Additive manufacture of wellbore lining

A method of wellbore casing liner printing, the method comprising:

• disposing a casing liner print system in an annular region located between a casing pipe disposed in a wellbore of a hydrocarbon well and a wall of the wellbore, the casing liner print system comprising:
• a cylindrical collar disposed over the casing pipe;
• a casing liner print head coupled to the cylindrical collar, the casing liner print head comprising a row of nozzles configured to eject casing liner integrated structure material into the annular region, the cylindrical collar and the casing liner print head configured to rotate together about the casing pipe, the row of nozzles arranged in series along a lateral axis extending radially from the cylindrical collar;
• and
• a cementing system comprising a source of cementitious material configured to deposit cementitious material into the contiguous voids formed in the casing liner material;
• operating the casing liner print system such that the cylindrical collar and the casing liner print head rotate together about the casing pipe and the row of nozzles eject casing liner integrated structure material into the annular region to form, in the annular region, a casing liner integrated structure comprising contiguous voids formed in the casing liner integrated structure material;
• and
• operating the cementing system to deposit cementitious material into the contiguous voids formed in the casing liner material to form, in the annular region, a casing liner comprising the casing liner integrated structure material and the cementitious material.