Geothermal resource assessment of remote sedimentary basins with sparse data: lessons learned from Anticosti Island, Canada

Geothermal Energy

Science – Society – Technology

Table 7 BHT data corrections and input parameters

Well #	T₀ °C	Depth m	BHT₀ °C	∇₀ °C km⁻¹	BHT₁ °C	∇₁ °C km⁻¹	∇₂ °C km⁻¹	Q_o min mW m⁻²	Q_o max mW m⁻²
D012	7.1	2762	47.0	14.4	57.3	18.2	18.9	29	56
D013	7.1	2095	42.0	16.7	54.6	22.7	24.0	32	71
D015	6.9	1363	32.0	18.4	41.7	25.5	28.3	35	84
D016	7.0	1367	32.0	18.3	42.6	26.1	28.8	34	84
D020	7.2	1111	32.0	22.3	40.7	30.1	33.3	36	80
DZ005	7.0	1274	29.8	17.9	32.0	19.6	22.5	33	62
DZ006	7.2	1557	38.4	20.0	41.3	21.9	24.2	37	68
DZ009	7.2	1540	30.6	15.2	34.7	17.9	20.2	32	64
DZ011	7.2	1351	30.0	16.9	34.0	19.9	22.6	31	65
DZ012	7.1	1726	40.0	19.1	43.4	21.0	23.0	35	64
DZ015	7.1	1683	38.0	18.4	40.7	19.9	22.0	34	61
DZ017	7.1	1468	32.0	17.0	37.8	20.9	23.4	32	65
DZ018	7.1	1809	39.2	17.7	42.1	19.4	21.2	33	60
DZ019	7.2	1675	45.4	22.8	55.9	29.1	31.2	42	86
DZ020	7.2	1765	39.4	18.2	43.9	20.8	22.7	34	63
Mean	7.1	1636	36.5	18.2	42.8	22.2	24.4	33	69
σ	0.1	384	5.5	2.2	7.4	3.7	4.0	3	9

∇: refers to the temperature gradient; 0 refers to the uncorrected value; 1 to the correction for the drilling effect (true temperature at well depth) only; and 2 to the corrections for both drilling and paleoclimatic effects (theoretical temperature if the surface temperature had stayed constant through time). Q_o min, and Q_o max are the surface heat flux calculated for the optimistic and pessimistic scenarios. σ is for standard deviation