US20220316295A1 - Packer - Google Patents
Packer Download PDFInfo
- Publication number
- US20220316295A1 US20220316295A1 US17/222,427 US202117222427A US2022316295A1 US 20220316295 A1 US20220316295 A1 US 20220316295A1 US 202117222427 A US202117222427 A US 202117222427A US 2022316295 A1 US2022316295 A1 US 2022316295A1
- Authority
- US
- United States
- Prior art keywords
- packer
- mandrel
- intensifier
- configuration
- section
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- -1 steam Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
- E21B33/1216—Anti-extrusion means, e.g. means to prevent cold flow of rubber packing
Definitions
- the intensifier configuration 50 is, in embodiments, a ramp extending from a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius. In other embodiments the intensifier configuration is a step between a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius. Both of these embodiments lead to a reduced annular area between the intensifier configuration 50 and the tubular structure 36 against which the packer 12 is to be set. The element 16 is forced, through relative motion between the element 16 and the mandrel 14 , to reside in that reduced annular area with attendant increases in rubber pressures.
- Embodiment 2 The packer as in any prior embodiment, wherein the intensifier configuration is a section of the mandrel having an enlarged radius.
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A packer including a packer element, a mandrel about which the packer element is disposed, an intensifier configuration on the mandrel.
Description
- In the resource recovery industry, Packers are oft used sealing devices that are essential for many well operations. Some are permanent and some are retrievable but in all cases they must be capable of holding significant differential pressures and pressure reversals. High element pressures are important for this utility as are back up systems to avoid element extrusion. While the art has a plethora of packers available commercially, changing industry standards, changing environmental conditions and changing economic factors require the development of new packers having similar utility while being less costly, shorter, etc.
- An embodiment of a packer including a packer element, a mandrel about which the packer element is disposed, an intensifier configuration on the mandrel.
- The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:
-
FIG. 1 is a section view of a backup as disclosed herein in a run-in position and disposed in a packer; -
FIG. 2 is the same section view asFIG. 1 but in a set position; -
FIG. 3 is a view of an alternate intensifier configuration; and -
FIG. 4 is a schematic view of a wellbore system including the backup as disclosed herein. - A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.
- Referring to
FIG. 1 , abackup 10 is illustrated as a part of apacker 12. It is to be appreciated that the illustration is not intended to limit the application of thebackup 10. Rather backup 10 is employable with any tool that requires the function of this backup. UsingFIG. 1 as merely an example, thebackup 10 function is used in connection with thepacker 12. Thebackup 10 is disposed upon amandrel 14 and adjacent apacker element 16 also disposed about themandrel 14. The backup itself comprises acapture ring 18 and abackup ring 20. Optionally, thebackup 10 may also include aresilient member 22 that functions to maintain contact between thebackup ring 20 and theelement 16 during running and setting. - Focusing upon the
backup 10, the backup ring includes abulbous base 24 that is articulatingly received in arecess 26 of thecapture ring 18. Thebulbous base 24 and therecess 26 allow a degree of freedom to thebackup ring 20 to articulate relative to thecapture ring 18 that would not be available in a solid base connection that relies upon material plastic deformation. The result is a much easier to set system (of a packer in this example) since less force is needed to displace thebackup 10. - The
capture ring 18 further includes a support member 28. The support member is cantilevered from thecapture ring 18 and deforms to provide additional shear strength to thebackup ring 20 during setting. The support member extends from thecapture ring 18 to an extent that when deformed radially outwardly during use, adistal end 30 of the support member 28 falls between agauge diameter 32 of thepacker 12 in which thebackup 10 is installed and aninside diameter surface 34 of atubular member 36 in which thepacker 12 is set. Close to theinside diameter surface 34 is desirable so long as theend 30 is not so close as to interfere with retrieval by making contact with thesurface 34. Thecapture ring 18 also includes a stress reduction opening 38 and a load brace 40 that each work with the support member 28 to allow for deformation thereof and then support thereof by brace 40 when set. The set position of all of the components described is illustrated inFIG. 2 . - It is noted that Additive Manufacture is a quite suitable method of manufacture of this complex geometry of the
capture ring 18 and thebackup ring 20. - Another feature of the
packer 12 embodiment discussed is anintensifier configuration 50 visible in bothFIGS. 1 and 2 , albeit in different positions. It is to be understood that the intensifier need not be used with thebackup 10 as described herein but may also be used with any seal assembly regardless of specific components of that seal assembly. Theintensifier configuration 50 causes rubber pressures during deployment to be increased over what they would be based upon an equivalent setting force without theintensifier configuration 50. This means the intensifier is quite advantageous to the industry because through the use of anintensifier configuration 50, a lower setting force may be designed into a tool and yet a sufficient rubber pressure may still be achieved. This leads to less costly and shorter packers 12 (or other sealing assemblies). - The
intensifier configuration 50 is, in embodiments, a ramp extending from a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius. In other embodiments the intensifier configuration is a step between a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius. Both of these embodiments lead to a reduced annular area between theintensifier configuration 50 and thetubular structure 36 against which thepacker 12 is to be set. Theelement 16 is forced, through relative motion between theelement 16 and themandrel 14, to reside in that reduced annular area with attendant increases in rubber pressures. In the illustrations, the intensifier configuration is a ramp, up which theelement 16 is forced during setting such that the element must occupy the smaller annular dimension between themandrel 14 and thesurface 34, with the product of that action being the higher rubber pressures noted even while input force remains constant. While the ramp configuration ofintensifier configuration 50 is illustrated and has the additional value of reducing element tearing due to the smooth inclined surface, it is important to note that any change in annular dimension will beget the same increase in rubber pressure when the element is forced into that smaller annular space. This is true even for a step configuration (seeFIG. 3 ) where the outside surface of themandrel 14 simply steps up to a larger outside diameter. Rubber pressure will be increased similar to that of the ramp embodiment though it is possible some rubber tearing may also occur due to higher shear stresses in the rubber as it attempts to flow over thestep configuration 50. - Referring to
FIG. 4 , awellbore system 60 is illustrated having aborehole 62 within asubsurface formation 64. Astring 66 is disposed in theborehole 62 and abackup 10 is connected with thestring 66. - Set forth below are some embodiments of the foregoing disclosure:
- Embodiment 1: A packer including a packer element, a mandrel about which the packer element is disposed, an intensifier configuration on the mandrel.
- Embodiment 2: The packer as in any prior embodiment, wherein the intensifier configuration is a section of the mandrel having an enlarged radius.
- Embodiment 3: The packer as in any prior embodiment, wherein the intensifier configuration is a ramp extending from a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius.
- Embodiment 4: The packer as in any prior embodiment, wherein the intensifier configuration is a step between a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius.
- Embodiment 5: The packer as in any prior embodiment, wherein the intensifier configuration is movable relative to the packer element.
- Embodiment 6: The packer as in any prior embodiment, wherein the intensifier configuration is movable from a position substantially longitudinally adjacent the packer element to a position radially inside of the packer element.
- Embodiment 7: A wellbore including a borehole in a subsurface formation, a string in the borehole including a packer as in any prior embodiment.
- Embodiment 8: The wellbore as in any prior embodiment, wherein the intensifier configuration is a section of the mandrel having an enlarged radius.
- Embodiment 9: The wellbore as in any prior embodiment, wherein the intensifier configuration is a ramp.
- The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Further, it should be noted that the terms “first,” “second,” and the like herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms “about”, “substantially” and “generally” are intended to include the degree of error associated with measurement of the particular quantity based upon the equipment available at the time of filing the application. For example, “about” and/or “substantially” and/or “generally” can include a range of ±8% or 5%, or 2% of a given value.
- The teachings of the present disclosure may be used in a variety of well operations. These operations may involve using one or more treatment agents to treat a formation, the fluids resident in a formation, a wellbore, and/or equipment in the wellbore, such as production tubing. The treatment agents may be in the form of liquids, gases, solids, semi-solids, and mixtures thereof. Illustrative treatment agents include, but are not limited to, fracturing fluids, acids, steam, water, brine, anti-corrosion agents, cement, permeability modifiers, drilling muds, emulsifiers, demulsifiers, tracers, flow improvers etc. Illustrative well operations include, but are not limited to, hydraulic fracturing, stimulation, tracer injection, cleaning, acidizing, steam injection, water flooding, cementing, etc.
- While the invention has been described with reference to an exemplary embodiment or embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the claims. Also, in the drawings and the description, there have been disclosed exemplary embodiments of the invention and, although specific terms may have been employed, they are unless otherwise stated used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention therefore not being so limited.
Claims (11)
1. A packer comprising:
a packer element;
a mandrel about which the packer element is disposed;
an intensifier configuration on the mandrel.
2. The packer as claimed in claim 1 wherein the intensifier configuration is a section of the mandrel having an enlarged radius.
3. The packer as claimed in claim 1 wherein the intensifier configuration is a ramp extending from a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius.
4. The packer as claimed in claim 1 wherein the intensifier configuration is a step between a smaller radial dimension section of the mandrel to a section of the mandrel having a larger radius.
5. The packer as claimed in claim 1 wherein the intensifier configuration is movable relative to the packer element.
6. The packer as claimed in claim 5 wherein the intensifier configuration is movable from a position substantially longitudinally adjacent the packer element to a position radially inside of the packer element.
7. A wellbore comprising:
a borehole in a subsurface formation;
a string in the borehole including a packer as claimed in claim 1 .
8. The wellbore as claimed in claim 7 wherein the intensifier configuration is a section of the mandrel having an enlarged radius.
9. The wellbore as claimed in claim 7 wherein the intensifier configuration is a ramp.
10. The wellbore as claimed in claim 7 wherein the intensifier configuration is a step.
11. The wellbore as claimed in claim 7 wherein the packer element exhibits a smaller annular dimension when forced between a tubular in which the packer is to be set and the intensifier configuration.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/222,427 US20220316295A1 (en) | 2021-04-05 | 2021-04-05 | Packer |
PCT/US2022/071466 WO2022217196A1 (en) | 2021-04-05 | 2022-03-31 | Packer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/222,427 US20220316295A1 (en) | 2021-04-05 | 2021-04-05 | Packer |
Publications (1)
Publication Number | Publication Date |
---|---|
US20220316295A1 true US20220316295A1 (en) | 2022-10-06 |
Family
ID=83448883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/222,427 Abandoned US20220316295A1 (en) | 2021-04-05 | 2021-04-05 | Packer |
Country Status (2)
Country | Link |
---|---|
US (1) | US20220316295A1 (en) |
WO (1) | WO2022217196A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160258244A1 (en) * | 2015-03-06 | 2016-09-08 | Team Oil Tools, Lp | Open-hole packer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5701954A (en) * | 1996-03-06 | 1997-12-30 | Halliburton Energy Services, Inc. | High temperature, high pressure retrievable packer |
US6102117A (en) * | 1998-05-22 | 2000-08-15 | Halliburton Energy Services, Inc. | Retrievable high pressure, high temperature packer apparatus with anti-extrusion system |
US7861791B2 (en) * | 2008-05-12 | 2011-01-04 | Halliburton Energy Services, Inc. | High circulation rate packer and setting method for same |
US8479809B2 (en) * | 2010-11-30 | 2013-07-09 | Baker Hughes Incorporated | Anti-extrusion backup system, packing element system having backup system, and method |
US9637997B2 (en) * | 2013-08-29 | 2017-05-02 | Weatherford Technology Holdings, Llc | Packer having swellable and compressible elements |
-
2021
- 2021-04-05 US US17/222,427 patent/US20220316295A1/en not_active Abandoned
-
2022
- 2022-03-31 WO PCT/US2022/071466 patent/WO2022217196A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160258244A1 (en) * | 2015-03-06 | 2016-09-08 | Team Oil Tools, Lp | Open-hole packer |
Also Published As
Publication number | Publication date |
---|---|
WO2022217196A1 (en) | 2022-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |