CN207017982U - Abrasive perforating device is oriented in one kind - Google Patents
Abrasive perforating device is oriented in one kind Download PDFInfo
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- CN207017982U CN207017982U CN201720506990.5U CN201720506990U CN207017982U CN 207017982 U CN207017982 U CN 207017982U CN 201720506990 U CN201720506990 U CN 201720506990U CN 207017982 U CN207017982 U CN 207017982U
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- gun body
- abrasive perforating
- pendulum
- oriented
- gravity
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Abstract
The utility model discloses abrasive perforating device, including the abrasive perforating rifle being connected with oil pipe is oriented in one kind, abrasive perforating rifle is pushed in horizontal well by oil pipe, abrasive perforating rifle includes：Jet assembly, including gun body (3) and nozzle (6), nozzle (6) be provided with it is multiple, respectively at out of phase in the side wall of gun body (3), for sleeve pipe carry out perforation；Upper orientation assembly, including bias pendulum (8) and gravity eccentricity set (5), bias pendulum (8) is in semi-cylindrical, it can be rotated in gun body (3) in gun body, gravity eccentricity set (5) is arranged on the both sides of eccentric pendulum (8), for driving eccentric pendulum (8) to rotate.The utility model meets the needs of oriented perforating in multilayer, and after abrasive perforating, acid fracturing or pressure break are oriented using this tubing string.
Description
Technical field
A kind of petroleum drilling and mining downhole tool is the utility model is related to, more particularly to abrasive perforating process pipe string is oriented in one kind
Device.
Background technology
The exploitation principal contradiction of clastic rock horizontal well is bottom water coning, and High water cut causes oil well low yield poorly efficient.Horizontal Well Drilling
Chance reservoir top physical property is poor, development degree is relatively low.Horizontal well rail can be achieved by carrying out the upwardly-directed injection acidifying of horizontal well
Remaining oil effectively taps the latent power above mark.At present, there are certain technological reserve, but vectored injection technology in terms of horizontal well in segments injection
It is still immature.
The content of the invention
The purpose of this utility model is to provide a kind of upper orientation sandblasting that can carry out sleeve pipe upper orientation abrasive perforating
Perforating system.
To achieve the above object, a kind of concrete technical scheme of upper orientation abrasive perforating device of the present utility model is：
Orient abrasive perforating device in one kind, including the abrasive perforating rifle being connected with oil pipe, by oil pipe by abrasive perforating
Rifle is pushed in horizontal well, and abrasive perforating rifle includes：Jet assembly, including gun body and nozzle, nozzle be provided with it is multiple, point
Wei Yu not be in the side wall of gun body at out of phase, for carrying out perforation to sleeve pipe；Upper orientation assembly, including eccentric pendulum and again
Power eccentric bushing, bias pendulum is in semi-cylindrical, can be rotated in gun body in gun body, gravity eccentricity is set on partially
The both sides of heart pendulum, for driving eccentric rotation to move.
Further, gravity eccentricity set is in semi-cylindrical, and the bottom of gun body is located at by gravity, and drive is placed on gravity
Eccentric pendulum in eccentric bushing is maintained at the bottom of gun body.
Further, the both ends of gun body are connected by top connection with lower contact with oil pipe respectively.
Further, centering ring is provided with top connection.
Further, jet assembly also includes the interior protective jacket being arranged on gun body internal face.
The advantages of orienting abrasive perforating device in one kind of the present utility model is：
1) meet the needs of oriented perforating in multilayer, operation can be carried out in well cementation and non-well cementing casing pipe and screen casing, adopted
After abrasive perforating, acid fracturing or pressure break are oriented using this tubing string；
2) oriented using interior gravity eccentricity, gravity eccentricity pendulum is arranged on bearing, bearing relative closure, with external fluid
Do not exchange, without larger orientation moment of torsion, orientation is accurate, interior gravity eccentricity oriented approach, and orientation action occurs in instrument
Inside, do not influenceed by annular fluid viscosity and sand setting；
3) gravity eccentricity pendulum and spray gun liner use the hard alloy of high rigidity, have the energy that tolerance sand-laden fluid washes away
Power.
Brief description of the drawings
Fig. 1 is the sectional view of upper orientation abrasive perforating rifle of the present utility model；
Fig. 2 is the structural representation of upper orientation abrasive perforating rifle of the present utility model；
Fig. 3 is the structural representation of nozzle of the present utility model；
Fig. 4 is the disassembled form figure of eccentric pendulum of the present utility model and gravity eccentricity set；
Fig. 5 is the coincidence status figure of eccentric pendulum of the present utility model and gravity eccentricity set.
Embodiment
In order to be better understood by the purpose of this utility model, structure and function, below in conjunction with the accompanying drawings, to of the present utility model
Abrasive perforating device is oriented in one kind and does further detailed description.
As shown in Figures 1 to 5, it is shown as orienting abrasive perforating device in one kind of the present utility model, for realizing upper fan
Shape phase orientation abrasive perforating and vectored injection acid fracturing, pressure break, by oil pipe or coiled tubing tripping in, dragging tubing string can carry out more
Section construction.
Upper orientation abrasive perforating device of the present utility model includes the abrasive perforating rifle being connected with oil pipe, will be sprayed by oil pipe
Sand perforating gun is pushed in horizontal well.In addition, abrasive perforating device of the present utility model also includes the supporting instrument of other needs,
Such as safety joint, centralizer, mechanical collar locator, target seeker and underseal etc., it will not be described in detail herein.
Further, abrasive perforating rifle includes jet assembly and upper orientation assembly, wherein, jet assembly includes gun body 3
With nozzle 6, abrasive perforating rifle is provided at both ends with top connection 1, lower contact 9, is respectively used to be connected with oil pipe, is set in top connection 1
Be equipped with centering ring 2, nozzle 6 be provided with it is multiple, respectively at out of phase in the side wall of gun body 3, for abrasive perforating
Sleeve pipe outside rifle carries out perforation.
Upper orientation assembly includes eccentric pendulum 8 and gravity eccentricity set 5, and bias pendulum 8 is arranged in gun body 3, in semicolumn
Shape, it can be rotated in gun body 3, gravity eccentricity set 5 is arranged on the both sides of eccentric pendulum 8, for driving eccentric pendulum 8 to rotate, weight
Power eccentric bushing 5 is in semi-cylindrical, and the reason for because of gravity, gravity eccentricity set 5 remains at the bottoms of gun body 3, and then band
The dynamic eccentric pendulum 8 being placed among gravity eccentricity set 5 also remains at the bottom of gun body 3.When spray of the present utility model
During sand perforating system tripping in well head, the injection direction of nozzle can not determine, still, no matter nozzle is in optional position, bias pendulum 8
Because gravity is always positioned at bottom, therefore the nozzle of spray gun bottom can be sheltered from, only top or nozzle on the side can obtain
Fluid, the effect of vectored injection in realization.
Further, being provided at both ends with for gravity eccentricity set 5 is used to support gravity eccentricity to cover 8 rolling bearings 4.Bearing 4 passes through
Step on gravity eccentricity set 5 blocks, so that bearing 4 does not exchange with construction fluid, is maintained at a relatively closed sky
Interior carry out rolling friction, avoid the ball of the sand jam bearing 4 in load fluid.Because being oriented using interior gravity eccentricity, weight
Power 5 framves of eccentric pendulum the relative closure of bearing 4, do not exchange on bearing 4 with external fluid, therefore, there is no need to too big determine
To moment of torsion, orientation is accurate, interior gravity eccentricity oriented approach, and orientation action occurs in tool interior, not by annular fluid viscosity and
The influence of sand setting.
Further, jet assembly also includes the interior protective jacket 7 being arranged on the internal face of gun body 3, and bias pendulum 8 is prevented with interior
Certain tolerance clearance between sheath 7 be present, in high-pressure injection, inherently in the presence of certain excessively stream, therefore, bias pendulum 8 with
Interior protective jacket 7 uses high rigidity Hardmetal materials, improves tolerance erosion.It is upper due to eccentric pendulum 8 in high pressure infusion
There is larger pressure difference in portion, hydraulic coupling can also force eccentric pendulum 13 downwards, therefore eccentric pendulum 8 will not be sent out in high-pressure injection with bottom
It is raw to swing, ensure the precision of perforation.Wherein, the liner of gravity eccentricity pendulum 8 and gun body 3 is closed using high rigidity hard
Gold, there is the ability that tolerance sand-laden fluid washes away.
Upper orientation abrasive perforating device of the present utility model is adapted to horizontal well, upper fan-shaped orientation abrasive perforating and abrasive perforating
Fracture acidizing operation, after tool combinations enter horizontal segment, upper orientation abrasive perforating rifle does not need spin orientation, upper orientation assembly meeting
Automatically according to gravity eccentricity, the nozzle 6 of fan-shaped phase under spray gun is blocked, fluid can only pass through the nozzle positioned at upper fan-shaped phase
6 spray, so as on sleeve pipe and stratum forms the perforation of fan-shaped phase.
The utility model provides new upper orientation abrasive perforating process pipe string and instrument, meets oriented perforating in multilayer
Need, operation can be carried out in well cementation and non-well cementing casing pipe and screen casing, after abrasive perforating, be oriented using this tubing string
Acid fracturing or pressure break；Oriented using interior gravity eccentricity, gravity eccentricity pendulum is arranged on bearing, bearing relative closure, with outside
Fluid does not exchange, and without larger orientation moment of torsion, orientation is accurate, interior gravity eccentricity oriented approach, and orientation action occurs
Tool interior, do not influenceed by annular fluid viscosity and sand setting；Gravity eccentricity is put and spray gun liner uses the hard of high rigidity
Alloy, there is the ability that tolerance sand-laden fluid washes away.
The utility model is further described by specific embodiment above, it should be understood that, have here
The description of body, should not be construed as the restriction to spirit and scope of the present utility model, and one of ordinary skilled in the art is readding
The various modifications made after reader specification to above-described embodiment, belong to the scope that the utility model is protected.
Claims (5)
1. abrasive perforating device is oriented in one kind, it is characterised in that, will by oil pipe including the abrasive perforating rifle being connected with oil pipe
Abrasive perforating rifle is pushed in horizontal well, and abrasive perforating rifle includes：
Jet assembly, including gun body (3) and nozzle (6), nozzle (6) be provided with it is multiple, respectively positioned at gun body (3)
In side wall at out of phase, for carrying out perforation to sleeve pipe；
Upper orientation assembly, including eccentric pendulum (8) and gravity eccentricity set (5), bias pendulum (8) is in semi-cylindrical, positioned at gun body
(3) can be rotated in gun body, gravity eccentricity set (5) is arranged on the both sides of eccentric pendulum (8), for driving eccentric pendulum (8)
Rotate.
2. upper orientation abrasive perforating device according to claim 1, it is characterised in that gravity eccentricity set (5) is in semicolumn
Shape, the bottom of gun body (3) is located at by gravity, drives the eccentric pendulum (8) being placed in gravity eccentricity set (5) to be maintained at spray
The bottom of gun body (3).
3. upper orientation abrasive perforating device according to claim 1, it is characterised in that the both ends difference of gun body (3)
It is connected by top connection (1) with lower contact (9) with oil pipe.
4. upper orientation abrasive perforating device according to claim 3, it is characterised in that top connection is provided with righting on (1)
Ring (2).
5. upper orientation abrasive perforating device according to claim 1, it is characterised in that jet assembly also includes being arranged on spray
Interior protective jacket (7) on gun body (3) internal face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506990.5U CN207017982U (en) | 2017-05-09 | 2017-05-09 | Abrasive perforating device is oriented in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506990.5U CN207017982U (en) | 2017-05-09 | 2017-05-09 | Abrasive perforating device is oriented in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207017982U true CN207017982U (en) | 2018-02-16 |
Family
ID=61475899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720506990.5U Active CN207017982U (en) | 2017-05-09 | 2017-05-09 | Abrasive perforating device is oriented in one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207017982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267975A (en) * | 2018-08-30 | 2019-01-25 | 中国海洋石油集团有限公司 | A kind of orienting device and tubing string for tubing string |
| CN111350484A (en) * | 2020-03-10 | 2020-06-30 | 中国石油天然气股份有限公司 | Fracturing method for improving single well yield of low-permeability bottom water reservoir horizontal well |
| CN111878047A (en) * | 2020-07-03 | 2020-11-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
-
2017
- 2017-05-09 CN CN201720506990.5U patent/CN207017982U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267975A (en) * | 2018-08-30 | 2019-01-25 | 中国海洋石油集团有限公司 | A kind of orienting device and tubing string for tubing string |
| CN111350484A (en) * | 2020-03-10 | 2020-06-30 | 中国石油天然气股份有限公司 | Fracturing method for improving single well yield of low-permeability bottom water reservoir horizontal well |
| CN111878047A (en) * | 2020-07-03 | 2020-11-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
| CN111878047B (en) * | 2020-07-03 | 2022-06-14 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
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