Drill Stem

Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level drill stem manufacturers and suppliers,Website:http://www.zztopdownhole.com, with professional factory, we are able to produce API and oilfield cross over sub, float valve, lifting sub, drill string stabilizer , welcome to contact us. API Stabilizer/Centralizer in oilfield Standard: API 7-1 Material: AISI 4145H and Non-magnetic Type: Drill string stabilizer          Near bit stabilizer Specification of the oil well drilling stabilizer Bit size /in Working OD/mm End OD of  body /mm ID /mm Length /mm Thread code on both ends Drill string type Near bit type TOP Down TOP Down 6 152.2 121 51 1200 NC38 3 1/2REG 6 1/4 158.7 6 1/2 165.1 7 1/2 190.5 159 57 1600 NC 46 4 1/2 REG 7 7/8 200 8 3/8 212.7 159 165 71 1600 1800 NC 46 NC 50 8 1/2 215.2 159 165 178 8 3/4 222.2 9 1/2 241.3 178 197 1600 NC50 9 5/8 244.5 1800 6 5/8 REG 9 7/8 250.8 12 1/4 311.2 203 209 76 1800 NC56 6 5/8 REG 6 5/8 REG 16 406 229 241.3 2000 2200 NC 61 7 5/8 REG 17 1/2 444.5 24 609.6 26 660.4 28 711.2 Drill pipe Standard: API 7 Grade: E75, X95, G105, S135 Coating: TK34, TC2000, TC3000 Hard banding: ARNCO 100 XT, ARNCO 300XT Length: R1/R2/R3 Drill collar: Standard: API 7 Material: AISI 4145H and Non. Magnetic OD: 3 1/8”- 11” Length: 10’ - 31’ Crossover Sub/X-over Sub Standard: API 7 Material: AISI 4145, AISI4140, AISI4130 Connection: IF, REG, EUE, CAS, ACME,NPT