CN209324275U - A kind of combination tubing of gas-lift production - Google Patents
A kind of combination tubing of gas-lift production Download PDFInfo
- Publication number
- CN209324275U CN209324275U CN201820618390.2U CN201820618390U CN209324275U CN 209324275 U CN209324275 U CN 209324275U CN 201820618390 U CN201820618390 U CN 201820618390U CN 209324275 U CN209324275 U CN 209324275U
- Authority
- CN
- China
- Prior art keywords
- gas
- inner tube
- tubing
- oil pipe
- combination
- 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.)
- Expired - Fee Related
Links
- 239000000203 mixture Substances 0.000 claims abstract 2
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 31
- 239000012530 fluid Substances 0.000 abstract description 11
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 239000010779 crude oil Substances 0.000 abstract description 2
- 210000002445 nipple Anatomy 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of combination tubings of gas-lift production, its structure is by top connection, oil pipe ontology, inner tube and lower contact composition, a kind of combination tubing of the gas-lift production, its top connection is connected through a screw thread with oil pipe ontology, oil pipe body lower part is connect with lower contact casing threads, at least two minor diameter inner tube is fixed in oil pipe ontology, a kind of combination tubing of the gas-lift production, just as lower plain tubing, G.I.H is connect with several gaslift pipe nipples, after to oil jacket annulus gas injection, gas enters the combination tubing by the gas lift valve of gaslift pipe nipple, gas forms vent plug in combination tubing to be lifted crude oil and migrates upwards along inner tube and each inner tube external series gap, until being given rise to well head, since fluid column is divided into multiple minor diameter fluid columns in combination tubing, when lifting force ratio plain tubing It reduces very much, significantly reduces gas injection rate, improve lifting efficiency, reach than with the better crude output of plain tubing.
Description
Technical field
The utility model relates to oil field gas-lift production oil pipe, specifically a kind of combination tubing of gas-lift production.
Background technique
Currently, gas-lift production only in Central Plains, spit and used on the oil field of the high gas-oil ratio (HGOR)s such as Kazakhstan, Tarim Basin, oil reservoir depth, feature
It is that it is by injecting high pressure gas to oil pipe annular space, first is that wellbore fluid density is reduced, second is that rising expansion shape by gas
Liquid is carried out well head at the vent plug effect of lifting, due to the gravity of fluid column, when gas is formed on vent plug and lifted, under fluid column
It sits, along tube wall to flowing down, vent plug often penetrates fluid column and moves up, and reduces the efficiency of carrying of liquids, increases gas injection rate.
Utility model content
The purpose of this utility model is to provide a kind of combination tubings of gas-lift production, due to being assembled with two in oil pipe
A above minor diameter inner tube, so that the major diameter fluid column that original gas needs to lift, is dispersed into multiple independent minor diameter liquid
Column, gas are easier the lifting of small fluid column, and fluid column rises faster, and the gas pressure of required offer reduces, and lifting force ratio is with general
It is reduced much when oil pipe, significantly reduces gas injection rate, improved lifting efficiency, reach crude output more better than plain tubing,
Improve oil recovery efficiency.
To achieve the above object, the utility model provides the following technical solutions: a kind of combination tubing of gas-lift production, packet
It includes, which is characterized in that its structure is made of top connection, oil pipe ontology, inner tube and lower contact.
Preferably, the combination tubing of a kind of gas-lift production, which is characterized in that its top connection and oil pipe ontology are logical
Threaded connection is crossed, oil pipe body lower part is connected through a screw thread with lower contact, is fixed in oil pipe ontology at least two small straight
Diameter inner tube, length are identical as oil pipe ontology.
Preferably, the combination tubing of a kind of gas-lift production, which is characterized in that the top connection center is drilled with
More than two apertures, hole diameter are less than inner tube outside diameter, can be by oil gas, but inner tube can not fall top connection.
Preferably, the combination tubing of a kind of gas-lift production, which is characterized in that the lower contact center is drilled with
More than two apertures, hole diameter are less than inner tube outside diameter, can be by oil gas, but inner tube can not fall lower contact.
Preferably, the combination tubing of a kind of gas-lift production, which is characterized in that said inner tube can use stainless steel
Pipe, can also other pipes made of other anti-corrosions and material resistant to high temperature.
Compared with prior art, the utility model has the beneficial effects that the utility model in oil pipe due to being assembled with two
A above minor diameter inner tube, so that the major diameter fluid column that original gas needs to lift, is dispersed into multiple independent minor diameter liquid
Column, fluid column rise faster, and required gas injection pressure reduces, and significantly reduces gas injection rate, reaches crude oil more better than plain tubing
Yield improves oil recovery efficiency.
Detailed description of the invention
Fig. 1 is a kind of complete section structure chart of the combination tubing of gas-lift production of the utility model；
Fig. 2 is a kind of A-A sectional view of the combination tubing of gas-lift production of the utility model.
In figure: 1, top connection；2, oil pipe ontology；3, inner tube；4, lower contact.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of combination tubing of gas-lift production, knot
Structure is made of top connection 1, oil pipe ontology 2, inner tube 3 and lower contact 4.
A kind of combination tubing of gas-lift production, top connection 1 are connected through a screw thread with oil pipe ontology 2, oil pipe
2 lower part of ontology is connected through a screw thread with lower contact 4, if being fixed at least two minor diameter inner tube 3 in oil pipe ontology 2.
A kind of combination tubing of gas-lift production, there are two above aperture, apertures for the centre drill of top connection 1
Diameter is less than the outer diameter of inner tube 3, can be by oil gas, but inner tube 3 can not fall top connection 1.
A kind of combination tubing of gas-lift production, there are two above aperture, apertures for the centre drill of lower contact 4
Diameter is less than the outer diameter of inner tube 3, can be by oil gas, but inner tube can not fall lower contact 4.
A kind of combination tubing of gas-lift production, said inner tube 4 is anti-corrosion and material system resistant to high temperature
At preferred forms are to have 4 inner tubes 4 in oil pipe ontology 2.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (1)
1. a kind of combination tubing of gas-lift production, which is characterized in that its structure is by top connection (1), oil pipe ontology (2), inner tube
(3) it is connected through a screw thread with lower contact (4) composition, top connection (1) with oil pipe ontology (2), oil pipe ontology (2) lower part connects under
Head (4) is connected through a screw thread, and is fixed at least two minor diameter inner tube (3), the top connection in oil pipe ontology (2)
(1) there are two above apertures, hole diameter to be less than inner tube (3) outer diameter for centre drill, and there are two the lower contact (4) centre drills
Above aperture, hole diameter are less than inner tube (3) outer diameter, are packed into oil pipe ontology (2) after the inner tube (3) jam-packed, and with
Oil pipe ontology (2) length is identical, and said inner tube (3) is made of the material of corrosion-resistant high-temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618390.2U CN209324275U (en) | 2018-04-27 | 2018-04-27 | A kind of combination tubing of gas-lift production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618390.2U CN209324275U (en) | 2018-04-27 | 2018-04-27 | A kind of combination tubing of gas-lift production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324275U true CN209324275U (en) | 2019-08-30 |
Family
ID=67704692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820618390.2U Expired - Fee Related CN209324275U (en) | 2018-04-27 | 2018-04-27 | A kind of combination tubing of gas-lift production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324275U (en) |
-
2018
- 2018-04-27 CN CN201820618390.2U patent/CN209324275U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |