CN205172854U - Oil -field auxiliary device - Google Patents
Oil -field auxiliary device Download PDFInfo
- Publication number
- CN205172854U CN205172854U CN201520935654.3U CN201520935654U CN205172854U CN 205172854 U CN205172854 U CN 205172854U CN 201520935654 U CN201520935654 U CN 201520935654U CN 205172854 U CN205172854 U CN 205172854U
- Authority
- CN
- China
- Prior art keywords
- cavity
- pump barrel
- sealing ring
- piston
- oil well
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000003129 oil well Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000010779 crude oil Substances 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to an oil -field auxiliary device, including pump barrel and piston rod, the sealing device of pump barrel upper end and the end cover of lower extreme form a sealed pump barrel cavity jointly, wherein, the piston that piston rod one end has lies in the pump barrel cavity and is divided into cavity and lower cavity with the pump barrel cavity, be equipped with feed liquor single current valve and play liquid single current valve on the last cavity of pump barrel department and the end cover respectively. The utility model discloses a go up that cavity and cavity of resorption are indoor all puts different medicaments, make progress in the sealed cavity of piston rod at the pump barrel and during the downstream, all can force the discharge and the suction of medicament. Therefore, the utility model discloses simple structure is convenient for maintain, can realize adding the medicine in succession to oil well and gathering pipeline simultaneously, and scale deposit in the solution production, wax deposition, anticorrosive scheduling problem can be realized the crude oil viscosity reduction simultaneously and carry, reduce the technological effect of producing pressure drop.
Description
Technical Field
The utility model relates to an oil well exploitation field, in particular to be used for oil well and defeated pipeline of collection to add medicine device in succession.
Background
In oil well production, in order to prolong the pump detection period and improve the production efficiency of an oil well, chemical agents such as a corrosion inhibitor, a scale inhibitor and the like are required to be added into the oil well, so as to achieve the purposes of corrosion inhibition, wax prevention and scale prevention. Meanwhile, in order to prevent wax deposition in the gathering and transportation pipeline, reduce gathering and transportation pressure difference and reduce line sweeping frequency, chemical agents such as wax removing agents and the like need to be added into the gathering and transportation pipeline. The currently adopted dosing mode is as follows: the manual pump is adopted to feed the casing pipe in batches intermittently, so that the drug effect is fluctuated, the drug effect cannot be fully exerted, and the oil well is laid down or the pipeline is scaled and waxed, thereby influencing the crude oil production.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: the utility model provides an oil well adds medicine device in succession, it has solved current oil well medicine difficulty, can not add the medicine to oil well and gathering pipeline simultaneously problem.
In order to achieve the above object, the utility model adopts the following technical scheme:
a continuous dosing device for an oil well comprises a pump cylinder and a piston connecting rod, wherein a sealing device at the upper end of the pump cylinder and an end cover at the lower end of the pump cylinder jointly form a sealed pump cylinder chamber; the piston arranged at one end of the piston connecting rod is positioned in the pump cylinder cavity and divides the pump cylinder cavity into an upper cavity and a lower cavity; and the upper chamber of the pump barrel and the end cover are respectively provided with a liquid inlet check valve and a liquid outlet check valve.
The oil well continuous dosing device is characterized in that a gasket and an adjusting nut are arranged at the other end of the piston connecting rod, and a return spring is sleeved outside the piston screw rod between the gasket and the sealing device.
The oil well continuous dosing device comprises a sealing ring seat, the lower end of the sealing ring seat is inserted into the upper end of the pump barrel and is in threaded connection with the upper end of the pump barrel, the sealing ring seat is sealed with the pump barrel through an O-shaped sealing ring, a plurality of sealing rings are arranged between the sealing ring seat and the connecting rod, and a sealing ring gland is buckled on the sealing ring seat through threaded connection.
The oil well continuous dosing device is characterized in that the end cover is sleeved at the lower end of the pump barrel in a threaded manner.
Compared with the prior art, adopt above-mentioned technical scheme the utility model has the advantages of: the utility model discloses an all put different medicaments in last cavity and the lower cavity, when piston rod upwards and during the downstream in the sealed cavity of a pump section of thick bamboo, all can force the discharge and the suction of medicament. Therefore, the utility model discloses simple structure, the maintenance of being convenient for can realize adding the medicine in succession to oil well and gathering pipeline simultaneously, solves scale deposit, wax precipitation, anticorrosive scheduling problem in the production, can realize the crude oil viscosity reduction simultaneously and carry, reduces pressure differential's technological effect.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic structural view of the piston rod of the present invention;
fig. 3 is a schematic structural view of the sealing ring gland of the present invention;
fig. 4 is a schematic structural view of the seal ring seat of the present invention;
FIG. 5 is a schematic structural view of the pump barrel of the present invention;
fig. 6 is a schematic structural view of the lower chamber end cap of the present invention.
