US20100108393A1 - Downhole mud motor and method of improving durabilty thereof - Google Patents
Downhole mud motor and method of improving durabilty thereofDownload PDFInfo
- Publication number
- US20100108393A1 US20100108393A1US12/264,591US26459108AUS2010108393A1US 20100108393 A1US20100108393 A1US 20100108393A1US 26459108 AUS26459108 AUS 26459108AUS 2010108393 A1US2010108393 A1US 2010108393A1
- Authority
- US
- United States
- Prior art keywords
- mud motor
- stator
- carbon nanotubes
- polymer
- elastomer
- 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
- 229920001971elastomerPolymers0.000claimsdescription34
- 239000000806elastomerSubstances0.000claimsdescription34
- OKTJSMMVPCPJKN-UHFFFAOYSA-NCarbonChemical compound[C]OKTJSMMVPCPJKN-UHFFFAOYSA-N0.000claimsdescription27
- 239000002041carbon nanotubeSubstances0.000claimsdescription19
- 229910021393carbon nanotubeInorganic materials0.000claimsdescription19
- 229920000642polymerPolymers0.000claimsdescription12
- 238000000034methodMethods0.000claimsdescription7
- 230000007423decreaseEffects0.000claimsdescription5
- 238000004891communicationMethods0.000claimsdescription3
- 230000003247decreasing effectEffects0.000claims2
- 230000020169heat generationEffects0.000description5
- 239000000463materialSubstances0.000description5
- 239000004215Carbon black (E152)Substances0.000description1
- 230000002411adverseEffects0.000description1
- 230000001627detrimental effectEffects0.000description1
- 230000000694effectsEffects0.000description1
- 229930195733hydrocarbonNatural products0.000description1
- 150000002430hydrocarbonsChemical class0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 239000002071nanotubeSubstances0.000description1
- 238000011084recoveryMethods0.000description1
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F01C1/101—Moineau-type
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F01C1/107—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C5/00—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable
- F01C5/04—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable the resiliently-deformable wall being part of the outer member, e.g. of a housing
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C5/00—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable
- F01C5/06—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable the resiliently-deformable wall being a separate member
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
Definitions
- Downhole tools used in the hydrocarbon recovery industryoften experience extreme conditions, such as, high temperatures and high pressures, for example. These high temperatures can be elevated further by heat generated in by the tools themselves. Mud motors, for example, can generate additional heat during operation thereof. Materials used to fabricate the various components that make up the downhole tools are therefore carefully chosen for their ability to operate, often for long periods of time, in these extreme conditions.
- the mud motorincludes, a stator, a rotor in operable communication with the stator, a polymer in operable communication with the stator and the rotor, and a plurality of carbon nanotubes embedded in the polymer.
- the methodincludes, dissipating heat through the mud motor elastomer with carbon nanotubes embedded therein, and maintaining temperature of the mud motor elastomer below a threshold temperature.
- FIG. 1depicts a side view of a mud motor disclosed herein
- FIG. 2depicts a cross sectional view of the mud motor of FIG. 1 ;
- FIG. 3depicts a cross sectional view of the mud motor of FIG. 2 taken along arrows 3 - 3 .
- the mud motor 10includes, a stator 14 , a rotor 18 and a polymer 22 , also referred to herein as an elastomer, positioned between the stator 14 and the rotor 18 .
- Mud 26pumped through the mud motor 10 flows through cavities 30 defined by clearances between lobes 34 of the stator 14 and the elastomer 22 and lobes 38 of the rotor 18 .
- the mud 26being pumped through the cavities 30 , causes the rotor 18 to rotate relative to the stator 14 and the elastomer 22 .
- the elastomer 22is sealingly engaged with both the stator 14 and the rotor 18 to minimize leakage therebetween that could have a detrimental effect on the performance and efficiency of the mud motor 10 .
- the elastomer 22of embodiments disclosed herein, has carbon nanotubes 42 (CNT) embedded therein to increase heat transfer through the elastomer 22 and into the stator 14 , the rotor 18 and the mud 26 .
- the increased heat transfer, provided by the carbon nanotubes 42permits temperatures of the elastomer 22 to more quickly adjust toward temperatures of matter contacting the elastomer 22 than would occur if the carbon nanotubes 42 were not present.
- the operating temperature of the elastomer 22can affect the durability of the elastomer 22 .
- the relationshipis such that the durability of the elastomer 22 reduces as the temperature increases.
- temperature thresholdsexist, for specific materials, that when exceeded will significantly reduce the life of the elastomer 22 .
- the elevated operating temperatures of the mud motor 10are due, in part, to the high temperatures of the downhole environment in which the mud motor 10 operates. Additional temperature elevation, beyond that of the environment, is due to such things as, frictional engagement of the elastomer with one or more of the stator 14 , the rotor 18 and the mud 26 , and to hysteresis energy, in the form of heat, developed in the elastomer 22 during operation of the mud motor 10 , for example. This hysteresis energy comes from the difference in energy required to deform the elastomer 22 and the energy recovered from the elastomer 22 as the deformation is released.
- the hysteresis energygenerates heat in the elastomer 22 , called heat build-up. It is these additional sources of heat generation within the elastomer 22 that the addition of the nanotubes 42 to the elastomer 22 , as disclosed herein, is added to mitigate.
- Embodiments disclosed hereinallow an increase in power density of a mud motor 10 by, for example, having a smaller overall mud motor 10 that produces the same amount of output energy to a bit 50 , attached thereto, without resulting in increased temperature of the elastomer 22 . Additionally, the mud motor 10 , using embodiments disclosed herein, may be able to operate at higher pressures, without leakage between the elastomer 22 and the rotor 18 , thereby leading to higher overall motor efficiencies, for example.
- the carbon nanotubes 42are embedded in the elastomer 22 , such that, the carbon nanotubes 42 interface with a surface 54 of the elastomer 22 . Having the carbon nanotubes 42 interface with the surface 54 allows a decrease frictional engagement to exist between the elastomer 22 and matter that comes into contact with the surface 54 , such as, the rotor 18 and the mud 26 , for example. Such a decrease in friction can result in a corresponding decrease in heat generation. Additionally, in embodiments of the invention, the presence of the carbon nanotubes 42 , embedded within the elastomer 22 , decrease the hysteresis energy and heat generation resulting therefrom.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
- Downhole tools used in the hydrocarbon recovery industry often experience extreme conditions, such as, high temperatures and high pressures, for example. These high temperatures can be elevated further by heat generated in by the tools themselves. Mud motors, for example, can generate additional heat during operation thereof. Materials used to fabricate the various components that make up the downhole tools are therefore carefully chosen for their ability to operate, often for long periods of time, in these extreme conditions.
- Many polymeric materials have maximum operating temperature ranges, that when exceeded, result in early failure of components made therefrom. Advancements in the field that allow tools to operate below these temperature ranges are well received in the art.
- Disclosed herein is a downhole mud motor. The mud motor includes, a stator, a rotor in operable communication with the stator, a polymer in operable communication with the stator and the rotor, and a plurality of carbon nanotubes embedded in the polymer.
- Further disclosed herein is a method of improving durability of a mud motor elastomer. The method includes, dissipating heat through the mud motor elastomer with carbon nanotubes embedded therein, and maintaining temperature of the mud motor elastomer below a threshold temperature.
