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Yolla 4

Bass, Tasmania

Yolla 4 is a petroleum well in the Bass, Tasmania, operated by Origin, drilled to a total depth of 3,235 m.

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Well Information

Well Name
Yolla 4
Basin
Bass
State
Tasmania
Classification
FAIN
Operator
Origin
Driller
Ensco Offshore
Data Summary
Partial WDS Available

Drilling Data

Total Depth
3,235 m
Datum Elevation
43.0 m
Spud Date
10/06/2004
Completion Date
31/07/2004
Permit
T / L1
Rig
Ensco 102

Location

Latitude
-39.8446
Longitude
145.8183

Available Log Data

9
Log Streams
132
Curves
1,131,880
Data Points
214,665
Metres

Borehole Geometry (3 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
DEVI 116 m 3242 m 3125 m
HAZI 116 m 3242 m 3125 m
TVD 124 m 3235 m 3111 m

Caliper (4 curves)

Borehole diameter measurements indicating hole condition and washout zones.

Curve Start End Interval
C1 2586 m 3233 m 647 m
C2 2586 m 3233 m 647 m
HDAR 2586 m 3242 m 655 m
HDAR 2545 m 3242 m 696 m

Chromato (25 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
CO2 900 m 3235 m 2335 m
CONIN 124 m 3235 m 3111 m
CONOUT 124 m 3235 m 3111 m
ETHA 900 m 3235 m 2335 m
ETHAX 900 m 3235 m 2335 m
FLIN 124 m 3235 m 3111 m
H2SLINE 900 m 3235 m 2335 m
H2SPITS 900 m 3235 m 2335 m
H2SSHAKER 900 m 3235 m 2335 m
IBUT 900 m 3235 m 2335 m
IBUTX 900 m 3235 m 2335 m
IPEN 900 m 3235 m 2335 m
IPENX 900 m 3235 m 2335 m
MDOU 124 m 3235 m 3111 m
METH 900 m 3235 m 2335 m
METHX 900 m 3235 m 2335 m
MTIN 124 m 3235 m 3111 m
MTOU 124 m 3235 m 3111 m
MWIN 124 m 3235 m 3111 m
NBUT 900 m 3235 m 2335 m
NBUTX 900 m 3235 m 2335 m
NPEN 900 m 3235 m 2335 m
NPENX 900 m 3235 m 2335 m
PROP 900 m 3235 m 2335 m
PROPX 900 m 3235 m 2335 m

CMR (27 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
BFV 2576 m 3230 m 654 m
CBF1 2576 m 3230 m 654 m
CBF2 2576 m 3230 m 654 m
CBF3 2576 m 3230 m 654 m
CBF4 2576 m 3230 m 654 m
CBF5 2576 m 3230 m 654 m
CBF6 2576 m 3230 m 654 m
CBF7 2576 m 3230 m 654 m
CBP1 2576 m 3230 m 654 m
CBP2 2576 m 3230 m 654 m
CBP3 2576 m 3230 m 654 m
CBP4 2576 m 3230 m 654 m
CBP5 2576 m 3230 m 654 m
CBP6 2576 m 3230 m 654 m
CBP7 2576 m 3230 m 654 m
CBP8 2576 m 3230 m 654 m
CFF1 2576 m 3230 m 654 m
CFF2 2576 m 3230 m 654 m
CFF3 2576 m 3230 m 654 m
CFF4 2576 m 3230 m 654 m
CFF5 2576 m 3230 m 654 m
CFF6 2576 m 3230 m 654 m
CFF7 2576 m 3230 m 654 m
CMFF 2576 m 3230 m 654 m
KSDR 2576 m 3230 m 654 m
KTIM 2576 m 3230 m 654 m
TCMR 2576 m 3230 m 654 m

Density (6 curves)

Bulk density measurements for porosity calculation and lithology identification.

Curve Start End Interval
HDRA 2590 m 3228 m 638 m
HPRA 2590 m 3228 m 638 m
PEF8 2590 m 3228 m 638 m
PEFZ 2590 m 3228 m 638 m
RHO8 2590 m 3228 m 638 m
RHOZ 2590 m 3228 m 638 m

Dip and Scan (2 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
DDA 2595 m 3238 m 643 m
DDIP 2595 m 3238 m 643 m

GR (13 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
ECGR 2545 m 3224 m 678 m
ECGR1 2576 m 3230 m 654 m
EHGR 2545 m 3223 m 677 m
GR 2545 m 3224 m 678 m
GR1 2576 m 3230 m 654 m
HBHK 116 m 3175 m 3058 m
HCGR 116 m 3202 m 3085 m
HFK 116 m 3202 m 3085 m
HGR 2545 m 3223 m 677 m
HSGR 116 m 3202 m 3085 m
HTHO 116 m 3202 m 3085 m
HURA 116 m 3202 m 3085 m
SGRC 881 m 3222 m 2341 m

Logging Parameters (1 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
TENS 2545 m 3242 m 696 m

Miscellaneous (3 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
DEPT 900 m 3235 m 2335 m
DEPT 881 m 3239 m 2358 m
DEPT 124 m 3235 m 3111 m

Mudlog (18 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
ECD 124 m 3235 m 3111 m
PUMPTIME 124 m 3235 m 3111 m
ROP 124 m 3235 m 3111 m
RPM 124 m 3235 m 3111 m
SPP 124 m 3235 m 3111 m
SROP 901 m 3239 m 2338 m
TDEP 2545 m 3242 m 696 m
TDEP 2576 m 3230 m 654 m
TDEP 116 m 3242 m 3125 m
TDEP 2586 m 3242 m 656 m
TDEP 2545 m 3242 m 696 m
TDEP 2576 m 3230 m 654 m
TGAS 900 m 3235 m 2335 m
TGASX 900 m 3235 m 2335 m
TORQ 124 m 3235 m 3111 m
TREVS 124 m 3235 m 3111 m
WOB 124 m 3235 m 3111 m
WOH 124 m 3235 m 3111 m

Neutron (4 curves)

Porosity measurements derived from neutron or density tools, indicating reservoir storage capacity.

Curve Start End Interval
HNPO 2552 m 3225 m 673 m
HTNP 2552 m 3225 m 673 m
NPHI 2552 m 3224 m 672 m
TNPH 2552 m 3224 m 672 m

Resistivity (21 curves)

Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.

Curve Start End Interval
DI_HRLT 2590 m 3225 m 635 m
HMIN 2590 m 3228 m 638 m
HMNO 2590 m 3228 m 638 m
RLA0 2590 m 3225 m 635 m
RLA1 2590 m 3225 m 635 m
RLA2 2590 m 3225 m 635 m
RLA3 2590 m 3225 m 635 m
RLA4 2590 m 3225 m 635 m
RLA5 2590 m 3225 m 635 m
RM_HRLT 2545 m 3242 m 696 m
RT_HRLT 2590 m 3225 m 635 m
RXO_HRLT 2590 m 3225 m 635 m
RXO8 2590 m 3228 m 638 m
RXOZ 2590 m 3228 m 638 m
SDDE 883 m 3225 m 2341 m
SEDP 883 m 3225 m 2341 m
SEMP 883 m 3225 m 2341 m
SESP 883 m 3225 m 2341 m
SEXP 883 m 3225 m 2341 m
SFXE 883 m 3225 m 2341 m
STEM 884 m 3226 m 2341 m

Sonic (4 curves)

Acoustic travel time logs used for porosity estimation and seismic calibration.

Curve Start End Interval
DTCO 116 m 3242 m 3125 m
DTSM 116 m 3242 m 3125 m
PR 116 m 3242 m 3125 m
VPVS 116 m 3242 m 3125 m

SP (1 curves)

Spontaneous potential logs measuring natural electrical potentials for permeability indication.

Curve Start End Interval
SP 2590 m 3242 m 651 m

Location Map

Nearby Wells