AMPP Store - Products tagged with 'optimization'

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51316-7303- Optimization cathodic protection design for offshore platform: Solution for the contradiction of big initial and small mean current density by wing section sacrificial anode

Product Number: 51316-7303-SG

ISBN: 7303 2016 CP

Author: Min DU

Publication Date: 2016

$20.00

There is big initial and small mean current density for offshore platforms. Sometimes the former is twice of the latter. DNV-RP-B401 suggests minimizing anode size and density. NACE-RP-0176 recommends utilizing more anodes. This paper introduces a new method by wing section sacrificial anode with large surface area in the initial period.

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Assessing Coating Breakdown Factors of Silicone Rubber Thermal Insulation for Enhanced Cathodic Protection in Subsea Equipment Operations

Product Number: 51324-20350-SG

Author: Herman E Amaya; Behrang Fahimi; John Bogard

Publication Date: 2024

$40.00

This study seeks to redefine coating breakdown factors for thermal insulation coatings, whose unique electrical insulation properties have been previously overlooked in DNV RP B401, resulting in potential miscalculations in anode requirements for cathodic protection systems.1 By comparing the insulation's performance with standards like DNV RP B401 and ISO 15589-2, and through testing and analysis, this study presents refined breakdown factors and insights into optimized anode placement in subsea structures like trees and manifolds.

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Chelating Agents for Iron Sulfide Scale Removal at 300°F (149°C)

Product Number: 51320-14859-SG

Author: Raja Ramanathan , Hisham A. Nasr-El-Din

Publication Date: 2020

$20.00

Iron sulfide scales create well deliverability and integrity problems such as reduced production rates and damage to well tubulars. Chelating agents have scarcely been studied for iron-sulfide dissolution. This paper evaluates EDTA, DTPA, and HEDTA for its iron sulfide (FeS) dissolution capacity and kinetics at 300°F (149°C).

A comparative study of the chelating agents with a low pH (3-5), moderate pH (5-9), and high pH (9-14) determined the optimum pH for the scale treatment. These tests were conducted in glass bottles and a high-temperature autoclave apparatus under anoxic conditions. Results show that the iron-sulfide dissolution increases tremendously at 300°F (149°C) when using chelating agents with a pH>5. At 300°F (149°C), the bond strength is reduced, allowing the chelating agents to remove the metal ion from the solid surface. The ranking of the chelating agents in terms of iron-sulfide scale dissolution capacity and effectiveness was DTPA>EDTA>HEDTA at all pH conditions. The role of chelating agents in iron sulfide dissolution at 300°F (149°C) has not been thoroughly investigated. There is no study that reports the optimum treatment time at that temperature. This paper investigates chelating agents and provides the optimum dissolver composition and treatment time for field operations at high temperature conditions.

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Corrosion Inhibitor Surfactant Optimization: Part 1 - Inhibitor Efficiency Approach

Product Number: 51322-18043-SG

Author: Richard C. Woollam, Yasmin Hayatgheib, Joshua Owen, Richard Barker

Publication Date: 2022

$20.00

Corrosion inhibitors provide a critical barrier to internal corrosion, presenting the most cost-effective form of mitigation and enabling operators to use carbon steel where it would otherwise be impractical. The correct selection and validation of inhibitors is essential to ensure successful field deployment, providing safe and reliable operation. However, the selection and optimization of a corrosion inhibitor for a particular field application is not trivial.

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Corrosion Inhibitor Surfactant Optimization: Part 2 – Adsorption Kinetics Approach

Product Number: 51322-18045-SG

Author: Richard C. Woollam, Joshua Owen, Yasmin Hayatgheib, Richard Barker

Publication Date: 2022

$20.00

In the first paper, a mixture design matrix of a homologous series of alkyldimethylbenzylammonium chlorides (BAC) was used to assess the performance and facilitate optimization of a mixed surfactant corrosion inhibitor system based on surface coverage and steady state inhibited corrosion rate.¹ In this second paper, the approach is extended to include adsorption kinetic analysis, as demonstrated in Woollam and Betancourt for a first-order Langmuir kinetic model.²

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Corrosion Inhibitors Use: Case Study For Guinea Gulf Assets Application

Product Number: 51322-17663-SG

Author: Alvaro Mpaka Sousa, Laurent Dehays, Francisco Mateus Garcia, Mioara Stroe, Raquel Eduarda Araujo

Publication Date: 2022

$20.00

Carbon steel (CS) material is widely used for the equipment in oil and gas production industry due to its mechanical properties associated with a relatively low cost, compared to other materials. Depending on the corrosiveness of the fluid that is vehiculated, the use of carbon steel is generally associated with the injection of a corrosion inhibitor (CI) in order to mitigate internal corrosion. Corrosion inhibitors are generally used in continuous injection at an injection rate that is depending on the corrosiveness of the fluid. Based on the operational feedback, the internal standards are recommending for multiphase pipelines CI injection rates in the range of 50 - 70 ppm for temperature below 80°C of and of 150 to 200ppm for temperatures above 100°C. These injection dosages are typical values that are considered in the laboratory tests for the qualification of the CI and they are adjusted on-site based on the monitoring results.

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Future of Digital Corrosion Management (Case Study)

Product Number: MECC23-20307-SG

Author: Shadi Hamati; Mahmoud Hanafy

Publication Date: 2023

$20.00

The process of digitalization is widely regarded as one of the last remaining cost-efficiency levers left following a sustained period of pressure to reduce operating costs and enhance efficiency. A new digital platform for seamlessly integrating Corrosion and Chemical Management (CCM) program with online real time monitoring is discussed in this article, refer Figure 1. The key objective is to establish full integration of real-time corrosion data with various parameters related to corrosion control.

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Improved Unit Economics, Crude Blending and Throughput Management Using a Novel High Temperature Corrosion Prediction Framework

Product Number: MECC23-20054-SG

Author: Sridhar Srinivasan, Gerrit Buchheim

Publication Date: 2023

$20.00

Sulfur and acidic impurities in crude oils pose serious hot oil corrosion problems in crude distillation units (CDU) and associated vacuum distillation units (VDU), especially with the increase in processing of lowquality, opportunity crudes. In the range of 200-400˚C, reactive sulfur compounds cause sulfidation corrosion of ferritic carbon and chrome steels in CDU, VDU, and front ends of downstream units operating at hot oil temperatures. Over the same temperature range, naturally occurring carboxylic acids in crudes can be so aggressive that higher alloy, austenitic stainless steels containing >2.5% Mo are required for processing high acid oils.

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Practical Application Of AI To Transform Pipeline Integrity Management

Product Number: 51323-19039-SG

Author: Pankaj Tandon

Publication Date: 2023

$20.00

Management and operating teams, across all industries, but especially inside asset management organizations, must increasingly rely on data-driven assessment and analytics for decision making. Clearly, inefficiency and ineffectiveness associated with manual or poorly optimized business processes and fragmented business management Infrastructures is a barrier to formulating the safest, most efficient and cost effective asset management and operational decisions. According to Deloitte’s digital maturity analysis, the midstream industry and specially the pipeline sector is in its lowest stages of digital adoption (first 20-30% progress).

Products tagged with 'optimization'

Association for Materials Protection and Performance