CN1955438A - Sand production oil well electric pump protector - Google Patents
Sand production oil well electric pump protector Download PDFInfo
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- CN1955438A CN1955438A CN 200510116870 CN200510116870A CN1955438A CN 1955438 A CN1955438 A CN 1955438A CN 200510116870 CN200510116870 CN 200510116870 CN 200510116870 A CN200510116870 A CN 200510116870A CN 1955438 A CN1955438 A CN 1955438A
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- electric pump
- interior pipe
- well electric
- oil
- pump protector
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Abstract
An electric pump protector for the sand production oil well is composed of an external pipe and an internal pipe, which are connected by an upper jointer and a lower jointer, a short centralizing jointer connected to lower end of internal pipe and in contact with external pipe for blocking the lower end of internal pipe and centralizing it, at least one nozzle on internal pipe, and at least one gas-oil flowing slot on the upper part of internal pipe.
Description
Technical field
The present invention relates to the tool of production under a kind of oil well, especially a kind of sand production oil well electric pump protector.
Background technology
In the oil exploitation manufacturing process, extensively adopt electric pump well to recover the oil.But because down-hole geological condition complexity, general oil well is the ubiquity phenomenon of shaking out in process of production.For the oil well of producing with electric submersible pump, when various factors caused the electric submersible pump termination of pumping, the sand in the oil pipe in the liquid can slowly be deposited under action of gravity on the pump head above the electric submersible pump outlet, often causes sand obstruction pump head, cause the electric submersible pump starting difficulty, even burn.
In the prior art,, must keep in repair and change by playing lower tubular column if the electric pump accident takes place.Under present field produces situation, play the lower tubular column operation continually like this, occupied a large amount of activity durations, significantly reduced the ordinary production time of oil well.
Summary of the invention
The purpose of this invention is to provide a kind of device, make the oil field can avoid sand setting to suppress the generation of pump accident in process of production, further reduce the down-hole treatment time of casualty.
In order to achieve the above object; the invention provides a kind of sand production oil well electric pump protector; this sand production oil well electric pump protector comprises outer tube and interior pipe; wherein said outer tube and interior pipe link together by a top connection and a lower contact; one set upright short circuit be connected described in the pipe lower end and with described outer tube in side contacts; play the described interior pipe of obstruction lower end and the effect of setting upright described interior pipe, at least one nozzle is arranged on the described interior pipe, and at least one oil gas flow path groove is arranged on the top of described interior pipe.
Pipe is provided with 8 nozzles in the above-mentioned sand production oil well electric pump protector, lays respectively at distance 1,3,5 and 7 meters, interior pipe lower end, and two at every place is symmetrically distributed, and such nozzle distributes and can go out the sand in the interior pipe to greatest extent.Nozzle adopts Hardmetal materials, have anti-ly wash away, corrosion-resistant, high temperature resistant characteristics.If interior pipe size is bigger, described nozzle can adopt the screw thread method to connect on inner pipe; If interior pipe size is less, can adopt welding or clinching method fixing on inner pipe.Interior pipe and two ends are the tubing thread of API standard, and length is about the length of a plain tubing, as is respectively about 9.1 meters and 9.5 meters.
In the above-mentioned sand production oil well electric pump protector; described oil gas flow path groove is roughly rectangular slot substantially; arc is processed at two; be that two ends are the strip groove of arc; described flow path groove upper end position is about 20cm apart from the screw thread distance of interior pipe upper end; two flow path grooves are symmetrically distributed on inner pipe relatively, and flow path groove length is about 15cm.Such oil gas runner groove shape and size can guarantee that oil gas passes through the interior sectional area of its area of passage greater than normal oil pipe, guarantees that simultaneously the pressure loss when oil gas passes through it is less.
In the above-mentioned sand production oil well electric pump protector; the described short circuit lower end of setting upright is a cone shape; the upper end is the standard oil pipe thread; be connected with described interior pipe lower end; the middle part is three wings; angle between the adjacent both wings is 120 degree, and three wings play centralizing function, and the space between the adjacent both wings is the crude oil passage.
Nozzle arrangements adopts sector structure in the above-mentioned sand production oil well electric pump protector, and liquid ejects the back and becomes the fan type to distribute, the sand in can washing well in the pipe, and the nozzle diameter of bore is generally between 4～12mm.According to the diameter of inner pipe size, select the suitable nozzle diameter.
Sand production oil well electric pump protector of the present invention compared with prior art possesses following advantage and characteristics:
1, sand production oil well electric pump protector of the present invention is simple and reasonable for structure, has long application life.Utilize the fluid jet principle, can take the sand in the interior pipe out of interior pipe by the liquid stream jet-action of nozzle, arrive and explain purpose by oneself, and do not need to rise in addition lower tubular column.
2, sand production oil well electric pump protector of the present invention; overcome the defective that known technology exists; in the manufacturing process in oil field, can reduce sand output well and suppress the generation of pump accident; further reduced the lower tubular column operation; both satisfy production requirement, simplified operation procedure again, significantly reduced the work operations amount; further save operating cost, for reduction Oilfield developing cost, development of fields provides technical guarantee efficiently.
Description of drawings
Fig. 1 is a sand production oil well electric pump protector structural representation of the present invention;
Fig. 2 is a sand production oil well electric pump protector production status schematic diagram of the present invention;
Fig. 3 is a sand production oil well electric pump protector termination of pumping view of the present invention;
Fig. 4 is a sand production oil well electric pump protector of the present invention turn on pump view again.
The specific embodiment
Now in conjunction with the accompanying drawings sand production oil well electric pump protector of the present invention is described in further detail.
Referring to Fig. 1, sand production oil well electric pump protector of the present invention comprises: outer tube 2, interior pipe 3, top connection 1, lower contact 6, set upright short circuit 5, nozzle 4 and oil gas flow path groove 7.
The outer tube 2 of this sand production oil well electric pump protector and interior pipe 3 link together by top connection 1, lower contact 6; set upright short circuit 5 and be connected interior pipe 3 lower ends; play and stop up described interior pipe lower end and set upright interior pipe effect, manage on 3 the top of pipe 3 in oil gas flow path groove 7 is arranged in nozzle 4 is arranged on.
On interior pipe 3, be distributed with 8 nozzles 4.Nozzle 4 is a carboloy nozzle, have anti-ly wash away, corrosion-resistant, high temperature resistant characteristics.If interior pipe 3 sizes are bigger, nozzle 4 can adopt the screw thread method to be connected on the interior pipe 3; If interior pipe 3 sizes are less, can adopt welding or clinching method to be fixed on the interior pipe 3.
Setting upright short circuit 5 lower ends is cone shape, and the upper end is the standard oil pipe thread, and the middle part is three wings, adjacent two interplane angles are 120 degree, the interior side contacts of the outside of three wings and outer tube 2 plays the effect of pipe 3 in setting upright, and the space that forms between each wing is the crude oil passage.
Oil gas flow path groove 7 is the cardinal principle rectangular slot, and arc is processed at its two, and upper end screw thread distance of the interior pipe 3 of end distance is 20cm on it.Be provided with two oil gas flow path grooves 7 on the top of interior pipe 3, be symmetrically distributed relatively, oil gas runner slot length is 15cm.
Referring to Fig. 2; when the oil well ordinary production; the crude oil that electric pump is extracted out is the inner duct of the lower contact 6 of process electric pump protector upwards; flow upward to the annular space between outer tube 2 and the interior pipe 3; upwards flow through the crude oil passage that forms between each wing of setting upright short circuit 5 by annular space; the inner duct of pipe 3 in a part is diverted to by nozzle 4 then; crude oil is upwards flowed respectively by the inner duct of annular space and interior pipe 3; crude oil in the last annular space is flowed to interior inner duct of managing top through upper nozzle 4 and oil gas flow path groove 7, and crude oil flows in the oil pipe on top through the inner duct of top connection 1.With reference to figure 3, when oil well in the termination of pumping process, the sand in the above oil pipe of electric submersible pump in the liquid can slowly be deposited to 3 li of the interior pipes of electric pump protector under action of gravity, and no longer sinks on the pump head above the electric submersible pump outlet.When electric pump is opened again, on pipe 3 sand settings, can take the sand in the pipe 3 in sinking to again out of in crude oil is ejected into by the nozzle on the interior pipe 4, on return ground, as shown in Figure 4.
Described outer tube, interior pipe, top connection, lower contact, the material of setting upright short circuit all are the OCTG steel, and intensity is at least greater than the J55 grade of steel, and preservative treatment all will be carried out in the surface.
