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Products tagged with 'scale dissolver'

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Picture for New Developments in Iron Sulfide Scale Dissolvers
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51316-7264-New Developments in Iron Sulfide Scale Dissolvers

Product Number: 51316-7264-SG
ISBN: 7264 2016 CP
Author: Tao Chen
Publication Date: 2016
$20.00

This paper presents the latest laboratory results on iron sulfide dissolver evaluation. The recently developed dissolvers were studied for their dissolving powers using iron sulfide scale solids and the corrosion rate to mild steel at elevated temperature. Based on these results, the technical gaps and future developments for iron sulfide dissolvers are discussed.
Picture for SEARCHING FOR IRON SULFIDE SCALE DISSOLVER FOR DOWNHOLE APPLICATIONS
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51318-10545-SEARCHING FOR IRON SULFIDE SCALE DISSOLVER FOR DOWNHOLE APPLICATIONS

Product Number: 51318-10545-SG
Author: Qiwei Wang, Tao Chen, Frank Chang, Waleed Al-Nasser
Publication Date: 2018
$20.00

Latest developments in iron sulfide dissolver studies. Lab tests performed to evaluate some new products for thermal stability, corrosivity, compatibility with formation water, and dissolving authigenic mineral and field deposits.
Picture for Inhibited acidic scale dissolver that is compatible with 3% and 13% Cr alloys at high temperatures
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51318-10578-Inhibited acidic scale dissolver that is compatible with 3% and 13% Cr alloys at high temperatures

Product Number: 51318-10578-SG
Author: Avaldsnes, O.G. / Stipaničev, M. / Birketveit, Ø.
Publication Date: 2018
$20.00

Development of a high efficiency acid for scale removal that is compatible with 3% and 13% Cr alloys at elevated temperatures, with low general corrosion rates and no pitting.
Picture for Qualification of Scale Dissolver Acid Systems for 3CR Alloyed Steel and 13CR Stainless Steels Well Materials
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51318-10969-Qualification of Scale Dissolver Acid Systems for 3CR Alloyed Steel and 13CR Stainless Steels Well Materials

Product Number: 51318-10969-SG
Author: Lucrezia Scoppio / Emilia Imbimbo / Sten Axelsen / Perry Nice / Giuseppe Mortali
Publication Date: 2018
$20.00

A corrosion testing program was performed aimed at evaluating scale dissolver packages to determine which package(s) were least corrosive and acceptable for use in wells constructed with 3Cr80 alloyed steel and L80 13 Cr (API 5CT grade) (1) tubulars.
Picture for Downhole Scale Removal in High Temperature Sour Gas Wells
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Downhole Scale Removal in High Temperature Sour Gas Wells

Product Number: 51324-20834-SG
Author: Mauricio A. Espinosa; Tao Chen; Qiwei Wang; Jairo Leal
Publication Date: 2024
$40.00
Extensive work has been carried out by lab scientists and production engineers that recognized the multi-compositional scale deposition challenges in one high-temperature gas field. Removing such scales has been a challenging and complex process. In addition to the high temperatures and high H2S, other factors, such as downhole completion, near wellbore pressure, formation permeability, and high deposit amounts, must also be considered in developing and selecting the descaling strategies. Coiled tubing (CT) mechanical descaling was developed and deployed in the past by taking advantage of state-of-the-art technologies such as high RPM milling, downhole sensors, foamed cleanup tools, and sophisticated surface collecting and well testing equipment. However, CT descaling operations have become limited in recent years due to reduced downhole pressures in some wells as the field matures. This paper describes the results of the field implementation of the newly patented scale dissolver technology for dealing with mixed scales. Lab studies demonstrated that this chemical product has the potential to be used for both tubing/liner/completion and formation stimulation benefits as well. Field results showed significantly increased gas productivity in conjunction with improved well operational factors as well as retrieved well accessibility. A discussion on the different lab evaluation protocols is also presented, and a final update on current scale clean-up strategies and future proposals is included. The results presented in this work represent recent advancements in iron sulfide scale management. The new scale dissolver technology is under commercialization and can be applied to various systems, such as oil and gas producers, water injectors, and surface handling facilities.
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