Method and composition for treating low-temperature subterranean formations

Patent · Tue Jul 20 04:00:00 EDT 1971

OSTI ID:5596851

Fischer, P W; Scheffel, J W

A water-insoluble particulate composition having controlled oil solubility is described. This composition is comprised of solid particles of a homogenous mixture of (1) about 10 to 13% by wt of an ethylene-vinyl acetate copolymer that contains about 23 to 30% by vinyl acetate and exhibits a melt index of about 300 to 500 g per 10 mins; and (2) a paraffin wax that contains at least 70% by wt hydrocarbons having 25 to 32 carbon atoms per molecule. Also, a process employing this particulate composition in drilling wells into low-temperature subterranean formations, and in fracturing and treating such formations, is described. (19 claims)

• Assignee: Union Oil Co. California
• Patent Number(s): US 3593794
• OSTI ID: 5596851
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ACETATES
ALKANES
CARBON
CARBOXYLIC ACID SALTS
COMMINUTION
COPOLYMERS
DISPERSIONS
DRILLING
ELEMENTS
ENGINEERING
FRACTURING
GEOLOGIC FORMATIONS
HYDROCARBONS
MELTING POINTS
MIXTURES
MOLECULAR STRUCTURE
NATURAL GAS WELLS
NONAQUEOUS SOLVENTS
NONMETALS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PARTICLES
PHYSICAL PROPERTIES
PLUGGING
POLYMERS
QUANTITY RATIO
RESERVOIR ENGINEERING
RESERVOIR TEMPERATURE
SOLIDS
SOLUBILITY
SOLVENTS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WAXES
WELL DRILLING
WELLS