CN203201503U - Drilling fluid filter - Google Patents
Drilling fluid filter Download PDFInfo
- Publication number
- CN203201503U CN203201503U CN 201320201463 CN201320201463U CN203201503U CN 203201503 U CN203201503 U CN 203201503U CN 201320201463 CN201320201463 CN 201320201463 CN 201320201463 U CN201320201463 U CN 201320201463U CN 203201503 U CN203201503 U CN 203201503U
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- China
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- filter screen
- drilling fluid
- straight tube
- flow guiding
- overhead gage
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- 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.)
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Abstract
The utility model discloses a drilling fluid filter which comprises a drill string connector, a flow guiding head, an upper baffle, a straight cylinder filtering net and an annular base board. The flow guiding head is connected with the upper surface of the upper baffle, and the top end of the straight cylinder filtering net is connected with the lower surface of the upper baffle. The bottom end of the straight cylinder filtering net is connected with the upper surface of the annular base board, and a through hole is formed in the drill string connector. A step is arranged at the through hole, the annular base board is arranged at the step, and the flow guiding head, the upper baffle and the straight cylinder filtering net are arranged in the through hole. The drilling fluid filter can be applied to the technical field of oil exploitation, foreign matter carried in drilling fluid can be filtered, meanwhile, foreign matter disengaged from the inner wall of a drilling rod can also be filtered, and precise instruments and tools in a well can be prevented from being blocked by the foreign matter.
Description
Technical field
The utility model relates to technical field of petroleum extraction, relates in particular to a kind of drilling fluid cleaner.
Background technology
At present in petroleum drilling operation, the drilling fluid cleaner all is mounted in the drilling rod interior (being suspended on the interior step of box end) of drill string upper end, its structure comprises: hand grappling fixture, hanging ring and taper screen pack, but be only applicable to the conventional drilling rod of interior step.
Now in the drillng operation, nearly half is arranged
Well section overhigh pumping pressure, the drilling rod that adopts in these well sections use instead into
Drilling rod, its button-type is XT57, belongs to the special button-type of double containment step, because of
Do not have step in the drilling rod, cleaner can not be installed in its inside.In drilling operation course, often occur because the foreign matters from being blocked underground precision instrument (MWD or LWD) that drilling fluid is carried secretly and instrument (rotary steerable tool Powerdrive) cause the situation of drillng operation inefficacy; In view of the situation, if short at one
Car goes out a step for cleaner is installed in the drilling rod, it is connected on that the top is driven and drilling rod between, this kind improvement is easy to cause this short drill pipe to be broken, and all wants this root short drill pipe of dismounting when connecting column at every turn, and the cleaner inside changing, affect the operation timeliness.
In addition, thicker iron rust (non-Powdered) or cement layer are arranged in some drilling rod inwalls, these iron rust or cement layer all can come off at any time under the vibrations of drillng operation and stop up underground precision instrument and instrument.Existing drilling fluid cleaner all is the taper cleaner with hanging ring, can only be suspended in the drilling rod of interior step; The cleaner of all will packing into before each turn on pump makes up a joint at every turn or will change cleaner during column; Can only filter out the foreign matter from drilling fluid, can not filter out from the foreign matter in the drill string.
The utility model content
The technical problem that the utility model solves provides a kind of drilling fluid cleaner, can filter the foreign matter of carrying secretly in the drilling fluid, can also filter the foreign matter that the drilling rod inwall comes off simultaneously, guarantees that underground precision instrument and instrument be not by foreign matters from being blocked.
For solving the problems of the technologies described above, the utility model provides a kind of drilling fluid cleaner, comprises drill string joint, flow guiding head, overhead gage, straight tube filter screen and annular bottom plate;
Described flow guiding head connects described overhead gage upper surface, and described straight tube filter screen top connects described overhead gage soffit, and described straight tube filter screen bottom connects described annular bottom plate upper surface;
Be provided with through hole in the described drill string joint, described through hole is provided with step, and described annular bottom plate is placed on described step place, and described flow guiding head and described overhead gage, described straight tube filter screen are arranged in the described through hole.
Above-mentioned drilling fluid cleaner also can have following features: described flow guiding head comprises cross frame, and described flow guiding head connects the upper surface of described overhead gage by described cross frame;
The outside, described cross frame bottom is provided with step, and described overhead gage soffit is provided with the circular concentric groove;
Be minor face between relative two the step medial surfaces in described cross frame bottom, described circular concentric trench inner diameter equates with described minor face;
Described circular concentric groove place is provided with circular hole, and described circular hole and described cross frame stagger.
Above-mentioned drilling fluid cleaner also can have following features: described annular bottom plate upper surface is connected with collection cups.
Above-mentioned drilling fluid cleaner also can have following features: described straight tube filter screen is straight-tube shape, is evenly distributed with a plurality of filter bores, and described straight tube filter screen external surface is connected with filter screen frame placed in the middle; Described filter screen frame placed in the middle comprises at least 2 reinforcing bars.
Above-mentioned drilling fluid cleaner also can have following features: described filter screen frame placed in the middle comprises 4 reinforcing bars, and described reinforcing bar evenly distributes and is connected to the described straight tube filter screen outside.
Above-mentioned drilling fluid cleaner also can have following features: described circular concentric ditch groove width 2mm, dark 1mm.
Above-mentioned drilling fluid cleaner also can have following features: described circular concentric groove place offers 4 circular holes; Described circular hole and described cross frame stagger 45 °, and described Circularhole diameter is 2mm.
The utility model such scheme has following beneficial effect:
1, solved the problem of using the drilling fluid cleaner without the step drilling rod.
2, solved owing to drilling rod inwall foreign matter (iron rust or cement) comes off and blocked the problem of downhole instrument or instrument, avoid unnecessary round trip.
3, foreign matter storage chamber changes large annular space shape into by taper, is more than the thirtyfold of existing cleaner foreign matter storage chamber volume, possesses that finishing pulls out of hole behind drillng operation changes the condition of cleaner.
4, when filled in foreign matter storage chamber, pump pressure rising bypass passageways was opened, and need not the replacing cleaner that pulls out of hole immediately.
5, need not to connect column at every turn or change the drilling fluid cleaner when single, save the drillng operation time.
Description of drawings
Fig. 1 is the assembling drawing of a kind of drilling fluid cleaner of the utility model;
Fig. 2 is the upward view of overhead gage among the utility model embodiment;
Fig. 3 is the front view of straight tube filter screen and filter screen frame placed in the middle among the utility model embodiment;
Fig. 4 is the top view of straight tube filter screen and filter screen frame placed in the middle among the utility model embodiment.
The specific embodiment
For the ease of setting forth the utility model, be described in further detail below with reference to the enforcement of drawings and the specific embodiments to technical solutions of the utility model.
Such as Fig. 1, embodiment drilling fluid cleaner of the present utility model comprises drill string joint 10, flow guiding head 1, overhead gage 3, straight tube filter screen 6 and annular bottom plate 9; Flow guiding head 1 is welded on the upper surface of overhead gage 3, and straight tube filter screen 6 tops are welded on the soffit of overhead gage 3, and straight tube filter screen 6 bottoms are welded on the endoporus place of annular bottom plate 9 upper surfaces; Be provided with step in the drill string joint 10, annular bottom plate 9 is placed on the step place.
Inwall by straight tube filter screen 6 and drill string joint 10 consists of the storage chamber.Foreign matter is stored in the above-mentioned storage chamber after filtering through straight tube filter screen 6.Storage chamber in the present embodiment is large annular space shape structure, and the storage chamber of existing cleaner is pyramidal structure, storage cavity space volume in the present embodiment increases greatly, more than the thirtyfold of existing cleaner, satisfy the once demand of complete drillng operation fully, just pull out of hole after possessing drillng operation and finishing and change the condition of cleaner, can not fill foreign matter and pull out of hole the replacing cleaner because of the down-hole cleaner in most cases.
The utility model drilling fluid cleaner is that the special cleaner of packing in the oil drilling drill string joint 10 of a special use forms, and drill string joint 10 is connected on the upper end of underground precision instrument and instrument; During operation, flow through the from top to bottom flow guiding head 1 of cleaner of drilling fluid enters the annular space shape storage chamber of cleaner, and the straight tube filter screen 6 through cleaner filters again, is flowed to precision instrument and the instrument of lower end by the endoporus of filter bores 7 and annular bottom plate 9 again.Drill string joint 10 is shell bodies of drilling fluid cleaner, and diameter and button-type are identical with used drill collar, is provided with step in the drill string joint 10, is mainly used to the fuse of these cleaners such as support straight tube filter screen 6, flow guiding head 1.In the present embodiment, drill string joint 10 long 1m.
In conjunction with Fig. 1 and Fig. 2, flow guiding head 1 and and overhead gage 3 between also be welded with cross frame 2, the end outside that cross frame 2 connects overhead gages 3 is provided with step, the step height is 10mm; The soffit of overhead gage 3 also is provided with one and is complementary the circular concentric groove 5 of degree of depth 1mm and width 2mm with the cross frame lower end diameter; Circular concentric groove 5 places offer circular hole 4, and circular concentric groove 5 places can offer a plurality of circular holes 5, preferably, and the 45 ° of settings of staggering of the circular concentric groove 5 places circular hole 4 that to offer 4 diameters be 2mm in the overhead gage 3 in the present embodiment, circular hole 4 and cross frame 2.The purpose that arranges like this is: when foreign matter is filled in the storage chamber, the drilling fluid filtration channel is blocked, pump pressure rising drilling liquid flow can sharply rise through the flow velocity of circular hole 4, overhead gage 3 is along 5 fractures of circular concentric groove under waterpower cutting and inside and outside differential pressure effect, cross frame 2 begins to descend, until the step on the cross frame 2 is sitting on the residual overhead gage 3, avoided cross frame 2 and flow guiding head 1 integral body to drop in the straight tube filter screen 6, following precision instrument is damaged, at this moment, drilling fluid can flow directly to precision instrument or the instrument of below along the gap that overhead gage 3 is opened without straight tube filter screen 6, so just need not the replacing cleaner that pulls out of hole immediately.Effectively avoided causing the operating pressure of the circulating system to surpass amount operating pressure (being rated pump pressure) and can't carry out normal drillng operation owing to the stifled full foreign matter in storage chamber causes the inside and outside pressure reduction of straight tube filter screen excessive.
In conjunction with Fig. 3 and Fig. 4, straight tube filter screen 6 mainly filters foreign matter in the drilling fluid, in the present embodiment, evenly is drilled with many on the steel pipe of straight tube filter screen by one section 500mm length
Filter bores 7 consists of.The upper end of straight tube filter screen 6 is provided with filter screen frame placed in the middle, and preferably, filter screen frame placed in the middle is by 4
Reinforcing bar 11 form, reinforcing bar 11 evenly distributes and is welded on the upper end of straight tube filter screen 6, plays the placed in the middle and conveniently assemble and disassemble effect of righting.
In the drillng operation, adopt the drilling fluid cleaner of above-described embodiment, can guarantee underground precision instrument and instrument not by foreign matters from being blocked, can improve the drillng operation operating efficiency simultaneously.
Claims (7)
1. a drilling fluid cleaner is characterized in that, comprises drill string joint, flow guiding head, overhead gage, straight tube filter screen and annular bottom plate;
Described flow guiding head connects described overhead gage upper surface, and described straight tube filter screen top connects described overhead gage soffit, and described straight tube filter screen bottom connects described annular bottom plate upper surface;
Be provided with through hole in the described drill string joint, described through hole is provided with step, and described annular bottom plate is placed on described step place, and described flow guiding head and described overhead gage, described straight tube filter screen are arranged in the described through hole.
2. drilling fluid cleaner as claimed in claim 1, it is characterized in that: described flow guiding head comprises cross frame, described flow guiding head connects the upper surface of described overhead gage by described cross frame;
The outside, described cross frame bottom is provided with step, and described overhead gage soffit is provided with the circular concentric groove;
Be minor face between relative two the step medial surfaces in described cross frame bottom, described circular concentric trench inner diameter equates with described minor face;
Described circular concentric groove place is provided with circular hole, and described circular hole and described cross frame stagger.
3. drilling fluid cleaner as claimed in claim 1, it is characterized in that: described annular bottom plate upper surface is connected with collection cups.
4. drilling fluid cleaner as claimed in claim 1, it is characterized in that: described straight tube filter screen is straight-tube shape, all is distributed with a plurality of filter bores, and described straight tube filter screen external surface is connected with filter screen frame placed in the middle;
Described filter screen frame placed in the middle comprises at least 2 reinforcing bars.
5. drilling fluid cleaner as claimed in claim 4, it is characterized in that: described filter screen frame placed in the middle comprises 4 reinforcing bars, described reinforcing bar evenly distributes and is connected to the described straight tube filter screen outside.
6. drilling fluid cleaner as claimed in claim 2 is characterized in that: described circular concentric ditch groove width 2mm, dark 1mm.
7. such as claim 2 or 6 described drilling fluid cleaners, it is characterized in that: described circular concentric groove place offers 4 circular holes;
Described circular hole and described cross frame stagger 45 °, and described Circularhole diameter is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201463 CN203201503U (en) | 2013-04-19 | 2013-04-19 | Drilling fluid filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201463 CN203201503U (en) | 2013-04-19 | 2013-04-19 | Drilling fluid filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201503U true CN203201503U (en) | 2013-09-18 |
Family
ID=49145618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201463 Expired - Fee Related CN203201503U (en) | 2013-04-19 | 2013-04-19 | Drilling fluid filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201503U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615209A (en) * | 2013-11-14 | 2014-03-05 | 盐城市大冈石油工具厂有限责任公司 | Throttling and pressure regulating filter |
| CN104120983A (en) * | 2014-08-08 | 2014-10-29 | 中国海洋石油总公司 | Top driving system filter screen device with internal thread type kelly saver sub |
| CN104153717A (en) * | 2014-08-08 | 2014-11-19 | 中国海洋石油总公司 | Kelly protective joint inner step type filtering screen device of top drive system |
| WO2016150008A1 (en) * | 2015-03-26 | 2016-09-29 | 深圳市百勤石油技术有限公司 | Drilling rod assembly for filtering drilling fluid |
| CN111173494A (en) * | 2018-11-12 | 2020-05-19 | 中国石油化工股份有限公司 | Underground grinding and filtering tool |
| CN112096327A (en) * | 2020-10-10 | 2020-12-18 | 中国石油集团渤海钻探工程有限公司 | Reverse circulation throwing type drilling tool filter |
-
2013
- 2013-04-19 CN CN 201320201463 patent/CN203201503U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615209A (en) * | 2013-11-14 | 2014-03-05 | 盐城市大冈石油工具厂有限责任公司 | Throttling and pressure regulating filter |
| CN103615209B (en) * | 2013-11-14 | 2016-05-11 | 盐城市大冈石油工具厂有限责任公司 | Throttling pressure regulation filter |
| CN104120983A (en) * | 2014-08-08 | 2014-10-29 | 中国海洋石油总公司 | Top driving system filter screen device with internal thread type kelly saver sub |
| CN104153717A (en) * | 2014-08-08 | 2014-11-19 | 中国海洋石油总公司 | Kelly protective joint inner step type filtering screen device of top drive system |
| WO2016150008A1 (en) * | 2015-03-26 | 2016-09-29 | 深圳市百勤石油技术有限公司 | Drilling rod assembly for filtering drilling fluid |
| CN111173494A (en) * | 2018-11-12 | 2020-05-19 | 中国石油化工股份有限公司 | Underground grinding and filtering tool |
| CN112096327A (en) * | 2020-10-10 | 2020-12-18 | 中国石油集团渤海钻探工程有限公司 | Reverse circulation throwing type drilling tool filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |