دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a continuous string of flexible steel tubing, often hundreds or thousands of feet long, that is wound onto a reel, often dozens of feet in diameter. The reel is an integral part of the coiled tubing unit, which consists of several devices that ensure the tubing can be safely and efficiently inserted into the well from the surface. Because tubing can be lowered into a well without having to make up joints of tubing, running coiled tubing into the well is faster and less expensive than running conventional tubing. Rapid advances in the use of coiled tubing make it a popular way in which to run tubing into and out of a well. Also called reeled tubing.

n: (1)A long, continuous length of pipe wound on a spool. The pipe is straightened prior to pushing into a wellbore, and is recoiled to spool the pipe back onto the transport and storage spool. (2)A generic term relating to the use of a coiled tubing techniq

a continuous reeled tube from 1” diameter to >3.5” diameter. The tubing is injected into a well via a coiled tubing unit (CTU) and can be used to unload wells with liquid, foams or gasses, logging, fracturing, etc.

n: the ability of the wall of a pipe or vessel to resist collapse.

n: See collapsing strength.

an explosive charge in a tool designed to sever very heavy BHA tools such as drill string collars and stabilizers. It latterly uses a focused explosive to blown the string apart. A tool of last resort.

adj: pertaining to a colloid. i.e., involving particles so minute (less than 2 microns) that they are not visible through optical microscopes. Bentonite is an example of a colloidal clay.

n: A kind of method measuring pH value of drilling fluid or filtrate.

n: a visual test made against fixed standards to determine the colour of a petroleum or other type of product.

a single assembly of various logging tools.

n: a casing string with joints of various collapse resistance, internal yield strength, and tensile strength, designed for various depths in a specific well to best withstand the conditions of that well. In deep wens, high tensile strength is required in the top casing joints to carry the load, whereas high collapse resistance and internal yield strength are needed in the bottom joints. In the middle of the casing, average quality is usually sufficient. The most suitable combination of types and weights of pipe helps to ensure efficient production at a minimum cost.

n: A casing string made up of various different grades or weights of casing (sometimes referred to as a tapered string).

n: The cyclone casing guide shoe with unidirectional float valve.

a common way of working that generates and/or protects value, sets out baseline expectations, to materially impact performance, is enduring and globally consistent, and helps advance the capacity of the global organization.