CN201269188Y - Novel sand prevention rod type oil pump - Google Patents
Novel sand prevention rod type oil pump Download PDFInfo
- Publication number
- CN201269188Y CN201269188Y CNU2008201488099U CN200820148809U CN201269188Y CN 201269188 Y CN201269188 Y CN 201269188Y CN U2008201488099 U CNU2008201488099 U CN U2008201488099U CN 200820148809 U CN200820148809 U CN 200820148809U CN 201269188 Y CN201269188 Y CN 201269188Y
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- release valve
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Abstract
The utility model discloses a novel sand-prevention rod type defueling pump which comprises a pump barrel, a lengthened barrel of the pump barrel, a plunger, an upper oil outlet valve cover and a lower oil outlet valve cover; wherein, the pump barrel is internally provided with the plunger and connected with the lengthened barrel of the pump barrel by screws, the pump barrel and the upper oil outlet valve cover are connected by a centralizing joint, an inner ring at the lower end of the lengthened barrel of the pump barrel is fixedly connected with the lower oil outlet valve cover, the inner ring at the upper end of the lower oil outlet valve cover is connected with a connecting pipe by screws, the connecting pipe is connected with the plunger by a double-male joint, the upper oil outlet valve cover is internally provided with an upper valve ball, the lower oil outlet valve cover is internally provided with a lower valve ball, the lower end of the lower oil outlet valve cover is connected with a central pipe by screws, and the excircle of the central pipe is provided with an anchoring device, the exterior of which is connected with a locating device in a sheathing way. The defueling pump has the advantages of simple installation, good sand-prevention effect, good anchoring property, high oil pumping efficiency, strong safety and convenient examination and repair.
Description
Technical field
The utility model relates to a kind of well recovery special device, is specifically related to a kind of new type of sand prevention rod-type pumping unit.
Background technique
At present, what mainly use at the higher oil well of sand content is long-plunger tubular type sand-proof oil-well pump, and this kind pump does not have the draining passage, and when well workover, the crude oil on the pump in the oil pipe can be ejected on the ground, can cause the well site to pollute; Oil pipe all must be tripped out when tripping out tubing pump, workload is very big.And common rod-type pumping unit grappling mainly is the friction by elasticity slips or Sealing, and these two kinds of uncertain meetings of power cause grappling to lose efficacy, and influence pumping efficiency, and do not have the sand control function.
The model utility content
The utility model provides a kind of new type of sand prevention rod-type pumping unit in order to solve deficiency of the prior art.
For solving the problems of the technologies described above, new type of sand prevention rod-type pumping unit of the present utility model, comprise pump barrel, pump barrel lengthening tube, plunger, last oil-release valve cover and following oil-release valve cover, be provided with plunger in the pump barrel, pump barrel and pump barrel lengthening tube are spirally connected, be connected by setting upright joint between pump barrel and the last oil-release valve cover, pump barrel lengthening tube lower end inner ring is fixedlyed connected with following oil-release valve cover, the following oil-release valve cover upper end inner ring connecting tube that is spirally connected, connecting tube is connected by a pair of tool joint pin with plunger, be provided with upper valve ball in the last oil-release valve cover, be provided with lower valve ball in the following oil-release valve cover, the described down oil-release valve cover lower end center tube that is spirally connected, the center tube cylindrical is provided with anchoring device, and the anchoring device outer cover is connected to positioning device.
Described anchoring device comprises packing element and the guide sleeve that is set on the center tube, guide sleeve below center tube on be fixedly connected with lock-on connection, be arranged with the lock pawl on the lock-on connection cylindrical.
Described positioning device comprises the interior pipe of guide sub, outer tube, bridge-type joint outer tube and the bridge-type joint of tubular, guide sub outer ring and outer tube upper end inner ring are spirally connected, outer tube lower end inner ring and bridge-type joint outer tube upper end are spirally connected, pipe is fixedly connected in the bridge-type joint outer tube in the bridge-type joint, bridge-type joint outer tube lower end snail is connected to lower contact, and the bridge-type joint outer tube between outer tube and the lower contact is arranged with screen casing outward.
On the following oil-release valve cover above the lower valve ball, be provided with the pin of blocking.
Described center tube is fixedlyed connected by the grappling shear pin with lock-on connection.
Described pump barrel lengthening tube lower end inner ring is fixedlyed connected by regulating shear pin with following oil-release valve cover.
The described packing element that is set on the center tube is provided with three, is provided with spacer ring between the adjacent packing element.
Be provided with safety ring in the described pump barrel lengthening tube, pump barrel lengthening tube is fixedlyed connected by safe shear pin with safety ring.
Adopt said structure, in the working procedure, the pump barrel motion, plunger is motionless, and the upper valve ball in the last oil-release valve cover will stop that the sand in the oil pipe sinks to pump barrel, plays the sand control function; Utilize the bridge-type joint that pipe forms in bridge-type joint outer tube and the bridge-type joint, oil inlet passage and sand setting passage are separated; Adopt the compression packing element to seal good sealing effect; Utilize the close-fitting structure of pipe in lock pawl and the bridge-type joint, the anchorage force of the grappling shear pin control pump housing; The pin of blocking can carry out spacing to lower valve ball, and it is long-pending to have increased overflow section like this, has reduced oil flow resistance; The utlity model has install simple, sand controlling result is good, the grappling performance is good, pumping efficiency is high, high safety, overhauls advantage easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of positioning device;
Fig. 3 is that A-A of Fig. 2 is to sectional view.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, new type of sand prevention rod-type pumping unit of the present utility model comprises pump barrel 4, pump barrel lengthening tube 8, plunger 5, goes up oil-release valve cover 1 and following oil-release valve cover 11.Be provided with plunger 5 in the pump barrel 4, pump barrel 4 is spirally connected with pump barrel lengthening tube 8, interconnect by setting upright joint 3 between pump barrel 4 and the last oil-release valve cover 1, pump barrel 4 and last oil-release valve cover 1 respectively with set upright joint 3 and be spirally connected, pump barrel lengthening tube 8 lower end inner rings are fixedlyed connected by regulating shear pin 10 with following oil-release valve cover 11, be provided with safety ring 30 in the pump barrel lengthening tube 8, pump barrel lengthening tube 8 is fixedlyed connected by safe shear pin 9 with safety ring 30.The following oil-release valve cover 11 upper end inner rings connecting tube 7 that is spirally connected, connecting tube 7 interconnects by a pair of tool joint pin 6 with plunger 5, connecting tube 7 and plunger 5 are spirally connected with two tool joint pins 6 respectively, be provided with upper valve ball 2 in the last oil-release valve cover 1, be provided with lower valve ball 13 in the following oil-release valve cover 11, the following oil-release valve cover 11 of lower valve ball 13 tops is provided with the pin 12 of blocking.The following oil-release valve cover 11 lower ends center tube 14 that is spirally connected, center tube 14 cylindricals are provided with anchoring device.The anchoring device outer cover is connected to positioning device.Anchoring device comprises packing element 15 and the guide sleeve 17 that is set on the center tube 14, packing element 15 is provided with three, be provided with spacer ring 16 between the adjacent packing element 15, guide sleeve 17 belows center tube 14 on be fixedly connected with lock-on connection 20 by grappling shear pin 19, be arranged with on lock-on connection 20 cylindricals lock pawl 18.Positioning device comprises the interior pipe 23 of guide sub 21, outer tube 22, bridge-type joint outer tube 24 and the bridge 0 formula joint of tubular, guide sub 21 outer rings and outer tube 22 upper end inner rings are spirally connected, outer tube 22 lower end inner rings and bridge-type joint outer tube 24 upper ends are spirally connected, pipe 23 is fixedly connected in the bridge-type joint outer tube 24 in the bridge-type joint, bridge-type joint outer tube 24 lower end snails are connected to lower contact 26, the bridge-type joint outer tube 24 outer screen casings 25 that are arranged with between outer tube 22 and the lower contact 26.Pipe 23 sides are porose 40 in the bridge-type joint, and hole 40 communicates with central bore 41, is milled into the plane on pipe 23 peripheries in the bridge-type joint, forms two circular arc passages 42 with bridge-type joint outer tube 22, manages 23 in the bridge-type joint and is welded in the bridge-type joint outer tube 24.
During installation, positioning device is with oil pipe G.I.H designed depth, last oil-release valve cover 1 links to each other with sucker rod and is lowered in the oil pipe endoporus, so in the course of the work, pump barrel 4 motions, plunger 5 is motionless, lock pawl 18 enters and manages in the bridge-type joint in 23 by guide sub 21, in the pipe 23 step surface and buttress thread is arranged in the bridge-type joint, step surface cooperates in pipe 23 in guide sleeve 17 and the bridge-type joint, under the compression of rod weight to packing element 15, packing element 15 radially enlarges, with the endoporus sealing of pipe 23 in the bridge-type joint, lock pawl 18 simultaneously and cooperate self-locking can carry out grappling with the buttress thread of the interior pipe 23 of bridge-type joint, the upper end conical surface of while lock-on connection 20 will be locked pawl 18 and compress; The size of anchorage force is by the shearing force control of grappling shear pin 19, the shearing force of grappling shear pin 19 can accurately be controlled, and anchorage force just can accurately be controlled like this, when tripping out pump, upper lifting force is during greater than the shearing force of grappling shear pin 19, and grappling shear pin 19 is just cut off can trip out oil well pump.
Normal oil pumping when sucker rod is up, will be regulated shear pin 10 and cut off, and regulate over-stroke.Fluid enters central bore 41 through screen casing 25 pipe 23 sidewise holes 40 in the bridge-type joint, through center tube 14 endoporus, by oil-release valve cover 11, connecting tube 7, plunger 5 enter pump chamber down, when sucker rod is descending, lower valve ball 13 is closed, upper valve ball 1 is opened fluid and is entered in the oil pipe from pump chamber, sand grains in the oil pipe sinks and sinks by the annular space of pump barrel 4 with oil pipe, sinks to tail pipe through bridge-type joint circular arc passage 42.Carry sucker rod on when playing pump grappling shear pin 19 is cut off, trip out oil well pump, will lock pawl 18 and fall into tail pipe with lock-on connection 20.
Claims (8)
1, the new type of sand prevention rod-type pumping unit, comprise pump barrel, pump barrel lengthening tube, plunger, last oil-release valve cover and following oil-release valve cover, be provided with plunger in the pump barrel, pump barrel and pump barrel lengthening tube are spirally connected, be connected by setting upright joint between pump barrel and the last oil-release valve cover, pump barrel lengthening tube lower end inner ring is fixedlyed connected with following oil-release valve cover, the following oil-release valve cover upper end inner ring connecting tube that is spirally connected, connecting tube is connected by a pair of tool joint pin with plunger, be provided with upper valve ball in the last oil-release valve cover, be provided with lower valve ball in the following oil-release valve cover, it is characterized in that: the described down oil-release valve cover lower end center tube that is spirally connected, the center tube cylindrical is provided with anchoring device, and the anchoring device outer cover is connected to positioning device.
2, new type of sand prevention rod-type pumping unit according to claim 1, it is characterized in that: described anchoring device comprises packing element and the guide sleeve that is set on the center tube, guide sleeve below center tube on be fixedly connected with lock-on connection, be arranged with the lock pawl on the lock-on connection cylindrical.
3, new type of sand prevention rod-type pumping unit according to claim 1 and 2, it is characterized in that: described positioning device comprises the interior pipe of guide sub, outer tube, bridge-type joint outer tube and the bridge-type joint of tubular, guide sub outer ring and outer tube upper end inner ring are spirally connected, outer tube lower end inner ring and bridge-type joint outer tube upper end are spirally connected, pipe is fixedly connected in the bridge-type joint outer tube in the bridge-type joint, bridge-type joint outer tube lower end snail is connected to lower contact, and the bridge-type joint outer tube between outer tube and the lower contact is arranged with screen casing outward.
4, new type of sand prevention rod-type pumping unit according to claim 3 is characterized in that: be provided with the pin of blocking on the following oil-release valve cover above the lower valve ball.
5, new type of sand prevention rod-type pumping unit according to claim 4 is characterized in that: described center tube is fixedlyed connected by the grappling shear pin with lock-on connection.
6, new type of sand prevention rod-type pumping unit according to claim 5 is characterized in that: described pump barrel lengthening tube lower end inner ring is fixedlyed connected by regulating shear pin with following oil-release valve cover.
7, new type of sand prevention rod-type pumping unit according to claim 6 is characterized in that: the described packing element that is set on the center tube is provided with three, is provided with spacer ring between the adjacent packing element.
8, new type of sand prevention rod-type pumping unit according to claim 7 is characterized in that: be provided with safety ring in the described pump barrel lengthening tube, pump barrel lengthening tube is fixedlyed connected by safe shear pin with safety ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201488099U CN201269188Y (en) | 2008-08-28 | 2008-08-28 | Novel sand prevention rod type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201488099U CN201269188Y (en) | 2008-08-28 | 2008-08-28 | Novel sand prevention rod type oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269188Y true CN201269188Y (en) | 2009-07-08 |
Family
ID=40841786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201488099U Expired - Fee Related CN201269188Y (en) | 2008-08-28 | 2008-08-28 | Novel sand prevention rod type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269188Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287358A (en) * | 2011-08-30 | 2011-12-21 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN114687706A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Many rounds of sand washing flowing back integration tubular column |
-
2008
- 2008-08-28 CN CNU2008201488099U patent/CN201269188Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287358A (en) * | 2011-08-30 | 2011-12-21 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN102287358B (en) * | 2011-08-30 | 2014-03-12 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN114687706A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Many rounds of sand washing flowing back integration tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090708 Termination date: 20110828 |