CN103573228A - Petroleum filtering mechanism with pre-filtering function - Google Patents
Petroleum filtering mechanism with pre-filtering function Download PDFInfo
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- CN103573228A CN103573228A CN201310558689.5A CN201310558689A CN103573228A CN 103573228 A CN103573228 A CN 103573228A CN 201310558689 A CN201310558689 A CN 201310558689A CN 103573228 A CN103573228 A CN 103573228A
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- Prior art keywords
- filtering
- petroleum
- inlet pipe
- filter
- oil
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- 239000003208 petroleum Substances 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 title abstract description 30
- 230000007704 transition Effects 0.000 claims abstract description 18
- 238000011045 prefiltration Methods 0.000 claims description 34
- 244000144992 flock Species 0.000 claims description 22
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 21
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The invention discloses a petroleum filtering mechanism with a pre-filtering function. The petroleum filtering mechanism with the pre-filtering function comprises an inlet pipe which is arranged in an inclined mode and a pre-filtering cavity connected with the top end of the inlet pipe. The top of the pre-filtering cavity is a horizontal plane, and an outlet of the top end of the inlet pipe is projected to the inner surface of the top of the pre-filtering cavity in the axial direction of the inlet pipe. The bottom of the pre-filtering cavity is provided with a connection pipe which is connected with a sand storage cylinder, and the connection pipe is right opposite to the projecting position of the outlet of the top end of the inlet pipe on the top of the pre-filtering cavity. The petroleum filtering mechanism further comprises a transition pipe connected with the pre-filtering cavity and a filtering cylinder connected with the transition pipe. A filtering net is arranged in the filtering cylinder, and the top of the filtering cylinder is connected with a petroleum conveying pipeline. According to the petroleum filtering mechanism with the pre-filtering function, gravel with large sizes in petroleum is removed before filtering the petroleum, the gravel is prevented from being collided with the filtering net when being driven by the petroleum, and therefore the filtering net is prevented from being damaged and the service life of a petroleum screen pipe is greatly prolonged.
Description
Technical field
The present invention relates to a kind of Petroleum screen tube, specifically refer to the oil filter mechanism with pre-flock function.
Background technology
In petroleum drilling and mining operation, screen casing is a kind of important equipment, and the Main Function of Petroleum screen tube is exactly sand prevention, and because recover petroleum makes the residing geology of oil well, the grade of steel of the pipe that sand bed difference adopts is different with kind.At present, using more screen casing is wire-wrapped screen, and the manufacture method of this screen casing is: be uniformly distributed in sieve on bar around or the metal liner of perforate on be wound around the steel wire in certain cross section and weld, and reserve certain gap as sieve aperture.Although this manufacture method is widely used at home, but there are some problems in this screen casing when going into the well, especially when the curved segment of suppressing by high angle hole or horizontal well, inevitably to bump, push and rub with the borehole wall or sleeve pipe, easily there is sleave phenomenon, cause screen casing to damage or gap distortion, cause completion quality and sand controlling result to reduce or lost efficacy.
Petroleum screen tube is to be installed on oil well bottom, for exploitation oil is out carried out separated with the sandstone on stratum.In Petroleum screen tube, be provided with screen pack, for separating of the sand in oil and stratum.But while containing the larger gravel of volume in oil, gravel can clash into filter screen under the drive of petroleum streams, thereby destroy filter screen, greatly reduce the application life of Petroleum screen tube.
Summary of the invention
The object of the present invention is to provide the oil filter mechanism with pre-flock function, make the Petroleum screen tube larger gravel of filtering volume in advance, prevent that large volume gravel from directly contacting with filter screen, increase the application life of Petroleum screen tube.
Object of the present invention is achieved through the following technical solutions:
The oil filter mechanism with pre-flock function, comprise the inlet pipe being obliquely installed and the pre-filter chamber being connected with inlet pipe top, the top of described pre-filter chamber is horizontal plane, the top outlet of inlet pipe is axially projected to the top inner surface of pre-filter chamber along it, the bottom of pre-filter chamber is provided with tube connector, tube connector is connected with cartridge, and tube connector exports the position in the projection of the top of pre-filter chamber over against the top of inlet pipe; Also comprise and the transition conduit being connected with pre-filter chamber and the filter cylinder being connected with transition conduit in filter cylinder, are provided with filter screen, the top of filter cylinder is connected with petroleum transportation pipeline.The present invention is improving Petroleum screen tube, in advance the gravel of larger volume in filtering oil, gravel with petroleum liquid in the middle of inlet pipe flows into pre-flock chamber fast, on the horizontal plane of pre-flock top of chamber, the larger gravel of volume self with larger kinetic energy rushes at horizontal plane with petroleum liquid, petroleum liquid due to the relative equating volume of gravel, the kinetic energy having is relatively large, therefore after both impact levels faces, the speed of gravel bounce-back, through tube connector, drop in cartridge, and petroleum liquid also enters into cartridge and float over gravel top, while filling with petroleum liquid in pre-filter chamber and cartridge, petroleum liquid through a pre-flock enters into filter cylinder by transition conduit, under accurate filtration finally by screen pack, petroleum liquid flows through oil transport pipeline, transfer to other places, the present invention has just removed the larger gravel of volume in oil before oil filters, and has avoided gravel to clash into filter screen under the drive of oil, thereby destroys filter screen, has greatly increased the application life of Petroleum screen tube.
On the top of described inlet pipe, export in the top inner surface that is axially projected to pre-filter chamber along it lining is installed, described lining is high molecular weight polyethylene board material.In the outlet of the top of inlet pipe, along it, be axially projected in the top inner surface of pre-filter chamber, with the gravel of larger volume and liquid petroleum, mix it is clashed into, the mechanical performance of high molecular weight polyethylene board material is higher than general high density polyethylene (HDPE), there is outstanding impact resistance, stress cracking resistance, self lubricity, remarkable chemical resistance, fatigue resistance, with the lining of its making, can guarantee the stability of pre-filter chamber internal construction.
In described transition conduit, be also provided with diaphragm valve.Diaphragm valve is a kind of block valve of special shape, and its opening and closing element is a barrier film made from soft material, and body cavity and valve gap inner chamber and driver part are separated; In transition conduit, with bolt, connect on compression piece, compression piece is operated and move up and down by valve rod, when compression piece rises, diaphragm is just held high, carries, when compression piece declines and transition conduit PetroChina Company Limited. is realized, diaphragm is just pressed on valve body weir or is pressed in the bottom of profile, with this, reduce the flow that petroleum streams is crossed transition conduit, diaphragm valve is applicable to the adjusting of oil transportation amount size, is conducive to reduce rapid flow petroleum liquid to tube wall or the impact of oil pipe bend.
Also comprise the butterfly valve that is arranged on cartridge bottom.When the gravel in cartridge is stacked into a certain degree, need to clear up, the butterfly valve that is arranged on cartridge bottom can be opened fast, facilitates staff to clear up fast the gravel of accumulation, guarantees stable the carrying out of pre-flock operation of liquid petroleum.
The number of plies of described filter screen is at least 3 layers.At oil, carry out after pre-flock operation, by filter cylinder, again oil is accurately filtered, because oil flow is with larger kinetic energy, can cause certain impact to filter screen, in general before two-layer strainer filtering poor effect, and easily impaired, so the number of plies of filter screen is arranged on more than 3 layers, can guarantee the high efficiency of accurately filtering for the second time, also can avoid frequently dismantling pipeline to change filter screen, reduced maintenance cost simultaneously.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention has the oil filter mechanism of pre-flock function, comprise the inlet pipe being obliquely installed and the pre-filter chamber being connected with inlet pipe top, the top of described pre-filter chamber is horizontal plane, the top outlet of inlet pipe is axially projected to the top inner surface of pre-filter chamber along it, the bottom of pre-filter chamber is provided with tube connector, tube connector is connected with cartridge, and tube connector exports the position in the projection of the top of pre-filter chamber over against the top of inlet pipe; Also comprise and the transition conduit being connected with pre-filter chamber and the filter cylinder being connected with transition conduit in filter cylinder, are provided with filter screen, the top of filter cylinder is connected with petroleum transportation pipeline; The present invention has just removed the larger gravel of volume in oil before oil filters, and has avoided gravel to clash into filter screen under the drive of oil, thereby destroys filter screen, has greatly increased the application life of Petroleum screen tube;
2, the present invention has the oil filter mechanism of pre-flock function, when the gravel in cartridge is stacked into a certain degree, need to clear up, the butterfly valve that is arranged on cartridge bottom can be opened fast, facilitate staff to clear up fast the gravel of accumulation, guarantee stable the carrying out of pre-flock operation of liquid petroleum;
3, the present invention has the oil filter mechanism of pre-flock function, and the number of plies of filter screen is arranged on more than 3 layers, can guarantee for the second time the accurately high efficiency of filtration, also can avoid frequently dismantling pipeline to change filter screen simultaneously, has reduced maintenance cost.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms the application's a part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention.
Mark and corresponding component title in accompanying drawing:
1-inlet pipe, the pre-filter chamber of 2-, 3-tube connector, 4-cartridge, 5-transition conduit, 6-filter cylinder, 7-filter screen, 8-oil transport pipeline, 9-diaphragm valve, 10-butterfly valve.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment
As shown in Figure 1, the present invention has the oil filter mechanism of pre-flock function, comprise the inlet pipe 1 being obliquely installed and the pre-filter chamber 2 being connected with inlet pipe 1 top, the top of pre-filter chamber 2 is horizontal plane, the top outlet of inlet pipe 1 is axially projected to the top inner surface of pre-filter chamber 2 along it, the bottom of pre-filter chamber 2 is provided with tube connector 3, and tube connector 3 is connected with cartridge 4, and tube connector 3 exports the position in the projection of the top of pre-filter chamber 2 over against the top of inlet pipe 1; Also comprise and the transition conduit 5 being connected with pre-filter chamber 2 and the filter cylinder 6 being connected with transition conduit 5 in filter cylinder 6, are provided with filter screen 7, the top of filter cylinder 6 is connected with petroleum transportation pipeline 8.The present invention is improving Petroleum screen tube, in advance the gravel of larger volume in filtering oil, gravel with petroleum liquid in the middle of inlet pipe 1 flows into pre-flock chamber 2 fast, on the horizontal plane at pre-filter chamber 2 tops, the larger gravel of volume self with larger kinetic energy rushes at horizontal plane with petroleum liquid, petroleum liquid due to the relative equating volume of gravel, the kinetic energy having is relatively large, therefore after both impact levels faces, the speed of gravel bounce-back, through tube connector 3, drop in cartridge 4, and petroleum liquid also enters into cartridge 4 and float over gravel top, while filling with petroleum liquid in pre-filter chamber 2 and cartridge 4, petroleum liquid through a pre-flock enters into filter cylinder by transition conduit 5, under accurate filtration finally by screen pack 7, petroleum liquid flows through oil transport pipeline 8, transfer to other places, the present invention has just removed the larger gravel of volume in oil before oil filters, and has avoided gravel to clash into filter screen 7 under the drive of oil, thereby destroys filter screen 7, has greatly increased the application life of Petroleum screen tube.
Wherein, also comprise and be arranged on the butterfly valve 10 of cartridge 4 bottoms and be arranged on the diaphragm valve 9 in transition conduit 5, diaphragm valve 9 is applicable to the adjusting of oil transportation amount size, is conducive to reduce rapid flow petroleum liquid to tube wall or the impact of oil pipe bend; When the gravel in cartridge 4 is stacked into a certain degree, need to clear up, the butterfly valve 10 that is arranged on cartridge 4 bottoms can be opened fast, facilitates staff to clear up fast the gravel of accumulation, guarantees stable the carrying out of pre-flock operation of liquid petroleum; In the outlet of the top of inlet pipe 1, along it, be axially projected in the top inner surface of pre-filter chamber 2, with the gravel of larger volume and liquid petroleum, mix it is clashed into, the mechanical performance of high molecular weight polyethylene board material is higher than general high density polyethylene (HDPE), there is outstanding impact resistance, remarkable chemical resistance, fatigue resistance, with the lining 11 of its making, can guarantee the stability of pre-filter chamber 2 internal constructions.
The above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. the oil filter mechanism with pre-flock function, comprise the inlet pipe (1) being obliquely installed and the pre-filter chamber (2) being connected with inlet pipe (1) top, it is characterized in that: the top of described pre-filter chamber (2) is horizontal plane, the top outlet of inlet pipe (1) is axially projected to the top inner surface of pre-filter chamber (2) along it, the bottom of pre-filter chamber (2) is provided with tube connector (3), tube connector (3) is connected with cartridge (4), and tube connector (3) exports the position in the projection of the top of pre-filter chamber (2) over against the top of inlet pipe (1); Also comprise and the transition conduit (5) being connected with pre-filter chamber (2) and the filter cylinder (6) being connected with transition conduit (5) in filter cylinder (6), are provided with filter screen (7), the top of filter cylinder (7) is connected with petroleum transportation pipeline (8).
2. the oil filter mechanism with pre-flock function according to claim 1, it is characterized in that: on the top of described inlet pipe (1), export in the top inner surface that is axially projected to pre-filter chamber (2) along it lining (11) is installed, described lining (11) is high molecular weight polyethylene board material.
3. the oil filter mechanism with pre-flock function according to claim 1, is characterized in that: in described transition conduit (5), be also provided with diaphragm valve (9).
4. the oil filter mechanism with pre-flock function according to claim 1, is characterized in that: also comprise the butterfly valve (10) that is arranged on cartridge (4) bottom.
5. according to the oil filter mechanism with pre-flock function described in claim 1 ~ 4 any one, it is characterized in that: the number of plies of described filter screen (7) is at least 3 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558689.5A CN103573228A (en) | 2013-11-12 | 2013-11-12 | Petroleum filtering mechanism with pre-filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558689.5A CN103573228A (en) | 2013-11-12 | 2013-11-12 | Petroleum filtering mechanism with pre-filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573228A true CN103573228A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310558689.5A Pending CN103573228A (en) | 2013-11-12 | 2013-11-12 | Petroleum filtering mechanism with pre-filtering function |
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| Country | Link |
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| CN (1) | CN103573228A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478484A (en) * | 1991-07-25 | 1995-12-26 | Serck Baker Limited | Apparatus and method including a hydrocyclone separator in combination with a tubular filter |
| CN2915224Y (en) * | 2006-02-23 | 2007-06-27 | 陈辰 | Oil gas filter |
| CN200984478Y (en) * | 2006-11-29 | 2007-12-05 | 中国海洋石油总公司 | Rotational flow type fine purification apparatus |
| CN201701798U (en) * | 2010-05-10 | 2011-01-12 | 中国石油天然气股份有限公司 | Self-cleaning type sand setting filter |
| CN103291256A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Double-pipe petroleum screen |
| CN203559883U (en) * | 2013-11-12 | 2014-04-23 | 成都科盛石油科技有限公司 | Pre-filter type oil screen pipe |
-
2013
- 2013-11-12 CN CN201310558689.5A patent/CN103573228A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478484A (en) * | 1991-07-25 | 1995-12-26 | Serck Baker Limited | Apparatus and method including a hydrocyclone separator in combination with a tubular filter |
| CN2915224Y (en) * | 2006-02-23 | 2007-06-27 | 陈辰 | Oil gas filter |
| CN200984478Y (en) * | 2006-11-29 | 2007-12-05 | 中国海洋石油总公司 | Rotational flow type fine purification apparatus |
| CN201701798U (en) * | 2010-05-10 | 2011-01-12 | 中国石油天然气股份有限公司 | Self-cleaning type sand setting filter |
| CN103291256A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Double-pipe petroleum screen |
| CN203559883U (en) * | 2013-11-12 | 2014-04-23 | 成都科盛石油科技有限公司 | Pre-filter type oil screen pipe |
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Application publication date: 20140212 |