CPC E21B 41/0078 (2013.01) [E21B 33/13 (2013.01); E21B 2200/08 (2020.05)] | 17 Claims |
1. A dissolvable plugged nozzle assembly (DPNA) for injection of fluids into a well for use with limited entry liners, the DPNA comprising:
a barrel having:
a cylindrical outer surface configured to facilitate mounting within a hole in a cylindrical limited entry liner;
an interior face facing inward relative to the limited entry liner;
an exterior face opposite the interior face;
a sinuous interior profile defining an orifice through the barrel, the sinuous interior profile comprising a lipped opening in the interior face, a concave region adjacent to the lipped opening, a shoulder region adjacent to the concave region, a convex region adjacent to the shoulder region, and a flared opening in the exterior face and adjacent to the convex region; and
a core formed in the barrel and having a complementary shape to the sinuous interior profile of the barrel, wherein the core is dissolvable, wherein the DPNA can withstand a fluid pressure differential of at least 2,500 psi with the core intact.
|