There are several methods for patching damaged casing while maintaining pressure ratings and without restricting internal bore diameters. The casing repair is made by removing the damaged section of the casing and then preparing the casing stub with a Dress-Off Mill. The external patch is run in the hole on the bottom of the new …
What Is Coiled Tubing? Coiled tubing (CT) is a continuous length of small-diameter steel pipe stored on a reel and used for well intervention, workover, completion, and drilling operations. Unlike conventional jointed tubing or drill pipe, coiled tubing can be continuously run into and pulled out of a well without making or breaking pipe connections. …
At times, you will need to mill out collapsed casing and repair the casing using a casing alignment tool. You can also use a string mill and casing alignment tool to repair split casing. Bottom Hole Assembly The bottom hole assembly should contain, from bottom to top (connecting to drill collars): See the diagram below. …
A casing swage tool will typically repair the casing & restore collapsed casing to its original ID. Swages are also used to make gauge runs to ensure the casing size (ID) is clear. Tool Description Swages are made of 4140-grade heat-treated steel. The tool is shaped like an ice cream cone. The long tapered nose …
Use a casing roller when the casing is slightly collapsed. Casing rollers are light-duty tools. We recommend for you this article to read: Tool Description The CASING ROLLER is specifically designed for repairing casing and differs from any other repair tool intended for this application in that it does not include any small parts to …
As we discussed previously, coiled tubing gains wide popularity, especially in workover operations due to its lower cost and wide applications. In this article, we shall provide Halliburton, Schlumberger, NOV, and Baker Hughes handbooks & manuals PDF to assist engineers and operators to understand more about coiled tubing equipment and operations. We think you might …
Drilling rig components are the mechanical, electrical, hydraulic, and well-control equipment used to drill, re-enter, and work over wells. The main systems include hoisting and rotation, power generation, mud circulation, and well control. This illustrated glossary identifies the principal rig equipment, explains each component’s function, and provides diagrams and a downloadable reference PDF. Drilling Rig …
The term “coiled tubing” means a set of durable CT strings (CGT), a complex of surface equipment, consisting of the coiled tubing unit itself (providing tripping of the CT string – Tripping pipe procedures), and a complex of equipment, including a mud pump, compressors for injecting inert gas or a booster unit, a generator inert …
This Topic provides information on Coiled Tubing Pressure Control Equipment (surface ) commonly used to maintain the integrity of the well during CT operations (BOP) including Quad, and Combi types. Coiled tubing well control equipment is designed to allow safe well intervention services to be performed under pressure. However, well pressure should be kept to …
The Power Pack or Power Unit supplies hydraulic power to the coiled tubing equipment unit. Most conventional units use a diesel engine (examples are Scania DN14 and Detroit 8V71 engines) to power hydraulic pumps, which in turn drive the hydraulic motors in the injector head, tubing reel, and well control systems. The engine is independent …