FIELD: drilling of soil or rock.
SUBSTANCE: invention relates to the field of drilling equipment and is intended for retrieving a stuck drill string and drilling tool in controlled directional and horizontal wells. Suspended emergency drilling unit for retrieving a stuck drill string or drilling tool in controlled directional and horizontal wells by drilling a parallel borehole includes a parallel mating drill string with a drill and a jet head. In this case, parallel mating drill string is connected rigidly and coaxially with a suspended guide bush equipped with teeth sliding along the stuck drill string.
EFFECT: technical result consists in the increase in the reliability of the extraction of a stuck string or a drilling tool.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| EMERGENCY TOOL FOR EXTRACTION OF STUCK DRILL STRING IN INCLINED-DIRECTED WELL | 2019 |
|
RU2720834C1 |
| DETERMINATION OF PIPE STRING CLAMPING POINT IN WELLBORE | 2014 |
|
RU2696738C2 |
| DETERMINING STUCK POINT OF TUBING IN WELLBORE | 2014 |
|
RU2656643C2 |
| CASING DRILLING METHOD WITH RETRIEVABLE BOTTOMHOLE ASSEMBLY (RBA) | 2023 |
|
RU2796156C1 |
| METHOD FOR INSTALLATION OF SHAPED SHUTTER IN WELL AND DEVICE FOR ITS IMPLEMENTATION | 2018 |
|
RU2705671C1 |
| PIPELINE PULLING METHOD IN HORIZONTAL WELL | 2019 |
|
RU2734198C1 |
| HYDROMECHANIC JAR | 2004 |
|
RU2284405C2 |
| SYSTEM FOR MONITORING THE PROFILE OF THE BOTTOM OF A BOREHOLE AT THE STAGES OF EXPANSION WHEN BUILDING COMMUNICATIONS BY THE HORIZONTAL DIRECTIONAL DRILLING METHOD | 2021 |
|
RU2771433C1 |
| DEVICE FOR CLEANING WELL BORE FROM MUD AND ELIMINATION OF DIFFERENTIAL WALL STICKING | 2010 |
|
RU2443848C1 |
| DEFLECTING DEVICE FOR DRILLING OF BRANCHES FROM HORIZONTAL BOREHOLE | 2018 |
|
RU2696696C1 |
