Dual barrier open water well completion systems

摘要

A well completion system in accordance with one or more embodiments includes a shallow set barrier installed in an upper completion section of a well, a deep set barrier installed in a lower section of the well, a first sensor disposed to gauge a pressure in a first area between the deep set barrier and the shallow set barrier and a communication device to communicate the gauged pressure. The lower section may be located below a production completion when it is installed in the upper completion section.

主权项

1. A well completion system, comprising:
a shallow set barrier (56) installed in an upper section (58) of a well (10) extending down from a wellhead (16) to a formation (9); a deep set barrier (54, 114) installed in a lower section (28) of the well, the lower section located below a production completion when it is installed in the upper section; a first sensor (64, 328) disposed to gauge a pressure in a first area (62) between the deep set barrier and the shallow set barrier; and a communication device (62, 78, 124) coupled with the first sensor to communicate the gauged pressure wherein the deep set barrier is formed by a lower completion (138) comprising:
an upper packer (30) installed in the lower section of the well,a lower packer (138) installed below the upper packer;an intermediate barrier valve (44) located between the upper packer and the lower packer, the intermediate barrier valve and the upper packer forming an upper deep set barrier (114); anda lower barrier valve (36) located below the lower packer, the lower barrier valve and the lower packer forming a lower deep set barrier (112).