Stuck coiled tubing (CT) is one of the most common types of accidents that can result in the loss of a well. Although various methods exist to prevent such incidents, they are not always successful. When these methods fail, it becomes essential to safely cut the coiled tubing between the injector and the drum. The […]
Author: GOSCO Energy
Introduction to Directional Drilling
Coiled Tubing Quad BOP
BOP (Blowout Preventer), for coiled tubing operations is to provide a safety mechanism that controls and prevents uncontrolled releases of fluids or gas (blowouts) from the wellbore during operations. It ensures the safety of personnel, equipment, and the environment by: Well Control: The BOP is used to isolate the wellbore in the event of a […]
Slips In Drilling Rigs
Slips In Drilling Rigs device used to grip the drillstring in a relatively nondamaging manner and suspend it in the rotary table. This device consists of three or more steel wedges that are hinged together, forming a near circle around the drillpipe. On the drillpipe side (inside surface), the slips are fitted with replaceable, hardened […]
Rotary Steerable System
Connecting (drill bit) 10 5/8″, TXD514. BNA 10 5/8″ 514; INSTALLING NOZZLES 6(11/32″) and 2(14/32″), ATF: 0.850 PG2 to continue Drilling rotary steerable. A tool designed to drill directionally with continuous rotation from the surface, eliminating the need to slide a steerable motor. Rotary steerable systems typically are deployed when drilling directional, horizontal, or extended-reach […]
Oil-based Mud
Is a drilling fluid used in drilling engineering. It is composed of oil as the continuous phase and water as the dispersed phase in conjunction with emulsifiers, wetting agents and gellants. The oil base can be diesel, kerosene, fuel oil, selected crude oil or mineral oil. The requirements are a gravity of 36–37 API, a […]
What is Mousehole?
An opening in the rig floor near the rotary table, but between the rotary table and the vee-door, that enables rapid connections while drilling. The mousehole is usually fitted underneath with a length of casing, usually with a bottom. A joint of drillpipe that will be used next in the drilling operation is placed in […]
Liner Hanger Systems
Liner hangers and liner top packers to improve completion well construction design and operations As the name suggests, secures and supports the liner. It uses mechanical slips to grip the inside of the casing a pre-determined distance above the casing shoe. The space between the liner hanger and the casing shoe is called the liner […]
Casing While Drillng “CWD”
The concept of drilling and casing the hole in the same time is, of course, valuable by combining two time consuming processes. So the main purpose of Casing Drilling, or Casing while Drilling (CwD), is to eliminate classic casing runs and isolate formations while drilling. By using Standard casing string instead of conventional drill string, […]
Type of Casing and Their Advantages
Casing is a significant component of the oil and gas well drilling process. It is used to protect the wellbore from collapsing, to prevent fluid migration between rock formations, and to provide a stable platform for drilling. Casing is generally made of steel and is run into the wellbore and cemented in place. Different types […]