http://www.welong-oiltools.comStabilize Technical Supporthttp://www.welong-oiltools.com/technical/21.htmMaterial: AISI 4145H, AISI 4145H MOD Alloy Steel, AISI 4140-4142, AISI 4340 Specification: OD: 6-28 Hardfacing type available: HF1000, HF2000, HF3000, HF4000, HF5000We offer: Stabilizer Forging and Reamer Forging Integral Spiral Blade Stabilizer In...loserqTechnical Support2008-10-07 09:09原创http://www.welong-oiltools.com/dra/37.htmModel: JC40 JC40D JC40DB JC50 JC50D JC50DB JC70 JC70DB JC40 JC50 JC70 JC40D JC50D JC70D JC90D JC40DB JC50DB JC70DB JC90DBloserqDrilling Rig accessories2008-10-07 09:06原创http://www.welong-oiltools.com/leasing/96.htmBusiness ProcessloserqLeasing Business2008-09-13 12:24原创http://www.welong-oiltools.com/leasing/95.htmService coverage: Financing for the clients by leasingDirect lease, leaseback object selection by lessee financing lease contract signed by lease company with lessee purchase contract signed by lease company with supplier loan from bank by lease comp..loserqLeasing Business2008-09-13 12:22原创http://www.welong-oiltools.com/leasing/94.htm-We provide leasing service for all goods we soldloserqLeasing Business2008-09-13 12:18原创http://www.welong-oiltools.com/activity/93.htmWelong has established a complete and reliable quality system in compliance with ISO9001 certified by SGS. The quality management system covers material procurement, equipment machining, parts machining and assembling, test and transportation.loserqActivity2008-09-04 23:54原创http://www.welong-oiltools.com/technical/21.htmMaterial: AISI 4145H, AISI 4145H MOD Alloy Steel, AISI 4140-4142, AISI 4340 Specification: OD: 6-28 Hardfacing type available: HF1000, HF2000, HF3000, HF4000, HF5000We offer: Stabilizer Forging and Reamer Forging Integral Spiral Blade Stabilizer In...loserqTechnical Support2008-09-02 15:51原创http://www.welong-oiltools.com/technical/22.htmDescription: Type O.D. (mm) I.D. (mm) Thread Connection Hole Size (in) WG155 155 31.7 NC38 6 1/8 WG200 200 38 NC46 7 7/8 WG212 212 44 NC46 8 3/8 WG215 215 44 NC50 8 1/2 WG244 244 57 NC50 9 5/8 WG311 311 71 6 5/8 REG 12 1/4 WG444 444 7..loserqTechnical Support2008-09-02 15:51原创http://www.welong-oiltools.com/technical/23.htmDescription: Bottom Upset Yield Strength Tensile Strength Elongation Brinell Hardness Impact AKV σb(MPA) σs(MPA) δ4(%) HB Ακ(J) 85.7——174.6 ≥758 ≥965 13 ≥285 54 177.8 ≥689 930 13 ≥285 54loserqTechnical Support2008-09-02 15:50原创http://www.welong-oiltools.com/technical/24.htmDescription: Reduced torque in high-rpm, deep drilling. Less trip time as compared to handling a long string of drill collars. Fewer tool-joint connection failures. Easy in handling and transporting to and from locations Helpful for keep direction of..loserqTechnical Support2008-09-02 15:50原创http://www.welong-oiltools.com/technical/25.htmDescription: Size in Nominal Weight lb/ft OD Wall Thickness Grade Upset Style Tool Joint in mm in mm 　2-3/8 　 6.65 　2.375 　60.32 　0.280 　7.11 　E、X、G 　EU 　NC26 (2-3/8 IF) 　2-7/8 　 10.40 　2.875 　73.02 　0.362 　9.19 　E、X、G、S ..loserqTechnical Support2008-09-02 15:50原创http://www.welong-oiltools.com/technical/26.htmDescription: Drill COLLAR Specification Style of Connection OD ID Lmm Shoulder bevel edge Diameter DF(mm) Bending Strength Ratio mm in mm in NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57:1 NC26-35(2 3/8IF) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.4..loserqTechnical Support2008-09-02 15:49原创http://www.welong-oiltools.com/technical/27.htmDescription:Diamond bits Optimally designed bit profile for drilling soft to medium hard formations. Cutting structure is force balanced, bit blade is asymmetrically designed, and spiral blade and spiral gage are also designed so that the load on bit..loserqTechnical Support2008-09-02 15:48原创http://www.welong-oiltools.com/stock/92.htmItems Description How many pcs in stock Drill Pipe Body 5 G105, pipe body 127*9.19mm, Length 9.5m approx. 500 tonsloserqStock2008-08-28 14:08原创http://www.welong-oiltools.com/exhibition/91.htmCalgari GLOBAL PETROLEUM SHOW 2008loserqExhibition2008-08-27 00:39原创http://www.welong-oiltools.com/exhibition/90.htmHouston OTC 2008loserqExhibition2008-08-27 00:26原创http://www.welong-oiltools.com/exhibition/89.htmMoscow MIOGE 2007loserqExhibition2008-08-27 00:22原创http://www.welong-oiltools.com/exhibition/88.htmKazakhstan KIOGE 2007loserqExhibition2008-08-27 00:19原创http://www.welong-oiltools.com/exhibition/87.htmHouston OTC 2007loserqExhibition2008-08-26 23:51原创http://www.welong-oiltools.com/exhibition/86.htmCalgari GLOBAL PETROLEUM SHOW 2008loserqExhibition2008-08-26 23:49原创http://www.welong-oiltools.com/exhibition/85.htmDubai OGS 2006loserqExhibition2008-08-26 23:48原创http://www.welong-oiltools.com/exhibition/84.htmAberdeen Offshore Europe 2007loserqExhibition2008-08-26 23:46原创http://www.welong-oiltools.com/exhibition/83.htmPekin CIPPE 2008loserqExhibition2008-08-26 23:45原创http://www.welong-oiltools.com/ms/82.htmType：Springs、Welding Metal Bellows、High-Speed Pumps（Sundyne）、Non-Contacting Gas Lubricated SealsMaterial：Metal Parts：300 series stainless steel、Hastelloy-CSprings、Metal Bellows：316 series stainless steel、AM350、A LLOY-20、Hastelloy-CSeal ..loserqMechanical Seals2008-08-26 13:15原创http://www.welong-oiltools.com/ft/81.htmMH for medium to hard formationXH for hard formation1. Hole size 2. Pilot hole size 3. Top and bottom connections 4. Fishing neck and bottom neck length and OD.5. Types of cutters (SM,MH,XH) Std opening hole Nb.of cutters Pilot hole（mini） Fishin..loserqFishing Tools2008-08-26 12:50原创http://www.welong-oiltools.com/ft/80.htmSpecifications: D In(mm) 5-1/2〞 (Ф140) 7-5/8〞 （Ф194） 8-5/8〞 （Ф219） D1(mm) Ф111 Ф165 Ф197 d(mm) Ф20 Ф30 Ф35 L1(mm) 140 175 175 L(mm) 330 405 425 Connection (box) 2-7/8〞IF 4-1..loserqFishing Tools2008-08-26 12:11原创http://www.welong-oiltools.com/ft/79.htmTaper tap specifications： Type Connection API Overall Length mm Fishing I.D. Range GZ-2 7/8〞IF 2 7/8〞IF 600 138146 GZ-NC31 NC31 780 3851 GZ-NC26 NC26 550 4448 GZ-NC31-1 NC31 860 4262 GZ-NC31-2..loserqFishing Tools2008-08-26 11:59原创http://www.welong-oiltools.com/ft/78.htmSpecifications: No. Type Hole Size Max. O.D. mm Cup I.D. mm Sub O.D. mm Bore dia. mm Mandrel O.D. mm Connection 1 LB-G-94 LB-H-94 4-1/2〞-4 5/8〞 94 84 79 19 51 2 3/8〞REG 2 LB-G-102 LB-H-102 4-5/8＂-4 ..loserqFishing Tools2008-08-26 11:49原创http://www.welong-oiltools.com/ft/77.htmSpecifications: Hole size 5-5/8〞~6〞 7-1/2〞~ 8-1/4〞 8-3/8〞~ 9-1/2〞 9-5/8〞~ 10-5/8〞 16〞~ 17 1/2〞 O.D. Of barrel 5-1/8〞 7〞 7-7/8〞 9-1/8〞 15〞 Steel ball diameter 1-3/8〞 1-11/16〞 1-11/16〞 2-1/4〞 ..loserqFishing Tools2008-08-26 11:17原创http://www.welong-oiltools.com/ft/76.htmSpecifications: Nominal Casing Size Tool O.D. mm Tool I.D mm Top Connection 7〞 146 38 4 1/2〞REG 9 5/8〞 11-3/4〞 210 51 4 1/2〞REG, NC50 13 3/8〞 16〞 20〞 30〞 298 51 6 5/8〞REG, NC50 36〞 660 76 ..loserqFishing Tools2008-08-26 11:09原创http://www.welong-oiltools.com/jrt/75.htmModel Pull-down Length (mm) O.D. (mm) I.D. (mm) Stroke (mm) Tensile Load (KN) Max. Tension Downhole (KN) Sealing Pressure MPa Highest Working Temp. API Connection CSJ42 3980 108 32 305 700 300 20 150 NC31 ..loserqJarring Releasing Tools2008-08-26 10:58原创http://www.welong-oiltools.com/jrt/74.htmMake-up Torque Unit: KN.mModel Connections for External Bowl. Between Top Sub and Central Pipe Between Central Pipe and Slip Mandrel Between Tailpipe and Lower Sub DJ46 8 5 5 2.50.25 DJ70 39 12.7 6.40.49 3.90.39Technical Specifications and Parameters..loserqJarring Releasing Tools2008-08-26 10:50原创http://www.welong-oiltools.com/mt/73.htmTechnical Parameter：loserqMilling Tools2008-08-26 10:29原创http://www.welong-oiltools.com/mt/72.htmFlat Milling Shoe Specifications： TYPE O.D.( mm) Connection API Overall length (mm) PMX104 104 NC26 260 PMX114 114 NC31 260 PMX116 116 NC26 260 PMX145 145 NC38 290 PMX146 146 3 1/2REG 480 ..loserqMilling Tools2008-08-26 10:18原创http://www.welong-oiltools.com/bpt/71.htmFloat Valve (Flapper Type Check Valve) Float Valve SubSpecifications Dia. of Valve Assembly Length of Valve Assembly Dia. of Float Recess Sub Box Other Popular connections Type Depth Of Recess Type Depth Of Recess 42.07 14..loserqBlowout Prevention Tools2008-08-26 02:43原创http://www.welong-oiltools.com/bpt/70.htm连接螺纹 Connection 外径（in） OD of Sub 内径（in） ID of Sub 长度 AII Length 重量(Kg) Weight 2-3/8IF 3-3/8〞3-3/4〞 1-1/2〞 26〞 27 2-7/8IF 4-1/8〞4-1/4〞 1-3/4〞 28〞 40 3-1/2IF 4-3/4〞5-1/4〞 2〞 3..loserqBlowout Prevention Tools2008-08-26 02:16原创http://www.welong-oiltools.com/bpt/69.htmO.D I.D Box Pin AII Lengh 8＂(203) 2 15/16＂(74) 6 5/8REG-left（LH） 6 5/8REG- left（LH） 22 5/16＂（566.3） 7 3/4＂(196.8) 3 1/16＂(78) 6 5/8REG- left（LH） 6 5/8REG- left（LH） 24 11/16＂（627） 7＂ (178) 3..loserqBlowout Prevention Tools2008-08-26 02:01原创http://www.welong-oiltools.com/ptt/68.htmDesign Feature：Hammer union ranges in size from 1~4 with cold working pressure of 7Mpa~105Mpa. Both Standard and sour gas pipe connections are available. End connections are either