SU1343383A1 - Probe tip - Google Patents

Abstract

The invention can be used in the equipment for logging. The purpose of the invention is to expand the operational capabilities of the device by providing a wide range of use with a multicore cable for wells of various sections. The probe tip includes a housing, a cap and a cap nut. A cable clamp is placed in the socket of the cap. The body and cap are connected by a threaded connection. The sealing system is embodied as a set of gaskets enclosed between washers with coaxial holes for the cable cores. The body has a shoulder on which the plug connector rests. The plug connector is installed from the top of the chassis. A spacer sleeve is installed between the plug connector and the sealing system. Gaskets pursed sleeve. 2 hp f-ly, 1 ill. (С (Л со 4; оо со 00 СО

Description

t1343383

This invention relates to a device.

Spacer sleeve 9 can be made split or with windows in the central part.

Probe tip works as follows.

A cable is threaded into the cap 2 with sufficient reserve and its armor is embedded in the cable grip 4, the cap nut 3 is put on the body 1. The cable cores are passed into the sleeve 5, and then successively into the through holes 18 of the washer 6, rubber gaskets 7 and washers 8, and also into the spacer sleeve 9. The ends of the cores are soldered to the contacts of the plug connector 10. Next, the soldering points are insulated with vinyl chloride tubes (not shown) previously attached to the ends of the cores. Then the package made up of the washer 6, the gaskets 7, the washer 8 and the spacer sleeve 9, is displaced along the cable cores towards the plug connector 10 until it (the package) is firmly seated, beginning with the top introduction 5 spacer sleeve 9. At the same time parts are placed sleeve 5, washer 6, rubber groove 15 plug U

you for borehole studies and can be used in geophysical equipment.

The purpose of the invention is to expand the operational capabilities of the device, reducing the complexity of manufacturing and improving the reliability of its sealing

The drawing shows a probe tip, a general view.

The probe tip consists of body 1, cap 2 and cap nut 3, made hollow. In the socket part of the cap 2 there is a cable clamp 4 for fixing the cable armor (not shown). The housing 2Q 1 and the cap 2 are interconnected by means of a threaded connection.

The cap nut 3 is loose. on the housing 1.. In the cavity of the housing i, the main gaskets 7, washer B, spacer sleeve 9, plug connector 10, which is installed on the flange 11, made inside the middle part of the body 1. Washer 6, rubber gaskets 7, washer 8, spacer sleeve 9 and the plug-in connector 10 form a freely-installed package, press the sleeve 1-SHO 5. In the upper part of the sleeve 5 there is a key protrusion 12, the entrance is wedge into the key groove 13, cut along the inside of the housing 1. In the end part of the spacer sleeve 9 About the skirt of the plug connector 10, manufactured face Slot 14, and along the skirt of the plug connector 10 and along the collar 11 of the housing - corresponding to it keyways 15 and 16. The length of the end slot 14 is equal to the height of the skirt of the plug connector 10 and the thickness of the collar 11, Face slot 14 is inserted into the keyways 15 and 16. At the lower end of the housing 1, a locking protrusion 17 is made, intended for orientation of the housing 1 with respect to the head of the downhole tool (not shown). In the washer 6, rubber gaskets 7 and washer 8 are made through holes 18 for the cable cores. Their number and size correspond to the number and size of the cable cores. The same number of sockets in the plug connector 10.

Oriented by the end-roller 14 of the spacer sleeve 9.

The assembled unit is inserted into the housing 1.

from the side of its upper introductory part until it stops against the flange 11 and is oriented relative to the body 1 by the end slot 14 of the spacer sleeve 9, inserted into the keyway 16. The sleeve 5 is shifted and installed in the case 1. Its keyway 12 slides along the keyway 13 of the body 1. Cap 2 is moved along the cable and twisted with the housing 1, pressing

sleeve 5. The gaskets 7 are compressed at the same time, increasing in radial dimensions, and their axial holes 18 are narrowed, which results in pre-sealing of the cable cores and

simultaneous insulation of the hull 1. The pulling force depends on many actors and is calculated or calculated by experiment. The final operation of the assembly is to lock the cable clamp 4 against the cap 2.

During operation of the probe tip, it is fastened to the head of the device with the help of a cap nut 3.

The orientation of the parts of the plug connector is carried out using the locking protrusion 17.

In the process of lowering the device into the well, the washer 6 is influenced by the pressure of the liquid column, which, passing on the gaskets, additionally compresses them, improving sealing.

In the case of manufacturing the spacer sleeve 9 cut along the axis, the assembly operation is simplified. In this case, the cable cores are also passed into the sleeve 5, the washer 6, rubber gaskets 7 and the washer 8. The ends of the wires are soldered to the contacts of the plug connector 10. After isolating the soldering points, part of the cut distance sleeve 9 is installed on both sides, after which the assembled the unit is inserted into the housing

In the manufacture of the spacer sleeve 9 with side windows in its central part, the approach to the contacts of the plug connector 10 "is simplified.

The probe tip has the following advantages.

The expansion of the operational capabilities of the device is achieved by reducing its transverse dimensions and the possibility of connecting to downhole tools with a diameter from

28

mm and also increase the area

plug connector. Simplicity in the manufacture of the device is achieved by reducing the number of parts and simplifying the manufacturing technology. Improving the reliability of seals is achieved by reducing the number of sealing units. The proposed device has a lower metal consumption and manufacturing cost by reducing the size and simplifying the design.

Claims (3)

1. A probe tip comprising a housing, a cap nut and a cap, at the same time the sleeve is placed in the housing,. the cable core sealing system and the plug connector; a nipple clip is placed in the socket part of the cap, and a cap nut is loosely mounted on the housing, which is threaded to the cap, and the sleeve and plug connector can be fixed to the housing, characterized in that , in order to expand the operational capabilities, reduce the complexity of manufacturing and increase the reliability of sealing, it is equipped with a spacer sleeve and two washers, the cable core sealing system is made in Coaxial through holes are made in one or several rubber gaskets enclosed between washers, washers and rubber gaskets, the number and diameter of which corresponds to the number and diameter of the cable cores being inserted, a collar is made in the internal cavity of the body, the upper washer is installed with the possibility of interaction with the sleeve , the plug connector is mounted on the body flange on the side of its upper introductory part, and the spacer sleeve is freely located between the bottom washer and the plug connector with the possibility of The action with them. 2. A tip according to Claim 1, characterized in that the spacer sleeve is made flush. 3. A tip according to claim 1, characterized in that the windows are made in the central part of the spacer sleeve. .2 Editor V.Danko Compiled by V.Ishchenko Tehred A. Kravchuk Proofreader L. Pilipenko 4821/48 Circulation 730 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, st. Project, 4