- Settore: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
- Company Profile:
A well-control fluid, typically a brine, that is used during workover operations. Since the wellbore is in contact with the reservoir during most workover operations, workover fluids should be clean and chemically compatible with the reservoir fluids and formation matrix.
Industry:Oil & gas
A wellbore tubular used to produce reservoir fluids. Production tubing is assembled with other completion components to make up the production string. The production tubing selected for any completion should be compatible with the wellbore geometry, reservoir production characteristics and the reservoir fluids.
Industry:Oil & gas
A wellbore tubular in which slots or holes have been made before the string is assembled and run into the wellbore. Perforated liners typically are used in small-diameter wellbores or in sidetracks within the reservoir where there is no need for the liner to be cemented in place, as is required for zonal isolation.
Industry:Oil & gas
A wellbore treatment in which a fluid laden with solid particles is used to remove deposits from the surface of wellbore tubulars and completion components. The treatment fluid is pumped at high pressure through a downhole tool equipped with nozzles that direct a jet, or jets, of fluid onto the target area. Most tool designs use a controlled rotary motion to ensure complete circumferential treatment of internal surfaces. Abrasive jetting techniques can also be used to cut completion or wellbore components. For this application, highly abrasive particles, such as sand, are carried in a fluid and jetted at the target area over an extended period to erode the tubular.
Industry:Oil & gas
A wellbore completed in two or more reservoir zones that are not in hydraulic communication in the reservoir. Backflow (often incorrectly referred to as crossflow) is common during rate cutbacks and buildup tests on these types of completions. Analysis of buildup data acquired from a commingled completion can be difficult or impossible.
Industry:Oil & gas
A wellbore acid treatment designed to remove scale or similar deposits from perforations and well-completion components. Acid-wash treatments generally do not include injection of treatment fluid into the reservoir formation.
Industry:Oil & gas
A well, often a depleted oil or gas well, into which waste fluids can be injected for safe disposal. Disposal wells typically are subject to regulatory requirements to avoid the contamination of freshwater aquifers.
Industry:Oil & gas
A well with a valve closed to halt production. Wells are often closed in for a period of time to allow stabilization prior to beginning a drawdown-buildup test sequence.
Industry:Oil & gas
A well that, for reasons of depletion or natural low productivity, is nearing the limits of viable production and profitability.
Industry:Oil & gas
