دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: pipe coated at the mill as opposed to pipe coated over the ditch in pipeline construction.

n: (MSHA) a US government agency that evaluates research in the causes of occupational diseases and accidents. It is responsible for administration of the certification of respiratory safety equipment. Address: 4015 Wilson Blvd.;Arlington, VA 22203;(703) 235-1385.

n: (MMS) an agency of the US Department of the Interior that establishes requirements through the Code of Federal Regulations (CFR) for drilling while operating on the Outer ContinentaI Shelf of the United States. The agency regulates rig design and construction, drilling procedures, equipment, qualification of personnel, and pollution prevention. Address: 1849 C Street NW;Washington, DC 20240;(202) 208-3500.

MMS, a US government agency that oversees minerals production from US federal lands.

n: a royalty payment amount to be made regardless of the rate of production. The excess of such payments over regular royalty is chargeable against future production, if any, accruing to the royalty interest.

n: a method of enhanced recovery in which various hydrocarbon solvents or gases (such as propane, LPG, natural gas, carbon dioxide, or a mixture thereof) are injected into the reservoir to reduce interfacial forces between oil and water in the pore channels and thus displace oil from the reservoir rock. See chemical flooding. gas injection. micellar-polymer flooding.

n: (MOPU) a movable, reusable structure, such as a converted jack- up drilling rig, from which offshore wells are produced. The main advantage over a conventional fixed or compliant platform is that MOPUs are less expensive.

n: the ratio of the mobility of a driving fluid (water or a chemical solution at residual oil saturation to the mobility of the driven fluid (oil) at connate water saturation. The mobility ratio affects the sweep efficiency of an improved recovery project.

a comparison of the ability of a fluid to move through another fluid or to displace the fluid.

n: workover equipment designed in equipment packages or modules that are light enough to be lifted onto an offshore platform by a platform crane. In most cases, the maximum weight of a module is 12,000 pounds (5,443 kilograms). Once lifted from the work boat, the rig can be erected and working within twenty-four to thirty-six hours.

n: the ratio of the increment of some specified form of stress to the increment of some specified form of strain, such as bulk modulus, shear modulus, or Youngs modulus. Also called coefficient of elasticity. elasticity modulus, elastic modulus.

stress over strain. A measure of stiffness or Young’s Modulus (E). Rocks are ½ to 12 x 106 psi and mild steel is 30 x 106 psi. Modulus refers to stress at a predetermined level of elongation, usually at 100% elongation. The higher the modulus of a compoun

n pi: synthetic zeolites packaged in bead or pellet form for (I) use in recovering contaminants or impurities from liquid and vapour product streams by selective adsorption and (2) use as a catalyst.