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        Hilong Double Shoulder Connection
        


        

        

        Product Introduction
        

        


        

        HLIDS® is an API compatible high torque double shoulder connection developed by Hilong.
        
HLMT® is a double shoulder connection designed and developed refer to API connection and customer's requirement 
        
on site.
        
HLIDS® and HLMT® have features as follows:
        
• The same standard thread profile as API;
        
• Double shouldered design;
        
• Smooth transmission on inside diameter;
        

        

        

        

            
        



            
        
                
        

        Product Advantage
        


        

        ·Higher Torque: by using HLIDS® and HLMT® connections with current API ODs and IDs will result in 20%~50% of torque capacity higher than API.
        
· While maintaining required torsional strength, it can:
        
- minimize the tool joint OD;
        
- maximize the ID;
        
·High fatigue resistance, thus prolong the pipe service life.
        
·Improving hydralic efficiency and reduce washout.
        

        

        

            
        


            
        
                
        

        Product Specification
        


        

        (a)HLIDS®series includes HLIDS®23, HLIDS®26, HLIDS®31, HLIDS®38, HLIDS®40, HLIDS®46, HLIDS®50, HLIDS®5 1/2FH and HLIDS®6 5/8FH etc. and can be applied to all API drill pipes with standard steel grades and specifications from 2 3/8 to 6 5/8 inches；
        
(b)HLIDS®connection performance, Please see Table A.5 or Table B.5；
        
(c)HLMT®series includes HLMT®2-3/8PAC, HLMT®2-7/8PAC, HLMT®38, HLMT®40, HLMT®46, HLMT®50 and HLMT®5-1/2FH etc；
        
(d)HLMT® connection performance, Please see Table A.6 or Table B.6.
        
 
        

        

        

            
        


            
        
                
        

        HLIDS® and HLMT® applicable well condition
        


        

        Suitable for drilling under harsh conditions such as deep well, horizontal well, extended reach well and sulfur-containing environments.