The upper and lower end parts screw thread type of joint body is all API standard oil gas thread button up and down.The preferable Hardmetal materials that is chosen as of nozzle material.
Sand production oil well electric pump protector of the present invention has improved nozzle scour resistance and corrosion resistance, has improved the application life of sand production oil well electric pump protector.
Certainly the present invention is not limited thereto, as above-mentioned outer tube 2, interior pipe 3, top connection 1, lower contact 6, set upright short circuit 5, nozzle 4 and oil gas flow path groove 7, can be set to different-diameter according to the actual job situation, different size dimensions.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that invention asks for protection.
Claims (10)
1, a kind of sand production oil well electric pump protector; comprise outer tube and interior pipe; it is characterized in that; described outer tube and interior pipe link together by a top connection and a lower contact; one set upright short circuit be connected described in the pipe lower end and with described outer tube in side contacts; play the described interior pipe of obstruction lower end and the effect of setting upright described interior pipe, at least one nozzle is arranged on the described interior pipe, and at least one oil gas flow path groove is arranged on the top of described interior pipe.
2, oil sand output well electric pump protector according to claim 1, wherein, the length of described interior pipe is 9.1 meters, the length of described outer tube is 9.5 meters.
3, oil sand output well electric pump protector according to claim 1, wherein, the quantity of described nozzle is 8, lays respectively at distance 1,3,5 and 7 meters, interior pipe lower end, two at every place is symmetrically distributed.
4, oil sand output well electric pump protector according to claim 1, wherein, described nozzle adopts screw thread, welding or riveted joint mode to be fixed on the described interior pipe.
5, oil sand output well electric pump protector according to claim 1, wherein, described nozzle is that Hardmetal materials is made.
6, oil sand output well electric pump protector according to claim 1, wherein, described nozzle is a sector structure.
7, oil sand output well electric pump protector according to claim 1, wherein, described oil gas flow path groove is that two ends are the strip groove of arc.
8, according to claim 1 or 7 described oil sand output well electric pump protectors, wherein, the screw thread of pipe upper end is apart from being 20cm in the end distance on the described oil gas flow path groove, and the length of described oil gas flow path groove is 15cm.
9, oil sand output well electric pump protector according to claim 1, wherein, the quantity of described oil gas flow path groove is two, is symmetrically distributed relatively on the pipe in described.
10, oil sand output well electric pump protector according to claim 1, wherein, the described lower end of setting upright short circuit is a cone shape; the upper end is the tubing thread that is connected with described interior pipe lower end; the middle part is three wings, and adjacent two interplane angles are 120 degree, and the space between each wing is the crude oil passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101168706A CN100501119C (en) | 2005-10-27 | 2005-10-27 | Sand production oil well electric pump protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101168706A CN100501119C (en) | 2005-10-27 | 2005-10-27 | Sand production oil well electric pump protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1955438A true CN1955438A (en) | 2007-05-02 |
| CN100501119C CN100501119C (en) | 2009-06-17 |
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ID=38062948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101168706A Expired - Fee Related CN100501119C (en) | 2005-10-27 | 2005-10-27 | Sand production oil well electric pump protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100501119C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10132152B2 (en) | 2010-12-21 | 2018-11-20 | Forum Us, Inc. | Downhole apparatus and method |
| CN111852351A (en) * | 2020-06-23 | 2020-10-30 | 肖云东 | Oil field special buckle oil pipe short joint |
-
2005
- 2005-10-27 CN CNB2005101168706A patent/CN100501119C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10132152B2 (en) | 2010-12-21 | 2018-11-20 | Forum Us, Inc. | Downhole apparatus and method |
| US10132151B2 (en) | 2010-12-21 | 2018-11-20 | Forum Us, Inc. | Downhole apparatus and method |
| US10584571B2 (en) | 2010-12-21 | 2020-03-10 | Forum Us, Inc. | Downhole apparatus and method |
| CN111852351A (en) * | 2020-06-23 | 2020-10-30 | 肖云东 | Oil field special buckle oil pipe short joint |
| CN111852351B (en) * | 2020-06-23 | 2022-02-25 | 大庆市奈固石油机械设备制造有限公司 | Oil field special buckle oil pipe short joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100501119C (en) | 2009-06-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20111027 |