...Abstract Scale formation is a very troublesome issue for oil and gas industry, and chemical treatment is a cost effective approach for solving scale formation prevention and control. Monitoring scale inhibitor residual is very critical for inhibitor dosage control on both downstream and upstream...

... the attack by corrosive elements. Similarly, scale inhibitors prevent scaling process by adsorbing on the surface of scale precipitates. Both types of inhibitors are based on surface active organic compounds and they gravitate towards the exciting surfaces. Thus, corrosion inhibitors adsorbed on steel...

...Scale dynamic tube blocking tests Scale inhibitor performance tests were conducted using dynamic tube blocking apparatus at 82°C with a synthetic brine of the mixed water, containing two non-scaling brine components: anion water and cation water. Two water chemistries were selected for the dynamic...

... permeability and flow ability of the surface system. To solve the scale problems of C8 block, nanofiltration sulfate reduction (NFSR) system has been carried out and scale inhibitors were screened. 5 sets of NFSR systems for injection water have been applied to remove high content SO₄²...

... corrosion- and scale inhibitor has been developed. The chemical is a synergistic blend of corrosion inhibitor actives and surfactants for corrosion mitigation and solids control, combined with scale inhibitor and chelating agent for high iron tolerance scale prevention. Scale inhibitor corrosion inhibitor...

... scale inhibitor chemical EOR morphology calcite aragonite vaterite INTRODUCTION Enhanced oil recovery (EOR) by chemical flooding has been demonstrated to increase oil recovery factor in lab studies, pilot testing, and field depolyments. ^{1 - 5} The process involves the injection of three...

...Abstract It is well known that chemical interactions between scale inhibitor (SI) and corrosion inhibitor (CI) might lead to a reduction in the performance efficiency of both chemicals. Scale and corrosion inhibitors are widely used in the oil and gas industry; thus it is very important...

... inhibitor and a combined corrosion and scale inhibitor, for application in the North Sea. The main challenge and focus was addressing the compatibility of neat chemicals with downhole jewelry materials. EXPERIMENTAL PROCEDURE Field conditions and chemical design requirements A complete understanding...

... are not well retained on the rock and it is the phosphate ester chemicals that are more effective and provided the longer squeeze life to its respective MIC value. Comments on the interaction/performance of polymer scale inhibitors will also be made for these low temperature conditions. The implication...

...INTRODUCTION It is known within oil and gas industry that correct experimental design to replicate the scaling conditions in the field is key to the correct selection of scale inhibitor and considerable effort has been expended in this direction. ^{1 , 2 , 3} The impact of dissolved iron...

... that does not perform its intended role. A novel, environmentally acceptable combined corrosion and scale inhibitor containing fully mutually compatible actives has been developed that is effective against calcite scale and also mitigates CO₂ corrosion. Furthermore, the efficacy of the product...

..., this new low phosphorus corrosion and scale inhibitor for cooling water has shown good corrosion and scale control in bench top, laboratory pilot cooling tower and field trials. This paper will review the laboratory and field work involved in developing this product. corrosion inhibitor scale inhibitor...

... of mixed scale (Fe_xCa_yCO₃) has been observed^{[ 6 ]}. In the literature, little attention has been afforded towards explaining the interaction of both simultaneously. Calcium carbonate iron carbonate combined inhibitor scale inhibitor corrosion inhibitor...

.... Therefore, an effective environmentally acceptable scale inhibitor was required to mitigate scale subsea. In addition, the scale inhibitor was required to conform to standards normally associated with products used in deepwater fields. These standards specify that a subsea product should possess key...

...silica scale scale inhibitor prediction software modeling geothermal (2) M 2 + + Si ( OH ) 4 + H 2 O ↔ M ( OH ) 3 • SiO 2 + 2 H + + 0.5 H 2 O (3) OFeOH • H 2 O + Si ( OH ) 4 + H 2 O ↔ Fe ( OH ) 3 • SiO...

...Abstract We have used in-situ synchrotron x-ray diffraction to experimentally investigate the effect of two common scale inhibitors amino trimethylene phosphonic acid (ATMPA) and polyethyleneimine (PEI) on the corrosion rate and protective scale formation process during CO₂ corrosion...

... is assessed with all materials the chemical will contact at 70°C (158°F) for 14 days. Compatibility with Umbilical Flushing Solvent Abstract In this paper, several scale inhibitors and combination scale inhibitor/corrosion inhibitors were developed to meet the requirement for deepwater applications...

... polymers in existence claim to be scale inhibitors but do not perform well over the wide ranging conditions where the existing non-biodegradable alternatives work. Abstract Global awareness of the impact of chemicals on the environment has been growing over a number of years. This has led to the demand...

... to ensure adoption of these, or similar policies, on a global basis. The need for low toxicity, biodegradable and hydrothermally stable scale inhibitors is increasing and greener chemistries are being sought to meet these challenges. This paper describes a barium sulphate and calcium carbonate scale...

... the amount of calcium retained in solution the greater the ability of the product to prevent calcium oxalate scale formation. The results are expressed as percentage inhibition and is determined from the following equation: Calcium oxalate scale inhibitor jar test water chemistry maleic acid polymer...