Curved casing pipe with timed connections

摘要

A casing pipe assembly can include a first casing pipe having a top coupling member and a pipe curvature, where the top coupling member has first threads in a first direction, and where the pipe curvature substantially corresponds to a wellbore curvature. The casing pipe assembly can also include a second casing pipe having a bottom coupling member and substantially the same pipe curvature, where the bottom coupling member has second threads in a second direction. The casing pipe assembly can further include a coupling device having a bottom coupling member and a top coupling member, where the bottom coupling member has third threads in the first direction that threadably couple to the first threads of the first casing pipe, and where the top coupling member has fourth threads in the second direction that threadably couple to the second threads of the second casing pipe.

主权项

1. A casing pipe assembly, comprising:
a first casing pipe comprising a first body and a first top coupling member disposed on a top end of the first body, wherein the first body has a pipe curvature, wherein the first top coupling member comprises first threads oriented in a first direction, and wherein the pipe curvature substantially corresponds to a wellbore curvature of a portion of a wellbore in a subterranean formation; a second casing pipe comprising a second body and a first bottom coupling member disposed on a bottom end of the second body, wherein the second body has substantially the pipe curvature, and wherein the first bottom coupling member comprises second threads oriented in a second direction; and a first coupling device comprising a bottom end and a top end, wherein the bottom end of the first coupling device comprises third threads oriented in the first direction and that threadably couple to the first threads of the first top coupling member of the first casing pipe, and wherein the top end of the first coupling device comprises fourth threads oriented in the second direction and that threadably couple to the second threads of the first bottom coupling member of the second casing pipe.