Oil well cementing chemical

Oil well cementing is an important process of drilling and completion operation. The cement slurry is placed between the casing and the drilled formation for adequate zonal isolation for the lifetime of the well. Cementing operation is generally classified into two categories as primary cementing and remedial cementing. Primary cementing is carried out immediately after drilling a section of a wellbore to hold casing and to isolate the formation from the wellbore.

The design of primary cement slurry must be done with at most care as the lifetime of the well is primarily determined by the quality of primary cementing. Additives for this process should be selected based on several factors such as the well profile, temperature, pressure, acid-gas, etc. The designed cement slurry is pumped down and placed between casing and the geological formation. The set time is determined by the type of retarder and accelerator added in the slurry. The primary objective of having the primary cementing is to provide support and bond casing, zonal isolation to prevent fluid migration between formations, protect casing from corrosive environment, to act as a seal and a barrier to hold formation pressure and to provide protection for casing from drilling operations such as shock loads. Casing points and cementing stages are usually included in the well design itself.

RF-9606 is polymer water dispersion made from butadiene, styrene and unsaturated carboxylic acid by emulsion polymerization. High chemical stability, good compatibility with cement paste, good adhesion between oil and water runny interface. After hydration, latex cement slurry can form a dense and impermeable system to effectively control water loss. It can improve the elasticity and compression strength of cement and effectively reduce the rupture degree of cement surface during perforation. It can improve the resistance of cement to fluid corrosion and improve the durability of cement.

For more details, please contact:

Young Yao

Marketing development manager

Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)

Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018

Phone: +86 (572) 2903236

Fax: +86 (572) 2905222

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Website: www.ruicoglobal.com

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