CN2900777Y - Nano viscosity reducing and anti-sand device - Google Patents
Nano viscosity reducing and anti-sand device Download PDFInfo
- Publication number
- CN2900777Y CN2900777Y CN 200620091010 CN200620091010U CN2900777Y CN 2900777 Y CN2900777 Y CN 2900777Y CN 200620091010 CN200620091010 CN 200620091010 CN 200620091010 U CN200620091010 U CN 200620091010U CN 2900777 Y CN2900777 Y CN 2900777Y
- Authority
- CN
- China
- Prior art keywords
- oil
- parent tube
- viscosity reduction
- sand
- holes
- 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.)
- Expired - Fee Related
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to a mill micron viscosity reduction and sand-proof device for viscosity reduction and sand-proof of a thick oil well, which comprises a base tube. Outside screws are arranged on ends of the base tube, and holes with limited round stages are even distributed. Filter materials of metal wire or short wire formed by extrusion are filled in the holes, and the technology main points are that a filter screen layer and a block positioning layer with holes are arranged on the outside filter materials, wherein, the block positioning layer is hinged on the edge between the holes and the outer wall. Ferro-boron magnetic bodies are correspondingly arranged on the inner wall of the base tube, thereby the viscosity of crude oil is reduced, in particular to the oil-sand separation of the thick oil. No chemical thinner is increased, and the production of the oil well and the oil outlet are improved. The utility model has the advantages that structure is reasonable, filter effect is good, service life is long, clogging is not easy, and applicable field is wide.
Description
Technical field
The utility model belongs to a kind of filtration crude oil and reduces its viscosity equipment technical field, and is specifically a kind of in the oil exploitation operation, is used for heavy crude well is carried out the nano-viscosity reduction sand control installation of an interior viscosity reduction and the filtration of micropore sand control.
Background technology
As everyone knows, the oil-sand isolated by filtration be in the petroleum industry oil producing operation the technical problem that must solve.The applicant has applied for a utility model patent in 2005, its patent No. is respectively: ZL200520089708.5.This patent is protected to the effect that: have at two ends and be evenly distributed with the through hole that includes spacing round platform on the externally threaded parent tube; in through hole, be filled with wire or short silk filtering material through extrusion modling; the outside of this filtering material also is respectively equipped with the catch alignment layers that mesh-like is filtered spacing layer and band oil through, and wherein the catch alignment layers is welded on through hole and outer wall intersecting edge place.At present, the wire sand control screen of said structure also is being widely used as sand control filter wherein, but this structure just seems powerless for the oil-sand isolated by filtration of viscous crude, in traditional thickened oil recovery operation process, in order to reduce the viscosity of viscous crude, the general method of injecting steam or adding thinner that adopts reduces viscosity of thickened oil, has increased production process like this, improved cost for oil production, and production efficiency is low.
Summary of the invention
The purpose of this utility model provides a kind of being used for heavy crude well is carried out the nano-viscosity reduction sand control installation that early stage, viscosity reduction and micropore sand control filtered.
The purpose of this utility model is achieved in that it includes a parent tube, two ends at parent tube have external screw thread, on parent tube, be evenly distributed with the through hole that includes spacing round platform, in through hole, be filled with wire or short silk filtering material through extrusion modling, it is characterized in that: also be respectively equipped with the catch alignment layers that mesh-like is filtered spacing layer and band oil through in the outside of filtering material, wherein the catch alignment layers is welded on through hole and outer wall intersecting edge place; Inboard correspondence at parent tube is distributed with the high magnetic of neodymium iron boron.
For the ease of installing, then also be provided with a bushing pipe, the corresponding high magnetic of neodymium iron boron that adopts nanometer technology to make that is distributed with on this bushing pipe outer wall in the inboard of parent tube.The two ends of bushing pipe are welded on the two ends of parent tube inboard.
As required, also be symmetrically arranged with a lead-in in the inboard of parent tube, correspondence is distributed with the high magnetic of neodymium iron boron on this lead-in.Can reduce flow resistance relatively like this, increase the flowability of crude oil, thereby the oil-sand that has increased crude oil filters separating rate.
The utility model can reduce the viscosity of crude oil owing to the inboard correspondence at parent tube is distributed with the high magnetic of neodymium iron boron, and particularly the oil-sand for viscous crude separates, and does not need to increase any chemical viscosity reduction agent, thereby improves oil well yield and oil transportation amount greatly.The magnetic field intensity of the high magnetic of this neodymium iron boron is the viscosity of based on crude and deciding, and its specification is to decide according to the caliber of parent tube.
The outside of extrusion modling wire filtering material is respectively equipped with the catch alignment layers that mesh-like is filtered spacing layer and band oil through, therefore has wire filtering material intensity height, and screen layer also plays the attached effect that helps filtration, the catch alignment layers is welded on the parent tube by the mode of welding securely, make crude oil earlier by the oil through on the catch alignment layers, filter and enter in the parent tube through screen layer and wire again, thereby oil-sand is separated.This structure also can be according to the size of sand production in oil amount, and its filtered version is modulated into the screen casing of wire lath slot formula filter sand function.The utlity model has rational in infrastructure, good filtration effect, filtering material uses difficult drop-off in the down-hole, uses the longevity long.Be difficult for to stop up characteristics such as range of application is wide.This structure not only be suitable for various wells in advance, final sand-proofing, also be applicable to the sand control of horizontal well open hole well.
Description of drawings
Fig. 1 is that the structural representation sketch cuts open in office of the present utility model
Fig. 2 is that A-A among Fig. 1 is to amplification profile
To be described in further detail utility model by example below; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.
The specific embodiment
Example 1
By shown in Figure 1, among the figure 1 is parent tube, having tapering at the two ends of parent tube 1 is than 1: 16 external screw thread 2, on parent tube, be evenly distributed with the through hole 3 that includes spacing round platform, in through hole, from inside to outside be filled with the filtering material 4 of wire compression moulding successively, mesh-like is filtered the catch alignment layers 6 of spacing layer 5 and band oil through, and wherein the catch alignment layers mode that adopts full weld to connect is welded on through hole and outer wall intersecting edge place securely with catch.Also be symmetrically arranged with a lead-in 8 in the inboard of parent tube 1, the corresponding high magnetic 9 of neodymium iron boron that adopts nanometer technology and make that is distributed with on this lead-in by sintering.In addition, 7 among Fig. 2 is pad.This structure is then selected the high magnetic of neodymium iron boron of 8-15 millimeters thick for use for the oil-sand separator of caliber at Φ 140-200mm, and is little to the caliber influence like this; In 8000-10000mpa.s (millipoise second) scope, select 50-100 magnetic energy product (MGOe) for viscosity for use, the density of this magnet is 〉=7.5g/cm
3The installation of this structure, using method and effect are identical with the sand control installation of existing same domain
This structure is evenly distributed in the high magnetic of above-mentioned neodymium iron boron on the petroleum pipeline inwall of crude oil as required, realizes that crude oil reduces viscosity in course of conveying, can improve the flowability of crude oil greatly, thereby increases the transporting velocity of crude oil.
Claims (3)
1, a kind of being used for carried out the nano-viscosity reduction sand control installation that early stage, viscosity reduction and micropore sand control filtered to heavy crude well, it includes a parent tube, two ends at parent tube have external screw thread, on parent tube, be evenly distributed with the through hole that includes spacing round platform, in through hole, be filled with wire or short silk filtering material through extrusion modling, it is characterized in that: also be respectively equipped with the catch alignment layers that mesh-like is filtered spacing layer and band oil through in the outside of filtering material, wherein the catch alignment layers is welded on through hole and outer wall intersecting edge place; Inboard correspondence at parent tube is distributed with the high magnetic of neodymium iron boron.
2, nano-viscosity reduction sand control installation according to claim 1 is characterized in that: the inboard at parent tube also is provided with a bushing pipe, and correspondence is distributed with the high magnetic of neodymium iron boron on this bushing pipe outer wall.
3, nano-viscosity reduction sand control installation according to claim 1 is characterized in that: the inboard at parent tube also is symmetrically arranged with a lead-in, and correspondence is distributed with the high magnetic of neodymium iron boron on this lead-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091010 CN2900777Y (en) | 2006-05-26 | 2006-05-26 | Nano viscosity reducing and anti-sand device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091010 CN2900777Y (en) | 2006-05-26 | 2006-05-26 | Nano viscosity reducing and anti-sand device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900777Y true CN2900777Y (en) | 2007-05-16 |
Family
ID=38084942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091010 Expired - Fee Related CN2900777Y (en) | 2006-05-26 | 2006-05-26 | Nano viscosity reducing and anti-sand device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900777Y (en) |
-
2006
- 2006-05-26 CN CN 200620091010 patent/CN2900777Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |