7inch Casing Pipe Use For Oil Exploration AddThis Sharing Buttons Share to FacebookFacebookShare to TwitterTwitterShare to LinkedInLinkedInShare to PinterestPinterestShare to ...AddThis We can supply 7" L80/J55/K55/P110 Casing pipe use for oil exploration,Oil Perforation. Send InquiryChat Now Product Details: 7inch Casing Pipe Use For Oil Exploration Introduction 7" L80/J55/K55/P110 Casing pipe use for oil exploration,Oil Perforation. All wells drilled for the purpose of oil or gas production (or injecting materials into underground formations) must be cased with material with sufficient strength and functionality. Specification Size 7â?? Material Grade J55K55N80L80P110Q125L80-3CrL80-9CrL80-13Cr Thread Type STCLTCBTCPremium Connection Length R3(10.36-14.63m) Product Description Size Outside Diameter(mm) Wall Thickness(mm) 4-1/2 114.30 5.21-8.56 5â?? 127.00 5.59-12.7 5-1/2â?? 139.70 6.20-22.22 6-5/8 168.28 7.32-12.06 7â?? 177.80 5.87-22.22 7-5/8â??