24/04/2017
Press release: Gazprom Neft drills first ever multi-hole “fishbone” well on the Arctic Shelf
The first ever multi-hole “fishbone” well involving multiple horizontal branches has been drilled and commissioned at the Prirazlomnaya offshore rig — the only project on the Russian Arctic shelf at which commercial oil production is currently ongoing. The trajectory chosen for the wells allows significantly greater coverage of oil-bearing sections of the strata. The new well represents the fourth injection well at Prirazlomnaya — the platform having 11 wells currently in operation: six production wells, four injection wells, and one absorption well.
A multi-hole well with a fishbone trajectory does not require the construction of separate wells for each horizontal shaft, thereby reducing the extent of works required, and subsequent drilling costs. Each horizontal section, directed at a specific oil-bearing section of the strata, increases the injection capacity of the well, as well as the drainage area.
The horizontal branches having been created through open-hole cutting and shearing, TAML (Technology Advancement for Multi-Laterals) criteria categorise this new well on the Russian Arctic shelf as among the most complex multi-barrel wells in its construction. The process of drilling multi-hole fishbone wells is more labour-intensive than drilling traditional horizontal wells, since the main offshoots and the motherbore have a higher drilling difficulty index (DDI).
Andrey Patrushev, Deputy CEO for Offshore Development, Gazprom Neft, commented: “As a result of the seamless work of the Gazprom Neft Shelf team, the additional horizontal shafts were drilled all in one go, five days ahead of schedule. The most cutting-edge technologies — which are both effective and safe — have been used in developing what is a unique project on the Russian Arctic shelf.”
Другие новости этого раздела:
23/01/2024
Mosaic ожидает спрос на удобрения в Бразилии в объеме 46 миллионов тонн в этом году
24/09/2022
Первая партия низкоуглеродного аммиака отправилась из Абу-Даби в Германию
18/11/2021
Acron to Reduce UAN Output in Favour of Dry Fertilisers
24/10/2021
«Омский каучук» обновил производство кумола и изопропанола
«Сибур» одобрил гарантии финансирования «Амурского ГХК» на 10 млрд $
Mitsubishi Chemical покупает патент полиэфира из биомассы у Mitsui
23/07/2021
NikoMag will increase production capacity of its magnesium hydroxide plant
23/04/2021
Uniper закроет 10% потребности Германии в зеленом водороде
02/04/2020
Production stopped at fertiliser units at Taloja in Maharashtra
11/03/2020
LANXESS achieves full-year target for 2019
02/03/2020
The Mosaic Company reported a net loss of US$1.07 billion for full year 2019
12/02/2020
28/08/2019
Asian Helsinki Chemicals Forum will take place 24-25 oct 2019
24/05/2019
Helsinki Chemicals Forum took place in the capital of Finland
29/03/2019
Press release: Lukoil CEO and Iraq Prime Minister discuss future cooperation