ASTM G170-06(2012)
實驗室中對油田和精煉廠腐蝕抑制劑評測的評價指南

Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory

被代替

標準號

ASTM G170-06(2012)

發布

2006年

發布單位

美國材料與試驗協會

替代標準

ASTM G170-06(2020)e1

當前最新

ASTM G170-06(2020)e1

 

 

引用標準

ASTM D1141 ASTM D4410 ASTM G1 ASTM G102 ASTM G106 ASTM G111 ASTM G15 ASTM G16 ASTM G3 ASTM G31 ASTM G46 ASTM G5 ASTM G59 ASTM G96 ISO 6614 ISO 696

適用范圍

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

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