Pipeline telescopic joint

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to one of the first pipe section and the second pipe section, wherein:
• the end assembly and the other one of the first pipe section and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the one of the first pipe section and the second pipe section, and
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section;
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces;
• and
• a stroke block releasably fixed to a portion of the first pipe section arranged around the second pipe section.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to one of the first pipe section and the second pipe section, wherein:
• the end assembly and the other one of the first pipe section and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the one of the first pipe section and the second pipe section, and
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section;
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces;
• and
• an annular support and a third pipe section fixed to the second pipe section by the annular support, the third pipe section having a third diameter greater than the first diameter of the first pipe section, wherein the end assembly is fixed to the first pipe section and comprises a first annular wall which bounds a first annular seat together with the ring and the cylindrical face of the second pipe section, and a second annular wall which bounds a second annular seat together with the ring and a cylindrical face of the third pipe section.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to one of the first pipe section and the second pipe section, wherein:
• the end assembly and the other one of the first pipe section and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the one of the first pipe section and the second pipe section, and
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section;
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces;
• and
• two second pipe sections and two end assemblies, wherein the first pipe section extends in a longitudinal direction over a length, and the two second pipe sections and the two end assemblies extend in directions opposite to each other.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to the first pipe section, wherein:
• the end assembly and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the first pipe section, wherein the ring defines a through-opening to enable pressure inside the annular seat to be measured,
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section, and
• an annular element releasably fixed to the ring bounding the annular seat together with an external cylindrical face of the second pipe section and the annular wall;
• and
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to the first pipe section, wherein:
• the end assembly and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the first pipe section,
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section,
• an annular element releasably fixed to the ring bounding the annular seat together with an external cylindrical face of the second pipe section and the annular wall, and
• a plurality of tie rods, each tie rod is fixed to the annular element and is associated with a stroke block, the ring being fixed to the second pipe section defining a plurality of through-openings in which the plurality of tie rods are slidingly inserted to limit the sliding of the second pipe section relative to the first pipe section;
• and
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to the first pipe section, wherein:
• the end assembly and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the first pipe section,
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section, and
• an annular element releasably fixed to the ring bounding the annular seat together with an external cylindrical face of the second pipe section and the annular wall;
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces;
• and
• two second pipe sections and two end assemblies, wherein the two second pipe sections and the two end assemblies extend in directions opposite to each other.

A pipeline telescopic joint configured to compensate for pipeline dimensional changes, the pipeline telescopic joint comprising:

• a first pipe section having a first diameter;
• a second pipe section having a second diameter smaller than the first diameter, the second pipe section arranged at least partly within the first pipe section and slidingly coupled to the first pipe section;
• an end assembly fixed to the first pipe section, wherein:
• the end assembly and the second pipe section define an annular seat, and
• the end assembly comprises:
• a ring welded to the first pipe section,
• an annular wall releasably fixed to one end of the ring to bound the annular seat together with a cylindrical face of the ring facing a cylindrical face of one of the first pipe section and the second pipe section,
• an annular element screwed to the ring,
• a stroke block, and
• a third pipe section arranged around the second pipe section and fixed to the annular element and the stroke block;
• and
• an annular gasket housed within the annular seat and comprising a polymeric casing and a spring housed within the polymeric casing, wherein the polymeric casing is in contact with the facing cylindrical faces.