Download Back-Pressure Data on Natural-Gas Wells and Their by Edwin Lee Rawlins PDF

By Edwin Lee Rawlins

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Additional info for Back-Pressure Data on Natural-Gas Wells and Their Application to Production Practices. United States. Bureau of Mines. Monograph 7

Sample text

I 2 gage after the open flow of the well. Blowing, therefore, caused a change in the column of liquid in the well bore equivalent to a pressure difference of 61 pounds per square inch. Curve C is based on back-pressure data obtained before the open flow of the well, without considering the effect of liquid in the well bore on pressures, and curve D is based on back-pressure data after the open flow of the well. The data from which curve C was plotted then were corrected for the pressure of 61 pounds per square inch exerted by the column of liquid, as shown in table 10; and these corrected data were used to determine curve E, which coincides practically with 41 APPLICATION TO PRODUCTION PROBLEMS curve D.

Ft. per 24 hours 661 756 748 776 1,467 885 1,023 672 814 .. .. .. .. .. I .. Plottina data Before open flow of well Reading no. 1. , 2 ...... 3 ...... 4 ...... 5 ...... 1 ) After open flow of well lb. Jlcr sq. Ill. absolute lb. Jler sq. 1Il. absolute 1'[" - 1',", thousands Q, M cu. ft. per 24 hours 1'[, lb. per sq. in. 1 708 2,170 1,980 1,442 1,027 888 PI, .. .. P" .. .. lb. per sq. 1Il. absolute 1'[2 - p,2, thousands Q, M cu. ft. , Ps, .. i Curves A and B, fig. 8. Pitot tube. " The data and calculations for the back-pressure tests on one well, illustrated by curves A and B (fig.

Gage Rate of flow, M cu. ft. per 24 hours 661 756 748 776 1,467 885 1,023 672 814 .. .. .. .. .. I .. Plottina data Before open flow of well Reading no. 1. , 2 ...... 3 ...... 4 ...... 5 ...... 1 ) After open flow of well lb. Jlcr sq. Ill. absolute lb. Jler sq. 1Il. absolute 1'[" - 1',", thousands Q, M cu. ft. per 24 hours 1'[, lb. per sq. in. 1 708 2,170 1,980 1,442 1,027 888 PI, .. .. P" .. .. lb. per sq. 1Il. absolute 1'[2 - p,2, thousands Q, M cu. ft. , Ps, .. i Curves A and B, fig.

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