- The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:
FIG. 1 depicts a side view of a mud motor disclosed herein;FIG. 2 depicts a cross sectional view of the mud motor ofFIG. 1 ; andFIG. 3 depicts a cross sectional view of the mud motor ofFIG. 2 taken along arrows3-3.- 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
FIGS. 1-3 , an embodiment of adownhole mud motor 10 disclosed herein is illustrated. Themud motor 10, among other things, includes, astator 14, arotor 18 and apolymer 22, also referred to herein as an elastomer, positioned between thestator 14 and therotor 18.Mud 26, pumped through themud motor 10 flows throughcavities 30 defined by clearances betweenlobes 34 of thestator 14 and theelastomer 22 andlobes 38 of therotor 18. Themud 26, being pumped through thecavities 30, causes therotor 18 to rotate relative to thestator 14 and theelastomer 22. Theelastomer 22 is sealingly engaged with both thestator 14 and therotor 18 to minimize leakage therebetween that could have a detrimental effect on the performance and efficiency of themud motor 10. Theelastomer 22, of embodiments disclosed herein, has carbon nanotubes42 (CNT) embedded therein to increase heat transfer through theelastomer 22 and into thestator 14, therotor 18 and themud 26. The increased heat transfer, provided by thecarbon nanotubes 42, permits temperatures of theelastomer 22 to more quickly adjust toward temperatures of matter contacting theelastomer 22 than would occur if thecarbon nanotubes 42 were not present. - The operating temperature of the
elastomer 22 can affect the durability of theelastomer 22. Typically, the relationship is such that the durability of theelastomer 22 reduces as the temperature increases. Additionally, temperature thresholds exist, for specific materials, that when exceeded will significantly reduce the life of theelastomer 22. - The elevated operating temperatures of the
mud motor 10 are due, in part, to the high temperatures of the downhole environment in which themud motor 10 operates. Additional temperature elevation, beyond that of the environment, is due to such things as, frictional engagement of the elastomer with one or more of thestator 14, therotor 18 and themud 26, and to hysteresis energy, in the form of heat, developed in theelastomer 22 during operation of themud motor 10, for example. This hysteresis energy comes from the difference in energy required to deform theelastomer 22 and the energy recovered from theelastomer 22 as the deformation is released. The hysteresis energy generates heat in theelastomer 22, called heat build-up. It is these additional sources of heat generation within theelastomer 22 that the addition of thenanotubes 42 to theelastomer 22, as disclosed herein, is added to mitigate. - Several parameters effect the additional heat generation, such as, the amount of dimensional deformation that the
elastomer 22 undergoes during operation, the frictional engagement between theelastomer 22 and therotor 18 and anoverall length 46 of themud motor 10, for example. Additional heat generation may be reduced with specific settings of these parameters, and the temperature of theelastomer 22 may be maintainable below specific threshold temperatures. Such settings of the parameters, however, may adversely affect the performance and efficiency of themud motor 10, for example, by allowing more leakage therethrough, as well as increase operational and material costs associated therewith. Embodiments disclosed herein allow an increase in power density of amud motor 10 by, for example, having a smalleroverall mud motor 10 that produces the same amount of output energy to abit 50, attached thereto, without resulting in increased temperature of theelastomer 22. Additionally, themud motor 10, using embodiments disclosed herein, may be able to operate at higher pressures, without leakage between theelastomer 22 and therotor 18, thereby leading to higher overall motor efficiencies, for example. - The
carbon nanotubes 42, disclosed in embodiments herein, are embedded in theelastomer 22, such that, thecarbon nanotubes 42 interface with asurface 54 of theelastomer 22. Having thecarbon nanotubes 42 interface with thesurface 54 allows a decrease frictional engagement to exist between theelastomer 22 and matter that comes into contact with thesurface 54, such as, therotor 18 and themud 26, for example. Such a decrease in friction can result in a corresponding decrease in heat generation. Additionally, in embodiments of the invention, the presence of thecarbon nanotubes 42, embedded within theelastomer 22, decrease the hysteresis energy and heat generation resulting therefrom. - 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. Moreover, the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another. Furthermore, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
Claims (14)
1. A downhole mud motor, comprising
a stator;
a rotor in operable communication with the stator; and
a plurality of carbon nanotubes embedded in at least a portion of the stator.
2. The downhole mud motor ofclaim 1 , wherein the stator includes a polymer.
3. The downhole mud motor ofclaim 2 , wherein the polymer is positioned between the stator and the rotor.
4. The downhole mud motor ofclaim 2 , wherein the plurality of carbon nanotubes are configured to increase heat transfer through the polymer.
5. The downhole mud motor ofclaim 2 , wherein the plurality of carbon nanotubes are configured to increase heat transfer from the polymer to matter that comes into contact therewith.
6. The downhole mud motor ofclaim 2 , wherein the plurality of carbon nanotubes interface with a surface of the polymer to reduce friction between the polymer and matter engagable therewith.
7. The downhole mud motor ofclaim 2 , wherein the plurality of carbon nanotubes decreases heat generated related to deformation of the polymer.
8. The downhole mud motor ofclaim 1 , wherein the plurality of carbon nanotubes allows the downhole mud motor to have a greater power density.
