CN1555114A - Cable protector for under well oil pump - Google Patents
Cable protector for under well oil pump Download PDFInfo
- Publication number
- CN1555114A CN1555114A CNA200310107784XA CN200310107784A CN1555114A CN 1555114 A CN1555114 A CN 1555114A CN A200310107784X A CNA200310107784X A CN A200310107784XA CN 200310107784 A CN200310107784 A CN 200310107784A CN 1555114 A CN1555114 A CN 1555114A
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- China
- Prior art keywords
- cable
- swing pipe
- holds
- bearing tube
- holding
- 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.)
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Abstract
This invention discloses a cable protection device of a underground oil- well pump including a cable, a bearing tube, a pressure storage device and a pressure device, among which, the bearing tube is formed by connecting several connection tubes with the top fixed at the outside of the well and the bottom extending to the bottom of the well, the top of cable penetrates the cavity of bearing tube and the bottom goes out from the bottom of bearing tube, top of bearing tube is connected with the inner cavity of pressure storage device connected with pressure device. Crude oil can't enter into the inner cavity of bearing tube by this invented device and can't harm the cable in it, so it's not necessary to process the cable with special anticorrosion to save cost.
Description
Technical field: the present invention relates to be used in the oil field protective device to the cable of down-hole oil-immersed pump transmission of electric energy.
Background technology: electric oil submerged screw pump is as a kind of new oil production equipment, characteristics such as have that discharge capacity is big, lift is high (can reach 2500m), the underground work life-span is long, surface technology is simple, convenient management and economic effect are obvious have obtained increasing application in recent years in the oil field.But in use have such problem, the cost of the cable of transmission electric energy is higher.Because crude oil is very serious to the insulating barrier corrosion on common cable surface, therefore be used in the cable on the oil-immersed pump, its insulating barrier must pass through special processing, because the length of the cable of necessary special processing is longer, all about last km, so the capital quantity that expends is bigger.
Summary of the invention: be used for the higher defective of etch-proof cost in order to overcome existing electric submersible pump cable, a kind of cable protecting device is provided, the protection cable is not corroded, thereby reduces the cost of cable.The present invention realizes by following proposal: a kind of cable protecting device of downhole pump; it comprises cable 1; it also comprises holds swing pipe 2, storage pressure device 3 and device for exerting 4; holding swing pipe 2 is to be linked to each other by some joints adapter 2-1 to form; the upper end of holding swing pipe 2 is fixed on outer wellhead; the lower end of holding swing pipe 2 extends bottom; the upper end of cable 1 penetrates in the tube chamber that holds swing pipe 2 upper ends; the lower end of cable 1 passes the lower end of holding swing pipe 2; hold the upper end of swing pipe 2 and the intracavity inter-connection of storage pressure device 3, storage pressure device 3 is connected with device for exerting 4.Device of the present invention is given by device for exerting 4 and storage pressure device 3 in use and is added hydraulic pressure or air pressure in the tube chamber that holds swing pipe 2; crude oil can not be entered in the inner chamber that holds swing pipe 2; can not cause corrosion harmfulness to the cable that holds in the swing pipe; therefore the cable that holds in the swing pipe is done special anti-corrosion treatment with regard to unnecessary; thereby saved the cost of cable greatly; utilize the swing pipe that holds of suspention oil-immersed pump to protect cable; do not increase extra spending, the aqueous medium and the air dielectric cost that are used to offset former oil pressure are very cheap.That the present invention has is reasonable in design, small investment and be suitable for the advantage of promotion and implementation.
Description of drawings: Fig. 1 is a structural representation of the present invention, and Fig. 2 is the enlarged diagram at I place among Fig. 1.
Embodiment one: specify present embodiment below in conjunction with Fig. 1.It is by cable 1, hold swing pipe 2, storage pressure device 3 and device for exerting 4 are formed, holding swing pipe 2 is to be linked to each other by some joints adapter 2-1 to form, the upper end of holding swing pipe 2 is fixed on outer wellhead, the lower end of holding swing pipe 2 extends bottom and connects oil-immersed pump 5, in order to oil-immersed pump 5 is fixed in the oil well, the upper end of cable 1 penetrates in the tube chamber that holds swing pipe 2 upper ends, the lower end of cable 1 passes the lower end of holding swing pipe 2, and be connected on the terminals of oil-immersed pump motor 6 in shaft bottom, hold the upper end of swing pipe 2 and the intracavity inter-connection of storage pressure device 3, storage pressure device 3 is connected with device for exerting 4.The upper end of cable 2 is connected on the electric supply installation 7, holds swing pipe 2 and is located in the oil pipe 8, and oil pipe 8 is used for crude oil is given rise to well head.Storage pressure device 3 is selected the air accumulator or the water storing tank of sealing for use, and device for exerting 4 is selected water pump or air pump for use.Open water pump or air pump to adding pressure in the storage pressure device 3, stop water pump or air pump then, valve-off 9, the storage pressure device can make the pressure that hold in the swing pipe 2 keep a period of time.If the oil-immersed pump motor is provided with electronic components such as position transducer, its holding wire also is connected to aboveground by holding swing pipe 2.
Embodiment two: specify present embodiment below in conjunction with Fig. 1.The difference of present embodiment and execution mode one is, it also comprises sealing device 10, and sealing device 10 is arranged on and holds the position that cable 1 penetrates and passes on swing pipe 2 outer round surface.So be provided with, can pass the position seals that penetrates to cable 1 and live, help holding not outwards pressure release in the swing pipe 2.
Embodiment three: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and execution mode two is, sealing device 10 is made up of short tube 10-1, ring flange 10-2, baffle plate 10-3 and airtight and watertight padding 10-4, short tube 10-1 is welded as a whole perpendicular to the outer surface that holds swing pipe 2 and with it, the outer face of short tube 10-1 is welded with ring flange 10-2, baffle plate 10-3 is connected with ring flange 10-2 by bolt, be provided with airtight and watertight padding 10-4 between ring flange 10-2 and the baffle plate 10-3, cable 1 passes airtight and watertight padding 10-4.Seal up holding swing pipe 2 by airtight and watertight padding 10-4.
Claims (4)
1; a kind of cable protecting device of downhole pump; it comprises cable (1); it is characterized in that it also comprises holds swing pipe (2); storage pressure device (3) and device for exerting (4); holding swing pipe (2) is to be linked to each other by some joints adapters (2-1) to form; the upper end of holding swing pipe (2) is fixed on outer wellhead; the lower end of holding swing pipe (2) extends bottom; the upper end of cable (1) penetrates in the tube chamber that holds swing pipe (2) upper end; the lower end of cable (1) passes the lower end of holding swing pipe (2); hold the upper end of swing pipe (2) and the intracavity inter-connection of storage pressure device (3), storage pressure device (3) is connected with device for exerting (4).
2, the cable protecting device of downhole pump according to claim 1 is characterized in that storing up air accumulator or the water storing tank that pressure device (3) is selected sealing for use, and device for exerting (4) is selected water pump or air pump for use.
3, the cable protecting device of downhole pump according to claim 1 is characterized in that it also comprises sealing device (10), and sealing device (10) is arranged on and holds the position that cable (1) penetrates and passes on swing pipe (2) outer round surface.
4; the cable protecting device of downhole pump according to claim 3; it is characterized in that sealing device (10) is by short tube (10-1); ring flange (10-2); baffle plate (10-3) and airtight and watertight padding (10-4) are formed; short tube (10-1) is welded as a whole perpendicular to the outer surface that holds swing pipe (2) and with it; the outer face of short tube (10-1) is welded with ring flange (10-2); baffle plate (10-3) is connected with ring flange (10-2) by bolt; be provided with airtight and watertight padding (10-4) between ring flange (10-2) and the baffle plate (10-3), cable (1) passes airtight and watertight padding (10-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310107784XA CN1555114A (en) | 2003-12-26 | 2003-12-26 | Cable protector for under well oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310107784XA CN1555114A (en) | 2003-12-26 | 2003-12-26 | Cable protector for under well oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1555114A true CN1555114A (en) | 2004-12-15 |
Family
ID=34334478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200310107784XA Pending CN1555114A (en) | 2003-12-26 | 2003-12-26 | Cable protector for under well oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1555114A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452593C (en) * | 2007-02-27 | 2009-01-14 | 张碧越 | Ventilating temperature-reducing type urban distribution network underground conduit channel |
| CN102562042A (en) * | 2012-01-19 | 2012-07-11 | 盘锦鑫辉石油科技有限公司 | Signal transmission method for downhole measurement and control system |
| CN106451266A (en) * | 2016-10-18 | 2017-02-22 | 国网山东省电力公司商河县供电公司 | Cable protection device, and implementation tool and use method of protection device |
-
2003
- 2003-12-26 CN CNA200310107784XA patent/CN1555114A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452593C (en) * | 2007-02-27 | 2009-01-14 | 张碧越 | Ventilating temperature-reducing type urban distribution network underground conduit channel |
| CN102562042A (en) * | 2012-01-19 | 2012-07-11 | 盘锦鑫辉石油科技有限公司 | Signal transmission method for downhole measurement and control system |
| CN106451266A (en) * | 2016-10-18 | 2017-02-22 | 国网山东省电力公司商河县供电公司 | Cable protection device, and implementation tool and use method of protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |