Geofluids / 2017 / Article / Tab 2

Research Article

Multiphase Calcite Cementation and Fluids Evolution of a Deeply Buried Carbonate Reservoir in the Upper Ordovician Lianglitag Formation, Tahe Oilfield, Tarim Basin, NW China

Table 2

Carbon, oxygen, and strontium isotopic data of host rocks and fracture- and vug-filling calcite cements by conventional methods of Lianglitag Formation carbonates in the Tahe Oilfield.

Well Depth
(m)
Sample typeHost lithologyδ18O
( VPDB)
δ13C
( VPDB)
Sr87/Sr86

S795499.96Whole rockMicritic limestones−3.7771.463
T4435515.90Whole rockMicritic limestones−7.8371.296
T7515838Whole rockMicritic limestones−6.6392.457
T9045776Whole rockMicritic limestones−6.8851.892
T7515840.20Whole rockMicritic limestones−7.1252.2290.709005
T7515835.70Whole rockMicritic limestones−7.7182.337
T7515776Whole rockMicritic limestones−6.8012.0910.710323
T7515772.7Whole rockMicritic limestones−6.5232.194
S1065884.14Whole rockMicritic limestones−4.2882.2150.710756
T7515833.9Whole rockMicritic limestones−6.852.48
T7055657.95Whole rockMicritic limestones−6.080.5630.711927
T9045803Whole rockMicritic limestones−6.5421.944
T9045792.54Whole rockMicritic limestones−8.051.704
T9045779.36Whole rockMicritic limestones−6.2471.975
S1065934.86Whole rockGrainstone−4.4931.988
S1106088.43Whole rockGrainstone−8.448−0.0780.708904
S995925.06Whole rockGrainstone−6.3351.999
S1106089.9Whole rockGrainstone−7.44−0.0280.709088
S1076186.86Whole rockGrainstone−6.6351.238
S1076188.9Whole rockSparry bioclastic limestone−6.6350.959
T7055638.99Whole rockSparry oolitic limestone−6.171−0.643
T7055648.6Whole rockGrainstone−6.6070.30.708659
T7385883.9Whole rockGrainstone−6.5350.996
T1146299.39Whole rockGrainstone−3.231.9770.70856
S1076230.33Whole rockGrainstone−5.511.107
S1106086.52Whole rockGrainstone−7.1490.190.709119
S1106083.91Whole rockGrainstone−7.5320.1150.708919
TP56158.68Whole rockGrainstone−6.5680.679
T1146304.17Whole rockGrainstone−3.6642.0910.708596
S1065885.92Whole rockSparry bioclastic limestone−3.6532.2680.708353
T7055638.3Whole rockBioclastic limestone−6.01−0.4030.708261
S1116108.7Whole rockSparry bioclastic limestone−5.5821.75
S1116105.89Whole rockSparry bioclastic limestone−5.861.7570.708202
S1116104.96Whole rockSparry bioclastic limestone−5.5581.1050.708136
S1065885.92Fracture-filling calcite cementsSparry bioclastic limestone−9.4811.6220.711119
S1106098.3Cavern-filling calcite cementsMarly limestone−11.023−1.1750.712863
S1106096.61Vug-filling calcite cementsMicritic oolitic limestone−10.624−1.201
S1106089.9Cavern-filling calcite cementsGrainstone−10.408−0.799
S1106083.91Fracture-filling calcite cementsGrainstone−9.393−0.559
T795515.75Cavern-filling calcite cementsSiltstone−10.213−2.159
T795509.3Cavern-filling calcite cementsSiltstone−8.155−0.341
T2045466.19Cavern-filling calcite cementsBreccia−10.389−0.554
T7515840.20Vug-filling calcite cementsMicritic limestones−8.3833.160.709103
T9045779.36Vug-filling calcite cementsMicritic limestones−9.0331.854

After Liu et al. [23].

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