9. A method of improving durability of a mud motor stator, comprising:
dissipating heat through the mud motor stator with carbon nanotubes embedded in at least a portion of the stator; and
maintaining temperature of the mud motor stator below a threshold temperature.
10. The method of improving durability of a mud motor stator ofclaim 9 , further comprising:
interfacing a surface of at least a portion of the mud motor stator with the carbon nanotubes; and
decreasing friction between the surface and matter in contact therewith.
11. The method of improving durability of a mud motor stator ofclaim 9 , further comprising decreasing heat generated in relation to deformation of at least a portion of the mud motor stator with the carbon nanotubes embedded therein.
12. The method of improving durability of a mud motor elastomer ofclaim 9 , wherein the at least a portion of the stator is an elastomer.
13. The downhole mud motor ofclaim 2 , wherein the carbon nanotubes are embedded in the polymer.
14. The downhole mud motor ofclaim 2 , wherein the polymer is an elastomer.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/264,591US20100108393A1 (en) | 2008-11-04 | 2008-11-04 | Downhole mud motor and method of improving durabilty thereof |
| PCT/US2009/063243WO2010053968A2 (en) | 2008-11-04 | 2009-11-04 | Downhole mud motor and method of improving durability thereof |
| GB1108073AGB2477665A (en) | 2008-11-04 | 2009-11-04 | Downhole mud motor and method of improving durability thereof |
| BRPI0921648ABRPI0921648A2 (en) | 2008-11-04 | 2009-11-04 | downhole mud motor and method to improve durability |
| US13/107,062US20120118647A1 (en) | 2008-11-04 | 2011-05-13 | Downhole mud motor and method of improving durabilty thereof |
| NO20110735ANO20110735A1 (en) | 2008-11-04 | 2011-05-19 | Drill bit motor and method for improving its durability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/264,591US20100108393A1 (en) | 2008-11-04 | 2008-11-04 | Downhole mud motor and method of improving durabilty thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/107,062Continuation-In-PartUS20120118647A1 (en) | 2008-11-04 | 2011-05-13 | Downhole mud motor and method of improving durabilty thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20100108393A1true US20100108393A1 (en) | 2010-05-06 |
Family
ID=42130051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/264,591AbandonedUS20100108393A1 (en) | 2008-11-04 | 2008-11-04 | Downhole mud motor and method of improving durabilty thereof |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100108393A1 (en) |
| BR (1) | BRPI0921648A2 (en) |
| GB (1) | GB2477665A (en) |
| NO (1) | NO20110735A1 (en) |
| WO (1) | WO2010053968A2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090152009A1 (en)* | 2007-12-18 | 2009-06-18 | Halliburton Energy Services, Inc., A Delaware Corporation | Nano particle reinforced polymer element for stator and rotor assembly |
| US8746375B2 (en) | 2011-05-19 | 2014-06-10 | Baker Hughes Incorporated | Wellbore tools having superhydrophobic surfaces, components of such tools, and related methods |
| US8919461B2 (en) | 2010-07-21 | 2014-12-30 | Baker Hughes Incorporated | Well tool having a nanoparticle reinforced metallic coating |
| US9340854B2 (en) | 2011-07-13 | 2016-05-17 | Baker Hughes Incorporated | Downhole motor with diamond-like carbon coating on stator and/or rotor and method of making said downhole motor |
| US9441627B2 (en) | 2012-11-01 | 2016-09-13 | National Oilwell Varco, L.P. | Lightweight and flexible rotors for positive displacement devices |
| US11053740B2 (en) | 2014-12-30 | 2021-07-06 | Halliburton Energy Services, Inc. | Downhole tool surfaces configured to reduce drag forces and erosion during exposure to fluid flow |
| US11619112B2 (en) | 2018-10-22 | 2023-04-04 | Halliburton Energy Services, Inc. | Rotating cutter apparatus for reducing the size of solid objects in a fluid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3201419A1 (en) | 2014-12-19 | 2017-08-09 | Halliburton Energy Services, Inc. | Eliminating threaded lower mud motor housing connections |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030096104A1 (en)* | 2001-03-15 | 2003-05-22 | Polymatech Co., Ltd. | Carbon nanotube complex molded body and the method of making the same |
| US20050109502A1 (en)* | 2003-11-20 | 2005-05-26 | Jeremy Buc Slay | Downhole seal element formed from a nanocomposite material |
| US20070142547A1 (en)* | 2005-12-16 | 2007-06-21 | Schlumberger Technology Corporation | Polymeric Composites, Oilfield Elements Comprising Same, and Methods of Using Same in Oilfield Applications |
| US20070259994A1 (en)* | 2003-06-23 | 2007-11-08 | William Marsh Rice University | Elastomers Reinforced with Carbon Nanotubes |
| US7517202B2 (en)* | 2005-01-12 | 2009-04-14 | Smith International, Inc. | Multiple elastomer layer progressing cavity stators |
| US20090142594A1 (en)* | 2007-12-03 | 2009-06-04 | Schlumberger Technology Corporation | Erosion resistant surface and method of making erosion resistant surfaces |
| US20090152009A1 (en)* | 2007-12-18 | 2009-06-18 | Halliburton Energy Services, Inc., A Delaware Corporation | Nano particle reinforced polymer element for stator and rotor assembly |
| US20100038142A1 (en)* | 2007-12-18 | 2010-02-18 | Halliburton Energy Services, Inc. | Apparatus and method for high temperature drilling operations |
| US20100098569A1 (en)* | 2007-12-18 | 2010-04-22 | Schlumberger Technology Corporation | Nanocomposite moineau device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6183226B1 (en)* | 1986-04-24 | 2001-02-06 | Steven M. Wood | Progressive cavity motors using composite materials |
| US6881045B2 (en)* | 2003-06-19 | 2005-04-19 | Robbins & Myers Energy Systems, L.P. | Progressive cavity pump/motor |
| GB2424452B (en)* | 2005-03-22 | 2011-01-19 | Schlumberger Holdings | Progressive cavity motor with rotor having an elastomer sleeve |
- 2008
- 2008-11-04USUS12/264,591patent/US20100108393A1/ennot_activeAbandoned
- 2009
- 2009-11-04WOPCT/US2009/063243patent/WO2010053968A2/enactiveApplication Filing
- 2009-11-04BRBRPI0921648Apatent/BRPI0921648A2/ennot_activeApplication Discontinuation
- 2009-11-04GBGB1108073Apatent/GB2477665A/ennot_activeWithdrawn
- 2011
- 2011-05-19NONO20110735Apatent/NO20110735A1/ennot_activeApplication Discontinuation
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030096104A1 (en)* | 2001-03-15 | 2003-05-22 | Polymatech Co., Ltd. | Carbon nanotube complex molded body and the method of making the same |
| US20070259994A1 (en)* | 2003-06-23 | 2007-11-08 | William Marsh Rice University | Elastomers Reinforced with Carbon Nanotubes |
| US20050109502A1 (en)* | 2003-11-20 | 2005-05-26 | Jeremy Buc Slay | Downhole seal element formed from a nanocomposite material |
| US20080121436A1 (en)* | 2003-11-20 | 2008-05-29 | Halliburton Energy Services, Inc. | Downhole seal element formed from a nanocomposite material |
| US7696275B2 (en)* | 2003-11-20 | 2010-04-13 | Halliburton Energy Services, Inc. | Downhole seal element formed from a nanocomposite material |
| US7517202B2 (en)* | 2005-01-12 | 2009-04-14 | Smith International, Inc. | Multiple elastomer layer progressing cavity stators |
| US20070142547A1 (en)* | 2005-12-16 | 2007-06-21 | Schlumberger Technology Corporation | Polymeric Composites, Oilfield Elements Comprising Same, and Methods of Using Same in Oilfield Applications |
| US20090142594A1 (en)* | 2007-12-03 | 2009-06-04 | Schlumberger Technology Corporation | Erosion resistant surface and method of making erosion resistant surfaces |
| US20090152009A1 (en)* | 2007-12-18 | 2009-06-18 | Halliburton Energy Services, Inc., A Delaware Corporation | Nano particle reinforced polymer element for stator and rotor assembly |
| US20100038142A1 (en)* | 2007-12-18 | 2010-02-18 | Halliburton Energy Services, Inc. | Apparatus and method for high temperature drilling operations |
| US20100098569A1 (en)* | 2007-12-18 | 2010-04-22 | Schlumberger Technology Corporation | Nanocomposite moineau device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090152009A1 (en)* | 2007-12-18 | 2009-06-18 | Halliburton Energy Services, Inc., A Delaware Corporation | Nano particle reinforced polymer element for stator and rotor assembly |
| US8919461B2 (en) | 2010-07-21 | 2014-12-30 | Baker Hughes Incorporated | Well tool having a nanoparticle reinforced metallic coating |
| US8746375B2 (en) | 2011-05-19 | 2014-06-10 | Baker Hughes Incorporated | Wellbore tools having superhydrophobic surfaces, components of such tools, and related methods |
| US9340854B2 (en) | 2011-07-13 | 2016-05-17 | Baker Hughes Incorporated | Downhole motor with diamond-like carbon coating on stator and/or rotor and method of making said downhole motor |
| US9441627B2 (en) | 2012-11-01 | 2016-09-13 | National Oilwell Varco, L.P. | Lightweight and flexible rotors for positive displacement devices |
| US11053740B2 (en) | 2014-12-30 | 2021-07-06 | Halliburton Energy Services, Inc. | Downhole tool surfaces configured to reduce drag forces and erosion during exposure to fluid flow |
| US11619112B2 (en) | 2018-10-22 | 2023-04-04 | Halliburton Energy Services, Inc. | Rotating cutter apparatus for reducing the size of solid objects in a fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0921648A2 (en) | 2016-02-10 |
| WO2010053968A2 (en) | 2010-05-14 |
| GB2477665A (en) | 2011-08-10 |
| GB201108073D0 (en) | 2011-06-29 |
| WO2010053968A3 (en) | 2010-08-12 |
| NO20110735A1 (en) | 2011-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100108393A1 (en) | Downhole mud motor and method of improving durabilty thereof | |
| US10767647B2 (en) | Graphene enhanced elastomeric stator | |
| US11821288B2 (en) | Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools | |
| US20120118647A1 (en) | Downhole mud motor and method of improving durabilty thereof | |
| EP1785648A3 (en) | Shaft sealing mechanism | |
| US8919461B2 (en) | Well tool having a nanoparticle reinforced metallic coating | |
| GB2519238A (en) | Rotary pulser and method for transmitting information to the surface from a drill string down hole in a well | |
| WO2008128543A3 (en) | Stroker tool | |
| US11441369B2 (en) | Fluid coupling drive system for a drill rig air compressor | |
| US10465695B2 (en) | Thrust washer and diffuser for use in a downhole electrical submersible pump | |
| US20230313794A1 (en) | System and methodology comprising composite stator for low flow electric submersible progressive cavity pump | |
| CN106030018B (en) | Hydraulic tool and correlation technique including insertion piece | |
| CN111774608B (en) | Electric drill with dust removal function | |
| CN104790876A (en) | Petroleum drilling oscillator | |
| US10968918B2 (en) | Wear rings for electric submersible pump stages | |
| CN108368726B (en) | Hydraulic tool including removable coating, drilling system, and methods of making and using hydraulic tool | |
| US20080050249A1 (en) | Progressive vortex pump | |
| US9151340B1 (en) | Clutch with auto-stop | |
| CN105745476A (en) | Shaft seal and method for manufacturing a shaft seal | |
| WO2013180560A2 (en) | Downhole screw motor | |
| ATE504721T1 (en) | ROTARY MACHINE | |
| CN103216623B (en) | Method for improving graphite seal life based on SMA (Shape Memory Alloy) constant force spring | |
| CN205064269U (en) | Vacuum pump blade and vacuum pump that contain spring | |
| CN203892193U (en) | Driving structure, vacuum pump with same and engine | |
| CN101418859A (en) | Dry friction proof outer-mounted clutch type mechanical seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment | Owner name:BAKER HUGHES INCORPORATED,TEXAS Free format text:ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHN, HENDRIK;KRUEGER, VOLKER;JUNG, THOMAS;AND OTHERS;SIGNING DATES FROM 20081118 TO 20081128;REEL/FRAME:021934/0877 | |
| STCB | Information on status: application discontinuation | Free format text:ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |