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PVT Sampling

PVT is the abbreviation of Pressure, Volume, and Temperature. PVT Sampling is the process of collecting reservoir fluid samples for laboratory PVT analysis. The samples are collected at appropriate locations downhole or on the surface where the samples represent the system in the reservoir.

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P&A

P&A is a commonly used abbreviation of Plug & Abandon. It is the process of permanently abandoning a well by setting a set of abandonment plugs. Usually, when a well is drilled to the intended target depth and after evaluation if it is determined that the well will not be completed for production in near future, the well is abandoned. A set of cement and/or mechanical plugs are placed in the well to ensure complete isolation as per regulatory requirements. Every company has its own guidelines and policies for well abandonment. The type and number of plugs depend on the type of well and expected reservoir pressure, fluid, etc.

A well can be temporarily abandoned as well if it is planned to complete, produce or reenter in the future. Offshore, a Mud Line Suspension (MLS) system is installed to be able to tie back the well in the future once the platform is installed. A corrosion cap is also installed on the top of the well to protect tieback threads and to avoid any debris getting into the well. The Corrosion Cap can be removed and retrieved before tying back the well to the platform.

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PCP

PCP is an abbreviation of 'Progressive Cavity Pump'. This is used for artificially lifting a well where the reservoir does not have enough energy to flow naturally. PCP creates negative pressure forcing the fluid to move up. PCP has been found to be useful for extracting high-viscosity crude oil. PCPs do not perform well in deeper and deviated wells.

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Oil & Gas Well Completions

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There are several ways an oil & gas well can be completed. It’s important to know what different types of completions are and what are their pros & cons.

What are different types of completions?  https://www.drillopedia.com/completion-completion-types

Pros and Cons of Open Hole Completion  https://www.drillopedia.com/completion-pros-cons-oh-completion

Pros and Cons of Cased Hole Completion  https://www.drillopedia.com/completion-pros-cons-ch-completion

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