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          Products & services
          
                            
          
                        
          
                    
          
            
          
            
          
        
          
    
          


          
    
          
        
    
          
        
          
            
        
          

          


          
    
          
					
          
						
          
							
          Special drilling tools
          
							
          
							
						
          
						
          
					
          
					
          
                            Hilong Double Shoulder Connection
                            Hilong Super High Torque Connection
                            Hilong Gas Sealed Connection
                            Hilong Super High-Strength Drill Pipe
                            Hilong Sour Service Drill Pipe / Sour Service Heavy Weight Drill Pipe
                            Hilong Non-Slip-Crush Drill Pipe
                            Hilong Slip-Protected Drill Pipe
                            Hilong Flush Hole Drill Pipe
                            Hilong Double-Walled Drill Pipe
                            Hilong Arctic Service Drill Pipe
                            Hilong Landing String Drill Pipe
                            Hilong's Electronic Tag Drilling Tool and IoT Management System
                            Hilong Efficient Cuttings Bed Clean Drill Tool
                            Hilong Large Size HDD (Horizontal Directional Drilling) Drill Pipe
                            Hilong Slim Drill Pipe
                            HLNST
                    
          
                    
          
                        
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Double Shoulder Connection
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Super High Torque Connection
          
                                        
          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 Gas Sealed Connection
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Super High-Strength Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Sour Service Drill Pipe / Sour Service Heavy Weight Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Non-Slip-Crush Drill Pipe
          
                                        
          Hilong landing string drill pipe is typically used to land heavy casing strings in a deep-water environment. Designed at the aspects of the drill pipe structure, material strength, etc., so that the landing string drill pipe has sufficient tensile load capacity to meet the tensile requirements of large-size heavy-duty landing. 
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Slip-Protected Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Flush Hole Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Double-Walled Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Arctic Service Drill Pipe
          
                                        
          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.
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Landing String Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong's Electronic Tag Drilling Tool and IoT Management System
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Efficient Cuttings Bed Clean Drill Tool
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Large Size HDD (Horizontal Directional Drilling) Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          Hilong Slim Drill Pipe
          
                                        
          
                                        
                                    
          
                                
          
                                
          
                                    
          
                                    
          
                                        
          HLNST