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ABOUT OUR CALCULATIONS AND TERMINOLOGY
A note about the calculations at the base URL http://www.respectmyplanet.org/
At respectmyplanet.org , hereafter RMP, we make calculations on data and use oil & gas industry terms. The data comes from many sources. A disclaimer about our data located here should be read before reading this disclaimer. At RMP, one of the subjects on which we have focused is making calculations as they relate to oil & gas wells that use a technique called Massive Multi-Stage Hydraulic Fracturing (or MMHF). We consider MMHF wells to be any well that consumes more than 8 million gallons of water for completion and generally has greater than 20 frac stages.
- H2O Consumed - H2O consumed is the amount of water consumed for the completion of a well. We do not have consistent data related to water used to drill the well. Water consumed for lost circulation/voids during drilling operations is, however, required by the State of Michigan so we use that data where available. The main source document for water used for completion is the Record of Well Completion[EQP-7130]. Water is generally reported on form EQP-7130 in barrels which we convert to gallons by multiplying barrels by 42 (e.g. 1bbl = 42 gallons). We appreciate when people double check our math. If you ever find an error in how we calculated the water consumed, please let us know @ email@example.com.
- Flowback or Produced Water - This is basically water that comes uphole. Flowback Water is generally described as water that went downhole and the same water came back uphole. Produced Water is generally described as water that was produced by the formation. For example, many Antrim fracks used no water at all for completion, yet they produce water for years and years as they also produce natural gas. MMHF wells into the Collingwood formation on the other hand seem to adsorb water according to our preliminary investigations. This means that of all the water than goes downhole, only a percentage will come back up. The rest will remain locked in the formation. The information to calculate Flowback or Produced Water comes from two sources: The Initial Production Report[EQP-7127] and the Michigan Production Database (MPDB). The MPDB is a dataset that is updated each month by the Michigan Public Service Commission (MPSC). The water in the production database is reported in barrels. So the calculation is to sum the amount of barrels reported and multiply by 42 to get gallons.
- Flowback Percentage - This is really only calculated on wells that flowback a percentage of water less than that consumed. If the well has produced more water than it consumed, we still make a calculation the other way to understand the well's behavior. If a well consumed 10,000,000 gallons of water and flowed back 1,000,000 gallons we would calculate the flowback percentage as 10% or 1,000,000 / 10,000,000. If the well consumed 25,000 gallons of water and produced 2,500,000 million gallons over 30 years, we would say this well produced 10 times more water than it consumed or 2,500,000 / 25,000 = 10.
- Sand Consumed - This information comes straight from the EQP-7130 similar to the H2O consumed and it is reported in the same place. This number is reported on the form and by RMP in pounds. Many times the sand used is reported in sacks. A standard sack, according to the API, is 1 cubic foot whether describing sand or cement. RMP calculates one cubic foot of dry sand as 100 pounds of sand.
- Oil Produced - This information comes from the MPDB and/or the EQP-7127. Sometimes the initial production numbers overlap with the MPDB numbers and we have to make sure not to duplicate data into our calculations. We report oil produced in barrels.
- NGL Produced - This information comes from the MPDB and/or the EQP-7127. Sometimes the initial production numbers overlap with the MPDB numbers and we have to make sure not to duplicate data into our calculations. We report NGL produced in barrels.
- Condensate Produced - This information comes from the MPDB and/or the EQP-7127. Sometimes the initial production numbers overlap with the MPDB numbers and we have to make sure not to duplicate data into our calculations. We report Condensate produced in barrels.
- Natural Gas Produced - This information comes from MPDB and/or the EQP-7127. Sometimes the initial production numbers overlap with the MPDB numbers and we have to make sure not to duplicate data into our calculations. We report Natural Gas produced in mcf or thousand cubic feet. We will sometimes convert to mmcf or million cubic feet ('m' stands for one thousand and 'mm' stands for 1000x1000 or one million).
- Flowing Casing Pressure - this is the pressure reported on the EQP-7127 or Initial Production Report. The FCP is important supplemental information for us to know how hard the well is pushing contents uphole.
- H20 to Hydrocarbons Produced - This is a ratio between how much water was consumed to the amount hydrocarbons produced.