FIELD: drilling. SUBSTANCE: compound for lining casing is prepared by mixing paraffin melt with wood-fiber material (sow- dust) at the following constituent ratio, mass %: paraffin 70-80, wood-fiber material 20-30. EFFECT: casing running into deep wells facilitates. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR LINING OF CASING | 1990 |
|
RU2017015C1 |
| CABLE LINE | 0 |
|
SU1831742A3 |
| LOAD-CARRYING MEANT FOR OPERATION IN DRILLING FLUID OF SUPERDEEP BOREHOLES | 0 |
|
SU1798817A1 |
| CASING STRING FOR DEEP WELLS | 1990 |
|
RU2017928C1 |
| DRILL PIPE WITH GAS LINING | 1997 |
|
RU2149975C1 |
| DRILL PIPE | 1991 |
|
RU2015293C1 |
| WELL SUPPORT METHOD | 0 |
|
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| DRILL PIPE WITH LIGHTENING OUTER COATING | 1992 |
|
RU2074946C1 |
| METHOD OF DRILLING THE DIRECTIONAL AND HORIZONTAL PROSPECTING OR PRODUCING WELL FROM OIL AND GAS | 1998 |
|
RU2149973C1 |
| TOOL FOR DRILLING SUPERDEEP WELLS | 1995 |
|
RU2092672C1 |
