Logging Characteristics and Identification Methods of Low Resistivity Oil Layer: Upper Cretaceous of the Third Member of Qingshankou Formation, Daqingzijing Area, Songliao Basin, China

Table 1

Response value of different curve types of thick layer sand bodies.

Well	Interval depth		Logfacies			JRT			JAC
	(m)			(Ω⋅m)	(Ω⋅m)		(μs/m)	(μs/m)
H120-8	2188	2192	Sharp-high	11	13.2	1.2	219.2	215.2	0.98
	2192	2212	Middle	8.4		1.6	242.7		0.89
H24	1898	1901	Sharp-high	9.4	12.8	1.4	235.2	210.7	0.90
	1901	1910	Middle	7.5		1.7	261.4		0.81
	1910	1918	Low	4.4		2.1	256.4		0.82
	1918	1922	Sharp-high	7.4	9.1	1.2	241.2	228.6	0.95
H15	2010	2013	Sharp-high	7.4	10	1.4	223.1	209.7	0.94
	2013	2031	Low	4.4		2.3	250.4		0.84
	2031	2035	Sharp-high	8.9	11	1.2	231.9	218.7	0.94
H120-9	2215	2229	Middle	10		1.4	238.2		0.87
	2229	2235	Sharp-high	11.8	14.2	1.2	215.1	208.3	0.97
Qx94-26	2130	2147	Middle	10.4		2.0	252.2		0.88
	2147	2153	Sharp-high	14.9	20.4	1.4	237.4	222	0.94
Q98-23	2130	2138	Sharp-high	18.5	22	1.2	220.7	211.1	0.96
	2138	2147	Middle	14.1		1.6	238.5		0.89
	2147	2152	Low	10		2.2	242.6		0.87
Q+94-21	2130	2156	Middle	10.7		2.8	231.9		0.86
	2156	2162	Sharp high	26.4	30.1	1.1	224.4	198.8	0.89
Q94-25	2122	2139	Middle	10.7		2.8	233.4		0.88
	2139	2146	Sharp-high	22.9	30.3	1.3	216	206.5	0.96
Q96-23	2130	2157	Middle	12.6		2.3	244.7		0.88
	2157	2162	Sharp-high	22	28.9	1.3	228.4	215.9	0.95
Qx110-36	2090	2094	Sharp-high	23.9	27.7	1.2	217.2	193.6	0.89
	2094	2110	Middle	13.7		2.0	234.3		0.83
	2110	2115	Low	7.2		3.8	247.4		0.78