Inner string or stinger cementing is a technique typically used with large-diameter casings in which drill pipe is placed inside the casing as the conduit for pumping fluids from the surface to the casing annulus (Fig. 1). The inner strings can be run in one of three ways that will be discussed later in this …
Guide shoe and float shoe in drilling are tapered, a commonly bullet-nosed device that is installed at the bottom of any types of casing string. They guide the casing toward the center of the hole to minimize hitting rock ledges or washouts as the casing is run into the well. The outer portions of these …
Always Be Prepared for Complications & Problems During Well Control Operations Note: If a problem develops while killing a well, “NOTE and RECORD” the drill pipe and casing pressure, stop the pump, shut in the well, and then, evaluate the situation. Well-controlling pressure is provided by using the horsepower of the mud pumps and the …
Land Rig Move Planning New Location Preparation Rig Move Safety Meeting The Safety Meeting Should Be attended by all the crews, meeting should be done every morning of rig move and supervised by drilling supervisor, STP & Safety officer Responsibilities Onshore Rig Move Operations A network plan for the movement of the electrical rig is …
Bullheading is a technique that may be used in certain circumstances during drilling operations to pump an influx back into the formation. In other words, it is a term to denote pumping into a closed-in well without returns. A major concern with this technique is that it may result in fracturing any exposed formation. Bullheading …
We usually use a calibrated trip tank in drilling to measure mud volumes accurately and change mud volumes while tripping. It must be available on all rigs & must have a level indicator easily readable from the driller’s position. Such an indicator must be accurate to within one-half barrel volume. It is unsafe to trip …
Unexplained changes in the readings on the Flow Show and PVT recorders should be investigated promptly. This usually takes the form of a flow check. In other words, They are implemented to guarantee that the well is stable. it should be carried out with the mud pumps off to check the well with Drilling ECD …
This drilling fluid engineer, who is also called a mud engineer, works with any drilling mud (saline, biopolymer, oil-based mud, etc.), monitors compliance with drilling technology using drilling fluids, determines the need for chemical reagents, drilling mud components necessary to fulfill the customer’s planned tasks, controls their distribution and rational use. This article will discuss …
Before discussing drilling parameters, practices, and guidelines for drilling performance optimization, reviewing the basic concepts of Weight Indicator, Torque, and Limits is beneficial. Basic Concepts Of Drilling Parameters Optimization For Oil & Gas Wells Operations Weight Indicator The weight indicator, often referred to as the `Martin Decker‘, is the most essential instrument for the driller …
A float shoe and float collar are casing-cementing components that contain one-way valves to help stop cement or wellbore fluids flowing back into the casing after displacement. A float shoe sits at the casing bottom and guides it past borehole irregularities; a float collar is installed above the shoe and commonly supplies a landing seat …