LP female threads or subject to the customers requirements. No. ..loserqPressure Testing Tools2008-08-26 00:35原创http://www.welong-oiltools.com/ptt/67.htmpecifications: Sizes (inches) O.D. (mm) Length (mm) 5-1/2 235 125 7 275 125 9-5/8 335 145 10-3/4 362 115 13-3/8 425 115 16 500 125 18-5/8 565 125loserqPressure Testing Tools2008-08-26 00:27原创http://www.welong-oiltools.com/ptt/66.htmSpecifications： Type Connection     API Size of Suitable Casing Overall Length mm O.D.(in) Wall Thickness(mm) SYD4 NC26 4 1/2 7.37 620 SYD5-1 NC26 5 9.19 620 SYD5-2 NC26 5 7.52 620 SYD5-3 NC26 5 6.43 620 SYD5A-1 2 7/8EUE 5 1/2 10.5..loserqPressure Testing Tools2008-08-25 23:55原创http://www.welong-oiltools.com/wt/65.htmTechnical Specifications and Parameters： NO. Bit Size Range Thread Type A(mm) B(mm) C(mm) D(mm) 1 93.7~114.3 2-3/8” REG 82.55 339.73 66.68 31.75 2 115.1~127 2-7/8” REG 92.03 339.73 76.20 31.75 3 127.8~139.7 3-1/2” REG 114.30 339.73 104.78..loserqWellhead Tools2008-08-25 23:45原创http://www.welong-oiltools.com/wt/64.htmSpecifications:3-1/2, 5, 5-1/2.loserqWellhead Tools2008-08-25 23:43原创http://www.welong-oiltools.com/wt/63.htmMain technical parameters for Lifting Cap： Thread O.D.(mm) Length(mm) Thread O.D.(mm) Length(mm) Thread O.D.(mm) Length(mm) 731 210 280 730 230 290 430 160 270 631 190 270 630 200 280 431 150 ..loserqWellhead Tools2008-08-25 23:39原创http://www.welong-oiltools.com/wt/62.htmMain technical parameters: NO. Nomi SizeD 0.1mm (in.) I.D.d/mm External Thread Connection Lifting End Thread Type O.D.DP 0.1mm (in) BevelledDE /mm Tong SpaceLPB /mm DB 0.1 Tong SpaceLB /mm 1 73 (2-7/8) 31.8 NC23 ..loserqWellhead Tools2008-08-25 23:25原创http://www.welong-oiltools.com/wt/61.htmThe Square Drive Roller Kelly Bushing provides the following advantages:Because of its integral construction, it can not fly out and hurts you.The bushing is easily installed into the master bushing, maintaining good alignment;The contact between Kel..loserqWellhead Tools2008-08-25 23:13原创http://www.welong-oiltools.com/ctca/60.htmProduct featuresThe valve moves steadily and securely, adopts reposition sealing, and then has a good pressure bearing capacity. The core is made from materials with good drillability. When running casing, mud can be filled into it at the same time t..loserqCementing Tools2008-08-25 22:53原创http://www.welong-oiltools.com/ctca/59.htmAdvantages:1.Cuts multiple strings smoothly, even when each string is not concentric.2.Affords maximum expansion of blades up to 5 times body diameter.3.Rugged 3-blade construction grants a high speed cutting.4.Cutter arms can be retracted only when ..loserqCementing Tools2008-08-25 22:49原创http://www.welong-oiltools.com/ctca/58.htmSingle-Plug Cementing Head1. Main parts are made from AISI4145H alloy steel.2. Quick-latch adapter is designed to offer easier, faster and safer makeup for two-stage cementing. It is manufactured utilizing API grade steels with connections for API 8 ..loserqCementing Tools2008-08-25 22:44原创