Cryogenics with cement microscopy redefines cement behavior

Journal Article · Mon Oct 03 00:00:00 EDT 1994 · Oil and Gas Journal; (United States)

OSTI ID:6841630

Mehta, S; Jones, R ^[1]; Caveny, B ^[2]

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1. ARCO Exploration and Production Technology, Plano, TX (United States)
2. Halliburton Energy Services, Duncan, OK (United States)

Cement microscopy (CM), cryogenics, environmental scanning microscopy (ESM), scanning electron microscopy (SEM), and other technologies are leading investigators to change their views on cement gelation, hydration, and retardation. Cement samples frozen in a nitrogen slush and viewed with an SEM present a more accurate picture of the setting process. Observations made through this technique have revolutionized ARCO Exploration and Production Technology's and Halliburton Energy Services' oil field cement procurement and slurry design. Findings from this joint study are expected to lead to: optimized waiting on cement (WOC) times; reduced planning and design time; optimized slurry retarder additions; optimized gel times to fit given situations; especially applicable to squeeze operations; improved cement selection (from vendors) for peak performance; and improved cement manufacture. The paper discusses the measuring methods and the findings on the following: cement voids, cement gelation, and retardation mechanisms. It also briefly discusses the impact these discoveries have on operations.

• OSTI ID: 6841630
• Journal Information: Oil and Gas Journal; (United States), Vol. 92:40; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
CEMENTS
CURING
HYDRATION
PORE STRUCTURE
OIL WELLS
CEMENTING
ADDITIVES
EXPERIMENTAL DATA
GELS
MANUFACTURING
MATERIALS TESTING
PERFORMANCE
BUILDING MATERIALS
COLLOIDS
DATA
DISPERSIONS
INFORMATION
MATERIALS
MICROSTRUCTURE
NUMERICAL DATA
SOLVATION
TESTING
WELLS
360602* - Other Materials- Structure & Phase Studies
400201 - Chemical & Physicochemical Properties
020300 - Petroleum- Drilling & Production