Site HE-1A Summary | Table of Contents

Leg 197 Operations Plan and Time Estimate
Option 3
Site	Location	Water	Operations Description	Transit	Drilling	Logging	Total
No.	Lat/Long	Depth		(days)	(days)	(days)	On-site
		(mbrf)
Yokohama	35°16.80'N		Transit 1552 nmi from Yokohama, Japan, to Site HE-3B @ 11.0 kt	5.9
	139°23.40'E
HE-3B	50°48.60'N	2740	Drill ahead through sediment with a center bit to 300 mbsf		8.1	1.2	9.3
	167°33.00'E		RCB in sediment from 300 to 450 mbsf
			RCB from 450 to 600 mbsf (150 m into basement) using
			FFF for one bit change
			Wireline logs (Triple combo, Mag Tool, and FMS)
			Transit 11 nmi from Site HE-3B to Site HE-3A @ 11.0 kt	0.0
HE-3A	50°57.00'N	2773	Drill ahead through sediment with a center bit to 300 mbsf		8.2	0.8	9.0
	167°44.40'E		RCB in sediment from 300 to 500 mbsf
			RCB from 500 to 650 mbsf (150 m into basement) using
			FFF for one bit change
			Wireline logs (Triple combo and FMS)
			Transit 580 nmi from Site HE-3A to Site HE-4B @ 10.5 kt	2.3
HE-4B	41°29.00'N	1300	RCB to 200 mbsf (160 m into basement)		5.1	0.6	5.7
	170°38.00'E		Wireline logs (Triple combo and FMS)
			Transit 200 nmi from Site HE-4B to Site HE-5C @ 10.5 kt	0.8
HE-5C	38°09.50'N	1480	RCB to 220 mbsf (160 m into basement)		5.3	0.6	5.9
	170°50.00'E		Wireline logs (Triple combo and FMS)
			Transit 201 nmi from Site HE-5C to Site HE-6A @ 10.5 kt	0.8
HE-6A	34°58.94'N	1331	RCB to 240 mbsf (160 m into basement)		5.0	0.6	5.6
	172°08.98'E		Wireline logs (Triple combo and FMS)
Yokohama	35°16.80'N		Transit 1640 nmi from Site HE-6A to Yokohama, Japan @ 10.0 kt	6.8
	139°23.40'E
			TOTAL:	16.5	31.7	3.8	35.5
				TOTAL DAYS:		52.0

Site HE-1A Summary | Table of Contents