FIELD: compounds for stabilizing of bottom-hole zones of slightly cemented formation; may be used in production of oil and gas. SUBSTANCE: compound contains, wt.-%: cement, 19-21; quartz sand with size of grains 0.315-0.630 mm, 42-49; polyvinylacetate emulsion, 0.3-0.6; hydrolyzed polyacrylonitrile, 0.020-6.030; hydroxide or carbonate of alkali metal, 0.6-0.8; sawdust with moisture content of 10-12%, 1.5-2.6; water, the balance. Ratio of hydrolyzed polyacrylonitrile and polyvinylacetate emulsion, wt.pts is 1: (15-20). EFFECT: more uniform permeability of produced cement stone in height of treated bottom-hole formation zone. 4 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF STABILIZATION OF BOTTOM-HOLE PRODUCING FORMATION ZONES | 1999 |
|
RU2172811C2 |
METHOD OF RECOVERY OF BOTTOM-HOLE FORMATION ZONE OF GAS WELL | 2000 |
|
RU2183724C2 |
COMPOUND FOR CONSOLIDATION OF BOTTOM-HOLE ZONE OF BED | 1997 |
|
RU2138616C1 |
COMPLEX ADDITIVE TO GROUTING MORTAR BASED ON PORTLAND CEMENT | 1994 |
|
RU2078908C1 |
COMPOSITION FOR SHUTOFF OF WATER INFLOWS TO WELL | 2001 |
|
RU2209297C2 |
METHOD OF GROUTING MORTAR-PREPARATION | 2002 |
|
RU2213844C1 |
DRY MIXTURE FOR PREPARING EXPANDING GROUTING MORTAR | 2019 |
|
RU2710943C1 |
GROUTING MORTAR FOR REPAIR JOBS AND WELL LINING | 1992 |
|
RU2035585C1 |
METHOD OF WELLS CASING AND CEMENTING | 1992 |
|
RU2068489C1 |
LIGHT-WEIGHT HEAT-RESISTANT GROUTING MATERIAL | 1992 |
|
RU2043481C1 |
Authors
Dates
1998-11-10—Published
1996-12-31—Filed