STUDY OF A METHOD FOR CALCULATING A FRICTION DRAG FORCE DURING A DEEP WATER INJECTION DESCENT OF SURFACE CASING
Zhao Jinfang – Superior Class Engineer, Technical Director, АО COSL, zhaojf@cosl.com.cn zhaojf@cosl.com.cn
Xiang Hua – Engineer, Offshore Oil and Gas Fields Development Specialist, xiang.h@gubkin.ru
Yang Jin – Doctor of Technical Sciences, Professor, Vice President, Marine Engineering Research Institute, China Petroleum University (Beijing), yjin@cup.edu.cn yjin@cup.edu.cn
Xu Yongjia – Postgraduate Student, China Petroleum University (Beijing), 89725520@qq.com 89725520@qq.com
Meng Wei – Master of Science, Marine Engineering Research Institute, China Petroleum University (Beijing), 113140609@qq.com 113140609@qq.com
УДК 622.276.04
Key words: well drilling on shelf, surface casing descent, soil resistance.
Method for calculating a friction drag force during an injection descent of a surface casing into the seabed, which was tested during experimental studies, has been developed. From the comparison of calculation results with experimental data, it follows that the calculated value to some extent reflects the actual value of the drag force on the surface casing friction. All parameter values required for calculation in accordance with this method can be obtained prior to commencement of injection operations.
STUDY OF A METHOD FOR CALCULATING A FRICTION DRAG FORCE DURING A DEEP WATER INJECTION DESCENT OF SURFACE CASING
Zhao Jinfang – Superior Class Engineer, Technical Director, АО COSL, zhaojf@cosl.com.cn
Xiang Hua – Engineer, Offshore Oil and Gas Fields Development Specialist, xiang.h@gubkin.ru
Yang Jin – Doctor of Technical Sciences, Professor, Vice President, Marine Engineering Research Institute, China Petroleum University (Beijing), yjin@cup.edu.cn
Xu Yongjia – Postgraduate Student, China Petroleum University (Beijing), 89725520@qq.com
Meng Wei – Master of Science, Marine Engineering Research Institute, China Petroleum University (Beijing), 113140609@qq.com
Key words: well drilling on shelf, surface casing descent, soil resistance.
Method for calculating a friction drag force during an injection descent of a surface casing into the seabed, which was tested during experimental studies, has been developed. From the comparison of calculation results with experimental data, it follows that the calculated value to some extent reflects the actual value of the drag force on the surface casing friction. All parameter values required for calculation in accordance with this method can be obtained prior to commencement of injection operations.
