- Branża: Oil & gas
- Number of terms: 8814
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A length of steel pipe, generally around 40 ft (13 m) long with a threaded connection at each end. Casing joints are assembled to form a casing string of the correct length and specification for the wellbore in which it is installed.
Industry:Oil & gas
A law stating that lithologies that conformably overlie one another must have accumulated in adjacent depositional environments. Exceptions occur where there are erosional breaks. This law allows for transformations from the vertical data to a horizontal set and is often used when a vertical sequence of facies has been identified and characterized (for example, with Markov chain analysis) to estimate the horizontal depositional pattern.
Industry:Oil & gas
A key component of the operational planning process that takes account of reasonably foreseeable events that may prevent completion of normal operations. The formal plans and procedures for any operation should include normal operating procedures, contingency plans and emergency responses.
Industry:Oil & gas
A laboratory instrument for investigating the characteristics of fluid flow in pipes and for studying the response of production logging instruments to this flow. The fluids are circulated continuously in a loop, passing through one main measurement section that can be placed at different deviations from vertical through horizontal. Fluid properties, holdups and velocities can all be varied. Flow loops are essential for the study of multiphase flow and the development of new production logging measurements.
Industry:Oil & gas
A laboratory device used to determine the thickening time of cement slurries under simulated downhole pressure and temperature conditions.
Industry:Oil & gas
A joint of tubing used in a workover or completion tubing string that serves as a position or depth indicator. In most cases, a marker joint is significantly shorter than other joints in the string so that it is easily noticeable on correlation logs or when retrieving a work string, such as on a snubbing or hydraulic workover unit.
Industry:Oil & gas
A hygroscopic solid such as silica gel, calcium chloride (CaCl<sub>2</sub>) or other materials used in dry-bed dehydrators to absorb water and water vapor from a gas stream.
Industry:Oil & gas
A hypothetical model characterizing strata, generally strata deposited in one or a related set of environments. Conceptual models usually incorporate rules about possible geometries and successions of facies that can be included in a geological scenario. These often provide limitations to the interpretation of a given reservoir. Conceptual models commonly incorporate sequence stratigraphic concepts such as facies tracts, unconformities, flooding surfaces, erosional surfaces and parasequences. Conceptual models are often used in conjunction with geostatistical and classical technologies for reservoir characterization.
Industry:Oil & gas
A joint of tubing or casing included in the string at a known position to provide a reference point for further operations. A short pup joint that registers clearly in a collar locator log is a common flag joint.
Industry:Oil & gas
A hygroscopic liquid used to remove water and water vapor from a gas stream. Some liquid desiccants are glycols (diethylene, triethylene and tetraethylene), which are substances that can be regenerated. Regeneration means that the water absorbed by these substances can be separated from them. Some liquid desiccants, such as methanol or ethylene, cannot be regenerated.
Industry:Oil & gas
