Unconventionals
Investment Cost
Dr. Van Kirk's stuff
Miscellanous #1
Miscellaneous #2
100
What does AFE stand for, and what is it's purpose?
A budgetary document, usually prepared by the operator,to list estimated expenses of drilling a well to a specified depth, casing point or geological objective, and then either completing or abandoning the well. Such expenses may include excavation and surface site preparation, the daily rental rate of a drilling, costs of fuel, drillpipe, bits, casing, cement and logging, and coring and testing of the well, among others. This estimate of expenses is provided to partners for approval prior to commencement of drilling or subsequent operations. Failure to approve an authority for expenditure (AFE) may result in delay or cancellation of the proposed drilling project or subsequent operation.
100
What are decline curves?
Plot of producing rate vs time. They are used to extrapolate future production rates and are independent of reservoir properties
200
__________ has allowed the pursuit of reservoirs with much lower permeability
Increased reservoir contact
400
List 7 components of the AFE (out of 11)
Signature Page, Cost Worksheet, Geologic Section, Production Eng, Reservoir Eng, Facilities Eng, Directional Drilling Targets, Casing Requirements and Producing Equipment, Drilling Progress and Cost Charts, Permits, Drilling Program and Procedure
400
Draw an anticlinal trap that is gas cap driven. Lable the following: Gas cap, oil, water OGC, OWC, synclinal spill point and bottom water
Well, draw it.
400
Three factors have come together to make shale gas production economically viable. What are they?
Advances in horizontal drilling, advances in hydraulic fracturing, rapid increases in natural gas prices
400
What sector utilizes the most US produced natural gas?
Industrial
500
What is a green completion?
The water used to frack the well is removed. The natural gas that is produced with the water is then removed and placed in a pipeline rather than being released into the atmosphere
500
Sketch a realistic, desirable cumulative cashflow diagram and explain what is happening at the major points in the plot.
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500
Fill in what happens in the system for a water drive oil reservoir. Reservoir pressure- Reservoir production rate- Producing GOR- Water production- Well behavior-
Remains high, oil rate drops off slowly but total fluid rate remains high, remains low, starts early and increases continuously, flow until water reaches well.
500
Half of all natural gas consumed today is produced from wells drilled within the last ________ years
3.5
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