CN203835309U - Under-pressure drilling plug and scrap catching device for horizontal well - Google Patents
Under-pressure drilling plug and scrap catching device for horizontal well Download PDFInfo
- Publication number
- CN203835309U CN203835309U CN201420207301.7U CN201420207301U CN203835309U CN 203835309 U CN203835309 U CN 203835309U CN 201420207301 U CN201420207301 U CN 201420207301U CN 203835309 U CN203835309 U CN 203835309U
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- Prior art keywords
- plug
- main body
- union
- sand screen
- valve
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Abstract
The utility model discloses an under-pressure drilling plug and scrap catching device for a horizontal well. The device is formed by manual flat valves, a filter body and a plug valve, wherein the manual flat valves are symmetrically arranged on the left and the right of center lines of a liquid return inlet union and a liquid return outlet tee joint respectively. The liquid return inlet union is connected with the upper end of a liquid return inlet tee joint through screws, the two ends of each manual flat valve are connected with the liquid return inlet tee joint and the filter body respectively, and the liquid return outlet tee joint is connected with the filter body through the plug valve via a union connector. A sand filter pipe is arranged in an inner cavity of the filter body, a pressure relief plug is arranged at the upper end of the filter body, and the lower end of the sand filter pipe is provided with a sand filter pipe plug. The under-pressure drilling plug and scrap catching device for the horizontal well has the advantages of being reasonable in structural design, low in cost, simple in manufacture process and convenient to install and connect, is convenient to operate, safe, reliable, capable of reducing cost and achieving continuous flowback, and capable of improving production efficiency greatly.
Description
Technical field
The invention belongs to technical field of petroleum extraction, relate to the continuous brill plug with pressure of a kind of horizontal well and catch bits device.
Background technology
At present the ground row of returning test jobs and boring between plug sand washing operational period continuously after the extensive sand fracturing of shale gas reservoir, returns discharge opeing containing a large amount of sand grains and chip, and ground returns that row's testing process easily occurs to stop up or thorn leakage, and security risk is high, affects construction speed.
summary of the invention
The purpose of this utility model is, provide one to be enclosed within shale gas well and to bore continuously in the plug row of returning process, the ground installation of desanding, debris removal, returns and under the high back pressure condition that faces of row's test jobs, bores plug and catch bits, desanding, the large discharge capacity technical barrier such as the row of returning continuously to solve shale gas well ground.
" a kind of horizontal well brill plug with pressure is caught bits device " is provided, this is caught, and bits device has advantages of reasonable in design, cost is low, manufacturing process is simple, it is easy to connect to install, be a kind of easy to operate, safe and reliable, the row of returning, the horizontal well brill plug with pressure that increases substantially production efficiency are caught bits device continuously.
To achieve these goals, the utility model is achieved through the following technical solutions: main technical scheme is, horizontal well brill plug with pressure is caught a bits device, mainly by return liquid entrance union and to return line is symmetrical set centered by liquid outlet threeway manual flat valve, filter main body and plug valve forms.Return liquid entrance union by screw thread with return liquid entrance threeway upper end and be connected, manual flat valve two ends respectively with return the threeway of liquid entrance and filter main body and is connected, described in return liquid outlet three plug valve that stimulates the menstrual flow and be connected with filtration main body by union joint.
Further technical scheme is, described sand screen is arranged in the inner chamber that filters main body, described pressure release plug is arranged on the upper end position that filters main body, be connected with filtration main flange, in the lower end of described sand screen, be provided with sand screen plug, described sand screen plug is detachably fixedly connected with filtration main body by union gland.
Further technical scheme is, by returning liquid entrance union, return the threeway of liquid entrance, manual flat valve I, manual flat valve II, filter main body I, filter main body II, sand screen I, sand screen II, union joint I, union joint II, plug valve I, plug valve II, return liquid outlet threeway and form filter sand circulation canal structure.Pressure release plug I, pressure release plug II, filtration main body I, filtration main body II, sand screen I, sand screen II, sand screen plug I, sand screen plug II, union gland I, union gland II form flushing channel structure.
The utlity model has following advantage:
1, this catches that bits device has advantages of reasonable in design, cost is low, manufacturing process is simple, it is easy to connect to install, be a kind of easy to operate, safe and reliable, reduce costs, the row of returning, the horizontal well brill plug with pressure that increases substantially production efficiency are caught bits device continuously.
2, because the utility model is by return liquid entrance union and to return line is symmetrical set centered by liquid outlet threeway manual flat valve, filter main body and plug valve forms, formation circulation canal can be opened in the left and right sides simultaneously, also can when boring plug, close a side cleans sand screen, meet the requirement of continuous brill plug, sand washing operation, increased substantially production efficiency.
3, import and export pipeline adopts union connection to make pipeline installation, convenient disassembly, guarantees safe and reliable to operation.
4, the solid particle returning in discharge opeing that utilizes this device to be recycled out when boring plug, sand washing is separated, and reaches the recycling of drilling fluid, using water wisely, effectively reduces production costs.
5, the slot size of sand screen design can require free selection according to user, to meet different operating mode demands.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, return liquid entrance union, 2, return the threeway of liquid entrance, 3, manual flat valve I, 4, manual flat valve II, 5, pressure release plug I, 6, pressure release plug II, 7, filter main body I, 8, filter main body II, 9, sand screen I, 10, sand screen II, 11, sand screen plug I, 12, sand screen plug II, 13, union gland I, 14, union gland II, 15, union joint I, 16, union joint II, 17, plug valve I, 18, plug valve II, 19, return liquid outlet threeway.
The specific embodiment
Below by non-limiting example, further set forth the utility model, understand the utility model.
Embodiment
As shown in Figure 1, a kind of horizontal well brill plug with pressure is caught bits device, mainly by return liquid entrance union and to return line is symmetrical set centered by liquid outlet threeway manual flat valve, filter main body and plug valve forms.Return liquid entrance union by screw thread with return liquid entrance threeway upper end and be connected, manual flat valve two ends respectively with return the threeway of liquid entrance and filter main body and is connected, described in return liquid outlet three plug valve that stimulates the menstrual flow and be connected with filtration main body by union joint.
Described sand screen is arranged in the inner chamber that filters main body, described pressure release plug is arranged on the upper end position that filters main body, be connected with filtration main flange, in the lower end of described sand screen, be provided with sand screen plug, described sand screen plug is detachably fixedly connected with filtration main body by union gland.
By returning liquid entrance union, return the threeway of liquid entrance, manual flat valve I, manual flat valve II, filter main body I, filter main body II, sand screen I, sand screen II, union joint I, union joint II, plug valve I, plug valve II, return liquid outlet threeway and form filter sand circulation canal structure.Pressure release plug I, pressure release plug II, filtration main body I, filtration main body II, sand screen I, sand screen II, sand screen plug I, sand screen plug II, union gland I, union gland II form flushing channel structure.
This device adopts machine manufacture.According to user, require, meet different operating mode Demand Design sand screens.
The course of work is:
1, return discharge opeing through returning liquid entrance 1, return liquid entrance threeway 2, manual flat valve I, manual flat valve II enter and filter main body I, filter main body II, through sand screen I, sand screen II, filter Separation of Solid and Liquid, liquid enters and filters main body I, filters main body II annular space by union joint I, union joint II, through plug valve I, plug valve II, expand a mouthful threeway again and be recycled discharge, solid particle is stayed in sand screen.
2, when cleaning, close manual flat valve I, plug valve I, by returning liquid entrance union, return the threeway of liquid entrance, manual flat valve II, filter main body II, sand screen II, union joint II, plug valve II, return liquid outlet threeway and form filter sand circulation canal; After the pressure release of pressure release plug I, dismounting sand screen plug I, union gland I, clear up filtration main body I, sand screen I; Close equally manual flat valve II, plug valve II, can clear up filtration main body II, sand screen II, realize continuous brill plug with pressure and catch bits.
In sum, the utlity model has reasonable in design, cost is low, manufacturing process is simple, advantage easy to connect is installed, be a kind of easy to operate, safe and reliable, reduce costs, the row of returning, the horizontal well brill plug with pressure that increases substantially production efficiency are caught bits device continuously.
Claims (2)
1. a horizontal well brill plug with pressure is caught bits device, it is characterized in that, this catches bits device mainly by exporting to return liquid entrance union (1) and to return liquid the manual flat valve that line is symmetrical set centered by threeway (19), filtering main body and plug valve forms, return liquid entrance union (1) by screw thread with return liquid entrance threeway (2) upper end and be connected, manual flat valve two ends respectively with return liquid entrance threeway (2) and filter main body and be connected, describedly return liquid outlet threeway (19) and be connected with filtration main body by union joint through plug valve, in the inner chamber of described filtration main body, be provided with sand screen, upper end position in described filtration main body is provided with pressure release plug, be connected with filtration main flange, in the lower end of described sand screen, be provided with sand screen plug, described sand screen plug is detachably fixedly connected with filtration main body by union gland.
2. a kind of horizontal well according to claim 1 brill plug with pressure is caught bits device, it is characterized in that: by returning liquid entrance union (1), return liquid entrance threeway (2), manual flat valve I (3), manual flat valve II (4), filter main body I (7), filter main body II (8), sand screen I (9), sand screen II (10), union joint I (15), union joint II (16), plug valve I (17), plug valve II (18), return liquid outlet threeway (19) and form filter sand circulation canal structure; Pressure release plug I (5), pressure release plug II (6), filtration main body I (7), filtration main body II (8), sand screen I (9), sand screen II (10), sand screen plug I (11), sand screen plug II (12), union gland I (13), union gland II (14) form flushing channel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207301.7U CN203835309U (en) | 2014-04-25 | 2014-04-25 | Under-pressure drilling plug and scrap catching device for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207301.7U CN203835309U (en) | 2014-04-25 | 2014-04-25 | Under-pressure drilling plug and scrap catching device for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835309U true CN203835309U (en) | 2014-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207301.7U Expired - Fee Related CN203835309U (en) | 2014-04-25 | 2014-04-25 | Under-pressure drilling plug and scrap catching device for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855094A (en) * | 2021-03-11 | 2021-05-28 | 中海艾普油气测试（天津）有限公司 | Oil nozzle manifold with chip catching function |
-
2014
- 2014-04-25 CN CN201420207301.7U patent/CN203835309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855094A (en) * | 2021-03-11 | 2021-05-28 | 中海艾普油气测试（天津）有限公司 | Oil nozzle manifold with chip catching function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160425 |