Dear Sirs,We are the supplier of tricone bits and PDC bits in China,we can design and produce PDC bits for you and we are the agent of tricone bits,we have ...
Detailed Product Description Drill collar Operative Standards: API Spec 7API Spec RP7G Drill Collar Specifications: Thread Type OD / D ID / d Length /L mm mm in ...
We are Hebei ZhanKui Drilling Equipment Companyin China. One of the largest drill equipment company producing new drill pipe, drill collar,stabilizer,tricone ...
Spiral Drilling Collar can be achieved by adding 3 spiral grooves to the outside cylinder of common drilling collar, which will effective avoid pressure frozen. ...
Connection# OD ID mm Length Shoulder chamfer diameter 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 ...
COMPANY PROFILEHejian Huanyu Petroleum Machinery Co., Ltd. Was established in 1998,located in Hejian which is in the middle of Cangzhou city,and enjoys good ...
Integral heavy weight drill pipe is manufactured from AISI 4142H-4145H modified drill collar material according to SY/T 5146-1997,thick-walled pipe called ...
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. TIANHE brand spiral drill ...
Elevator Model Upper Bore of Elevator (mm) Lower Bore of Elevator (mm) O.D.of Drill Collar in Rated Load t (kN) DDT 4/( ) 96.84 107.95 4 150(1350) DDT 4/( ) 111...
Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension.Especially drill collar can keep drill bit centralized and hole ...
There are three kinds of model of DCS Drill Collar Slips:S,R and L. They can accommodate drill collar from 3 inch(76.2mm) to 14 inch(355.6mm) O.D.. Slip type ...
Drill collar elevator specification Drill collar elevators are hoisting tools for drill collars with zip lift recess and drill collars with lift plugs in oil ...
Each segment of Varco design Drill Collar slips is a rugged drop forging, with an extra long back to provide maximum support to the circular button gripping ...
Non-magnetic drill collar It is made of high quality low-carbon-alloy steel. The raw material undergo a rigorous analysis of the chemical composition by forging...
Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. ...
Drill collars are available in standard API configurations and connections are cut in accordance with API Spec. 7 & API RP 7G requirement. Special drill ...
The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc.to API Spec.7 and S/T5144. AII threads can be phosphated,copperised or cold ...
Drilling Collar Spiral Drilling Collar can be achieved by adding 3 spiral grooves to the outside cylinder of common drilling collar, which will effective avoid ...
