The Oil and Gas Sector is usually divided into three main segments: 1.Upstream (Exploration & Production)This stage focuses on finding and extracting oil and gas from underground reservoirs.Main activitiesGeological surveysDrilling wellsOil and gas extractionExample companiesExxonMobilSchlumbergerONGC 2.Midstream (Transportation & Storage)This stage deals with transporting crude oil and natural gas from production sites to refineries.Main activitiesPipelinesOil tankersStorage […]

Oil and gas extraction involves finding reserves, drilling wells, casing them with steel and cement, and then using natural pressure, pumps, or enhanced recovery (like fracking or gas/chemical injection) to bring the oil and gas to the surface, separating them, and transporting them for processing, a process covered by the “upstream” sector. This video provides a […]

When Hydrogen sulfide is detected at surface during drilling, the operation enters a controlled sour-environment mode where technical discipline becomes critical. Surface detection usually means the drilled formation contains sour fluids or gas, and the circulating mud system is transporting dissolved or free H₂S to surface through the annulus. As pressure drops across the flow […]

Oil shale and shale oil extraction represent one of the most important technological developments in modern petroleum engineering. Unlike conventional reservoirs, where hydrocarbons migrate into porous and permeable formations such as sandstone or carbonate, shale formations contain oil trapped within extremely fine-grained sedimentary rock with very low permeability. Because of this, oil cannot flow naturally […]

600 lb Drill Pipe Slip from Pneumatic Crane A serious dropped object incident occurred during drilling operations when a 600-pound drill pipe slipped from the pneumatic crane during handling. This type of event reminds us that in oilfield operations, lifting activities remain one of the highest-risk tasks on the rig floor. Key possible contributing factors:-Improper […]

Wireline logs and core samples are incredibly valuable, but they only give us a static picture of the rock right next to the wellbore. If we want to know how the entire reservoir will actually perform, we have to open the valve. Definition: Well Testing is the process of temporarily flowing a well under highly […]

A Critical Component in Well Testing Operations In well testing, pressure control and flow regulation are everything. One of the most critical pieces of surface equipment that makes this possible is the choke manifold. The choke manifold is designed to control flow rate, manage pressure, and ensure safe diversion of produced fluids during well testing […]