Fluid Inclusion Evidence for Oil Charge and Cracking in the Cambrian Longwangmiao Dolomite Reservoirs of the Central Sichuan Basin, China

Table 1

List of core samples from the Longwangmiao Formation with associated description of observed pore fill and pore hosting alteration mineralogy.

Order	Well	Identifier	Depth (m)	Lithology	Observation
1	MX20	MX20-1	4597.29-4598.73	Dolomites	Dissolution pores in dolomite, quartz veins and dolomite in vein form
2		MX20-2	4597.29-4598.73	Dolomites	Dissolution pores in dolomite
3		MX20-3	4601.47-4603.60	Granular dolomites	Crystalline dolomite along the crack surfaces
4		MX20-4	4605.59-4605.84	Granular dolomites	Solid bitumen and dolomite in dissolution pores
5		MX20-5	4605.34-4605.59	Granular dolomites	Solid bitumen and dolomite in dissolution pores
6		MX20-6	4607.25	Dolomites	Solid bitumen and dolomite in dissolution pores, dolomite in veins
7		MX20-7	4608.27-4609.07	Dolomites	Pyrites and solid bitumen are observed
8		MX20-8	4611.03	Dolomites	Dissolution pores in quartz
9		MX20-9	4612.96-4613.15	Dolomites	Dissolution pores in dolomite, a little solid bitumen and quartz
10		MX20-10	4614.83-4614.95	Dolomites	Dissolution pores in dolomite, solid bitumen, and quartz.
11		MX20-11	4618.64-4618.86	Dolomites	Dissolution pores in dolomite and quartz
12		MX20-12	4629.59-4629.79	Dolomites	Chunk of dolomites
13		MX20-13	4632.73-4632.95	Dolomites	Dissolution pores with multiperiod dolomite
14	MX22	MX22-1	4941.83	Dolomites	Dissolution pores with solid bitumen and quartz
15		MX22-2	4943.72-4943.88	Dolomites	Dissolution pores with solid bitumen and quartz
16	MX26	MX26-1	4924.28	Dolomites	Dissolution pores in quartz