Appendix 6: Useful Conversion Units and Constants

Depth

1m = 3.281ft

VOLUME

1 barrel = 0.15899 cubic meters = 5.614 cubic feet = 42 US gallons

1US gallon = 0.1337cuft

1psi = 0.06895 bar = 0.068065atm = 6895N/m ² (Pascals)

1psi/ft = 2.3095g/cc = 22.6kPa/m

1g/cc = 8.35lb/gal

Conversion from C to F: C = ( F ? 32)*5/9

C = K + 273.16

Rankine = 1.8* K = F + 460

1 darcy = 10 ^? ¹² m ²

Table 6.1
Lithology	GR (API)	Rho _b (g/cc)	CNL(NPU)	AC ( ?s/ft)	Resistivity (ohms)	Pe	?e g/cc	U (barn/cc)
Sandstone matrix	Low	2.65	?5 to ?3	51 56	High	1.8	2.65	4.79
Limestone matrix	Low	2.71	0	44 48	High	5.1	2.71	13.77
Chlorite	High	2.79	30 40	50 150	Low	6.3	2.79	17.58
Illite	High	2.52	30 40	50 150	Low	1 5	2.52	8.69
Kaolinite	High	2.41	30 40	50 150	Low	1 5	2.41	4.41
Montmorillonite	High	2.12	30 40	50 150	Low	1 5	2.12	4.32
Dolomite	Low	2.88	2 6	39 44	High	3.1 3.2	2.86	9.00
Anhydrite	Low	2.98	0	45 55	High	5 5.1	2.96	14.95
Salt	Low	2.03	100	180 190	High	4.65
Brine	0	1 1.1	100	189	0 ?	0.36	1.185	0.96
Oil	0	0.60 1.0	70 100	210 240	Very high	0.12 0.13	0.95 0.97	0.11 0.12
Gas	0	0.1 0.5	10 50	500 1500	Very high	Low	0.1 0.5	Low

1 centipoise (cp) = 10 ^? ³ Pa.s

To convert ppm of [Cl ^?] to [NaCl], you must multiply by:

molecular weight of NaCl molecular weight of Cl

Other useful...

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