Dual electric submergible pumping system installation to simultaneously move fluid with respect to two or more subterranean zones

Information

  • Patent Grant
  • 6325143
  • Patent Number
    6,325,143
  • Date Filed
    Tuesday, June 22, 1999
    25 years ago
  • Date Issued
    Tuesday, December 4, 2001
    22 years ago
Abstract
A dual submergible pumping system permits the production and/or injection of fluids from or into separate zones within a narrowly confined wellbore without commingling of fluids. The system includes at least first and second electric submergible pumping systems. Typically, the design allows the electric submergible pumping systems to be arranged generally axially within a wellbore. Each system, however, is able to produce or inject fluids along a fluid flow path that is isolated from the fluid flow path of the other electric submergible pumping system.
Description




FIELD OF THE INVENTION




The present invention relates generally to systems for raising fluids from wells, and particularly to a dual electric submergible pumping system for use in a narrowly confined wellbore to produce or move fluids with respect to at least two zones and without commingling of the fluids.




BACKGROUND OF THE INVENTION




In producing petroleum and other useful fluids from production wells, it is generally known to provide a submergible pumping system for raising the fluids collected in a well. Production fluids enter a wellbore via perforations formed in a well casing adjacent a production formation. Fluids contained in the formation collect in the wellbore and may be raised by the submergible pumping system to another zone or to a collection point above the surface of the earth. Submergible pumping systems also are used to inject fluids into the formation to contain or move a reservoir of production fluid so that it may be produced more readily from a given location.




In an exemplary electric submergible pumping system, the system includes several components, such as a submergible pump, a submergible electric motor and motor protector. The submergible electric motor typically supplies power to the submergible pump by a drive shaft, and the motor protector serves to isolate the internal motor oil from the well fluids. A deployment system, such as deployment tubing in the form of coiled tubing or production tubing, is used to deploy the submergible pumping system within a wellbore. Generally, power is supplied to the submergible electric motor or motors by one or more power cables supported along the deployment system.




Some wells have the capability of producing from two or more zones or reservoirs. However, because of constraints, such as incompatibility of fluids, differential pressures in the reservoirs, and other constraints, it sometimes is undesirable to commingle the fluids produced from separate production zones.




Production from the separate zones or reservoirs can be accomplished by running separate electric submergible pumping systems along side of one another and deployed on separate tubing strings. In some applications, however, this may be problematic due to space constraints. In other words, the wellbore must be of substantial diameter to accommodate two separate systems that are deployed along side of one another. These problems are equally applicable if one of the systems is used for injection of fluids, while the other is used for production of fluids.




It would be advantageous to have a dual electric submergible pumping system that could be deployed either on a single tubing deployment system within a narrowly confined wellbore, or on a pair of tubing deployment systems with the two or more electric submergible pumping systems arranged generally axially. Additionally, it would be advantageous to utilize separate fluid flow paths to prevent commingling of fluids pumped from or injected into separate zones.




SUMMARY OF THE INVENTION




The present invention features a system for producing fluids from two different zones within a wellbore. The system includes a first electric submergible pumping system coupled to a first intake that is disposed in a first zone. A second electric submergible pumping system is coupled to a second intake that is disposed in a second zone. A packer separates the first electric submergible pumping system from the second electric submergible pumping system. This packer is disposed within the wellbore between a first zone fluid and a second zone fluid.




According to another aspect of the invention, a system is provided for producing fluids from two different zones within a wellbore. The system includes a first electric submergible pumping system coupled to a first intake that is disposed in a first zone. The system also includes a second electric submergible pumping system coupled to a second intake disposed in a second zone. A lower packer is disposed to separate the first zone from the second zone and is disposed beneath the first and the second electric submergible pumping systems. Additionally, an upper packer is disposed between the first and the second submergible pumping systems.




According to another aspect of the present invention, a system is provided for producing fluid from two different zones within a wellbore. A first electric submergible pumping system is coupled to a first intake that is disposed in a first zone. A second electric submergible pumping system is coupled to a second intake that is disposed in a second zone. The second electric submergible pumping system is suspended from the first electric submergible pumping system. Additionally, a first packer is disposed between the first electric submergible pumping system and the second electric submergible pumping system. A second packer also is disposed between the first electric submergible pumping system and the second electric submergible pumping system to create a zone therebetween in which the first intake is deployed.




