Sentences with phrase «decline curve»
A "decline curve" refers to a graph or mathematical model that shows the decrease in production or performance of something over time. It helps to understand the rate at which something declines, such as the output of a well, the effectiveness of a medicine, or the sales of a product. Full definition
I would imagine different authors have different decline curves.
advancedfictionwriting.com
This is likely some inverse exponential decline curve.
Publication date: 1992-07-01 First published in: Journal of Petroleum Science and Engineering Authors: B.J. Ayeni, R. Pilat Abstract: The oil industry has used decline curve analysis with limited success in estimating crude oil reserves and in predicting future behavior of oil and gas wells.
As Bryce points out, shale natural gas wells deplete at a very fast rate: «The new shale gas wells... have steep decline curves, meaning that output from some wells may fall by 80 to 90 percent during the first year of production.»
Using two parameters — a well's interference time and the original gas in place — the researchers were able to determine the universal decline curve and extrapolate total gas production over time.
(Note upper middle and lower curves in the second image link above) Does a higher first week raise up the whole decline curve due to increased buzz?
You, zebra, seem to be wanting to take this a step further and say the differential between the two decline curves eans reducing population is the primary way to reducing consumption.
Certainly the long term viability of natural gas will be a function of price as well as decline curves, and it certainly isn't a real resource at $ 2.31 / Mcf (today's price).
Amazon's deal to sell Kindle e-readers at UK bookseller Waterstones isn't just a curio particular to the e-book market in England or a point in the long, declining curve of traditional bricks - and - mortar bookstores.
The body's absorption rate for retinol is going to follow an exponential decline curve; since it is going to be proportional to remaining storage.
Mentored students in presentation skills, technical writing and project planning skills in production engineering relating to Nodal analysis, artificial lift methods, material balance and decline curve analysis.
They describe their new model of the decline curve in the paper «Gas production in the Barnett Shale obeys a simple scaling theory,» published this week in the Proceedings of the National Academy of Sciences.
Using historical data from horizontal wells in the Barnett Shale formation in North Texas, Tad Patzek, professor and chair in the Department of Petroleum and Geosystems Engineering in the Cockrell School of Engineering; Michael Marder, professor of physics in the College of Natural Sciences; and Frank Male, a graduate student in physics, used a simple physics theory to model the rate at which production from the wells declines over time, known as the «decline curve.»
I come from the oil and gas business, and the decline of my spouses book pub'd only on Amazon showed a decline curve remarkably like those of «depletion drive» reservoirs.
Hi Walt: Good points on the decline curves.
I plotted the actual sales numbers up and it did very much resemble the decline curve.
This is compounded by the decline curves typical of many large hydrocarbon projects.
The further down the decline curve a business goes, the fewer are options it has.