CN2926486Y - Fast wellhead for oil-gas water well - Google Patents
Fast wellhead for oil-gas water well Download PDFInfo
- Publication number
- CN2926486Y CN2926486Y CN 200620092577 CN200620092577U CN2926486Y CN 2926486 Y CN2926486 Y CN 2926486Y CN 200620092577 CN200620092577 CN 200620092577 CN 200620092577 U CN200620092577 U CN 200620092577U CN 2926486 Y CN2926486 Y CN 2926486Y
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- China
- Prior art keywords
- well
- oil
- fast
- water well
- guiding
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- Expired - Fee Related
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Abstract
The utility model relates to a fast mounting head of an oil vapor well used for operation underground of oil, gas and water well to avoid a blowout, comprising a stopcock1, a lifting sub2, a flange3, a guiding shoe4, and a lower short section5. An upper end and a lower end of the lifting pipe nipple2 are relatively connected with a lower end of the stopcock1 and an upper end of the flange3 by means of thread. a lower end of the flang3 is connected with the guiding shoe4 by means of inner thread. a lower end of the guiding shoe is connected with a upper end of the lower pipe nipple5 by means of inner thread. The fast installation well head has advantages of reasonable design, light weight, easy installation and operation and can shorten snatch installation time at the time of a well kick occurring during underground operation in oil vapor and water well to guarantee a success of snatch jet and a smooth construction.
Description
Technical field:
The utility model relates to a kind of wellhead assembly that oil, gas, well increasing yield and injection measure underground work prevent blowout that is used for, and belongs to oil recovery downhole operation equipment class.
Background technology:
Along with oil field development enters the middle and later periods, increasing oil, gas, well need carry out measures to reach the purpose of increasing yield and injection.For safeguard measure well construction safety is carried out smoothly, wellhead blowout preventor is housed usually, but in a single day when blowout taking place, this kind wellhead blowout preventor can only seal oil casing annular space when rountrip, oil pipe still is in opening-wide state, and that need rob dress sealing oil pipe fluid course robs gusher mouth device.At present, field by using to rob the gusher mouth relatively heavy, button partially is difficult to quick operation easily, robs and pretends industry length consuming time, influences carrying out smoothly of well construction operation.
Summary of the invention:
But the utility model purpose is to provide oil, gas, the well fast-assembling well head of a kind of not only light blowout prevention performance but also good and Fast Installation.
The utility model purpose is to realize like this.This kind fast-assembling well head is made up of plug valve, lifting sub, flange, guide shoe and following pipe nipple, the lifting sub upper and lower end is connected with flange with plug valve with screw thread respectively, the flange below is connected with guide shoe with screw thread, and the guide shoe lower end is connected with following pipe nipple with screw thread.During the oil gas water well normal construction, the fast-assembling well head vertically is placed on the special stand, plug valve is placed opening, following pipe nipple should select for use with well in the pin thread of tubing string coupling, be used for connecting tubing string in the well; When construction well generation well kick, after this fast-assembling well head winched to well head and the interior tubing string of well is connected buckle, take elevator with carrying 100-200mm on the tubing string in the well with lifting card on the workover rig, transfer the fast-assembling well head; Because guide shoe has and leads the oblique angle, can enter big four automatically when guide shoe partly enters the well head big four, flange lower plane steel ring then enters well head big four steel ring slot automatically, and tighten corner bolt 4 this moment; Behind 90 ° on the cut-out tap valve all the other 8 bolts are tightened, can wash the kill job operation this moment; Washing kill-job finishes to carry on the back well head and can go on foot construction operation down.Because this fast-assembling well head adopts plug valve to replace 250 gates that existing fast-assembling well head adopts usually, makes weight alleviate greatly, and is easy to install.Because lifting sub is with being threaded in valve below and having snap ring, direct poppet when promoting well head, flat, thickening elevator can be general.In addition, guide shoe has leads the oblique angle and can make the well head automatic centering, and steel ring is gone into groove automatically, makes to rob that to pretend industry convenient and swift, saves time.
The utility model is reasonable in design, and is in light weight, installation, convenient to operation, and blowout prevention is respond well, utilizes it to shorten when oil, gas, well rountrip generation well kick and robs ETL estimated time of loading, guarantees to rob to be sprayed into carrying out smoothly of merit and construction operation.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of plug valve 1, lifting sub 2, flange 3, guide shoe 4 and following pipe nipple 5, its structure, assembled relation are as follows: lifting sub 2 upper and lower ends are connected with flange 3 upper ends with plug valve 1 lower end with screw thread respectively, flange 3 lower internal thread are connected with guide shoe 4, and guide shoe 4 lower end internal threads are connected with following pipe nipple 5 upper ends.Wherein, lifting sub 2 upper and lower ends are respectively equipped with to be connected with flange 3 with plug valve 1 uses external screw thread, and the top periphery is provided with to be beaten elevator and promote and use round platform.Flange 3 is evenly equipped with 12 screws along periphery, and each screw is dolioform increasing along central axis, so that bolt alleviates own wt to neutralization.Guide shoe 4 bottoms have leads the oblique angle, is convenient to well head automatic centering and steel ring and goes into groove automatically, and external week of guide shoe is evenly equipped with 6 groove millings and is beneficial to weight reduction, and the guide shoe lower end is
Regular upset drilling rod button can connect the change button that is applicable to operating tool string in the well.
Claims (1)
1, a kind of oil gas water well fast-assembling well head, form by plug valve (1), lifting sub (2), flange (3), guide shoe (4) and following pipe nipple (5), it is characterized in that: lifting sub (2) upper and lower end is connected with flange (3) upper end with plug valve (1) lower end with screw thread respectively, flange (3) lower internal thread is connected with guide shoe (4), and guide shoe (4) lower end internal thread is connected with following pipe nipple (5) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092577 CN2926486Y (en) | 2006-07-25 | 2006-07-25 | Fast wellhead for oil-gas water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092577 CN2926486Y (en) | 2006-07-25 | 2006-07-25 | Fast wellhead for oil-gas water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926486Y true CN2926486Y (en) | 2007-07-25 |
Family
ID=38280730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092577 Expired - Fee Related CN2926486Y (en) | 2006-07-25 | 2006-07-25 | Fast wellhead for oil-gas water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926486Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761525A (en) * | 2016-12-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Blowout control wellhead and blowout control method |
-
2006
- 2006-07-25 CN CN 200620092577 patent/CN2926486Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761525A (en) * | 2016-12-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Blowout control wellhead and blowout control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 |