摘要:
The disclosure includes a device for mixing a multiphase fluid which includes a mixing chamber; a mixing element translatable along a central axis of the mixing chamber, the distance between a point of the inner surface of the mixing chamber and the central axis being occupied between 85% and 95% by the mixing element along at least one section transverse to the central axis.
摘要:
The invention relates to a method for measuring pressure in an underground formation containing a fluid, comprising the following consecutive steps: establishing fluid communication between a test chamber arranged in a drilling well and the underground formation, via a flowline; moving a piston in the test chamber so as to suction fluid into the test chamber; ensuring fluid isolation of the test chamber relative to the flowline; measuring the pressure in the flowline; and repeating the preceding steps. The invention also relates to a device for measuring pressure in an underground formation containing a fluid adapted for the implementation of said method.
摘要:
The application discloses a process and apparatus for characterising the evolution of a reservoir by co-analyzing the changes in the propagation times and seismic amplitudes of seismic reflections. The method comprising the steps of: providing a base survey of the reservoir with a set of seismic traces at a first time; and providing a monitor survey of the reservoir, taken at a second time, with a set of seismic traces associated to the same positions as in the base survey. The evolution of the reservoir is then characterised by inversion to obtain an estimate of the changes having occurred in the time interval between base and monitor surveys, the inversion being performed using at least some seismic traces for which no assumption is made that the energy is propagating vertically. In a main embodiment, inversion is performed by minimising a function which includes a term dependent on the incident angle of the seismic reflections.
摘要:
The invention relates to a method for sampling a sulphur-containing solid product including supplying a gas flow comprising hydrogen sulphide, bringing the gas flow into contact with a solid reagent and reacting the solid reagent with the hydrogen sulphide contained in the gas flow, the reaction fixing the sulphur of the hydrogen sulphide by forming a sulphur-containing solid product which is different in color from the solid reagent, and recovering the sulphur-containing solid product. The invention also relates to a device suitable for the implementation of this method.
摘要:
A unit for establishing contact between a liquid and a gas includes: a chamber having a vertical axis; a first series of contact sections disposed along the length of the vertical axis of the chamber; a second series of contact sections disposed along the length of the vertical axis of the chamber, alternated with the contact sections of the first series; and a liquid circulation system designed to circulate a liquid in the contact sections of the first series and in the contact sections of the second series in a separate manner.
摘要:
A water treatment method includes: filtering water in a membrane filtration unit including at least one membrane filtration module; collecting a permeate and collecting a retentate at the outlet of the membrane filtration module; withdrawing solid materials and/or hydrocarbons contained in the retentate, in order to provide a treated retentate; recycling the treated retentate at the inlet of the membrane filtration module; providing a treated water flow from the permeate from membrane filtration module(s). An installation adapted for applying this method is also provided.
摘要:
The invention relates to a method for producing steam comprising the successive steps of: providing feedwater containing carbonate and/or sulfate ions; adding a crystallizing reagent able to react with carbonate and/or sulfate ions to the feedwater, in order to produce carbonate and/or sulfate crystals; filtering the feedwater with a ceramic membrane to produce a permeate stream; supplying the permeate stream to a boiler; and generating steam in the boiler. The invention also relates to an installation adapted for implementing said method, as well as to a process for extracting hydrocarbons from a subterranean formation using the abovementioned method for producing steam.
摘要:
A method and system for conciliating hydrocarbon reservoir model data. In one implementation, a set of local permeability values of a reservoir and an apparent permeability value of the reservoir are provided. A power value is numerically calculated from a mean power formula that relates the apparent permeability value of the reservoir to the local permeability values of the set via the power. The calculated power value is compared with a reference value. Depending on the outcome of the comparison, the set of local permeability values is modified.
摘要:
The invention relates to applications of a cellulase of Pseudomonas sp. ND137, functional fragments and/or variants and engineered forms thereof, in the context of industrial bioprocessing, more particularly solvent production.
摘要:
Described herein are molecules, constructs and methods for the production and secretion of polypeptides of interest by host cells, preferably bacterial host cells, and more particularly gram positive bacteria. In particular, the present invention is related to a polynucleic acid encoding a fusion protein and to uses thereof for the secretion of heterologous or homologous polypeptides of interest by a bacterial host cell, preferably Clostridium bacteria. The present invention further relates to methods and constructs for the production and secretion of heterologous or homologous polypeptides of interest proteins by host cells using such polynucleic acids and fusion proteins.