This paper analyzes the various selection methods of integrated template structures (ITSs) for use in the Arctic environment. First, an analysis of several actual projects is carried out, with the specific features of each described thoroughly. An important part of the work is devoted to the requirements of ITSs conceived in relevant NORSOK (Norsk Sokkels Konkuranseposisjon), International Organization for Standardization (ISO), and DNV (Det Norske Veritas) standards. The main elements of subsea production modules are examined in this work, along with their specific characteristics and components. Operation and installation of subsea modules in the Barents Sea are also analyzed in this paper. Four scenarios, with differing numbers of ITSs (two, three, four, and six) and differing quantities of well slots in each, are considered. For each scenario, a study of related marine operations (required for installation) is performed, and a program for installation-cost estimates is developed, resulting in the determination of an optimal design for the ITSs. Various parameters affecting the cost of subsea infrastructure are analyzed and studied from different perspectives (e.g., geometrical well-pattern systems, distance between drilling slots, drilling and construction costs). Risk analyses of the threats and consequences involved in the process are performed, and risk-assessment matrices and mitigation actions are established. As a result, a model for selecting an optimal ITS for the Arctic/Sub-Arctic region is created.

In this paper an analysis of the selection of integrated template structures for the arctic environment is presented. First of all, an analysis of several actual projects has been carried out, where their specifics were thoroughly studied. One of the important parts of the work was devoted to the requirements to integrated template structures conceived in relevant NORSOK, ISO and DNV standards. Arctic metocean conditions that can affect selection, installation and the operational conditions of templates are analyzed. The Main elements of Subsea Production Modules are considered in the work, their specific characteristics and components.Operations and installation of subsea modules in Barents Sea are considered in the paper. Four scenarios with different numbers of integrated template structures (2, 3, 4 and 6) and different numbers of wellslots in each were analyzed. For each scenario an analysis of related marine operations for the subsea modules installation was carried out. A program for installation cost estimates was built that enabled us to find the optimal scenario for the integrated template structures design. Various parameters affecting the cost of subsea infrastructure were analyzed and studied from different perspectives, e.g. geometrical well pattern system, the distance between drilling centers, drilling and construction costs, etc. Risk analysis regarding the threats and consequences is also performed; risk assessment matrices and mitigation actions are established. As a result, a model for selecting an optimal Integrated Template Structure for the arctic/subarctic regions was built.

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