... sulfate (BaSO 4 ) scaling is a frequently occurring phenomenon in the oil and gas industry which can result in significant production losses and increased operational costs. It was widely thought that the main cause for barite scaling is a result of mixing incompatible waters, due to water injection...

... mechanisms. The study concluded further evaluation of inorganic scaling and organic deposits was appropriate, and a flow assurance study was commissioned to evaluate these possible plugging mechanisms. This paper focuses on inorganic scale evaluation. Calcite (CaCO 3 ) and/or barite (BaSO 4 ) scales were...

... produced water discharge remediation of hydrates asphaltene inhibition geologist mineral wax inhibition scale inhibition hydrate inhibition concentration hydrate remediation reservoir barium wax remediation baso 4 inhibitor sulphate seawater breakthrough geology production...

... prediction scenario srf scale remediation baso 4 mp separator prediction node scale risk factor reservoir information composition precipitation One of the major issues faced in the production of Valhall fluids is the presence of solids. Different types of deposits have been reported to pose...

... formed, their size and the surface coverage achieved. ESEM images of the test coupon within the cell were also taken for analysis. From all the comparative experiments performed, it was seen that the EMD had a significant, measurable, and positive effect on BaSO 4 control with a reduction in crystal...

...Methodology The objective of the experiments performed, was to generate BaSO 4 scale in the test apparatus (pipework) by the mixing of two incompatible waters. The mass of scale deposited and its location, were recorded. The results obtained were then compared between a run when the EMD...

... Modelling BaSO 4 scale formation requires some definition of the reaction kinetics which depends on fluid front flowing velocity. Scale formation kinetic can be characterized using a dimensionless number known as Damköhler number, D a ( Equation 3 ), which is a ratio of the reaction rate...

... Modifying the injected water quality by reducing the sulphate (SO 4 2- ) concentration has been adopted in several fields, normally under seawater flooding, to mitigate the sulphate scaling (BaSO 4 , CaSO 4 and SrSO 4 ) risk in the production system. It may also reduce the risk of souring...

... Abstract Barium Sulphate (BaSO 4 ) scale deposition is a serious problem encountered in oilfield operations. The precipitation of BaSO 4 scale has been studied mainly for fields under water flooding. On the other hand, polymer flooding is a mature Enhanced Oil Recovery (EOR) method that has...

... sulphate (BaSO 4 ) scaling risk increases. This work has shown: Careful evaluation of formation water samples/analyses reduces uncertainties associated with water compositions and increases confidence in results and decisions. Underlying geology can influence formation water compositions. Good...

... Oil & Gas scale inhibition precipitation srso 4 McCartney mineral formation water formation water composition Brine prediction Mackay baso 4 reservoir asphaltene inhibition concentration composition Symposium injection water fraction ion exchange reaction Introduction...

... Production Chemistry scale inhibition precipitation composition evaluation sea water injection baso 4 co 2 mineralogy reaction formation water interaction dissolution carbonate reservoir reservoir Introduction The estimation of all the interactions which may occur when CO 2 -WAG...

... method for BaSO 4 scale deposition, several different generic types of inhibitor chemistries, including polymers and phosphonates, were assessed under different levels of turbulence to evaluate their performance on surface deposition. The results showed it is not always true that higher turbulence...

... Abstract The Blane field is a sub-sea oil and gas production development located in the southern part of the North Sea straddling the UK and Norwegian border. The field is expected to produce inorganic scale (BaSO 4 ) when injection water containing sulphate breaks through in the production...

... inhibition water management oilfield chemistry scale inhibition scale remediation production chemistry upstream oil & gas inhibitor caso 4 baso 4 acceptable scale inhibitor scale inhibitor calcium sulphate wax remediation wax inhibition asphaltene remediation remediation of hydrates...

... of hydrates paraffin remediation hydrate remediation hydrate inhibition asphaltene inhibition nucleation mechanism water management oilfield chemistry scale inhibition sid scale inhibitor jar test baso 4 test method scale formation turbidity measurement ultrasonic technique scale remediation...

... baso 4 experiment scale inhibition detpmp paraffin remediation barite crystal production chemistry hydrate inhibition sorbie Background and Introduction. Inorganic mineral scales continue to be a serious concern and expense within the oil production industry. The most common mineral...

... Abstract The Frøy Field, Norwegian North Sea, was closed down in March 2001 but there are plans to re-develop it. Previously, seawater (SW) injection caused persistent BaSO 4 scaling problems in the production wells, so this study was undertaken to determine whether there would be any benefit...

... PW:SW for only 6 weeks, a change in operational circumstances on the Ula Field meant that only 10:90 PW:SW injection water could be supplied for the next 18 months. There was a risk that this might result in unmanageable BaSO 4 scaling conditions in the production wells but the alternative would...

... 3 phosphate ester polymer scale inhibitor chemistry phosphonate baso 4 differential pressure ppm phosphonate feco 3 concentration ppm phosphate ester Detpmp Brine dynamic tube PPCA Introduction Oilfield scales are a conglomeration of several different scales, i.e. calcium...