公开(公告)号：US20150275613A1

公开(公告)日：2015-10-01

申请号：US14675486

申请日：2015-03-31

Applicant: Cameron International Corporation

Inventor： Kevin Peter Minnock ,  Abinesh Gnanavelu ,  David Francis Anthony Quin ,  Padraic Edward McDonnell ,  Edmund Peter McHugh ,  Conor James Gray ,  Michael David Mullin ,  Stephen A Chambers ,  Raymond Nicholas Smyth ,  Declan Elliott ,  Finbarr William Evans

IPC: E21B33/076

CPC classification number: E21B33/076 ,  E21B33/0355 ,  E21B43/20

Abstract: A system includes a subsea chemical injection system configured to inject a chemical into a well, wherein the choke trim comprises a first cylinder comprising a first plurality of spiral flow paths, a second cylinder comprising a second plurality of spiral flow paths, wherein the first cylinder is disposed within the second cylinder, and an outer portion comprising a plurality of axial passages, wherein the second cylinder is disposed within the outer portion.