Title:
METHOD FOR STAGE-BY-STAGE PRESSURE REDUCTION OF THREE-PHASE FLUID AND DESIGN METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/101213
Kind Code:
A1
Abstract:
Disclosed is a method for the stage-by-stage pressure reduction of a three-phase fluid, wherein the three-phase fluid flows through pressure-reducing valves of at least two stages for the completion of pressure reduction in order to separate light components, the pressure of the three-phase fluid before the first pressure reduction is ≥ 15 MPa, the pressure of the three-phase fluid after the last pressure reduction is ≤ 5 Mpa, the content of each of a gas phase, a liquid phase and a solid phase in the three-phase fluid is ≥ 1 wt％. In the method for the stage-by-stage pressure reduction of the three-phase fluid, the fluid flows through pressure-reducing valves of at least two stages in order to separate light components, and this stage-by-stage pressure reduction reduces the pressure drop magnitude of each stage and can directly substantially decrease the degrees of expansion-type wearing and cavitation-type wearing on equipment and valves. Further disclosed are a use of the above-mentioned method for the stage-by-stage pressure reduction of a three-phase fluid and a design method therefor.
Inventors:
LI SUAN (CN)
DENG QINGYU (CN)
WANG JINGYU (CN)
DENG QINGYU (CN)
WANG JINGYU (CN)
Application Number:
PCT/CN2016/074091
Publication Date:
June 22, 2017
Filing Date:
February 19, 2016
Export Citation:
Assignee:
CATECH TECH CO LTD (CN)
International Classes:
C10G31/00; C10G1/00; C10G67/02
Foreign References:
| CN1888018A | 2007-01-03 | |||
| CN1172146A | 1998-02-04 | |||
| CN102212388A | 2011-10-12 | |||
| CN104449824A | 2015-03-25 | |||
| CN204752627U | 2015-11-11 | |||
| US4673485A | 1987-06-16 |
Attorney, Agent or Firm:
HAIHONG JIACHENG INTELLECTUAL PROPERTY & PARTNERS (CN)
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