CN203321769U - Continuous release downhole piston pump - Google Patents
Continuous release downhole piston pump Download PDFInfo
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- CN203321769U CN203321769U CN2013203198886U CN201320319888U CN203321769U CN 203321769 U CN203321769 U CN 203321769U CN 2013203198886 U CN2013203198886 U CN 2013203198886U CN 201320319888 U CN201320319888 U CN 201320319888U CN 203321769 U CN203321769 U CN 203321769U
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Abstract
The utility model discloses a continuous release downhole piston pump, which belongs to the technical field of oil-gas field development, wherein a filter group is embedded on the upper surface of a first upper joint through a thread, a first protective pipe is connected with the first upper joint through the thread, a piston sleeve is arranged in the first protective pipe, and the is connected on the lower surface of the first upper joint through the thread, a first piston rod is connected with a drive group through the thread, the drive group is fixed on the piston sleeve through a bearing, one end of the drive shaft is embedded in a first middle joint, the first protective pipe and the first middle joint are connected through the thread, a second protective pipe and the first middle joint are connected through the thread, a motor and a control circuit board are fixed on a first lower joint, the first lower joint and the second protective pipe are connected through the thread, and the first lower joint is connected with a battery group through the thread. A liquid storage pipe with medicament and a release pump are connected on the tail end of an oil well production string, and the continuous release downhole piston pump is convenient to construct and operate. The continuous release downhole piston pump is provided with a battery which is used as a power supply, and does not need extra power. The continuous release downhole piston pump achieves automatic, quantitative and continuous release of the medicament, thereby furthest playing performance of the medicament.
Description
Technical field
The utility model relates to a kind of continuous release down-hole reciprocating pump, belongs to the oil-gas field development technical field.
Background technique
In oilfield development process, usually need to add various chemical agents in oil well, safeguard the normal production of oil well.At present, the mode that the oil well dosing adopts mainly contains liquid well head infusion and two kinds of methods of solid down-hole slowly-releasing dosing.The liquid well head medicine-adding be that the general discharge capacity of injection pump is larger, medicament is by borehole wall absorption loss in mineshaft annulus, when medicament arrives shaft bottom, concentration is lower, and unstable.Solid down-hole slowly-releasing dosing technology is by the disposable shaft bottom of rendering to of curing medicament, allows the solid chemicals automatic dissolving, owing to being subject to curing process, downhole temperature, flow velocity, and the impact of the factors such as medicament and well liquid area of contact, solid chemicals is difficult to uniform dissolution in down-hole.Therefore adopt the down-hole liquid releasing device, discharge pump by down-hole liquid and can control evenly slowly release of liquid preparation, require discharge capacity little, precision is high.
Pump output commonly used is large, and precision is low, and the plunger pump discharge capacity is little, but precision is not high, control complexity, and the reciprocating pump relative displacement is little, and precision is high.But, because the down-hole liquid releasing device is the oil pipe lower end, position, in the oil well bottom, is immersed in profit fully, therefore require the liquid entering hole of pump to be communicated with the liquid storage oil pipe, the external diameter of pump is less than oil well casing, and motor and power supply can immerse by grease proofing water, and pump will have certain heatproof and resistance to pressure.At present, reciprocating pump and motor volume are larger, and apparent size is irregular, can't be connected with oil pipe.Therefore, need a kind of can being connected on oil pipe of invention, be placed on the reciprocating pump of oil well.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of continuous release down-hole reciprocating pump.
The purpose of this utility model is: a kind of continuous release down-hole reciprocating pump is provided, can be connected to the production tube bottom, realize that liquid preparation is continuous in down-hole, quantitatively discharge, overcome well head and inject the medicament loss caused.
