All Categories - NERA GROUP
LSAW Steel Pipes
LSAW Pipe (Longitudinal Submerged Arc-Welded Pipe) is formed by JCOE with one straight welded seam, using plate as raw material, double-sided submerged arc welding and flaring from production. With a wide range of finished product specifications, weld toughness, ductility, uniformity and density, with large diameter, wall thickness, high pressure resistance, low-temperature corrosion resistance, etc.
ERW Steel Pipes
OD: φ21.3mm~φ660mm (1/2’'~ 26’’);
WT: 2.5mm~60m;
Length: 5.8m~12m;
Material: CS:
ASTM A106 GR.B/GR.C, ASTM A53 GR.B , API 5L GR B, X42, X52, X60, X70, PSL1&PLS2; ASME A192, ASTM A210, A252, 20G, S275JR, P235, SS400, STPG370, SGP, STK400, St37, St42, ETC.
LTCS: ASTM A333, ASTM A335 GR P1, P5, P9, P11, P22, P91; ASTM A691, SA213, Q345,16Mn, L245~L555; STPG42, G3454, G3456; St45, St52, ETC. ¨ Standard: ASTM /ASME B36.10M, API 5L, API 5CT, JIS3454, JIS3456, JIS3444/3455/3457, DIN17175, DIN17100, DIN1626, BS1387, BS6323, BS10210, BS3602,EN10217, EN10219, AS1163, AS1074, GOST 8696-74, GOST 8731-74, GOST 8732-78 , GB/T3087, GB/T8163, GB5310, GB6479, ETC.
Electric Drive Rig
he drilling rig is powered by a diesel generator. The AC power from several diesel generators controls and drives drawwork, mud pumps,rotary table drive motors, motor-driven drawwork, mud pumps and rotary tables via SCR or VFD systems. Drilling rig adopts K type derrick, low installation, overall release; base with parallelogram structure, low installation, use drawwork tension to rise in place; Drawwork main brake using hydraulic disc brakes, auxiliary brake for electromagnetic eddy current brake or Eaton brake; VFD drive of the rig drawwork, auxiliary brake can use energy braking; drive turntable motor through two gearbox drive rotary table.
Electric drive rig performance characteristics:
1.Basic parameters in line with industry standards and regulations, the main components manufactured in line with the relevant norms;
2.SCR and VFD speed control system and digital control technology to flexibly adjust the drawwork lifting speed, rotary table speed and mud pump stroke to improve the working performance and power utilization of drawwork, rotary table and mud pump;
3.The traveling block position to achieve closed-loop control; auxiliary drive to achieve automatic drilling and
Skid Mounted Rig ZJ-50
Land Drilling Rigs
We supply a full line of land drilling rigs: skid-mounted, truck-mounted and trailer-mounted. Our skid-mounted drilling rigs include AC/VFD or DC/SCR drive rigs, mechanical-electric combined drive rigs, and mechanical rigs (Belt or Chain transmission), power ranging from 450HP to 3,000HP (Rated Drilling depth: 1,500-9,000m). Our truck-mounted drilling rigs range from 550HP to 1,000 HP.
Tips For Inquiries
Rig type: Skid -mounted, truck-mounted, or trailer-mounted?
Hook load or drilling depth or rig power, better to submit rig specifications list, if not available, we may provide our specification list for your reference
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