ResvEngine

Material balance calculator

0D tank match — oil Havlena–Odeh, Campbell / Cole, energy; dry-gas p/Z. Same VB / DAK PVT as flash.

Idledry gas605/605 rows

Scenario

Unit system

Clarke Lake Slave Point A, McNeil et al., SPE-196009. Fig. 11 surveys, Fig. 9 cumulatives. Aquifer off; G is the last Gp. Temperature and gas gravity are not in the paper.

Tank typeType

Reservoir

Gas in place

Aquifer

We = 0. If p_meas ≫ volumetric p_calc, try Pot or Fetkovich — Wei / we_mult starts from the no-aquifer residual; J from the history length. Not a fit.

History

605 / 605 used in match

Uset (d)NpGpWpp
00002865.634
22.6670002862.829
45.30010002854.402
68.11950002876.9
90.66820002854.416
113.35210002854.423
136.03590002854.43
158.71980002854.437
181.64030002893.803
1066.34660002899.697
1088.67550002840.664
1111.39330002846.294
1133.99280002832.244
1156.74420002843.497
1179.29290002821.013
1202.10350002842.105
1224.84650002851.952
1429.05230002860.448
1451.70260002854.833
1474.42040002860.462
1497.10420002860.469
1519.78810002860.476
1542.47190002860.483
1565.22340002871.736
1587.89040002868.931
1883.068700.004302916.815
1905.651300.050902899.954
1928.368800.097502905.583
1951.17100.143702925.27
2064.353900.261302885.945
2087.037802.477402885.952
2109.738803.068702888.771
2132.422603.277602888.777
2155.106503.962202888.784
2177.773505.069302885.98
2200.356206.722902869.119
2222.972508.405402857.88
2245.6731010.244702860.698
2268.357012.079102860.705
2291.058013.715702863.524
2313.7587015.347902866.342
2336.4425016.847802866.349
2359.1096017.33410.00382863.544
2381.7598017.78940.02242857.929
2404.1562018.21520.03972810.142
2426.8401018.68270.0572810.149
2449.7606019.19240.07472849.515
2472.3265019.51950.09242829.842
2495.0103020.30060.09242829.849
2517.5251021.08630.11012801.742
2540.2005022.66730.12782800.344
2721.4266039.7090.38132759.634
2744.1952042.52140.41652773.698
2766.8623045.35520.45152770.893
2789.5461046.76550.45152770.9
2812.3483048.27140.48282790.587
2835.0321049.80580.5142790.594
2857.5809051.33610.54572768.11
2880.2819053.45760.57752770.928
2902.9318055.79950.61622765.312
2925.9199056.68160.65492815.924
3084.0819079.55950.84332711.951
3106.7657082.98140.88662711.958
3129.4496086.06450.92992711.965
3152.1166086.7290.97312709.161
3174.8852090.03430.98542723.225
3197.5015093.20570.96722711.986
3220.2529096.51820.94932723.239
3242.920100.49050.93132720.434
3378.75320122.55991.49272675.493
3401.4370127.53161.49272675.5
3424.07010134.05081.63072667.073
3446.55120137.44211.73562633.343
3469.25190139.48911.84062636.162
3491.95290143.06781.94562638.98
3514.75510146.42272.05162658.667
3537.43890148.65372.15742658.674
3559.93690150.13572.20072627.755
3582.65470153.77282.27472633.385
3605.3470157.9232.40912634.798
3741.10380183.11133.10982577.206
3763.75410188.27673.27212571.59
3786.65780192.9533.3872608.145
3809.12180197.59163.45412571.604
3831.80560201.82763.56042571.611
3854.48980204.1633.66682571.618
3877.20730206.40993.77322577.247
3899.85750207.55093.86312571.632
3922.43980209.41643.95282554.77
3945.10690212.13644.04252551.966
3967.79070215.81394.14812551.973
3990.50860219.59184.25382557.602
4013.15880223.39584.25382551.987
4035.84270226.51044.32842551.994
4058.61090232.22854.39662566.057
4194.630257.75635.02632552.042
4217.34780260.88395.13232557.672
4239.99770262.66525.22972552.056
4262.69870265.08865.27022554.874
4285.38260268.07195.31472554.881
4308.19310270.64455.31472575.974
4330.81780274.11245.42022566.141
4353.51880275.66045.52572568.959
