SU1191554A1 - Hole-bottom slime and metal trap - Google Patents

Abstract

WATCHING SPAMOMETALPOULVI-. A TEL, comprising a housing divided by a partition into an air chamber and a Trap chamber, a valve installed in the axial channel of the partition with a rod in the lower part and a locking mechanism installed in the trap chamber a pusher to interact with the valve stem and gripping elements and a cable head for lowering the slurry floater into the well, characterized by THAT, in order to eliminate the premature derailment of the valve's gang and increase the working efficiency by increasing the effective volume of the body, the valve locking mechanism is located under the partition and is made of fixed support balls, bushings and stem fixed by balls in the initial position, the stem has an annular shoulder under the balls, and the support cup and sleeve i W of the window, the support cup rigidly connected with the partition, the sleeve installed with the possibility of axial displacement of the vessel relative to the glass and rigidly connected with the pusher, while in the initial position the sleeve overlaps the windows of the glass and the pusher projects beyond the end of the body. : o: l sd

Description

1 1 The invention relates to devices for cleaning wells from sludge and metal objects and can be used in drilling and basic repair of oil and gas wells. The purpose of the invention is to eliminate the premature operation of the valve and increase the efficiency of the device operation by increasing the effective volume of the case. Figure 1 schematically shows a slurry trap in the initial position, a general view; Fig. 2 is a section A-A in Fig. 1; Fig. 3 shows the device in. working position; in fig. 4 section bb in Fig.3. The device includes a logging cable 1 connected to the cable head 2. Cable head 2 is connected to adapter 3, which is threaded to body 4 of air chamber A. In the lower part of air chamber A, a partition 5 with a central channel B is located separating the air chamber from the trap chamber B. The length of the trap chamber is selected in such a way that its volume is 3-5 times less than the volume of the air chamber A. On the partition 5. valve 6 and rod 7 are mounted, in the upper part of which there are bushing 8, spring 9 and nut 10 V lower The second part of the stem 7 has an end collar 11 for the balls 12. The supporting cup 13, connected by thread to the partition 5, has in the upper part openings 14 for the entry of liquid and sludge, and in the lower part has a hex key 15, three windows 16 for balls 12 and the latch 17, the Movable sleeve 18 is made with three longitudinal Windows 19 under the balls 12 and a groove 20 under the latch 17. The pusher 21 is connected to the rod 7 and the movable sleeve 20 by a nut 22, The connection between the valve 6 and the rod 7 is sealed with rubber rings 23. 42 V In the lower part of the trap chamber B there are petal loops. hvatnye elements 24 and the pusher 21 in the rest position protruding beyond the lower end of the housing 4. Concentric set reference glass 13, the sleeve 18 and a rod with an annular shoulder 11 together with the balls 12 form a locking mechanism for locking the valve in the closed position. The device works as follows. After the locking mechanism is assembled with a key to the left side, the supporting cup 13 is tightened for the hexagon 15, thereby pressing the valve 6 to the partition 5 with its mounting seat. After that, the trap chamber B is turned to the partition 5. The device on the cable-cable 1 is lowered into the well before the slab. When the pusher 21 reaches its bottom 25, rests on the bottom, the movable sleeve 18 rises, the balls 12 fall out of the windows 19, the rod 7 is released and the valve 6 rises under the action of forces due to hydrostatic pressure in the well and air chamber A. Together with the valve 6, the pusher 21 and the movable sleeve 18 are raised (Fig. 2). After opening valve 6 of channel B, the liquid from chamber-trap B rushes up into air chamber A and during its movement carries slime and solid objects at the bottom. Since the volume of air chamber A is 3-5 times larger than the volume of chamber trap B, sludge and lighter sand items fall into air chamber A. When the pressure in chambers A and B is equalized, valve 6 under the action of spring 9 closes channel B. More heavy objects and sludge trapped in the trap chamber are held by catchers 24. After lifting, the device is disassembled and cleaned.

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Claims (1)

BOTTOM AND I PAMOMETALPOULOV-. A TELE containing a body divided by a partition into an air chamber and a trap chamber, a valve installed in the axial channel of the partition wall with a rod at the bottom and a locking mechanism, a pusher installed in the trap chamber to interact with the valve stem and gripping elements and a cable head for lowering the sludge trap into the well, characterized in that, in order to eliminate premature valve actuation and increase work efficiency by increasing the useful volume of the body, the valve shut-off mechanism is located false under the partition and made in the form of fixed support balls, bushings and rods fixed in balls in the initial position and concentric, the stem has an annular collar under the balls, and the support cup and window sleeve, the support cup being rigidly connected to the partition, the sleeve is axially mounted moving relative to the glass and is rigidly connected with the pusher, while in the initial position, the sleeve overlaps the window of the glass, and the pusher protrudes beyond the end of the housing. S_U ... 1191554>