EP0464340A2 - Appareil et procédé pour insérer une pompe dans un conduit - Google Patents

Appareil et procédé pour insérer une pompe dans un conduit Download PDF

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Publication number
EP0464340A2
EP0464340A2 EP91107456A EP91107456A EP0464340A2 EP 0464340 A2 EP0464340 A2 EP 0464340A2 EP 91107456 A EP91107456 A EP 91107456A EP 91107456 A EP91107456 A EP 91107456A EP 0464340 A2 EP0464340 A2 EP 0464340A2
Authority
EP
European Patent Office
Prior art keywords
pump
packer
fluid
conduit
pump assembly
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Withdrawn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
EP91107456A
Other languages
German (de)
English (en)
Other versions
EP0464340A3 (en
Inventor
David Lewis Abney
Eddie Eugene Smart
Toby Sidney Pugh
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of EP0464340A2 publication Critical patent/EP0464340A2/fr
Publication of EP0464340A3 publication Critical patent/EP0464340A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space

Definitions

  • the invention relates to increasing the flow rate of fluid in a conduit and, more particularly, to a pump assembly that is easily inserted into and secured within an oil well pipe string for increasing recovery of oil from the well.
  • Oil and other petroleum products are generally found in mineral formations located beneath the surface of the earth. Recovering oil from such deposits requires that a well be drilled of often great length to gain access to the formation. Once the well is drilled, a casing of concrete or other suitable material is formed around the interior walls of the well to strengthen the well and avoid erosion or crumbling of the well walls. Oil in the formation is then recovered through a pipe string inserted into the formation through the well casing.
  • oil within the formation is initially under sufficient pressure to cause the oil to flow up the pipe string to the surface without any assistance.
  • pressure within the formation is often reduced to an extent that the flow rate of oil through the pipe string is concomitantly reduced to an unacceptably low level or even discontinues.
  • the present invention is an apparatus and method for inserting and securing a pump assembly within an existing pipe string, without the need for a bottomhole assembly or any auxiliary support structure for the pump within the string.
  • the pump assembly includes a pump to which is secured a sealing assembly.
  • the seals of the sealing assembly are adjustable from a retracted position, allowing insertion of the pump assembly into the pipe string, and an expanded position, in which the sealing assembly secures the pump within the pipe string and seals the string against the flow of fluid around the pump.
  • the sealing assembly includes a pair of packers secured to the upper and lower ends of the pump.
  • the upper packer of the pump assembly is set by wireline tool, once the pump assembly is located in a desired position within the pipe string.
  • the lower packer is then set hydraulically to fully secure and seal the pump assembly within the pipe string.
  • both the upper and lower packer are set by wireline.
  • the lower packer is first set at a desired position within the pipe string.
  • An assembly of a sleeve secured to and extending downwardly from the upper packer is then lowered into engagement with the lower packer.
  • the upper packer is then set by wire line tool and a pump is lowered into engagement with the sleeve.
  • FIGURE 1 Shown in FIGURE 1 is a pump assembly 10 installed within a pipe string 12 for increasing the recovery of oil by the pipe string 12.
  • the pipe string 12 is surrounded by a well casing 14.
  • the pipe string 12 extends through and is spaced from the well casing 14, forming an annular conduit between the pipe string 12 and the well casing 14.
  • the pump assembly 10 is preferably preassembled, for use in deviated wells. Portions of such wells deviate or vary from the vertical by as much as 60° or more. As such, the downward force imparted by components of the pump assembly 10 lowered into the pipe string 12 would likely be insufficient to easily or adequately secure adjacent components of the assembly within the pipe string.
  • the unitary construction of pump assembly 10 eliminates the need to construct the pump assembly 10 within a deviated well.
  • the pump assembly 10 includes a sleeve 16 for housing an hydraulically actuated pump 18, shown in FIGURES 1C and 2.
  • a tubular pup joint 20 Extending from the upper end of the sleeve 16 is a tubular pup joint 20.
  • the pup joint 20 in turn, is secured to the passageway of an upper packer 22.
