SU1460225A1 - Device for closing valves of deep-well sampler - Google Patents

Abstract

The invention relates to the oil and gas industry and is intended for sampling of formation fluid and MB. used in the study of hydrogeological. objects. The goal is to increase the reliability of work. For this, the device has a carriage 8 with a latch 10 spring-loaded relative to it and with an axial channel 17, a needle with a sleeve 4 rigidly attached to its upper part 4 with a pusher 5 spring-loaded relative to sleeve 4. The lower part of the needle is placed in channel 17, the carriage 8 rigidly attached to the upper part of the push rod 11. At the level of the latch 10 in the housing, an emphasis 18 is made. Levers are fixed in the sleeve 4 with the possibility of interaction with the pusher 5 and limited rotation around their axes. The latch 10 communicates with the stop, made in the housing 1, and the needle. The force through the levers is transmitted to the sleeve 4, which acts on the spring-loaded latch 10. Lastly, coming out of the engagement with the housing 1, releases the carriage 8, which as a result moves upward along the housing 1 and drags the stem I1 to the freezing valve of the probe. Levers are fully recessed in Kopnvce 1 2 Il. s (l

Description

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The invention relates to the oil and gas industry, namely, devices for sampling formation fluid in HF wells, and can be used also in the study of hydrogeological objects.

The purpose of the invention is to increase the reliability of the device.

FIG. 1 schematically shows the device, the upper part; in fig. 2 - the same, the lower part (connected with the upper valve U of the sampler), the initial position.

The device includes a housing 1 suspended on a wire (Fig. 1), in the upper part of which in the slots are placed the levers 2, which interact with the projections of the borehole window and the stops 3. The levers 2 are hinged in the sleeve 4 and interact with the pusher 5, spring-loaded spring 6 relative to the sleeve, which is rigidly fixed in the upper hour

fixed B initial position. Then, the sleeve 4, rigidly connected to the needle 7, is moved upwards along the body 1 until the arms 2, hingedly connected to the sleeve 4, exit into the slots of the body 1. Due to the action of the spring-loaded pusher 5 on the arms 2, the latter partially protrude beyond the body 1, since limiters 3 prevent their full output.

When the sampler 15 reaches a predetermined sampling depth, the first few meters of wire connecting the sampler to the winch are slowly manually selected until the levers 2 stop at the inter-coupling junction of tubing, after which the force through the levers 2 is transmitted to the sleeve 4 rigidly connected to the needle 7, which acts on the spring-loaded latch 10. The latch 10, disengaged from the engagement with the housing 10, releases the needles 7. In the lower part of the housing 1, there is a 20 retrac 8, with the result that

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A carriage 8 with a spring 9 and a latch 10 is rigidly connected to the upper part of the pressure rod 11, which is spring-loaded with a spring 12 relative to the housing.

The additional sub 13 connects the housing 1 with the sampler 15 by means of the sub 14, while the pressure rod 11 rests against the sampler valve 16, keeping it open.

In the carriage 8 there is an axial channel 17,, Q in which the lower part of the needle 7 is placed, in the wall of the body at the latch level there is an emphasis 18, and the latch itself is installed with the possibility of interaction with this emphasis and the needle 7 (Fig. 2).

The device works as follows.

The housing 1 of the device is connected by means of an additional sub 13 and sub 14 to the sampler 15 so that the pushing jaw 11 abuts against the valve 16, keeping it open for the duration of the descent of the device into the well.

The carriage 8 is rigidly connected to the pressure rod 11 and moves down the body 1, compressing the spring 12, located 35

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by the action of the spring 12 moves upward along the housing 1 and carries along the push rod 11, releasing the valve 16 of the sampler 15. In this case, the levers 2 are fully recessed in the housing 1.

Claims (1)

Invention Formula A device for closing the sampler valves, including a body suspended on a wire, levers installed in the housing slots with the ability to interact with the protrusions of the borehole walls, and a pressure rod that is spring-loaded relative to the body and interacting with the sampler valves, in order to increase the reliability of operation , it is equipped with a carriage with a latch spring-loaded relative to it and an axial channel and equipped with a needle with a pusher hub rigidly attached to its upper part; relative to the sleeve, with the lower part of the needle placed in the axial channel of the carriage, the latter is rigidly attached to the upper part of the pressure rod, and in the case at the level of the latch there is an emphasis, while the levers in the additional sub 13.g fixed in the sleeve with the possibility of reciprocal. The carriage 8 is moved until the moment of entrance-mode with the pusher and limited day latch 10, which affects the rotation around their axes, and the latch set spring 9, in engagement with the stop 18 nanovlena with the ability to interact with case 1, resulting in a carriage with a cage made in the case and a needle. fixed B initial position. Then, the sleeve 4, rigidly connected to the needle 7, is moved upwards along the body 1 until the arms 2, hingedly connected to the sleeve 4, exit into the slots of the body 1. Due to the action of the spring-loaded pusher 5 on the arms 2, the latter partially protrude beyond the body 1, since limiters 3 prevent their full output. When the sampler 15 reaches a predetermined sampling depth, the first few meters of wire connecting the sampler to the winch are slowly manually selected until the levers 2 stop at the inter-coupling junction of the tubing, after which the force through the levers 2 is transmitted to the sleeve 4 rigidly connected to the needle 7, which acts on the spring-loaded latch 10. The latch 10, coming out of the engagement with the housing 10, releases the grip 8, with the result that the latter five Q five 0 by the action of the spring 12 moves upward along the housing 1 and carries along the push rod 11, releasing the valve 16 of the sampler 15. In this case, the levers 2 are fully recessed in the housing 1. Invention Formula A device for closing the sampler valves, including a body suspended on a wire, levers installed in the housing slots with the ability to interact with the protrusions of the borehole walls, and a pressure rod that is spring-loaded relative to the body and interacting with the sampler valves, in order to increase the reliability of operation , it is equipped with a carriage with a latch spring-loaded relative to it and an axial channel and equipped with a needle with a pusher hub rigidly attached to its upper part; relative to the sleeve, with the lower part of the needle placed in the axial channel of the carriage, the latter is rigidly attached to the upper part of the pressure rod, and in the case at the level of the latch there is an emphasis, while the levers Fi, GL