CN203559883U - Pre-filter type oil screen pipe - Google Patents
Pre-filter type oil screen pipe Download PDFInfo
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- CN203559883U CN203559883U CN201320709902.3U CN201320709902U CN203559883U CN 203559883 U CN203559883 U CN 203559883U CN 201320709902 U CN201320709902 U CN 201320709902U CN 203559883 U CN203559883 U CN 203559883U
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- filter
- screen
- inlet pipe
- oil
- petroleum
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Abstract
The utility model discloses a pre-filter type oil screen pipe. The pre-filter type oil screen pipe comprises a slantly arranged inlet pipe and a pre-filter cavity connected with the top end of the inlet pipe, wherein the top part of the pre-filter cavity is a horizontal plane; a top outlet of the inlet pipe is projected to the inner surface of the top of the pre-filter cavity in the axial direction; a connecting pipe is arranged at the bottom of the pre-filter cavity and connected with a sand storage barrel, and directly faces the position where the top outlet of the inlet pipe is projected to the top of the pre-filter cavity; and the pre-filter type oil screen pipe further comprises a transition pipe connected with the pre-filter cavity and a filter drum connected with the transition pipe, a filter screen is arranged in the filter drum, and the top of the filter drum is connected with an oil conveying pipeline. According to the pre-filter oil screen pipe, larger gravels in the oil are cleaned up before the oil is filtered, so that the gravels are prevented from being compacted with the filter screen under the driving of the oil and damaging the filter screen, and the service life of the oil screen pipe is greatly prolonged.
Description
Technical field
The utility model relates to a kind of Petroleum screen tube, specifically refers to pre-flock formula Petroleum screen tube.
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: around being uniformly distributed in, sieve on bar 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 separation with the sandstone on stratum.In Petroleum screen tube, be provided with screen pack, for separating of the sand in oil and stratum.But when 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.
Utility model content
The purpose of this utility model is to provide pre-flock formula Petroleum screen tube, makes the Petroleum screen tube larger gravel of filtering volume in advance, prevents that large volume gravel from directly contacting with filter screen, increases the application life of Petroleum screen tube.
The purpose of this utility model is achieved through the following technical solutions:
Pre-flock formula Petroleum screen tube, 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 of inlet pipe exports the top inner surface that is axially projected to 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 is the position in the projection of the top of pre-filter chamber to the top outlet of inlet pipe just; Also comprise the transition conduit being connected with pre-filter chamber and the filter cylinder being connected with transition conduit, be provided with filter screen in filter cylinder, the top of filter cylinder is connected with petroleum transportation pipeline.The utility model is improving Petroleum screen tube, in advance the gravel of larger volume in filtering oil, gravel flows in the middle of pre-flock chamber from inlet pipe fast with petroleum liquid, 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, due to the petroleum liquid of 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, when 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 utility model has just been 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 chemical resistance, the fatigue resistance of outstanding impact resistance, stress cracking resistance, self lubricity, brilliance, 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, the flow that reduces petroleum streams and cross transition conduit with this, 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 front 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 utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model pre-flock formula Petroleum screen tube, 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 of inlet pipe exports the top inner surface that is axially projected to 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 is the position in the projection of the top of pre-filter chamber to the top outlet of inlet pipe just; Also comprise the transition conduit being connected with pre-filter chamber and the filter cylinder being connected with transition conduit, be provided with filter screen in filter cylinder, the top of filter cylinder is connected with petroleum transportation pipeline; The utility model has just been 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 utility model pre-flock formula Petroleum screen tube, 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 utility model pre-flock formula Petroleum screen tube, is arranged on the number of plies of filter screen 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 utility model embodiment, forms the application's a part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation.
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 purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment
As shown in Figure 1, the utility model pre-flock formula Petroleum screen tube, 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 of inlet pipe 1 exports the top inner surface that is axially projected to 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 is the position in the projection of the top of pre-filter chamber 2 to the top outlet of inlet pipe 1 just; Also comprise the transition conduit 5 being connected with pre-filter chamber 2 and the filter cylinder 6 being connected with transition conduit 5, be provided with filter screen 7 in filter cylinder 6, the top of filter cylinder 6 is connected with petroleum transportation pipeline 8.The utility model is improving Petroleum screen tube, in advance the gravel of larger volume in filtering oil, gravel flows in the middle of pre-flock chamber 2 from inlet pipe 1 fast with petroleum liquid, 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, due to the petroleum liquid of 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, when 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 utility model has just been 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 chemical resistance, the fatigue resistance of outstanding impact resistance, brilliance, with the lining 11 of its making, can guarantee the stability of pre-filter chamber 2 internal constructions.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present utility model; and be not used in limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. pre-flock formula Petroleum screen tube, 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 of inlet pipe (1) exports the top inner surface that is axially projected to 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) is the position in the projection of the top of pre-filter chamber (2) to the top outlet of inlet pipe (1) just; Also comprise the transition conduit (5) being connected with pre-filter chamber (2) and the filter cylinder (6) being connected with transition conduit (5), be provided with filter screen (7) in filter cylinder (6), the top of filter cylinder (7) is connected with petroleum transportation pipeline (8).
2. pre-flock formula Petroleum screen tube 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. pre-flock formula Petroleum screen tube according to claim 1, is characterized in that: in described transition conduit (5), be also provided with diaphragm valve (9).
4. pre-flock formula Petroleum screen tube 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 pre-flock formula Petroleum screen tube 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 |
|---|---|---|---|
| CN201320709902.3U CN203559883U (en) | 2013-11-12 | 2013-11-12 | Pre-filter type oil screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709902.3U CN203559883U (en) | 2013-11-12 | 2013-11-12 | Pre-filter type oil screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559883U true CN203559883U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320709902.3U Expired - Fee Related CN203559883U (en) | 2013-11-12 | 2013-11-12 | Pre-filter type oil screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573228A (en) * | 2013-11-12 | 2014-02-12 | 成都科盛石油科技有限公司 | Petroleum filtering mechanism with pre-filtering function |
-
2013
- 2013-11-12 CN CN201320709902.3U patent/CN203559883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573228A (en) * | 2013-11-12 | 2014-02-12 | 成都科盛石油科技有限公司 | Petroleum filtering mechanism with pre-filtering function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |