دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a tool composed of a mandrel on which are mounted several heavy-duty rollers with eccentric roll surfaces. It is used to restore buckled, collapsed, or dented casing in a well to normal diameter and roundness. Made up on tubing or drill pipe and run into the well to the depth of the deformed casing, the tool is rotated slowly, allowing the rollers to contact all sides of the casing and restore it to roughly its original condition.

n: The tool for repairing and maintaining casing. Consisted by arbor and a set of bias gyro wheel.

a downhole tool, commonly run on pipe to try to reform the casing after a partial collapse.

n: a kind steel product which is reformed especially and made into wire line with high intensity

n: a process in the manufacture of wire rope that crimps the strands, giving the rope a permanent set and controlling its flexibility.

n: the gas produced from certain petroleum refinery operations (such as cracking or reforming). The composition of refinery gas varies in accordance with the process by which it is produced, but it consists essentially of the same paraffin hydrocarbons as natural gas plus olefins (propylene, ootylene, and ethylene) not found in natural gas.

v: to rewrite a contract, guided by principles of equity. Parties who believe, for example, that the written form of an oil and gas lease does not express what was in fact intended or agreed on may sue in hope that the court will agree with them and reform the lease to express the intended facts or circumstances.

n: a cracking process in which low-octane naphthas or gasolines are converted into high-octane products. Thermal reforming is carried out at high temperatures and pressures (932.-1,040.F, 500.- 560�C, 250 to i,OOO pounds per square inch-i.7 megapascals). Catalytic reforming is carried out at lower temperatures (850.-950.F, 454 .-510.C) and much lower pressures. Reforming is usually a once- through process.