CN106437575A - High-pressure fine filtering manifold and filtering method thereof - Google Patents
High-pressure fine filtering manifold and filtering method thereof Download PDFInfo
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- CN106437575A CN106437575A CN201610965754.XA CN201610965754A CN106437575A CN 106437575 A CN106437575 A CN 106437575A CN 201610965754 A CN201610965754 A CN 201610965754A CN 106437575 A CN106437575 A CN 106437575A
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- 238000001914 filtration Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 38
- 230000003628 erosive effect Effects 0.000 claims abstract description 27
- 210000002445 nipple Anatomy 0.000 claims description 77
- 239000000956 alloy Substances 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 206010020852 Hypertonia Diseases 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims description 3
- 210000004247 hand Anatomy 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract 6
- 238000013461 design Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a high-pressure fine filtering manifold and a filtering method thereof which are mainly suitable for being applied to an oil and gas well drilling and grinding cyclic operation ground process. The manifold mainly comprises two high-pressure filtering short sections, seven manual flat gate valves, two pipeline five-way joints, four pipeline three-way joints and a manifold pipeline; the filtering manifold is of a one-in one-out structure, the two sides are controlled by adopting the manual flat gate valves and the high-pressure filtering short sections, and the middle is directly arranged. The high-pressure fine filtering manifold has the benefits that under the filtering action of the two high-pressure filtering short sections, the convenient replacement of the short sections is ensured, the uninterrupted and continuous drilling and grinding fluid cyclic filtration treatment and control are realized, the filtering capacity, the filtering efficiency and the filtering quality of mechanical impurities in drilling and grinding fluid are greatly improved, the purposes of drilling and grinding fluid cyclic fine filtration and utilization are achieved, and the erosion damage caused by the large-sized mechanical impurities in the drilling and grinding fluid to the downstream choke manifold is avoided; the high-pressure fine filtering manifold is good in continuous cyclic filtration effect, strong in practicability and suitable for being applied to the oil and gas well drilling and grinding cycle operation ground process.
Description
Technical field
The present invention relates to a kind of high pressure fine filtering manifold and its filter method, it is primarily adapted for use in Oil/gas Well and bores mill circulation work
In industry ground flow.
Background technology
During conventional oil pipe and continuous tubing drill mill, there is bridging plug from the brill grinding fluid that pit shaft oil jacket annular space returns out broken
Bits, the mechanical admixture such as slips fragment, gravel require it is contemplated that boring grinding fluid and recycling, and need to carry out fine filtering to brill grinding fluid
Process.
At present, carry out returning out the capture of mechanical admixture in brill grinding fluid using chip catchment in ground flow, but capture effect
Really bad, in brill grinding fluid, still some large scale mechanical admixture is flowed in the choke manifold in downstream, seriously causes to throttle
The manifold part erosion such as manifold positive choke, needle-valve, pipe nipple, manual flat valve damages, and mechanical admixture in grinding fluid is bored in greatly impact
Treatment effect and throttling control effect.Accordingly, it would be desirable to design a kind of high pressure fine filtering manifold.
Content of the invention
Present invention aim to address Oil/gas Well bores mechanical admixture size in grinding fluid, content fine filtering and asking of controlling
Topic, reduces the mechanical admixture size in the brill grinding fluid flowing out from chip catchment and content, thus avoiding big in grinding fluid because boring
Size mechanical admixture damages to the erosion of downstream choke manifold.
For this reason, the invention provides a kind of high pressure fine filtering manifold, leading to a He including the pipeline five as manifold entrance
Pipeline five as manifold outlet leads to two, passes through three channel connections between pipeline five logical one and pipeline five logical two respectively, wherein,
Article one, passage is in line passage, and two other passage is serially connected with high-pressure filteration pipe nipple.
One of mouth of pipe that described pipeline five leads to one installs manual platform gate valve one as manifold entrance；Described pipe
One of mouth of pipe of Lu Wutong bis- is installed manual platform gate valve two and is exported as manifold；Pipeline five leads to the one two of which mouth of pipe
Respectively a pipeline threeway is connected by pipeline, this pipeline threeway connects another pipeline three by a high-pressure filteration pipe nipple
Logical, the one of mouth of pipe then leading to two again with pipeline five passes through pipeline communication；One of mouth of pipe that pipeline five leads to one passes through
The direct connecting pipeline of pipeline five leads to two mouth of pipe；Manual platform gate valve is respectively provided with all of connecting pipe.
Described high-pressure filteration pipe nipple includes high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two；
Three described passages are respectively：
Article first, passage by pipeline five lead to one a mouth of pipe, manual platform gate valve three, pipeline threeway one, high-pressure filteration pipe nipple
First, pipeline threeway two, manual platform gate valve four, a mouth of pipe of pipeline five logical two are sequentially communicated composition；
Article 2 passage by pipeline five lead to one a mouth of pipe, manual platform gate valve seven, pipeline five lead to two a mouth of pipe successively
Connection composition；
Article 3 passage leads to one mouth of pipe, manual platform gate valve five, pipeline threeway three, high-pressure filteration pipe nipple by pipeline five
2nd, pipeline threeway four, manual platform gate valve six, a mouth of pipe of pipeline five logical two are sequentially communicated composition.
Described high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two are cut built with the difference processed using line cutting technology
The erosion resistance hard alloy filter core cylinder of seam size.
Described high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two adopt 35CrMo material, and thermally treated hardness reaches
HBW197～235；Filter core cylinder in high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two adopts erosion resistance hard alloy carbon
Change tungsten YG8 material, thermally treated hardness reaches HRC92～95.
Described high-pressure filteration pipe nipple one and the external diameter 102mm of high-pressure filteration pipe nipple two, internal diameter 70mm, length 580mm；Cross
Filter filter core cylinder external diameter 54mm, internal diameter 40mm, length 465mm, linear cutter pore length 0.2～0.8mm, width 0.1～
0.3mm, pressure 70MPa.
Being connected by of described high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two is connected by appointing, and is 3 by appointing joint "-
1502；Other connect and all adopt flange to connect in manifold, and flange is 2-7/8, and " EUE R27 standard 350 flange, supporting bolt is
M27 × 3 × 175 stud.
The pipeline latus rectum of described manifold is 65mm, pressure-bearing 35MPa.
A kind of filter method of high pressure fine filtering manifold, comprises the steps：
（1）Pipeline five is led to and one is attached with wellhead casing pipe gate valve as the mouth of pipe of manifold entrance, using pipeline five logical two as
The mouth of pipe of manifold outlet is attached with downstream choke manifold；
（2）The erosion resistance hard alloy with different slot size is installed in high-pressure filteration pipe nipple one and high-pressure filteration pipe nipple two
Filter core cylinder；
（3）When boring mill circulation, turn off well mouth oil pipe gate valve, open wellhead casing pipe gate valve, open manual platform gate valve one, put down manually
Plate gate valve three, manual platform gate valve four, manual platform gate valve two, manual platform gate valve six and manual platform gate valve five, close handss
Dynamic flat gate valve seven, the size of mechanical admixture in the brill grinding fluid that pit shaft is returned out, content carry out fine filtering and control；In set
When pipe pressure is too high or filters manifold hypertonia, open manual platform gate valve seven, close manual platform gate valve three, manual platform
Gate valve four, manual platform gate valve six and manual platform gate valve five, high pressure bores the manifold outlet outflow that grinding fluid leads to two from pipeline five, releases
Put brill mill fluid pressure；
（4）After boring mill loop ends, termination of pumping pressure release, closed-in well muzzle sluice valve, dismounting, cleaning filtration manifold mesohigh are filtered short
Erosion resistance hard alloy filter core cylinder in section one and high-pressure filteration pipe nipple two, checks that all manual platform gate valves use feelings
Condition, maintenance or replacing erosion resistance hard alloy filter core cylinder, flat gate valve, to carry out again boring mill circulating filtration operation.
