CN108547601A - A kind of horizontal well hydraulic orientation spray gun - Google Patents

A kind of horizontal well hydraulic orientation spray gun Download PDF

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Publication number
CN108547601A
CN108547601A CN201810566801.2A CN201810566801A CN108547601A CN 108547601 A CN108547601 A CN 108547601A CN 201810566801 A CN201810566801 A CN 201810566801A CN 108547601 A CN108547601 A CN 108547601A
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China
Prior art keywords
orientation
spray gun
envelope
fluid cylinder
upper case
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Granted
Application number
CN201810566801.2A
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Chinese (zh)
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CN108547601B (en
Inventor
迟帅
邱俊人
程欢
韩滔
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JEREH ENERGY SERVICES Co Ltd
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JEREH ENERGY SERVICES Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • E21B43/116Gun or shaped-charge perforators
    • E21B43/118Gun or shaped-charge perforators characterised by lowering in vertical position and subsequent tilting to operating position
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • E21B43/26Methods for stimulating production by forming crevices or fractures

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Nozzles (AREA)

Abstract

The present invention relates to well production increment fracturing work technical fields, spray gun is oriented more particularly to a kind of horizontal well hydraulic, divide tooth fluid cylinder including orientation, envelope set, orient steel ball, thrust bearing and nozzle, orientation divides tooth fluid cylinder to form annular space with top connection, resetting spring is set in annular space, the right part of top connection is connect with upper case, the internal sleeve of upper case is equipped with envelope set, center-pole is connected internally to orientation across envelope set and divides on the internal thread of tooth fluid cylinder right end, upper case, orientation forms a confined space between dividing tooth fluid cylinder and envelope to cover, orientation steel ball is placed in the space, upper case right end is threadedly coupled with connector sleeve, the both ends of connector sleeve are symmetrical arranged thrust bearing, the right end of envelope set is connected on spray gun shell.The present invention can realize that the pressure to spray gun shell is oriented by hydraulic driving mode, and orientation success rate is high, and reusable after tool maintenance, cost is relatively low.

