Orienting perforation gun assembly
AssigneeDynaEnergetics Europe GmbH
InventorChristian Eitschberger
Life of this patent
Estimating the term…
Abstract
A perforating gun assembly that orients one or more shaped charges within a well includes a housing and an orienting internal assembly configured to be disposed within a longitudinal bore of the housing. The orienting internal assembly may include at least one shaped charge holder or charge tube, a rotation support system, a detonator holder and/or a detonator. The rotation support system may be configured so that the detonator holder and/or detonator rotate together as a whole with the at least one shaped charge holder or charge tube. The rotation support system may include at least one bearing assembly, a plurality of rollers, or combinations thereof. The orienting internal assembly may be configured for gravitational orientation.
Claims15
A self-orienting internal assembly of a perforating gun system having a perforating gun housing, the self-orienting internal assembly comprising:
- a shaped charge;
- a shaped charge holder, the shaped charge holder supporting the shape charge such that the shaped charge is in a fixed rotational relationship with the shaped charge holder;
- a detonator coupled to the shaped charge, wherein the shaped charge and the detonator are configured to rotate together relative to the perforating gun housing;
- and
- a plurality of rollers disposed on the shaped charge holder;
- wherein the shaped charge holder, the shaped charge, and the detonator are configured to rotate together relative to the perforating gun housing.
A perforating gun assembly, comprising:
- a housing defining a longitudinal bore;
- a shaped charge rotatably supported in the longitudinal bore of the housing;
- a charge tube rotatably supported in the housing and supporting the shaped charge;
- a detonator in a fixed rotational relationship with the shaped charge, wherein the shaped charge and the detonator are configured to rotate relative to the housing about a central longitudinal axis defined by the housing;
- and
- a plurality of rollers disposed on the charge tube and in contact with an internal surface of the housing;
- wherein the charge tube, the shaped charge, and the detonator are configured to rotate together relative to the housing.
Dependencies are inferred from the claim text.