The technical solution adopted in the utility model is: a kind of continuous release down-hole reciprocating pump, the filtration group is embedded in above the first upper connection by screw thread, the first pillar and the first upper connection are threaded connection, piston sleeve is in the first pillar, be threaded connection below the first upper connection, the first piston bar is connected with transmission group by screw thread, transmission group is fixed on piston sleeve by bearing, one end of transmission shaft is nested in the first middle joint, the first pillar is threaded with the first middle joint, be threaded with the first middle joint motor and control circuit board of the second pillar is fixed in the first lower contact, the first lower contact is threaded with the second pillar, the first lower contact is threaded with battery pack,
The first upper connection has external thread buckle up and down, and in the middle of upper and lower, the internal thread button is arranged, above interior threaded hole with the circular crosssection of following tapped hole, have opening to be communicated with, there is intercommunicating pore following tapped hole and joint side;
The filtration group is the hollow cylinder with filter screen, and the filtration group is connected with the first upper connection by top internal thread button;
Outer linking below the first pillar and the first upper connection connects, and links in below piston sleeve and the first upper connection and connects;
An one-way valve is respectively arranged on the upper body of the bottom of piston sleeve and first piston bar, and there is a lead channel at the piston sleeve middle part, and a locating stud is arranged on first piston bar centre, vertical with the first piston bar, can be movable in the lead channel of piston sleeve;
One end band male thread of first piston bar, with transmission group, be threaded, on transmission group with bearing, bearing is fixed on piston sleeve, one end of transmission group is fixed with a square magnetic steel, magnet steel four sides up and down is wrapped, and before and after only having, both sides are exposed, and magnet steel is nested in the circular groove of the first middle joint;
The first pillar, the second pillar and the first middle joint are threaded connection, and in the middle of the first middle joint, seal, and there is circular groove upper end, and there is corresponding annular groove lower end;
Motor one end has been fixed the ring cylinder of an aluminum, on the ring cylinder, has fixed four blocks of magnet, and magnet positions is symmetrical; Ring cylinder is nested in the annular groove of the first middle joint, and four blocks of magnet on the ring cylinder and the magnet steel of transmission group are at grade;
Motor and control circuit board are fixed in the first lower contact, and the first lower contact and the second pillar are threaded connection.
The method of the automatic releasing liquid of a kind of energy, contain following steps; Liquid is by the filtration group, enter the annular space of pillar and piston sleeve, when motor rotates counterclockwise, rotate with four blocks of magnet on the rotating ring cylinder, make also and then to rotate with the transmission group of magnet steel, transmission group is rotated counterclockwise, pull piston rod and piston to move downward, piston sleeve closed check valve now, the piston one-way valve opens, liquid enters the piston storehouse by the lead channel of piston sleeve and the one-way valve of piston; When motor clockwise rotates, transmission group turns clockwise and promotes piston rod and move upward, the piston closed check valve, and the piston sleeve one-way valve opens, the liquid in the piston storehouse flows out from the piston sleeve one-way valve.By controlling the clockwise of motor and being rotated counterclockwise, make the liquid preparation continuous release out, and the frequency of rotating by control and time can obtain the flow needed.
After the circuit framework energising, form magnetic field, drive magnet steel and rotate, when magnet steel clockwise rotates, tape spool clockwise rotates, and the interior piston rod of nut pipe that is enclosed within axle moves downward along axis, and closed check valve forms negative pressure, one-way valve opens in the piston storehouse.Liquid enters the annular space of the second pillar and piston sleeve by the filtration group, then, from the transmission body passage of piston rod, through one-way valve, enter the piston storehouse.When current direction reverses, magnet steel rotates counterclockwise, and the band moving axis rotates counterclockwise, and piston rod moves upward along axis, and closed check valve forms malleation in the piston storehouse, one-way valve opens, and in the piston storehouse, liquid flows out from one-way valve.By the reciprocating frequency of control piston bar and stroke, can obtain the flow needed.
The beneficial effects of the utility model: the utility model oil gas field down-hole reciprocating pump, 1 utilizes oil well inspection pump opportunity, by the stock-solution pipe of medicament being housed and discharging pump, is connected to the oil well production string end, and Placement adopts threaded collar joint to connect, and constructing operation is convenient.2 from charged pool as power supply, do not need extra power.Battery can anti-120 ℃ of high temperature, and battery efficiency is high, and electric pump power is little, and battery can maintain and discharge pump continuous service 2 years.3 can control and discharge pump delivery by control chip, reach the concentration of medicament design, realize that medicament is automatic, quantitative, continuous release, maximum performance powder performance.4 release pump delivery regulation ranges are 5～100ml/ hour.
The accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is down-hole piston pump structure generalized section for the utility model oil gas field.
Fig. 2 is down-hole piston pump structure schematic diagram for the utility model oil gas field.
Fig. 3 is the utility model transmission group structural representation.
Fig. 4 is the utility model piston rod construction schematic diagram.
Fig. 5 is the utility model one-way valve structures schematic diagram.
Fig. 6 is the utility model filter screen group structural representation.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6,
A kind of continuous release down-hole reciprocating pump,
Consult Fig. 1, filtration group 101 is embedded in above the first upper connection 114 by screw thread, the first pillar 113 and the first upper connection 114 are threaded connection, piston sleeve 103 is in the first pillar 113, be threaded connection below the first upper connection 114, first piston bar 104 is connected with transmission group 105 by screw thread, transmission group 105 is fixed on piston sleeve 103 by bearing, one end of transmission shaft is nested in the first middle joint 110, the first pillar 113 is threaded with the first middle joint 110, be threaded with the first middle joint 110 motor 106 and control circuit board 107 of the second pillar 109 is fixed in the first lower contact 108, the first lower contact 108 is threaded with the second pillar 109, the first lower contact 108 is threaded with battery pack.
The first upper connection 114 has external thread buckle up and down, and in the middle of upper and lower, the internal thread button is arranged, above interior threaded hole with the circular crosssection of following tapped hole, have opening to be communicated with, there is intercommunicating pore 102 following tapped hole and joint side.
Outer linking below the first pillar 113 and the first upper connection 114 connects, piston sleeve 103 and the first upper connection 114 following in link and connect.
An one-way valve is respectively arranged on the upper body of the bottom of piston sleeve 103 and first piston bar 104, there is a lead channel 111 at piston sleeve 103 middle parts, a locating stud 112 is arranged on first piston bar 104 centres, vertical with first piston bar 104, can be movable in the lead channel 111 of piston sleeve 103.
One end band male thread of first piston bar 104, with transmission group 105, be threaded, on transmission group 105 with bearing, bearing is fixed on piston sleeve 103, one end of transmission group 105 is fixed with a square magnetic steel, magnet steel four sides up and down is wrapped, and before and after only having, both sides are exposed, and magnet steel is nested in the circular groove of the first middle joint 110.
The first pillar 113, the second pillar 109 and the first middle joint 110 are threaded connection, and in the middle of the first middle joint 110, seal, and there is circular groove upper end, and there is corresponding annular groove lower end.
Consult Fig. 2.The utility model oil gas field down-hole reciprocating pump, lower helmet 1 connects lower contact 3, the first seal ring 2 is connected between lower helmet 1 and lower contact 3, with hole, with back-up ring 19, the bottom in lower contact 3 is connected single core socket 18, the other end of lower contact 3 is connected with the 3rd pillar 5, the other end of the 3rd pillar 5 is connected with middle joint 7, the second seal ring 6 is connected between the 3rd pillar 5 and middle joint 7, in the hole of the 3rd pillar 5 of circuit framework 4 between middle joint 7 and lower contact 3, be connected, the other end of middle joint 7 is connected with the 4th pillar 11, the other end of the 4th pillar 11 is connected with upper connection 15, the other end of upper connection 15 is connected with upper helmet 17, the speed upper end of upper connection 15 connects filter screen group 16 and connects, the second piston sleeve 10 connects in the hole of upper connection 15, connect piston rod 9 in the second piston sleeve 10, piston rod 9 connects the second transmission group 8, one-way valve 12 is connected to the top of the second piston sleeve 10, the 3rd seal ring 13 is connected between the second piston sleeve 10 and upper connection 15, between the 4th seal ring 14 the 4th pillar 11 and upper connection 15.
Consult Fig. 3.The structure of transmission group 8: when electrical power rotates, magnet steel 30 rotates and passes through coupling 31 band moving axis 34 and rotate, and axle 34 upper ends are the nut pipe, and its screw thread and piston rod 9 screw rods are supporting, when axle 34 rotates, drive piston rod 9 along axial-movement;
Screw M4X828 is fixedly connected with magnet steel 30 by magnet steel baffle plate 29, and magnet steel 30 connects coupling 31, by bearing pin 32 and taper pin 33, is connected and fixed axle 34 and coupling 31, axle 34 connection bearing end caps 35, bearing 36 and axle sleeve 37.
Consult Fig. 4.The structure of piston rod 9: one-way valve 42 is identical with one-way valve 12 specifications and models.Transmission body has feed pathway, with one-way valve 12, is communicated with, and transmission body 39 shank portion are screw rod, and the effect of piston rod 9 is pumping liquids, by liquid in pipe from one-way valve 42 sucker storehouses, then from one-way valve 12 discharge tubes;
Locating stud 38 connection for transmission bodies 39, transmission body 39 connects piston upper body 41, and Glais ring 40 is connected to the circumference of piston upper body 41, connects one-way valve 42 in 41De hole, piston upper body.
Consult Fig. 5, the structure of one-way valve 12: the 5th seal ring 43 connects valve body 45, connects valve head 44, spring 46 and top cover 47 in the hole of valve body 45; The effect of one-way valve 12 is to make the liquid can only one-way flow.
Consult Fig. 6, the structure of filtration group 101: connect 120 order filter screen 49,20 order filter screens 50, packing ring 51 and filter screen nut 52 in the hole of net 48, the effect of filtration group 101 is to prevent that impurity from entering in the pump housing, causes passage to stop up or affect the normal operation of moving element.
Battery pack is comprised of a Battery pack box Stainless Steel Tube, an end sealing of Stainless Steel Tube, and an end has power plug, can insert in the supply hub of lower contact, and battery pack and lower contact are threaded connection.
16V high temp. lithium sulfurous battery for power acquisition, for motor provides electric current.Control circuit board is the core component of reciprocating pump, and the effect of control circuit board is to control the powered battery opening and closing time, and the line current direction, realizes moving back and forth of transmission group.
Embodiment 2:
The method of the automatic releasing liquid of a kind of energy, contain following steps; Liquid is by the filtration group, enter the annular space of pillar and piston sleeve, when motor rotates counterclockwise, rotate with four blocks of magnet on the rotating ring cylinder, make also and then to rotate with the transmission group of magnet steel, transmission group is rotated counterclockwise, pull piston rod and piston to move downward, piston sleeve closed check valve now, the piston one-way valve opens, liquid enters the piston storehouse by the lead channel of piston sleeve and the one-way valve of piston; When motor clockwise rotates, transmission group turns clockwise and promotes piston rod and move upward, the piston closed check valve, and the piston sleeve one-way valve opens, the liquid in the piston storehouse flows out from the piston sleeve one-way valve.By controlling the clockwise of motor and being rotated counterclockwise, make the liquid preparation continuous release out, and the frequency of rotating by control and time can obtain the flow needed.
After circuit framework 4 energisings, form magnetic field, drive magnet steel 30 and rotate, when magnet steel 30 clockwise rotates, tape spool 34 clockwise rotates, and the interior piston rod 9 of nut pipe that is enclosed within axle 34 moves downward along axis, one-way valve 12 is closed, and forms negative pressure in the piston storehouse, and one-way valve 42 is opened.Liquid enters the annular space of the second pillar II 11 and piston sleeve 10 by filtration group 16, then, from transmission body 39 passages of piston rod 9, through one-way valve 42, enter the piston storehouse.When current direction reverses, magnet steel rotates counterclockwise, and band moving axis 34 rotates counterclockwise, and piston rod 9 moves upward along axis, and one-way valve 42 is closed, and forms malleation in the piston storehouse, and one-way valve 12 is opened, and in the piston storehouse, liquid flows out from one-way valve 12.By the reciprocating frequency of control piston bar 9 and stroke, can obtain the flow needed.
As mentioned above, embodiment of the present utility model is explained, but, as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation also all is included in protection domain of the present utility model.
Claims (1)
1. a continuous release down-hole reciprocating pump, it is characterized in that: the filtration group is embedded in above the first upper connection by screw thread, the first pillar and the first upper connection are threaded connection, piston sleeve is in the first pillar, be threaded connection below the first upper connection, the first piston bar is connected with transmission group by screw thread, transmission group is fixed on piston sleeve by bearing, one end of transmission shaft is nested in the first middle joint, the first pillar is threaded with the first middle joint, be threaded with the first middle joint motor and control circuit board of the second pillar is fixed in the first lower contact, the first lower contact is threaded with the second pillar, the first lower contact is threaded with battery pack,
The first upper connection has external thread buckle up and down, and in the middle of upper and lower, the internal thread button is arranged, above interior threaded hole with the circular crosssection of following tapped hole, have opening to be communicated with, there is intercommunicating pore following tapped hole and joint side;
The filtration group is the hollow cylinder with filter screen, and the filtration group is connected with the first upper connection by top internal thread button;
Outer linking below the first pillar and the first upper connection connects, and links in below piston sleeve and the first upper connection and connects;
An one-way valve is respectively arranged on the upper body of the bottom of piston sleeve and first piston bar, and there is a lead channel at the piston sleeve middle part, and a locating stud is arranged on first piston bar centre, vertical with the first piston bar, can be movable in the lead channel of piston sleeve;
One end band male thread of first piston bar, with transmission group, be threaded, on transmission group with bearing, bearing is fixed on piston sleeve, one end of transmission group is fixed with a square magnetic steel, magnet steel four sides up and down is wrapped, and before and after only having, both sides are exposed, and magnet steel is nested in the circular groove of the first middle joint;
The first pillar, the second pillar and the first middle joint are threaded connection, and in the middle of the first middle joint, seal, and there is circular groove upper end, and there is corresponding annular groove lower end;
Motor one end has been fixed the ring cylinder of an aluminum, on the ring cylinder, has fixed four blocks of magnet, and magnet positions is symmetrical; Ring cylinder is nested in the annular groove of the first middle joint, and four blocks of magnet on the ring cylinder and the magnet steel of transmission group are at grade;
Motor and control circuit board are fixed in the first lower contact, and the first lower contact and the second pillar are threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203198886U CN203321769U (en) | 2013-06-05 | 2013-06-05 | Continuous release downhole piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203198886U CN203321769U (en) | 2013-06-05 | 2013-06-05 | Continuous release downhole piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321769U true CN203321769U (en) | 2013-12-04 |
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ID=49661126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203198886U Withdrawn - After Issue CN203321769U (en) | 2013-06-05 | 2013-06-05 | Continuous release downhole piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214069A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Method with liquid capable of being released automatically and continuous release downhole piston pump |
| CN112392439A (en) * | 2020-12-04 | 2021-02-23 | 中国石油天然气股份有限公司 | Underground medicament controlled release device and control method for oil-water well |
-
2013
- 2013-06-05 CN CN2013203198886U patent/CN203321769U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214069A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Method with liquid capable of being released automatically and continuous release downhole piston pump |
| CN104214069B (en) * | 2013-06-05 | 2016-09-07 | 中国石油天然气股份有限公司 | A kind of method that can be automatically releasable liquid and continuously release down-hole piston pump |
| CN112392439A (en) * | 2020-12-04 | 2021-02-23 | 中国石油天然气股份有限公司 | Underground medicament controlled release device and control method for oil-water well |
| CN112392439B (en) * | 2020-12-04 | 2022-12-02 | 中国石油天然气股份有限公司 | Underground medicament controlled release device and control method for oil-water well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |