- 産業: Education; Oil & gas
- Number of terms: 4495
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The Petroleum Extension Service (PETEX) is a unit of the Division of Continuing Education at The University of Texas at Austin and has been training companies and individuals since 1944.
A slurry of cement and water and sometimes one or more additives that affect either the density of the mixture or its setting time. The cement used may be high early strength, common (standard), or slow setting. Additives include accelerators (such as calcium chloride), retarders (such as gypsum), weighting materials (such as barium sulfate), lightweight additives (such as bentonite), or a variety of lost circulation materials.
Industry:Oil & gas
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.
Industry:Oil & gas
A high-pressure pump used to force cement down the casing and into the annular space between the casing and the wall of the borehole.
Industry:Oil & gas
The force exerted by fluids or gas in a formation, recorded in the hole at the level of the formation with the well shut in. Also called reservoir pressure or shut-in bottomhole pressure.
Industry:Oil & gas
The gathering of pressure data and fluid samples from a formation to determine its production potential before choosing a completion method.
Industry:Oil & gas
Any tank or vessel used to mix components of a substance (as in the mixing of additives with drilling mud).
Industry:Oil & gas
A substance added to reservoir fluids to permit the movements of the fluid to be followed or traced. Dyes and radioactive substances are used as tracers in underground water flows and sometimes helium is used in gas. When samples of the water or gas taken some distance from the point of injection reveal signs of the tracer, the route of the fluids can be mapped.
Industry:Oil & gas
1. the water originally in place in a formation. 2. any water that resides in the pore spaces of a formation.
Industry:Oil & gas
