System and method for generating a change in pressure proportional to fluid viscosity
AssigneeFlowpro Well Technology a.s.
InventorKristian Brekke
Life of this patent
Estimating the term…
Abstract
A system and method for generating a change in pressure proportional to fluid viscosity is disclosed herein. The system can comprise a first pilot stream, a second pilot stream, and a pressure sensing device that reads a differential pressure across a first junction on the first pilot stream and a second junction on the second pilot stream. The first junction is between a first section having a first predominant pressure loss characteristic, and a second section having a second predominant pressure loss characteristic. Similarly, the second junction can be between a third section having a third predominant pressure loss characteristic and a fourth section having a fourth pressure loss characteristic.
Claims12
A viscosity dependent pressure differential system comprising
- a first pilot stream connectable to a main stream, said first pilot stream comprising
- a first inlet connected to said main stream;
- a first section comprising a first predominate pressure loss characteristic, connected to said first inlet;
- a first junction connected to said first section;
- a second section comprising a first predominate pressure loss characteristic, connected to said first junction;
- and
- a first outlet that connects said second section and to said main stream;
- a second pilot stream connectable to a main stream, said second pilot stream comprising
- a second inlet connected to said main stream;
- a third section comprising a third predominate pressure loss characteristic, connected to said tinlet;
- a second junction connected to said third section;
- a fourth section comprising a fourth predominate pressure loss characteristic, connected to said third junction;
- and
- a second outlet that connects said second section and to said main stream;
- and
- a pressure sensing device connecting that reads a differential pressure across said first junction and said second junction.
A method of measuring a differential pressure, comprising
- measuring a differential pressure between a first junction and a second junction, said first junction between a first pilot stream first section having a first predominant pressure loss characteristic, and a second section having a second predominant pressure loss characteristic, said second junction between a second pilot stream first section having a third predominant pressure loss characteristic and a second pilot stream second section having a fourth predominant pressure loss characteristic.
Dependencies are inferred from the claim text.