Products News
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Characteristics, working principle and application range of three – edge drill pipe
Three-edge arc convex type gas drainage drill pipe, referred to as three-edge drill pipe. The middle rod body of three-edge drill pipe is three-edge arc type, and the two ends can be welded by friction welding to form an arc type with triangular appearance, or processed into a whole three-edge ty...Read more -
Top 10 Coal mines in the world, do you know?
As early as the Neolithic age, human beings have records of using coal, which is one of the important energy sources for the development of human society. Top 10 Coal mines in the World Due to its economic price, abundant reserves and important value, countries all over the world attach great imp...Read more -
Diamond drill bit detailed classification introduction
Diamond PDC anchor bit Also known as rock drills, anchor drills, two wings diamond compact bit, drilling in coal mine area is mainly used for roof support, anchor rod and anchor rope support before drilling, in the field of geological exploration, can be used in hard formation and hard rock drill...Read more -
What should be noted when using diamond drill bit?
First, diamond drill before drilling preparation 1. Check whether there is damage to the last diamond bit body, tooth loss, etc., to ensure that the bottom of the well is clean and no falling objects. 2. Handle the diamond bit carefully and place the diamond bit on the rubber pad or wood. Do not ...Read more -
news IADC Code By Yinhai Rock Bits
INLLUSTRATION OF IADC CODE OF TRICONE BITS IADC-THREE DIGITS FIRST DIGIT SECOND DIGIT THIRD DIGIT FROM 1~8 Higher number denotes increase tooth count for harder formations FROM 1~4 FROM 1~7 This digit classify bits acco...Read more -
new design product release
YINHAI Product Line The high-quality YINHAI product line bits are designed for drilling various types of wells Sizes From 5 7/8” to 6 3/4” 5 7/8”- 6 3/4” Seals & Bearings: 5 7/8”to 6 3/4” Bits of this line have a reliable sealed journal bearings system which provid...Read more -
new design product release -roller hole openner
Ⅰ. OVERVIEW OF YINHAI HOLE OPENERS Roller Cone Hole Opener Size (inch): 8”~62”and customized according to drawings or requirements. Roller cone size(inch): 6 1/2”~26” Roller cones from tricone bits Pilot rock bit size: 5 1/2”,6 1/2”,8 1/2...Read more
