decline curve method
1Decline Curve — A method for estimating reserves and predicting production in oil reservoirs and oil fields. The decline curve shows how oil and gas production rates decrease over time. Most decline curves are based on exponential, hyperbolic or harmonic Arps… …
2Yield curve — This article is about yield curves as used in finance. For the term s use in physics, see Yield curve (physics). Not to be confused with Yield curve spread – see Z spread. The US dollar yield curve as of February 9, 2005. The curve has a typical… …
3Forgetting curve — A typical representation of the forgetting curve. The forgetting curve hypothesizes the decline of memory retention in time. A related concept is the strength of memory that refers to the durability that memory traces in the brain. The stronger… …
4Oil reserves — Proven Oil Reserves, as published by the CIA Factbook, 2009 The total estimated amount of oil in an oil reservoir, including both producible and non producible oil, is called oil in place. However, because of reservoir characteristics and… …
5Extragalactic distance scale — The extragalactic distance scale is a series of techniques used today by astronomers to determine the distance of cosmological bodies (beyond our own galaxy) not easily obtained with traditional methods. Some procedures utilize properties of… …
6History of algebra — Elementary algebra is the branch of mathematics that deals with solving for the operands of arithmetic equations. Modern or abstract algebra has its origins as an abstraction of elementary algebra. Historians know that the earliest mathematical… …
7Unemployment — World unemployment rates[1] as of January 2009[update] Unemployment (or …
8Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
9arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
10nature, philosophy of — Introduction the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology. In this… …
