CN104514503A - Rock debris filtering device - Google Patents
Rock debris filtering device Download PDFInfo
- Publication number
- CN104514503A CN104514503A CN201310448140.0A CN201310448140A CN104514503A CN 104514503 A CN104514503 A CN 104514503A CN 201310448140 A CN201310448140 A CN 201310448140A CN 104514503 A CN104514503 A CN 104514503A
- Authority
- CN
- China
- Prior art keywords
- filter
- landwaste
- strainer
- downstream
- rock debris
- Prior art date
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
Abstract
The invention discloses a rock debris filtering device. The rock debris filtering device comprises a stop valve, a connecting pipeline and a filter. The rock debris filtering device is provided with a rock debris filtering channel, a rock debris non-filtering channel and a standby filtering channel; a filter cartridge can be conical, cylindrical or in a round-table shape; an inlet and an outlet of the rock debris filtering device can be respectively installed with a pressure measuring device; and the upstream and the downstream of the filter are connected with an outlet of a flushing pipeline and an inlet of the flushing pipeline. The rock debris filtering device has the advantages of small pressure reduction, strong rock debris filtering capacity, a small number of flushing times for the filter cartridge and on-line cleaning.
Description
Technical field
The present invention relates to a kind of landwaste filter, particularly relate to a kind of in oil gas field drilling process, the fluid before flowing through choke valve is carried out to the device of landwaste filtration.
Background technology
In other drilling well or underground work process of under balance pressure drilling, managed pressure drilling and oil gas field, usually need the fluid that throttle valve control well head returns out, back pressure value or well head are returned out fluid flow and controls in rational scope.In conventional throttle valves use procedure, the fluid that well head returns out without any screen out or filter just arrive choke valve.In the operating process of choke valve, a problem that often can run into is that relatively large solid particle can limit or block choke valve, and therefore the flowing of choke valve controls the irregular of change.The solid particle causing choke valve to block may be the fragment falling block or underground equipment of landwaste, down-hole formation.When choke valve blocks, choke valve for subsequent use can only be used instead, to blocking choke valve cleaning and change be all than more laborious thing.
The landwaste filter that oilfield drilling well site is commonly used mainly contains two kinds, and one is vibrosieve, and another is hydrocyclone.Vibrosieve can only be connected to choke valve downstream, and the landwaste in removing drilling fluid, can not solve the problem; If hydrocyclone carries out landwaste separation before being arranged on choke valve, Problems existing is that the operating pressure of eliminator is low, and can not be separated the little particle of proportion as rubber etc.
Therefore, the solid phase particles size that a landwaste filter controls to return out in fluid was needed before choke valve, this device needs to possess the ability of filtering reliably large solid phase particles, after plugged filter replaceable filter element or can on-line cleaning ability and the ability of high pressure of choke valve upstream can be born.
Summary of the invention
Object of the present invention is exactly for prior art Problems existing, provides a kind of filtration realizing carrying out the fluid before entering choke valve large scale solid particle, the landwaste filter preventing choke valve from blocking.
For achieving the above object, the present invention adopts following design scheme:
Novel landwaste filter comprises stop valve, connecting line and strainer, and the inlet tube of landwaste filter is connected on many logical blocks, and the downstream of many logical blocks connects stop valve A, strainer, stop valve B and outlet successively and forms landwaste filtration channel; The downstream of many logical blocks connects shutoff valve C and outlet successively, forms landwaste non-filtered passage.
The downstream of described many logical blocks can connect the redundant filter passage of a road filtration channel again; Flushing line outlet and flushing line entrance is connected respectively at the upstream and downstream of strainer; Strainer on described filtration channel and redundant filter passage is made up of the filter housings of outside and inner filter cartridge, and filter cartridge is processed with through hole; Described filter cartridge can conically, cylindrical shape or truncated cone-shaped.Device for pressure measurement can be separately installed with at the entrance and exit of landwaste filter.
Advantage of the present invention is: (1) filter core area of passage is large, reduces the pressure drop of fluid through landwaste filter; (2) filter core inner space is large, holds bits ability strong, reduces filter core washing time; (3) possess redundant filter passage, when one passes by filter channel blockage, redundant filter passage can be enabled, normal drillng operation can not be affected; (4) directly can close strainer upstream and downstream stop valve after plugged filter, from the external flushing line of filter downstream, by filter downstream toward upstream filter rinsed, realize the on-line cleaning of strainer.
Accompanying drawing explanation
Fig. 1 is the connection diagram of a kind of landwaste filter of the present invention.
Fig. 2 is the sectional view of the conical strainer of a kind of landwaste filter of the present invention.
Fig. 3 is the sectional view of the cylinder filter of a kind of landwaste filter of the present invention.
Fig. 4 is the sectional view of the truncated cone-shaped strainer of a kind of landwaste filter of the present invention.
1. inlet tubes in figure, 2. many logical block, 3. stop valve A, 4. strainer, 5. stop valve B, 6. shutoff valve C, 7. outlet, 8. flushing liquor entrance, 9. flushing liquor outlet, 10. filter housings, 11. conical strainer fuses, 12. cylinder filter fuses, 13. truncated cone-shaped filter cartridges.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment 1, by reference to the accompanying drawings 1 and accompanying drawing 2.
A kind of landwaste filter comprises stop valve, connecting line and strainer.The inlet tube 1 of described landwaste filter is connected on many logical blocks 2, and the downstream of many logical blocks 2 connects stop valve A3, strainer 4, stop valve B5 and outlet 7 successively, forms landwaste filtration channel; The downstream of many logical blocks 2 connects shutoff valve C 6 and outlet 7 successively, forms landwaste non-filtered passage; Flushing line outlet 9 and flushing line entrance 8 is connected respectively at the upstream and downstream of strainer 4.The downstream of described many logical blocks 2 connects the redundant filter passage of a road landwaste filtration channel; Strainer 4 on filtration channel and redundant filter passage is made up of the filter housings 10 of outside and inner filter cartridge 11, and filter cartridge is processed with through hole; Filter cartridge conically 11; Device for pressure measurement is separately installed with at the entrance and exit of landwaste filter.
Embodiment 2, by reference to the accompanying drawings 1 and 3.
A kind of landwaste filter comprises stop valve, connecting line and strainer.The inlet tube 1 of described landwaste filter is connected on many logical blocks 2, and the downstream of many logical blocks 2 connects stop valve A3, strainer 4, stop valve B5 and outlet 7 successively, forms landwaste filtration channel; The downstream of many logical blocks 2 connects shutoff valve C 6 and outlet 7 successively, forms landwaste non-filtered passage; Flushing line outlet 9 and flushing line entrance 8 is connected respectively at the upstream and downstream of strainer 4.The downstream of described many logical blocks 2 connects the redundant filter passage of a road landwaste filtration channel; Strainer 4 on filtration channel and redundant filter passage is made up of the filter housings 10 of outside and inner filter cartridge 12, and filter cartridge is processed with through hole; Filter cartridge cylindrical 12.
Embodiment 3, by reference to the accompanying drawings 1 and accompanying drawing 4.
A kind of landwaste filter comprises stop valve, connecting line and strainer.The inlet tube 1 of described landwaste filter is connected on many logical blocks 2, and the downstream of many logical blocks 2 connects stop valve A3, strainer 4, stop valve B5 and outlet 7 successively, forms landwaste filtration channel; The downstream of many logical blocks 2 connects shutoff valve C 6 and outlet 7 successively, forms landwaste non-filtered passage; Flushing line outlet 9 and flushing line entrance 8 is connected respectively at the upstream and downstream of strainer 4.The strainer 4 of filtration channel is made up of the filter housings 10 of outside and the filter cartridge 13 of inside, and filter cartridge is processed with through hole; Filter cartridge is truncated cone-shaped 13.
In oil gas drilling process, the fluid returned out in well enters many logical blocks 2 through inlet tube 1, fluid through the through hole of the inner space of stop valve A3, conical strainer fuse 11, conical strainer fuse 11, annular space, stop valve B5 and outlet 7 between conical strainer fuse 11 and filter housings 10, then enters choke manifold successively.When filtering channel blockage, the upstream and downstream stop valve of redundant filter passage can be opened, and then close the upstream and downstream stop valve of filtration channel.The filter cartridge 11 of artificial unloading's strainer 4 can remove landwaste, also can at the external scavenging pump in the downstream of strainer 4, the flushing liquor that scavenging pump pumps is by flushing line entrance 8, enter strainer 4, flushing liquor carries in strainer 4 and blocks debris flow through the upstream of filter 4, flowed out by flushing line outlet 9, realize the on-line cleaning of strainer 4.When filtration channel and redundant filter passage all go wrong or do not need to use filtration channel, the stop valve of filtration channel and redundant filter passage can be closed, open the shutoff valve C 6 on non-filtered passage, make fluid directly arrive choke manifold.
Certainly, as shown in accompanying drawing 3 and accompanying drawing 4, filter cartridge also can be processed into cylindrical filter cartridge 12 respectively or be truncated cone-shaped filter cartridge 13.Three kinds of filter cartridges, reverse installation still can use.
Claims (6)
1. a landwaste filter, comprise stop valve, connecting line and strainer, it is characterized in that: the inlet tube (1) of described landwaste filter is connected on many logical blocks (2), downstream one tunnel of many logical blocks (2) connects stop valve A (3), strainer (4), stop valve B (5) and outlet (7), forms landwaste filtration channel; Another road, downstream of many logical blocks (2) connects shutoff valve C (6) and outlet (7), forms landwaste non-filtered passage.
2. landwaste filter according to claim 1, is characterized in that: the downstream of described many logical blocks (2) also connects a road landwaste redundant filter passage.
3. landwaste filter according to claim 2, it is characterized in that: the strainer (4) on described filtration channel and redundant filter passage is made up of the filter housings (10) of outside and inner filter cartridge, and filter cartridge is processed with through hole.
4. landwaste filter according to claim 3, is characterized in that: connect flushing line outlet (9) and flushing line entrance (8) respectively at the upstream and downstream of strainer (4).
5. the landwaste filter according to claim 1,2,3 or 4, is characterized in that: described filter cartridge conically (11) or cylindrical (12), in truncated cone-shaped (13).
6. landwaste filter according to claim 5, is characterized in that: be separately installed with device for pressure measurement at the entrance and exit of landwaste filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448140.0A CN104514503A (en) | 2013-09-27 | 2013-09-27 | Rock debris filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448140.0A CN104514503A (en) | 2013-09-27 | 2013-09-27 | Rock debris filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514503A true CN104514503A (en) | 2015-04-15 |
Family
ID=52790330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310448140.0A Pending CN104514503A (en) | 2013-09-27 | 2013-09-27 | Rock debris filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514503A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017003445A1 (en) * | 2015-06-30 | 2017-01-05 | Halliburton Energy Services, Inc. | Flushing filter |
| CN106401511A (en) * | 2016-10-28 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure filtering throttle manifold and filtering throttling method thereof |
| CN106437575A (en) * | 2016-10-28 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure fine filtering manifold and filtering method thereof |
| US10125579B2 (en) | 2014-06-24 | 2018-11-13 | Halliburton Energy Services, Inc. | Centrifugal particle accumulator |
-
2013
- 2013-09-27 CN CN201310448140.0A patent/CN104514503A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10125579B2 (en) | 2014-06-24 | 2018-11-13 | Halliburton Energy Services, Inc. | Centrifugal particle accumulator |
| WO2017003445A1 (en) * | 2015-06-30 | 2017-01-05 | Halliburton Energy Services, Inc. | Flushing filter |
| GB2554310A (en) * | 2015-06-30 | 2018-03-28 | Halliburton Energy Services Inc | Flushing Filter |
| US10626707B2 (en) | 2015-06-30 | 2020-04-21 | Halliburton Energy Services, Inc. | Flushing filter |
| GB2554310B (en) * | 2015-06-30 | 2021-03-31 | Halliburton Energy Services Inc | Flushing Filter |
| US10233731B2 (en) | 2015-07-27 | 2019-03-19 | Halliburton Energy Services, Inc. | Filter assembly |
| US10233730B2 (en) | 2015-07-27 | 2019-03-19 | Halliburton Energy Services, Inc. | Centrifugal particle accumulator and filter |
| US10815760B2 (en) | 2015-07-27 | 2020-10-27 | Halliburton Energy Services, Inc. | Method of filtering a wellbore fluid |
| CN106401511A (en) * | 2016-10-28 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure filtering throttle manifold and filtering throttling method thereof |
| CN106437575A (en) * | 2016-10-28 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure fine filtering manifold and filtering method thereof |
| CN106401511B (en) * | 2016-10-28 | 2019-02-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of high-pressure filteration choke manifold and its filtering throttling method |
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Legal Events
| Date | Code | Title | Description |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |
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| WD01 | Invention patent application deemed withdrawn after publication |