Synergistic Properties of Phosphonate and Polymeric Scale-Inhibitor Blends for Barium Sulfate Scale Inhibition

2015 ◽  
Vol 30 (01) ◽  
pp. 16-25 ◽  
Author(s):  
Scott Stewart Shaw ◽  
Ken Sorbie
Keyword(s):  
Barium Sulfate ◽  
Scale Inhibitor ◽  
Scale Inhibition

Effect Evaluation of Inhibitor to Barium Sulfate and Strontium Sulfate

2011 ◽  
Vol 402 ◽  
pp. 41-45
Author(s):  
Chuang Qian Chen ◽  
Kan She Li ◽  
Jie Kang ◽  
Chun Xia Yu ◽  
Jing Liu
Keyword(s):  
Barium Sulfate ◽  
Comprehensive Evaluation ◽  
Production Operation ◽  
Inhibition Rate ◽  
Effect Evaluation ◽  
Scale Inhibitor ◽  
Inhibition Effect ◽  
Scale Inhibition ◽  
Strontium Sulfate ◽  
Better Than

Facing at the situation that a large amount of BaSO4/SrSO4, which seriously impacts on oil production operation scale, has been yielded during oilfield production, three kinds of scale inhibitor (TS-09, TH-60 and PBTCA) were collected from oilfield for comprehensive evaluation. The results show that the three kinds of scale inhibitor have certain scale inhibition effect to BaSO4/SrSO4, and the influence of different water quality is obvious. When TH-60 concentration was 100 mg/L, its inhibition rate to BaSO4 has reached 95%. In comparison, scale inhibition effect of TH-60 to BaSO4/SrSO4 is better than the others. TH-60 is more suitable for Huaqing oilfield than TS-09 and PBTCA, concentrations range in 100-180 mg/L especially.

Research Progress of Scale Inhibition Mechanism

2014 ◽  
Vol 955-959 ◽  
pp. 2411-2414 ◽  
Author(s):  
Li Xiu Liu ◽  
Ai Jiang He
Keyword(s):  
Metal Surface ◽  
Inorganic Salt ◽  
Simulation Technique ◽  
Research Progress ◽  
Inhibition Mechanism ◽  
Scale Inhibitor ◽  
Scale Inhibition

Scale inhibitor is a medicament which has the properties of dispersing insoluble inorganic salt in water, and preventing or obstructing sediment and scaling of insoluble inorganic salt on metal surface. Research on the mechanism of scale inhibition can promote using and developing scale inhibitors. In this paper, the traditional macroscopic mechanism of scale inhibition was firstly analyzed, and it was also emphasized to introduce the research progress of quantization simulation technique on the mechanism of scale inhibition, and it was also suggested to combine the microstructure of scale crystal with quantization simulation technique to have a further study on the mechanism of scale inhibition.

Scale inhibitors with a hyper-branched structure: preparation, characterization and scale inhibition mechanism

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92943-92952 ◽  
Author(s):  
Henghui Huang ◽  
Qi Yao ◽  
Hualin Chen ◽  
Bailing Liu
Keyword(s):  
Inhibition Efficiency ◽  
Water Bodies ◽  
Inhibition Mechanism ◽  
Industrial Water ◽  
Scale Inhibitor ◽  
Phosphorus Pollution ◽  
Scale Inhibition ◽  
New Type ◽  
Branched Structure

In order to improve the scale inhibition efficiency of existing scale inhibitors for industrial water and to reduce the phosphorus pollution of water bodies, a new type of scale inhibitor with a hyper-branched structure has been developed.

