CN104405301B - A kind of natural gas well frozen block prevents and treats flow string - Google Patents
A kind of natural gas well frozen block prevents and treats flow string Download PDFInfo
- Publication number
- CN104405301B CN104405301B CN201410492188.6A CN201410492188A CN104405301B CN 104405301 B CN104405301 B CN 104405301B CN 201410492188 A CN201410492188 A CN 201410492188A CN 104405301 B CN104405301 B CN 104405301B
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- CN
- China
- Prior art keywords
- tubule
- frozen block
- natural gas
- gas well
- aerogenesis
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
Abstract
Flow string is prevented and treated the invention discloses a kind of natural gas well frozen block, the inhibitor is received at the injection pump by tubule, and the inhibitor is imported to the frozen block point of the aerogenesis tubing string by ball-and-seat, inhibitor can be directly injected into the frozen block point of flow string from well head, it will not be diluted and be disperseed, it is thus possible to ensure that it effectively utilizes the effect prevented and treated with frozen block.
Description
Technical field
The present invention relates to oil and gas exploration technical field, more particularly to a kind of natural gas well frozen block prevents and treats production pipe
Post.
Background technology
At present, each oil field typically solves the hydration of gas production by the way of wellhead casing pipe is continuously injected into inhibitor
Thing frozen block, its inhibitor is to enter through flow string bottom in tubing string, then on return to frozen block point and play a role, thus before this can be
Diluted and disperseed in sleeve pipe and flow string, influence it effectively to utilize and frozen block prevention effect.
The content of the invention
The technical problems to be solved by the invention are that existing tubing string can cause the dilution of inhibitor and disperse, and then are influenceed
The frozen block prevention effect of inhibitor.Therefore, the present invention provides a kind of natural gas well frozen block preventing and treating flow string, original for replacing
Tubing string, prevent from suppressing dilution agent and scattered.
In order to solve the above technical problems, flow string is prevented and treated the invention provides a kind of natural gas well frozen block, including：
Aerogenesis tubing string, bottom is horn mouth, and top is arranged on natural gas well head, and the aerogenesis tubing string has frozen block point；
Packer, and aerogenesis tubing string connection, for insulating the flow string；
Ball-and-seat, installed in the frozen block point of the aerogenesis tubing string, the flow direction for controlling inhibitor；
Tubule, the tubule lower end is connected with the ball-and-seat, and the tubule upper end is with being arranged on the natural gas well head
The injection pump at place is connected, wherein, the tubule is arranged at the generating tube column outer wall, wherein, the tubule is used for from the note
Enter and the inhibitor is received at pump, and the inhibitor is imported to the frozen block point of the aerogenesis tubing string by ball-and-seat.
It is preferred that, the outer wall of the aerogenesis tubing string has is provided with fixing card at box cupling, the box cupling；The tubule passes through
The fixing card is fixed at the box cupling.
It is preferred that, the tubule is metal coiled tubing.
It is preferred that, the tubule is steel alloy coiled tubing.
It is preferred that, the tubule is non metal continuous oil pipe.
It is preferred that, the tubule is carbon steel coiled tubing.
It is preferred that, the tubule is the fiberglass coiled tubing with reinforcing mat or the plastics coiled tubing with reinforcing mat.
One or more technique effect of the present invention is as follows：
A kind of natural gas well frozen block preventing and treating flow string that the present invention is provided, institute is received by tubule at the injection pump
Inhibitor is stated, and the inhibitor is imported into the frozen block point of the aerogenesis tubing string by ball-and-seat, be able to will directly be suppressed from well head
Agent is injected into the frozen block point of flow string, will not be diluted and disperseed, it is thus possible to ensure that it is effectively prevented and treated using with frozen block
Effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of the natural gas well frozen block preventing and treating flow string disclosed in the embodiment of the present invention.
Brief description of the drawings：Pump 1, well head 2, box cupling 3, fixing card 4, aerogenesis tubing string 5, packer 7, horn mouth 8, tubule 9.
Embodiment
Flow string is prevented and treated the invention provides a kind of natural gas well frozen block, including：
Aerogenesis tubing string 5, bottom is horn mouth 8, and top is arranged on natural gas well head, and aerogenesis tubing string 5 has frozen block point.
Packer 7 and aerogenesis tubing string 5 are connected, for insulating the flow string.
A ball-and-seat 6 is installed at the frozen block point of aerogenesis tubing string 5, the flow direction for controlling inhibitor.
Tubule 9, the lower end of tubule 9 is connected with ball-and-seat 6, the upper end of tubule 9 and the injection being arranged at the natural gas well head
Pump 1 is connected, wherein, the tubule 9 is parallel to the outer wall of aerogenesis tubing string 5.Wherein, tubule 9 is used at injection pump 1 receive institute
Inhibitor is stated, and the inhibitor is imported to the frozen block point of the aerogenesis tubing string 5 by ball-and-seat 6.
In addition, the outer wall of aerogenesis tubing string 5 has is provided with fixing card 4 at box cupling 3, the box cupling 3.
Tubule 9 is to be positioned at by the fixing card 4 at its box cupling 3 on the outer tube wall of flow string 5.
Optionally, tubule 9 can be the plain tubing of small diameter, or carbon steel coiled tubing, steel alloy be continuously oily
Pipe, metal coiled tubing, the fiberglass coiled tubing with reinforcing mat, the plastics coiled tubing with reinforcing mat.
The natural gas well frozen block preventing and treating flow string operation principle and application method be：First according to natural gas well frozen block point
Depth determines that ball-and-seat 6, in the position of aerogenesis tubing string 5, then processes the salable of capillary 9 on the casing flange of its well head 2
Through hole；Just capillary 9 can be accessed when instantly at ball-and-seat 6, capillary 9 can be according to reality by design data tripping in aerogenesis tubing string 5
Border needs to select plain tubing, and carbon steel, steel alloy coiled tubing or fiberglass coiled tubing, band with reinforcing mat also may be selected
The plastics coiled tubing of reinforcing mat, and corresponding working equipment, while tripping in aerogenesis tubing string 5 and capillary 9；Tripping in is completed
Draw, and be connected with injection pump 1 in the salable through hole for processing capillary 9 from casing flange when installing well head 2 afterwards.Naturally
Inhibitor from injection pump 1 during gas well liquid loading can then be directly injected into the jelly of aerogenesis tubing string 5 by capillary 9 and ball-and-seat 6
At stifled point, it will not be diluted and be disperseed, it is thus possible to ensure that it effectively utilizes the effect prevented and treated with frozen block.
One or more technique effect of the present invention is as follows：
A kind of natural gas well frozen block preventing and treating flow string that the present invention is provided, directly can be injected into life from well head by inhibitor
The frozen block point of tubing string is produced, will not be diluted and disperseed, it is thus possible to ensures that it effectively utilizes the effect prevented and treated with frozen block.
It should be noted last that, above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (5)
1. a kind of natural gas well frozen block prevents and treats flow string, it is characterised in that including：
Aerogenesis tubing string, bottom is horn mouth, and top is arranged on natural gas well head, and the aerogenesis tubing string has frozen block point；The aerogenesis
The outer wall of tubing string has is provided with fixing card at box cupling, the box cupling；Tubule is fixed at the box cupling by the fixing card；
Packer, and aerogenesis tubing string connection, for insulating the flow string；
Ball-and-seat, installed in the frozen block point of the aerogenesis tubing string, the flow direction for controlling inhibitor；
Tubule, the tubule lower end is connected with the ball-and-seat, and the tubule upper end is with being arranged at the natural gas well head
Injection pump is connected, wherein, the tubule is arranged at the generating tube column outer wall, wherein, the tubule is used for from the injection pump
Place receives the inhibitor, and the inhibitor is imported to the frozen block point of the aerogenesis tubing string by ball-and-seat.
2. natural gas well frozen block as claimed in claim 1 prevents and treats flow string, it is characterised in that the tubule is that metal is continuous
Oil pipe.
3. natural gas well frozen block as claimed in claim 2 prevents and treats flow string, it is characterised in that the tubule connects for steel alloy
Continuous oil pipe.
4. natural gas well frozen block as claimed in claim 2 prevents and treats flow string, it is characterised in that the tubule connects for carbon steel
Continuous oil pipe.
5. natural gas well frozen block as claimed in claim 2 prevents and treats flow string, it is characterised in that the tubule is band reinforcing mat
Fiberglass coiled tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492188.6A CN104405301B (en) | 2014-09-23 | 2014-09-23 | A kind of natural gas well frozen block prevents and treats flow string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492188.6A CN104405301B (en) | 2014-09-23 | 2014-09-23 | A kind of natural gas well frozen block prevents and treats flow string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104405301A CN104405301A (en) | 2015-03-11 |
| CN104405301B true CN104405301B (en) | 2017-11-07 |
Family
ID=52642958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492188.6A Active CN104405301B (en) | 2014-09-23 | 2014-09-23 | A kind of natural gas well frozen block prevents and treats flow string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405301B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984909B (en) * | 2019-11-21 | 2022-02-18 | 西安安森智能仪器股份有限公司 | Automatic anti-freezing method and system for natural gas wellhead external pipeline |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2302513C2 (en) * | 2004-05-17 | 2007-07-10 | Открытое акционерное общество "Акционерная нефтяная компания "Башнефть" | Method for reagent injection in well |
| RU2388905C1 (en) * | 2008-11-18 | 2010-05-10 | Закрытое акционерное общество "Алойл" | Method of preparation and supply of liquid-gas mixture to bed |
| RU2445450C2 (en) * | 2010-02-24 | 2012-03-20 | Республиканское Унитарное Предприятие "Производственное Объединение "Белоруснефть" | Oil production method, and valve device for its implementation |
| RU2464409C1 (en) * | 2011-04-07 | 2012-10-20 | Ильдар Зафирович Денисламов | Method of feeding reagent into well tubing |
| CN102444396B (en) * | 2012-01-04 | 2016-08-03 | 李向东 | A kind of natural gas production method |
| CN203626623U (en) * | 2013-11-08 | 2014-06-04 | 中国石油天然气股份有限公司 | Natural gas well annulus protection oil casing with self-sealing capacity |
-
2014
- 2014-09-23 CN CN201410492188.6A patent/CN104405301B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104405301A (en) | 2015-03-11 |
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