FIELD: oil industry.
SUBSTANCE: invention relates to the oil industry. Method of visual check of the spinning of oilfield and gas tubes extracted from a well, one of which is made with a field end with an external thread, and the other with a collar end with an internal thread, by applying a contrast mark. In this case, a base grease mixed with a paint pigment is used as the mark, contrasting with a color of an application surface. Marks are applied uniformly as a continuous layer, distributing along the external thread of the joint until the color of the application surface disappears throughout the threaded part of the pipe and the visual check of the spinning-up until the contrast mark of the field end disappears under the collar end is provided.
EFFECT: technical result is the provision of reliable sealing of threaded joints during multiple spinning-unscrewing.
1 cl, 4 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF VISUAL CONTROL OF SCREWING OF THE COUPLING OF OIL AND GAS FIELD PIPES | 2018 |
|
RU2687718C1 |
| METHOD OF THREADED CONNECTIONS SEALING INCREASE OF CIRCULAR AND PUMP-COMPRESSOR (LIFT) COLUMNS | 2017 |
|
RU2667919C1 |
| METHOD FOR CONTROLLING PROCESS OF MAKING COLUMNS OF CASING AND TUBING PIPES IN CONDITIONS OF LOWERING THEM INTO OIL WELLS | 2022 |
|
RU2809458C1 |
| GREASE USED FOR SEALING THREADED CONNECTIONS | 2007 |
|
RU2355740C1 |
| MARK APPLYING METHOD TO VISUALIZE OIL- AND GAS-FIELD PIPE SPINNING-UP (VARIANTS), PIPE SPINNING-UP METHOD AND VISUAL CONTROL METHOD | 2005 |
|
RU2297511C2 |
| THREADED JOINT CONICAL CONNECTIN OF DRILL PIPES | 2020 |
|
RU2747498C1 |
| THREADED LOCKING CONICAL CONNECTION OF DRILLING PIPES AND METHOD OF INCREASING ITS CARRYING CAPACITY AND SERVICE LIFE | 2019 |
|
RU2728105C1 |
| DRILLING PIPES TWO-SUPPORT THREADED CONNECTION | 2020 |
|
RU2744965C1 |
| THREADED CONNECTIONS FOR OIL FIELDS | 2008 |
|
RU2464475C1 |
| METHOD FOR INSPACTION OF DEGREE OF WEAR OF TAPER JOINT PARTS THREAD (MODIFICATIONS) | 2004 |
|
RU2270978C1 |
