Drill pipe Heavy weight drill pipe Drill collar Special drilling tools
Internal coating for drill pipe series Internal coating for casing and tubing
HLST®, HLIST®, and HLNST® are newly developed by Hilong based on the double shoulder structure of HLIDS®, featuring ultra-high torsional resistance double shoulder threads. HLST®, HLIST®, and HLNST® are more suitable for use in harsh well conditions such as deep wells, ultra deep wells, horizontal wells, extended reach wells, and sulfur-containing environments.
Hilong’s low-temperature drill pipe is independently developed to meet the needs of oil and gas exploration operations in extremely cold regions. It is a specialized drill pipe designed for use in low-temperature environments, capable of operating at temperatures of -60 °C and above.
Scan and follow us沪ICP备14040674号-1
沪公网安备 31011302005992号 © 2018 HI LONG GROUP OF COMPANIES， All Rights ReservedPrivacy Policy
