US 11,719,074 B2
Dissolvable plugged nozzle assembly for limited entry liners
Ting Chen, Missouri City, TX (US); and Indranil Roy, Missouri City, TX (US)
Assigned to Damorphe, Inc., Houston, TX (US)
Filed by WellNoz, Houston, TX (US)
Filed on Sep. 2, 2020, as Appl. No. 17/10,804.
Application 17/010,804 is a continuation of application No. 16/847,548, filed on Apr. 13, 2020, abandoned.
Prior Publication US 2021/0317727 A1, Oct. 14, 2021
Int. Cl. E21B 41/00 (2006.01); E21B 33/13 (2006.01)
CPC E21B 41/0078 (2013.01) [E21B 33/13 (2013.01); E21B 2200/08 (2020.05)] 17 Claims
OG exemplary drawing
 
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.