According to another aspect of the invention, a system is provided for use in a downhole, wellbore environment to manage fluid flow with respect to a plurality of zones. The system includes a first electric submergible pumping system coupled to a first intake that is disposed in a first zone. The system also includes a second electric submergible pumping system coupled to a second intake that is disposed in a second zone. A first packer is disposed between the first electric submergible pumping system and the second electric submergible pumping system. Also, a second packer is disposed to separate the second zone from a third zone. The arrangement allows the first electric submergible pumping system to produce a first zone fluid from the first zone, while the second electric submergible pumping system moves a second zone fluid from the second zone to the third zone.




According to another aspect of the present invention, a system is provided for use in a downhole, wellbore environment to simultaneously inject one fluid and to produce another fluid. The system includes first and second electric submergible pumping systems. The first electric submergible pumping system is coupled to a first intake disposed in a production zone. The second electric submergible pumping system is coupled to a second intake that may be supplied with an injection fluid. The first electric submergible pumping system is suspended from the second electric submergible pumping system. Further, a deployment tubing is coupled to the second electric submergible pumping system, and a bypass is connected between the first electric submergible pumping system and the deployment tubing. When a production fluid is produced from the production zone, the first electric submergible pumping system moves the production fluid through the bypass and up through the deployment tubing.











BRIEF DESCRIPTION OF THE DRAWINGS




The invention will hereafter be described with reference to the accompanying drawings, wherein like reference numerals denote like elements, and:





FIG. 1

is a front elevational view of a dual electric submergible pumping system positioned in a wellbore, according to a preferred embodiment of the present invention;





FIG. 2

is a front elevational view of an alternate embodiment of the system illustrated in

FIG. 1

;





FIG. 3

is a front elevational view of another alternate embodiment of the system illustrated in

FIG. 1

;





FIG. 4

is a front elevational view of another alternate embodiment of the system illustrated in

FIG. 1

; and





FIG. 5

is a front elevational view of another alternate embodiment of the system illustrated in FIG.


1


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring generally to

FIG. 1

, a dual electric submergible pumping system


10


is illustrated according to a preferred embodiment of the present invention. System


10


may comprise a variety of components depending on the particular application or environment in which it is used. However, system


10


typically includes a first electric submergible pumping (ESP) system


12


and a second electric submergible pumping (ESP) system


14


. First ESP system


12


and second ESP system


14


are deployed by a first deployment tubing


16


and second deployment tubing


18


, respectively. First deployment tubing


16


and second deployment tubing


18


may be, for example, conventional production tubing for conducting a fluid therethrough.




System


10


is designed for deployment in a well


20


within a geological formation


22


containing desirable production fluid, such as petroleum. Typically, a wellbore


24


is drilled into geological formation


22


and lined with a wellbore casing


26


. Wellbore casing


26


may include a plurality of perforations for permitting the flow of fluid from formation


22


into wellbore


24


for transfer by system


10


. For example, a first set of perforations


28


may be disposed in a first zone


30


to permit a first zone fluid to flow into wellbore


24


via perforations


28


. A second set of perforations


32


may be disposed at a second zone


34


to permit the flow of a second zone fluid into wellbore


24


via perforations


32


. In this exemplary embodiment, first zone


30


is vertically above second zone


34


along wellbore


24


.




First zone


30


and the first zone fluid is separated from second zone


34


and the second zone fluid, at least within wellbore


24


, by a packer


36


disposed between first ESP system


12


and second ESP system


14


. Thus, fluid from first zone


30


is produced by first ESP system


12


through first deployment tubing


16


. Similarly, the fluid from zone


34


is produced by second ESP system


14


through second deployment tubing


18


. Second deployment tubing


18


includes a bend


38


that permits second ESP system


14


to be disposed beneath first ESP system


12


, and most preferably in general axial alignment with first ESP system


12


. The second deployment tubing


18


extends upwardly from bend


38


along the side of first ESP system


12


. This arrangement permits the deployment of dual ESP system


10


in smaller diameter wellbores or when subjected to greater space constraints. Typically, packer


36


is disposed between bend


38


and second ESP system


14


. Packer


36


includes a central opening or aperture


40


for receiving the second deployment tubing


18


therethrough.




By way of example, first ESP system


12


includes a submergible electric motor


42


that receives power via a power cable


44


. Motor


42


is coupled to a motor protector


46


. First ESP system


12


also includes a submergible pump


48


coupled to a fluid intake


50


that may be coupled, for example, to motor protector


46


and pump


48


, as illustrated. At the upper end of pump


48


a connector


52


connects pump


48


with first deployment tubing


16


.




Similarly, second ESP system


14


includes a submergible motor


54


powered via a power cable


56


. A motor protector


58


is coupled to motor


54


. System


14


further includes a submergible pump


60


coupled to a fluid intake


62


. Intake


62


is connected between pump


60


and motor protector


58


. Additionally, a connector


64


is coupled between pump


60


and second deployment tubing


18


, as illustrated. It should be noted that the components and arrangement of components in each electric submergible pumping system


12


,


14


can be changed or adjusted according to the specific application or environment in which dual system


10


is utilized.




To operate dual electric submergible pumping system


10


, second ESP system


14


and packer


36


are initially deployed within wellbore


24


. Subsequently, first ESP system


12


is deployed above second ESP system


14


. As a first zone fluid flows through perforations


28


into wellbore


24


, the fluid is drawn into intake


50


and pumped upwardly through first deployment tubing


16


. Simultaneously, a second zone fluid flows through perforations


32


into wellbore


24


and is drawn into intake


62


and pumped upwardly through second deployment tubing


18


. Packer


36


separates first zone


30


and the first zone fluid from second zone


34


and the second zone fluid within wellbore


24


to prevent commingling of fluids.




Referring generally to

FIG. 2

, an alternate embodiment of the present invention is illustrated. In this embodiment, the dual system


10


includes a first ESP system


70


and a second ESP system


72


. Both first and second ESP systems


70


,


72


are deployed on a single deployment system


74


, e.g. production tubing.




First ESP system


70


may include a variety of components. For example, a submergible motor


76


, a motor protector


78


, a fluid intake


80


and a submergible pump


82


, as illustrated. A connector and power cable, as described above, also are typically used but have not been shown in this embodiment or the subsequent embodiments for clarity of illustration.




Second ESP system


72


, on the other hand, preferably is a bottom intake style system having a lower submergible pump


84


. In the illustrated exemplary embodiment, a motor protector


86


is coupled to pump


84


and disposed above pump


84


. A submergible motor


88


is coupled to motor protector


86


, and an expansion chamber


90


is disposed above motor


88


. Fluid is drawn into pump


84


and discharged into a shroud


92


through discharge openings


94


. The discharged fluid travels upwardly along the outside of motor protector


84


, motor


88


and expansion chamber


90


, within shroud


92


, until it is forced into deployment tubing


74


through deployment tubing inlet


96


.




Preferably, first ESP system


70


is suspended from second ESP system


72


by a Y-tool


98


. Specifically, Y-tool


98


includes a primary branch


100


that extends to first ESP system


70


. Additionally, Y-tool


98


has a secondary branch


102


coupled to downwardly extending tubing


104


which extends to an intake


106


for second ESP system


72


. In operation, a first zone fluid from a first zone


108


enters wellbore


24


via appropriate perforations


110


formed through wellbore casing


26


. This first zone fluid is drawn into intake


80


of first ESP system


70


and pumped upwardly through the interior of primary branch


100


of Y-tool


98


. A plug


112


prevents the first zone fluid from reaching second ESP system


72


. Rather, the first zone fluid is dispelled through an outlet


114


formed through the wall of primary branch


100


beneath plug


112


. This fluid is moved upwardly through wellbore


24


along the annulus formed within wellbore casing


26


and around second ESP system


72


and deployment system


74


.




Simultaneously, a second zone fluid flows from a second zone


116


into wellbore


24


through appropriate perforations


118


formed in wellbore casing


26


. This second zone fluid is drawn into intake


106


by second ESP system pump


84


via tubing


104


and secondary branch


102


of Y-tool


98


. This second zone fluid is routed along second ESP system


72


and forced upwardly through the interior of deployment tubing


74


.




