A drill collar is an essential tool used in oil and gas rigs for drilling operations. It has many functions, including providing weight on the drilling bit for efficient drilling and stability during operation. Understanding the importance of drill collars and how they work is vital for successful drilling operations. In this article, we will …
Heavy weight drill pipe (HWDP) specs are important to understand as they are the entrance to the heavy-weight drill pipe design & selection. This article will discuss its definition, uses, and advantages. Furthermore, we provided specification tables that will greatly assist in selecting the drill string design. In addition to that, you can also download …
The non-magnetic drill collar is made from specially treated steel alloys so that it does not affect magnetic surveying instruments. They aim to isolate directional survey instruments from magnetic distortion due to the steel drill string. Non Magnetic Drill Collar Function The magnetic survey instrument is influenced by the presence of a magnetic field around …
API Drill Pipe Specifications (specs) are generally described as six items. For example, a 5″ drill pipe is 5″, #19.5, E, XH, NC50, Premium. Now let’s understand what are the main items that describe any DP : 5” 19.5 Grade ”E” XH NC50 Premium tube OD Nominal Weight Minimum Yield strength Upset Tool Joint Connection …
Generally, the drilling bottom hole assembly (BHA) is one of the components of the Drilling String, which is below the Drill Pipes. The most common components of the BHA are drill collars, stabilizers, shock Absorbers, jars, reamers, heavy-weight drill pipes, and the drilling bit. The Bottom Hole Assembly BHA aims to drill a usable hole …
Drilling jars are one of the BHA components that should be run with the drill string to help free stuck pipes. There are two common types of drilling jars: hydraulic and mechanical. Hydraulic jars use the pressure the string generates to apply an impact load. In contrast, the mechanical type uses a spring-loaded design to create an impact load. This …
A shock absorber sub or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses while drilling. It does this by converting the kinetic energy of the shock into another form of energy (typically heat), which is then dissipated. Most shock absorber subs are a form of dashpot (a damper that …
Roller reamers are a unique tool used in drilling through tough rock formations. They’re designed to stabilize the drilling process and create a smooth, round hole. Rolling reamers have a very small contact area with the rock unlike other reaming tools. But don’t let their small size fool you. They’re actually the most effective tool …
Drilling string stabilizer types & design is the main subject of this article. First, we will introduce to you the definition of a stabilizer. Then, we will move to the stabilizer application. Finally, we will talk about its types. This article is a part of the series explaining Bottom Hole Assembly Components, Types & Mechanism. …