CN201778776U - Reverse double-helix centrifugal injection downhole choke - Google Patents
Reverse double-helix centrifugal injection downhole choke Download PDFInfo
- Publication number
- CN201778776U CN201778776U CN2010205051420U CN201020505142U CN201778776U CN 201778776 U CN201778776 U CN 201778776U CN 2010205051420 U CN2010205051420 U CN 2010205051420U CN 201020505142 U CN201020505142 U CN 201020505142U CN 201778776 U CN201778776 U CN 201778776U
- Authority
- CN
- China
- Prior art keywords
- reverse double
- double helix
- helix centrifugal
- production
- centrifugal atomization
- 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 - Lifetime
Links
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 239000004576 sand Substances 0.000 claims abstract description 14
- 238000009690 centrifugal atomisation Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000003345 natural gas Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000002343 natural gas well Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Special Spraying Apparatus (AREA)
Abstract
The reverse double helix centrifugal jet downhole choke is applied to the production of natural gas produced in oil and gas fields. The upper end of the sand control device is connected with a reverse double-helix centrifugal ejector, the upper end of the reverse double-helix centrifugal ejector is connected with a sealing rubber cylinder, the upper end of the sealing rubber cylinder is connected with a throttle, the upper end of the throttle is connected with a setting slip, and the upper end of the setting slip is connected with a throttle air tap fishing head. The effect is as follows: in a natural gas well, liquid carried by natural gas can be effectively crushed; in the later stage of gas well production, the blocking effect of the throttling nozzle can be effectively reduced. The shaft throttling operation device can be used in different production stages of a gas well in a stable production period, a decreasing period, a low production period and a water production period.
Description
Technical field
The utility model relates to oil gas field production gas technology field, and particularly a kind of downhole choke device of gas production is a kind of natural gas well pit shaft restriction choke.
Background technology
At present, the downhole choke technology is that hypotonic gas field reduces the surface pipeline network operating pressure, reduces the key technology of the whole investment in gas field.Yet, along with the gas well number is on the increase, when gas well enters low pressure, low yield stage, the throttling action of underground throttle device can hinder gas flow, hinder the ordinary production of gas well, the bigger gas well of aquifer yield particularly, not only make conventional foam water pumping gas production be difficult to effectively carry out, and the very little throttling valve in aperture can hinder air-flow and takes liquid band water, make the pit shaft hydrops, perhaps smash the foam that bubble row forms, perhaps the foam of being annotated by the oil jacket annular space stops up the restriction choke mouth, thereby influences the lasting production of gas well.
The utility model content
The purpose of this utility model is: a kind of reverse double helix centrifugal atomization underground throttle device is provided, realizes gas well production later stage throttling gas production production, solve a gas well water pumping gas production difficult problem.
The technical solution adopted in the utility model is: reverse double helix centrifugal atomization underground throttle device, mainly by sand control device 1, oppositely double helix centrifugal atomization device 2, cartridge 3, restriction choke 4, set slips 5 and throttling valve fishing head 6 is formed, it is characterized in that: connect reverse double helix centrifugal atomization device 2 in the upper end of sand control device 1, oppositely the upper end of double helix centrifugal atomization device 2 connects cartridge 3, the upper end of cartridge 3 connects restriction choke 4, the upper end connection of restriction choke 4 sets slips 5, and the upper end that sets slips 5 connects throttling valve fishing head 6.
Compound steel silk screen pack and a sand cap are arranged in the described sand control device 1.
Oppositely double helix centrifugal atomization device is divided in the external screw thread taper two kinds of shaft type blade screw thread ejectors and taper inside groove internal thread ejector, mainly be by two reverse tapered thread blades up and down, gas is formed the eddy current fluidised form twice, the entrained drop of gas is smashed by centrifugal force.Oppositely double helix centrifugal atomization device can effectively make up, and according to the assembling of one-way spiral ejector, also can improve the compliance of different production fluid amount gas wells by shaft type blade screw thread ejector in the external screw thread taper and the assembling of taper inside groove internal thread ejector; Cartridge is used for whole restriction choke setting and slip-off preventing at pit shaft; Restriction choke is used for fastening restriction choke valve, and ordinary production plays a protective role, and the throttling valve is fixed, and when the throttling valve hinders gas well production, by throttling valve fishing head the throttling valve is salvaged pit shaft, effectively discharges the throttling valve; Throttling valve fishing head is made up of the fishing device head of two various outer diameters, can salvage throttling valve or whole reverse double helix centrifugal atomization underground throttle device respectively.
Oppositely double helix centrifugal atomization underground throttle device sets, and throttling valve or the salvaging of restriction choke integral replacing, is to be implemented by steel wire for logging.When oppositely double helix centrifugal atomization underground throttle device is thrown in, dispensing device is connected with pin with restriction choke raising integrally device, when restriction choke is lowered into the precalculated position, shaft bottom, on carry steel wire for logging, restriction choke sets slips and struts and be stuck on the tubing wall, and cartridge 3 realizes sealing simultaneously.The salvaging of throttling valve is salvaged with little internal diameter fishing socket, and when fishing socket was caught throttling valve fishing head, the nutation impulse force drove the restriction choke action, realized the deblocking of throttling valve.Reverse double helix centrifugal atomization underground throttle device raising integrally, catch restriction choke throttling valve fishing head with the large diameter fishing socket, catch throttling valve fishing head at fishing socket, set slips and cartridge deblocking, realize reverse double helix centrifugal atomization underground throttle device raising integrally.
