How To Seal Using Cementing Plugs?

The Cementing Plugs we offer are available in several rubber compounds to suit your application. We make sure that each rubber is compounded to the exact standard and therefore, these are designed to provide positive wiping action. Specially designed oil well cement is required for oil and gas well construction since it is subject to high temperatures and pressures.

Sealing with Cement:

Cement is pumped down the casing pipe, using a bottom plug, cement slurry, a top plug and drill mud. The pressure from drill mud moves the cement slurry through the casing, filling the space between outside the casing and the hole. The cement is given time to harden and is tested for hardness, alignment and a proper seal.

The work starts with the oil drilling process by drilling a surface hole where the oil trap is located. Casing is a large steel pipe which lines the hole and supports the walls of the well. Once the crew has drilled to a pre-set depth, casing must be placed into the hole to prevent it from collapsing. After the casing is run into the well, a cementing head is hooked to the top of the wellhead to receive the slurries from the pumps.

 

Cementing Plugs are supplied with molded phenolic cores as standard, but machined aluminum cores are available as an option, consult the factory for pricing and delivery. Oil well cement is also known as Class G Cement and has an excellent retarder response which translates to a higher economic benefit in the mix design.

Cementing is used in various applications as it primarily protects and seals the wellbore. It works great when it comes to prevent water penetration into the well and immobilising the casing. Cementing can also be used to seal areas where there is a reduction of flow within a well, and can extend to plugging a well for abandonment.
 

 

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