Sucker Rod
Drilling Pipe
Drilling Collar
Metering Pump
About Us
Contact Us

High strength drilling pipe

2023-05-04 18:35 13270 views

‌High strength means high yield strength in physical performance. The basic structure and production process of high-strength drill pipes are almost the same as that of conventional drill pipe, while the main difference lies in the selection of materials. Sunrise petro can manufacture high strength drilling pipe with high quality. We have rich experience in production and a strong ability in research and development. Our products include various series of high strength and ultra-high strength drilling pipe based on client requests.


In the strength design of drill string, it is recommended to improve the strength of drill string by increasing the steel grade instead of increasing the wall thickness. The grade of drill pipe refers to the grade of drill pipe steel, which is determined by the minimum yield strength of drill pipe steel.

According to API 5DP, there are 4 grades of drill pipe steel: E, X95, G105and S135, of which X, G and S are high-strength drill pipes. The higher the steel grade of the drill pipe, the greater the yield strength of the pipe, and the greater the various strengths of the drill pipe (tensile, torsional and extrusion resistance, etc.).


The following shows the comparison of mechanical properties between conventional drill pipe and high strength drill pipe.

GradeYield strength psiTensile strength psiElongation %Charpy V impact ft-lb
 minmaxminminmin 70℉
E75 000105 000100000a40 average
X95 000125 000105000a40 average
G105 000135 000115000a40 average
S135 000165 000145000a40 average



1)120~160mm long

2) Transition area long & Smooth

3) Equipped with Make & Break Machine, we can perform make & break testing as per customer requirement

4) Cold rolling of the threads can be carried out as per client demands.

5) Different materials can be selected according to different needs of customers to achieve the best product performance and economic value ratio.


Light and thin-walled high-strength steel drill pipes can be used to solve the drilling problems of extended reach wells, ultra-deep wells and deep water drilling

Next:No data
  • Carbon Fiber Reinforced Plastic drilling pipe
    With the increasingly difficult exploration and production of oil and natural gas, deep wells, horizontal wells, extended reach wells, sulfur-containing wells and low-temperature wells have higher and higher requirements for drill pipes. Carbon fiber comp
  • Internal coated drill pipe
    The inner coating of drill pipe can avoid the direct contact between the inner wall of drill pipe and corrosive drilling fluid, effectively alleviate the corrosion of drill pipe and reduce the flow resistance of natural gas. It is a significant measure to
  • Tungsten-plated drilling pipe
    ‌In the drilling process, the failure of drill pipe is a very serious problem. Although the torque, tensile strength, compressive strength, bending stress, etc. of the drill pipe are accurately calculated under ideal conditions before drilling, the corros