Planning & calculating a horizontal wellbore differs from planning normal directional drilling wells for oil and gas. In a typical directional wellbore, the target is usually described as a departure at a certain TVD. The target has tolerances in the horizontal plane (North and East). In a horizontal well, the target is commonly described by …
The term bentonite in drilling mud fluids was derived from the location of the first commercial deposit in the United States. In 1897, Knight reported that since 1888 William Taylor of Rock Creek, Wyoming, had been selling a “peculiar clay” found in the Fort Benton shale of Cretaceous age. Knight proposed the name “taylorite.” On …
Drill pipe or Drill collars can be unscrewed downhole by exploding a charge known as a string-shot (prima-cord folded up inside a piece of tubular plastic) inside a selected tool joint connection, just above the stuck pipe point ( check also free point calculation for stuck pipe), this operation can be described as mechanical drilling …
Baroid IDP company is one of Halliburton’s oil and gas Companies, which specializes in providing drilling mud products & services. In addition, Halliburton Baroid industrial drilling fluid products are considered to be the top list of mud chemicals in the oilfield market. Our article will cover their Baroid products and download their datasheets, manual, handbook …
In California, barite was first used in a well being redrilled with cable tools in 1923. According to the report, the density of the mud was raised to 90 lb/ft3 (1.44 g/cm3 ) to control the gas inflow and to stop caving. Here in this article, we will discuss the major knowledge that drilling engineers …
Baker Hughes is one of the leading service companies that are working in the oilfield. They are offering many services including manufacturing and supplying oilfield drilling bits. Here in this article, we shall introduce to you two versions of Baker Hughes Christensen Drill Bits Spec Sheets & Catalog PDF to download. We also have gathered …
Cement Design & Programming for primary cementing operations of any type of casings / Casing liner requires the following input: Although there are several placement techniques that can be used in primary cementing (Cementing in drilling), they have a number of features in common. Therefore and for the sake of simplicity, we discuss the most …
ECD / Equivalent Circulating Density is an important parameter to monitor in the drilling process of a well, especially in horizontal & HPHT wells. In this article, our objective is as follows: ECD Definition, the calculations & formula of theoretical ECD in Drilling & to explain the parameters that influence ECD. You can also download …
High-pressure mud pumps are positive displacement pumps. Simply, they convert mechanical power into hydraulic power. Their mechanical components (power ends) are usually maintained by mechanics. However, the drilling crew maintains the pump’s hydraulic part (fluid end). As they are a critical part of the drilling rig equipment, it is mandatory that the drilling engineer should …
There are a lot of Water Based Drilling Fluid systems that are used in drilling oil and gas wells. In this article we will talk about the following fluid systems: Spud Mud Spud mud is a simple Bentonite (Gel) mud system that is used when spudding a well to drill the top-hole section. Surface formations …