outwardly to let theball 40 pass. Alternatively each of the balls can be configured to disintegrate with exposure to existing well fluids, added fluids or well thermal conditions. The balls can be made of a controlled electrolytic material (CEM) that can disintegrate under one of the above-mentioned conditions in the borehole. While a bottom up order of shiftingsleeves 34 in the array of modules shown inFIG. 2 in a zone of interest other orders are contemplated. - At each module, one of which is shown in
FIG. 2 , the number, size and locations of theopenings 36 can be different or the same depending on the adjacent borehole or formation conditions. Theopenings 36 preferably feature hardened or carbide inserts to protect the openings against the erosive force of high velocity fluids. The inserts also feature a screen so that subsequent to the treatment or fracturing therethrough, the production flow that ensues can be screened. In essence the array ofopenings 36 functions equivalently to a screen. The number and size of theopenings 36 in each of thehousings 30 in an interval can be different for the purpose of balancing production flow from the formation. Because theopenings 36 are screened the fluid pumped through them is necessarily free of suspended solids that would otherwise clog the screens in theopenings 36. The configuration ofFIG. 2 can eliminate thefrac sleeve 12 ofFIG. 1 because the use of treatment or frac fluid that has substantially no solids eliminates the need for largeunscreened ports 14 typically used for frac fluid laden with proppants. - The
seats 42 can also be made of a disintegrating material so that the drift diameter of thesleeve 34 is regained after shifting to allow for passage of tools therethrough for other treatment or drilling operations further downhole. If none of thesleeves 34 need to be closed after they are shifted then the process of opening all theports 36 can be accomplished without intervention of well tools in the borehole. - The above description is illustrative of the preferred embodiment and many modifications may be made by those skilled in the art without departing from the invention whose scope is to be determined from the literal and equivalent scope of the claims below:
Claims (20)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/080,152 US20170275969A1 (en) | 2016-03-24 | 2016-03-24 | Treatment Ported Sub and Method of Use |
BR112018068295A BR112018068295A2 (en) | 2016-03-24 | 2017-03-23 | orifice sub for treatment and method of use |
PCT/US2017/023868 WO2017165682A1 (en) | 2016-03-24 | 2017-03-23 | Treatment ported sub and method of use |
AU2017237079A AU2017237079A1 (en) | 2016-03-24 | 2017-03-23 | Treatment ported sub and method of use |
GB1817198.3A GB2565457A (en) | 2016-03-24 | 2017-03-23 | Treatment ported sub and method of use |
NO20181294A NO20181294A1 (en) | 2016-03-24 | 2018-10-08 | Treatment ported sub and method of use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/080,152 US20170275969A1 (en) | 2016-03-24 | 2016-03-24 | Treatment Ported Sub and Method of Use |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170275969A1 true US20170275969A1 (en) | 2017-09-28 |
Family
ID=59897821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/080,152 Abandoned US20170275969A1 (en) | 2016-03-24 | 2016-03-24 | Treatment Ported Sub and Method of Use |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170275969A1 (en) |
AU (1) | AU2017237079A1 (en) |
BR (1) | BR112018068295A2 (en) |
GB (1) | GB2565457A (en) |
NO (1) | NO20181294A1 (en) |
WO (1) | WO2017165682A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180347330A1 (en) * | 2015-09-04 | 2018-12-06 | National Oilwell Varco, L.P. | Apparatus, systems and methods for multi-stage stimulation |
US20190242215A1 (en) * | 2018-02-02 | 2019-08-08 | Baker Hughes, A Ge Company, Llc | Wellbore treatment system |
CN115110941A (en) * | 2022-06-23 | 2022-09-27 | 大庆宏测技术服务有限公司 | Sand blower for multi-layer fracturing |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581819A (en) * | 1970-03-26 | 1971-06-01 | Jack W Tamplen | Pressure equalizing apparatus |
US6152229A (en) * | 1998-08-24 | 2000-11-28 | Abb Vetco Gray Inc. | Subsea dual in-line ball valves |
US20120181032A1 (en) * | 2011-01-14 | 2012-07-19 | Utex Industries, Inc. | Disintegrating ball for sealing frac plug seat |
US20130014953A1 (en) * | 2011-07-12 | 2013-01-17 | Weatherford/Lamb, Inc. | Multi-Zone Screened Frac System |
US20130048298A1 (en) * | 2011-08-23 | 2013-02-28 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US20130062063A1 (en) * | 2011-09-13 | 2013-03-14 | Schlumberger Technology Corporation | Completing a multi-stage well |
US20140041876A1 (en) * | 2010-10-06 | 2014-02-13 | Colorado School Of Mines | Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore |
US20150027726A1 (en) * | 2012-03-07 | 2015-01-29 | Darcy Technologies Limited | Downhole apparatus |
US20170211359A1 (en) * | 2016-01-21 | 2017-07-27 | Baker Hughes Incorporated | Well screens and methods to reduce screen plugging |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090084553A1 (en) * | 2004-12-14 | 2009-04-02 | Schlumberger Technology Corporation | Sliding sleeve valve assembly with sand screen |
US8695710B2 (en) * | 2011-02-10 | 2014-04-15 | Halliburton Energy Services, Inc. | Method for individually servicing a plurality of zones of a subterranean formation |
AU2011305004A1 (en) * | 2010-09-22 | 2013-04-04 | Packers Plus Energy Services Inc. | Wellbore frac tool with inflow control |
US9410411B2 (en) * | 2013-03-13 | 2016-08-09 | Baker Hughes Incorporated | Method for inducing and further propagating formation fractures |
-
2016
- 2016-03-24 US US15/080,152 patent/US20170275969A1/en not_active Abandoned
-
2017
- 2017-03-23 AU AU2017237079A patent/AU2017237079A1/en not_active Abandoned
- 2017-03-23 WO PCT/US2017/023868 patent/WO2017165682A1/en active Application Filing
- 2017-03-23 GB GB1817198.3A patent/GB2565457A/en not_active Withdrawn
- 2017-03-23 BR BR112018068295A patent/BR112018068295A2/en not_active IP Right Cessation
-
2018
- 2018-10-08 NO NO20181294A patent/NO20181294A1/en not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581819A (en) * | 1970-03-26 | 1971-06-01 | Jack W Tamplen | Pressure equalizing apparatus |
US6152229A (en) * | 1998-08-24 | 2000-11-28 | Abb Vetco Gray Inc. | Subsea dual in-line ball valves |
US20140041876A1 (en) * | 2010-10-06 | 2014-02-13 | Colorado School Of Mines | Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore |
US20120181032A1 (en) * | 2011-01-14 | 2012-07-19 | Utex Industries, Inc. | Disintegrating ball for sealing frac plug seat |
US20130014953A1 (en) * | 2011-07-12 | 2013-01-17 | Weatherford/Lamb, Inc. | Multi-Zone Screened Frac System |
US20130048298A1 (en) * | 2011-08-23 | 2013-02-28 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US20130062063A1 (en) * | 2011-09-13 | 2013-03-14 | Schlumberger Technology Corporation | Completing a multi-stage well |
US20150027726A1 (en) * | 2012-03-07 | 2015-01-29 | Darcy Technologies Limited | Downhole apparatus |
US20170211359A1 (en) * | 2016-01-21 | 2017-07-27 | Baker Hughes Incorporated | Well screens and methods to reduce screen plugging |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180347330A1 (en) * | 2015-09-04 | 2018-12-06 | National Oilwell Varco, L.P. | Apparatus, systems and methods for multi-stage stimulation |
US10669830B2 (en) * | 2015-09-04 | 2020-06-02 | National Oilwell Varco, L.P. | Apparatus, systems and methods for multi-stage stimulation |
US20190242215A1 (en) * | 2018-02-02 | 2019-08-08 | Baker Hughes, A Ge Company, Llc | Wellbore treatment system |
CN115110941A (en) * | 2022-06-23 | 2022-09-27 | 大庆宏测技术服务有限公司 | Sand blower for multi-layer fracturing |
Also Published As
Publication number | Publication date |
---|---|
WO2017165682A1 (en) | 2017-09-28 |
AU2017237079A1 (en) | 2018-10-18 |
BR112018068295A2 (en) | 2019-01-15 |
GB201817198D0 (en) | 2018-12-05 |
NO20181294A1 (en) | 2018-10-08 |
GB2565457A (en) | 2019-02-13 |
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