Shale oil anti-diameter-expanding and anti-blocking self-adjusting intelligent choke

Abstract

The present application relates to shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle, including oil nozzle adjusting bin, adjusting bin sand prevention liquid channel, anti-punching tee; the side of oil nozzle adjusting bin forms nozzle mounting bin, adjustable double nozzle is installed in nozzle mounting bin, the other side of oil nozzle adjusting bin is fixedly connected with the one end of adjusting bin sand prevention liquid channel, the other end of adjusting bin sand prevention liquid channel is fixedly connected with the first through hole of anti-punching tee, the second through hole opposite to the first through hole of anti-punching tee is installed anti-punching plug, and the third through hole of anti-punching tee forms oil liquid direction changing channel; adjustable double nozzle includes first connecting pipe, second connecting pipe, the inside of first connecting pipe is provided with a first flow channel, the inside of second connecting pipe is provided with a plurality of second flow channels, and one end of second connecting pipe is rotatably and sealingly connected with one end of first connecting pipe; the present application takes static single nozzle and rotating porous nozzle combination as core, and guarantees anti-punching safety.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of shale oil production, and particularly relates to a shale oil anti-diameter-expanding and anti-blocking self-adjusting intelligent oil nozzle. BACKGROUND

[0002] The current shale oil pipeline technology from underground to ground to oil nozzle into the ground oil pipeline has low automation and intelligence, and has many problems, for example, nozzle diameter expansion and nozzle liquid flow breakthrough safety protection during oil injection, therefore, based on these problems, a shale oil anti-diameter-expanding and anti-blocking self-adjusting intelligent oil nozzle is provided, which takes a static single nozzle and a rotating multi-hole nozzle combination as a core and guarantees anti-breakthrough safety. SUMMARY

[0003] The present application takes a static single nozzle and a rotating multi-hole nozzle combination as a core and guarantees anti-breakthrough safety.

[0004] The present application solves the technical problem by adopting the following technical scheme:

[0005] The shale oil anti-diameter-expanding and anti-blocking self-adjusting intelligent oil nozzle comprises an oil nozzle adjusting bin, an adjusting bin sand prevention liquid channel, and an anti-breakthrough tee joint.

[0006] The adjustable double nozzle comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is internally provided with a first flow channel, the second connecting pipe is internally provided with a plurality of second flow channels, the cross sections of the second flow channels are different, one end of the second connecting pipe is rotatably and sealingly connected with one end of the first connecting pipe, when the second connecting pipe rotates, the second flow channels with different cross sections are respectively communicated with the first flow channel, so that the oil flow is adjusted.

[0007] Further, the anti-breakthrough plug is installed on the surface opposite to the first through port of the anti-breakthrough tee joint.

[0008] Further, the anti-breakthrough plug is installed on the surface opposite to the first through port of the anti-breakthrough tee joint.

[0009] Further, the bottom of the oil nozzle adjusting bin is fixedly provided with a maintenance cover, and the bottom of the maintenance cover is provided with an oil discharge hole.

[0010] Further, the adjustable double nozzle passes through the nozzle mounting bin, and the adjustable double nozzle is fixed and positioned by a spare cap and a positioning pin.

[0011] Further, the sand prevention liquid channel of the adjusting bin comprises an inner sleeve and an outer sleeve, the inner sleeve is located inside the outer sleeve, and the two are fixedly connected, one end of the inner sleeve is fixedly connected with the second connecting pipe, one end of the outer sleeve is fixedly connected with the oil nozzle adjusting bin, and the other end of the outer sleeve is fixedly connected with the first through hole of the anti-penetration tee joint.

[0012] Further, the driving motor is installed on the top of the oil nozzle adjusting bin, and the output end of the driving motor penetrates into the inside of the oil nozzle adjusting bin.

[0013] The advantages and positive effects of the present application are as follows:

[0014] The present application adopts the combination adjustment of static single nozzle and rotary porous nozzle, can realize the full-automatic production control in the shale oil blowout process, the anti-penetration tee joint provides the anti-penetration safety guarantee and liquid flow guiding, and constitutes a shale oil flow constant current automation system. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical solutions of the present application will be further described in detail below in combination with the drawings and embodiments, but it should be known that these drawings are only designed for the purpose of explanation, and therefore, are not regarded as the limitation of the scope of the present application. In addition, unless specifically indicated, these drawings are only intended to conceptually illustrate the structural configuration described herein, and are not necessarily drawn according to the scale.

[0016] Figure 1 The structural schematic diagram of the shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle provided for the embodiments of the present application is shown in the figure.

[0017] Figure 2 The structural schematic diagram of the oil nozzle adjusting bin of the shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle provided for the embodiments of the present application is shown in the figure.

[0018] Figure 3 The partial structural schematic diagram of the oil nozzle adjusting bin of the shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle provided for the embodiments of the present application is shown in the figure.

[0019] Figure 4 The structural schematic diagram of the sand prevention liquid channel of the adjusting bin of the shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle provided for the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0020] First, it should be noted that the following will be specifically described in an exemplary manner the specific structure, features and advantages of the present application, however, all the description is only used for illustration, and should not be understood as any limitation on the present application. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the drawings, can still continue to be combined or deleted between these technical features (or their equivalents), so as to obtain more other embodiments of the present application which can not be directly mentioned herein. In addition, for the sake of simplifying the drawing, the same or similar technical features can only be marked in one place in the same drawing.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is used, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] As shown in Figures 1-4 The shale oil anti-diameter-expanding anti-blocking self-adjusting intelligent oil nozzle provided by the embodiment comprises an oil nozzle adjusting bin 1, an adjusting bin sand prevention liquid channel 2 and a strike-through prevention tee 3. One side of the oil nozzle adjusting bin forms a nozzle mounting bin 4, an adjustable double nozzle 5 is mounted in the nozzle mounting bin, the other side of the oil nozzle adjusting bin is fixedly connected with one end of the adjusting bin sand prevention liquid channel, the other end of the adjusting bin sand prevention liquid channel is fixedly connected with a first port of the strike-through prevention tee, a strike-through prevention plug 6 is mounted at a second port opposite to the first port of the strike-through prevention tee, and an oil liquid direction-changing flow channel 7 is formed at a third port of the strike-through prevention tee, which functions as a flow direction guide to prevent high-pressure liquid flow from striking through the pipe wall.

[0024] The adjustable double nozzle comprises a first connecting pipe 8 and a second connecting pipe 9. A first flow channel 10 is arranged axially through the inside of the first connecting pipe, and a plurality of second flow channels 11 are arranged axially through the inside of the second connecting pipe. The cross sections of the plurality of second flow channels are different. One end of the second connecting pipe is rotatably and sealingly connected with one end of the first connecting pipe. When the second connecting pipe is rotated, the second flow channels with different cross sections are respectively communicated with the first flow channel, so as to realize the adjustment of the oil liquid flow.

[0025] The water wheel (not shown in the figure) is installed on the surface opposite to the first through hole of the anti-penetration tee, and is pushed to rotate by hydraulic pressure, which can effectively avoid the penetration of the plug caused by the direct impact of high-pressure liquid flow, and can also consider that the rotation of the hydraulic drive water wheel can drive the generator to supply power to the battery.

[0026] The driving motor 12 is further included, the output end of the driving motor is provided with a driving gear 13, the second connecting pipe is provided with a passive gear 14, the driving gear is engaged with the passive gear, and the driving motor drives the second connecting pipe to rotate.

[0027] The maintenance cover 15 is fixedly installed at the bottom of the oil nozzle adjusting chamber, and the bottom of the maintenance cover is provided with an oil discharging hole 16.

[0028] The adjustable double-nozzle passes through the nozzle mounting chamber, and is fixed and limited by the spare tightening cap 17 and the positioning pin 18. Figure 3 As shown in the figure, the specific installation mode of the spare tightening cap 17 and the positioning pin 18 is well known to those skilled in the art.

[0029] The sand-proof liquid channel of the adjusting chamber comprises an inner sleeve 19 and an outer sleeve 20, the inner sleeve is located inside the outer sleeve and is in sealing connection with the outer sleeve, one end of the inner sleeve is fixedly connected with the second connecting pipe, and the outer sleeve is located in and fixedly connected with an outer connecting pipe 21, the two ends of the outer connecting pipe are fixedly connected with the oil nozzle adjusting chamber and the first through hole of the anti-penetration tee respectively; the liquid channel is designed to prevent the rebound of the shale oil sprayed out of the nozzle into the oil nozzle adjusting chamber, to prevent the shale oil sand from accumulating and hindering the engagement of the bevel gear and the power transmission; the inner sleeve is connected with the rotating nozzle through a screw thread, two sealing rings are installed on the outer wall of the inner sleeve, and the sealing rings are used to prevent the shale sand from entering the oil nozzle adjusting chamber; the outer sleeve is screw-connected with the outer connecting pipe, which prevents the shale oil sand from rebounding into the oil nozzle adjusting chamber and also plays a role of flow guide.

[0030] The driving motor is installed at the top of the oil nozzle adjusting chamber, and the output end of the driving motor penetrates into the inside of the oil nozzle adjusting chamber.

[0031] In the embodiment, the shell of the oil nozzle adjusting chamber is a round steel main pipe, which is divided into an upper-left-right four-way structure, the four-way structure comprises: one through hole connected with a shale oil out-of-ground oil pipe (which can withstand a pressure of 40 MPa), another through hole connected with the outer sleeve of the sand-proof liquid channel of the adjusting chamber, one through hole at the upper part for fixing an external driving motor and positioning a sealing driving motor output shaft with an umbrella-shaped driving gear, and one through hole at the lower part for assembling and replacing a maintenance cover, and a detachable sealing rotary cover is arranged on the oil discharging hole.

[0032] The main functions and effects of the oil nozzle adjusting chamber are as follows: connecting the high-pressure oil pipe in the oil direction to ensure pressure bearing; installing a double-nozzle positioning device to ensure that the static nozzle does not move and the rotating nozzle rotates stably to prevent wall leakage; positioning the umbrella-shaped driven gear on the rotating nozzle to ensure that the umbrella-shaped driving gear on the transmission shaft and the umbrella-shaped driven gear on the rotating nozzle are tightly engaged to ensure effective driving; positioning the sand prevention liquid channel of the adjusting chamber to prevent the reverse flow of the oil from invading the oil nozzle adjusting chamber; providing space for installing, replacing and repairing components; the center of the maintenance cover has an oil drain hole and a threaded plug, which is used to drain the oil in the chamber before opening the cover to repair and replace the components.

[0033] The above embodiments have been described in detail, but the content described is only the preferred embodiments of the present application and cannot be considered to limit the scope of the present application. Any equivalent changes and improvements made in the scope of the present application should still be attributed to the scope of the present application.

Claims

1. A self-adjusting intelligent nozzle for shale oil production, characterized by: This includes the oil nozzle regulating chamber, the regulating chamber sand-proof fluid channel, and the anti-breakdown tee; The nozzle regulating chamber has a four-way structure. One side of the nozzle regulating chamber forms a nozzle mounting chamber, in which an adjustable double nozzle is installed. The other side of the nozzle regulating chamber is fixedly connected to one end of the sand-proof fluid channel of the regulating chamber. The other end of the sand-proof fluid channel of the regulating chamber is fixedly connected to the first port of the anti-breakdown tee. An anti-breakdown plug is installed at the second port opposite to the first port of the anti-breakdown tee. An oil diversion channel is formed at the third port of the anti-breakdown tee. The adjustable dual nozzle includes a first connecting pipe and a second connecting pipe. The first connecting pipe has an axially extending first flow channel inside, and the second connecting pipe has several axially extending second flow channels inside. The cross-sections of the several second flow channels are different. One end of the second connecting pipe is rotatably and sealingly connected to one end of the first connecting pipe. When the second connecting pipe rotates, the second flow channels with different cross-sections are respectively connected to the first flow channels, thereby realizing the adjustment of the oil flow rate. A water wheel is installed on the surface of the anti-breakdown plug opposite to the first opening of the anti-breakdown tee; A maintenance cover is fixedly installed at the bottom of the oil nozzle regulating chamber, and the bottom of the maintenance cover is provided with an oil drain hole; The sand-proof fluid channel of the regulating chamber includes an inner sleeve and an outer sleeve. The inner sleeve is located inside the outer sleeve and the two are fixedly connected. The end of the second connecting pipe is fixedly connected to one end of the inner sleeve. One end of the outer sleeve is fixedly connected to the oil nozzle regulating chamber, and the other end of the outer sleeve is fixedly connected to the first port of the anti-breakdown tee.

2. The shale oil anti-expansion and anti-clogging self-adjusting intelligent nozzle according to claim 1, characterized in that: It also includes a drive motor, with a drive gear installed at the output end of the drive motor and a driven gear installed on the second connecting pipe. The drive gear meshes with the driven gear to drive the second connecting pipe to rotate.

3. The shale oil anti-expansion and anti-clogging self-adjusting intelligent nozzle according to claim 1, characterized in that: The adjustable dual nozzles pass through the nozzle mounting chamber, and are fixed and limited by a tightening cap and a positioning pin.

4. The shale oil anti-expansion and anti-clogging self-adjusting intelligent nozzle according to claim 2, characterized in that: The drive motor is mounted on top of the nozzle adjustment chamber, and the output end of the drive motor extends into the interior of the nozzle adjustment chamber.

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