Many inorganic salts are accelerators of Portland cement Slurry. Chloride salts are used most frequently. Other salts that have an accelerating effect include carbonates, silicates (especially sodium silicate), aluminates, nitrates, sulfates, thiosulfates, and alkaline bases [e.g., sodium hydroxide (NaOH), potassium hydroxide (KOH), and ammonium hydroxide (NH4OH)]. Ca2+ > Mg2+ > Li+ > Na+ > H2O OH– …
A cement bond log (CBL) measures the amplitude or attenuation of waves propagating axially along with a casing. The attenuation of the wave depends upon the materials on both sides of the casing: mud inside the casing and cement in the annular space. The effect is more pronounced on the casing-cement interface than on the …
This Driller job description article defines and regulates the powers, functional and official duties, rights, and responsibilities of the driller of production and exploration oil and gas wells to help build a resume. We suggest this topic for you: oil rig life. Driller Job General Responsibilities The driller is mainly responsible for the following: The …
The principal advantage of hydraulic set liner assemblies is that no rotation of the liner assembly is necessary to set the slips. The activation of the setting mechanism in a hydraulic-set liner hanger assembly is by creating a sufficient differential pressure to initiate the setting sequence. Normally, differential pressure is created by applying pressure down …
It is a structured process for collecting independent information on the effectiveness, reliability, and efficiency of all systems on a rig, as well as developing plans to correct any deficiencies found. A rig audit, acceptance, or commissioning identifies critical control points that must be managed to ensure a successful outcome from the drilling unit components. …
In a mechanical set liner hanger assembly, the setting mechanism is incorporated into the design of the liner hanger system, and its activation can be by reciprocation and rotation of the drill string at the surface. In most cases, the entire length of the casing liner below the hanger must be free to move to …
What Is Liner Hanger System? As we mention in the Casing Liner article, a Liner is a casing string that does not reach the surface. We can use liner hanger system assembly to support & hinge the casing liner on the previous casing string in oil and gas drilling wells. ( Check Types Of Casing …
What Is Casing Liner? A liners Casing used in drilling and completion is one of the Types of Casing or tubing string of varying length which is set with its top below the surface of the well. Liners can be cemented in place, and may include perforated pipe or well screen. We think that you …
The well Abandonment process is a necessary operation on oil & gas wells in certain circumstances, such as dry wells and wells, which will be completed later. In this article, we shall explain the standard procedures for doing well plugging and abandonment in oil and gas wells. Note : This procedures are to be a …
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