Development of a Method for Selecting a Way of Raw Material Transportation From the Offshore Drilling Platform to the Onshore Infrastructure

The object of research is the process of transportation of mined resources from offshore drilling platforms in the shelf of the seas to onshore reservoirs. One of the most problematic places is the need to choose the means of transport and the method of transporting the extracted hydrocarbons from offshore drilling platforms (ODP) to the onshore infrastructure.Using the method of equivalent values, the limiting values of the use of pipeline transport are established depending on the distance of offshore drilling platforms from the coast.During the study, an algorithm was developed to improve the organization of transportation of hydrocarbons produced in the seas to substantiate the mode of transportation depending on the distance between the ODP and the coast. As well as a reasonable criterion for choosing a vehicle was proved and a system of indicators for the formation of the criterion was considered. Methodical approach for the choice of transport consists of the following steps:indicators of capital, operating and reduced costs for each type of transport are formed;threshold value of the reduced costs for pipeline transport and for the delivery by shuttle tankers and with the help of marine barge-towing vehicles depending on the distance of the ODP from the coast is determined;criterion of the effectiveness of the choice of transportation mode is displayed;indicator of unit costs for marine and pipeline transport is calculated;threshold value of the use of one of several transportation modes is determined.A methodical approach is developed that ensures a reasonable approach to the choice of the transportation mode and type of transport when organizing the delivery of the extracted raw materials from the ODP to the onshore infrastructure, ensuring the lowest unit transportation costs.Compared with similar known methods that are used to select transport for land production and transportation, such methods have not been used in the offshore oil business