Description of reference numerals: 1-sealing ring gland; 2-sealing ring; 3-sealing ring seat; 4-O type sealing ring; 5-a pump cylinder; 6-upper chamber goes out liquid check valve; 7-a piston; 8-end cap; 9-discharging a liquid check valve from the lower chamber; 10-a liquid inlet check valve of the lower chamber; 11-a lower chamber; 12-an upper chamber liquid inlet check valve; 13-an upper chamber; 14-a piston rod; 15-a return spring; 16-a gasket; 17-adjusting the nut.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings, the advantages and features of which will become more apparent as the description proceeds.
As shown in fig. 1, for the utility model discloses the sectional structure schematic diagram of oil well continuous charge device, wherein, the utility model discloses a pump barrel 5 of a tube-shape (shown as fig. 5 simultaneously), the upper end of shown pump barrel 5 is equipped with sealing device, and the lower extreme is equipped with end cover 8 (shown as fig. 6 simultaneously), and sealing device, pump barrel 5 and end cover 8 form a sealed pump barrel cavity jointly, and wherein sealing device includes seal ring seat 3, seal ring and seal ring gland 1 (shown as fig. 3).
The upper end of the pump barrel 5 is provided with internal threads, the lower end of the pump barrel 5 is provided with external threads, the pump barrel 5 is connected with a sealing ring seat 3 (shown in figure 4) through the internal threads at the upper end, a sealing ring 2 which is sleeved on the piston connecting rod 14 is arranged in the sealing ring seat 3, and is buckled at the upper part of the sealing ring seat 3 through a sealing ring gland 1 to carry out thread sealing; an O-shaped sealing ring 4 is arranged between the sealing ring seat 3 and the pump cylinder 5 for further sealing, and the pump cylinder 5 is connected with an end cover 8 through external threads at the lower end.
As shown in fig. 1, the utility model discloses an one end of piston rod 14 includes a piston 7, and piston 7 is located sealed cavity to divide into cavity 13 and lower cavity 11 with sealed cavity, pack into different medicaments respectively according to the needs that use in cavity 13 and lower cavity 11, pump barrel 5 (as shown in fig. 5) is equipped with two mouths to be equipped with upper chamber inlet check valve and upper chamber play liquid check valve 6 respectively in two mouths 'department, also be equipped with two mouths on end cover 8 (as shown in fig. 6), in this embodiment, end cover 8's lower cavity inlet check valve 10 sets up the bottom at end cover 8, and lower cavity goes out liquid valve 9 and sets up the one side at end cover 8. The details and the form of the technical proposal are modified or replaced and all fall into the protection scope of the utility model.
The other end of the piston connecting rod 14 comprises a gasket 16 and an adjusting nut 17, and the piston screw rod 14 is sleeved with a return spring 15 between the gasket 16 and the sealing device for automatic return.
According to the structure, work as the utility model discloses during the use, fix the oil well in succession charge device at the oil recovery well head, install the checkpost of taking the baffle on the polished rod, utilize the polished rod as power. When the polish rod moves downwards, the clamp is driven to move downwards, the piston connecting rod 14 is driven to move downwards by the clamp, the piston 7 moves downwards, so that the volume of the upper chamber 13 is increased, the vacuum degree is formed, the upper chamber liquid outlet check valve 6 is closed, the upper chamber liquid inlet check valve 12 is opened, the upper chamber 13 sucks in the medicament, meanwhile, the volume of the lower chamber 11 is reduced, the pressure is increased, the lower chamber liquid inlet check valve 10 is closed, the lower chamber liquid outlet check valve 9 is opened, and the lower chamber 11 discharges the medicament; when the polish rod moves upwards, the piston connecting rod 14 is driven to move upwards under the action of the return spring 15, the piston 7 moves upwards, so that the volume of the upper chamber 13 is reduced, the pressure is increased, the upper chamber liquid inlet check valve 12 is closed, the upper chamber liquid outlet check valve 6 is opened, the upper chamber 13 discharges the medicament, meanwhile, the volume of the lower chamber 11 is increased, the vacuum degree is formed, the lower chamber liquid outlet check valve 9 is closed, the lower chamber liquid inlet check valve 10 is opened, and the lower chamber 11 sucks the medicament; therefore, continuous dosing to the oil well and the gathering pipeline is realized, the problems of scaling, wax deposition, corrosion prevention and the like in production are solved, and the technical effects of reducing viscosity and conveying of crude oil and reducing production pressure difference are achieved.
The foregoing description and examples are exemplary only, and are not intended to limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (4)
1. The continuous dosing device for the oil well is characterized by comprising a pump cylinder and a piston connecting rod, wherein a sealing device at the upper end of the pump cylinder and an end cover at the lower end of the pump cylinder jointly form a sealed pump cylinder chamber; wherein,
a piston arranged at one end of the piston connecting rod is positioned in the pump cylinder cavity and divides the pump cylinder cavity into an upper cavity and a lower cavity; and the upper chamber of the pump barrel and the end cover are respectively provided with a liquid inlet check valve and a liquid outlet check valve.
2. The oil well continuous dosing device according to claim 1, wherein the other end of the piston connecting rod is provided with a gasket and an adjusting nut, and the piston screw rod is sleeved with a return spring between the gasket and the sealing device.
3. The continuous chemical adding device for the oil well as defined in claim 1, wherein the sealing device comprises a sealing ring seat, the lower end of the sealing ring seat is inserted into the upper end of the pump barrel and is in threaded connection with the upper end of the pump barrel, the sealing ring seat and the pump barrel are sealed through O-shaped sealing rings, a plurality of sealing rings are arranged between the sealing ring seat and the connecting rod, and a sealing ring gland is buckled on the sealing ring seat through threaded connection.
4. The oil well continuous dosing device according to claim 1, wherein the end cap is threaded onto the lower end of the pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520935654.3U CN205172854U (en) | 2015-11-20 | 2015-11-20 | Oil -field auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520935654.3U CN205172854U (en) | 2015-11-20 | 2015-11-20 | Oil -field auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172854U true CN205172854U (en) | 2016-04-20 |
Family
ID=55736856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520935654.3U Expired - Fee Related CN205172854U (en) | 2015-11-20 | 2015-11-20 | Oil -field auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172854U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2664568C1 (en) * | 2017-09-15 | 2018-08-21 | Общество с ограниченной ответственностью (ООО) "ЛУКОЙЛ-ПЕРМЬ" | Device for dosing reagent in a well |
| CN108643864A (en) * | 2018-03-29 | 2018-10-12 | 魏宇骞 | The application method of water injection well chemical scale inhibition apparatus for eliminating sludge |
| RU190164U1 (en) * | 2018-07-03 | 2019-06-21 | Михаил Николаевич Оверченко | PISTON PUMP |
| RU2720724C1 (en) * | 2019-07-31 | 2020-05-13 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Reagent feeder on rope suspension |
| CN115012878A (en) * | 2022-06-30 | 2022-09-06 | 西南石油大学 | Double-layer pipe-based inhibitor filling system for sulfur-containing gas well without production stop |
-
2015
- 2015-11-20 CN CN201520935654.3U patent/CN205172854U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2664568C1 (en) * | 2017-09-15 | 2018-08-21 | Общество с ограниченной ответственностью (ООО) "ЛУКОЙЛ-ПЕРМЬ" | Device for dosing reagent in a well |
| CN108643864A (en) * | 2018-03-29 | 2018-10-12 | 魏宇骞 | The application method of water injection well chemical scale inhibition apparatus for eliminating sludge |
| CN108643864B (en) * | 2018-03-29 | 2020-07-14 | 嘉兴市康立德构件股份有限公司 | Use method of chemical anti-scaling and descaling device for water injection well |
| RU190164U1 (en) * | 2018-07-03 | 2019-06-21 | Михаил Николаевич Оверченко | PISTON PUMP |
| RU2720724C1 (en) * | 2019-07-31 | 2020-05-13 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Reagent feeder on rope suspension |
| CN115012878A (en) * | 2022-06-30 | 2022-09-06 | 西南石油大学 | Double-layer pipe-based inhibitor filling system for sulfur-containing gas well without production stop |
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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 |
Granted publication date: 20160420 Termination date: 20211120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |