A new CSTR method for scale inhibitor evaluation

Dai, Zhaoyi; Paudyal, Samridhdi; Dai, Chong; Ko, Saebom; Zhao, Yue; Wang, Xin; Li, Wei; Lu, Yi-Tsung; Kan, Amy T.; Tomson, Mason B.

doi:10.1016/j.cej.2022.135351

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…Furthermore, mineral scaling and corrosion can impair the integrity of the operational systems, leading to severe threats to personnel safety. Scales are insoluble crystalline inorganic precipitates from the water phase where the water is oversaturated with the scaling ions due to the change in operating conditions and/or mixing of incompatible waters [9][10][11]. Scale solubility is the primary driving force for scale formation, which can affect the kinetics and thermodynamics of the scale formation [12,13].…”

Section: Introductionmentioning

confidence: 99%

Review of Phosphorus-Based Polymers for Mineral Scale and Corrosion Control in Oilfield

Liu

Zhang

2022

Polymers

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Production chemistry is an important field in the petroleum industry to study the physicochemical changes in the production system and associated impact on production fluid flow from reservoir to topsides facilities. Mineral scale deposition and metal corrosion are among the top three water-related production chemistry threats in the petroleum industry, particularly for offshore deepwater and shale operations. Mineral scale deposition is mainly driven by local supersaturation due to operational condition change and/or mixing of incompatible waters. Corrosion, in contrast, is an electrochemical oxidation–reduction process with local cathodic and anodic reactions taking place on metal surfaces. Both mineral scaling and metal corrosion can lead to severe operational risk and financial loss. The most common engineering solution for oilfield scale and corrosion control is to deploy chemical inhibitors, including scale inhibitors and corrosion inhibitors. In the past few decades, various chemical inhibitors have been prepared and applied for scaling and corrosion control. Phosphorus-based polymers are an important class of chemical inhibitors commonly adopted in oilfield operations. Due to the versatile molecular structures of these chemicals, phosphorus-based polymeric inhibitors have the advantage of a higher calcium tolerance, a higher thermal stability, and a wider pH tolerance range compared with other types of inhibitors. However, there are limited review articles to cover these polymeric chemicals for oilfield scale and corrosion control. To address this gap, this review article systematically reviews the synthesis, laboratory testing, and field applications of various phosphorus-based polymeric inhibitors in the oil and gas industry. Future research directions in terms of optimizing inhibitor design are also discussed. The objective is to keep the readers abreast of the latest development in the synthesis and application of these materials and to bridge chemistry knowledge with oilfield scale and corrosion control practice.

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