Check patentability & draft patents in minutes with Patsnap Eureka AI!

Multiphase mass flow meter with variable venturi nozzle

A technology of multiphase flowmeter, venturi tube, applied in the field of multiphase mass flowmeter with adjustable venturi nozzle, which can solve the problem of dangerous and expensive replacement, time-consuming operation, complexity, etc.

Inactive Publication Date: 2004-11-03
SCHLUMBERGER OVERSEAS SA
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems with measuring the flow rate of petroleum effluents are complicated by the fact that such effluents are usually composed of three phases and because of the changing flow regimes they experience (flow, fluid friction, pressure, upstream pipe geometry)
This makes replacement risky, expensive, and time-consuming to operate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multiphase mass flow meter with variable venturi nozzle
  • Multiphase mass flow meter with variable venturi nozzle
  • Multiphase mass flow meter with variable venturi nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Petroleum effluents generally consist of a heterogeneous mixture of liquid oil, gas (hydrocarbons) and water. The following symbols are used hereinafter: symbols Q and q represent mass flow and volume flow, respectively; symbol ρ represents density; symbols α and γ represent the static and dynamic ratios of different phases; o , w , g and l Respectively refer to oil, water, gas and liquid phase (here the liquid phase is oil and water mixed together), and the mark m represents a fluid mixture.

[0023] Referring now to FIG. 1, there is shown a venturi-based flowmeter known in the prior art, the device comprising a pipe section 10 having a constricted venturi section 110, the narrowest part of which is called the throat. . In the example shown, the tube 100 section is arranged vertically, with the effluent flowing upwards and indicated by arrow F.

[0024] The constriction of the flow section in the Venturi results in a pressure drop Δp between the location 130 (l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An insert device for narrowing a throat of a Venturi based multiphase flow meter is shaped to be inserted in the throat. The insert comprises an entrance window and an exit window for a radiation beam generated at a periphery of the throat. The insert allows pressure takeoff to be made in a conventional way. Several examples of insert device are described including a rod, a tubular and a tuning fork insert.

Description

technical field [0001] The present invention generally relates to a measurement method for determining at least one property of an oil well effluent consisting of a multiphase fluid, generally comprising three phases: two liquid phases - crude oil and water - and a gaseous phase. In particular, the invention relates to a method of measurement using a composition meter connected or not connected to a Venturi flow meter. Background technique [0002] The petroleum industry's optimization of reservoir productivity relies on evaluating well effluents at regular intervals in terms of volume (flow rate) and composition (ratio of phases). This allows a decision as to which correct action needs to be taken. However, the problems with measuring the flow rate of petroleum effluents are complicated by the fact that such effluents are usually composed of three phases and because of the changing flow regimes they experience (flow, fluid friction, pressure, upstream pipe geometry). The...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/44G01F1/74G01F1/88
CPCG01F1/74G01F1/88G01F1/44
Inventor 杰勒德·西格拉尔
Owner SCHLUMBERGER OVERSEAS SA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com