Casing Tallies Versus Liner Tallies There are two different types of tubular tallies: 1) a casing tally spreadsheet and 2) a casing liner tally. A casing tally works from a fixed point at the wellhead (e.g. hanger landing point) and the formulae in the spreadsheet calculate the shoe depth by adding the length of each …
Pipe Washout in oil and gas is a sudden problem that may happen during any stage of drilling the well and may cause a parting of the string and the following fishing in drilling operations that will increase well time and cost. Drill Pipe Washouts Causes & Precautions As with all downhole problems, prevention is …
Casing repair is not exactly a drilling fishing job, but if the casing collapses, splits, or parts you’re fishing skills can help you repair the casing. Casing repair involves using a variety of tools downhole. Each casing failure must be evaluated based on the specific conditions of the failure before a method of repair can …
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 …
Coiled Tubing (CT) is a continuous length of small-diameter pipe that is spooled onto a reel in the same way as wire or cable is wrapped on a drum. The coiled tubing operation permits the technique of “snubbing” a continuous length of tubing in and out of a live well through a stripper BOP arrangement. …
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 …
Before going in deep into its components, we can define the Drilling rig as a complex of equipment and tools that is used in: Drilling Rig Equipment Systems Components There are 4 main systems on a drilling rig: HOISTING & ROTATION SYSTEM COMPONENTS IN DRILLING RIGS POWER GENERATION SYSTEM Ac-Dc Power Generation Station Example: MUD …