Oilfield Magnetic fishing tools consist of permanent or electric magnets running on a conductor line. The outer edge of permanent magnets has circulating ports, which wash away fill and cuttings and make contact with the fish. A brass sleeve is fitted between the magnetic core and the outer body to avoid any drag on the …
A drilling rig job requires a wide range of skills and knowledge. Common roles include rig supervisor, tool pushers, drilling engineers, drilling deck workers, mud engineers, drillers, and mechanics. Drillers are responsible for operating the rig types safely and efficiently and conducting maintenance on the equipment. Mud engineers oversee the mixing of fluids used in …
Drill string vibrations can significantly impact the performance of oil and gas drilling operations. They can lead to premature wear and tear of drilling equipment, resulting in fatigue and induced string failures such as drill pipe washout. Additionally, they decrease the drilling energy delivered to the bit. Therefore, it will cause a drop in the …
Safety joint can be used in drilling, fishing, drill stem testing, washover or any pipe string. It is a threaded connection with coarse threads or other special features that will cause it to unscrew before other connections in the string. It is one of the great tools that have been used in oil and gas …
We use the term ‘drilling toolface’ in connection with deflection tools or steerable motors and can express it in two ways. Physically, the place on a deflection tool, usually marked with a scribe line, is positioned to a particular orientation while drilling to determine the future course of the wellbore. Conceptually, “toolface” is a shortened …
Before approving a drilling program, the drilling team must perform estimation for the overall costs of the oil well drilling operations. Suppose there is no previous drilling data in a new area. In that case, the drilling team can only approximate the well cost roughly. In most cases, the drilling team can use available well …
A tool joint is a heavy coupling element for drill pipe. Tool joints have coarse, tapered threads and seating shoulders designed to: The tool joint is attached to the pipe by welding during the manufacture of the drill pipe joint (API drill pipe specifications). It has two parts, a pin and a box. Tool Joint …
We use several methods to create a hole from the wellbore through the casing and any cement sheath into the producing zone, such as shaped perforating charges, bullet guns, and abrasive jets. These methods are called perforating methods. Perforations create conduits into the reservoir that allow hydrocarbon recovery and influence it. Different perforating requirements are …
A hole opener is used when the successive hole sections could have been drilled using regular drilling bits but where, for one reason or another reason, a reduced diameter hole section Âknown as a pilot hole Âwas required at a particular depth. It is designed to fit onto the drill string and is commonly used …
The purpose of the marine drilling riser is to extend the offshore well from the top of the blow-out preventer package at the sea bed to the diverter beneath the rotary table. Thus, Drilling fluid returns are obtained, and tools can be easily guided into the well bore. Choosing the appropriate marine riser size based …