Features of the development of a well construction project and offshore field development in complicated conditions

Introduction. Development of design documentation for offshore well construction in the current market conditions is a multifaceted, lengthy, and complex process. Therefore, starting from the conceptual model development stage, it is essential to leverage accumulated experience in this field and evaluate project implementation methods.

Aim. The main objective of the Project described in this article is the construction of directional gas production wells using a cluster method using offshore fixed platforms or floating drilling rigs in difficult conditions due to the presence of carbon dioxide and hydrogen sulfide aggression in the produced fluid at the field, as well as due to difficult ice conditions in the area of the offshore field planned for development.

Materials and methods. Due to the need to consider various project implementation options and select the most promising ones within the framework of a Project to develop deposits or promising structures on the shelf, an approach was proposed that provides for the identification of separate stages of the sequential conceptual design of offshore wells, including an assessment of possible risks associated with complicated conditions that must be taken into account in this process.

The result. The article describes approaches to conceptual design that can be used in similar projects for the development and development of offshore fields in difficult conditions, and will allow a comprehensive review and analysis of various aspects when making decisions in favor of a particular development option, without resorting to detailed design.

Conclusion. The approach proposed in this paper can be applied in the conceptual design of offshore well construction by engineering, oil and gas companies, and can also be used in the training of specialists from oil and gas educational institutions. 

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