FIELD: measuring technology.
SUBSTANCE: invention refers to geophysical well survey facilities and aims at visual observation of internal volume of a turbid-medium well. That is ensured by lowering a video camera into the well. Said video camera is mounted on a tubing hanger, that is followed with injection of an optically transparent liquid column and video survey which provides a basis to determine the well integrity. Herewith before lowering the video camera, the tubing hanger is attached to a stuffing stem while movable along the full length thereof. The video survey is enabled in simultaneous and synchronous traveling of the video camera, tubing hanger and optically transparent liquid column.
EFFECT: higher survey effectiveness and cutting survey time with simultaneous cost reduction.
3 dwg
| Title | Year | Author | Number |
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