Description

A kind of horizontal well hydraulic orientation spray gun
Technical field
The present invention relates to well production increment fracturing work technical fields, orient and spray more particularly to a kind of horizontal well hydraulic Rifle.
Background technology
In recent years, stimulation work was increasingly becoming the most important job content of oil gas field.Waterpower pressure by hydraulic perforating Split be pressure break principal mode, this operation can further expand oil gas well capacity, improve recovery ratio.It is tested by operation for many years Card, it is very reliable to improve production capacity by hydraulic perforating fracture stimulation operations, and income is high.But part of horizontal well, water Flat section is uneven in vertical direction petroleum distribution, and part direction is there are water layer, once perforation leads to water layer, when pressure break will be by water layer It is linked up with pit shaft, causes oil/gas well to be largely discharged, seriously affect and especially produce.
At present for solves the problems, such as oil reservoirs of horizontal well be unevenly distributed lead to pressure break after be discharged in well, have mechanical oriented perforating With cable type oriented perforating technology.Mechanical oriented perforating tool setting-up eccentricity pouring weight near perforation part, relies in well Gravity realizes that spray gun orients, and such mode is affected by environment in well, and job success ratio is relatively low.Cable type oriented perforating skill Art realizes that well interior orientation, such operating type cost are high by gyroscope.
Invention content
It is an object of the present invention to overcome the above-mentioned technical problems, and to provide a kind of horizontal well hydraulics to orient spray gun, can pass through Borehole pressure, which pushes, realizes that the pressure of perforating gun orients, significant effect, and cost is relatively low.
The technical solution for solving above-mentioned technical problem is as follows:
A kind of horizontal well hydraulic orients spray gun, including orientation divide tooth fluid cylinder, envelope set, orientation steel ball, thrust bearing and Nozzle, orientation divide tooth fluid cylinder to be socketed in inside top connection, and form annular space with top connection, are arranged in the annular space and reset bullet The right part of spring, top connection is connect with upper case, and the internal sleeve of the upper case is equipped with envelope set, and center-pole passes through Envelope set is connected internally to orientation and divides on the internal thread of tooth fluid cylinder right end, and upper case, orientation divide tooth fluid cylinder and envelope set Between form a confined space, place in the space and orient steel ball, the upper case right end is threadedly coupled with connector sleeve, The both ends of the connector sleeve are symmetrical arranged thrust bearing, and the right end of envelope set is threadedly attached in spray gun shell On, several nozzles are set on spray gun shell, spray gun shell right end in the rotation inside rotational shell connector sleeve pass through It is threadedly coupled, forms internal boss in rotational shell and rotation between connector sleeve, two thrusts are set in the internal boss Bearing, the rotational shell right part are connected through a screw thread with lower contact.
It further says, the orientation divides tooth fluid cylinder to be cylindrical structure, and the orientation divides the front end of tooth fluid cylinder 10-16 groove is circumferentially equidistantly opened up as dividing slot gap to be oriented, described divides the length of slot gap to be 5-10cm.
It further says, is provided with envelope in envelope set, the bottom of the envelope is provided with diameter The elongated slot of steel ball entrance can be accommodated.It is rolled into elongated slot convenient for steel ball, final stable orientation.
The beneficial effects of the invention are as follows:
The present invention can realize that the pressure to spray gun shell is oriented by hydraulic driving mode, and orientation success rate is high, tool Reusable after maintenance, cost is relatively low.Spray gun interior elongated slot is covered with envelope when ground is installed to fix as needed.When After tool is lowered into net horizontal section, orientation steel ball under the effect of gravity, rolls down to annular space bottom.Tubing string internal pressure is improved at this time Power, orientation divide tooth fluid cylinder to be moved forward under fluid power promotion, and the steel ball of bottom is fallen into moving process can fall into nearest neighbours Divide in slot gap.Orientation is completed at this time, it is only necessary in movement forward, steel ball is contacted with the envelope inside envelope set, And then push envelope set rotation.Envelope set can drive spray gun shell to rotate, the final orientation for realizing nozzle.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is that the orientation of the present invention divides the structural schematic diagram of tooth fluid cylinder;
Fig. 3 is the envelope wire sheath construction schematic diagram of the present invention;
In figure:1 is top connection, and 2 be resetting spring, and 3 divide tooth fluid cylinder for orientation, and 4 be upper case, and 5 be envelope set, 6 To orient steel ball, bar centered on 7,8 be thrust bearing, and 9 be connector sleeve, and 10 be spray gun shell, and 11 be nozzle, and 12 is outer for rotation Shell, 13 be connector sleeve in rotation, and 14 be lower contact, and 15 is divide slot gap, and 16 be envelope, and 17 be elongated slot.
Specific implementation mode
Embodiment 1:
As shown in Figs. 1-3, a kind of horizontal well hydraulic orients spray gun, including orientation divides tooth fluid cylinder 3, envelope set 5, orientation steel Pearl 6, thrust bearing 8 and nozzle 11, orientation divide tooth fluid cylinder 3 to be socketed in inside top connection 1, and form annular space, annular space with top connection 1 Interior setting resetting spring 2, the right part of top connection 1 are connect with upper case 4, and the internal sleeve of upper case 4 is equipped with envelope set 5, center-pole 7 is connected internally to orientation across envelope set 5 and divides on the internal thread of 3 right end of tooth fluid cylinder, upper case 4, orientation point Form a confined space between tooth fluid cylinder 3 and envelope set 5, place orientation steel ball 6 in the space, 4 right end of upper case and Connector sleeve 9 is threadedly coupled, and the both ends of connector sleeve 9 are symmetrical arranged thrust bearing 8, and the right end of envelope set 5 is threadedly attached in On spray gun shell 10, several nozzles 11 are set on spray gun shell 10,10 right end of spray gun shell with inside rotational shell 12 Rotation in connector sleeve 13 be connected through a screw thread, form internal boss between connector sleeve 13 in rotational shell 12 and rotation, it is internal Two thrust bearings 8 are set in boss, and 12 right part of rotational shell is connected through a screw thread with lower contact 14.
Orientation divide tooth fluid cylinder 3 be cylindrical structure, orientation divide the front end of tooth fluid cylinder 3 circumferentially equidistantly open up 10 it is recessed For slot as dividing slot gap 15 to be oriented, it is 5cm to divide the length of slot gap 15.
Envelope 16 is provided in envelope set 5, the bottom of envelope 16, which is provided with diameter, can accommodate the length of steel ball entrance Slot 17.It is rolled into elongated slot convenient for steel ball, final stable orientation.
Embodiment 2:
A kind of horizontal well hydraulic orientation spray gun, including orientation divide tooth fluid cylinder 3, envelope set 5, orientation steel ball 6, thrust bearing 8 and nozzle 11, orientation divides tooth fluid cylinder 3 to be socketed in inside top connection 1, and forms annular space with top connection 1, in annular space setting reset bullet The right part of spring 2, top connection 1 is connect with upper case 4, and the internal sleeve of upper case 4 covers 5 equipped with envelope, and center-pole 7 passes through Envelope set 5 is connected internally to orientation and divides on the internal thread of 3 right end of tooth fluid cylinder, and upper case 4, orientation divide tooth fluid cylinder 3 and envelope A confined space is formed between line set 5, orientation steel ball 6 is placed in the space, and 4 right end of upper case connects with 9 screw thread of connector sleeve It connecing, the both ends of connector sleeve 9 are symmetrical arranged thrust bearing 8, and the right end of envelope set 5 is threadedly attached on spray gun shell 10, Several nozzles 11,10 right end of spray gun shell and the connector sleeve in the rotation inside rotational shell 12 are set on spray gun shell 10 13 are connected through a screw thread, and form internal boss in rotational shell 12 and rotation between connector sleeve 13, are arranged two in internal boss Thrust bearing 8,12 right part of rotational shell are connected through a screw thread with lower contact 14.
Orientation divide tooth fluid cylinder 3 be cylindrical structure, orientation divide the front end of tooth fluid cylinder 3 circumferentially equidistantly open up 16 it is recessed For slot as dividing slot gap 15 to be oriented, it is 10cm to divide the length of slot gap 15.
Envelope 16 is provided in envelope set 5, the bottom of envelope 16, which is provided with diameter, can accommodate the length of steel ball entrance Slot 17.It is rolled into elongated slot convenient for steel ball, final stable orientation.
Embodiment 3:
A kind of horizontal well hydraulic orientation spray gun, including orientation divide tooth fluid cylinder 3, envelope set 5, orientation steel ball 6, thrust bearing 8 and nozzle 11, orientation divides tooth fluid cylinder 3 to be socketed in inside top connection 1, and forms annular space with top connection 1, in annular space setting reset bullet The right part of spring 2, top connection 1 is connect with upper case 4, and the internal sleeve of upper case 4 covers 5 equipped with envelope, and center-pole 7 passes through Envelope set 5 is connected internally to orientation and divides on the internal thread of 3 right end of tooth fluid cylinder, and upper case 4, orientation divide tooth fluid cylinder 3 and envelope A confined space is formed between line set 5, orientation steel ball 6 is placed in the space, and 4 right end of upper case connects with 9 screw thread of connector sleeve It connecing, the both ends of connector sleeve 9 are symmetrical arranged thrust bearing 8, and the right end of envelope set 5 is threadedly attached on spray gun shell 10, Several nozzles 11,10 right end of spray gun shell and the connector sleeve in the rotation inside rotational shell 12 are set on spray gun shell 10 13 are connected through a screw thread, and form internal boss in rotational shell 12 and rotation between connector sleeve 13, are arranged two in internal boss Thrust bearing 8,12 right part of rotational shell are connected through a screw thread with lower contact 14.
Orientation divide tooth fluid cylinder 3 be cylindrical structure, orientation divide the front end of tooth fluid cylinder 3 circumferentially equidistantly open up 12 it is recessed For slot as dividing slot gap 15 to be oriented, it is 8cm to divide the length of slot gap 15.
Envelope 16 is provided in envelope set 5, the bottom of envelope 16, which is provided with diameter, can accommodate the length of steel ball entrance Slot 17.It is rolled into elongated slot convenient for steel ball, final stable orientation.
The present invention operation principle be:
When ground connects, what the nozzle on spray gun shell was installed as needed has centainly with the upper elongated slot of envelope set Angle correspondence.Steel ball is due to gravity, when pipe string is in horizontal or level of approximation position, under free state always Annular space bottom can be in.When adherence pressure in tubing string, orientation divides tooth fluid cylinder under fluid power promotion, and compressed spring is to Forward It is dynamic.When its front end divides tooth to be moved to steel ball position, steel ball can be promoted in its point of tooth socket closest to bottom.Orientation Point tooth fluid cylinder continues to move along, and steel ball falls and moves dividing in tooth socket.It is connect when it is moved to the envelope covered with envelope When touching, steel ball can push envelope set rotation, until steel ball is fallen into elongated slot.Orientation divides tooth fluid cylinder that can pass through keyway with top connection Locking direction (does not show that in figure, and has bearing before and after rear end envelope set rotary part, frictional force is small, illustrates in steel ball During pushing envelope set rotation, orientation divides tooth fluid cylinder that its direction is kept not rotate, and such steel ball is just constantly in gravity The bottom in direction.) when it falls into elongated slot, elongated slot is at gravity bottom.Because of the spray gun shell when ground is installed On nozzle just with elongated slot setting have certain angle correspondence, so being achieved that hydraulic control nozzle in underground at this time Orientation, then can be carried out orientation perforating and fracturing operation.After the oriented perforating pressure break on this section of stratum is completed.It unloads Fall pressure in tubing string, orientation divides tooth fluid cylinder to return to initial position under the action of the spring.Steel ball has also returned to initial position at this time.After Continuous lower tubular column can carry out next section of oriented perforating fracturing work.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to According to any simple modification, equivalent variations made by above example, each falling within the guarantor of the present invention in the technical spirit of the present invention Within the scope of shield.

Claims (3)

1. a kind of horizontal well hydraulic orients spray gun, which is characterized in that divide tooth fluid cylinder including orientation, envelope set, orientation steel ball, push away Power bearing and nozzle, the orientation divide tooth fluid cylinder to be socketed in inside top connection, and form annular space, the annular space with top connection Interior setting resetting spring, the right part of top connection are connect with upper case, and the internal sleeve of the upper case is equipped with envelope Set, center-pole are connected internally to orientation across envelope set and divide on the internal thread of tooth fluid cylinder right end, and upper case, orientation divide tooth liquid A confined space is formed between cylinder and envelope set, and orientation steel ball, the upper case right end and company are placed in the space Female connector is threadedly coupled, and the both ends of the connector sleeve are symmetrical arranged thrust bearing, and the right end of envelope set passes through screw thread It is connected on spray gun shell, several nozzles, spray gun shell right end and the rotation inside rotational shell is set on spray gun shell Connector sleeve is connected through a screw thread in turning, and internal boss, the internal boss are formed between connector sleeve in rotational shell and rotation Two thrust bearings of interior setting, the rotational shell right part is connected through a screw thread with lower contact.
2. horizontal well hydraulic according to claim 1 orients spray gun, which is characterized in that the orientation divides tooth fluid cylinder to be circle Column structure, the orientation divide the front end of tooth fluid cylinder circumferentially equidistantly open up 10-16 groove as divide slot gap into Row orientation, described divides the length of slot gap to be 5-10cm.
3. horizontal well hydraulic according to claim 1 orients spray gun, which is characterized in that be provided in the envelope set Envelope, the bottom of the envelope, which is provided with diameter, can accommodate the elongated slot of steel ball entrance.
CN201810566801.2A 2018-06-05 2018-06-05 Hydraulic directional spray gun for horizontal well Active CN108547601B (en)

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CN109281640A (en) * 2018-09-28 2019-01-29 中煤科工集团西安研究院有限公司 Horizontal well self- steering hydraulic water power injection apparatus and method
US10895202B1 (en) 2019-09-13 2021-01-19 Bj Energy Solutions, Llc Direct drive unit removal system and associated methods
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