Chemical Additives for Oil Well Cementing

Chemical Additives for Oil Well Cementing

Cementing is an extremely important operation in oil well drilling to ensure the integrity of the well, prevent gas and oil migration for an extended period of time. Failure to have adequate cementing will lead to problems that are often catastrophic. Many a times, a revisit of cement integrity is required to diagnose any issues such as formation of micro fractures that will cause fluid or gas migration into the wellbore or to the surface. In such cases where there are issues found with cementing, a remedial cement job is necessary to address the issue.

The design of a cement slurry is very important and should be done case by case to ensure trouble-free mixing before pumping and to achieve desired rheology, fluid loss control and thickening time after pumping downhole. A variety of chemicals have been used in cement for the application as retarders, fluid loss control additives, dispersants, gas migration prevention additives and expansion additives. Selection of right chemicals for cement design based on the well profile, off-set well data and other criteria such as temperature and pressure is the key to achieve maximum and long term benefit.  

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

WhatsApp: +86 15088303595

Wechat: 18458299199

Website: www.ruicoglobal.com

[email protected]