ULTRA-LIGHTWEIGHT CEMENT

Sabins, Fred

Cementing Solutions, Inc. (United States)

关键词: Oil Wells;    02 Petroleum;    Cements;    Weight;    Centrifugal Pumps;   

DOI  :  10.2172/812030
RP-ID  :  NONE
RP-ID  :  FC26-00NT40919
RP-ID  :  812030

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this project is to develop an improved ultra-lightweight cement using ultra-lightweight hollow glass spheres (ULHS). Work reported herein addresses tasks performed in the fourth quarter as well as the other three quarters of the past year. The subjects that were covered in previous reports and that are also discussed in this report include: Analysis of field laboratory data of active cement applications from three oil-well service companies; Preliminary findings from a literature review focusing on problems associated with ultra-lightweight cements; Summary of pertinent information from Russian ultra-lightweight cement literature review; and Comparison of compressive strengths of ULHS systems using ultrasonic and crush methods Results reported from the fourth quarter include laboratory testing of ULHS systems along with other lightweight cement systems--foamed and sodium silicate slurries. These comparison studies were completed for two different densities (10.0 and 11.5 lb/gal) and three different field application scenarios. Additional testing included the mechanical properties of ULHS systems and other lightweight systems. Studies were also performed to examine the effect that circulation by centrifugal pump during mixing has on breakage of ULHS.