FIELD: construction.
SUBSTANCE: invention relates to the field of construction or drilling, in particular to the method for isolation of the subsoil layer, when it is assumed that the soil consists of permafrost rocks. Method for isolation of the subsurface layer includes the following stages: (a) mechanical destruction of said subsoil layer; (b) insulating material is injected into said subsoil layer; (c) mixing said subsoil layer and said insulation material. Thermal conductivity of said insulating material is substantially lower than that of subsoil layer, wherein mixed subsoil layer has shape of inverted cone.
EFFECT: technical result consists in provision of change of thermal properties of subsoil layer in place of occurrence without its replacement, as much as possible reducing volume of opened rock, reducing elevated or drilling works, maintenance structure and stability of wellheads, reducing material consumption.
8 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR COMPLEX THERMAL STABILIZATION OF PERMAFROST ROCKS IN THE IMPACT ZONES OF PRODUCING WELLS OF NEOCOMIAN-JURASSIC DEPOSITS | 2021 |
|
RU2779073C1 |
| METHOD DETERMINING OPTIMUM CONDITION OF OPERATION OF WELL IN ROCKS FROZEN FOR MANY YEARS | 1999 |
|
RU2170335C2 |
| SYSTEMS FOR TREATMENT OF UNDERGROUND BED WITH CIRCULATING HEAT TRANSFER FLUID | 2009 |
|
RU2529537C2 |
| ONE-PIECE JOINT FOR INSULATED CONDUCTORS | 2012 |
|
RU2610459C2 |
| PROCESS OF OPERATION OF PRODUCTION WELL UNDER CONDITIONS OF EXPANSION OF ROCKS FROZEN FOR MANY YEARS | 1999 |
|
RU2170336C2 |
| METHODS OF PRODUCING HYDROCARBONS FROM HYDROCARBON-CONTAINING MATERIAL USING BUILT INFRASTRUCTURE AND RELATED SYSTEMS | 2008 |
|
RU2450042C2 |
| METHOD OF WELL-ROCKS SYSTEM STABILIZATION IN CRYOLITIC ZONE | 2002 |
|
RU2209934C1 |
| THERMAL EXPANSION ACCOMMODATION FOR SYSTEMS WITH CIRCULATING FLUID MEDIUM, USED FOR ROCKS THICKNESS HEATING | 2012 |
|
RU2612774C2 |
| METHOD OF PRODUCING AND USING A SUBSTRATE COATED WITH CEMENT | 2015 |
|
RU2692716C1 |
| WELL CONSTRUCTION AND OPERATION METHOD | 2005 |
|
RU2320849C2 |
