SU432732A3 - A DEVICE FOR PLACING A MEASURING DEVICE INSIDE A COLUMN OF DRILLING RODS P T B f ^ ny ^ ^^ fp-rtr: "'4 -'.;?! - Google Patents

Description

The invention relates to the field of researching it in the process of drilling. A device for accommodating a measuring device and a drill rod string are known to be made in three detachable parts, the upper and the lowest of which have channels for the flush flush and suspension elements with concentrically located outer metal rings and inner elastic rings. The proposed device differs from the well-known in that its upper part is equipped with gold / Ikovy bolt, the inner rings of the suspension elements have grooves forming the channels for the flow of washing liquid. This makes it possible to increase the efficiency of the device. FIG. 1 showed the described device; (In Fig. 2 - a ve, p. Part of the device. The shock drill of the Schtaig L, included in the string of drill rods (preferably at a place close to the drilling tool), is provided with in-lugs 2. An accommodation device is installed inside the drill rig. the measuring device, containing the upper part 3, which is connected to the lower part 4 by the connection 5. The specified connection allows the lower part of the device to be screwed onto the upper part when the latter is already placed inside the percussive drill rod. The upper part 3 includes a slide valve 6, per The location of the device is controlled by the measuring device. The valve can be open (see Fig. 1) or closed (see Fig. 2). The body of the shutter, formed by the upper part of the device, has channels 7, which allow the circulation to be suppressed when the shutter 6 is open, the shutter simply creates an additional pressure loss. The flow of the solution circulates in the direction of the arrows 8. An additional note is guided through the suspension elements along the arrows 9 and allows the suspension elements to be cleaned, ensuring their proper operation. Suspended elements of 1s1 W consist of three concentric rings // -} 3. The outer rings // and 13 are metal, and the inner ring 12 is made of elastomer and is attached by vulcanisation on metal rings. Suspension elements are supported by rings // on protrusion 2, which are held in place by ring 14. Rings 13 rest on protrusion 15, firmly connected to the iodo device, and held in place by ring 16 fixed to bottom 4. Ring valve 17 is held in place 18. On the percussion drill rod is an annular saddle 19 with a gasket 20 of

elastomer designed for / i y; 1lot ee valve 17 and saddle 19. The ring / 2 of elastomer has grooves 2 /, through which there is no additional addition of the circulation of drilling fluid when the valve 17 is open.

-When the shutter 6 is closed, the drilling fluid passes through the channels 7 around the gauge “th P1r. Choice along the arrows S. Because of the additional pressure loss, cos, yes, you need my closed shutter 6,; Alcevic; valve 17, on the outboard device sits on the saddle 19. placed on the percussive drill rod.

Closing the valve on the 17 prevents the circulation of mud and drilling fluid through the suspension zlemelt 10. In addition, this creates a much higher pressure loss through ka:} 1al: l 7 and allows you to receive a transmission signal with a much steeper front . During the deformation of the gypsum rings (see f: 1G. 2),

rbfeHI F

There is a return moment leading to the opening of the valve when the shutter 5 is open again.

Subject and title

A device for placing a measuring instrument inside a string of drill rods, made in the form of three detachable parts, the top and bottom of which have channels for the passage of flushing fluid and suspension elements with a canentric positioned. Outer metal inner rings and elastic rings, characterized in that, in order to increase the efficiency of the device 1, its upper part is provided with a gold-shaped gate, and the outer rings of the suspension elements have loops that form clumps for the passage of flushing fluid.

-2 / y

-ij

14

Fig 1