SU1370223A1 - Gauging and metal-catching tool - Google Patents

Description

(21) 3859593 / 22-03

(22) 12/25/84

(46) 01/30/88. Bul four

(75) V.A. Vopikov, Kh.S.Izmailov,

N.I.Pereoginin and N.A.Ponomarenko

(53) 622.24.051 (088.8)

(56) USSR Copyright Certificate No. 725842, cl. E 21 B 17/10, 1979.

(54) CALIBRATOR METAL TRAINER (57) The invention relates to the drilling of wells for oil, gas and other minerals and improves the efficiency of well calibration. The calibrator contains a barrel 6, overdrip sub I, basket 5 for metal with holes directed under angle of 20–35 to the axis of the calibrator-metal trap. Calibration elements are made in the form of a milling and roller cone sets and have carbide inserts 3, Moreover, the milling set is made in the form of a package of milling discs 2 with vertices and cone-shaped ones in the form of disk cones 9. In the process of operation, worn disks 2 move up. At cones 9 only the lower row of pins are working. After they are worn, the cone is turned over and full-length lower teeth come into contact with the rock. large contact pressure. 4 Cp f-l1-1, 1 Il.

(L

The invention relates to the drilling of wells for oil, gas and other minerals.

The purpose of the invention is to increase the efficiency of drilling.

The drawing shows a calibrator metal catcher.

The device contains a sub 1, milling discs 2, forming a milling set, carbide inserts 3, a finger-lock 4, a basket 5 with ejecting holes, a barrel 6, an upper bearing ring 7 with holes for the axis of cones, an antiwear nut 8, a disk the roller cutter 9, the clip 10 for disk lobes 9 and the axes of the cutters 11, the lower support ring 12, the Sub 1 and the barrel 6 may have a cylindrical groove under the calibrating elements and the basket 5, the ejection holes in the basket 5 are angled with / 20-35 ° to the axis of the well. Anti-wear washer 8, for example made of bronze, provides selective transfer of the tails to the wear steel of the cones 9 of the upper support ring 7 and the sleeve 10, protecting them from abrasive wear. The disc roller cutter 9 is fitted with carbide teeth in a staggered order in two rows. It is permissible to use commercially available cylindro-conical disk cones for burgolovok. In this case, they should be placed alternately up and down with cones, and after critical wear of the lower row of teeth, interchanged. The sleeve 10 has grooves for accommodating the cones 9 and the anti-wear washers 8 and the holes for the axle. Inter-ballistic sections of the cage take the load on the bit. The upper part of the cage mates with the upper support ring 7. The axes of the roller cutters 11 have a double length and, after being turned by 180, work as new ones. By their shoulders at the ends, they are mated with the shoulder of the lower support ring 12, which prevents the axles from turning. The device is assembled in the following sequence: a basket 5 is put on the barrel 6, milling elements are assembled from disks 2 with a finger 4 or a roller cone assembly (parts 7-12), then screwed

An overhead sub 1 is attached and secured.

During operation of the calibrator, the lower milling discs 2 can be moved up as they wear out. Dp of this in the lower part is located full-length in arm drive. The number of carbide thin plates is small (6-8 pieces), which provides a large contact pressure. In disc cones, only the lower row of Zubkovy sticks works. After they are worn, the cones are turned over and the full teeth of the lower calibrating row come into contact with the breed.

The metal catcher calibrator is intended for permanent use in the layout of the bottom of the drill string.

Claims (5)

1. A metal catcher calibrator, including a barrel, a metal basket with holes, gage elements with carbide inserts and a nadolot sub, characterized by basket and calibrating elements fixed in working position. 2. Calibrator metal catcher according to claim 1, characterized in that the calibrating elements are made in the form of milling and roller cone sets. 3. Calibrator metal catcher according to claim 1, characterized in that the milling set is made in the form of a package of milling discs with aligned vertices. 4. Calibrator metal catcher according to claim 1, characterized in that the roller set is made in the form of disk balls. 5. Calibrator metal catcher according to claim 1, characterized in that the holes in the basket are directed at an angle of 20-3 ° to the axis of the calibrator and the metal catcher. inside Order 379/27 Prod-polygr. pr-tia, Uzhgorod, st. Project, 4 Circulation 530 Subscription