wireline NQ HQ PQ drill rod, NW HW PW casing and tube
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- Supplier: Jinshi Drilltech Co. Ltd.
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Product Overview
Description
Product Description
wireline NQ HQ PQ drill rod & drillpipe, NW HW PW casing and tube
Casings are often used when there is need to stabilize the drill hole and protect it from leaking, collapsing or water-bearing stratum. Casings are flush joint type and are available in W and WT threads. W casing utilizes the DCDMA W thread form. WT casing is made with DCDMA tubing and tapered thread form.
W casing overview
W casings are made in DCDMA standards and are available in AW, BW, NW, NWA, HW, and PW standards.
Raw materials:
Tangshan Jinshi only choose the best steel tubes in the market to manufacture our rods and pipes. Spot check will be conducted after the steel tubes delivered to company. We will make sure the compositions and specifications match the inspection report form the suppliers.
Heat treatment control:
Heat treatment will greatly improve the material strength and increase the thread wear life of the rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested in our lab.
Thread opening process:
Accuracy of threads will determine the use effects and life time of drill rod and casings.
CNC latches and form cutter are used in thread opening processing to minimize error made by anthropic factors.
Additional thread treatment:
Surface of the threads will be cleaned to remove burr adhered after threads are opened.
Afterwards, the tread surface will be phosphated to improve surface conditions. 
Company Information
Tang shan Jinshi Superhard Material Co., LTD. was established in 1996, The enterprise covers an area of 80000 square meters and has 528 employees in which 178 of them are technical personnel.
Jinshi premium drilling products include diamond bits, reaming shells, core barrels, rods & casings and drilling accessories. Jinshi products are available in international industry, Chinese industry and Jinshi enterprise standards.
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Our Services
Jinshi will response in 8 hours to the problems caused by our products. When necessity arises inside the country, technical support will arrive in 24 hours within a 1000 kilometers radius of the company, will arrive in 48 hours for other parts of China. Due to the limitation of branch offices in foreign countries, technical support will arrive your work site in 15 days after visa is issued.
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