SU1435768A1 - Equipment for running instrument on cable into producing well - Google Patents

Abstract

The invention relates to the oil industry and m. used for well logging. The purpose of the invention is to increase the reliability of the descent devices and reduce the metal intensity of equipment. The equipment contains a column of lifting pipes 1, at the end of which a downhole pump is installed, made in the form of a cylinder 4 with a lock 5 installed in the castle support 6, the Pump has a drive 2 to transmit the return-and-forward movement of the pl- (L 00 ate about: 00

Description

Wiper 3. The latter is made with an axial channel for the passage of the device 1 on the cable and is placed between the cylinder 4 and the sleeve 8. Plunger 3 is connected to the actuators 2 by means of pipes 1. Support 6 is intended for fastening the device

11 in the pipe 1. During the descent process, the device 11 is in the channel formed by the internal cavity of the pipe 1 and the axial bore of the plunger 3. This channel allows increasing the speed of the device 11 under the pump, 1 sludge.

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The invention relates to an oil-bearing industry and can be used for launching instruments into a well when conducting geophysical surveys in a mechanized well.

The purpose of the invention is to increase the reliability of the descent devices and reduce the metal intensity of equipment.

The drawing shows equipment for launching instruments on a cable into a production well, general view

The equipment comprises a lifting pipe column (CPT) 1, which is connected from above to an individual ground drive 2 for transmitting a reciprocating motion to the pump located below. The pump has a plunger 3, annularly shaped, cylinder 4 with a lock 5 Zamkova bearing 6 is installed in the casing 7, inside which is placed KPT 1 The sleeve 8 is concentrically installed in the cylinder 4 on which device 11 is fixed, Pluuer 3 is made with an axial channel for passing device 11 and is placed between cylinder 4 and sleeve 8, Plunger 3 is connected to drive 2 by means of KPT 1, Zamkova bearing 6 is fixed in casing 7. In cylinder 4 and Plunger 3 are valve 12, for selection the wellbore fluid at the top of CPT 1 is a flexible tube 13,

Equipment for lowering devices on the cable into the production well works as follows.

The equipment is lowered into the well in the same way as the plug-in sucker rod pumps.

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t, e, cylinder 4 with valve 12, lock 5 and plunger 3 with valve 12 assembled. Increase CPT I, lower the pump to the required level in casing 7, where lock 5 with a landing cone is planted in lock support 6, Upper end of CPT 1 is connected to a surface drive 2 and provided with a flexible pipe 13 for collecting well fluid. In the channel formed by KPT 1, an annular plunger 3 and a sleeve 8, the device 11, attached to the cable 10, and the removable gland 9, which is installed in the saddle of the sleeve 8, are lowered. Then, after starting the drive 2 and bringing the well to the operating mode, t study. The cable 10, the gland 9, the device 11 is lifted to the surface in the reverse sequence of the descent, and a plug is lowered into the saddle of the sleeve 8 from the top until the next well survey is carried out. Lifting equipment is similar to lifting plug-in sucker-rod pumps to the surface. In the extreme upper position of the plunger 3 in the cylinder 4, the lock 5 and the lock bearing 6 are disconnected,

During the descent, the device 11 is not in the annular space, where complications associated with the sickle section of the channel are possible, but in the channel having a circular section about the internal cavity KPT 1, axially orifice of the pump plunger 3 and concentrically installed in the cylinder 4 sleeve 8, This channel for the descent of devices allows to increase the reliability of the descent of devices under the pump and to increase the speed of descent. Application for connecting the plunger 3 with the actuator 2 KPT 1 reduces.

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the metal intensity of the equipment, since such a metal-consuming link as the rod string is excluded.

Claims (1)

Invention Formula Equipment for launching instruments on a cable into a production well, containing a column of lifting pipes, at the end of which a well pump is installed, made in the form of a cylinder with a lock installed in the lock support, and a plunger connected to a drive for transmitting reciprocating motion; about t 57634 characterized by the fact that, in order to increase the reliability of the descent of the instruments and reduce the metal consumption of the equipment, it is provided with a sleeve with a saddle for a removable gland for a cable installed concentrically in the pump cylinder, the plunger is made with an axial channel for passing the device on the cable and placed between the cylinder and a sleeve, wherein the plunger is connected to the drive by means of a column of lifting pipes, and the lock bearing is intended to be mounted in the casing string. .