"Bulletin of the Association of Drilling Contractors" №4, 2019

DUAL GRADIENT DRILLING AS A WAY TO REDUCE COSTS OF CONSTRUCTION OF DEEPWATER WELLS

Ganiev R.I. – Technical Consultant of Dual Gradient Systems LLC, radmirganiev@mail.ru Luc DeBoer – CEO of Dual Gradient Systems LLC, Deboerlucas30@gmail.com radmirganiev@mail.ru
Agliullin A.K. – Doctor of Technical Sciences, Professor, Ufa State Petroleum Technological University, CEO of Center for Engineering Technologies LLC, dir@et.center Deboerlucas30@gmail.com
Аглиуллин Ахтям Халимович – д.т.н., профессор Уфимского государственного нефтяного технического университета, генеральный директор ООО «Центр инженерных технологий», dir@et.center
Ismakov R.A. – Doctor of Technical Sciences, Professor, Vice-rector for Scientific and Innovative Department, Ufa State Petroleum Technological University, nauka_ugntu@mail.ru nauka_ugntu@mail.ru

УДК 622.24

Key words
: managed pressure drilling, deepwater drilling, offshore drilling, dual gradient drilling, riser, offshore exploration.

The article is about problem of drilling deepwater oil and gas wells that consists in complicating and increasing cost of their well design due to narrowing mud window at different depths. The authors analyze drilling technology developed and applied in practice of offshore drilling with a dual gradient drilling, which allows drilling significant intervals without overlapping an intermediate casing string. Based on analysis of these technologies and taking into account their disadvantages the authors proposed a new drilling technology of dual gradient drilling with placement of all necessary innovative equipment on drilling platform.

DUAL GRADIENT DRILLING AS A WAY TO REDUCE COSTS OF CONSTRUCTION OF DEEPWATER WELLS

Ganiev R.I. – Technical Consultant of Dual Gradient Systems LLC, radmirganiev@mail.ru
Luc DeBoer – CEO of Dual Gradient Systems LLC, Deboerlucas30@gmail.com
Agliullin A.K. – Doctor of Technical Sciences, Professor, Ufa State Petroleum Technological University, CEO of Center for Engineering Technologies LLC, dir@et.center
Ismakov R.A. – Doctor of Technical Sciences, Professor, Vice-rector for Scientific and Innovative Department, Ufa State Petroleum Technological University, nauka_ugntu@mail.ru

Key words: managed pressure drilling, deepwater drilling, offshore drilling, dual gradient drilling, riser, offshore exploration.

The article is about problem of drilling deepwater oil and gas wells that consists in complicating and increasing cost of their well design due to narrowing mud window at different depths. The authors analyze drilling technology developed and applied in practice of offshore drilling with a dual gradient drilling, which allows drilling significant intervals without overlapping an intermediate casing string. Based on analysis of these technologies and taking into account their disadvantages the authors proposed a new drilling technology of dual gradient drilling with placement of all necessary innovative equipment on drilling platform.

 

Издан 3 номер за 2024 год ежеквартального научно — технического и производственного журнала "Bulletin of the Association of Drilling Contractors"

ISSN 2073-9877

The scientific and technical journal, “Bulletin of the Association of Drilling Contractors”, is listed by the Higher Attestation Commission of the RF Ministry of Education and Science as one of the leading refereed journals and publications that feature main scientific results of doctoral and candidate’s dissertations.

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