MX342232B - Cojinetes para herramientas de fondo de pozo, herramientas de fondo de pozo que incorporan tales cojinetes, y metodos de enfriamiento para tales cojinetes. - Google Patents
Cojinetes para herramientas de fondo de pozo, herramientas de fondo de pozo que incorporan tales cojinetes, y metodos de enfriamiento para tales cojinetes.Info
- Publication number
- MX342232B MX342232B MX2013003700A MX2013003700A MX342232B MX 342232 B MX342232 B MX 342232B MX 2013003700 A MX2013003700 A MX 2013003700A MX 2013003700 A MX2013003700 A MX 2013003700A MX 342232 B MX342232 B MX 342232B
- Authority
- MX
- Mexico
- Prior art keywords
- bearings
- downhole tools
- methods
- cooling
- bearing member
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 3
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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/23—Roller bits characterised by bearing, lubrication or sealing details with drilling fluid supply to the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49643—Rotary bearing
- Y10T29/49679—Anti-friction bearing or component thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (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)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Cojinetes para herramientas del fondo de la perforación que incluyen un primer miembro de cojinete y un segundo miembro de cojinete, en por lo menos uno del primer y segundo miembros de cojinete que tienen un canal formado en los mismos. Métodos de enfriamiento de cojinete de herramienta del fondo de la perforación comprenden hacer fluir un fluido dentro de un canal formado en por lo menos un miembro de cojinete. El calor se transfiere desde al menos el por lo menos un miembro de cojinete al fluido. El fluido fluye lejos de por lo menos un miembro de cojinete.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38899810P | 2010-10-01 | 2010-10-01 | |
PCT/US2011/054293 WO2012044973A2 (en) | 2010-10-01 | 2011-09-30 | Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2013003700A MX2013003700A (es) | 2014-04-14 |
MX342232B true MX342232B (es) | 2016-09-21 |
Family
ID=45888821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2013003700A MX342232B (es) | 2010-10-01 | 2011-09-30 | Cojinetes para herramientas de fondo de pozo, herramientas de fondo de pozo que incorporan tales cojinetes, y metodos de enfriamiento para tales cojinetes. |
Country Status (11)
Country | Link |
---|---|
US (2) | US8834026B2 (es) |
EP (1) | EP2622167A4 (es) |
CN (1) | CN103221628B (es) |
BR (1) | BR112013007826B1 (es) |
CA (1) | CA2813446C (es) |
MX (1) | MX342232B (es) |
RU (1) | RU2580540C2 (es) |
SA (1) | SA111320802B1 (es) |
SG (1) | SG189178A1 (es) |
WO (1) | WO2012044973A2 (es) |
ZA (1) | ZA201302613B (es) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9574405B2 (en) | 2005-09-21 | 2017-02-21 | Smith International, Inc. | Hybrid disc bit with optimized PDC cutter placement |
US8672060B2 (en) * | 2009-07-31 | 2014-03-18 | Smith International, Inc. | High shear roller cone drill bits |
CN103221628B (zh) | 2010-10-01 | 2016-03-16 | 贝克休斯公司 | 井下工具的轴承、结合有这种轴承的井下工具以及冷却这种轴承的方法 |
US9909365B2 (en) * | 2011-04-29 | 2018-03-06 | Baker Hughes Incorporated | Downhole tools having mechanical joints with enhanced surfaces |
US8672550B1 (en) | 2011-08-19 | 2014-03-18 | Us Synthetic Corporation | Cooling-enhanced bearing assemblies, apparatuses, and motor assemblies using the same |
