The drawworks is a large winch located on the drill floor of a rig. It is used to raise and lower the drill string and other equipment into and out of the wellbore. Main Components: Functions:Hoisting and lowering the drill string, casing, and bottom hole assembly.Controlling weight on bit (WOB) during drilling.Working with the traveling […]

Is the process of removing crude oil from underground reservoirs so it can be refined and used. It involves several steps, technologies, and equipment, typically grouped into two main phases: primary extraction and secondary/tertiary recovery. Mechanisms include:Solution gas drive: Gas dissolved in oil expands and pushes oil up.Gas cap drive: Gas in a cap above […]

During the running in hole, we encountered a severely damaged pipe — visually confirmed as rotten, with significant structural degradation. Given the condition and to minimize risk of further breakage or fish becoming unrecoverable, we opted for the following recovery approach: Recommended Action:Tool Selection: If casing ID permits, deploy a TDog Overshot equipped with sufficient […]

Involves retrieving a stuck, broken, or left-behind ESP power cable from the wellbore. This is a delicate operation requiring planning and specialized tools due to the cable’s fragility and its often complex placement around tubing or other completion equipment. Here’s a step-by-step process to approach it:

Purpose:Mud pumps circulate drilling fluid (mud) down the drill string and back up the annulus. Regular cleaning is essential to prevent blockages, corrosion, and premature wear. Steps for Cleaning:Shut down the pump and isolate it from the system.Drain all residual mud from the pump casing and fluid end using drain valves.Flush with clean water or […]

Nitrogen pumping is a crucial service in the oil and gas industry, used to support a variety of wellsite operations. Nitrogen (N₂), being an inert, non-flammable, and non-corrosive gas, makes it highly suitable for environments where safety and chemical stability are paramount. Key Applications of Nitrogen Pumping Process OverviewLiquid nitrogen is transported to the wellsite […]

Jarring is a drilling operation technique used to deliver an impact force downhole to free stuck drilling tools or pipe. This technique involves a drilling jar, which is a mechanical or hydraulic tool placed in the drill string. Purpose of Jarring Types of Jarring Tools: Jarring MechanismThe jar is placed above the stuck point in […]

Coiled Tubing is a continuous length of small-diameter steel pipe, typically ranging from 1 inch to 3.25 inches in diameter, wound on a large spool. It can be inserted into a wellbore without having to remove the existing tubing, allowing for live well interventions. Key Features of Coiled Tubing Operations Common Applications: Advantages:Reduced well downtimeCost-effective […]

Operations involves preparing and deploying specialized seismic tools in a well to collect high-resolution seismic data. This process is critical in geophysical exploration and reservoir characterization. Here’s a step-by-step discussion of the logging tool rig-up for a VSP run: Pre-Job Planning and Safety ChecksJob planning: Coordinate with geophysicists, logging engineers, and drilling personnel.Tool string design: […]