4375.88160279.60045.69292515.55
4420.6240288.67416.12222411.542
4443.27390293.93966.33682405.926
4465.82260298.95886.56142383.442
4488.6420303.9786.78562405.94
4511.32580308.76757.00932405.947
4534.00970308.99727.23332405.954
4556.69350314.1887.46282405.961
4579.90150321.81827.6322493.121
4602.5770325.40467.73692491.722
4625.2860328.90067.73692495.946
4647.99540332.41537.84192500.17
4670.14680335.82897.94622411.618
4693.36320335.98068.03382500.184
4716.02180338.94858.1222495.974
4738.66360344.3518.22662488.952
4760.96690348.14428.33132425.703
4783.53280351.93278.43732406.03
4806.18270356.75038.49792400.414
4896.64780372.85979.05312355.46
4919.2980378.03479.05312349.844
4941.86350382.89879.20752330.171
5055.33390407.23759.16762338.64
5077.89940411.67449.28742318.967
5100.39740412.73679.4572288.049
5122.94610418.91349.62662265.565
5214.13810442.798810.30142341.5
5236.75430448.42810.30142330.261
5259.45540453.327310.46772333.08
5282.05450458.733510.62132319.03
5304.72150464.070910.77492316.225
5326.93240469.159910.92742237.513
5349.61620474.153911.08052237.52
5372.28330478.335911.18572234.716
5394.89960481.480411.29092223.477
5643.76340527.99313.05362113.909
5666.44720533.06213.29472113.916
5689.49450536.668613.46412174.368
5712.170540.799213.63072172.969
5734.85380544.801413.79922172.976
5757.52090548.548213.96842170.172
5780.17110552.320114.13672164.556
5802.6690556.094714.24282133.638
5826.04580557.132914.37572248.912
5848.13830561.638214.37822150.52
5870.80530566.143514.59232147.715
5893.60750570.777414.84562167.402
5916.30820575.409915.13772170.22
5938.78930579.372715.42912136.491
5961.43960583.658615.72130.875
5984.13180587.677215.9682132.287
6006.79050591.745416.23282128.077
6029.42350595.209816.46322119.65
6052.23410598.934116.69352140.742
6074.92640601.617716.92392142.155
6097.50910604.429717.09222125.294
6120.18450606.974917.24722123.895
6142.91070609.728517.24722130.93
6165.51020612.435217.40172116.88
6188.23610615.143417.55972123.916
6210.87790615.688417.72152116.894
6233.57020619.040417.91162118.307
6255.89060622.129618.22292057.869
6278.64240625.131918.53272069.121
6301.27550627.999218.8282060.694
6323.95930630.818219.09662060.701
6346.74470633.36419.31442077.576
6369.51290636.13919.55472091.64
6392.19720638.812419.80582091.647
6414.99930640.890220.0532111.334
6437.66640642.972220.0532108.529
6460.35860645.042820.2992109.942
6483.03410647.132520.54092108.543
6505.48130649.247920.74042069.191
6528.12310651.56520.96182062.169
6550.54510653.660521.20452045.776
6573.38930653.89321.46862045.315
6595.9720656.311821.75322028.453
6618.73180658.730122.03682041.111
6641.41560661.146622.32092041.118
6664.48850663.609522.6342105.787
6687.17230665.910222.94772105.794
6709.95770667.908523.30662122.67
6732.29490669.385723.57152065.043
6755.07190670.396823.58372080.513
6777.7390671.341123.85012077.708
6800.42280672.30624.10062077.715
6823.05590673.279224.32922069.288
6845.48630674.256524.5452027.124
6868.17050675.875224.74112027.131
6891.1670677.491424.92622079.149
6913.87610678.991525.23742083.373
6936.57710679.287925.55472086.191
6959.23570681.078425.8762081.981
7049.89520690.431426.60682069.357
7072.49460692.233427.02292055.307
7095.19530693.957827.43672058.126
7299.080706.595430.3912013.206
7321.86540709.143330.82692030.081
7344.56610711.218231.25592032.899
7367.26710713.523331.25592035.718
7390.00170715.777831.69132044.159
7412.65160716.763732.20082038.543
7435.30180717.81932.56052032.927
7457.95210718.474332.91922027.311
7480.98220719.207733.18012084.952
7503.59880719.551833.18442073.713
7526.39260720.023933.1862091.994
7549.07650720.098133.17232092.001
7571.76030720.175633.16682092.008
7594.25830720.247733.16472061.09
7617.1280720.442233.1632092.022
7639.81190720.734933.18952092.029
7662.27620720.976733.27062055.488
7730.53090723.761133.53562089.245
7753.16390725.161833.78282080.818
7775.74630726.416234.09432063.957
7798.2950727.454434.40652041.472
7820.89440728.522234.71062027.422
7843.69660729.604434.96862047.109
7866.41450730.68135.22672052.739
7889.09830730.919435.28722052.746
7911.6810731.175535.33612035.884
7934.33090731.447935.37422030.269
7957.01470731.821435.43062030.275
7979.96920732.160535.43062075.265
8002.70380732.578635.49982083.706
8025.42170733.911235.65362089.336
8161.44040741.19237.24912075.32
8184.05670741.952837.55472064.082
8206.65610742.643337.85582050.032
8229.44150743.327938.06272066.907
8252.12540743.378538.06272066.914
8274.80920743.378538.06272066.921
8297.51030743.378538.06272069.739
8320.21090743.378538.06272072.557
8342.8780743.378538.58252069.753
8365.66340749.310738.7062086.628
8388.3640750.318538.85062089.447
8410.91270751.2939.01782066.962
8433.54580752.061439.2042058.535
8456.21280752.866939.46312055.731
8478.93070753.725839.72332061.36
8501.63130754.426940.01392064.179
8524.34910755.009540.41462069.809
8547.0330755.544440.73822069.815
8569.71720755.679941.0242069.822
8592.35030756.205941.15332061.395
8615.16930756.205941.34452083.893
8637.7180756.205941.58852061.409
8660.40180756.205941.58852061.416
8683.08570759.761341.82512061.423
8705.78670760.783641.91172064.241
8728.60570761.735642.03442086.739
8751.34030762.69742.1792095.18
8773.93980763.656342.32322081.13
8796.60690764.71442.54762078.326
8819.30750765.753342.81062081.144
8842.09290765.911642.86962098.02
8864.67560766.037142.96642081.158
8887.32550766.15943.07032075.542
8910.0940766.177543.21212089.606
8932.79470766.342443.37192092.425
8955.51250767.426643.42142098.054
8978.19640768.362143.60762098.061
9000.88020769.236743.782098.068
9023.54730770.103843.95222095.264
9046.19750770.762544.12332089.648
9068.88140771.415444.29212089.655
9091.53160772.053744.42752084.039
9114.33380772.705144.55082103.726
9137.05130773.38444.67892109.355
9204.98480774.686544.96232089.697
9227.55040775.292145.1142070.024
9250.16660775.869445.2442058.785
9272.96880776.396945.37672078.472
9295.68660776.891745.47442084.102
9318.40450777.385945.56572089.731
9341.13910777.887645.65722098.172
9363.73820778.396145.72872084.122
9386.37160778.945545.80182075.695
9409.07230779.569645.90812078.513
9431.77330780.228946.0212081.332
9454.49080780.885646.14012086.961
9477.24260780.885646.26362098.214
9613.26130784.319746.88742084.199
9635.89440784.790246.95862075.771
9658.49390785.264447.02692061.721
9681.41440785.745347.08122101.088
9704.04780786.227847.14252092.661
9726.73170786.716647.20592092.668
9749.43230787.25547.28752095.486
9772.11620787.815847.36572095.493
9794.78320787.815847.45682092.688
9817.48430788.405247.54972095.507
9840.16810788.999647.54972095.514
9862.73360789.631547.63732075.841
9885.46820790.293347.72082084.282
9908.16890790.782747.86282087.1
9930.76840791.264148.00422073.05
9953.45220791.69348.13232073.057
9976.170792.115648.24122078.687
9998.83710792.489348.33092075.883
10021.52090792.892448.38392075.889
10044.12040793.305848.43822061.839
10066.80430793.764348.49542061.846
10089.77560794.210748.60832109.647
10112.1720794.210748.72762061.86
10134.85620794.661548.72762061.867
10157.540795.115348.85392061.874