First zone


108


and the first zone fluid are separated from second zone


116


and the second zone fluid, within wellbore


24


, by a lower packer


120


. Preferably, lower packer


120


is disposed beneath both first and second ESP systems


70


,


72


and includes an opening or aperture


122


through which tubing


104


extends. Thus, intake


106


is positioned within the second zone


116


to draw second zone fluids.




Additionally, an upper packer


124


preferably is disposed between first ESP system


70


and second ESP system


72


to separate first zone


108


from the annulus through which first zone fluid is produced. Preferably, upper packer


124


includes a pair of openings


126


through which both primary branch


100


and tubing


104


extend, as illustrated. In this arrangement, dual system


10


may be deployed within wellbore


24


in a single operation, because first ESP system


70


and second ESP system


72


are integrally connected.




Referring generally to

FIG. 3

, another alternate embodiment of system


10


is illustrated. In this exemplary embodiment, many of the components referenced are the same as the components referenced in FIG.


2


and are provided with the same reference numerals. In this latter embodiment, however, upper ESP system


72


draws first zone fluid from first zone


108


. Lower ESP system


70


, on the other hand, draws second zone fluid from second zone


116


.




Lower ESP system


70


is suspended from upper ESP system


72


by a tubing


130


. Tubing


130


preferably is a generally straight tube that holds lower ESP system


70


in general axial alignment with upper ESP system


72


. Additionally, tubing


130


includes one or more perforations


132


disposed to draw first zone fluids into pump


84


of the bottom intake style upper ESP system


72


. Additionally, a plug


134


is disposed in tubing


130


beneath the one or more perforations


132


. In an exemplary embodiment, tubing


130


is the primary branch of a Y-tool


136


connected to lower ESP system


70


. A secondary branch


138


of Y-tool


136


is coupled to a section of tubing


140


that extends upwardly towards an annulus


142


formed between wellbore casing


26


and deployment system


74


. Lower ESP system


70


draws second zone fluid from second zone


116


into intake


80


and pumps the fluid upwardly through secondary branch


138


of Y-tool


136


and on through tubing section


140


to annulus


142


.




First zone


108


and the first zone fluid are separated from second zone


116


and the second zone fluid by a lower packer


144


. Lower packer


144


preferably includes a pair of openings


146


through which tubing sections


130


and


140


extend. Lower packer


144


is disposed beneath the one or more perforations


132


. Additionally, an upper packer


148


is disposed in wellbore


24


above one or more perforations


132


. Packer


148


separates first zone


108


and first zone fluid from the second zone fluid pumped into annulus


142


. Upper packer


148


also includes a pair of openings


150


through which tubing sections


130


and


140


extend, as illustrated.




Upper packer


148


is disposed above the one or more perforations


132


to create a contained area


152


at which first zone fluids are drawn into the one or more perforations


132


. As illustrated, lower packer


144


and upper packer


148


preferably are disposed between lower ESP system


70


and upper ESP system


72


.




Referring generally to

FIG. 4

, another alternate embodiment of dual system


10


is illustrated. The exemplary system is utilized in a downhole, wellbore environment for the management of fluid flow from or to a plurality of zones. In the embodiment illustrated, an upper ESP system


160


is coupled to a fluid intake


162


. Upper ESP system


160


preferably is a standard ESP including a lower, submergible motor


164


, a motor protector


166


, pump intake


162


and a submergible pump


168


. The upper ESP system


160


is deployed on an appropriate deployment tubing


170


, such as production tubing.




Dual system


10


also includes a lower ESP system


172


. Lower ESP system


172


preferably is suspended from upper ESP system


160


by, for instance, a section of tubing


174


, such that lower ESP system


172


is generally axially aligned with upper ESP system


160


.




In the illustrated embodiment, lower ESP system


172


is a bottom discharge system including an upper expansion chamber


176


, a motor


178


, a motor protector


180


and a pump


182


. Lower ESP


172


is coupled with a liquid intake


184


which, in the illustrated embodiment, is coupled between motor protector


180


and pump


182


.




