ASTM G170-06(2012)
Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory

Standard No.

ASTM G170-06(2012)

Release Date

2006

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM G170-06(2020)e1

Latest

ASTM G170-06(2020)e1

Scope

5. Significance and UseTop Bottom

5.1 Corrosion inhibitors continue to play a key role in controlling internal corrosion associated with oil and gas production and transportation. This results primarily from the industry's extensive use of carbon and low alloy steels, which, for many applications, are economic materials of construction that generally exhibit poor corrosion resistance. As a consequence, there is a strong reliance on inhibitor deployment for achieving cost-effective corrosion control, especially for treating long flowlines and main export pipelines (1).⁶

5.2 For multiphase flow, the aqueous-oil-gas interphases can take any of an infinite number of possible forms. These forms are delineated into certain classes of interfacial distribution called flow regimes. The flow regimes depend on the inclination of the pipe (that is, vertical or horizontal), flow rate (based on production rate), and flow direction (that is, upward or downward). The common flow regimes in vertical upward flow, vertical downward flow, and horizontal flow are presented in Figs. 1-3 respectively (2, 3).

Note 1?????_G and ??_L are gas and liquid densities and U_L and U_G are superficial velocities or the volume of flow rates of the liquid and gas per unit cross-sectional area of the channel (2).

FIG. 1 Flow Regimes for Vertical Upward Multiphase Flow

FIG. 2 Flow Regimes for Vertical Downward Flow (2)

Note 1???Boundary conditions given by two studies are presented.(2)

FIG. 3 Flow Regimes for Horizontal Flow

ASTM G170-06(2012) Referenced Document

• ASTM D1141 Standard Practice for the Preparation of Substitute Ocean Water
• ASTM D4410 Terminology for Fluvial Sediment
• ASTM G1 Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens
• ASTM G102 Standard Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements
• ASTM G106 Standard Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements
• ASTM G111 Standard Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both
• ASTM G15 Standard Terminology Relating to Corrosion and Corrosion Testing
• ASTM G16 Standard Guide for Applying Statistics to Analysis of Corrosion Data
• ASTM G3 Standard Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing
• ASTM G31 Standard Practice for Laboratory Immersion Corrosion Testing of Metals
• ASTM G46 Standard Guide for Examination and Evaluation of Pitting Corrosion
• ASTM G5 Standard Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements
• ASTM G59 Standard Test Method for Conducting Potentiodynamic Polarization Resistance Measurements
• ASTM G96 Standard Guide for Online Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)
• ISO 6614 Petroleum products — Determination of water separability of petroleum oils and synthetic fluids — Amendment 1
• ISO 696 Surface active agents; Measurement of foaming power; Modified Ross-Miles method

ASTM G170-06(2012) history

• 2020 ASTM G170-06(2020)e1 Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory
• 2006 ASTM G170-06(2012) Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory
• 2006 ASTM G170-06 Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory
• 2001 ASTM G170-01a Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory
• 2001 ASTM G170-01 Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory