CN207245688U - A kind of adjustable choke for offshore oil production - Google Patents
A kind of adjustable choke for offshore oil production Download PDFInfo
- Publication number
- CN207245688U CN207245688U CN201721215040.3U CN201721215040U CN207245688U CN 207245688 U CN207245688 U CN 207245688U CN 201721215040 U CN201721215040 U CN 201721215040U CN 207245688 U CN207245688 U CN 207245688U
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- CN
- China
- Prior art keywords
- activity cylinder
- oil nozzle
- adjusting activity
- oil
- adjustable choke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of adjustable choke for offshore oil production,Including sequentially connected top connection from top to bottom,Locating piece,Intermediate sleeve,Body and lower contact,Oil nozzle is equipped with the side wall of body,The adjusting activity cylinder being threadedly coupled with it is equipped with body,The sealing nut being threadedly coupled with it is equipped with the upper end of body,The top of sealing nut is assemblied in the outside of adjusting activity cylinder,Sand control baffle ring is equipped between the upper end of sealing nut and adjusting activity cylinder,Two seals are equipped between adjusting activity cylinder and body,Wherein it is arranged on together on oil nozzle,Another road is arranged under oil nozzle,Sealing ring on oil nozzle is located under the screw thread that body is connected with adjusting activity cylinder,The passageway bridge that will be connected above and below body is equipped with the side wall of body,Oil nozzle and passageway bridge area of passage are not less than the area of passage of adjusting activity cylinder.The utility model can be used in offshore oil production.
Description
Technical field
A kind of oil nozzle is the utility model is related to, particularly a kind of adjustable choke for offshore oil production.
Background technology
China's offshore oil production at present is produced in oil well using sliding sleeve switch control hierarchy, and sliding sleeve can be realized out
Close, but do not possess adjustable function, only on and off two states；There is adjustable water nozzle in water injection well, realize that water filling switch is adjusted
Functions such as section, but because its major function be water filling, and Petroleum Production flow direction on the contrary, during another water filling can high pressure inject, therefore one
As water nozzle cross-sectional area it is smaller, influence yield during Petroleum Production, production capacity is smaller, and water filling, which adjusts water nozzle, does not have sand-proof function,
Can be stuck by gravel when oil well delamination produces, regulatory function is influenced, is less applicable in.
The content of the invention
The utility model for solve known technology present in technical problem provide it is a kind of for offshore oil production
Adjustable choke.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：One kind is used for sea
The adjustable choke of upper Petroleum Production, including from top to bottom sequentially connected top connection, locating piece, intermediate sleeve, body and under
Connector, is equipped with oil nozzle on the side wall of the body, the adjusting activity cylinder being threadedly coupled with it is equipped with the body, in institute
The upper end for stating body is equipped with the sealing nut being threadedly coupled with it, and the top of the sealing nut is assemblied in the adjusting activity cylinder
Outside, sand control baffle ring is equipped between the upper end of the sealing nut and the adjusting activity cylinder, in the adjusting activity cylinder
Two seals are equipped between the body, wherein being arranged on together on the oil nozzle, another road is arranged on the oil nozzle
Under, the sealing ring on the oil nozzle is located under the screw thread that the body is connected with the adjusting activity cylinder, in institute
State the passageway bridge for being equipped with the side wall of body and connecting the body up and down, the oil nozzle and the passageway bridge area of passage
It is not less than the area of passage of the adjusting activity cylinder.
The gap of up/down perforation is equipped with the screw thread that the adjusting activity cylinder is connected with the body.
The oil nozzle uses the ellipsoidal structure that major axis is vertically arranged, equipped with two to be symmetrically arranged.
The utility model has the advantages and positive effects of：1) production seating nipple and adjustable choke integrated design are matched somebody with somebody,
The pulling for carrying out adjustable choke is no longer needed to work；2) adjustable choke is docked with the positioning with production seating nipple and oil production is big
Minor adjustment docking is concentric docking, and docking success rate is very high, it is possible to increase work efficiency；3) there is the bridge of larger area of passage
Formula flow channels, when instrument passes through seating nipple, influence other layer of position output smaller；4) there is rational sand control structure, can
Sand card when solving the problems, such as to adjust.
Brief description of the drawings
Fig. 1 is the appearance diagram of the utility model；
Fig. 2 is the structure diagram of the utility model open mode；
Fig. 3 is the structure diagram of the utility model closed mode；
Fig. 4 is the cut-away view that the utility model contains passageway bridge；
Fig. 5 is the structure diagram of the utility model adjusting activity cylinder.
In figure：1st, top connection, 2, locating piece, 3, intermediate sleeve, 4, body, 5, lower contact, 6, adjusting activity cylinder, 7, sand control
Baffle ring, 8, sealing nut, 9, oil nozzle, 10, sealing ring, 11, passageway bridge, 12, gap.
Embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Attached drawing describes in detail as follows：
~Fig. 5, a kind of adjustable choke for offshore oil production are please referred to Fig.1, including is sequentially connected from top to bottom
Top connection 1, locating piece 2, intermediate sleeve 3, body 4 and lower contact 5, oil nozzle 9 is equipped with the side wall of the body 4, in institute
The adjusting activity cylinder 6 for being equipped with body 4 and being threadedly coupled with it is stated, it is close equipped with being threadedly coupled with it in the upper end of the body 4
Nut 8 is sealed, the top of the sealing nut 8 is assemblied in the outside of the adjusting activity cylinder 6, in the upper end of the sealing nut 8
Sand control baffle ring 7 is equipped between the adjusting activity cylinder 6, it is close that twice are equipped between the adjusting activity cylinder 6 and the body 4
Seal 10, wherein being arranged on together on the oil nozzle 9, another road is arranged under the oil nozzle 9, positioned at the oil nozzle 9 it
On sealing ring 10 be located under the screw thread that the body 4 is connected with the adjusting activity cylinder 6, in the side wall of the body 4
Equipped with the passageway bridge 11 for connecting the body about 4, the oil nozzle 9 and 11 area of passage of the passageway bridge are not less than
The area of passage of the adjusting activity cylinder 6.
It is to drive Special regulator to rotate adjusting activity cylinder 6 by cable that the oil production of above-mentioned adjustable choke, which is adjusted, is come
Change the area of passage of oil nozzle, so as to fulfill the adjusting of oil production size.After oil nozzle closure, the sealing positioned at the lower section of oil nozzle 9
Circle, it can be ensured that ne-leakage, ensures that oil nozzle closes completely.
Above-mentioned oil nozzle uses the ellipsoidal structure that major axis is vertically arranged, equipped with two to be symmetrically arranged, effective overcurrent
Area is more than the area of passage of adjusting activity cylinder, is not in Choking phenomenon, in the case where ensureing maximum productivity, realizes
The high-resolution of production fuel-flow control, realizes subdivision and becomes more meticulous oil-producing.
The utility model uses hollow structure, and middle part is TCH test channel, connects oil pipe up and down, is tested easy to other instruments；
Passageway bridge has larger area of passage, when instrument passes through seating nipple, the output of other layer of position is influenced smaller；Can carry out
Multilayer arbitrarily sets, it can be achieved that becoming more meticulous and is required with production；Adjustable bean and with production seating nipple be integrated, there is no oil nozzle
Salvaging problem.It can realize the complete closure function of oil nozzle, be set to carry out pressure testing to tubing string, can be born after oil nozzle closure
The pressure difference of 30MPa.
In the present embodiment, for the ease of adjusting, it is equipped with the screw thread that the adjusting activity cylinder 6 is connected with the body 4
The gap 12 of up/down perforation, the gap 12 of up/down perforation make adjusting activity cylinder 6 bear balance pressure all the time, it is ensured that in High Pressure Difference
Smooth opening under environment.
In application, above-mentioned adjustable choke is with flow string G.I.H, each layer of a set of adjustable choke of correspondence.Drive a well
After production, according to practical condition, for oil increasing precipitation to greatest extent, with banded cable under adjusting instrument to corresponding adjustable
The position of control choke, adjusts oil nozzle aperture, so as to achieve the purpose that to adjust respective layer position Liquid output.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of scope, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (3)
1. a kind of adjustable choke for offshore oil production, it is characterised in that including connecing on sequentially connected from top to bottom
Head, locating piece, intermediate sleeve, body and lower contact, are equipped with oil nozzle on the side wall of the body, in the body be equipped with
Its adjusting activity cylinder being threadedly coupled, the sealing nut being threadedly coupled with it, the sealing spiral shell are equipped with the upper end of the body
The top of cap is assemblied in the outside of the adjusting activity cylinder, is set between the upper end of the sealing nut and the adjusting activity cylinder
There is sand control baffle ring, two seals are equipped between the adjusting activity cylinder and the body, wherein being arranged on the oil together
On mouth, another road is arranged under the oil nozzle, and the sealing ring on the oil nozzle is located at the body and the tune
Under the screw thread of section activity cylinder connection, the passageway bridge that will be connected above and below the body, institute are equipped with the side wall of the body
State the area of passage that oil nozzle and the passageway bridge area of passage are not less than the adjusting activity cylinder.
2. the adjustable choke according to claim 1 for offshore oil production, it is characterised in that live in described adjust
The screw thread that dynamic cylinder is connected with the body is equipped with the gap of up/down perforation.
3. the adjustable choke according to claim 1 for offshore oil production, it is characterised in that the oil nozzle uses
The ellipsoidal structure that major axis is vertically arranged, equipped with two to be symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215040.3U CN207245688U (en) | 2017-09-21 | 2017-09-21 | A kind of adjustable choke for offshore oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215040.3U CN207245688U (en) | 2017-09-21 | 2017-09-21 | A kind of adjustable choke for offshore oil production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245688U true CN207245688U (en) | 2018-04-17 |
Family
ID=61886277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721215040.3U Active CN207245688U (en) | 2017-09-21 | 2017-09-21 | A kind of adjustable choke for offshore oil production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207245688U (en) |
-
2017
- 2017-09-21 CN CN201721215040.3U patent/CN207245688U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |