钻采设备国产十大品牌（国产钻攻中心十大牌子）

中国石油石化设备50强企业

石油济柴公司是石油系唯一的动力制造企业，是国内非道路用中高速中大功率柴油机和气体发动机的主要生产商，主导产品济柴牌发动机，广泛适用于石油钻探、工矿机车、工程机械、舰艇渔船及发电设备，是国家军工等要害领域和场合的重点选用产品。

中国机械类十强企业有哪些？

最新的2014中国机械类十强企业排名如下（按年度主营业务收入排序):中国机械工业集团有限公司潍柴控股集团有限公司上海电气（集团)总公司徐州工程机械集团有限公司三一集团有限公司中联重科股份有限公司盾安控股集团有限公司新疆特变电工集团有限公司中国东方电气集团有限公司广西玉柴机器集团有限公司

NOV（National Oilwell Varco）公司是目前全球最大的石油钻采设备供应商，有谁能详细解答NOV的成长历程？

国民油井华高是全球石油和天然气行业的领先供应商，140多年来一直致力于提供最高质量的油田产品和服务。国民油井华高是您所有钻机设备、集成系统、井下工具和供应链解决方案的单一来源。从一个备件到一个全面的钻井系统？从通用阀门到完全集成的供应链流程，国民油井华高为客户提供无限的解决方案。通过不断开发和获取新的技术和服务来更好地满足未来客户的需求，国民油井华高将继续成为全球多元化产品和服务的首要来源106 .国民油井Varco公司设计、制造和销售陆地和海上钻机的主要机械部件以及完整的陆地钻井和修井钻机。主要机械部件包括绞车、泥浆泵、动力转环、SCR系统、移动设备和转盘。该公司还设计和制造各种井下产品，包括钻井马达和用于租赁和销售的专用钻井工具106 .国民油井Varco公司还通过其分布在美国、加拿大以及全球主要钻井和生产活动附近的分销服务中心网络提供分销服务。在过去的140年里，国民油井华高通过不断增加产品和服务的广度和深度，已经成为40多个行业领先品牌的管理者。这些战略并购包括上游石油和天然气行业的一些领先企业，并使国民油井公司能够提供完整的产品线

of high-quality procts and solutions.　　History of Acquisitions　　1892 -　　"Oil Well Engineering" acquires Continental Tube Works in Pittsburgh　　1902 -　　National Supply "(National)" acquires California Supply　　1920 -　　National acquires Union Tool　　1928 -　　National purchases 1/2 interest in Oil Well Engineering　　1928 -　　National acquires Superior Engine Company　　1929 -　　Oilwell acquires Wilson-Snyder Manufacturing Corp of Pittsburgh　　1930 -　　United States Steel acquires Oil Well. Oil Well becomes the Oilwell Division　　1940 -　　National acquires Central Tube Company　　1944 -　　Oilwell Division acquires Witte Engine Works　　1945 -　　Oilwell Division acquires Neilsen Pump Company　　1975 -　　National Supply buys remaining shares of Oil Well Engineering　　1978 -　　National acquires PAR Instries　　1978 -　　National acquires Derrick Service Int"l　　1978 -　　National acquires Compressor Pump and Engine　　1979 -　　National acquires Baylor　　1979 -　　National acquires small oilfield services company in Oklahoma City and calls it National Chemicals　　1980 -　　National purchases assets in Grenco Corporation　　1981 -　　National Supply (Armco) acquires Equipetrol, S.A.　　1987 -　　National Supply merges with USS Oilwell　　1989 -　　National Oilwell acquires Mission　　1997 -　　National Oilwell acquired Ross Hill Controls　　1997 -　　National Oilwell acquired PEP, Inc.　　1997 -　　National Oilwell acquired Dreco Energy Services Ltd. (Canada)　　1998 -　　National Oilwell acquired Versatech International Ltd. (Canada)　　1998 -　　National Oilwell acquired Specialty Tools Ltd. (Scotland)　　1998 -　　National Oilwell acquired Phoenix Energy Procts (Harrisburg, Wooley, M&W;, CDI)　　1998 -　　National Oilwell acquired Roberds -Johnson Instries, Inc.　　1998 -　　National Oilwell acquired DOSCO (Canada)　　1999 -　　National Oilwell acquired Dupre’ Supply Company & Dupre’ International, Inc.　　1999 -　　National Oilwell acquired CE (Continental Emsco) Drilling Procts & Wilson Mobile Rig　　1999 -　　National Oilwell acquired Skytop Brewster Company　　2000 -　　National Oilwell acquired Republic Supply Company　　2000 -　　National Oilwell acquired Hitec ASA (Norway)　　2000 -　　National Oilwell acquired IRI International Corporation　　2000 -　　National Oilwell acquired Wheatley Gaso Omega　　2000 -　　National Oilwell acquired Baylor Company　　2000 -　　National Oilwell acquired Hart Sales Company　　2001 -　　National Oilwell acquired Maritime Hydraulics (Canada) Ltd.　　2001 -　　National Oilwell acquired DEMIJ (Rotterdam)　　2001 -　　National Oilwell acquired Tech Power Controls Co.　　2001 -　　National Oilwell acquired Rye Supply Company, Inc.　　2001 -　　National Oilwell acquired Texas Oil Works Supply, Inc.　　2001 -　　National Oilwell acquired HSI-Houston Scientific International, Inc.　　2001 -　　National Oilwell acquired AMTEX Pump & Supply　　2001 -　　National Oilwell acquired Rigquip Division Assets (Noble Drilling U.K. Limited)　　2002 -　　National Oilwell acquired HAL Oilfield Pump & Equipment (HALCO)　　2002 -　　National Oilwell acquired Integrated Power Systems　　2002 -　　National Oilwell acquired STS Oilfield Specialty & Supply, L.L.C.　　2002 -　　National Oilwell acquired Hydralift ASA　　2003 -　　National Oilwell acquired LSI Specialty Electrical Procts　　2003 -　　National Oilwell acquired MonoFlo, Inc. (US) & Mono Group (UK)　　2003 -　　National Oilwell acquired Øgrey Mekaniske Verksted AS (Norway)　　2005 -　　National Oilwell merges with Varco becoming National Oilwell Varco　　Milestones　　1862 -　　John Eaton Company established to furnish oilfield equipment in Oil City, PA, and surrounding area.　　1867 -　　Original line of procts made in own shop, including bits, cable tools, temper screws, lers, bull wheels, derricks, etc.　　1869 -　　John Eaton and EH Cole joined to form Eaton and Cole to furnish oilfield equipment.　　1884 -　　Additional own-make procts, including: complete line of cable-tool drilling, fishing, and clean-out tools.　　1884 -　　Additional own-make procts, including: standard and portable rigs, including derricks, rig irons, steam engines.　　1884 -　　Additional own-make procts, including: casing and tubing elevators and tongs.　　1886 -　　Under-reamers.　　1892 -　　Complete all-steel drilling rig, including 72 ft. derrick, crown and traveling blocks, piston-valve twin- cylinder steam engines.　　1901 -　　Drawworks, swivels, bits.　　1904 -　　Portable all-steel drilling machines for cable-tool drilling .　　1907 -　　Rotary tables, portable all-steel drilling machines for rotary drilling.　　1911 -　　Steam driven slush pumps.　　1912 -　　"Mud Hog" and "Giant Mud Hog" series steam slush pumps.　　1913 -　　Union Tool Co. (later purchased by National Supply Co.) introced its first rotary table.　　1913 -　　Union Tool Co. (later purchased by National Supply Co.) made offset steel roller chain with replaceable steel pins and bushings.　　1916 -　　Power slush pumps.　　1918 -　　Designed and patented "Imperial" Rotary Swivel.　　1923 -　　Make-and-break rotary tables.　　1923 -　　Hild differential electric drives for rotary drilling.　　1926 -　　Long stroke (18") Wilson-Snyder Steam Slush Pump.　　1927 -　　Fully-enclosed roller-bearing twin-cylinder steam engines.　　1928 -　　Spang, Chalfant pioneered "Magna Glo" inspection to uncover cracks in pipe.　　1930 -　　Emsco developed a line of plex double acting slush (mud) pumps.　　1930 -　　National designed an improved band brake system for drawworks ("K" Brake) with increased leverage at optimum handle position.　　1930 -　　High pressure (350 psi working pressure) boilers.　　1930 -　　20" stroke steam slush pumps.　　1930 -　　Fully-enclosed oilbath rotaries.　　1933 -　　National started using "V" packing rings, coil spring, in wash pipe packing assemblies on rotary drilling swivels.　　1933 -　　Vertical twin-cylinder steam engines.　　1934 -　　Hydraulic feed controls for rotary drilling.　　1934 -　　Di-Hard slush pump liners.　　1935 -　　National introced its "C" line of power plex slush pumps, 1500 to 3000 PSI, with patented baffle chamber.　　1935 -　　National designed, developed, and made a new patented main bearing for rotary drilling swivels.　　1935 -　　Rotary drilling units (packaged unit providing independent drive to the rotary from a steam engine) .　　1936 -　　20" stroke power slush pumps.　　1939 -　　Rotary drilling unit with drive from internal combustion engine through hydraulic torque converter.　　1940 -　　National designed an improved 2-plate clutch for drawworks which was first installed on a 33-62-FE drawworks 1500 Hp steam driven.　　1940 -　　Triplex steam slush pumps.　　1941 -　　National furnished chain compounded sectional drive groups (as alternate to V-belt) to power drawworks, rotary, and mud pumps.　　1945 -　　Completely air controlled power rigs (drawworks and drives).　　1946 -　　National introced "Gammaloy" drill collars, as a less expensive nonmagnetic stainless steel to replace K-Monel material.　　1946 -　　Portable derricks.　　1947 -　　National Hydraulic Coupling introced as a fluid cushion connection between engines and drive group to absorb shock loads.　　1947 -　　National designed, developed, and made a new "Quick-Seal" hose connections for rotary swivel or standpipe goosenecks.　　1949 -　　National type "A" single stage Torque Converter, designed specifically for drilling rigs, introced for drive group compounds.　　1949 -　　Drilling depth record of 20,521 ft set at Rock Springs, Wyoming by a rig using National drilling equipment.　　1949 -　　Automatically regulated hydraulic feed controls for rotary drilling.　　1950 -　　National designed an improved drum type clutch for drawworks (Dy-A-Flex) with increased reliability and simpler to service.　　1951 -　　Introced overrunning clutch between drawworks drumshaft and auxiliary brake for mechanical rigs.　　1951 -　　National designed, developed, and made a new patented "Uniflex" wash pipe & packing box for rotary drilling swivels.　　1952 -　　Introced "Micromatic" drilling controls for drawworks to automatically feed off pipe as the hole is drilled.　　1953 -　　Drilling depth record of 21,482 ft set in Paloma Field, California by a rig using National drilling equipment.　　1953 -　　Extreme high horsepower, high pressure power slush pump for jet bit drilling.　　1955 -　　Hook blocks.　　1956 -　　National obtained patent on improved wash pipe for "Uniflex" wash pipe & packing box for rotary drilling swivels.　　1956 -　　National introced 2 step "Spirallel" integral drawworks drum grooving as an improvement for spooling wire rope onto the drum.　　1956 -　　Drilling depth record of 22,570 ft set by a drilling barge south of New Orleans using National drilling equipment.　　1958 -　　Triplex plunger mud pump unit w/2-speed transmission and direct connected engine for high pressure & slim hole drilling.　　1959 -　　Lever lift drilling masts.　　1959 -　　Inction-hardened steel slush pump liners.　　1959 -　　Swivels with quick removable wash pipes.　　1960 -　　Introced "Seal-Lock tubing, a premium threaded and coupled connection for deep wells.　　1962 -　　Introced a subsea christmas tree on a procing well in the Gulf of Mexico.　　1963 -　　Continental Emsco introced the Electrohoist II Drawworks.　　1964 -　　Furnished remotely installed well head in 600 ft water depth.　　1967 -　　Introced A37-1/2 Rotary.　　1968 -　　Introced a mechanical jacking system for offshore jack-up rigs featuring high efficiency lifting mechanism with opposed pinions.　　1968 -　　National"s first triplex mud pumps, model 10-P-130, rated for 1300 HP, are first used on a land rig.　　1969 -　　Continental Emsco introced the F1000 Triplex Mud Pump.　　1969 -　　Furnished an early subsea proction system in the Norwegian sector of the North Sea.　　1969 -　　Oilwell"s first triplex mud pumps, model 1400-PT, rated for 1400 HP, are shipped.　　1970 -　　Introced new line of Oilwell "PC" (Positive Centering) Swivels ranging from 100 to 650 tons capacity.　　1972 -　　Oilwell A1400-PT and A1700-PT single acting Triplex Slush (Mud) Pumps fitted with fluid ends for high volume application.　　1973 -　　Oilwell A49-1/2 Rotary for offshore drilling.　　1974 -　　Introced Oilwell 350-PT single acting triplex mud pumps designed for transport by air-lift.　　1977 -　　Kremco completes its first in-house designed workover rig, model K600.　　1977 -　　Dreco designs and constructs two covered bolted beam leg derricks.　　1978 -　　Dreco"s first originally designed drawworks, 400 HP, is designed and built by Glenn Knutson.　　1979 -　　Dreco builds its first 2.5 million lb mast and substructure.　　1979 -　　Dreco introces a new patented beam leg mast with special hinged back bracing for improved transporting on land rig moves.　　1980 -　　"Slingshot" substructure allowing installation of major components & raising of mast at ground level, before elevating substructure.　　1981 -　　Dreco develops proprietary designs for various drilling equipment, including rotary tables, traveling blocks, and triplex mud pumps.　　1981 -　　Dreco introces its "Superior" Drawworks models 700UE, 700M, and 1000UE at the OTC in Houston.　　1981 -　　Dreco introced the first 4,000 HP Drawworks on a land rig.　　1981 -　　Dreco introced the first Traveling Block rated for 1,250 tons.　　1982 -　　Dreco introced the first 156 ft "Slingshot" Mast and substructure rated for 2,500,000 lb, with 40 ft high drill floor, for a land rig.　　1983 -　　Dreco designs the "Sandmaster", a self-propelled workover/drilling rig for desert operations.　　1983 -　　Griffith introces a hydraulic/mechanical drilling jar to the Canadian oilpatch.　　1984 -　　Griffith designs and builds the "Torquemaster", a tool break-out machine which becomes a major proct line for Griffith.　　1985 -　　GH introced a new patented disc brake system designed for drawworks (design purchased by National in Jan 1987).　　1986 -　　Griffith designs and tests its first proprietary downhole steerable drilling motor, tradenamed "Trudril".　　1986 -　　Dreco develops a cantilevered arctic rig design featuring a sliding drill floor to permit the drilling of more wells from a smaller pad.　　1986 -　　Dreco introced a new BOP handling system powered by hydraulic cylinder operated wireline hoists.　　1987 -　　Dreco introces the "Kremcovets" prototype service rig at tradeshow in Moscow, which is a Kremco rig on a Soviet Kirovets tractor.　　1988 -　　Dreco introced a new patented capping beam "Gripper" system for horizontal jacking of rig substructures on offshore platforms.　　1990 -　　Continental Emsco shipped model FC-2200 Triplex Mud Pumps.　　1990 -　　National-Oilwell shipped model 14-P-200 Triplex Mud Pumps (later uprated to 2200 HP).　　1990 -　　National-Oilwell installed a PS-500 Top Drive, with patented rotating side skid, allowing it to swing out of tripping path in minutes.　　1992 -　　Dreco introced a new "Lift and Roll" skidding system for horizontal moving of rig substructures on offshore platforms.　　1992 -　　Drawworks electric remote controls combined with PLC kinetic energy monitor system to prevent traveling block overspeed.　　1993 -　　Dreco designs and constructs its first coiled tubing rigs.　　1995 -　　Dreco introces its new injector head for coil tubing rigs at the OTC in Houston.　　1995 -　　Dreco, in partnership with Hitec, designed and made first variable frequency AC driven drawworks (no main drum or aux. braking).　　1997 -　　Continental Emsco shipped 5,000 HP Electrohoist Drawworks for offshore rig.　　1997 -　　Dreco introced a new "slip" type rotary deadline anchor that allows drill line to be "cut & slipped" without removal from anchor.　　1997 -　　National-Oilwell introced a high pressure hydrodynamic wash pipe packing assy., using a Kalsi seal, w/4" bore for Drilling Swivels.　　1998 -　　Continental Emsco introced the first 60-1/2" rotary, model T-6050, for offshore rigs to handle large diameter riser pipe.　　1999 -　　National-Oilwell shipped two Dreco designed semi-automated trailerized doubles land drilling rigs, with Hitec Cyberbase controls.　　1999 -　　National Oilwell, in partnership with Hitec, designed and made first AC driven "Active Heave Compensating Drawworks" for floating Drilling Rigs.　　1999 -　　SAP was implemented in distribution groups to facilitate inventory control, financial planning, logistics, purchasing, and e-commerce worldwide.　　2000 -　　Pete Miller named COO for National Oilwell.　　2000 -　　National Oilwell implemented Customer Connect, an online application to provide customers with detailed analysis of their spend.　　2001 -　　National Oilwell receives order for two Santa Fe jack-up rigs.　　2001 -　　Pete Miller named CEO.　　2001 -　　BroadVision-based online web catalog implemented to allow ordering via the internet.　　2002 -　　National Oilwell proced the PowerStroke Dual Hydraulic Drilling Jar.　　2002 -　　National Oilwell introced the Multi-Opening Circulating Sub, eliminated the requirement to pull out of hole and remove drop-ball.　　2002 -　　National Oilwell introced the Mini-Tong to improve safety ring makeup and breakout connections on small tools and pipes.