CN204572451U - A kind of screw pump sand control device - Google Patents
A kind of screw pump sand control device Download PDFInfo
- Publication number
- CN204572451U CN204572451U CN201520023611.8U CN201520023611U CN204572451U CN 204572451 U CN204572451 U CN 204572451U CN 201520023611 U CN201520023611 U CN 201520023611U CN 204572451 U CN204572451 U CN 204572451U
- Authority
- CN
- China
- Prior art keywords
- sand control
- screw pump
- core pipe
- baffle ring
- control device
- 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
Abstract
The utility model relates to the sand control installation used in oil extraction in oil field work, and relating to especially is a kind of screw pump sand control device; A kind of screw pump sand control device, comprises upper connection, overcoat, sand control baffle ring, core pipe and lower contact, it is characterized in that being followed successively by upper connection, core pipe, lower contact in described overcoat, wherein, establish righting block between core pipe and overcoat; The cavity formed by righting block between described core pipe and overcoat is sand setting chamber; Described sand control baffle ring is fixedly connected on the sucker rod body of rod of core pipe upper end, and sand control baffle ring freely can slide up and down described core pipe upper lateral part and be provided with liquid outlet channel on sucker rod; Because the sand setting in oil pipe cannot sink among screw pump stator and rotor, effectively prevent the sand card of screw pump; Sand control baffle ring is easy for installation, can be installed on the oil pumping body of rod top of same model easily, and in oil pumping coherent operation process, sand control baffle ring can not drop; Substantially prolongs the working life of screw pump.
Description
Technical field
The utility model relates to the sand control installation used in oil extraction in oil field work, and relating to especially is a kind of screw pump sand control device.
Background technique
Rod-type screw pump is had to have good adaptability for height containing sand drain, because viscosity of crude is higher, can along with the carrying out produced containing the sand in sand drain liquid, sand discharges well head with producing well liquid; Once power failure or the maintenance of ground screw pump driver; sand in the well liquid of sucker rod external oil pipe inside will slowly sink; if the screw pump stopping time is longer; these sands will deposit to screw pump stator and rotor top; when deposition is excessive; screw pump again starts and will run into jam, will stuck sucker rod and rotor time serious, causes well workover accident.
Summary of the invention
In order to the utility model that solves the problem provides a kind of screw pump sand control device, this screw pump sand control installation is provided with sand setting chamber, when screw bolt well has a power failure or ground screw pump driver overhauls, sand in the well liquid of sucker rod external oil pipe inside will slowly time, will all deposit in the sand setting chamber in bar pump sand control installation.And in normal productive process, the well liquid up from core pipe is up from the sidewall of core pipe, walk around sand control baffle ring, sand control baffle ring does not affect the normal lifting of screw bolt well liquid.
To achieve these goals, the utility model is achieved in that a kind of screw pump sand control device, comprises upper connection, overcoat, sand control baffle ring, core pipe and lower contact, it is characterized in that being followed successively by upper connection, core pipe, lower contact in described overcoat, wherein, righting block is established between core pipe and overcoat; The cavity formed by righting block between described core pipe and overcoat is sand setting chamber; Described sand control baffle ring is fixedly connected on the sucker rod body of rod of core pipe upper end, and sand control baffle ring freely can slide up and down described core pipe upper lateral part and be provided with liquid outlet channel on sucker rod.
Described sand control baffle ring is made up of two semi-rings, and described two semi-rings are fixed together by anti-back pinning.
Described two hemizonid outsides, are also designed with circular groove, establish retaining ring in circular groove; Two hemizonids are fixed by retaining ring.
Described retaining ring is opening resilient metal member.
Described retaining ring is sealing closed-loop type elastic rubber.
Described anti-back pinning one end is screw thread, and one end is anti-back tooth.
This uses novel working principle:
Main body installs screw rod pump barrel top, and sand control baffle ring is installed on the sucker rod on screw pump rotor top, and after putting in place under screw pump fuse, sand control baffle ring will block core pipe upper channel, prevents sand setting from dropping in core pipe; And in normal productive process, the well liquid up from core pipe is up from the sidewall of core pipe, walk around sand control baffle ring, sand control baffle ring does not affect the normal lifting of screw bolt well liquid.Because the sand setting in oil pipe cannot sink among screw pump stator and rotor, effectively prevent the sand card of screw pump.Sand control baffle ring is easy for installation, can be installed on the oil pumping body of rod top of same model easily, and in oil pumping coherent operation process, sand control baffle ring can not drop.Substantially prolongs the working life of screw pump.
Accompanying drawing explanation
Fig. 1 is that screw pump sand control installation structure shows sectional drawing.
Fig. 2 is the perspective view marking 4 parts in Fig. 1.
Fig. 3 is the schematic cross-section of Fig. 2.
Sucker rod 1, upper connection 2, overcoat 3, sand control baffle ring 4, righting block 5, core pipe 6, lower contact 7, retaining ring 8, anti-back pinning 9, ring shaped slot 4-1, upper semi-body 4-2, lower semi-body 4-3, piston rod 3-1, liquid outlet channel 6-1, anti-back tooth 9-1.
Embodiment
Below in conjunction with accompanying drawing (Fig. 1, Fig. 2, shown in Fig. 3) be described further this use is novel: a kind of screw pump sand control device, comprise upper connection 2, overcoat 3, sand control baffle ring 4, core pipe 6 and lower contact 7, it is characterized in that, be followed successively by upper connection 2, core pipe 6 and lower contact 7 in described overcoat 3, wherein, between core pipe 6 and overcoat 3, establish righting block 5; The cavity formed by righting block 5 between described core pipe 6 and overcoat 3 is sand setting chamber; Described sand control baffle ring 4 is fixedly connected on the sucker rod body of rod of core pipe 6 upper end, and sand control baffle ring 4 freely can slide up and down on sucker rod (shown in Fig. 1).
Shown in Fig. 1, described core pipe 6 upper lateral part is provided with liquid outlet channel 6-1.
Shown in Fig. 2, Fig. 3, described sand control baffle ring 4 is made up of two semi-rings, and described two semi-rings are fixed together by anti-back pinning 9.
Shown in Fig. 2, described two hemizonid outsides, are also designed with circular groove 4-1, establish retaining ring 8 in circular groove 4-1; Two hemizonids are fixed by retaining ring 8.
Described retaining ring 8 is opening resilient metal member.
Described retaining ring 8 can also be designed to sealing closed-loop type elastic rubber.
Shown in Fig. 2, described anti-back pinning 9 one end is screw thread, and one end is anti-back tooth.
Claims (7)
1. a screw pump sand control device, comprises upper connection, overcoat, sand control baffle ring, core pipe and lower contact, it is characterized in that, is followed successively by upper connection, core pipe, lower contact in described overcoat, wherein, establishes righting block between core pipe and overcoat; The cavity formed by righting block between described core pipe and overcoat is sand setting chamber; Described sand control baffle ring is fixedly connected on the sucker rod body of rod of core pipe upper end, and sand control baffle ring freely can slide up and down on sucker rod.
2. screw pump sand control device according to claim 1, is characterized in that, described core pipe upper lateral part is provided with liquid outlet channel.
3. screw pump sand control device according to claim 1, is characterized in that, described sand control baffle ring is made up of two semi-rings, and described two semi-rings are fixed together by anti-back pinning.
4. screw pump sand control device according to claim 3, is characterized in that, described two hemizonid outsides are also designed with circular groove, establish retaining ring in circular groove; Two hemizonids are fixed by retaining ring.
5. screw pump sand control device according to claim 4, is characterized in that, described retaining ring is opening resilient metal member.
6. screw pump sand control device according to claim 4, is characterized in that, described retaining ring is sealing closed-loop type elastic rubber.
7. screw pump sand control device according to claim 3, is characterized in that, described anti-back pinning one end is screw thread, and one end is anti-back tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023611.8U CN204572451U (en) | 2015-01-01 | 2015-01-01 | A kind of screw pump sand control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023611.8U CN204572451U (en) | 2015-01-01 | 2015-01-01 | A kind of screw pump sand control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572451U true CN204572451U (en) | 2015-08-19 |
Family
ID=53865097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023611.8U Expired - Fee Related CN204572451U (en) | 2015-01-01 | 2015-01-01 | A kind of screw pump sand control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572451U (en) |
-
2015
- 2015-01-01 CN CN201520023611.8U patent/CN204572451U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203742480U (en) | Clamping-preventing casing guide device | |
| CN204060596U (en) | A kind of down-hole unfreezing hydraulic force increasing device | |
| CN104234654A (en) | Underground hydraulic jarring stuck releasing device | |
| CN206129183U (en) | Spin formula sucker rod centralizer structure | |
| CN202469088U (en) | Underground check valve for oil gas drilling | |
| CN204572451U (en) | A kind of screw pump sand control device | |
| CN104847265A (en) | Cylindroid telescopic reducing drilling tool | |
| CN201292939Y (en) | Oil pump for reducing sustained center load by pre-filled drive block | |
| CN205135563U (en) | Oil recovery is frizing device for well | |
| CN203584344U (en) | Sand prevention and well flushing valve for electric pumping wells | |
| CN102536145B (en) | Sand setting assembly for screw drilling tool | |
| CN204082061U (en) | Fracture used high-pressure sand-proof hydraulic anchor | |
| CN102913146A (en) | Sucker rod pumping improvement centralizer | |
| CN203584327U (en) | Drill bit stabilizer | |
| CN109386248B (en) | Hydraulic shock jam releasing tool | |
| CN203175843U (en) | Sliding sand preventing device of oil well pump | |
| CN204627410U (en) | A kind of Cylindroid telescopic reducing drilling tool | |
| CN204357411U (en) | Sliding sleeve of bushing cement paste spacer assembly | |
| CN205225157U (en) | Blowout preventer for long string | |
| CN205100936U (en) | One -way valve on wellhead of oil prodn. well | |
| CN203463121U (en) | Plug-in type conical surface rigidity seal hydraulic control one-way valve | |
| CN204692060U (en) | A kind of low-resistance sand-proof oil-well pump | |
| CN202500751U (en) | Tertiary oil recovery oil well pump | |
| CN202203103U (en) | Novel device for preventing pump from being blocked by grit | |
| CN202866668U (en) | Pumping unit polish rod reinforced anti-falling cap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20210101 |