Compact wellhead system with built-in production capability

摘要

A production system for producing hydrocarbons from a subterranean reservoir includes a wellhead including a housing and a head. The housing has a central axis, an upper end, a lower end, and an inner surface. The inner surface defines a passage extending axially through the housing. In addition, the inner surface of the housing includes an annular recess positioned between the upper end and the lower end. The housing also includes a first production port extending radially through the housing. Further, the system includes a casing hanger disposed within the housing. The casing hanger has an upper end, a lower end, an outer surface, and a through bore extending from the upper end to the lower end. The casing hanger also includes a plurality of circumferentially-spaced ports extending radially through the casing hanger from the through bore to the annular recess of the housing.

主权项

1. A production system for producing hydrocarbons from a subterranean reservoir, the system comprising:
a wellhead including a housing and a head mounted to the housing; wherein the housing has a central axis, an upper end, a lower end configured to be directly attached to an upper end of a primary conductor, and an inner surface extending axially between the upper end and the lower end the inner surface defining a passage extending axially through the housing; wherein the inner surface of the housing includes an annular recess axially positioned between the upper end and the lower end; wherein the housing includes a first production port extending radially through the housing from the annular recess to a radially outer surface of the housing; wherein the upper end of the casing hanger comprises an annular landing surface; a casing hanger disposed within the housing, the casing hanger having an upper end, a lower end, an outer surface, and a through bore extending from the upper end to the lower end; wherein the casing hanger includes a plurality of circumferentially-spaced ports extending radially through the casing hanger from the through bore to the annular recess of the housing; a tubing hanger disposed within the housing, the tubing hanger having an upper end, a lower end, an outer surface and a through bore extending from the upper end to the lower end; wherein the tubing hanger is seated against the annular landing surface of the casing hanger.