FIELD: oil and gas industry.
SUBSTANCE: method of water production zone isolation in a well involves sequential injection of coagulation agent (25% solution of calcium chloride), buffer layer of fresh water, and Givpan acrylic reagent. Additionally, polyethylene terephthalate production waste product, PET with low polymerisation degree, is added to Givpan as a filler in amount of 18-24 wt %.
EFFECT: reduced core permeability.
1 dwg, 7 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMER COMPOSITION FOR IN-BED WATER ISOLATION | 2013 |
|
RU2524738C1 |
| METHOD OF PRODUCTIVE STRATUM TREATMENT WITH WATER SHUT-OFF AGENT | 2008 |
|
RU2374425C1 |
| PLASTIC COMPOSITION FOR FORMATION WATER INFLOW INSULATION IN WELL AND STABILIZING OF PRODUCING FORMATION AND METHOD OF ITS APPLICATION | 2016 |
|
RU2627786C1 |
| METHOD FOR WATERED CARBONATE FRACTURED POROUS WATERPROOFED RESERVOIR TREATMENT | 2004 |
|
RU2270914C1 |
| METHOD OF ACID TREATMENT OF FRACTURED-POROUS RESERVOIRS WITH HIGH RATE OF WATER ENCROACHMENT | 2000 |
|
RU2171371C1 |
| PROCEDURE FOR TREATMENT OF WATERED CARBONATE COLLECTORS | 2008 |
|
RU2383724C1 |
| INSULATION METHOD OF FORMATION WATER INFLOW IN WELL AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2010 |
|
RU2446270C1 |
| METHOD OF WATER INFLOW LIMITATION IN FRACTURED CARBONE RESERVOIRS | 2015 |
|
RU2614997C1 |
| METHOD FOR OBTAINING ACRYLIC REAGENT TO RESTRICT WATER INFLUX TO OIL WELL | 2010 |
|
RU2485158C2 |
| INSULATION METHOD OF FORMATION WATER INFLOW AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2013 |
|
RU2554957C2 |
