HORIZONTAL VERTICAL DEEPWATER TREE

摘要

A subsea hydrocarbon production system comprises a tubing hanger which is positioned at an upper end of a well bore, a tubing string which extends from the tubing hanger into the well bore and is fluidly connected to the tubing hanger production bore, and a christmas tree which is positioned above the tubing hanger. The christmas tree comprises a production bore which is fluidly connected to the tubing hanger production bore, a production outlet which is connected to the production bore, a first barrier element which is positioned in the production outlet, and a first closure device which is positioned in the production bore above the production outlet, and a outlet. In this manner access from above the christmas tree through the production bore does not require passage through a barrier element.

主权项

1. A subsea hydrocarbon production system which comprises:
a tubing hanger which is positioned at an upper end of a well bore, the tubing hanger including a tubing hanger production bore; a tubing string which extends from the tubing hanger into the well bore and is fluidly connected to the tubing hanger production bore; a christmas tree which is positioned above the tubing hanger and which comprises:
a production bore which is fluidly connected to the tubing hanger production bore;a production outlet which is connected to the production bore;a first barrier element which is positioned in the production outlet; anda first closure device which is positioned in the production bore above the production outlet;wherein access from above the christmas tree through the production bore does not require passage through a barrier element.