US10260560B2 (en) * | 2013-12-04 | 2019-04-16 | Us Synthetic Corporation | Compact bearing assemblies including superhard bearing surfaces, bearing apparatuses, and methods of use |
US9657528B2 (en) * | 2014-10-28 | 2017-05-23 | PDB Tools, Inc. | Flow bypass compensator for sealed bearing drill bits |
CA3008841A1 (en) * | 2015-12-18 | 2017-06-22 | National Oilwell Varco, L.P. | Microfluidic-assisted hydrodynamic lubrication system and method |
US10538967B2 (en) | 2015-12-30 | 2020-01-21 | Halliburton Energy Services, Inc. | Bearing assembly for drilling a subterranean formation |
US10718374B2 (en) * | 2016-08-29 | 2020-07-21 | Halliburton Energy Services, Inc. | Stabilizers and bearings for extreme wear applications |
RU2634676C1 (ru) * | 2016-10-19 | 2017-11-02 | Андрей Георгиевич Ищук | Опора бурового шарошечного долота |
RU2655065C1 (ru) * | 2016-12-07 | 2018-05-23 | Производственно-торговое общество с ограниченной ответственностью "АГРОСТРОЙ" | Подшипниковая опора шарошки бурового долота |
RU2654902C1 (ru) * | 2017-02-02 | 2018-05-23 | Производственно-торговое общество с ограниченной ответственностью "АГРОСТРОЙ" | Опора шарошки бурового долота |
US10941779B2 (en) * | 2017-04-07 | 2021-03-09 | Baker Hughes, A Ge Company, Llc | Abrasion resistant inserts in centrifugal well pump stages |
RU2670456C1 (ru) * | 2017-11-21 | 2018-10-23 | Дмитрий Юрьевич Сериков | Опора бурового долота |
US11098541B2 (en) * | 2018-03-16 | 2021-08-24 | Ulterra Drilling Technologies, L.P. | Polycrystalline-diamond compact air bit |
US10363786B1 (en) * | 2018-03-23 | 2019-07-30 | Federal-Mogul Motorparts Llc | Ball socket assembly with a low friction bearing |
US11268570B2 (en) * | 2018-06-19 | 2022-03-08 | Us Synthetic Corporation | Bearing assemblies, related bearing apparatuses and related methods |
CN110984921B (zh) * | 2019-12-26 | 2021-10-29 | 东北石油大学 | 一种应用于低产井的人工举升装置及举升方法 |
US11111958B1 (en) * | 2020-03-03 | 2021-09-07 | Schaeffler Technologies AG & Co. KG | Hydrodynamic bearing |
Family Cites Families (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1890887A (en) * | 1929-06-26 | 1932-12-13 | Chicago Pneumatic Tool Co | Earth boring apparatus |
US2272128A (en) * | 1940-11-28 | 1942-02-03 | Osbourne Alan | Marine propeller |
US3476446A (en) * | 1967-06-08 | 1969-11-04 | Smith International | Rock bit and bearing |
US4141605A (en) * | 1976-07-02 | 1979-02-27 | Eastman Whipstock, Inc. | Bearing |
US4151686A (en) | 1978-01-09 | 1979-05-01 | General Electric Company | Silicon carbide and silicon bonded polycrystalline diamond body and method of making it |
US4232912A (en) * | 1978-12-11 | 1980-11-11 | Dresser Industries, Inc. | Earth boring bit with gridded ferrous bearing surface |
US4386663A (en) * | 1981-02-25 | 1983-06-07 | Hughes Tool Company | Cooled journal bearing |
DE3150496A1 (de) * | 1981-12-19 | 1983-11-24 | Mannesmann AG, 4000 Düsseldorf | Oelfilmlager |
US4569601A (en) * | 1982-09-01 | 1986-02-11 | Dresser Industries, Inc. | Wound wire bearing |
US4511307A (en) | 1983-09-02 | 1985-04-16 | Dresser Industries, Inc. | Centrifugal pump |
SU1194990A1 (ru) * | 1983-11-23 | 1985-11-30 | Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности "Укргипрониинефть" | Секци бурового шарошечного долота и способ ее монтажа |