Beneficial effects of the present invention：This high pressure fine filtering manifold and its filter method that the present invention provides, by two
High-pressure filteration pipe nipple is it is ensured that boring mechanical admixture size in the brill grinding fluid in mill cyclic process, pit shaft returned out, containing after pressure break
The fine filtering of amount is changed convenient by the high-pressure filteration pipe nipple appointing joint it is achieved that not interrupting, continuously with control it is ensured that carrying
Carry out boring grinding fluid circulating filtration and process and control, drastically increase bore the filtration yield of mechanical admixture in grinding fluid, filter efficiency and
Filter quality, has reached the purpose bored grinding fluid circulating filtration and utilize.Because in high-pressure filteration pipe nipple, design and installation has difference to cut
The erosion resistance hard alloy filter core cylinder of seam size, erosive wear resistance is good, by switching different manual platform gate valve combinations
Realize mechanical admixture size, the fine filtering of content and control in the brill grinding fluid that pit shaft is returned out, reduce brill grinding fluid to downstream
The erosions such as choke manifold positive choke, needle-valve, pipe nipple, manual flat valve damage.Not only increase the filter effect filtering manifold,
Also reduce damage frequency and the replacement cost of downstream choke manifold consumable accessory, this filtration manifold continuous circulating filtration effect is good
Good, practical.
Brief description
Below with reference to accompanying drawing, the present invention is described in further details.
Fig. 1 is the distributed architecture schematic diagram of the present invention.
Description of reference numerals：1st, manual platform gate valve one；2nd, manual platform gate valve three；3rd, pipeline threeway one；4th, height presses through
Filter pipe nipple one；5th, pipeline threeway two；6th, manual platform gate valve four；7th, manual platform gate valve seven；8th, pipeline five leads to two；9th, put down manually
Plate gate valve two；10th, manual platform gate valve six；11st, pipeline threeway four；12nd, high-pressure filteration pipe nipple two；13rd, pipeline threeway three；14、
Manual platform gate valve five；15th, pipeline five leads to one.
Specific embodiment
Embodiment 1：
The present embodiment provides a kind of high pressure fine filtering manifold, leads to 1 and as manifold including the pipeline five as manifold entrance
The pipeline five of outlet leads to 28, and pipeline five leads between one 15 and pipeline five logical 28 respectively by three channel connections, wherein, one
Passage is in line passage, and two other passage is serially connected with high-pressure filteration pipe nipple.
One of mouth of pipe that described pipeline five leads to 1 installs manual platform gate valve 1 as manifold entrance；Described
One of mouth of pipe that pipeline five leads to 28 installs manual platform gate valve 29 as manifold outlet；Pipeline five leads to wherein the two of one 15
The individual mouth of pipe connects a pipeline threeway by pipeline respectively, and this pipeline threeway connects another pipe by a high-pressure filteration pipe nipple
Road threeway, the one of mouth of pipe then leading to 28 again with pipeline five passes through pipeline communication；Pipeline five leads to one 15 one of pipe
Mouth leads to 28 mouth of pipe by the direct connecting pipeline of pipeline five；Manual platform gate valve is respectively provided with all of connecting pipe.
This filtration manifold in the present embodiment is one-in-and-one-out structure, and both sides are all using manual flat valve and high-pressure filteration
Pipe nipple controls, middle in line.By being turned on and off different manual platform gate valve compound modes, select to be pre-installed in high pressure
Filter the erosion resistance hard alloy filter core cylinder of the different slot size in pipe nipple, control two-way fine filtering, a road in line,
Thus bore after realizing pressure break mechanical admixture size in brills grinding fluid that pit shaft is returned out in mill cyclic process, the fine filtering of content and
Control, prevent a part of large scale mechanical admixture in brill grinding fluid to be flowed in the choke manifold in downstream, cause choke manifold to fix
The erosions such as oil nozzle, needle-valve, pipe nipple, manual flat valve damage, it is to avoid improve because boring the presence of large scale mechanical admixture in grinding fluid
Ground flow pressure, increases ground flow pipeline operating risk, the different slot size in high-pressure filteration pipe nipple, determines filtration
Contaminant size, content, the high-pressure filteration pipe nipple by using slot size different with more tape swapping filtered, and realizes to boring mill
The fine filtering of liquid.
