OUTER TUBE FOR A PERFORATING GUN

An outer tube for a perforating gun is provided that includes an inner wall and an outer wall and also a wall thickness (D) and a length (L), wherein the outer tube has a hardness over its entire longitudinal extent along the length (L) and its transverse extent along the wall thickness (D), wherein...

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Bibliographic Details
Main Authors BALUN Jozef, ENGEL Waldemar
Format Patent
LanguageEnglish
Published 26.10.2017
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:An outer tube for a perforating gun is provided that includes an inner wall and an outer wall and also a wall thickness (D) and a length (L), wherein the outer tube has a hardness over its entire longitudinal extent along the length (L) and its transverse extent along the wall thickness (D), wherein the hardness of the outer tube is reduced, in at least one region, to an extent (T) measured from the outer wall to the inner wall, wherein, in this region, the outer tube has a reduced hardness (HV) on its outer wall, said reduced hardness being reduced in this region by at least 5% in relation to the hardness (H) of the inner wall.
Bibliography:Application Number: US201615137892