The liner hanger system is installed at the top of the casing liner (One of Types Of Casing). The function of the liner hanger is to hang and suspend the liner. There are mechanical liner hanger and hydraulic set hangers. In this article, we will provide detailed steps for Liner Hanger Setting & Cementing Procedures. …
Rotary Steerable System RSS represents an evolutionary step forward in directional drilling technology, overcoming the drawbacks of steerable motors and conventional rotary BHA types. In steerable motors, to initiate a change in the wellbore trajectory, halt the rotation in such a position that the bend in the motor points toward the new trajectory. This mode, …
A steerable downhole drilling mud motors system allows directional changes (azimuth and/or inclination) of the well without tripping pipe to change the Bottom hole Assembly BHA, hence its name. This article is one of the Directional Drilling guide articles I recommend visiting to understand other deflection tool mechanisms. It consists of a drill bit, a …
The most commonly used technique for changing the trajectory of the wellbore uses a piece of equipment known as a “bent sub,” which is used only in directional well drilling (Figure 1) with a Positive Displacement (mud) motor. What is The Bent Sub In Directional Drilling A bent sub (Drilling Subs) is a short length …
The trajectory of a deviated well must be carefully planned so that the most efficient trajectory is used to drill between the rig and the target location and ensure that the well is drilled for the least amount of money possible. Here we shall understand what is the Depth and Geographical Reference Systems When planning, …
This article describes in detail the correct procedures for two-stage cementing or multi-stage / multistage Primary cementing operations in oil and gas wells. Of course, these procedures come after the casing running operations and single stage casing cementing operations What Is Multistage / Multi Two Stage Cementing The overpressures from a primary cementing column in …
Take into your considerations: Installation Patterns (For Mechanical Cementing Aids) The selection of the proper installation pattern for mechanical cementing aids i.e. centralises, scratchers, turbolisers, etc. is essential to optimise casing running and cementing results. Cementing aids and their installation pattern are a function of operational conditions and cementing objectives. Because of these variable factors, …
Casing Check List Within a reasonable time prior to the beginning of the casing running operation, the Company Completion and Drilling Supervisor and the Drilling Contractor’s Tool pusher shall physically check the availability on the rig of all materials necessary to operations. Below we will provide you with the casing running checklist to help you …
Material Requirements The following materials shall be available on the rig upon arrival on location: If quick joint is to be used, the following equipment shall be available: During the installation of the drilling rig, the following operations shall be carried out: The Running Procedure If a quick joint system is used: If a welded …
The performance of a bit may be judged on the following criteria: Cost Per Feet Since the aim of bit selection is to achieve the lowest cost per foot of hole drilled the best method of assessing the bits’ performance is the last of the above. This method is applied by calculating the cost per …