CN2611587Y - Self-cleaning wellbore and proof device for submersible pump - Google Patents
Self-cleaning wellbore and proof device for submersible pump Download PDFInfo
- Publication number
- CN2611587Y CN2611587Y CN 02267919 CN02267919U CN2611587Y CN 2611587 Y CN2611587 Y CN 2611587Y CN 02267919 CN02267919 CN 02267919 CN 02267919 U CN02267919 U CN 02267919U CN 2611587 Y CN2611587 Y CN 2611587Y
- Authority
- CN
- China
- Prior art keywords
- sand
- tube
- shunting
- sand block
- outer working
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an electric submersible pump pitshaft sand-controlled device, which comprises pipe nipples and joints, wherein the bottom of the lifting pipe nipple is connected with the upper joint, and the bottom of the upper joint is connected with an outer mandrel. The external wall of the outer mandrel is provided with a cable through, and the cavity of the outer mandrel is installed with a branch-off sand-controlled barrel with the diversion head of a built-in pressure-adjustable one-way valve on top. A sand-controlled filtering layer is installed on the external wall of the central pipe of the branch-off sand-controlled barrel, and the outer mandrel and the branch-off sand-controlled barrel are both connected with the lower joint which is further connected with the lower pipe nipple. The utility model can effectively self-clean sand in the pinshaft, which thoroughly avoids the accidents that the electric pump can not be started and sand sticking caused by the pinshaft sand while the set stops run.
Description
Technical field the utility model relates to a kind of oil exploitation submersible electric pump pit shaft sand control device.
Background technology is present, and domestic and international existing submersible electric pump pit shaft sand control card instrument all adopts simple " sand-settling device " form of structure, and multistage sand-settling device string promptly is installed more than the completion tubular column ball-and-seat.Because its simple in structure and defective function singleness, still can not solve the sand control card problem of submersible electric pump very effectively.Chinese patent 92211775.6 relates to a kind of oil exploitation concentric screen sand control device, takes mainly that filling micro glass ball carries out sand control in the toroidal cavity between interior outer screen pipe; The continuous sand control device of 92224076.0 1 kinds of stainless steels of patent mainly adopts the stainless steel fibre filter cloth to be wrapped on the sieve muscle of screen casing and carries out sand control; 94,223,497 1 kinds of sand control devices of patent are taked to be equipped with the porous filter sand cover that the quartz sand sintering forms and are carried out sand control in the pipe of hole.The technical purpose of above-mentioned patent all is in order to stop that formation particle enters pit shaft, all do not relate to the self-cleaning content of the sand setting that enters the pit shaft sand that the electric pump that the pit shaft sand setting causes in the time of can not fundamentally solving because of unit outage can not be opened and the sand card.
The summary of the invention technical problem to be solved in the utility model is that the formation particle electric pump that the pit shaft sand setting causes when entering behind the pit shaft because of unit outage can not be opened and the sand card.The utility model is to realize like this, self-cleaning submersible electric pump pit shaft sand control device, it comprises lifting sub, top connection, lower contact, connects joint under the lifting sub, connects outer working tube under the top connection, on the outer working tube outer wall, be processed with cable and protect groove, outer working tube is a tubular structure, in outer working tube inner chamber central authorities shunting sand block tube is installed, and shunting sand block tube also claims interior seating nipple, be connected with flow guiding head in shunting sand block tube upper end, the one way valve of adjustable in pressure is installed in flow guiding head.Shunting sand block tube is made up of central tube and sand block filtering layer: be processed with vertical runner on central tube, its outer wall is equipped with the sand block filtering layer.The lower end of outer working tube, shunting sand block tube is connected in the lower contact together, and lower contact is connected in down on the pipe nipple.The utility model is to aim at land, extra large oil field sand well submersible electric pump (electric submersible centrifugal pump, oil-submersible electric screw pump) oil recovery unit pit shaft sand control card and the novel completion tubular string kit developed.Because the scientific and reasonable configuration that it takes adjustable in pressure one way valve and shunting sand block tube can guarantee that the stratum output liquid that will contain sand when the submersible electric pump operate as normal is lifted to ground; The more important thing is that it also can be deposited on the sand grains in the well liquid in the ring cavity of domestic and foreign work tube when unit outage, rely on the water conservancy diversion shunting to carry sand setting outside ground again when driving a well again, realized automatic sand removal, the electric pump that the pit shaft sand setting causes when having avoided unit outage can not be opened the generation with sand card accident.
Appended drawings 1 is a structural representation of the present utility model.Pipe nipple, 8-cable protect groove under 1-lifting sub among the figure, 2-top connection, 3-flow guiding head, 4-outer working tube, 5-shunting sand block tube, 6-lower contact, the 7-.
