| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: device includes body, feed-through barrel with openings, tube for drill mud delivery, bearings, cups, covers, continuous washing system that includes continuous washing cross-over shoe with side port. In the body there is an additional opening with control rod for side port valve in the continuous washing cross-over shoe. In a gap between the rod surface and opening in the body there are sealants with potential back-and-forth and rotary movement of the rod. During the period of well washing through the side port the continuous washing swivel is placed at the cross-over shoe, at any other time it is placed above the rotary table. In process of well washing in a circular gap between the cross-over shoe surface and inner surface of the table there are two groups of circular sealants.EFFECT: expanded processing capabilities at drilling and continuous washing.5 cl, 10 dwg |
