WO2021003457A1 - Modular downhole tool reservoir system - Google Patents
Modular downhole tool reservoir system Download PDFInfo
- Publication number
- WO2021003457A1 WO2021003457A1 PCT/US2020/040795 US2020040795W WO2021003457A1 WO 2021003457 A1 WO2021003457 A1 WO 2021003457A1 US 2020040795 W US2020040795 W US 2020040795W WO 2021003457 A1 WO2021003457 A1 WO 2021003457A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reservoir
- pressure tube
- bottom hole
- hole assembly
- fluid volume
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 131
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims description 71
- 238000004891 communication Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
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
- E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
-
- 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
- E21B33/127—Packers; Plugs with inflatable sleeve
Definitions
- the present disclosure relates to a bottom hole assembly including a modular downhole reservoir system which facilitates isolation of a subterranean formation surrounding a downhole tubular.
- a bottom hole assembly is an apparatus that is adapted for use within a borehole that extends into the earth to reach a target subterranean formation that is expected to contain valuable hydrocarbons, such as oil, gas and combinations thereof.
- a bottom hole assembly may be run into an existing borehole on a wireline that may provide a physical tether as well as providing connections for electrical power delivery and data communication between the bottom hole assembly and a computer system at the surface near the borehole.
- a bottom hole assembly may include one or more downhole tools, components or subsystems that perform one or more functions of the bottom hole assembly.
- Certain downhole tools which may also be known as setting tools or more specifically, inflatable packer setting tools, and may include a pump for delivering pressurized fluid to an isolation tool; for example, a plug, a packer, or an inflatable packer which may also be part of a bottom hole assembly.
- the setting tool using the pump may be used to draw in well-fluid present within a borehole to pressurize and deliver the well -fluid to the isolation tool.
- Isolation tools require a range of fluid pressures to adequately set within a borehole.
- a low pressure may be required to expand and contact the borehole; for example, less than 200 psi.
- the final set pressure a high pressure, may be as much as 5,000 psi or greater. Additionally, depending on volume and inflation flowrates, the final set may require over one hour to achieve.
- Certain boreholes may contain well-fluid that is incompatible with downhole pumps.
- the well-fluid may be heavy mud, corrosive fluids or gas for which the pump is not intended or capable to operate with.
- some isolation tools may be incompatible with certain well-fluids which may otherwise be used to pressure such an isolation tool.
- downhole tools known as downhole reservoir systems exist which allow an operator to carry a reservoir fluid downhole within a borehole from surface, which is compatible with the pump and/or the isolation tool.
- the reservoir fluid is filled in the reservoir system prior to deploying the bottom hole assembly within the borehole and may be for example, water, hydraulic oil, another fluid, or combination thereof.
- a bottom hole assembly including a setting tool, a reservoir system and an isolation tool, may be deployed within the borehole, such that the reservoir system delivers a volume of reservoir fluid to the pump, so that the isolation tool receives pressurized reservoir fluid from the pump and may be pressurized at various locations within the borehole.
- the bottom hole assembly may be used to isolate segments of the borehole for water-shut off, pressure isolation, sand isolation; or in conjunction with a formation fracturing process, formation treatment process, other processes, or other downhole operations.
- One embodiment provides a modular downhole tool reservoir system comprising a first and second reservoir module.
- Each reservoir module comprises a reservoir fluid volume, a housing, a low pressure tube, a high pressure tube, a piston slidably sealed in the housing, the piston exposed on a first surface to well-fluid communicated through one or more ports in the housing and isolating the reservoir fluid volume exposed to a second surface of the piston.
- the second reservoir is disposed to deliver the second reservoir fluid volume to the low-pressure tube of the first reservoir module.
- a bottom hole assembly comprises the modular downhole tool reservoir system and a setting tool including a pump having in intake and an output, wherein the first reservoir module is disposed to deliver the first and second reservoir fluid volumes to the intake, and the output is disposed to deliver the first and second reservoir fluid volumes to the high-pressure tube of the first reservoir module and the high pressure tube of the second reservoir module fluidically connected thereto.
- the bottom hole assembly further comprises an isolation tool disposed to receive the first and second reservoir fluid volumes from the high-pressure tubes.
