... inspection due date. A case study illustrates the implementation of the approach for the analysis of multiphase flowlines in the Gulf of Mexico. internal corrosion corrosion modeling corrosion inhibition direct assessment subsea pipeline local area inspection pipeline integrity INTRODUCTION...

...Abstract Based on Federal laws, pipeline operators in USA were required to develop a proactive Pipeline Integrity Management Plan to manage risk and protect public areas near pipelines. NACE initially published RP0502-02 for ECDA (External Corrosion Direct Assessment), and standard practices...

... and real-life case studies are presented to substantiate the presented arguments. ICPM ILI Direct Assessment Crude Oil Data Analysis and Integration Pipeline Integrity Internal Corrosion Internal Corrosion Mechanisms Validations INTRODUCTION Oil and gas pipelines may suffer internal corrosion...

...ABSTRACT The paper presents an extensive case study on the application of NACE International, Internal Corrosion Direct Assessment (ICDA) Standard Practices for 22 oil & gas production and transport pipelines owned by two pipeline operators in India. The objective of the paper is to discuss...

..., to pinpoint a lost inline inspection pig and to identify dents, cracks, buckles, slope movement, casing ends, unknown valve locations and other pipeline integrity and direct assessment applications. Ongoing development programs and lessons learnt from practical, real-life projects and validations...

...For both external corrosion direct assessment (ECDA) and internal corrosion direct assessment (ICDA), the corrosion modeling should be carried out in the indirect assessments step. In the ICDA pre-assessment step, it is typical to perform a flow modeling to determine the flow pattern, pressure...

... Examination process, wall loss due to internal corrosion was observed at the locations where solids and water tend to accumulate. Abstract The study presents the internal corrosion direct assessment (ICDA) of a 48” × 18.7 km liquid petroleum pipeline carrying crude oil from a subsea pipeline end manifold...

... Direct Assessment (DA) at an unknown casing location would be challenging. This paper will show how an indirect inspection technology can be used to find buried casings without any direct contact to the pipeline or ground disturbance. In addition, the paper will share how to find these casings based...

...NTSB Safety Study Direct Assessment DA In-Line Inspection ILI IIT INTRODUCTION Oil and gas pipelines have been around for well over a century, and some of the earliest constructed are still in service today. Although early pipelines were made of wood, and in the past few decades plastics...

... Pipeline hubs the production of several pads or platforms to the Central Production Facilities, CPF, at the Block 15. Multiphase Flow Internal Corrosion Direct Assessment (MP-ICDA) is a structured process that combines Pre Assessment, Indirect Inspection (IDi), Detailed Examination (DEx), and Post...

...In Line Inspection (ILI) Direct Assessment Guided Wave Testing (GWT) Direct Examination Indication Anomaly Verification/Prove Up Tools Screening Tools 3D Structured Light Coordinate Measurement Machine (CMM) Factors of Safety (FOS) Traceable Verifiable and Complete (TVC) INTRODUCTION...

... (i.e. internal corrosion predictive modeling (ICPM)), detailed examination and post-assessment results of a multiphase-flow internal corrosion direct assessment (MP-ICDA). This assessment was performed using an in-house internal corrosion predictive model on a header pipeline in the Tambaredjo North...

... pipelines. It is important to compare and confirm IC threat assessment results with in-the-ditch data and inspections during direct assessment and other projects. Pipeline typically operates in a pressure range of 600 to 800 psia (4 and 6 MPa). The dew points corresponding to these operating pressures...

... direct assessment (DA) inspection and cathodic protection survey techniques and provides a new data set that has not been available prior to development of the tool. The technique helps operators identify areas where the cathodic protection system is not functioning properly and where active corrosion...

... corrosion on the exterior surface of the carrier pipe in a casing. Case studies of the assessment of filled casings using Inline Inspection (ILI) and Direct Assessment (DA) will be presented to evaluate the effectiveness of filling casings to control corrosion. Casing Fill Direct Assessment carrier pipe...

... protection and pipeline coating. The environmental conditions evaluated consider the chemical properties of the soil, its resistivity and its pH profile Chemical analysis of soil and water samples Root Cause Analysis Direct Assessment Cathodic protection shielding Abstract In November 2011, a Root Cause...

...Data Collection Abstract Direct Assessment (DA) is an accepted methodology to evaluate the impact of external, internal, and stress corrosion cracking on underground pipelines’ integrity. However, for aboveground piping of a facility or for aboveground sections of an underground pipeline, other...

... third party damage which remains the most significant threat to pipeline integrity. corrosion rate casings cased pipeline segments annular space direct assessment high consequence areas natural gas transmission pipeline external corrosion direct assessment ECDA electrical resistance (ER...

...INTERNAL CORROSION DIRECT ASSESSMENT The four steps of the ICDA methodology used in this project are described below with respect to the pipe of concern. Pre-assessment For dry gas pipelines, gas quality control requires that the water content not exceed a certain tariff limit such as 7 lb/mmscf...

... the capability of this technique is the condition of the pipeline surface. Several segments along the maritime terminal the pipelines were highly wrinkled, which reduced the quality of the signal passing through that portion of the piping during the evaluation. Abstract As a part of the Direct Assessment goals...