The beneficial effects of the utility model: the reverse double helix centrifugal atomization of the utility model underground throttle device, (1) can effectively smash liquid that natural gas is taken, during by the throttling valve, further atomizing, thus improve the air-flow fluid-carrying capability; (2) produce the later stage at gas well, the throttling air valve device is salvaged pit shaft, effectively reduce the inhibition of flow nipple.Leaving over the reverse double helix centrifugal atomization device that sets at pit shaft can continue liquid that air-flow is taken is smashed; Do not influence the enforcement of oil pipe inner foam water drainage-gas recovery technology.(3) can satisfy gas well in stable production period, decline period, low term, and produce the pit shaft throttling apparatus for work that the different production phases of water phase use.(4) be applicable to the gas wells that produce different product water scopes such as aqueous vapor well at little liquid producing well, high yield well, intermittence, can be used for the draining that high-pressure gas well, deep-well etc. produce wells.(5) for the higher gas well of aquifer yield, can be used for gas well water pumping gas production operation with at the bottom of the package unit lower going-into-well not with the throttling valve.
Description of drawings
Fig. 1 is the reverse double helix centrifugal atomization of a utility model underground throttle device structural profile schematic diagram.
Among the figure, 1. sand control device, 2. reverse double helix centrifugal atomization device, 3. cartridge, 4. restriction choke 5. sets slips, 6. throttling valve fishing head.
The specific embodiment
Embodiment 1: with a reverse double helix centrifugal atomization underground throttle device is example, and the utility model is described in further detail.
Consult Fig. 1.The reverse double helix centrifugal atomization of the utility model underground throttle device, by sand control device 1, oppositely double helix centrifugal atomization device 2, cartridge 3, restriction choke 4, set slips 5 and throttling valve fishing head 6 is formed.
Compound steel silk screen pack and a sand cap are arranged in the sand control device 1.Upper end at sand control device 1 connects a reverse double helix centrifugal atomization device 2, oppositely the upper end of double helix centrifugal atomization device 2 connects two cartridge 3, the upper end of cartridge 3 connects a restriction choke 4, the upper end of restriction choke 4 connects one and sets slips 5, and the upper end that sets slips 5 connects a two-step throttle valve fishing head 6.
Claims (2)
1. reverse double helix centrifugal atomization underground throttle device, mainly by sand control device (1), reverse double helix centrifugal atomization device (2), cartridge (3), restriction choke (4), setting slips (5) and throttling valve fishing head (6) forms, it is characterized in that: connect reverse double helix centrifugal atomization device (2) in the upper end of sand control device (1), oppositely the upper end of double helix centrifugal atomization device (2) connects cartridge (3), the upper end of cartridge (3) connects restriction choke (4), the upper end connection of restriction choke (4) sets slips (5), and the upper end that sets slips (5) connects throttling valve fishing head (6).
2. reverse double helix centrifugal atomization underground throttle device according to claim 1 is characterized in that: compound steel silk screen pack and a sand cap are arranged in the described sand control device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205051420U CN201778776U (en) | 2010-08-25 | 2010-08-25 | Reverse double-helix centrifugal injection downhole choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205051420U CN201778776U (en) | 2010-08-25 | 2010-08-25 | Reverse double-helix centrifugal injection downhole choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778776U true CN201778776U (en) | 2011-03-30 |
Family
ID=43791989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205051420U Expired - Lifetime CN201778776U (en) | 2010-08-25 | 2010-08-25 | Reverse double-helix centrifugal injection downhole choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837266A (en) * | 2016-12-26 | 2017-06-13 | 中国石油天然气股份有限公司 | Gas well underground drainage and gas production tool based on integration of jet flow and vortex flow |
| CN111197472A (en) * | 2019-12-31 | 2020-05-26 | 鄂尔多斯市天泰石油科技开发有限公司 | Gas well underground composite efficient drainage throttling device |
-
2010
- 2010-08-25 CN CN2010205051420U patent/CN201778776U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837266A (en) * | 2016-12-26 | 2017-06-13 | 中国石油天然气股份有限公司 | Gas well underground drainage and gas production tool based on integration of jet flow and vortex flow |
| CN106837266B (en) * | 2016-12-26 | 2019-05-03 | 中国石油天然气股份有限公司 | Gas well underground drainage and gas production tool based on integration of jet flow and vortex flow |
| CN111197472A (en) * | 2019-12-31 | 2020-05-26 | 鄂尔多斯市天泰石油科技开发有限公司 | Gas well underground composite efficient drainage throttling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |