Causes of Cracking In Oil Well Casing Couplings
Release time:
2021-05-19
Based on the analysis of fracture morphology, chemical composition, mechanical properties, microstructure and corrosion product composition, the causes of cracking of casing collar of an oil well were analyzed.
The results show that the coupling cracking is mainly caused by the stress corrosion cracking caused by hydrogen sulfide; the casing is exposed to the hydrogen sulfide corrosion medium after entering the well, which causes serious pitting corrosion on the outer surface of the coupling, forming corrosion pits, and the pulling of the coupling. The stress is large, and the interaction between the tensile stress and the corrosive medium eventually leads to stress corrosion cracking of the coupling. To prevent the accident from happening again, it is recommended to use the sulfur-resistant coupling material and connect the special thread to the casing.
Latest News
Bangladesh client Mr.Baki visits and inspects our factory
Recently,Mr. Baki came to our company to inspect, the general manager of the company and foreign trade department colleagues received the international friend.
2018-03-15
Linde Group Visit Shandong Jinding Stainless Steel Tube Co.,Ltd
Recently,Linde Group came our factory to inspect,they welcomed by the general manager of the company and foreign trade department colleagues.They visited the workshop,test machine,stainless steel coil
2018-03-15
Shandong Jinding STS Tube TS16949 certifcate issued by LRQA
ShandongJindingSTSTubegetTS16949issuedbyLQRALRQAisthefirstinspectionagencyintheworldanditsissuecertificateisknownasauthorityandauthentication.ShandongJindingSTSTubegettheissuedcertificatebyLRQAafterst
2018-03-15
PED Certificate Awarded to Shandong Jinding Stainless Steel Tube
PED Certificate Awarded to Shandong Jinding Stainless Steel Tube Shandong Jinding Stainless Steel Tube Co.,Ltd passed the LRQA audit and awarded PED certificates.
2018-03-15
Stainless Steel Tube trade assurance $108,000 credited by alibaba
Welcome to place order through alibaba trade assurance. Shandong Jinding Stainless Steel Tube amount is USD 108,000.00.Alibaba will fully cover this order amount.More details, send
2018-03-15
CONTACT US
Contact person: Rock Fan
Tel : +86 534 7282066
Fax : +86 534 7283677
Mob：+86 156 2180 5711
E-mail : sales2@jdbxgg.com
Wechat : +86 15269292908
Address : West end of Yuwang Street,Yucheng City, Shandong Province, China
GET A FREE QUOTE
Copyright : Shandong Shengtong Stainless Steel Tube Co.,Ltd Powerby : 300.cn jinan2 SEO BUSINESS LICENSE
