激情偷拍av-怡红院亚洲第一综合久久-亚洲成av人在线观看天堂无码-国产精品20p-亚洲日韩a∨无码久-国产午夜三级-韩国av免费在线观看-欧美黑人极品猛少妇色xxxxx-久久九九视频-亚洲人成网站在线无码-国产乱淫精品一区二区三区毛片-蜜桃少妇av久久久久久久-久久久综合精品-日韩午夜在线-丁香激情综合久久伊人久久-午夜性福利视频-无线乱码一二三区免费看-久久九九热视频-国内精品久久久久久久影视麻豆-国产伦精品一区二区三区妓女下载

Products & services

Heavy Weight Drill Pipe(HWDP)

Product Introduction 

In the drilling process, HWDP is a transition from a flexible drill pipe to a rigid drill collar. Moreover, it replaces drill collar to reduce friction in horizontal and extended reach wells.
• Reduces the stress concentration between the drill pipe and drill collar.
• Prevents sticking of drilling tool due to differential pressure.
• Reduces friction and torque.
• Mitigates the problem of excessive flexion on center wear pad
Hilong Drilling Tools is committed to the quality and technological innovation of HWDP. It continues to develop HWDP that meet special environments and drilling conditions.

Hilong HWDP Quality and Performance

·The integral HWDP and welded HWDP are manufactured by quenching and tempering heat treatment process, which ensures that the HWDP body has better impact toughness.
Using MES and ERP systems, it can realize comprehensive information management of the entire process from order-to-shipment, including the entire manufacturing process, inspection and test acceptance, and product traceability. 
· Pipe body 100% FLUT (longitudinal, transverse, ultrasonic thickness measurement) + Upset end 100% UT or 100% MPI, HWDP tool joints and welding zone 100% UT + 100% MPI.
· Options for improving the performance of HWDP: Increased length of tong space for HWDP tool joint, make and break, cold rolling of threads, spiral grooves on center wear pad, internal coating, and hardbanding.

HWDP Product Type

·Integral HWDP and welded HWDP.
·Welded HWDP includes standard strength HWDP, high strength HWDP, sour services HWDP, and Hilong premium connection HWDP.
·Without spiral groove and with spiral groove.

 HWDP Specification (OD)

(a)2 7/8", 3 1/2", 4", 4 1/2", 5", 5 1/2", 5 7/8", 6 5/8";
(b)Please refer to Table A.3 or Table 3 for the specifications of commonly used heavy weight drill pipe.

 HWDP Product Standard

API Spec 7-1, NS-1, DS-1, Hilong high-strength welded HWDP specification, Hilong sour service HWDP specification.