The specific embodiment is with reference to accompanying drawing 1, connect oil pipe on the lifting sub 1, under connect joint 2, top connection connects outer working tube 2 times, cable is installed on the outer wall of outer working tube 4 protects groove 8, in outer working tube inner chamber central authorities shunting sand block tube 5 is installed, in shunting sand block tube upper end flow guiding head 3 is installed, the adjustable in pressure one way valve is installed in flow guiding head 3, outside the central tube of shunting sand block tube, the sand block filtering layer is installed, outer working tube and shunting sand block tube are fixed in the lower contact 6 together like this, and lower contact 6 is connected in down on the pipe nipple 7, and following pipe nipple 7 is connected on the ball-and-seat on the Electric Submersible Pump Unit.When in outer working tube, forming sand setting because of unit outage, again start shooting under the fluid effect of submersible electric pump lifting, because the drag effect of adjustable in pressure one way valve setting pressure, make the segment fluid flow in the shunting sand block tube pass shunting sand block tube and filtering layer enters outer working tube along the vertical runner in the sand block tube, thereby the sand setting in the outer working tube is slowly taken out of, realized the automatic removing of pit shaft sand setting fully.
Claims (3)
1. self-cleaning submersible electric pump pit shaft sand control device, comprise lifting sub, top connection, lower contact, following pipe nipple, outer working tube, shunting sand block tube, flow guiding head, cable protects groove, it is characterized in that the lifting sub bottom connects top connection with screw thread, the top connection bottom links with screw thread and outer working tube, on the outer working tube outer wall, be processed with cable and protect groove, in outer working tube inner chamber central authorities shunting sand block tube is installed, be connected with flow guiding head in shunting sand block tube upper end, the lower end of outer working tube and shunting sand block tube all is connected in the lower contact with screw thread, and the lower contact lower end is connected in down on the pipe nipple with screw thread.
2. self-cleaning submersible electric pump pit shaft sand control device according to claim 1 is characterized in that being equipped with in the flow guiding head adjustable in pressure one way valve.
3. self-cleaning submersible electric pump pit shaft sand control device according to claim 1 is characterized in that shunting the sand block tube and is made up of central tube and sand block filtering layer, is processed with vertical runner on central tube, at the central tube outer wall sand block filtering layer is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267919 CN2611587Y (en) | 2002-06-27 | 2002-06-27 | Self-cleaning wellbore and proof device for submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267919 CN2611587Y (en) | 2002-06-27 | 2002-06-27 | Self-cleaning wellbore and proof device for submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2611587Y true CN2611587Y (en) | 2004-04-14 |
Family
ID=34150276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267919 Expired - Fee Related CN2611587Y (en) | 2002-06-27 | 2002-06-27 | Self-cleaning wellbore and proof device for submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2611587Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798563A (en) * | 2018-05-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | Fluid-power motor and its anti-block apparatus |
-
2002
- 2002-06-27 CN CN 02267919 patent/CN2611587Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798563A (en) * | 2018-05-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | Fluid-power motor and its anti-block apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203201503U (en) | Drilling fluid filter | |
| CN2611587Y (en) | Self-cleaning wellbore and proof device for submersible pump | |
| CN2479202Y (en) | Super-long stroke downhole bailer | |
| CN208294499U (en) | A kind of normal pressure shale gas water drainage gas production device | |
| CN208950557U (en) | A kind of oil well reverse-filling tubing string | |
| CN211715114U (en) | Underground sand prevention type liquid-gas separator | |
| CN114607289A (en) | Electric pump and jet pump combined lifting process pipe column suitable for high sand content and using method thereof | |
| CN211598616U (en) | Sand-discharging and liquid-discharging device of jet pump matched with hollow rod | |
| CN211144465U (en) | Underground oil-water separator | |
| CN209873835U (en) | Novel recharge well structure | |
| CN2758474Y (en) | Under well gas liquid separating and back filling sand proof gas recovering device | |
| CN206799213U (en) | The efficient oil separation equipment of bicavate | |
| CN2381781Y (en) | Pipe column for regulating separated layer water injection | |
| CN217813410U (en) | Coal bed gas drainage, production and well washing integrated process pipe column | |
| CN2390025Y (en) | Two-channel countercirculation sand-carrying oil-well pump | |
| CN111997878B (en) | Sand-discharging oil-well pump | |
| CN109339723A (en) | Protection oil reservoir formula continuous sand flushing takes sand device | |
| CN2419370Y (en) | Multifunctional underground sand filter | |
| CN219452063U (en) | Underground mechanical oil extraction device for oil field | |
| CN217380512U (en) | Two oil reservoir separate-layer mining or commingled mining device of oil well | |
| CN219158933U (en) | Circulation sand washing instrument of change flow way | |
| CN212837717U (en) | Coal bed gas well production string | |
| CN2321938Y (en) | Continue sand-flushing device | |
| CN220214255U (en) | Multistage drainage mechanism of geothermal well water production pipe | |
| CN216197945U (en) | Matched artificial water re-injection facility for deep coal bed gas drainage and production |
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 |