Patent ID: 7665532
Filing Date: 2010-02-23
Classification: B21D,E21B,Y10T

Abstract:
1. A pipeline, comprising: a first tubular pipeline member; and a second tubular pipeline member coupled to the first tubular pipeline member in an overlapping relationship; wherein an inner diameter of the first tubular pipeline member is equal to an inner diameter of the second tubular pipeline member; wherein a portion of the first tubular pipeline member overlaps with a portion of the second tubular pipeline member; wherein the portion of the first tubular pipeline member that overlaps with the portion of the second tubular pipeline member comprises a thin walled portion, wherein the thin walled portion of the first tubular pipeline member comprises a compressible annular sealing member; wherein the portion of the first tubular pipeline member that does not overlap with the portion of the second tubular pipeline member comprises a thick walled portion, and wherein the thin wall section is not threaded.