A discharge tube


186


is coupled to pump


182


and extends downwardly therefrom. A lower packer


188


is disposed beneath lower ESP system


172


and includes an opening


190


for receiving discharge tube


186


. An upper packer


192


is disposed between upper ESP system


160


and lower ESP system


172


. Upper packer


192


includes an opening


194


through which tubing section


174


extends. Thus, lower packer


188


and upper packer


192


create three separate zones, at least within wellbore


24


. Wellbore casing


26


includes an upper area of perforations


196


disposed proximate a first zone


198


to permit first zone fluids to flow into wellbore


24


above upper packer


192


. Additionally, a second set of perforations


200


are disposed through wellbore casing


26


intermediate upper packer


192


and lower packer


188


. This permits the flow of second zone fluid from a second zone


202


into wellbore


24


intermediate upper packer


192


and lower packer


188


. Additionally, wellbore casing


126


includes a third set of perforations


204


formed beneath lower packer


188


. Perforations


204


permit the injection of fluids into a third zone


206


, commonly referred to as an injection zone.




In operation, first zone fluid is drawn through perforations


196


at first zone


198


and into intake


162


. This production fluid is pumped upwardly through deployment tubing


170


to an appropriate collection site. Simultaneously, a second zone fluid is drawn through perforations


202


and into intake


184


of lower ESP system


172


. This second zone fluid is discharged through discharge tube


186


into wellbore


24


beneath lower packer


188


. As this second zone fluid is continually discharged, it is forced through perforations


204


at injection zone


206


. Thus, the two ESP systems can simultaneously produce and inject appropriate fluids.




Another embodiment of a system


10


able to produce fluid and inject fluid simultaneously is illustrated in FIG.


5


. In this embodiment, a fluid is produced from a lower zone


210


, referred to as a production zone. At zone


210


, a production fluid flows through a set of perforations


212


formed through wellbore casing


26


. The fluid flows into wellbore


24


and is produced upwardly by a lower ESP system


214


. Lower ESP system


214


is coupled to a fluid intake


216


which draws in the production fluid at lower zone


210


.




Preferably, lower ESP system


214


is a standard ESP system including, for instance, a lower motor


218


, a motor protector


220


and a submergible pump


222


. Potentially, a wide range of additional or other components can be utilized in lower ESP system


214


. Preferably, intake


216


is coupled between motor protector


220


and submergible pump


222


in the exemplary embodiment.




In the embodiment illustrated, another zone


224


, such as an injection zone, is disposed above lower zone


210


. At zone


224


, a set of perforations


226


are formed through wellbore casing


26


. Perforations


226


permit an upper ESP system


228


to pump fluid from another zone or area and inject that fluid outwardly through perforations


226


into formation


22


at zone


224


. Upper ESP system


228


preferably is a bottom discharge type system coupled to a fluid intake


230


.




As described above with reference to

FIG. 4

, an exemplary bottom discharge system may include a submergible pump


232


, a motor protector


234


, a submergible motor


236


and an expansion chamber


238


. In this embodiment, intake


230


preferably is coupled between the lower pump


232


and motor protector


234


. As with each of the embodiments described above, a variety of additional or other components may also be utilized in the ESP system, e.g. upper ESP system


228


, depending on the specific application and/or environment.




Upper ESP system


228


is suspended by a deployment system


240


, such as deployment tubing. Lower ESP system


214


is suspended from upper ESP system


228


by, for instance, a section of tubing


242


that suspends lower ESP system


214


in general axial alignment with upper ESP system


228


.




Section of tubing


242


includes an outlet


244


that permits the outflow of fluid pumped downwardly from upper ESP system


228


. Additionally, a plug


246


is disposed in section of tubing


242


beneath outlet


244


. Thus, as upper ESP system


228


pumps fluid downwardly through tubing


242


, plug


246


forces the fluid to exit into wellbore


24


through outlet


244


. This fluid is ultimately forced out of wellbore


24


through perforations


226


at injection zone


224


.




A bypass


248


is coupled between lower ESP system


214


and, preferably, deployment system


240


. As illustrated, bypass


248


may comprise a tube coupled with section of tubing


242


beneath plug


246


. Thus, fluid pumped by lower ESP system


214


is forced into section of tubing


242


and blocked from further upward movement by plug


246


. The fluid is then forced through bypass


248


and moves upwardly past upper ESP system


228


until it moves into deployment tubing


240


. As with any of the systems described herein, deployment tubing


240


directs the produced fluid to another location, such as a collection point at the surface of the earth.




A lower packer


250


and an upper packer


252


are disposed between lower ESP system


214


and upper ESP system


228


. Preferably, lower packer


250


is disposed beneath perforations


226


and upper packer is disposed above perforations


226


. Thus, as fluid is pumped outwardly through outlet


244


, lower packer


250


and upper packer


252


define a constrained region within wellbore


24


. This region ensures that the fluid moves out through perforations


226


at injection zone


224


without commingling with the fluid produced from lower zone


210


.




It should be noted that lower packer


250


preferably has a pair of openings


254


through which section of tubing


242


and bypass


248


extend. Similarly, upper packer


252


includes a pair of openings


256


through which section of tubing


242


and bypass


248


extend.




In operation, lower ESP system


214


draws a fluid from zone


210


into intake


216


. This fluid is pumped upwardly into the lower of portion of tubing


242


and around upper ESP system


228


via bypass


248


. The produced fluid is then directed into deployment tubing


240


which routes the fluid to a desired location, such as a collection point at the surface of the earth. Simultaneously, upper ESP system


228


draws fluid from a location in wellbore


24


above upper packer


252


. This fluid is drawn through intake


230


and directed downwardly through section of tubing


242


. Plug


246


ensures that the fluid is forced outwardly through outlet


244


between lower packer


250


and upper packer


252


. This fluid is further forced through perforations


226


at zone


224


as it is injected into formation


22


. Thus, the dual system


10


can simultaneously produce fluid from one zone while injecting fluid into another zone, such as injection zone


224


disposed above the lower production zone


210


.




The fluid for injection is supplied from another zone or area. For example, depending on formation


22


, the fluid could be supplied from an upper zone in formation


22


. Preferably, however, the fluid is supplied from the surface of the earth and directed downwardly through wellbore


24


in the annulus formed around deployment tubing/system


240


.




It will be understood, however, that the foregoing description is of preferred embodiments of this invention, and that the invention is not limited to the specific forms shown. For example, a variety of additional submergible pumping system components can be incorporated into the designs; a variety of different packers may be utilized; various control lines may be directed to the electric submergible pumping systems, such as fluid control lines, optical fibers and conductive control lines; different diameters and sizes of the tubing and other components can be selected as required or desired for a specific application; and preferably the dual ESP systems are axially aligned above one another, but this can vary somewhat depending on wellbore size, component diameters, or application. Additionally, the terms “first” and “second” as well as “upper” and “lower” are designed for aiding in the description of the overall system, and should not be construed as requiring a specific orientation or arrangement of components. These and other modifications may be made in the design and arrangement of the elements without departing from the scope of the invention as expressed in the appended claims.



Claims
  • 1. A system for producing fluids from different zones within a wellbore, comprising:a first electric submergible pumping system coupled to a first intake that is disposed in a first zone for receiving a first zone fluid; a second electric submergible pumping system coupled to a second intake disposed in a second zone for receiving a second zone fluid; a lower packer disposed to separate the first zone fluid from the second zone fluid, wherein the lower packer is disposed beneath the first and the second electric submergible pumping systems; and an upper packer disposed between the first and the second submergible pumping systems.
  • 2. The system as recited in claim 1, wherein the first electric submergible pumping system is suspended from the second electric submergible pumping system by a Y-tool.
  • 3. The system as recited in claim 2, wherein the second electric submergible pumping system is a bottom intake electric submergible pumping system.
  • 4. The system as recited in claim 3, wherein the second intake is disposed beneath the lower packer.
  • 5. The system as recited in claim 4, further comprising a deployment tubing through which a fluid is produced by the second electric submergible pumping system.
  • 6. The system as recited in claims 5, wherein the first electric submergible pumping system is disposed to produce a production fluid through an annulus formed around the production tubing.
  • 7. A system for producing fluids from different zones within a wellbore, comprising:a first electric submergible pumping system coupled to a first intake that is disposed in a first zone; a second electric submergible pumping system coupled to a second intake that is disposed in a second zone, the second electric submergible pumping system being suspended from the first electric submergible pumping system; a first packer disposed between the first electric submergible pumping system and the second electric submergible pumping system; and a second packer disposed between the first electric submergible pumping system and the second electric submergible pumping system, wherein the first intake is disposed between the first packer and the second packer.
  • 8. The system as recited in claim 7, wherein the first electric submergible pumping system is a bottom intake electric submergible pumping system.
  • 9. The system as recited in claim 8, wherein the first electric submergible pumping system includes a shroud.
  • 10. The system as recited in claim 8, further comprising a deployment tubing through which a first zone fluid is produced by the first electric submergible pumping system.
  • 11. The system as recited in claim 7, wherein the second electric submergible pumping system is suspended by a Y-tool disposed beneath the first and second packers.
  • 12. The system as recited in claim 11, wherein the Y-tool includes a primary branch and a secondary branch, the primary branch being plugged and the secondary branch being coupled to a conduit extending through the first and second packers.
  • 13. The system as recited in claim 12, wherein a second zone fluid is produced by the second electric submergible pumping system through an annulus formed within the wellbore around the deployment tubing.
  • 14. The system as recited in claim 7, wherein the first electric submergible pumping system and the second electric submergible pumping system are generally axially aligned.
  • 15. A system for use in a downhole, wellbore environment to manage fluid with respect to a plurality of zones, comprising:a first electric submergible pumping system coupled to a first intake that is disposed in a first zone for receiving a first zone fluid; a second electric submergible pumping system coupled to a second intake that is disposed in a second zone for receiving a second zone fluid; a first packer disposed between the first electric submergible pumping system and the second electric submergible pumping system to separate the first zone fluid from the second zone fluid; and a second packer disposed to separate the second zone from a third zone, wherein the first electric submergible pumping system produces the first zone fluid from the first zone and the second electric submergible pumping system moves the second zone fluid from the second zone to the third zone.
  • 16. The system as recited in claim 15, wherein the first electric submergible pumping system is suspended from a deployment tubing through which the first zone fluid is produced.
  • 17. The system as recited in claim 16, wherein the third zone is disposed beneath the second zone in a wellbore.
  • 18. The system as recited in claim 17, wherein a fluid conduit extends from the second electric submergible pumping system through the second packer to conduct second zone fluid from the second zone to the third zone.
  • 19. The system as recited in claim 18, wherein the first electric submergible pumping system is generally axially aligned with the second electric submergible pumping system.
  • 20. A system for use in a downhole, wellbore environment to simultaneously inject one fluid and produce another fluid, comprising:a first electric submergible pumping system coupled to a first intake disposed in a production zone; a second electric submergible pumping system coupled to a second intake disposed to receive an injection fluid, the first electric submergible pumping system being suspended from the second electric submergible pumping system; a deployment tubing coupled to the second electric submergible pumping system; and a bypass coupled between the first electric submergible pumping system and the deployment tubing, wherein a production fluid is produced through the bypass and the deployment tubing from the production zone.
  • 21. The system as recited in claim 20, further comprising a first packer and a second packer disposed between the first electric submergible pumping system and the second submergible pumping system to create an injection zone therebetween.
  • 22. The system as recited in claim 21, further comprising an outlet coupled to the second electric submergible pumping system and disposed in the injection zone.
  • 23. The system as recited in claim 22, wherein the second intake is disposed to draw an injection fluid from an annulus formed in the wellbore around the second electric submergible pumping system.
  • 24. The system as recited in claim 21, wherein the bypass extends through the first packer and the second packer.
RELATED APPLICATIONS

This document is a continuation-in-part of patent application Ser. No. 09/225,045, filed Jan. 4, 1999 and entitled Dual Electric Submergible Pumping Systems For Producing Fluids From Separate Reservoirs.

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Continuation in Parts (1)
Number Date Country
Parent 09/225045 Jan 1999 US
Child 09/338199 US