CN201521254U - Novel pullout blowout control joint - Google Patents
Novel pullout blowout control joint Download PDFInfo
- Publication number
- CN201521254U CN201521254U CN2009201008240U CN200920100824U CN201521254U CN 201521254 U CN201521254 U CN 201521254U CN 2009201008240 U CN2009201008240 U CN 2009201008240U CN 200920100824 U CN200920100824 U CN 200920100824U CN 201521254 U CN201521254 U CN 201521254U
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- CN
- China
- Prior art keywords
- pullout
- slip cap
- adapter body
- drilling
- novel
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- Expired - Fee Related
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Abstract
The utility model relates to a pullout blowout control joint for petroleum drilling, which mainly resolves problems of unsafe production and wastes resources caused by drilling fluid which is sprayed out from the inside of a drill during a pullout process in drilling operation fields. The pullout blowout control joint is characterized in that a passage (7) is radially uniformly distributed on the middle portion of a small-diameter portion of a joint main body (1), a sliding sleeve (2) is fixed on the small-diameter portion via a pin, and the upper end and the lower end of the sliding sleeve (2) are radially uniformly distributed with circulating holes (8). The novel pullout blowout control joint has the advantages of safe production, low drilling fluid consumption and environment protection.
Description
Technical field:
The utility model relates to joint used in a kind of Process of Oil Well Drilling, particularly a kind of novel trip-out blowout prevention joint.
Background technology:
In oil drilling, the situation of drill bit water blockoff eye happens occasionally, because drill bit water blockoff eye, often has a large amount of drilling fluids to spray in drilling tool during trip-out, particularly in the horizontal well drilling process, employing be the drillng operation that curved screw rod is united driving; In horizontal well is cored, employing be the drillng operation that straight screw drive horizontal well coring tool carries out.When horizontal well drilling finishes or finishes a horizontal well and core when finishing, operation all will pull out of hole, because factors such as screw rod bypass valve drilling fluid flow velocity is slow, trip-out speed is fast, cause that drilling fluid sprays in the trip-out process in drilling tool, loss oil base drilling fluid, and cause well head operator, drilling equipment and rig floor to pollute, overslaugh operation, influence safety in production.Particularly carry out horizontal well in the winter time when coring, every drilling tool next time loses about 1.5m
3Oil base drilling fluid, about about 10,000 yuan of cost has increased the coring operation cost.
The utility model content:
Technical problem to be solved in the utility model is to overcome in the trip-out process that exists in the background technology ejection drilling fluid in the drilling tool and the dangerous and waste problem of resource of production that causes; consume characteristics low, the protection environment and provide a kind of novel trip-out blowout prevention joint, this novel trip-out blowout prevention joint to have production safety, drilling fluid.
The invention for solving the technical problem can reach by following technical solution: this novel trip-out blowout prevention joint comprises the adapter body of inner chamber middle part for the path part, adapter body path part middle part radial equipartition has passage, the path part is by the dowel fixes slip cap, and slip cap upper and lower end radial equipartition has circulation port.
The passage of described adapter body and slip cap are equipped with sealing ring respectively between circulation port up and down.
Described passage has three; Described slip cap upper and lower end radially is evenly equipped with three circulation ports respectively.
Described pin is fixed with plug.
The utility model is compared with the above-mentioned background technology can have following beneficial effect: this novel trip-out blowout prevention joint is owing to adopt said structure, position by the slip cap in the joint changes, increased apocenosis passage, make the drilling fluid in the drilling tool enter bore hole annulus rapidly by the passage of adapter body and the circulation port of slip cap, drilling fluid is descending fast when pulling out of hole fast, free from environmental pollution, reduce the consumption of drilling fluid, save drilling cost, guarantee well head operator's production safety, simple in structure, easy to operate.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Structural representation when accompanying drawing 2 is the utility model trip-out;
Accompanying drawing 3 is that the A-A of Fig. 2 is to sectional view;
Accompanying drawing 4 is that the B-B of Fig. 2 is to sectional view;
Accompanying drawing 5 is structural representations of the utility model slip cap;
Accompanying drawing 6 is that the A-A of Fig. 5 is to sectional view.
Among the figure: 1-adapter body, 2-slip cap, 3-plug, 4-pin, 5-ball, 6-sealing ring, 7-passage, 8-circulation port, 9-annular groove, 10-path part, 11-large-diameter portion branch.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
As shown in Figure 1, this novel trip-out blowout prevention joint comprises that the inner chamber middle part is the adapter body 1 of path part 10, adapter body 1 path part 10 middle part radial equipartitions have passage 7, path part 10 is by the fixing slip cap 2 of pin 4, adapter body 1 path part 10 is porose, the annular groove corresponding with this hole 9 arranged on the slip cap 2, with pin 4 slip cap 2 is fixed in the adapter body 1 by the hole of annular groove 9 with adapter body 1 path part 10; Slip cap 2 upper and lower end radial equipartitions have circulation port 8; The passage 7 of described adapter body 1 and slip cap 28 of upper and lower circulation ports are equipped with sealing ring 6 respectively, prevent that drilling fluid from discharging from passage.Shown in accompanying drawing 3, described passage 7 has three; By accompanying drawing 5, shown in Figure 6, described slip cap 2 upper and lower ends radially are evenly equipped with three circulation ports 8 respectively, and promptly the circulation port 8 of slip cap 2 adds up to six; As Fig. 2, shown in Figure 4, described pin 4 usefulness plugs 3 are fixing, and pin 4 and plug 3 are respectively three, and fixing with plug 3, drilling fluid is discharged in the annular space by pin 4 from adapter body 1 inner chamber in the time of can preventing drilling well.
This blowout prevention joint assembling and the course of work are: during assembling, four sealing rings 6, coating butter are installed on slip cap 2, enter from adapter body 1 top, annular groove 9 on the slip cap 2 is aimed at the pin hole of adapter body 1, and is with pin 4 that slip cap 2 is fixing with adapter body 1, and tightens plug 3.When normally creeping into, the upper and lower screw thread of this adapter body 1 adopts the drilling rod button, and the top box thread is connected with drill collar, and the bottom male thread is connected with drill bit or screw rod, when this adapter body is applied in straight well, is connected with drill bit; Be connected with screw rod when being applied to horizontal well, torsion pass intensity, the bore passages size of adapter body 1 meet design requirement.As shown in Figure 2, when creeping into end need pull out of hole the time, dismantle kelly bar and throw in ball 5 from well head, kelly bar circulating fluid in the connection, after ball 5 circulations put in place, under certain pressure, cut off pin 4, the large-diameter portion that slip cap 2 comes downwards to adapter body 1 divides 11, open three apocenosis passages 7 on the adapter body 1, and drilling fluid also can be by three circulation ports 8 above the slip cap 2, by the space between slip cap and the main body tube wall, be communicated with following three circulation ports, drilling fluid is discharged by bit port.
The design of this blowout prevention joint changes by the position of slip cap in the adapter body, open three circulation ports of adapter body, and three circulation ports that the slip cap upper and lower end is uniform, be communicated with space between the main body tube wall by slip cap, the part drilling fluid flows out from the apocenosis passage on bit port or the adapter body, increased the earial drainage area that drilling fluid is discharged, thereby quickened the downstream rate of drilling fluid in drilling tool, reached not the purpose of ejection drilling fluid in the drilling tool, free from environmental pollution, production safety, drilling cost is low, the efficient height.
Claims (5)
1. novel trip-out blowout prevention joint, comprise the adapter body (1) of inner chamber middle part for path part (10), it is characterized in that: adapter body (1) path part (10) middle part radial equipartition has passage (7), path part (10) is by the fixing slip cap (2) of pin (4), and slip cap (2) upper and lower end radial equipartition has circulation port (8).
2. novel trip-out blowout prevention joint according to claim 1 is characterized in that: between the circulation port (8) of the passage (7) of described adapter body (1) and slip cap (2) upper and lower end radial equipartition sealing ring (6) is housed respectively.
3. novel trip-out blowout prevention joint according to claim 1 and 2, it is characterized in that: described passage (7) has three.
4. novel trip-out blowout prevention joint according to claim 1 and 2 is characterized in that: described slip cap (2) upper and lower end radially is evenly equipped with three circulation ports (8) respectively.
5. novel trip-out blowout prevention joint according to claim 1 is characterized in that: described pin (4) is fixing with plug (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201008240U CN201521254U (en) | 2009-09-10 | 2009-09-10 | Novel pullout blowout control joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201008240U CN201521254U (en) | 2009-09-10 | 2009-09-10 | Novel pullout blowout control joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521254U true CN201521254U (en) | 2010-07-07 |
Family
ID=42507430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201008240U Expired - Fee Related CN201521254U (en) | 2009-09-10 | 2009-09-10 | Novel pullout blowout control joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521254U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296941A (en) * | 2011-07-29 | 2011-12-28 | 扬州市驰城石油机械有限公司 | drilling tool bypass valve |
| CN104499987A (en) * | 2014-12-10 | 2015-04-08 | 宝鸡瑞通石油装备有限公司 | Novel full-flow area sliding sleeve switch |
| CN111963134A (en) * | 2020-09-14 | 2020-11-20 | 中国石油集团渤海钻探工程有限公司 | Throttling-free multi-stage separate-layer fracturing pipe column and multi-stage separate-layer fracturing construction method |
| CN112160736A (en) * | 2020-09-14 | 2021-01-01 | 中国石油集团渤海钻探工程有限公司 | Non-throttling sand blasting sliding sleeve |
| CN113431514A (en) * | 2021-07-08 | 2021-09-24 | 中石化石油工程技术服务有限公司 | Anti-erosion circulation well-flushing tool capable of improving well-flushing effect |
-
2009
- 2009-09-10 CN CN2009201008240U patent/CN201521254U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296941A (en) * | 2011-07-29 | 2011-12-28 | 扬州市驰城石油机械有限公司 | drilling tool bypass valve |
| CN104499987A (en) * | 2014-12-10 | 2015-04-08 | 宝鸡瑞通石油装备有限公司 | Novel full-flow area sliding sleeve switch |
| CN111963134A (en) * | 2020-09-14 | 2020-11-20 | 中国石油集团渤海钻探工程有限公司 | Throttling-free multi-stage separate-layer fracturing pipe column and multi-stage separate-layer fracturing construction method |
| CN112160736A (en) * | 2020-09-14 | 2021-01-01 | 中国石油集团渤海钻探工程有限公司 | Non-throttling sand blasting sliding sleeve |
| CN113431514A (en) * | 2021-07-08 | 2021-09-24 | 中石化石油工程技术服务有限公司 | Anti-erosion circulation well-flushing tool capable of improving well-flushing effect |
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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: 20100707 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |