Sodium chloride (halite) mineral scale threat assessment and scale inhibitor evaluation by two common jar test based methods

2021 ◽  
Vol 43 ◽  
pp. 102241
Author(s):  
Gedeng Ruan ◽  
Yuan Liu ◽  
Amy T. Kan ◽  
Mason B. Tomson ◽  
Ping Zhang
Keyword(s):  
Sodium Chloride ◽  
Threat Assessment ◽  
Scale Inhibitor ◽  
Jar Test ◽  
Mineral Scale

An assay method to determine mineral scale inhibitor efficiency in produced water

2016 ◽  
Vol 143 ◽  
pp. 103-112 ◽  
Author(s):  
Ya Liu ◽  
Amy Kan ◽  
Zhang Zhang ◽  
Chao Yan ◽  
Fei Yan ◽  
...  
Keyword(s):  
Produced Water ◽  
Assay Method ◽  
Scale Inhibitor ◽  
Inhibitor Efficiency ◽  
Mineral Scale

Synthesis and laboratory testing of a novel calcium-phosphonate reverse micelle nanofluid for oilfield mineral scale control

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39883-39895 ◽  
Author(s):  
Ping Zhang ◽  
Dong Shen ◽  
Amy T. Kan ◽  
Mason B. Tomson
Keyword(s):  
Reverse Micelle ◽  
Laboratory Testing ◽  
Scale Inhibitor ◽  
Mineral Scale ◽  
Water Cut ◽  
Scale Control

Developed calcium-phosphonate scale inhibitor reverse micelle nanomaterial for oilfield mineral scale control in low water cut or water sensitive wells.

Development of a Mineral Scale Inhibitor

CORROSION ◽  
1961 ◽  
Vol 17 (5) ◽  
pp. 232t-236t ◽  
Author(s):  
L. W. JONES
Keyword(s):  
Laboratory Testing ◽  
Calcium Sulfate ◽  
Testing Device ◽  
Scale Inhibitor ◽  
Surface Active Agents ◽  
Calcium Sulfate Scale ◽  
Surface Active ◽  
Mineral Scale ◽  
Calcium Carbonate Scale ◽  
Methods Of Control

Abstract The expense attributable to scaling in oil producing operations totals many millions of dollars annually. Causes of precipitation and deposition are fairly well understood but better methods of control are needed. In order to evaluate chemical scale inhibitor components, a laboratory testing device was designed. Performance of sequestrants, surface active agents, colloids, and mixed compounds in the laboratory tester are discussed. Polyphosphates and sodium carboxymethyl cellulose proved effective for calcium carbonate scale and calcium sulfate scale, respectively. Results of tests made over a period of several years led to the development of an inhibitor composition that is capable of inhibiting both carbonate and sulfate scales. The inhibitor is now in field use. 5.8.2, 3.2.3, 8.4.3

scholarly journals Evaluating the Effectiveness of Red Onion Skin Extract Derivatives as Oilfield Scale Inhibitors

2021 ◽  
pp. 36-45
Author(s):  
Dominica Una ◽  
Dulu Appah ◽  
Amieibibama Joseph ◽  
Onyewuchi Akaranta
Keyword(s):  
Calcium Carbonate ◽  
Test Procedure ◽  
Calcium Sulphate ◽  
Barium Sulphate ◽  
Effect Of Temperature ◽  
Laboratory Evaluation ◽  
Skin Extract ◽  
Scale Inhibitor ◽  
Jar Test ◽  
Study Laboratory

With growing awareness of the environmental impact of some conventional production chemicals and concerns about the depletion of non-renewable natural resources, increased efforts are being made to use renewable and non-toxic materials in the oilfield. In this study, a potential green scale inhibitor was developed from the skin of red onions and evaluated for calcium sulphate, calcium carbonate and barium scale inhibition. Based on the different extraction processes utilized, two products were obtained and characterized using FTIR and SEM and evaluated using a static jar test procedure. The FTIR results confirmed the bands that make up the major constituents (quercetin) and other important compounds, which supports the present study. Laboratory evaluation show that ROSE can efficiently inhibit calcium sulphate scale and barium sulphate scales with a good inhibition rate of greater than 75% at an optimum dosage. Effect of temperature and dosage on inhibition performance revealed that ROSE is stable at higher temperatures and can effectively inhibit calcium and barium sulphate scales at nearly the same rate without degradation but requires additional dosage to produce same result for calcium carbonate scale. Also, the effect of time reveals that scale inhibitor performs a continuous CaSO4 and CaCO3 inhibition. Not only does ROSE perform excellently in the laboratory condition as a green scale inhibitor, but it also show a relatively close performance rate when compared to an existing commercial inhibitor which indicate that ROSE has a high potential for use in the oil industry.

Functional scale inhibitor nanoparticle capsule delivery vehicles for oilfield mineral scale control

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43016-43027 ◽  
Author(s):  
Ping Zhang ◽  
Gedeng Ruan ◽  
Amy T. Kan ◽  
Mason B. Tomson
Keyword(s):  
Building Blocks ◽  
Scale Inhibitor ◽  
Functional Scale ◽  
Polymer Nanoparticle ◽  
Polymer Aggregates ◽  
Delivery Vehicles ◽  
Mineral Scale ◽  
Scale Control

This study synthesized phosphonate–polymer nanoparticle capsules using SiO2 nanoparticles as the building blocks and polymer aggregates as the template for the purpose of oilfield mineral scale control.

Phosphino-polycarboxylic acid modified inhibitor nanomaterial for oilfield scale control: transport and inhibitor return in formation media

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59195-59205 ◽  
Author(s):  
Ping Zhang ◽  
Dong Shen ◽  
Amy T. Kan ◽  
Mason B. Tomson
Keyword(s):  
Polycarboxylic Acid ◽  
Scale Inhibitor ◽  
Return Behavior ◽  
Mineral Scale ◽  
Scale Control

Evaluation of the transport and return behavior of phosphino-polycarboxylic acid modified scale inhibitor nanomaterial for oilfield mineral scale control.

Calcite Scale Mitigation in a Very Low Watercut, Low Salinity, HPHT Environment: Lessons Learned in Surveillance, Mitigation and Scale Inhibitor Performance Monitoring for an Onshore Field

2021 ◽  
Author(s):  
Jonathan J. Wylde ◽  
Alexander R. Thornton ◽  
Mark Gough ◽  
Rifky Akbar ◽  
William A. Bruckmann
Keyword(s):  
High Temperature ◽  
Calcium Carbonate ◽  
Laboratory Testing ◽  
Lessons Learned ◽  
Management Decision ◽  
Scale Inhibitor ◽  
Monitoring Programs ◽  
Mineral Scale ◽  
Water Cut ◽  
Scale Control

Abstract A prolific Southeast Asia onshore oilfield has enjoyed scale free production for many years before recently experiencing a series of unexpected and harsh calcite scaling events. Well watercuts were barely measurable, yet mineral scale deposits accumulated quickly across topside wellhead chokes and within downstream flowlines. This paper describes the scale management experience, and the specific challenges presented by this extraordinarily low well water cut, low pH, calcium carbonate scaling environment. To the knowledge of the authors, no previous literature works have been published regarding such an unusual and aggressive mineral scale control scenario. A detailed analysis of the scaling experience is provided, including plant layout, scaling locations, scale surveillance and monitoring programs, laboratory testing, product selection and implementation, and scale inhibitor efficacy surveillance and monitoring programs. The surveillance and application techniques themselves are notable, and feature important lessons learned for addressing similar very low water cut and moderate pH calcium carbonate scaling scenarios. For example, under ultra-low watercut high temperature well production conditions, it was found that a heavily diluted scale inhibitor was necessary to achieve optimum scale control, and a detailed laboratory and field implementation process is described that led to this key learning lesson. The sudden and immediate nature of the occurrence demanded a fast-track laboratory testing approach to rapidly identify a suitable scale inhibitor for the high temperature topside calcium carbonate scaling scenario. The streamlined selection program is detailed, however what could not be readily tested for via conventional laboratory testing was the effect of <1% water cut, and how the product would perform in that environment. A risk-managed field surveillance program was initiated to determine field efficiency of the identified polymeric scale inhibitor and involved field-trialing on a single well using a temporary restriction orifice plate (ROP) to modify the residence time of the injected chemical. The technique proved very successful and identifed that product dispersibility was important, and that dilution of the active scale inhibitor had a positive effect on dispersibility for optimum inhibitor action. The lessons learned were rolled out to all at-risk field producers with positive results. The ongoing success of this program continues and will be detailed in the manuscript and presentation. This paper demonstrates a unique situation of calcium carbonate scale formation and control that utilized a previously unreported and analytical surveillance approach. The cumulative performance derived by improving not only chemical selection, but the way the wells were managed via surveillance and chemical management decision making processes is compelling and of value to other production chemists working in the scaling arena.

scholarly journals Carbon Nanotubes: A New Methodology for Enhanced Squeeze Lifetime CNTs

2014 ◽  
Author(s):  
N.. Ghorbani ◽  
M. C. Wilson ◽  
N.. Kapur ◽  
N.. Fleming ◽  
A.. Neville
Keyword(s):  
Carbon Nanotubes ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Nano Particles ◽  
Extensive Literature ◽  
Scale Inhibitor ◽  
Gas Industry ◽  
Apparent Lack ◽  
Potential Benefits ◽  
Mineral Scale

Abstract A new potential application of nanotechnology for mineral scale prevention in the oil and gas industry is presented. In current squeeze treatments, in which scale inhibitors are squeezed into wells to adsorb or precipitate onto rock surfaces for later release, a large proportion of the injected inhibitor does not adsorb and is therefore returned very quickly from the reservoir upon well re-start. Here it is demonstrated that nano-particles have the potential to enhance squeeze lifetime by greatly increasing the adsorption of inhibitors within the formation. An extensive literature review is presented, exploring the potential for using nano-scale materials in squeeze treatments. One of the observations from scale inhibitor squeezes into sandstone reservoirs is the apparent lack of suitable surfaces available for adsorption. The main constituent of sandstones, quartz, has a very low ability to adsorb inhibitor (1 mg/l). Given this, research using nanotechnology was targeted towards enhancing the available sites for scale inhibitor adsorption within the near wellbore. Specifically, research was undertaken to examine the potential benefits of using carbon nanotubes in a process called Nanotechnology Assisted Squeeze Treatment (NAST). The process involves carbon nanotubes adsorbing and permanently modifying the near wellbore with scale inhibitors subsequently adsorbing onto the nanotubes. This process was observed to be significantly higher than a non-modified near wellbore surface, with a maximum adsorption of more than 85 and 160mg/g onto the nanotubes in solution of distilled water (DW) and CaCl2 in DW; respectively, compared to 1 mg/g directly onto the rock. Coreflood tests comparing the NAST procedure with a simplified standard coreflood show the potential for improvement of the squeeze lifetime.

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