CN202689978U - Tool for flushing drilling template - Google Patents
Tool for flushing drilling template Download PDFInfo
- Publication number
- CN202689978U CN202689978U CN 201220317468 CN201220317468U CN202689978U CN 202689978 U CN202689978 U CN 202689978U CN 201220317468 CN201220317468 CN 201220317468 CN 201220317468 U CN201220317468 U CN 201220317468U CN 202689978 U CN202689978 U CN 202689978U
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- CN
- China
- Prior art keywords
- drilling template
- drill stem
- tool
- drilling
- flushing
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- Expired - Lifetime
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Abstract
The utility model provides a tool for flushing a drilling template. The tool comprises a drill stem, wherein the drill stem is connected with a plurality of flushing pipes; a positioning cover is arranged at the lower end of the drill stem; the flushing pipes are fixed on the positioning cover; the lower end of the drill stem is closed; and water inlets of the flushing pipes are communicated with an inner cavity of the drill stem, and water outlets of the flushing pipes face downwards. When the tool is used, the positioning cover can be positioned at the position on which a level gauge of the drilling template is positioned, high-pressure flushing water is introduced along the drill stem to flush the drilling template by the flushing pipes, and cement and debris around the drilling template are flushed by rotating the drill stem and moving the drill stem up and down. According to the tool, the time of binding a guiding rope at a moonwell is shortened, the integral drilling template can be flushed at one time, time and labor are saved, the times of running the drill stem into the well are reduced, the work efficiency can be improved effectively, and the tool is extremely convenient.
Description
Technical field
The utility model relates to a kind of flushing tool, particularly relates to a kind of instrument that when ocean floor drilling drilling template is washed that is exclusively used in.
Background technology
When adopting the offshore oil and gas field that pre-drilling well mode develops, need to be lowered to underwater drilling basal disc in the ocean floor drilling position, the slotted eye number that underwater drilling basal disc is reserved and basal disc size need to increase to bore according to oil-gas field development well number, expection adjusts the well number and the engineering-built expense is comprehensively determined, and generally all can leave certain allowance.In order to prevent blowout, usually need to preventer be installed at well head at drilling process.Preventer is to cut out well head for operation process such as formation testing, well workover, completions, prevents that gas blowout accident from occuring, and will entirely seal and partly seal two kinds of functions to be integrated, have simple in structure, easy to operate, the characteristics such as high pressure resistant are the oil field security seal wellhead assemblies that prevents blowout commonly used.When the OIH atmospheric pressure was very high, preventer can seal well head (shutting), is pressed into weighted mud in drilling rod, under its flashboard four-way is arranged, the replaceable mud that goes out to be subjected to gas cut, and the pressure of fluid column in the increase well is to push down the ejection of high-pressure oil gas.
Before lower preventer, in order to understand the situation of subsea wellheads, usually needs use underwater robot removes to observe the level gauge on drilling template, but because one hold the cement and two that returns out in the well cementation and hold a large amount of silts that operation carries out from the shaft bottom etc. and level gauge is covered around can being deposited in drilling template, even whole drilling template can be buried, will cause like this underwater robot can't watch level gauge on the drilling template.Run into this situation, conventional way is exactly lower polish drill rod, locates flush position by the mode of tying up guide rope drilling template is washed.This way is very high to the colligation requirement of guide rope, and the developing result that different personnel's colligations produce is different, and ocean current is larger on the impact of drilling rod flush position, slightly has carelessness that the once flushing operation is cancelled, and causes the huge waste of time and manpower.In view of considering of above problem, design and produce the special-purpose flushing tool of guiding basal disc, can use quickly and easily.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model be to provide a kind of can be fast, the convenient instrument that drilling template is washed.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of drilling template flushing tool, it comprises a drilling rod, described drilling rod is connected with several cleaning hoses, the lower end of described drilling rod is provided with a locating cover, and described cleaning hose is fixed on the described locating cover, the sealing of described drilling rod lower end, described cleaning hose water inlet is communicated with the inner chamber of described drilling rod, and the delivery port of described cleaning hose is downward.
Preferably, described several cleaning hose is evenly distributed on the outer wall of described locating cover.
Preferably, be provided with the reinforcement gusset between described locating cover and the described drilling rod.
Preferably, be provided with bracing frame between described locating cover and the described cleaning hose.
As mentioned above, it has following beneficial effect drilling template flushing tool of the present utility model: this drilling template flushing tool in use, locating cover can be positioned at the position at drilling template level gauge place, pass into high-pressure washing water and clean creeping into basal disc through each cleaning hose by drilling rod after finish the location, by rotary drill rod and on put and put drilling rod, cement and landwaste around the drilling template are rinsed well.This drilling template flushing tool has reduced the time of tying up guide rope at moonpool, and can disposable whole drilling template be rinsed well, and is time saving and energy saving, very convenient, namely saved manpower, reduced again the number of times of time brill, but the Effective Raise operating efficiency.
Description of drawings
Fig. 1 is the external structure schematic diagram of the utility model embodiment.
Fig. 2 is the longitudinal sectional view of Fig. 1.
The element numbers explanation
1 drilling rod
2 cleaning hoses
3 locating covers
4 bracing frames
5 strengthen gusset
The specific embodiment
Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this manual.
Notice, the appended graphic structure that illustrates of this manual, ratio, size etc., equal contents in order to cooperate manual to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this manual as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
As shown in Figure 1, 2, the utility model provides a kind of drilling template flushing tool, and it comprises a drilling rod 1, and drilling rod is connected with several cleaning hoses 2, and the lower end of drilling rod 1 is provided with a locating cover 3, in order to guarantee firmly, be provided with between locating cover 3 and the drilling rod 1 to strengthen gusset 5.Several cleaning hoses 2 are evenly distributed on the outer wall of locating cover 3, and are fixedly connected with locating cover 3, are provided with bracing frame 4 between locating cover 3 and the cleaning hose 2, and bracing frame 4 is used for cleaning hose 2 is supported.The sealing of drilling rod 1 lower end, the water inlet of cleaning hose 2 is communicated with the inner chamber of drilling rod 1, and the delivery port of cleaning hose 2 is downward.
This drilling template flushing tool in use, locating cover 3 can be positioned at the position at drilling template level gauge place, after finishing, the location passes into high-pressure washing water by drilling rod 1, because drilling rod 1 lower end sealing, high-pressure washing water can only by each cleaning hose outwards ejection clean creeping into basal disc, so only need by rotary drill rod 1 and on put and put drilling rod 1 and just drilling template cement and landwaste all around can be rinsed well.
This drilling template flushing tool has reduced the time of tying up guide rope at moonpool, rotate among a small circle about only needing to rely on and on put and put to change flush position, can reach the ideal effect of rinsing whole drilling template well.This drilling template flushing tool is lower to the required precision of driller's colligation guide rope, can eliminate the impact of tying up guide rope personnel technology and natural conditions, reach the unified standard operation, and only need once lower boring just whole drilling template can be rinsed well, time saving and energy saving, very convenient, adopt this instrument just can reach the effect that whole drilling template is rinsed well in 1 hour, as the method that adopts the flushing of original drilling rod minimum needs 4 hours then.This drilling template flushing tool also has assembling, dismounting is simple, convenient, the advantage of easy operating.In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (4)
1. drilling template flushing tool, it is characterized in that: it comprises a drilling rod, described drilling rod is connected with several cleaning hoses, the lower end of described drilling rod is provided with a locating cover, described cleaning hose is fixed on the described locating cover, the sealing of described drilling rod lower end, described cleaning hose water inlet is communicated with the inner chamber of described drilling rod, and the delivery port of described cleaning hose is downward.
2. drilling template flushing tool according to claim 1, it is characterized in that: described several cleaning hoses are evenly distributed on the outer wall of described locating cover.
3. drilling template flushing tool according to claim 1 is characterized in that: be provided with the reinforcement gusset between described locating cover and the described drilling rod.
4. drilling template flushing tool according to claim 1 is characterized in that: be provided with bracing frame between described locating cover and the described cleaning hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317468 CN202689978U (en) | 2012-06-29 | 2012-06-29 | Tool for flushing drilling template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317468 CN202689978U (en) | 2012-06-29 | 2012-06-29 | Tool for flushing drilling template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689978U true CN202689978U (en) | 2013-01-23 |
Family
ID=47545608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220317468 Expired - Lifetime CN202689978U (en) | 2012-06-29 | 2012-06-29 | Tool for flushing drilling template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222885A (en) * | 2018-03-28 | 2018-06-29 | 赵梓萱 | Drilling rod is removed contamination system |
-
2012
- 2012-06-29 CN CN 201220317468 patent/CN202689978U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222885A (en) * | 2018-03-28 | 2018-06-29 | 赵梓萱 | Drilling rod is removed contamination system |
| CN108222885B (en) * | 2018-03-28 | 2024-05-10 | 赵梓萱 | Drill rod dirt cleaning system |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |