A Methodology for Assessing the Favourability of Geopressured-Geothermal Systems in Sedimentary Basin Plays: A Case Study in Abruzzo (Italy)

Table 4

Well gas chemical analyses, in relation to the CH₄ and CO₂ percentage. The ID refers to the location in Figure 8.

ID	X WGS84 UTM33N	Y WGS84 UTM33N	Name	MD (m)	Test	Gas analysis		Lithology	Age	Geological unit
						CH4 (%)	C02 (%)
a	445825	4653324	Bomba 1	1222	DST	68,91	0,73	Wackestone and packstone	Miocene	Carbonate basement
b	445031	4652621	Bomba 2	1378	DST	69,14	0,7	Wackestone and packstone	Miocene	Carbonate basement
c	410927	4685976	Bonanno 1	1680	DST	7,5	36	Limestone	Miocene	Carbonate basement
d	464912	4656839	Gissi 2	1021	DST	98,37	0,32	Packstone and marls	Miocene (allochthonous)	Basin deposits
e	451540	4676478	Lanciano 2	2721	DST	31,84	13	Wackestone and packstone	Cretaceous	Carbonate basement
f	409409	4695990	Montebello di Bertona 1	1248	DST	99,19	0,04	Intercalated shale and sandstone	Pliocene	Basin deposits
f	409409	4695990	Montebello di Bertona 1	2925	DST	16,03	53,3	Wackestone and packstone	Cretaceous	Carbonate basement
g	449486	4661657	Perano 1	979	DST	97,4	0,06	Shale	Pliocene (uncertain)	Basin deposits
h	457847	4673292	S. Maria 2	2194	DST	26,67	1,83	Limestone	Cretaceous	Carbonate basement
i	461034	4669078	Villalfonsina 3	1436	DST	99,33	n.a	Sandy shale	Pliocene	Basin deposits
L	458910	4666716	Paglieta 3	700	DST	98,5	n.a.	Limestone and marls	Miocene (allochthonous)	Basin deposits