Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data

Table 3

Main parameters fitted by different fracturing types.

Well name	Fracturing type	Fitting stage	Crack half-length (m)	Internal area		External area
				K (mD)	S (m^2)	K (mD)	S (m^2)
C1	CHF	First stage	103	10	/	/	/
		Second stage	62	6	/	/	/
		Third stage	45	0.8	/	/	/
	LHF	First stage	110	15	6384.3	5	12073.1
		Second stage	102	13	5747.6	3	8741.8
		Third stage	82	8	5706.8	2.5	7742.5
		Fourth stage	61	5	3215.6	1.5	4318.9
		Fifth stage	53	2	5013.5	0.8	5309.6
C3	CHF	First stage	92	6.8	1178.5	3.5	7553.3
		Second stage	75	5.9	1049.5	2.5	3669.08
		Third stage	58	3.5	862.2	2	1950.9
		Fourth stage	53	3	756.5	1	2764.4
		Fifth stage	35	2	605	0.8	2054.7
	LHF	First stage	115	18	6875.7	6	12469.6
		Second stage	87	15	5214.8	4	10585.7
		Third stage	61	7	4185.8	2	8017.3
		Fourth stage	53	3.2	3857.3	1	7287.3
		Fifth stage	42	2.5	3567.2	1	5364.5
C4	CHF	First stage	90	7	1096.2	3	3125.3
		Second stage	78	5	928.6	2.5	2049.4
		Third stage	61	3	756.6	2	1561.5
		Fourth stage	43	2	543.9	1.5	1191.2
		Fifth stage	32	1.5	506.7	0.6	998.8
	LHF	First stage	118	20	7221.9	7	21219.1
		Second stage	82	7.6	6231.5	3	8256.3
		Third stage	67	5.5	5977.9	2.5	7295.3
		Fourth stage	62	3.8	5757.6	1.3	6906.8
		Fifth stage	56	3	5526.7	1	6186.9