- a method of isolating a segment of the borehole comprising the steps of: deploying the BHA on wireline; positioning the BHA near or within a tubular segment such that the isolation tool is in a position to isolate the desired segments of the borehole upon pressurization; activating the setting tool to draw in the first and second reservoir fluid volumes and deliver the volumes to the isolation tool; pressurizing the isolation tool to engage the borehole; isolating a segment of the borehole above the isolation tool from a segment of the borehole below the isolation tool.
- FIG. 1 is a block diagram of a bottom hole assembly including a cable head, a setting tool, a reservoir system and an isolation tool.
- FIGS. 2A-C are diagrams of a bottom hole assembly, the bottom hole assembly including a cable head, a setting tool, a reservoir system and an isolation tool being run into a borehole on a wireline, the isolation tool in the borehole set to isolate a borehole region above the isolation tool from a segment of borehole below the isolation tool and the isolation tool left in the borehole.
- FIG. 3 is cross-section views of a reservoir module.
- FIG. 4 is a break-out section view of bottom hole assembly including a setting tool and a reservoir system including two reservoir modules.
- FIG. 5 is a close-up view of the dash enclosed area of FIG.4.
- FIG 6. is a close-up partial section view of a section of a reservoir module.
- FIG. 7 is a partial section view of a section of a reservoir system.
- FIG. 8 is a partial section of reservoir system connected to an isolation tool.
- the downhole tool comprises a reservoir module.
- the reservoir module comprises a reservoir fluid volume, a housing, upper and lower endcaps, a piston, a high-pressure tube, a low-pressure tube and a coupler.
- the upper and lower endcaps disposed within and are secured at opposing ends of the housing; a high pressure tube including an inner and outer surface residing inside a low pressure tube including an inner and outer surface, extends from an upper region to the lower region of the housing, which is secured and fluidically connected with the upper end cap by the coupler and secured to the lower endcap; the piston is slidably sealed in the housing and on the low pressure tube.
- the piston is exposed on a first surface to well-fluid communicated through one or more well-fluid ports in the housing and isolates the reservoir fluid volume contained in the housing and exposed to a second surface of the piston.
- the well-fluid may be a liquid, gas or a combination thereof.
- the well-fluid may be air, oil, water, mud, brine, corrosive fluid, a gas fluid, another fluid, any fluid present in a subterranean borehole, or a combination thereof.
- the housing comprises a housing bore and may secure to a second reservoir module housing, a setting tool, an adapter to fluidically connect to an isolation tool, or to another downhole tool.
- the upper and lower endcaps comprise passages which facilitate low-pressure fluid communication from a lower end of the reservoir module to the upper end of reservoir module, through a passage formed by the outer surface of the high pressure tube and the inner surface of the low-pressure tube.
- the upper endcap additionally comprises a high-pressure passage which facilitates high pressure communication from an upper end of the reservoir module to and through the high-pressure tube to the lower end of the reservoir module.
- the piston comprises a through-hole with a rod seal to slidably seal the piston to the outer surface of the low-pressure tube and a piston seal to slidably seal on the housing bore of the housing.
- the piston may further comprise glide rings or bushings to ensure that it may smoothly travel the length of the housing bore and the low-pressure tube.
- the piston forces the reservoir fluid volume through upper endcap passages of the upper end cap.
- the reservoir module may further comprise a spring disposed within the housing bore, surrounding the low-pressure tube, in contact with the first surface of the piston and in contact with an upper end of the lower endcap. The spring may function to apply a force to the piston thereby pressurizing the reservoir fluid volume.
- the downhole tool comprises a second reservoir module and is connected to the first reservoir module.
- the reservoir fluid volume of the second or lower reservoir module is fluidically connected to the reservoir fluid volume of the first or upper reservoir module and the high-pressure tube of the second or lower reservoir module is fluidically connected to the high-pressure tube of the first or upper reservoir module.
- the downhole tool includes a third or more reservoir modules, each reservoir fluid volume fluidically connected to the next and upper reservoir fluid volume and each high-pressure tube of one reservoir module fluidically connected to the high pressure tubes of the other reservoir modules.
- a bottom hole assembly which comprises the downhole tool and a setting tool including a pump having an intake and an output.
- the first reservoir module disposed to deliver reservoir fluid volume of the first and second reservoir module to the intake and the output is disposed to deliver the first and second reservoir fluid volumes to the high-pressure tube of the first reservoir module and the high pressure tube of the second reservoir module fluidically connected thereto.
- the downhole tool may be positioned downhole of the setting tool.
- the downhole tool may be positioned uphole of the setting tool.
- the bottom hole assembly further comprises an isolation tool disposed to receive fluid from the high-pressure tubes.
- the isolation tool is an inflatable packer.
- the isolation tool is an inflatable straddle packer. [0036] In an embodiment, the isolation tool is a bridge plug.
- the isolation tool is a production packer.
- the isolation tool is a permanent packer.
- the isolation tool is a cement retainer.
- the isolation tool is a frac plug.
- the bottom hole assembly may be connected to a wireline that extends from a wireline unit or truck located near an opening into the borehole.
- the wireline may be used to provide physical support of the bottom hole assembly as it is raised and lowered into and within the borehole, supply electrical power to electronic components therein, and/or provide for data communication between the bottom hole assembly and control systems outside the borehole. While the wireline may be sufficient for raising and lowering the bottom hole assembly within a substantially vertical wellbore or segment of a wellbore, the bottom hole assembly may further include a tractor that can push or pull the downhole tool along the borehole regardless of the orientation of the borehole, such as in a horizontal segment of a borehole.
- a method for the delivery of fluid out of a bottom hole assembly comprising the steps of deploying the bottom hole assembly including a downhole tool, and a first and second reservoir module including a first reservoir fluid volume and a second reservoir fluid volume, respectively; activating the bottom hole assembly; a piston within the second reservoir module forcing the second reservoir fluid volume to the lower end of the first reservoir module and into a low pressure tube therethrough; the first reservoir module delivering the first reservoir fluid volume to the downhole tool and fluidically connecting the second reservoir fluid volume to the downhole tool.
- a method of isolating a segment of a borehole comprising the steps of: filling a first and second reservoir module with fluid volumes prior to deployment; deploying the bottom hole assembly on wireline into the borehole; positioning the bottom hole assembly near or within a tubular segment such that the isolation tool is in a position to isolate the desired segments of the borehole upon pressurization; activating the downhole tool to draw in the first and second reservoir fluid volumes and deliver the volumes to the isolation tool; pressurizing the isolation tool to engage the borehole; isolating a segment of the borehole above the isolation tool from a segment of the borehole below the isolation tool.
- the method further includes using the locating tool to locate the desired tubular segment.
- the locating tool is a mechanical locating tool.
- the locating tool is a wireline tool.
- the locating tool is an electromagnetic induction tool.
- the locating tool is a casing collar locator.
- FIG. 1 is a block diagram of a bottom hole assembly 10 including a cable head 15, a setting tool 50 including a motor module 20 and a pump module 30, a reservoir system 80 and an isolation tool 100.
- the reservoir system 80 may include one or more reservoir modules 60. See FIG. 4.
- FIGS. 2A-C are schematics of an operation using the bottom hole assembly 10.
- the bottom hole assembly 10 is run into the borehole 6.
- the bottom hole assembly includes a cable head 15, a setting tool including a motor module 20 and a pump module 30, a reservoir system 80, and an isolation tool 100, being run into the borehole 6 on a wireline 5 and in communication with a surface system 22.
- the borehole 6 has a downhole direction 7, an uphole direction 8 and an inner wall 9.
- the isolation tool 100 in the borehole 6 is set near a subterranean formation 11 to isolate a borehole 6 region above the isolation tool 100 from a segment of borehole 6 below the isolation tool 100.
- FIG. 2C the isolation tool 100 is left in the borehole 6 and the remainder of the bottom hole assembly 10 removed from the borehole 6.
- FIG. 3 is cross-section views of a reservoir module 60.
- the reservoir module 60 includes a reservoir fluid chamber 59, a housing 70, upper end cap 68, lower endcap 67, a piston 71, a high-pressure tube 74, a low-pressure tube 73 and a coupler 76.
- the upper end cap 68 is secured at the upper end of the housing 70.
- the lower endcap is secured to the lower end of the housing 70 and sealed therein.
- the coupler 76 is secured and sealed to the lower end of the upper endcap 68 and secures and seals high-pressure tube 74 which is also secured at the lower endcap 67.
- a high-pressure passage 66 is routed through the reservoir module 60.
- the high pressure passage 66 is formed by a central through-hole of the upper endcap 68 which is sealed and fluidically connected to a through-hole of coupler 76, which is further sealed and fluidically connected to the interior of the high pressure tube 74.
- the high-pressure tube 74 is routed through the lower endcap 67 and is surrounded by the low-pressure tube 73.
- low pressure tube holes 75 fluidically connect fluid from the interior of the low-pressure tube 73 to the exterior of the low-pressure tube 73.
- the region exterior the low-pressure tube 73 is fluidically connected to upper endcap passage 69 of upper endcap 68.
- the lower end cap 67 comprises on or more lower end cap passages 65 which is fluidically connected to the region interior the low-pressure tube 73 and exterior the high-pressure tube 74.
- the piston 71 is slidably sealed in the housing 70 and on the low-pressure tube 73.
- the piston 71 is exposed on a piston first surface 78 to well-fluid communicated through one or more well-fluid ports 77 in the housing 70 and isolates the reservoir fluid chamber 59 in the housing 70 and exposed to a piston second surface 79.
- the piston 71 comprises a through-hole with a rod seal 88 to slidably seal the piston 71 to the outer surface of the low-pressure tube 73 and a piston seal 89 to slidably seal on the housing bore 87.
- the piston 71 may further comprise glide rings 90 to ensure that it may smoothly travel the length of the housing bore 87 and the low-pressure tube 73.
- a spring 72 is disposed within the housing 70 surrounding the low-pressure tube 73, is in contact with the piston first surface 78 and in contact with an upper end of the lower endcap 67. When the reservoir fluid chamber 59 is filled with a reservoir fluid volume; for example, prior to deployment, the spring 72 functions to apply a force to the piston 71 thereby pressurizing the reservoir fluid volume within the reservoir fluid chamber 59.
- FIG. 4 is a break-out section view of bottom hole assembly including a setting tool 50 and a reservoir system 80 including an upper reservoir module 60, a lower reservoir module 60A, and a bottom adapter 62.
- the upper reservoir module 60 is secured and sealed to the lower end of the setting tool pump module 30. See also FIG.5.
- the high-pressure passage 66 is sealed and fluidically connected to pump output 84.
- the upper end cap passage 69 of the upper reservoir module 60 is fluidically connected to pump chamber 82 which is in fluid communication with pump intake ports 83.
- the housing 70 of upper reservoir module 60 is secured and sealed to the upper end of the housing 70 of the lower reservoir module 60A.
- the bottom adapter 62 is secured and sealed to the lower end of the lower reservoir module 60A.
- the high-pressure passage 66 of the bottom adapter 62 is sealed to the high-pressure tube 74 of the lower reservoir module 60A.
- Fill port 63 is in fluid communication with fill passage 64, which is in fluid communication with the lower endcap passage 65 of the lower endcap 67 of the lower reservoir module 60A.
- the fill port 63 may be used to fill the reservoir fluid chambers 59 with a volume of reservoir fluid; for example, prior to deployment in a borehole 6.
- the pressure of the reservoir fluid being filled may act on the piston second surface 79 of the upper reservoir module 60 and the lower reservoir module 60A and may compress springs 72 such that the piston seals 89 of the upper reservoir module 60 piston 71 and the lower reservoir module 60 A piston 71 are temporarily unsealed from their respective housing bores 87 by entering larger bores 91 of the respective housings 70. In this manner, air or other gas within the reservoir fluid chambers 59 may be expelled from the reservoir system 80.
- FIG. 6 is partial section view close-up of depicting a piston in this temporarily unsealed position.
- the fluid will then flow out of low-pressure tube holes 75 of the low-pressure tube 73 of upper reservoir module 60 and into the upper endcap passage 69 of the upper endcap 68 of the upper reservoir module 60.
- the fluid will flow into the pump chamber 82 and into the pump intake ports 83.
- the piston 71 of the upper reservoir module 60 will translate in the uphole direction 8 and deliver the reservoir fluid volume in the reservoir fluid chamber 59 of the upper reservoir module 60, to upper endcap passage 69 of upper endcap 68 of the upper reservoir module 60.
- the fluid will flow into the pump chamber 82 and into the pump intake ports 83.
- the pump 85 will pressurize the reservoir fluid volumes and deliver it to the high-pressure passage 66 through the reservoir system 80.
- FIG. 7 is a partial section view of the reservoir system 80 with the pistons 71 shown after they have translated in the uphole direction 8 and delivered the reservoir fluid volumes from the reservoir fluid chambers 59 to the pump 85.
- the pistons translate in the downhole direction to deliver the reservoir fluid volumes to the pump.
- FIG. 8 is a partial section view of how a reservoir system 80 may be connected to an isolation tool 100.
- the bottom adapter 62 of the reservoir system 80 is secured to the isolation tool 100 and the high-pressure passage 66 is in fluid communication with the isolation tool 100.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/618,154 US20220259936A1 (en) | 2019-07-03 | 2020-07-02 | Modular downhole tool reservoir system |
NO20220146A NO20220146A1 (en) | 2019-07-03 | 2020-07-02 | Modular Downhole Tool Reservoir System |
GB2201187.8A GB2614092B (en) | 2019-07-03 | 2020-07-02 | Modular downhole tool reservoir system |
AU2020299613A AU2020299613A1 (en) | 2019-07-03 | 2020-07-02 | Modular downhole tool reservoir system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962870665P | 2019-07-03 | 2019-07-03 | |
US62/870,665 | 2019-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021003457A1 true WO2021003457A1 (en) | 2021-01-07 |
Family
ID=74100200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2020/040795 WO2021003457A1 (en) | 2019-07-03 | 2020-07-02 | Modular downhole tool reservoir system |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2020299613A1 (en) |
GB (1) | GB2614092B (en) |
NO (1) | NO20220146A1 (en) |
WO (1) | WO2021003457A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4840231A (en) * | 1988-04-22 | 1989-06-20 | Baker Hughes Incorporated | Method and apparatus for setting an inflatable packer |
US6213217B1 (en) * | 1999-04-15 | 2001-04-10 | Weatherford International, Inc. | Gas operated apparatus and method for maintaining relatively uniformed fluid pressure within an expandable well tool subjected to thermal variants |
US7059417B2 (en) * | 1995-08-22 | 2006-06-13 | Western Well Tool, Inc. | Puller-thruster downhole tool |
US7392851B2 (en) * | 2004-11-04 | 2008-07-01 | Schlumberger Technology Corporation | Inflatable packer assembly |
US7866387B2 (en) * | 2006-07-21 | 2011-01-11 | Halliburton Energy Services, Inc. | Packer variable volume excluder and sampling method therefor |
US20120012343A1 (en) * | 2010-07-13 | 2012-01-19 | Wilkin James F | Downhole Packer Having Swellable Sleeve |
US20180080303A1 (en) * | 2016-09-16 | 2018-03-22 | Morphpackers Limited | Packer |
-
2020
- 2020-07-02 NO NO20220146A patent/NO20220146A1/en unknown
- 2020-07-02 WO PCT/US2020/040795 patent/WO2021003457A1/en active Application Filing
- 2020-07-02 AU AU2020299613A patent/AU2020299613A1/en active Pending
- 2020-07-02 GB GB2201187.8A patent/GB2614092B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4840231A (en) * | 1988-04-22 | 1989-06-20 | Baker Hughes Incorporated | Method and apparatus for setting an inflatable packer |
US7059417B2 (en) * | 1995-08-22 | 2006-06-13 | Western Well Tool, Inc. | Puller-thruster downhole tool |
US6213217B1 (en) * | 1999-04-15 | 2001-04-10 | Weatherford International, Inc. | Gas operated apparatus and method for maintaining relatively uniformed fluid pressure within an expandable well tool subjected to thermal variants |
US7392851B2 (en) * | 2004-11-04 | 2008-07-01 | Schlumberger Technology Corporation | Inflatable packer assembly |
US7866387B2 (en) * | 2006-07-21 | 2011-01-11 | Halliburton Energy Services, Inc. | Packer variable volume excluder and sampling method therefor |
US20120012343A1 (en) * | 2010-07-13 | 2012-01-19 | Wilkin James F | Downhole Packer Having Swellable Sleeve |
US20180080303A1 (en) * | 2016-09-16 | 2018-03-22 | Morphpackers Limited | Packer |
Also Published As
Publication number | Publication date |
---|---|
GB2614092B (en) | 2024-02-14 |
NO20220146A1 (en) | 2022-01-31 |
GB202201187D0 (en) | 2022-03-16 |
GB2614092A (en) | 2023-06-28 |
AU2020299613A1 (en) | 2022-01-20 |
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