Research on a Reinforcement Material for Low-Cost and Low-Density Cement Slurry

摘要

section of low-pressure volatile formations, and at the same time toadapt to the current low-cost strategy for oil and gas exploration, alightening and strengthening material was developed. The material hasthe characteristics of good stability, high activity, high water storage,etc., and has a wide range of sources and low price. It is supplementedwith appropriate admixtures to form a low-density cement slurry of1.20 ～1.60 g / cm~3. While expanding the liquid-solid ratio andreducing the density, it has excellent performance and greatly reducedcosts. 60 °C/ 24 h compressive strength is greater than 8 MPa, 72 hcompressive strength is above 10 MPa; slurry stability and pressureresistance are good; water loss is controllable and thickening time isadjustable to meet construction requirements. It has good prospects forpromotion and application.