Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

5" Drill pipe | 4-1/2' Drill tube | 4" and 3-1/2' Drill pipes


Drill Pipe
 
Qiancheng Drilling gives an entire line of drill string merchandise, which include a complete selection of jointed drill pipe in nominal dimensions from 2-3/8" to 6-5/8" as well as in an array of wall thicknesses.
Qiancheng Drilling drill pipe is made to deliver top-quality complex effectiveness as well as a company life time exceeding most recent business benchmarks. Qiancheng Drilling drill pipe is on the market with:
Proprietary oversized minimum amount interior upset (miu), for superior tiredness resistance (where by relevant);
Extended tool joints, offering a maximum re-cut ability for lengthier service lifetime; and
Higher toughness specification on pipe system, weld and gear joint, giving higher protection margins in serious drilling situations.
Qiancheng Drilling resource joint forgings meet or exceed API specifications and tolerance specifications. Every single joint is inspected to ensure visual and dimensional homes, and analyzed to be sure right mechanical characteristics. 
 
OD: 3.5"(88.9 mm)
WT: 9.35 mm or 11.4 mm (13.3 LB/FT or 15.5 LB/FT)
Length: RI, RII, RIII (2m~12m)
More Produts Specifations
OD Grade Weight 
Designation
Wall thickness Tool joins OD
Inch mm inch mm mm
2-3/8'' 60.32 E,X,G,S 6.65 0.280 7.11 85.7
2-7/8' 73.02 E,X,G,S 10.40 0.362 9.19 104.8
3-1/2' 88.9 E,X,G,S 13.30 0.368 9.35 127.0
4'' 102 E,X,G,S 14 0.330 8.38 13.4
4-1/2' 114 E,X,G,S 16.6 0.337 8.56 152.4
5' 127 E,X,G,S 19.5 0.362 9.19 168.3
On the list of most important sections in welded drill pipe may be the transition zone between the instrument joint and the pipe overall body. A smooth, gradual transition connected to the excellent mother nature with the purity of our metal assures least strain focus and drastically improves the tiredness life of the pipe. 
Qiancheng Drilling resource joint forgings meet or exceed API specifications and tolerance prerequisites. Just about every joint is inspected to guarantee visible and dimensional homes, and tested to guarantee appropriate mechanical properties. 

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