US4555186A (en) * | 1984-02-10 | 1985-11-26 | Dresser Industries, Inc. | Amorphous alloy plain bearings |
US4593776A (en) * | 1984-03-28 | 1986-06-10 | Smith International, Inc. | Rock bits having metallurgically bonded cutter inserts |
US4738322A (en) | 1984-12-21 | 1988-04-19 | Smith International Inc. | Polycrystalline diamond bearing system for a roller cone rock bit |
US4802539A (en) | 1984-12-21 | 1989-02-07 | Smith International, Inc. | Polycrystalline diamond bearing system for a roller cone rock bit |
US4620803A (en) * | 1985-07-26 | 1986-11-04 | Edward Vezirian | Friction bearing couple |
JPH0647991B2 (ja) * | 1986-05-15 | 1994-06-22 | 三菱電機株式会社 | スクロ−ル圧縮機 |
DE3687798T2 (de) | 1986-05-19 | 1993-08-05 | Smith International | Kuehlnetzwerke fuer lagerflaechen aus polykristallinem diamant. |
DE3619828A1 (de) * | 1986-06-12 | 1987-12-17 | Rothemuehle Brandt Kritzler | Axialdruck- bzw. -traglager, insbesondere fuer langsam drehende maschinen |
US4732491A (en) | 1986-08-27 | 1988-03-22 | Smith International, Inc. | Downhole motor bearing assembly |
SU1539305A1 (ru) * | 1987-02-19 | 1990-01-30 | Научно-производственное объединение "Техника и технология добычи нефти" | Шарошечное долото |
US4764036A (en) | 1987-05-14 | 1988-08-16 | Smith International, Inc. | PCD enhanced radial bearing |
US4756631A (en) | 1987-07-24 | 1988-07-12 | Smith International, Inc. | Diamond bearing for high-speed drag bits |
US4875532A (en) | 1988-09-19 | 1989-10-24 | Dresser Industries, Inc. | Roller drill bit having radial-thrust pilot bushing incorporating anti-galling material |
US5112188A (en) | 1991-01-25 | 1992-05-12 | Barnetche Gonzalez Eduardo | Multiple stage drag and dynamic turbine downhole motor |
US5133639A (en) | 1991-03-19 | 1992-07-28 | Sta-Rite Industries, Inc. | Bearing arrangement for centrifugal pump |
RU2068069C1 (ru) * | 1991-05-15 | 1996-10-20 | Восточно-Сибирский научно-исследовательский институт геологии, геофизики и минерального сырья | Опора шарошечного долота |
US5092687A (en) | 1991-06-04 | 1992-03-03 | Anadrill, Inc. | Diamond thrust bearing and method for manufacturing same |
AU675106B2 (en) | 1993-03-26 | 1997-01-23 | De Beers Industrial Diamond Division (Proprietary) Limited | Bearing assembly |
US6068070A (en) | 1997-09-03 | 2000-05-30 | Baker Hughes Incorporated | Diamond enhanced bearing for earth-boring bit |
US5679894A (en) | 1993-05-12 | 1997-10-21 | Baker Hughes Incorporated | Apparatus and method for drilling boreholes |
CN1110764A (zh) | 1994-11-19 | 1995-10-25 | 韩玉亮 | 多级泵轴向力平衡装置 |
US5593231A (en) * | 1995-01-17 | 1997-01-14 | Dresser Industries, Inc. | Hydrodynamic bearing |
US5655611A (en) * | 1995-08-04 | 1997-08-12 | Baker Hughes Inc. | Earth-boring bit with improved bearing seal |
US6543132B1 (en) | 1997-12-18 | 2003-04-08 | Baker Hughes Incorporated | Methods of making mud motors |
US6260635B1 (en) * | 1998-01-26 | 2001-07-17 | Dresser Industries, Inc. | Rotary cone drill bit with enhanced journal bushing |
US6190050B1 (en) | 1999-06-22 | 2001-02-20 | Camco International, Inc. | System and method for preparing wear-resistant bearing surfaces |
KR100310444B1 (ko) * | 1999-06-25 | 2001-09-29 | 이충전 | 밀폐형 왕복동 압축기의 주축베어링 윤활장치 |
US6280089B1 (en) * | 1999-07-15 | 2001-08-28 | Sunonwealth Electric Machine Industry Co., Ltd. | Rotational shaft for a non-ball type bearing |
US6460635B1 (en) * | 1999-10-25 | 2002-10-08 | Kalsi Engineering, Inc. | Load responsive hydrodynamic bearing |
RU14621U1 (ru) * | 2000-02-01 | 2000-08-10 | Открытое акционерное общество "ГАЗ" | Подшипник скольжения |
US6454027B1 (en) | 2000-03-09 | 2002-09-24 | Smith International, Inc. | Polycrystalline diamond carbide composites |
JP2001295576A (ja) * | 2000-04-12 | 2001-10-26 | Japan National Oil Corp | ビット装置 |
US7492069B2 (en) | 2001-04-19 | 2009-02-17 | Baker Hughes Incorporated | Pressurized bearing system for submersible motor |
US20030035603A1 (en) * | 2001-08-15 | 2003-02-20 | V.W. Kaiser Engineering, Inc. | Thrust bushing for steering kingpin assembly |
US6684966B2 (en) * | 2001-10-18 | 2004-02-03 | Baker Hughes Incorporated | PCD face seal for earth-boring bit |
US6652147B2 (en) * | 2001-12-20 | 2003-11-25 | Sunonwealth Electric Machine Industry Co., Ltd. | Bearing structure |
JP4676700B2 (ja) | 2002-01-30 | 2011-04-27 | エレメント シックス (プロプライエタリイ)リミテッド | 研磨性層状圧粉体 |
US20040190804A1 (en) * | 2003-03-26 | 2004-09-30 | Baker Hughes Incorporated | Diamond bearing with cooling/lubrication channels |
CN2670577Y (zh) * | 2003-12-24 | 2005-01-12 | 江西省宜春飞龙钻头制造有限公司 | 一种钢球锁紧轴承结构牙轮钻头 |
SE530135C2 (sv) | 2004-09-21 | 2008-03-11 | Sandvik Intellectual Property | Bergborrkrona anpassad för slående borrning |
US20070151769A1 (en) | 2005-11-23 | 2007-07-05 | Smith International, Inc. | Microwave sintering |
CN101025076A (zh) * | 2006-02-21 | 2007-08-29 | 霍利贝顿能源服务公司 | 具有增强岩屑导流槽的牙轮钻头 |
US7703559B2 (en) | 2006-05-30 | 2010-04-27 | Smith International, Inc. | Rolling cutter |
RU2008151728A (ru) * | 2006-06-09 | 2010-07-20 | Бейкер Хьюз Инкорпорейтед (Us) | Поверхностные текстуры для буровых долот |
US7648332B2 (en) | 2006-08-30 | 2010-01-19 | Schlumberger Technology Corporation | System and method for reducing thrust acting on submersible pumping components |
TWI345355B (en) * | 2007-06-11 | 2011-07-11 | Sunonwealth Electr Mach Ind Co | Bearing structure |
US7896551B2 (en) | 2007-10-15 | 2011-03-01 | Us Synthetic Corporation | Hydrodynamic bearing assemblies, and hydrodynamic bearing apparatuses and motor assemblies using same |
US20090205873A1 (en) | 2008-02-19 | 2009-08-20 | Baker Hughes Incorporated | Downhole tool bearing system containing diamond enhanced materials |
US20110024198A1 (en) | 2008-02-19 | 2011-02-03 | Baker Hughes Incorporated | Bearing systems containing diamond enhanced materials and downhole applications for same |
US8277124B2 (en) | 2009-02-27 | 2012-10-02 | Us Synthetic Corporation | Bearing apparatuses, systems including same, and related methods |
CN103221628B (zh) | 2010-10-01 | 2016-03-16 | 贝克休斯公司 | 井下工具的轴承、结合有这种轴承的井下工具以及冷却这种轴承的方法 |
-
2011
- 2011-09-30 CN CN201180055137.1A patent/CN103221628B/zh active Active
- 2011-09-30 RU RU2013120095/03A patent/RU2580540C2/ru active
- 2011-09-30 US US13/250,335 patent/US8834026B2/en active Active
- 2011-09-30 MX MX2013003700A patent/MX342232B/es active IP Right Grant
- 2011-09-30 BR BR112013007826-0A patent/BR112013007826B1/pt active IP Right Grant
- 2011-09-30 SG SG2013023817A patent/SG189178A1/en unknown
- 2011-09-30 EP EP11829990.8A patent/EP2622167A4/en not_active Withdrawn
- 2011-09-30 CA CA2813446A patent/CA2813446C/en not_active Expired - Fee Related
- 2011-09-30 WO PCT/US2011/054293 patent/WO2012044973A2/en active Application Filing
- 2011-10-01 SA SA111320802A patent/SA111320802B1/ar unknown