  • a tubular pup joint 24 secured to and extending from the lower end of the sleeve 16 is a tubular pup joint 24, which in turn is secured to the fluid passageway of a lower packer 26.
  • a nipple assembly 28 Secured to and extending downwardly from the lower packer 26 is a nipple assembly 28, having a passage in communication with the pipe string 12.
  • a wireline re-entry guide 30 Secured to the lower end of the nipple assembly 28 is a wireline re-entry guide 30, which facilitates retrieval of a wireline into the nipple assembly 28 and through the pump assembly 10, as needed.
  • the upper packer 22 is of the type set by wireline tool, such as a "Magnum Type GT" packer, manufactured by Dresser Industries, Inc.
  • the pump assembly 10 is initially secured at a desired location within the pipe string 12 by actuating the upper packer 22 by wireline tool. Such actuation expands the upper packer 22 from a retracted position, allowing insertion of the pump assembly 10 through the pipe string 12, into an expanded position, securing the pump assembly 10 within the pipe string 12. In the expanded position, the upper packer 22 also seals the pipe string 12 against the passage of oil and other fluid beyond the upper packer 22, around the pump assembly 10.
  • the lower packer 26 is of the type set hydraulically, such as a "Magnum Type PG-1" packer manufactured by Dresser Industries, Inc.
  • the lower packer 26 is actuated from a retracted position, allowing insertion of the pump assembly 10 through the pipe string 12, into an expanded position, securing the lower end of the pump assembly 10 to the pipe string 12. In the expanded position, the lower packer 26 also seals the pipe string against the passage of oil and other fluid beyond the lower packer 26, around the pump assembly 10.
  • the lower packer 26 is set, or actuated, after the upper packer 22 has been set. This is accomplished by inserting a plug (not shown) in the nipple assembly 28 by wireline. Pressurized hydraulic fluid is then supplied to the lower packer 26 to set the packer. The plug is then removed from the nipple assembly 28 by wireline.
  • the upper and lower packers 22 and 26 are both constructed to be set permanently within the pipe string 12. In the alternative, one or both of the upper and lower packers 22 and 26 may be retrievable. However, because permanently set packers have fluid passageways of relatively larger diameter as compared with the retrievable packers, it is preferable that both the upper and lower packers 22 and 26 be of the permanently set variety.
  • the upper and lower packers 22 and 26 form a seal assembly which both secures the pump assembly 10 within the pipe string 12 and forms a sealed, substantially annular chamber 32 defined by the exterior of the pump assembly 10 and the interior of the pipe string 12, between the upper and lower packers 22 and 26.
  • the pump assembly 10 is secured within the pipe string 12 adjacent perforations 34 in the pipe string 12, formed by conventional means. The perforations allow the flow of fluid between the sleeve 16 and the annular space between the pipe string 12 and well casing 14.
  • the sleeve 16 includes ports 38 that allow fluid communication between the pump 18, the chamber 32 and the annular space between the pipe string 12 and the well casing 14 through the perforations 34.
  • FIGURES 1A, 1B and 1C illustrate generally the method of installing the pump assembly 10 within the pipe string 12.
  • the perforations 34 are first made through the pipe string 12 at a desired depth.
  • the previously assembled pump assembly 10 (without the pump 18) is lowered by wireline into the pipe string 12 to a location where the perforations 34 and the pipe string 12 are substantially adjacent the sleeve 16 of the pump assembly 10.
  • the upper packer 22 is then set by wireline tool.
  • the lower packer 26 is then set hydraulically.
  • the pump 18 is then inserted into the pump assembly 10 by wireline and secured within the sleeve 16.
  • the pump 18 is preferably a reverse-flow jet pump, the operation and construction of which is shown in the schematic cross-section in FIGURE 2.
  • the flow of pressurized hydraulic fluid used to actuate the pump 18 and the flow of pumped fluid from the pipe string 12 are indicated by bold arrows in FIGURE 2.
  • the pump 18 includes a nozzle 40 which ejects the pressurized hydraulic fluid upwardly into a diffuser 42.
  • the pressurized hydraulic fluid Prior to entering the diffuser 42, the pressurized hydraulic fluid mixes with and imparts momentum to oil and other fluids received from an inlet 44 at the lower end of the pump 18, which is in fluid communication with the lower packer 26 and the pipe string 16 below the pump assembly 10.
  • a mixture of the hydraulic fluid, oil and other fluid from the pipe string 12 is discharged under pressure from the diffuser 42, through the upper packer 22, and to the surface through the pipe string 12.
  • FIGURE 3 a pump 50 is shown which may used in the pump assembly 10 of FIGURE 1 as an alternative to the reverse-flow jet pump 18 shown in FIGURE 2.
  • the flow of hydraulic fluid and pumped fluid are illustrated by bold arrows in FIGURE 3.
  • the pump 50 is a standard-flow jet pump.
  • pressurized hydraulic fluid is supplied to the inlet 52 of the pump 50, through the upper packer 22 and the pup joint 20.
  • the hydraulic fluid is forced by a nozzle 54 into a downwardly extending diffuser 56.
  • the hydraulic fluid Prior to entering the diffuser 56, the hydraulic fluid mixes with oil and other fluid received from the pipe string 12 through the lower packer 26 and the pup joint 24.
  • the pressurized mixture of hydraulic fluid, oil and other fluids received from the pipe string 12 are discharged under pressure from the pump 50, through ports 38 and then the perforations 34 in the pipe string 12. This mixture of fluids is then forced to the surface through the annular passage between the pipe string 12 and the well casing 14.
  • the jet pumps 18 and 50 are preferably mounted within a sleeve 16 that is a sliding sleeve.
  • the sleeve 16 includes a slide 60, which may be adjusted by conventional means to close the ports 38 in the sleeve 16 when operation of either of the pumps 18 or 50 is not desired.
  • the pup joints 20 and 24 are preferably of a length which will allow the entire pump assembly 10 to fit within a single segment of the pipe string 12, while providing sufficient length upstream and downstream of the pumps 18 and 50 to reduce turbulence in the flow of fluids prior to entering the pumps and/or prior to discharge into the pipe string 12.
  • FIGURE 4 illustrates a pump assembly 10' for use in non-deviated wells.
  • Components of pump assembly 10' that are substantially identical in construction and function to the components of pump assembly 10 of FIGURE 1 are identified with the same reference numeral, followed by a prime (“'") designation.
  • the pump assembly 10' differs from pump assembly 10 primarily in the construction and function of the lower packer 62, the means and method by which the lower packer 62 is secured to the remainder of the pump assembly 10', and the method by which the pump assembly 10' is installed within the pipe string 12.
  • the lower packer 62 of the pump assembly 10' is set by wireline, such as a "Magnum Type GT" packer manufactured by Dresser Industries, Inc.
  • the lower packer 62 is secured to the lower end of the pump assembly 10' by means of a latch seal assembly 64, which is secured to the pup joint 24' by means of a collar 66. It will be appreciated that the latch seal assembly 64 can be secured to the lower packer 62 by stabbing the lower end of the assembly 64 into the upper end of the packer 62.
  • the lower packer 62 is secured to a desired location within the pipe string 12 by wireline tool.
  • the remainder of the pump assembly 10' is lowered by wireline into the pipe string 12 and stabbed into secure engagement with the lower packer 62 by means of the latch seal assembly 64.
  • the upper packer 22' is then set by wireline tool to fully secure the pump assembly 10' within the pipe string 12.
  • FIGURES 4A, 4B and 4C illustrate the method of installing the pump assembly 10' within the pipe string 12.
  • perforations 34 are made in the pipe string 12 by conventional means.
  • the lower packer 62 is lowered into position within the pipe string 12 and set by wireline tool, at a point below the perforations 34.
  • the remainder of the pump assembly 10' (without the pump 18') is lowered into the pipe string 12 and stabbed into the lower packer 62.
  • a pump 18' is then lowered by wireline into the pump assembly 10' and secured within the sleeve 16'.
  • jet-pumps 36 or 56 may be utilized in the construction and operation of the pump assembly 10'.
  • packers 22' and 62 of the pump assembly 10' may be retrievable, if desired.
  • a bottomhole assembly can be used to secure either a jet pump or a hydraulic pump to the embodiments of FIGURES 1 and 4, in place of the sleeves 16 and 16'.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP19910107456 1990-07-03 1991-05-08 Apparatus and method for inserting a pump within a conduit Withdrawn EP0464340A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54774290A 1990-07-03 1990-07-03
US547742 1990-07-03

Publications (2)

Publication Number Publication Date
EP0464340A2 true EP0464340A2 (fr) 1992-01-08
EP0464340A3 EP0464340A3 (en) 1992-10-14

Family

ID=24185943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910107456 Withdrawn EP0464340A3 (en) 1990-07-03 1991-05-08 Apparatus and method for inserting a pump within a conduit

Country Status (2)

Country Link
EP (1) EP0464340A3 (fr)
NO (1) NO912591L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003001028A1 (fr) * 2001-06-25 2003-01-03 Weatherford/Lamb, Inc. Pompe de puits de forage a cavite progressive conçue pour des systemes d'elevation artificielle
EP2216501A1 (fr) * 2009-02-10 2010-08-11 BP Exploration Operating Company Limited Pompe
CN103089193A (zh) * 2011-10-31 2013-05-08 中国石油化工股份有限公司 一种筛管顶部膨胀套管封堵的尾管完井的方法
CN112302577A (zh) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 射流泵排水装置和管柱

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806532A (en) * 1953-10-12 1957-09-17 Baker Oil Tools Inc Method and apparatus for pressuring well bores
US3169579A (en) * 1953-11-30 1965-02-16 Mcgaffey Taylor Corp Axially spaced well packers
GB2107397A (en) * 1981-07-10 1983-04-27 Otis Eng Co Well production apparatus and method
US4474234A (en) * 1981-12-02 1984-10-02 Compagnie Francaise Des Petroles Safety valve installed below an activation pump in a hydrocarbon production well
US4628997A (en) * 1984-06-22 1986-12-16 Hughes Tool Company Packoff
GB2200386A (en) * 1987-01-21 1988-08-03 Ava Int Corp Well completion apparatus
US4860825A (en) * 1985-02-14 1989-08-29 Institut Francais Du Petrole Device for positioning a tool or instrument in a duct

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806532A (en) * 1953-10-12 1957-09-17 Baker Oil Tools Inc Method and apparatus for pressuring well bores
US3169579A (en) * 1953-11-30 1965-02-16 Mcgaffey Taylor Corp Axially spaced well packers
GB2107397A (en) * 1981-07-10 1983-04-27 Otis Eng Co Well production apparatus and method
US4474234A (en) * 1981-12-02 1984-10-02 Compagnie Francaise Des Petroles Safety valve installed below an activation pump in a hydrocarbon production well
US4628997A (en) * 1984-06-22 1986-12-16 Hughes Tool Company Packoff
US4860825A (en) * 1985-02-14 1989-08-29 Institut Francais Du Petrole Device for positioning a tool or instrument in a duct
GB2200386A (en) * 1987-01-21 1988-08-03 Ava Int Corp Well completion apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003001028A1 (fr) * 2001-06-25 2003-01-03 Weatherford/Lamb, Inc. Pompe de puits de forage a cavite progressive conçue pour des systemes d'elevation artificielle
US6675902B2 (en) 2001-06-25 2004-01-13 Weatherford/Lamb, Inc. Progressive cavity wellbore pump and method of use in artificial lift systems
EP2216501A1 (fr) * 2009-02-10 2010-08-11 BP Exploration Operating Company Limited Pompe
WO2010092320A1 (fr) 2009-02-10 2010-08-19 Bp Exploration Operating Company Limited Pompe
US8985975B2 (en) 2009-02-10 2015-03-24 Bp Exploration Operating Company Limited Multistage pump suitable for use in wells
CN103089193A (zh) * 2011-10-31 2013-05-08 中国石油化工股份有限公司 一种筛管顶部膨胀套管封堵的尾管完井的方法
CN112302577A (zh) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 射流泵排水装置和管柱

Also Published As

Publication number Publication date
NO912591D0 (no) 1991-07-02
NO912591L (no) 1992-01-06
EP0464340A3 (en) 1992-10-14

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