{"id":1885,"date":"2020-10-27T21:00:47","date_gmt":"2020-10-27T18:00:47","guid":{"rendered":"https:\/\/adcr.ru\/?p=1885"},"modified":"2020-10-27T21:12:40","modified_gmt":"2020-10-27T18:12:40","slug":"2016-4-5","status":"publish","type":"post","link":"https:\/\/adcr.ru\/en\/2016-4-5\/","title":{"rendered":"\"REPORTER of the Association of Drilling Contractors\" \u21164, 2016"},"content":{"rendered":"
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\"\"<\/strong><\/h3>\n

TECHNICAL AND TECHNOLOGICAL ASPECTS OF WELL PLANNING AND DRILLING IN THE PRESENCE OF SHALLOW GAS ON THE SHELF OF THE SEA OF OKHOTSK<\/strong>

Petrenko, Vadim E. \u2013 head of division, PJSC Gazprom, V.Petrenko@adm.gazprom.ru V.Petrenko@adm.gazprom.ru<\/a>
Oganov, Garry S. \u2013 Dr.Tech.Sci., professor, first deputy general director, LLC Krasnoyarskgazprom neftegazproekt\", g.oganov@krskgazprom-ngp.ru <\/strong><\/em>g.oganov@krskgazprom-ngp.ru<\/a><\/strong><\/em>
Sviridova, Tatiana A. \u2013 chief geologist, LLC Krasnoyarskgazprom neftegazproekt\", t.sviridova@krskgazprom-ngp.ru <\/strong><\/em>t.sviridova@krskgazprom-ngp.ru<\/a><\/strong><\/em>

<\/em><\/strong>\u0423\u0414\u041a 622.24

Key words: <\/strong><\/em>shallow gas, field, high resolution seismic survey, risk of gas accumulations, decision matrix, well design, design documentation, engineering solutions, pilot wellbore (hole).<\/p>\n

The paper concerns the issues of offshore well design and drilling, namely, the presence of shallow gas. To prevent accidental penetration of shallow gas accumulation areas, special attention is paid to the preparation for offshore well drilling. Engineering surveys will necessarily include high resolution seismic surveys of the upper part of the section in order to assess the risk of shallow gas occurrence. The paper provides a decision matrix for the selection of drilling locations in conditions of potential presence of shallow gas, wellhead design options for the various depths of potential shallow gas accumulations and well drilling solutions. Consideration is given to a possibility of drilling pilot wells in the centres of production drilling areas of offshore fields.<\/p>\n

TECHNICAL AND TECHNOLOGICAL ASPECTS OF WELL PLANNING AND DRILLING IN THE PRESENCE OF SHALLOW GAS ON THE SHELF OF THE SEA OF OKHOTSK

<\/strong>Petrenko, Vadim E. \u2013 head of division, PJSC Gazprom, V.Petrenko@adm.gazprom.ru<\/a>
Oganov, Garry S. \u2013 Dr.Tech.Sci., professor, first deputy general director, LLC Krasnoyarskgazprom neftegazproekt», <\/strong><\/em>g.oganov@krskgazprom-ngp.ru<\/a><\/strong><\/em>
Sviridova, Tatiana A. \u2013 chief geologist, LLC Krasnoyarskgazprom neftegazproekt», <\/strong><\/em>t.sviridova@krskgazprom-ngp.ru<\/a><\/strong><\/em>
<\/em><\/strong><\/a>
Key words:<\/strong> shallow gas, field, high resolution seismic survey, risk of gas accumulations, decision matrix, well design, design documentation, engineering solutions, pilot wellbore (hole).<\/p>\n

The paper concerns the issues of offshore well design and drilling, namely, the presence of shallow gas. To prevent accidental penetration of shallow gas accumulation areas, special attention is paid to the preparation for offshore well drilling. Engineering surveys will necessarily include high resolution seismic surveys of the upper part of the section in order to assess the risk of shallow gas occurrence. The paper provides a decision matrix for the selection of drilling locations in conditions of potential presence of shallow gas, wellhead design options for the various depths of potential shallow gas accumulations and well drilling solutions. Consideration is given to a possibility of drilling pilot wells in the centres of production drilling areas of offshore fields.<\/p>\n

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