-
2013
- 2013-04-11 ZA ZA2013/02613A patent/ZA201302613B/en unknown
-
2014
- 2014-06-23 US US14/312,080 patent/US9290997B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120080230A1 (en) | 2012-04-05 |
RU2580540C2 (ru) | 2016-04-10 |
SA111320802B1 (ar) | 2014-11-20 |
ZA201302613B (en) | 2014-10-29 |
BR112013007826A2 (pt) | 2016-06-21 |
MX2013003700A (es) | 2014-04-14 |
EP2622167A4 (en) | 2017-03-22 |
WO2012044973A3 (en) | 2012-07-19 |
CN103221628A (zh) | 2013-07-24 |
WO2012044973A2 (en) | 2012-04-05 |
CN103221628B (zh) | 2016-03-16 |
CA2813446C (en) | 2016-08-16 |
US8834026B2 (en) | 2014-09-16 |
US9290997B2 (en) | 2016-03-22 |
US20140301679A1 (en) | 2014-10-09 |
CA2813446A1 (en) | 2012-04-05 |
SG189178A1 (en) | 2013-05-31 |
EP2622167A2 (en) | 2013-08-07 |
RU2013120095A (ru) | 2014-11-20 |
BR112013007826B1 (pt) | 2020-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX2013003700A (es) | Cojinetes para herramientas de fondo de pozo, herramientas de fondo de pozo que incorporan tales cojinetes, y metodos de enfriamiento para tales cojinetes. | |
BR112014016408A2 (pt) | método para perfuração em uma formação subterrânea, e, fluido de perfuração | |
BR112012028419A2 (pt) | composição de transferência de calor, sistema de refrigeração, método de substituição de um fluido de transferência de calor existente contido em sistema de transferência de calor, e sistema de transferência de calor. | |
MX2015011441A (es) | Lubricantes microbianos oleaginosos. | |
EP2818537A4 (en) | OIL COMPOSITION FOR REFRIGERATING MACHINES, PROCESS FOR PRODUCTION THEREOF, AND WORKING FLUID COMPOSITION FOR REFRIGERATORS | |
GB2515895A (en) | Systems and methods for continuous and near continuous drilling | |
GB201208586D0 (en) | A heat exchanger | |
EP2878652A4 (en) | LUBRICANT OIL, REFRIGERATOR OIL AND LIQUID COMPOSITION FOR REFRIGERATING MACHINES | |
GB2539356A (en) | Bearing assembly cooling methods | |
AR089973A1 (es) | Sistemas y metodos para la estimacion de tiempos de afloramiento de fluidos en sitios de pozos en produccion | |
BR112014001130A2 (pt) | aparelho, e métodos e sistemas pipe-in-pipe | |
MY170967A (en) | Subsea heat exchanger, cleaning tool and appurtenant method | |
MX2011012529A (es) | Metodo para enfriar un horno metalurgico. | |
MX360720B (es) | Composiciones para el mantenimiento de pozos y metodos de elaborarlas y usarlas. | |
PH12015500932A1 (en) | An energy saving fluid | |
PL2556322T3 (pl) | Wymiennik ciepła zintegrowany typu jednostrumieniowego i sposób schładzania oleju | |
GB2500339A (en) | Liquid ring heat engine | |
EP3088500B8 (en) | Working fluid composition for refrigerator, and refrigerator oil | |
GB2529077A (en) | Wellbore fluids comprising mineral particles and methods relating thereto | |
MX2015008866A (es) | Aparatos de maquinado de tubos y metodos para operar los mismos. | |
WO2013185006A8 (en) | Chemical compositions and methods of using same | |
SG10201606190WA (en) | Cooling and/or lubricating fluids for wafer production | |
EP2952293B8 (en) | Boring machine ram, boring machine and method for cooling the bearings of a ram in a boring machine | |
Ashrafi Khorasani et al. | Flow of Slurry in the Inclined Closed Channel | |
Takahashi et al. | Aerated flow characteristics in stepped channels for nonuniform flow region |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |