«Onshore and offshore oil and gas well construction»

Increase of BS8 reservoir development efficiency at the drilling stage by drilling multilateral wells

UDC: 622.276
DOI: -

Authors:

¹ Empress Catherine II Saint Petersburg Mining University, Saint Petersburg, Russia
² Russian Academy of Natural Sciences, Moscow, Russia
³ Yugra State University, Khanty-Mansiysk, Russia
⁴ Kuban State Technological University, Krasnodar, Russia

Keywords: sidetracking, optimal multilateral wells design, calculation of the optimal length and number of horizontal wellbores, calculation of fluid inflow to a horizontal wellbore, dependence of flow rate on horizontal wellbore length, horizontal and multilateral wells profile, modeling of various wells configurations

Annotation:

Commercial operation of the oil field began in 2016 being currently in the initial stage of development by now. Nearly a dozen new production and injection wells are drilled and commissioned annually. Despite the recent start of oil production from the reservoirs, significant reservoir pressure drawdowns are already being observed. As a result, early breakthrough of bottom waters to production wells is being observed at the main BS8 facility, negatively impacting hydrocarbon recovery rates. Consequently, the search for new methods and technologies to optimize the use of the reservoir energy resources and reduce water-flooding are pressing challenges facing the production company. The authors of the article provide a technical-technological assessment of the application of multilateral wells completion technology, which allows for more uniform pressure distribution in the reservoir, an increase of the dry oil production period and the achievement of high production volumes.

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