We define annular pressure loss or APL as the pressure lost while circulating drilling mud in the annulus. This loss is mainly due to frictional forces between the mud, borehole wall, and drill string. What Is The Pressure Loss? Pressure is required to circulate mud around a wellbore. This pressure is necessary to overcome the …
If you’re involved in drilling operations, you know how important it is to understand the concept of “bottom hole pressure.” This term is critical for drilling supervisors, drillers, drilling engineers, and all rig personnel, as it directly impacts well control. In fact, if the BHP drops below the formation pressure, it can cause a kick …
In the drilling industry, the rate of penetration (ROP), also known as penetration rate or drill rate, is the speed at which a drilling bit breaks the rock under it to deepen the borehole. It is generally measured in feet per minute or meters per hour. Generally, ROP increases in fast-drilling formations such as sandstone …
During drilling and workover operations, the consequences of leaks with sour gas or crude may be devastating. Drilling H2S-bearing formations poses one of the most challenging and dangerous problems to humans and equipment. Personnel can be injured or even killed by relatively low concentrations of H2S in a very short period. Equipment can experience terrible …
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 …
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 …
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 …
The major application of this drilling rig type is for development drilling from platforms (platforms rigs). Only the rig derrick set, including brake cooling, BOP accumulator, and drilling fluid treatment skid, are mounted on the platform. Then, we can install all other equipment on the drilling tender. The drilling tender is usually a barge-shaped structure …
The role of a drilling supervisor is crucial in ensuring the efficient execution of drilling activities in the oil and gas rigs. As a supervisor, they oversee the daily drilling activities, manage the drilling rig crew, and coordinate with drilling contractors and service providers. They are also responsible for ensuring the safety of the drilling …
What is a Drilling Rig Floorhand? A drilling floorhand job is essential in the oil and gas rig industry. This entry-level position is a crucial part of a drilling crew, responsible for assisting in drilling equipment operations and maintenance on the rig floor. The floorhand duties & job description include performing various manual labor tasks …
