CN115110916A - Pressure-adjustable vortex tube - Google Patents
Pressure-adjustable vortex tube Download PDFInfo
- Publication number
- CN115110916A CN115110916A CN202210878043.4A CN202210878043A CN115110916A CN 115110916 A CN115110916 A CN 115110916A CN 202210878043 A CN202210878043 A CN 202210878043A CN 115110916 A CN115110916 A CN 115110916A
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- CN
- China
- Prior art keywords
- outer tube
- tube body
- spring
- pressure
- well
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- Pending
Links
- 239000004568 cement Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 4
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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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)
- Cyclones (AREA)
Abstract
The invention discloses a pressure-adjustable cyclone tube, which comprises an outer tube body, wherein the head part of the outer tube body is provided with an upper joint, the tail part of the outer tube body is provided with a lower joint, a spring pressure plate, an adjusting spring and a spring tray are sequentially arranged in the outer tube body from top to bottom, the spring pressure plate and the spring tray both extrude the adjusting spring, the upper joint is provided with a detachable connecting floating hoop, the lower joint is provided with a detachable tail pipe, and the tail end of the tail pipe is provided with a guide shoe. The adjustable cyclone tube solves the problems of low well cementation success rate, increased construction procedures and poor well cementation quality caused by easy blockage of the float shoe in the well cementation process of the slim hole well, and greatly improves the well cementation quality and success rate of the slim hole well.
Description
Technical Field
The invention relates to an oil extraction tool, in particular to a pressure-adjustable cyclone tube.
Background
Cementing is the construction of running a casing into the well and injecting cement into the annular space between the wellbore and the casing. Is an indispensable important link in the process of drilling and completing operations, and comprises casing running and cementing. When the casing is put, the bottommost part of the casing string is provided with a floating shoe, so that the function of guiding the casing string to smoothly run into the well along the well shaft and providing a cement flow channel is achieved. When normal well cementation is carried out, cement slurry returns to the well wall and the annular space of the casing from the inside of the casing through the floating shoes, and after the designed height is reached, the pump is stopped and the cement is waited for coagulation, so that the well cementation is completed.
However, in the actual cementing process, especially in a slim hole well, the cementing float shoe is easily blocked and cannot establish normal circulation due to the influence of the well depth and the stratum, especially in a unconsolidated stratum. Therefore, the well can be fixed only after the channel is reestablished by perforating on the casing, and a small-size drilling tool is required to sweep the plug after the well is fixed, so that not only are additional tools added, but also the well fixing quality of a target layer can not be ensured easily.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art, and provides a pressure-adjustable swirl tube.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a cyclone tube with adjustable pressure, a serial communication port, cyclone tube with adjustable pressure contain an outer tube body, the head of outer tube body be equipped with an upper joint, the afterbody of outer tube body be equipped with a lower joint, the outer tube body in to last and be equipped with a spring pressure disk, an adjusting spring and a spring tray down in proper order, spring pressure disk and spring tray all extrude adjusting spring, the upper joint on be equipped with a detachable and connect the float collar, the lower joint on be equipped with a detachable tail pipe, the end of tail pipe be equipped with an guide shoe.
As a preferred embodiment of the present invention, the sidewall of the outer tube body is provided with a plurality of holes for cement slurry to flow.
As a preferred embodiment of the present invention, the spring tray is fixedly connected to the outer tube body by a plurality of pins, and the pins are uniformly distributed on the circumference of the outer tube body.
The pressure adjustable cyclone tube has the following advantages: the adjustable cyclone tube solves the problems of low success rate of well cementation, increased construction procedures and poor well cementation quality caused by easy blockage of the float shoe in the process of well cementation of a slim-hole well. When a small well is cased in a well, the cyclone pipe is put between the tail pipe and the upper floating hoop, so that circulation can be established during well cementation, and conventional turbulent flow well cementation is adjusted into horizontal push layer flow well cementation according to the change of a liquid column of the pressure-adjustable cyclone, so that the small well cementation quality and success rate are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a pressure-adjustable swirl tube according to the present invention;
FIG. 2 is a schematic view of the installation of the pressure adjustable swirl tube of FIG. 1.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1, the pressure-adjustable cyclone tube 23 includes an outer tube body 14, an upper joint 11 is disposed at a head of the outer tube body 14, a lower joint 17 is disposed at a tail of the outer tube body 14, a spring pressure plate 12, an adjusting spring 13 and a spring tray 15 are sequentially disposed in the outer tube body 14 from top to bottom, the spring pressure plate 12 and the spring tray 15 both press the adjusting spring 13, a detachable connection float collar 22 is disposed on the upper joint 11, a detachable tail tube 24 is disposed on the lower joint 17, and a guide shoe 25 is disposed at a tail end of the tail tube 24.
The sidewall of the outer tube body 14 is provided with a plurality of holes 141 for flowing cement slurry.
The spring tray 15 is fixedly connected with the outer tube body 14 through a plurality of pins 16, and the pins 16 are uniformly distributed on the circumference of the outer tube body 14.
It should be noted that, in the following description,
the spring pressure plate 12 plays a role of compressing the adjusting spring 13 at the upper end, and when the displacement or the pressure becomes large, the adjusting spring 13 is pressed, and the irregular shape is relaxed.
The adjusting spring 1 can adjust the exposed length of the swirl tube hole under different pressures. The adjusting spring 13 is 600mm long in a natural state and 500mm long in an installation. When the flow or pressure rises, the regulating spring 13 is compressed and the outer tubular body 14 exposes more orifices 141, ensuring a clear passage.
The outer tube body 14 is a cyclone tube body, and has a length of 500mm and a wall thickness of 6.5 mm. The upper part of the outer tube body 14 is internally thickened, the wall thickness is 7.5mm, and the upper part of the outer tube body is used as a limiting device of the spring pressing plate 12. The holes 141 in the outer tube body 14 provide a flow path for the cement slurry and the number of holes varies with the length of the adjustment spring 13.
The spring tray 15 serves to support the adjusting spring 13 at the lower end thereof, and is connected to the outer tube body 14 by a pin 16. These pins 16, which serve to connect the outer tubular body 14 with the spring tray 15, are 4 pins in total, out of phase by 90 °. The shearing pressure of a single pin is usually set to be 10MPa, and different settings can be carried out according to different well conditions.
The following describes the operation of the pressure-adjustable cyclone tube, as shown in fig. 2, including the steps of:
(1) in the well cementation process, firstly, a guide shoe 25 and a tail pipe 24 are put into the well wall 21;
(2) the pressure-adjustable cyclone tube 23 is put into the upper part of the tail tube 24;
(3) a floating hoop 22 is arranged below the upper part of the adjustable cyclone tube 23;
(4) continuing to put the casing string to a preset depth;
(5) displacing the cement paste to a designed position;
(6) closing the well and waiting for coagulation.
The adjustable cyclone tube solves the problems of low success rate of well cementation, increased construction procedures and poor well cementation quality caused by easy blockage of the float shoe in the process of well cementation of a slim-hole well. When the small well is cased, the cyclone pipe is put between the tail pipe and the upper float collar, so that the circulation can be established during well cementation, and the conventional turbulent flow well cementation can be adjusted into the horizontal push layer flow well cementation according to the change of a liquid column of the pressure adjustable cyclone, so that the small well cementation quality and success rate are greatly improved.
Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (3)
1. The utility model provides a cyclone tube with adjustable pressure, characterized in that, cyclone tube (23) with adjustable pressure contain an outer tube body (14), the head of outer tube body (14) be equipped with one top connection (11), the afterbody of outer tube body (14) be equipped with a connector (17), outer tube body (14) in to last and be equipped with one spring pressure disk (12), an adjusting spring (13) and a spring tray (15) down in proper order, spring pressure disk (12) and spring tray (15) all extrude adjusting spring (13), top connection (11) on be equipped with a detachable and connect float hoop (22), bottom connection (17) on be equipped with a detachable tail pipe (24), the end of tail pipe (24) be equipped with a guide shoe (25).
2. The pressure-adjustable swirl tube of claim 1, wherein the sidewall of the outer tube body (14) is provided with a plurality of holes (141) for flowing cement slurry.
3. The pressure-adjustable swirl tube of claim 1, wherein the spring plate (15) is fixedly connected to the outer tube body (14) by a plurality of pins (16), and the pins (16) are uniformly distributed in the circumferential direction of the outer tube body (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210878043.4A CN115110916A (en) | 2022-07-25 | 2022-07-25 | Pressure-adjustable vortex tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210878043.4A CN115110916A (en) | 2022-07-25 | 2022-07-25 | Pressure-adjustable vortex tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115110916A true CN115110916A (en) | 2022-09-27 |
Family
ID=83334966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210878043.4A Pending CN115110916A (en) | 2022-07-25 | 2022-07-25 | Pressure-adjustable vortex tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115110916A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051958A (en) * | 1989-11-08 | 1991-06-05 | 哈利伯顿公司 | Casing valve |
| CN2246191Y (en) * | 1996-01-15 | 1997-01-29 | 康丽华 | Multifunctional well cementation cement filling appts. |
| CN201292815Y (en) * | 2008-11-03 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Floating shoes for cementing oil well |
| CN203742544U (en) * | 2014-04-02 | 2014-07-30 | 成都杜特威石油科技有限公司 | Well cementing device for ultrasonically processing downhole hydraulic pulse coupled concrete slurry |
| CN206458408U (en) * | 2016-12-28 | 2017-09-01 | 中国石油天然气股份有限公司 | Backwash valve capable of backwashing, blocking removal and sand prevention |
| CN108119093A (en) * | 2017-12-06 | 2018-06-05 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | Well cementation casing automatic grouting equipment |
| CN208502702U (en) * | 2018-05-08 | 2019-02-15 | 中国石油化工股份有限公司 | A kind of shunt nipple |
| CN110043223A (en) * | 2019-05-15 | 2019-07-23 | 常熟市石油固井工具有限公司 | A kind of grouting type variable float collar float shoe device certainly |
| CN210919184U (en) * | 2019-10-23 | 2020-07-03 | 重庆远博机械有限公司 | Filter bypass valve capable of adjusting flow |
| CN111794723A (en) * | 2020-07-20 | 2020-10-20 | 中国石油化工股份有限公司 | Side drilling small casing well cementation method |
| CN113090224A (en) * | 2019-12-23 | 2021-07-09 | 中国石油天然气股份有限公司 | Guide shoe for well cementation and expansion suspension well cementation tubular column |
| CN113833441A (en) * | 2021-09-28 | 2021-12-24 | 宋玉峰 | Oilfield water injection well water distributor with adjustable flow and use method thereof |
-
2022
- 2022-07-25 CN CN202210878043.4A patent/CN115110916A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051958A (en) * | 1989-11-08 | 1991-06-05 | 哈利伯顿公司 | Casing valve |
| CN2246191Y (en) * | 1996-01-15 | 1997-01-29 | 康丽华 | Multifunctional well cementation cement filling appts. |
| CN201292815Y (en) * | 2008-11-03 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Floating shoes for cementing oil well |
| CN203742544U (en) * | 2014-04-02 | 2014-07-30 | 成都杜特威石油科技有限公司 | Well cementing device for ultrasonically processing downhole hydraulic pulse coupled concrete slurry |
| CN206458408U (en) * | 2016-12-28 | 2017-09-01 | 中国石油天然气股份有限公司 | Backwash valve capable of backwashing, blocking removal and sand prevention |
| CN108119093A (en) * | 2017-12-06 | 2018-06-05 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | Well cementation casing automatic grouting equipment |
| CN208502702U (en) * | 2018-05-08 | 2019-02-15 | 中国石油化工股份有限公司 | A kind of shunt nipple |
| CN110043223A (en) * | 2019-05-15 | 2019-07-23 | 常熟市石油固井工具有限公司 | A kind of grouting type variable float collar float shoe device certainly |
| CN210919184U (en) * | 2019-10-23 | 2020-07-03 | 重庆远博机械有限公司 | Filter bypass valve capable of adjusting flow |
| CN113090224A (en) * | 2019-12-23 | 2021-07-09 | 中国石油天然气股份有限公司 | Guide shoe for well cementation and expansion suspension well cementation tubular column |
| CN111794723A (en) * | 2020-07-20 | 2020-10-20 | 中国石油化工股份有限公司 | Side drilling small casing well cementation method |
| CN113833441A (en) * | 2021-09-28 | 2021-12-24 | 宋玉峰 | Oilfield water injection well water distributor with adjustable flow and use method thereof |
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