FIELD: oil and gas industry.
SUBSTANCE: invention is related in particular to compositions for elimination of absorption in productive formations during well drilling. The blocking composition for elimination of absorption in productive formations during drilling of wells includes a gelling agent - guar gum, a heat-stabilizing additive - hydroxypropyl methylcellulose - HPMC, a foaming agent - PolyPAV-VN, a gel stabilizer - a bactericide Polybaccid, a backlinker concentrate and a mixing liquid - technical water at a certain ratio of components.
EFFECT: reduction of well construction time, reduction of well construction costs, as well as preservation of porosity and reservoir properties of the reservoir in production horizons.
2 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF KILLING WELLS WITH ABNORMAL LOW FORMATION PRESSURE | 2005 |
|
RU2330942C2 |
| OIL AND GAS WELL KILLING FLUID | 2016 |
|
RU2627807C1 |
| POLYSACCHARIDE GEL COMPOSITION FOR HYDRAULIC FRACTURING | 2022 |
|
RU2793051C1 |
| FOAMING COMPOSITION | 2000 |
|
RU2187533C2 |
| WELL PROCESS FLUID WITH CONTROLLED ABSORPTION IN THERMO BARIC-RESERVOIR CONDITIONS | 2008 |
|
RU2380391C1 |
| ACID-SOLUBLE LIGHTWEIGHT PLUGGING MATERIAL TO LIQUIDATE ABSORPTION IN PRODUCTIVE FORMATIONS | 2014 |
|
RU2575489C1 |
| METHOD OF DRILLING OF WELLS COMPLICATED BY ABSORBING HORIZONS | 2014 |
|
RU2563856C2 |
| METHOD OF PRODUCING OIL IN POROUS FRACTURED RESERVOIRS REDUCING WELL PRODUCT WATER CONTENT | 2011 |
|
RU2465446C1 |
| DRILLING FLUID | 2023 |
|
RU2806691C1 |
| COMPOSITION OF POLYSACCHARIDE GEL FOR KILLING OF HIGH-TEMPERATURE WELLS | 2011 |
|
RU2483092C1 |
