John Boxall
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Upgrade of the MARI spectrometer at ISIS Open
The MARI direct geometry time-of-flight neutron spectrometer at ISIS has been upgraded with an $m=3$ supermirror guide and new detector electronics. This has resulted in a flux gain of ${\approx}6{\times}$ at $λ=1.8$ Å, and improvements on…
Bounds on the number of torsion points of given order on curves embedded in their jacobians Open
Working over an algebraically closed field of arbitrary characteristic we study, for integers $N\geq 2$ and $g\geq 2$, the set of points of order dividing $N$ lying on an irreducible smooth proper curve of genus $g$ embedded in its jacobia…
Gas Hydrate Thermodynamic Inhibition with MDEA for Reduced MEG Circulation Open
In the production of natural gas, (mono)ethylene glycol (MEG) is commonly added to the well stream to prevent the formation of clathrate natural gas hydrates. A reduction in the amount of MEG required for hydrate prevention in industrial s…
View article: GAS HYDRATE FORMATION AND DISSOCIATION FROM WATER-IN-OIL EMULSIONS STUDIED USING PVM AND FBRM PARTICLE SIZE ANALYSIS
GAS HYDRATE FORMATION AND DISSOCIATION FROM WATER-IN-OIL EMULSIONS STUDIED USING PVM AND FBRM PARTICLE SIZE ANALYSIS Open
An understanding of the mechanism for hydrate formation from water-in-oil emulsions is integral for progressing from preventing hydrate formation through expensive thermodynamic means to hydrate blockage prevention. This work presents hydr…
View article: HYDRATE BLOCKAGE POTENTIAL IN AN OIL-DOMINATED SYSTEM STUDIED USING A FOUR INCH FLOW LOOP
HYDRATE BLOCKAGE POTENTIAL IN AN OIL-DOMINATED SYSTEM STUDIED USING A FOUR INCH FLOW LOOP Open
An understanding of the blockage potential for an oil dominated system is an important step in moving from hydrate prevention to hydrate management. To better understand this problem a series of experiments were performed by varying the wa…
View article: A STUDY OF HYDRATE FORMATION AND DISSOCIATION FROM HIGH WATER CUT EMULSIONS AND THE IMPACT ON EMULSION INVERSION.
A STUDY OF HYDRATE FORMATION AND DISSOCIATION FROM HIGH WATER CUT EMULSIONS AND THE IMPACT ON EMULSION INVERSION. Open
Methane hydrate formation and dissociation studies from high water content (>60 vol% water) – crude oil emulsions were performed. The hydrate and emulsion system was characterized using two particle size analyzers and conductivity measurem…
View article: HYDRATE PLUG FORMATION PREDICTION TOOL – AN INCREASING NEED FOR FLOW ASSURANCE IN THE OIL INDUSTRY
HYDRATE PLUG FORMATION PREDICTION TOOL – AN INCREASING NEED FOR FLOW ASSURANCE IN THE OIL INDUSTRY Open
Hydrate plugging of hydrocarbon production conduits can cause large operational problems resulting in considerable economical losses. Modeling capabilities to predict hydrate plugging occurrences would help to improve facility design and o…