RE:RE:Chinook Prospect SizeSorry to ask but you could you please take this one more step for me.
The 7758 number, is that the number of barrels contained in 1 foot of pay per acre ?
Further how about just giving us a teaser....maybe do the math for us on lets say one acre with 100 feet of pay and after that I should be able to multiply that by 628 acres and the other variables, 200 feet of pay, 300.
Or maybe just define " Huge " if possible.
Espana wrote: It goes without saying 1000' of pay over one section(640acres = 1 mileX1 mile) with decent porosity, hydrocarbon saturation and in the case of gas, high pressures, resource size will be huge. The trouble lies in the uncertainty of the numbers. 1000' of porous sand filled with hydrocarbon over a square mile with no intervening barriers Is stretching credibility. The net pays for the 7 and 7X wells I believe were estimated using a simple 5 ohm resistvity cut off. Low porosity sand can yield 5 ohms as can fresher water. Several hundred feet of pay would be more than acceptable... translation FANTASTIC. Measuring the area of a structure (628 acres) does not guarantee internal continuity. That said I can give you approximate formulae to guesstimate the resources for oil and gas...you do the math as below.OIL in barrels 7758 X Area(acres) X Pay(feet) X porosity(decimal ~0.17?) X (1-Sw) X shrinkage (0.9) X Recovery factor (estimate 0.2) X TXP ownership (0.8). SW is water saturation use ~ 0.25Shrinkage 0.9 oil in the reservoir occupies more space (gassiest) in the reservoir than at surface.7758 converts acre-ft to barrelsGas in BCF 43560 X Area(acres) X Pay(feet) X Porosity(decimal ~0.17?) X (1-SW) x FVF (~300) X Recovery factor ( estimate 0.7) X TXP ownership (0.8). Again use 0.25 for SW. FVF is Formation Volume Factor... it is an estimate of compressibility - how much gas can you squeeze into a cubic foot of reservoir space at the current reservoir pressure. The 300 here is very very approximate given the unknowns of composition, reservoir pressure etc. 43560 converts acre- ft to cubic feet.
Divide the final number by 1,000,000,000 (billion) to get bc
Using the numbers advertised you have enough rope to hang yourself... I would strongly recommend you don't try to rely on the results. Down the road you'll get the real numbers..hopefully.