Specifications
1. OD:3 1/8'' ~ 11''
2.ID: 1 1/4'' ~ 3''
3. NC23-31 ~ 8 5/8REG
4.Length: 9150 or 9450mm
5.API 7; AISI4145H, SY/T5144
Drill collar
we supply different drill collars and other petroleum equipments, for more details please kindly contact us.
Options:
*Standard:API 7; AISI4145H, SY/T5144 or Non-Standard.
1.Standard size, bores and connections for drill collar.
Connection: NC23-31 ~ 8 5/8REG
OD: 3 1/8'' ~ 11'' (79.4 ~ 279.4mm)
ID: 1 1/4'' ~ 3'' (31.8 ~ 76.2mm)
Length: 9150 or 9450mm
Df: 76.2 ~ 266.7mm
Bending strength ratio: 2.75:1 ~ 2.84:1
2.Spiral size of spiral drill collar.
OD:3 7/8'' ~ 11'' (98.4 ~ 279.4mm)
Depth of cut(A) mm: 4.0+/-0.79 ~ 11.9+/-2.37
Depth of cut(B) mm: 5.6+/-0.79 ~ 8.7+/-1.59
Pitch: 914 ~2037mm
3.Non-maganetic drill collar.
Sel.:NC23-31 ~ 8 5/8REG
OD:3 1/8'' ~ 11'' (79.4 ~ 279.4mm)
ID: 1 1/4'' ~ 3'' (31.8 ~ 76.2 mm)
Length: 9150 or 9450
Bending strength ratio: 2.75:1 ~ 2.84:1
Our main products:
Drill Equipment, Well control system,OCTG, Well head tools, camps,drill bit and spray head,drilling instruments, cementing, oil mining equipment, water well drilling rig and petrochemical products,Electric oil-submersible pump unit, QYYEQ Submersible power cables and so on.
Dongying Qixiang Import & Export Co.,LTD(DYQX Petro company) follow the principle of "quality first, science and technology innovated, people oriented",, it benefits from the convenient running, high efficiency, swift reaction, experienced experts and the advanced management. In a meanwhile, it has about 50 sub-contractors to cooperate all over the country, and it always sticks to good faith, strictness, specialty, innovation, also satisfactory service.our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions).
Our Service Objective: People-O riented, Quality firstly and Best service.
Welcome to Visit DYQX petro.
Dongying Qixiang Import&Export Co.,Ltd
Address:North 2nd Road,Number 352,Dongying Zone, Dongying City, Shandong province, China.
Skype:eve.liu06211988
Mobile:0086-18554639639
whatsnap:0086-13290276176
Web: & http://qixiangpetre.en.china.cn