نمایش نتیجه 13121 تا 13130 از 14709 نتیجه یافت شده برای P:
a consideration in fluid friction calculations. A pipe with a polished surface may have 1/10th the friction and flow 10 to 25% more fluid at the same pressure drop (depending on pipe diameter),than a pipe with a corroded or heavily fouled surface.
n: a valve, mounted in the Christmas tree assembly, that stops the flow of fluids from the well if damage occurs to the assembly.
n: a sample taken at the surface of a liquid in a tank.
n: a blowout preventer stack mounted on top of the casing string at or near the surface of the ground or the water. Surface stacks are employed on land rigs and on bottom-supported MODUs.
n: A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations for several reasons. First, the surface casing protects fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus en
n: the tendency of liquids to maintain as small a surface as possible. It is caused by the cohesive attraction between the molecules of liquid.
n: Surface free energy that exists between a liquid and air. Surface tension can be observed as a curved meniscus in a small tube of the liquid. This energy barrier prevents a liquid (such as water) from spontaneously mixing with air to form a foam. To make
a measurement of the difficulty of moving a fluid past another fluid (see interfacial tension). The resistance is created by the cohesion forces between the liquid molecules. The forces make it more difficult to pass fluids past a surface. Surface tension
n: in surface well testing, a temporary set of valves installed for flow control on a wellhead with no Christmas tree.
n: waste incurred by line leaks, seepage, inexpedient storage, and so forth. Such waste is usually regulated by federal or state agencies.
n pI: the oceans, rivers, streams, lakes, ponds, water holes, mud flats, prairie potholes, bogs, and swamps of the United States.
n: wave that propagates along the earths surface, e.g., the Love, Rayleigh, hydrodynamic, or coupled waves.
