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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