Pre-Production Deployed Scale Inhibition Treatments in Deep-Water, West Africa

2014 ◽  
Author(s):  
D.. Patterson ◽  
W.. Williams ◽  
M.. Jordan ◽  
R.. Douglas
Keyword(s):  
West Africa ◽  
Deep Water ◽  
Best Practice ◽  
Barium Sulphate ◽  
Scale Inhibitor ◽  
Monitoring Methods ◽  
Initial Water ◽  
Scale Inhibition ◽  
Production Wells ◽  
Scale Control

Abstract The injection of seawater into oil-bearing reservoirs in order to maintain reservoir pressure and improve secondary recovery is a well-established, mature operation. Moreover, the degree of risk posed by deposition of mineral scales (carbonate/sulphate) to the injection and production wells during such operations has been much studied. The current deep-water subsea developments offshore West Africa and Brazil have brought into sharp focus the need to manage scale in an effective way. In a deepwater West African field the relatively small number of high-cost, highly productive wells, coupled with a high barium sulphate scaling tendency upon breakthrough of injection seawater meant not only was effective scale management critical to achieve high hydrocarbon recovery, but even wells at low water cuts have proven to be at sufficient risk to require early squeeze application. To provide effective scale control in these wells at low water cuts, phosphonate-based inhibitors were applied as part of the acid perforation wash and overflush stages prior to frac packing operations. The deployment of this inhibitor proved effective in controlling barium sulphate scale formation during initial water production eliminating the need to scale squeeze the wells at low water cuts (<10% BS&W). To increase the volumes of scale inhibitor being deployed in the pre-production treatments and so extend the treatment lifetimes scale inhibitor was also added to the frac gel used to carry the frac sand. This paper outlines the selection methods for the inhibitor chemical for application in frac fluids in terms of rheology, retention/release, formation damage and presents the chemical returns profile from the 5 wells treated (some treatments lasting > 300 days) along with monitoring methods utilized to confirm scale control in the wells treated. Many similar fields are currently being developed in the Campos basin, Gulf of Mexico, and West Africa, and this paper is a good example of best-practice sharing from another oil basin.

Formation and Mitigation of BaSO4 Scale in Oil Fields

2015 ◽  
Vol 814 ◽  
pp. 278-285
Author(s):  
Ming Zhu ◽  
Cheng Qiang Ren ◽  
Yuan Yuan Meng ◽  
Li Liu ◽  
Yun Ping Zheng
Keyword(s):  
Inhibition Efficiency ◽  
Oil Fields ◽  
Scale Inhibitor ◽  
Conductivity Method ◽  
Environment Friendly ◽  
Scale Inhibition ◽  
Negative Role ◽  
Corrosion Inhibition Efficiency ◽  
Effects Of Temperature ◽  
Inhibition Performance

The deposition of BaSO4scale is always found in the oilfield. It is difficult to be removed. Therefore, it plays a negative role to the production. The effects of temperature and water chemistry on BaSO4scale have been investigated by using the conductivity method in this work. An environment-friendly copolymer was prepared to control the scaling of BaSO4. The copolymer was proved by static scale inhibition method, and weight-loss test that it has excellent scale inhibition performance and corrosion inhibition efficiency. Furthermore, FTIR spectra was used to prove that the scale inhibitor was polyepoxysuccinic acid (PESA).

Experimental study on scale inhibition performance of a green scale inhibitor polyaspartic acid

2008 ◽  
Vol 51 (7) ◽  
pp. 695-699 ◽  
Author(s):  
ZhenHua Quan ◽  
YongChang Chen ◽  
XiuRong Wang ◽  
Cheng Shi ◽  
YunJie Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Scale Inhibitor ◽  
Polyaspartic Acid ◽  
Scale Inhibition ◽  
Inhibition Performance

Corrosion and Scale Inhibition Properties by Phosphate-free and Nitrogen-free Scale Inhibitor in Cooling Water System

2014 ◽  
Vol 51 (3) ◽  
pp. 248-256 ◽  
Author(s):  
Huchuan Wang ◽  
Yuming Zhou ◽  
Guangqing Liu ◽  
Jingyi Huang ◽  
Qingzhao Yao ◽  
...  
Keyword(s):  
Water System ◽  
Cooling Water ◽  
Scale Inhibitor ◽  
Cooling Water System ◽  
Scale Inhibition
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