Embodiment 2：
In conjunction with shown in Fig. 1, in the present embodiment, high-pressure filteration pipe nipple includes high-pressure filteration pipe nipple 1 and high-pressure filteration pipe nipple 2 12,
Above-mentioned three passages are specifically respectively：
Article first, passage by pipeline five lead to 1 a mouth of pipe, manual platform gate valve 32, pipeline threeway 1, high-pressure filteration short
Save one 4, pipeline threeway 25, manual platform gate valve 46, pipeline five lead to 28 a mouth of pipe be sequentially communicated composition；
Article 2 passage leads to a mouth of pipe of one 15 mouth of pipe, manual platform gate valve 77, pipeline five logical 28 by pipeline five
It is sequentially communicated composition；
Article 3 passage leads to one 15 mouth of pipe, manual platform gate valve 5 14, pipeline threeway 3 13, high-pressure filteration by pipeline five
Pipe nipple 2 12, pipeline threeway 4 11, manual platform gate valve 6 10, a mouth of pipe of pipeline five logical 28 are sequentially communicated composition.
Embodiment 3：
High-pressure filteration pipe nipple 1 and high-pressure filteration pipe nipple 2 12 are built with the different slot size processed using line cutting technology
Erosion resistance hard alloy filter core cylinder, bores wellhead casing pipe pressure in mill cyclic process, bores mill discharge capacity and bore grinding fluid according to scene
Middle mechanical admixture dimensional conditions, install the erosion resistance hard alloy filter core of suitable slot size in high-pressure filteration pipe nipple
Cylinder.
The present embodiment provides the filtration manifold of a set of concrete size herein in connection with high-pressure filteration pipe nipple, in the present embodiment, described
The long 2100mm of manifold, wide 1450mm, high 520mm, pipeline latus rectum 65mm（2-9/16"）, pressure-bearing 35MPa（5000psi）；Height presses through
Filter pipe nipple 1 and high-pressure filteration pipe nipple 2 12 adopt 35CrMo material, and thermally treated hardness reaches HBW197～235；High-pressure filteration
Filter core cylinder in pipe nipple 1 and high-pressure filteration pipe nipple 2 12 adopts erosion resistance hard alloy tungsten carbide YG8 material, at heat
Reason hardness reaches HRC92～95, has very high erosive wear resistance, and using the different slot chi of wire cutting slotting technique processing
Very little, to realize the fine filtering to different size mechanical admixture in brill grinding fluid and control；High-pressure filteration nipple body and filtration filter
The processing of core cylinder is not allow for the defects such as crackle, pore.
Being connected by of high-pressure filteration pipe nipple 1 and high-pressure filteration pipe nipple 2 12 is connected by appointing, and is 3 by appointing joint "-
1502；Other connect and all adopt flange to connect in manifold, and flange is 2-7/8, and " EUE R27 standard 350 flange, supporting bolt is
M27 × 3 × 175 stud.In the present embodiment, the pressure voltage of high-pressure filteration pipe nipple 1 and high-pressure filteration pipe nipple 2 12 exists
More than 70MPa, external diameter 102mm, internal diameter 70mm, length 580mm；By a button-type 3 " -1502；Filter core cylinder external diameter 54mm, interior
Footpath 40mm, length 465mm, thread surface button-type 1-3/4-10UN-2A, linear cutter pore length 0.5mm, width 0.2mm,
Pressure 70MPa.
In filtration manifold in the present embodiment, the erosion resistance hard alloy filter core cylinder of installation in high-pressure filteration pipe nipple
Slot size selects to bore wellhead casing pipe pressure in mill cyclic process, bore mill discharge capacity and bore mechanical admixture chi in grinding fluid according to scene
Very little situation is determining.
Embodiment 4;
The present embodiment provides a kind of filter method of high pressure fine filtering manifold, comprises the steps：
（1）Pipeline five is led to 1 be attached with wellhead casing pipe gate valve as the mouth of pipe of manifold entrance, pipeline five is led to two（8）
The mouth of pipe as manifold outlet is attached with downstream choke manifold；
（2）The erosion resistance hard with different slot size is installed in high-pressure filteration pipe nipple 1 and high-pressure filteration pipe nipple 2 12
Alloy filter core cylinder；
（3）When boring mill circulation, turn off well mouth oil pipe gate valve, open wellhead casing pipe gate valve, open manual platform gate valve 1, manually
Flat gate valve 32, manual platform gate valve 46, manual platform gate valve 29, manual platform gate valve 6 10 and manual platform gate valve five
14, close manual platform gate valve 77, the size of mechanical admixture in the brill grinding fluid that pit shaft is returned out, content carry out fine filtering
With control；Too high or when filtering manifold hypertonia in casing pressure, open manual platform gate valve 77, close manual platform lock
Valve 32, manual platform gate valve 46, manual platform gate valve 6 10 and manual platform gate valve 5 14, high pressure bores grinding fluid and leads to from pipeline five
28 manifold outlet is flowed out, and mill fluid pressure is bored in release；
（4）After boring mill loop ends, termination of pumping pressure release, closed-in well muzzle sluice valve, dismounting, cleaning filtration manifold mesohigh are filtered short
Save the erosion resistance hard alloy filter core cylinder in one 4 and high-pressure filteration pipe nipple 2 12, check that all manual platform gate valves use
Situation, maintenance or replacing erosion resistance hard alloy filter core cylinder, flat gate valve, to carry out again boring mill circulating filtration work
Industry.
In sum, this high pressure fine filtering manifold of the present invention, by two high-pressure filteration pipe nipples it is ensured that pipe nipple
Change convenient it is achieved that not interrupting, being carried out continuously brill grinding fluid circulating filtration process and control, drastically increase machine in brill grinding fluid
The filtration yield of tool impurity, filter efficiency and filter quality, have reached and have bored the purpose that grinding fluid circulates fine filtering and utilization, it is to avoid
Because boring large scale mechanical admixture in grinding fluid, the erosion of downstream choke manifold is damaged, continuous circulating filtration is respond well, practicality
By force, it is suitably applied Oil/gas Well to bore in mill cycle operation ground flow.
The only illustration to the present invention exemplified as above, does not constitute the restriction to protection scope of the present invention, all
It is that same or analogous design belongs within protection scope of the present invention with the present invention.
Claims (9)
1. a kind of high pressure fine filtering manifold it is characterised in that：Lead to one including the pipeline five as manifold entrance（15）And conduct
The pipeline five of manifold outlet leads to two（8）, pipeline five logical（15）Lead to two with pipeline five（8）Between pass through three passages respectively even
Logical, wherein, a passage is in line passage, and two other passage is serially connected with high-pressure filteration pipe nipple.
2. high pressure fine filtering manifold as claimed in claim 1 it is characterised in that：Described pipeline five leads to one（15）Wherein
One mouth of pipe installs manual platform gate valve one（1）As manifold entrance；Described pipeline five leads to two（8）One of mouth of pipe peace
Dress manual platform gate valve two（9）As manifold outlet；Pipeline five leads to one（15）The two of which mouth of pipe connected by pipeline respectively
One pipeline threeway, this pipeline threeway connects another pipeline threeway by a high-pressure filteration pipe nipple, then again with pipeline five
Logical two（8）One of mouth of pipe pass through pipeline communication；Pipeline five leads to one（15）One of mouth of pipe directly connected by pipeline
Siphunculus Lu Wutong bis-（8）A mouth of pipe；Manual platform gate valve is respectively provided with all of connecting pipe.
3. high pressure fine filtering manifold as claimed in claim 1 or 2 it is characterised in that：Described high-pressure filteration pipe nipple includes
High-pressure filteration pipe nipple one（4）With high-pressure filteration pipe nipple two（12）；
Three described passages are respectively：
Article first, passage leads to one by pipeline five（15）A mouth of pipe, manual platform gate valve three（2）, pipeline threeway one（3）, high pressure
Filter pipe nipple one（4）, pipeline threeway two（5）, manual platform gate valve four（6）, pipeline five lead to two（8）A mouth of pipe be sequentially communicated
Composition；
Article 2 passage leads to one by pipeline five（15）A mouth of pipe, manual platform gate valve seven（7）, pipeline five lead to two（8）One
The individual mouth of pipe is sequentially communicated composition；
Article 3 passage leads to one by pipeline five（15）A mouth of pipe, manual platform gate valve five（14）, pipeline threeway three（13）, high
Press filtration pipe nipple two（12）, pipeline threeway four（11）, manual platform gate valve six（10）, pipeline five lead to two（8）A mouth of pipe according to
Secondary connection composition.
4. high pressure fine filtering manifold as claimed in claim 3 it is characterised in that：Described high-pressure filteration pipe nipple one（4）With
High-pressure filteration pipe nipple two（12）Erosion resistance hard alloy built with the different slot size processed using line cutting technology is filtered
Filter core cylinder.
5. high pressure fine filtering manifold as claimed in claim 4 it is characterised in that：Described high-pressure filteration pipe nipple one（4）With
High-pressure filteration pipe nipple two（12）Using 35CrMo material, thermally treated hardness reaches HBW197～235；High-pressure filteration pipe nipple one（4）
With high-pressure filteration pipe nipple two（12）Interior filter core cylinder adopts erosion resistance hard alloy tungsten carbide YG8 material, thermally treated hard
Degree reaches HRC92～95.
6. high pressure fine filtering manifold as claimed in claim 5 it is characterised in that：Described high-pressure filteration pipe nipple one（4）With
High-pressure filteration pipe nipple two（12）External diameter 102mm, internal diameter 70mm, length 580mm；Filter core cylinder external diameter 54mm, internal diameter 40mm,
Length 465mm, linear cutter pore length 0.2～0.8mm, width 0.1～0.3mm, pressure 70MPa.
7. high pressure fine filtering manifold as claimed in claim 3 it is characterised in that：Described high-pressure filteration pipe nipple one（4）With
High-pressure filteration pipe nipple two（12）Be connected by by appoint connect, by appoint joint be 3 " -1502；In manifold, other connect all using method
Blue connection, flange is 2-7/8, and " EUE R27 standard 350 flange, supporting bolt is M27 × 3 × 175 stud.
8. high pressure fine filtering manifold as claimed in claim 7 it is characterised in that：The pipeline latus rectum of described manifold is
65mm, pressure-bearing 35MPa.
9. a kind of filter method of the high pressure fine filtering manifold as described in any one in claim 1-8 it is characterised in that
Comprise the steps：
（1）Pipeline five is led to one（15）The mouth of pipe and wellhead casing pipe gate valve as manifold entrance are attached, and pipeline five is led to two
（8）The mouth of pipe as manifold outlet is attached with downstream choke manifold；
（2）In high-pressure filteration pipe nipple one（4）With high-pressure filteration pipe nipple two（12）Interior installation has the erosion resistance of different slot size
Hard alloy filter core cylinder；
（3）When boring mill circulation, turn off well mouth oil pipe gate valve, open wellhead casing pipe gate valve, open manual platform gate valve one（1）, handss
Dynamic flat gate valve three（2）, manual platform gate valve four（6）, manual platform gate valve two（9）, manual platform gate valve six（10）And manually
Flat gate valve five（14）, close manual platform gate valve seven（7）, the size of mechanical admixture in the brill grinding fluid that pit shaft is returned out, contain
Amount is filtered and is controlled；Casing pressure too high or filter manifold hypertonia when, open manual platform gate valve seven（7）, close
Close manual platform gate valve three（2）, manual platform gate valve four（6）, manual platform gate valve six（10）And manual platform gate valve five（14）,
High pressure bores grinding fluid and leads to two from pipeline five（8）Manifold outlet flow out, release bore mill fluid pressure；
（4）After boring mill loop ends, termination of pumping pressure release, closed-in well muzzle sluice valve, dismounting, cleaning filtration manifold mesohigh are filtered short
Section one（4）With high-pressure filteration pipe nipple two（12）Interior erosion resistance hard alloy filter core cylinder, checks all manual platform gate valves
Service condition, maintenance or replacing erosion resistance hard alloy filter core cylinder, flat gate valve, to carry out again boring mill circulating filtration
Operation.
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| CN201610965754.XA CN106437575A (en) | 2016-10-28 | 2016-10-28 | High-pressure fine filtering manifold and filtering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610965754.XA CN106437575A (en) | 2016-10-28 | 2016-10-28 | High-pressure fine filtering manifold and filtering method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538153A (en) * | 2019-01-21 | 2019-03-29 | 杰瑞能源服务有限公司 | A kind of Concentric Coiled Tubing hanger |
| 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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| CN206158629U (en) * | 2016-10-28 | 2017-05-10 | 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 | Meticulous filtration manifold of high pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109538153A (en) * | 2019-01-21 | 2019-03-29 | 杰瑞能源服务有限公司 | A kind of Concentric Coiled Tubing hanger |
| 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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Application publication date: 20170222 |