10180.32540795.655148.98372078.749
10202.97530796.205949.08542073.134
10225.64240796.820649.19362070.329
10339.18030799.683350.11942090.044
10361.77940800.052950.24992075.994
10384.42970800.414750.3852070.378
10407.19830800.779250.51082084.442
10430.03410800.779250.62542109.751
10452.70110801.145850.62762106.947
10475.33420801.145850.71552098.519
10498.0520802.546250.77682104.149
10520.63470803.210450.9032087.288
10543.30180803.877751.01862084.483
10566.00240804.538251.14812087.302
10588.70310805.332951.28542090.12
10611.43770806.120551.42962098.561
10634.10470806.894951.64562095.757
10656.77180807.661951.85832092.952
10679.33730808.246852.05642073.279
10702.02150808.825152.2372073.286
10724.65460808.825152.36272064.859
10747.62590809.351152.48582112.66
10770.20820809.843552.48712095.798
10792.97680810.33552.6082109.862
10815.54230811.046252.73332090.189
10838.07420811.68152.86722064.894
10860.74130812.310453.00072062.089
10883.44190812.941953.13772064.908
10906.12580813.573353.3112064.915
10928.75880814.21453.49092056.487
10951.42590814.840853.71112053.683
10974.22810815.473553.9322073.37
10996.92910816.154554.16282076.188
11019.54540816.154554.33232064.949
11042.43190816.835654.5012098.693
11064.99780817.479154.5012079.02
11087.68170818.104654.66872079.027
11110.34870818.723154.84062076.223
11132.9310819.293255.00762059.361
11155.46290819.851855.21922034.066
11178.21440820.417455.40752045.318
11359.90540822.550656.142081.922
11382.57250822.558456.14292079.117
11405.22240822.558456.20842073.502
11428.17690822.558456.27472118.491
11450.75950822.558456.34342101.629
11473.46020823.948756.42462104.448
11496.22880824.318756.55672118.512
11518.89550824.684156.72482115.707
11541.59650825.050356.89442118.525
11564.28030825.431357.06662118.532
11586.8290825.848557.29342096.048
11609.41130826.265657.51892079.187
11632.09560826.52157.63832079.194
11654.77940826.778757.75312079.201
11677.5140826.778757.75552087.642
11700.23150827.030657.87152093.272
11723.01690827.282557.98952110.147
11745.73470827.526958.15162115.777
11768.41860827.812358.32812115.783
11791.10240828.115458.52072115.79
11813.8370828.425258.71392124.232
11836.50410828.842958.78042121.427
11859.15430829.251658.8712115.811
11881.8550829.660458.97782118.63
11904.47130830.062459.07832107.391
11927.07070830.421559.24872093.341
11949.7210830.783859.41332087.725
11972.38770830.783859.41332084.921
12063.10660832.414960.3982082.137
12085.73970832.788360.62872073.71
12108.42360833.178960.85872073.717
12131.22580833.504661.10552093.403
12153.77450833.829361.35232070.919
12176.45830834.111761.58082070.926
12199.24370834.392361.80072087.801
12221.97830834.664161.94722096.243
12244.83130834.942962.0872124.363
12267.36320835.215462.20312099.068
12290.01350835.215462.20312093.452
12312.5790835.488562.31922073.779
12335.44870835.712862.43532104.711
12562.23720838.392163.47382096.347
12584.87030838.702563.47382087.919
12607.53730838.702563.63872085.115
12630.54220839.014763.7692138.538
12653.07410839.325563.89442113.243
12675.63970839.569464.00192093.57
12698.13760839.813264.1052062.652
12720.70310840.050864.20522042.979
12743.18420840.300764.30552009.249
12765.88530840.550764.4062012.067
12788.58590840.855764.53392014.886
12811.43890841.165964.66072043.007
12834.05520841.471864.7852031.768
12856.84050841.777764.9072048.643
12879.62590842.199765.05712065.519
12902.41130842.199765.05712082.394
12925.17950842.611765.24812096.458
12947.69470843.029165.42952068.351
12970.46290843.453565.57982082.415
12993.33260843.968265.72722113.347
13015.84770844.482965.87872085.24
13038.53160844.941966.0342085.247
13061.21540845.347466.20552085.254
13083.74740845.733166.3932059.958
13106.41440846.081966.57682057.154
13129.13190846.363666.712062.784
13151.68060846.644866.81832040.299
13197.1330846.921966.97192054.37
13219.80010846.921966.97192051.566
13334.11530846.921967.21722200.604
13356.79910849.096467.24682200.611
13379.39860849.407267.25972186.561
13402.08250849.71867.27292186.568
13424.47920850.022267.28632138.781
13447.28140850.296167.30172158.468
13469.94850850.569667.31962155.664
13492.5140850.84367.3372135.991
13514.80920851.128767.35182071.336
13537.54380851.128767.3662079.777
13560.62470851.421567.36632145.851
13583.26650851.725567.38332138.83
13605.96720852.032267.4042141.648
13628.58350852.405767.42672130.41
13651.26770852.405767.44942130.417
13673.850852.405767.47192113.555
13696.7030852.405767.49452141.676
13719.370853.344667.49982138.872
13741.91870853.581467.50322116.387
13764.56860853.818267.50612110.772
13787.11730853.977967.50692088.287
13809.86910854.176167.50772099.54
13832.48540854.37967.50422088.301
13855.15240854.456567.50422085.497
13877.93750854.689767.50092102.372
13900.60450854.955967.49762099.568
13923.28840855.2367.49452099.575
13945.98940855.498867.49152102.393
13968.63930855.776367.48842096.777
13991.30630856.089767.48512093.973
14013.99020856.402867.48172093.98
14036.65720857.046367.4782091.175
14059.39180857.689967.48682099.616
14082.00810858.333567.50192088.378
14104.70910858.832767.52332091.196
14127.44380858.85367.53822099.637
14150.17840859.337467.54542108.078
14195.25860860.338967.55752060.298
14218.09480860.781967.57272085.608
14240.77860861.226567.60912085.615
14263.49650861.678167.64162091.245
14286.19710862.1367.66272094.063
14308.8810862.594967.67152094.07
14331.56520863.061967.7112094.077
14354.26580863.52767.75092096.895
14377.00050863.908867.87092105.336
14399.70150864.296267.95882108.155
14422.30060864.670968.0432094.105
14444.98440864.670968.10112094.111
14467.7530865.05168.10112108.175
14490.33530865.422268.15572091.314
14513.03640865.789768.20412094.132
14535.72020866.140768.25262094.139
14558.40410866.140768.27452094.146
14580.98670866.684168.29662077.285
14603.77210866.965268.31362094.16
14626.47280867.245968.33122096.978
14648.63290867.533368.34892009.832
14671.33350867.78468.41112012.65
14694.01740868.030868.47422012.657
14716.70120868.272168.54932012.664
14739.38510868.509168.61412012.671
14762.30560868.509168.66042052.038
14785.27690868.765268.66152099.838
14807.96110869.101768.71832099.845
14830.76330869.438268.74952119.532
14853.22730869.774768.78052082.991
14875.72520870.104668.82082052.072
14898.30790870.43568.86342035.211
14920.97490870.43568.91982032.407
14943.65880870.43568.97542032.414
14966.32580871.106369.03342029.609
14988.99290871.325769.07722026.805
15011.42330871.543169.11931984.641
15420.18990875.780969.70742060.673
15442.77220875.994269.7682043.812
15465.5240876.201569.82682055.064
15488.20780876.408469.88332055.071
15510.89170876.560669.92682055.078
15533.91380876.710969.97182111.313
15556.5720876.862370.01772107.103
15579.26470877.057770.07052108.515
15601.94850877.247770.10412108.522
15624.63240877.436570.13932108.529
15647.23180877.625470.17312094.479
15669.72980877.826870.21022063.561
15692.36290877.826870.24732055.134
15715.04670878.027670.25262055.141
15737.73090878.229170.30222055.148
15760.39760878.430370.35552052.343
16145.83830881.332172.51382021.536
16168.47130881.507472.66012013.109
16191.29070881.683972.80432035.607
16214.04210881.89872.97942046.859
16236.69240882.113273.15862041.243
16259.40980882.334173.40372046.873
16282.38110882.550273.42932094.674
16305.0650882.755473.70012094.681
16327.7660882.762674.05782097.499
16350.17920882.968574.41982052.524
16372.84630883.175974.68292049.719
16395.49650883.388374.94522044.103
16418.12960883.600875.2022035.676
16440.81340883.85475.45872035.683
16463.59880884.118875.69962052.558
16486.25750884.390175.96422048.348
16508.61190884.666776.34781993.533
16599.88820885.644877.4232083.525
16622.57210885.644877.67982083.532
16645.18830885.846477.92962072.294
16667.87260886.035378.18692072.301
16690.55640886.224978.43192072.308
16713.17270886.399978.63722061.069
16735.92410886.570478.84672072.321
16758.55720886.741279.14072063.894
16804.66890887.089379.73792187.609
16827.31920887.267680.08282181.993
16849.5720887.450980.08282110.31
16872.29790887.634680.42932117.345
16895.02410887.822180.78062124.381
16917.69950888.012881.13942122.982
16940.3330888.012881.4922114.555
16962.6110888.239981.8452047.088
16985.29490888.46782.20182047.095
17008.30020888.687682.48222100.519
17031.08560888.905782.71552117.394
17053.330889.126282.94732044.305
17076.03070889.340183.17732047.123
17098.71450889.554583.40652047.13
17121.39840889.762383.61762047.137
17144.08220889.939883.84332047.144
17166.74930890.116983.84332044.339
17189.43310890.29484.14222044.346
17212.53990890.471484.43952114.638
17235.2490890.648884.76082118.862
17257.89920890.648885.07082113.246
17280.58310890.813785.36622113.253
17303.19940890.972785.66182102.015
17325.84080891.131486.0342094.993
17348.55030891.290486.41112099.217
17370.81990891.449186.75262030.345
17393.50380891.60887.09272030.352
17416.17080891.766987.43722027.547
17438.83790891.925987.43722024.743
17461.50490892.084987.77852021.938
17484.27350892.237588.1222036.002
17506.87260892.390388.45352021.952
17529.57360892.568188.79232024.771
17552.25750892.568189.14672024.778
17574.92450892.767389.38962021.973
17598.05620892.964289.63892096.482
17620.72320893.160889.86612093.678
17643.4750893.350990.09642104.93
17666.12490893.54190.5842099.314
17688.76680893.730990.92552092.293
17711.50140893.919491.2862100.734
17733.64430894.109491.63892010.776
17756.3450894.299591.76162013.595
17779.4430894.489592.24782082.481
17802.21160894.679692.72972096.545
17824.90380894.869793.22082097.957
17847.63850895.048193.71122106.398
17870.18720895.048194.16682083.914
17892.8710895.219994.61572083.921
17915.76630895.347394.98442119.07
17938.23910895.47695.32212083.935
17960.82980895.606595.66882068.479
17983.49680895.772396.07872065.675
18006.15550895.944296.48312061.465
18029.00850896.122296.88682089.585
18051.91180896.306397.21372126.14
18074.5960896.48497.50762126.147
18097.24590896.66297.54022120.532
18119.81140896.8497.86592100.859
18142.29260897.01898.24632067.129
18164.99360897.01898.64672069.947
18187.7110897.196199.04762075.577
18210.36130897.374199.52022069.961
18232.9440897.552599.98312053.1
18255.30640897.731100.42061999.69
18277.97350897.94100.85211996.886

Theory: Gas Z / p/Z

Gray points are measured p/Z. The dashed line is the G slider: (pi/Zi)(1 − Gp/G), from the intercept down to zero at Gp = G. Early points on the line and a late upward hook means turn the aquifer on — p/Z** appears then.

Solving…

Equation at point

Click a p/Z point — or a history row — to see voidage F and expansion E_g + E_f,w with the same numbers the solver used.

Residual r(t)

—

Pressure p(t)

Cumulatives Np, Gp, Wp

Aquifer influx We(t)

—