SU1633103A1 - Device for setting a sensor in well - Google Patents

Description

one

(21) 4429972/03

(22) 05.24.88

(46) 03/07/91. Bksh Number 9

(72) V.M. Pozdnkov and I.A. Krivoshoev

(53) 622.241 (088.8)

(56) USSR author's certificate

N 1305E23, class E 21 B 47/00, 1987.

(54) DEVICE FOR INSTALLING SENSOR IN WELL

(57) The invention relates to mining and m. used to install the sensor in the well. The goal is to increase the reliability of the device by ensuring controllability

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the main BiiycKHE iM of the vol. g.pum by reciprocating movement of the rod with the equalizing valve closed. The device includes a housing 1. In the upper part of the housing 1 is located nladmish. The device has a locking knot in the form of a cross 5, together with a conical sleeve 7 mounted on the shank of the housing 8. The device has levers 9. The last one is pivotally fastened to the cross 5 and mounted with the ability to interact with the sleeve 7. The other ends of the arms 9 are hinged fastened with flat plates 10. Inside the case 1, a sensor 16 is installed. A feed rod is inserted into a tapered sleeve 7, the device is placed. The invention relates to mining and can be used to install the sensor in the well.

The aim of the invention is to improve the reliability of the installation.

FIG. 1 shows a device, a longitudinal section; in fig. 2 - the same top view; in fig. 3 - device assembled with feed and installation rod, general view; in fig. 4 — node I in FIG. one; in fig. 5 - feed and installation rods, axonometrics.

The device includes a housing 1, in its upper part there is an insert 2 with a spring 3. On the surface of the housing there is 1 frame, the prices of the centralizers 4 and the stop assembly, made in the form of a cross

5, spring operated

6. The cross j, together with the taper bushing 7, is mounted on the shank of the housing 8. The device has levers 9 The levers 9 are at one end hingedly fastened to the crosspiece 5, mounted with the ability to interact with the taper bushing 7. The other end

9 are hingedly fastened with dies 10 having ground teeth 11 made along a helix. The shank of the housing 8 and the tapered bushing 7 have grooves 12 and 13 for transmitting rotation to the levers 9 through the feed rod 14 and the liner 2 through the mounting piece 15. Inside the housing 1 there is a sensor 16 connected by cable 17 to secondary equipment (not shown ). On the feed rod 14 and the installation rod 15 made the stops 18 and 19. The liner has a cutting edge 20.

Drilling into the well and pushing it to the bottom. At the moment of reaching the device, the levers 9 are rotated. The plates 10 are rotated, which, moving along the borehole wall, work like a tap, threading the thread on the borehole wall and moving it along the thread. When the preload of the spring 6 reaches the desired value, the feed rod is removed from the well. In the case where acoustic contact between the bottom of the well and the housing 1 is necessary, the insert 2 is rotated, which removes the unevenness of the bottom of the well. 1 hp f-ly, 5 ill.

Moving the crosspiece 5 along the shank of the housing 8 limits the retaining ring 21 "To reduce friction inside the crosspiece 5, a bearing 22 is provided.

The device works as follows.

The feeding rod 14 is inserted into the tapered sleeve 7 (the cable 17 is then passed through the feeding rod 14). The stop 18 with the groove 12 is engaged. The device is placed in the well and pushed by the feed rod 14. When the device reaches the bottom of the well, the levers 9 are diluted 9. The feed rod 14 rotates. The dies 10 move along the well wall. to the tap, threading on the wall-borehole thread and moving along this thread. In the process of advancing the dies 10 along the thread, a preload of the spring 6 occurs. When the preload of the spring 6 reaches the desired value, the feed rod 14 is removed from the well. The device is retained in the borehole due to the geometrical dimensions of the loosened teeth 11, levers 9 and crosses 5 in such a way that in the case of compression of the spring

6force friction between tapered bushing

7 and the levers 9 securely fixes the elements of the device against any relative movement.

In the case where acoustic contact is required between the bottom of the well and the device body 1, an installation rod 15 is inserted into the well (cable 17 is then passed through the installation rod 15). The stop 19 with the groove 13 is engaged. The adjusting rod 15 is brought into rotation. The cutting edge 20 of the liner 2 removes the unevenness of the bottom of the well. After reaching the desired contact between the bottom of the well and the housing 1 of the device controlled by the sensor 16, the installation rod 15 is removed from the well. The device has an increased reliability of sensor installation due to adhesion with the borehole wall using dies 10.

Claims (2)

1. A device for installing a sensor in a well, comprising a housing with centralizers and stop assemblies placed on its surface, has 20 housing parts, and in the shank of a spring-like spider body, a groove is made for connection with a conical mounting bar . FIG. 2 a sleeve on the shank of the housing, and levers, the ends of which are pivotally fastened to the crosspiece and installed with the possibility of interaction with a conical sleeve, characterized in that, in order to increase the reliability of the installation, the device is equipped with dies with eaten teeth, made along a helical line with hingedly fastened with levers, and in the tapered bushing there is a groove for connection with the delivery rod. 2. The device according to claim 1, about tl and h a- 5 th e e with TRM that, in order to increase the reliability of the installation of the acoustic sensor, the device is equipped with a spring-loaded liner with cutting edges placed in the upper  . zt / jj u ////// LK U ///// # ////// Ј # /////// L 4