CN2352734Y - Parallel rubber sack protector for oil submerged electric motor - Google Patents
Parallel rubber sack protector for oil submerged electric motor Download PDFInfo
- Publication number
- CN2352734Y CN2352734Y CN 98222140 CN98222140U CN2352734Y CN 2352734 Y CN2352734 Y CN 2352734Y CN 98222140 CN98222140 CN 98222140 CN 98222140 U CN98222140 U CN 98222140U CN 2352734 Y CN2352734 Y CN 2352734Y
- Authority
- CN
- China
- Prior art keywords
- oil
- protector
- rubber sack
- parallel
- capsule
- 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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- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a parallel rubber sack protector for an oil submerged motor used for an oil industry. The parallel rubber sack protector for an oil submerged motor used for an oil industry is composed of a rubber sack assembly, a guide body assembly, etc. A communicating flow channel is arranged on the lower part of the guide body assembly. The utility model has reasonable design, reliable seal, and long working life. When an upper rubber sack fails, a lower rubber sack continuously plays a protective function to the oil submerged motor. Rubber sack which are connected in parallel are more, and the working life of the parallel rubber sack protector for an oil submerged motor used for an oil industry is longer. The parallel rubber sack protector for an oil submerged motor used for an oil industry effectively protect the oil submerged motor, thereby, a pump inspection period is extended, the work times of an oil extraction well of an electric submersible pump are reduced, and the production cost of the parallel rubber sack protector for an oil submerged motor used for an oil industry is lowered.
Description
The utility model relates to the oil production equipment of petroleum industry, and particularly a kind of capsule oil-submersible motor protector in parallel is applicable to various submersible electric pump oil recovery wells.
At present, at the oil recovery scene of petroleum industry, submersible electric pump be take out deeply the oil field development intermediary and later stages, the important oil production equipment of extract, and Electric Submersible Pump Unit costs an arm and a leg.If break down, unit rountrip expense height, not only influence is produced also increases cost of production.According to statistics, about 40% for oil-submersible motor lost efficacy in submersible electric pump fault well, and because the protector inefficacy causes accounting for about 50% of oil-submersible motor inefficacy.Oil-submersible motor protector at present commonly used has two kinds of precipitating type and capsule-types.Insulating oil in the precipitating type protector directly contacts with well liquid.Owing to the startup of oil-submersible motor, stop, insulating oil and well liquid are constantly breathed, are exchanged, and well liquid constantly enters, and protector is also along with inefficacy.This class protector operating life is shorter.The capsule-type protector utilizes capsule to come barrier wells liquid.Capsule-type protector commonly used is the series connection capsule-type.Because its capsule (no matter what) all contact with well liquid, Environmental Conditions is poor.As long as wherein a capsule damages, protector is just ineffective.This class protector operating life is shorter relatively.The feasibility that improves protector is to prolong the oil-submersible motor key in working life.
The purpose of this utility model provides a kind of capsule connection oil-submersible motor protector of protective function layer by layer that has; the performance of protector is significantly improved, prolong the working life of oil-submersible motor, play the purpose of effective protection oil-submersible motor; thereby reduce the underground work number of times, reduce cost for oil production.
Above-mentioned purpose can reach with the present technique solution: it is parallel changing former tandem capsule protector, is made up of capsule assembly and guide way assembly, is communicated with runner in the bottom of guide way assembly design one, and the capsule outside is contacted with well liquid, and inside is dynamo oil; The inside and outside dynamo oil that is of following capsule.
After using the utility model, the working environment of following capsule is better than last capsule, loses efficacy if go up capsule, and following capsule will remain valid, and play a protective role, and improve the reliability of protector, prolong pump detection period.Capsule in parallel is many more, and the operating life of protector is long more, and service behaviour is reliable more, and pump detection period is long more.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with embodiment the utility model is done further detailed description, referring to accompanying drawing, the utility model is by capsule assembly and guide way assembly 5 and one-way valve 1, last capsule 2, housing 3, axle 4, mechanical seal 6 and following capsule 7 compositions such as grade.Have one to be communicated with runner 8 in the bottom of guide way assembly 5.The quantity that is communicated with runner 8 is more than 1 or 1, increases as required or reduces.Capsule and guide way assembly 5 in parallel are more than 1 or 1.The supporting use of the utility model and oil-submersible motor with all venting plugs of opening protector after oil-submersible motor is connected, blocks after every venting plug is seen oil in the oiling process.Capsule promptly played the protective action of bilayer or multilayer after protector and oil-submersible motor were gone into the well to oil-submersible motor.The outside of last capsule 2 is a well liquid, and inner chamber is a dynamo oil; The dynamo oil of last capsule 2 inner chambers by the gap between axle 4 and the guide way assembly 5 be communicated with runner 8 and be communicated with following capsule 7 exocoels; Following capsule 7 is communicated with next capsule exocoel by the runner that is communicated with of the gap between axle 4 and the guide way assembly 5 with next guide way assembly.Last capsule 2 outsides contact with well liquid, and inside is dynamo oil; The following capsule 7 inside and outside dynamo oils that are; Because the working environment of following capsule 7 is better than last capsule 2; be equivalent to capsule 2 and protected time capsule 7; if last capsule 2 lost efficacy; following capsule 7 shields continuing; have only all capsules all to damage; water just can enter oil-submersible motor inside, thereby has improved the reliability of protector, has prolonged operating life.The number of capsule in parallel is many more, and reliability is good more, and operating life is long more.
Claims (3)
1, a kind of capsule oil-submersible motor protector in parallel that is used for petroleum industry comprises capsule assembly and guide way assembly (5), it is characterized in that being provided with in the bottom of guide way assembly (5) being communicated with runner (8).
2, oil-submersible motor protector according to claim 1, it is characterized in that being communicated with runner (8) quantity is more than 1 or 1.
3, oil-submersible motor protector according to claim 1 is characterized in that capsule and guide way assembly (5) quantity in parallel are more than 1 or 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222140 CN2352734Y (en) | 1998-08-14 | 1998-08-14 | Parallel rubber sack protector for oil submerged electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222140 CN2352734Y (en) | 1998-08-14 | 1998-08-14 | Parallel rubber sack protector for oil submerged electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2352734Y true CN2352734Y (en) | 1999-12-08 |
Family
ID=33973545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98222140 Expired - Fee Related CN2352734Y (en) | 1998-08-14 | 1998-08-14 | Parallel rubber sack protector for oil submerged electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2352734Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437758A (en) * | 2013-08-14 | 2013-12-11 | 宁波新中方测控***有限公司 | Downhole temperature and pressure measurement system |
| CN105201799A (en) * | 2014-09-09 | 2015-12-30 | 赵锡寰 | Submerged oil pump unit provided with downhole drive conversion device |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| CN103437758B (en) * | 2013-08-14 | 2016-11-30 | 宁波新中方测控***有限公司 | A kind of down-hole thermometric pressure measuring system |
-
1998
- 1998-08-14 CN CN 98222140 patent/CN2352734Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437758A (en) * | 2013-08-14 | 2013-12-11 | 宁波新中方测控***有限公司 | Downhole temperature and pressure measurement system |
| CN103437758B (en) * | 2013-08-14 | 2016-11-30 | 宁波新中方测控***有限公司 | A kind of down-hole thermometric pressure measuring system |
| CN105201799A (en) * | 2014-09-09 | 2015-12-30 | 赵锡寰 | Submerged oil pump unit provided with downhole drive conversion device |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| RU2669019C1 (en) * | 2014-09-09 | 2018-10-05 | Ксихуань ЖАО | Stage of submersible screw oil well pump with submersible drive |
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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 |