CN203230388U - Downhole liquid release device for oil and gas fields - Google Patents
Downhole liquid release device for oil and gas fields Download PDFInfo
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- CN203230388U CN203230388U CN 201320112297 CN201320112297U CN203230388U CN 203230388 U CN203230388 U CN 203230388U CN 201320112297 CN201320112297 CN 201320112297 CN 201320112297 U CN201320112297 U CN 201320112297U CN 203230388 U CN203230388 U CN 203230388U
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Abstract
The utility model relates to a downhole liquid release device for oil and gas fields and belongs to the technical field of oil and gas field development. A battery short section is connected with a piston pump through a coupling and a screw thread, the piston pump is connected with a liquid storage pipe through a coupling and a screw thread, the liquid storage pipe is connected with a liquid inlet pipe through a coupling and a screw thread, the liquid inlet pipe is connected with a plug through a coupling and a screw thread, and separating liquid is positioned between the liquid storage pipe and the liquid inlet pipe. Chemicals are placed in the liquid storage pipe, the separating liquid is added above the chemicals, the liquid inlet pipe is a sieve pipe with the lower portion provided with a screen cloth, and two ends of the liquid inlet pipe are provided with screw threads, two ends of the plug are provided with screw threads, the piston pump is cylindrical in shape, two ends of the piston pump are connected with the liquid storage pipe and the battery short section through screw threads, and the battery short section is composed of a high-temperature efficient battery and a stainless steel protecting pipe. Along with release of the liquid chemicals, the chemicals in the liquid storage pipe are reduced, the liquid level is lowered, a liquid separating piston also moves downwards, liquid in a shaft enters the liquid storage pipe through the liquid inlet pipe, system pressure balance is guaranteed, and due to the liquid separating piston, the liquid entering the shaft cannot be mixed with the liquid chemicals in the liquid storage pipe.
Description
Technical field
The utility model relates to a kind of oil gas field down-hole liquid releasing device, belongs to the oil-gas field development technical field.
Background technology
In oilfield development process, usually need in oil well, to add various chemical agents, to reach purposes such as anticorrosion, antiscale, wax control, reduce the oil well production fault, safeguard the ordinary production of oil well.
At present, the mode of oil well dosing employing mainly contains the dosing of liquid well head and two kinds of methods of solid down-hole slowly-releasing dosing.The dosing of liquid well head is that medicament is added the oil jacket annular space from well head, and medicament flows to the down-hole under the gravity effect.Because the medicament dosage is little, add self volatilization and tube wall absorption, the amount that medicament arrives pit shaft can not reach designing requirement.The well head dosing need increase manual maintenance in addition, and it is loaded down with trivial details to work, if the dosing well is many, or the dosing well location is in the outlying district, and attendant's working strength is very big.Solid down-hole slowly-releasing dosing technology at first needs General Medicine is cured processing, puts into the loading oil pipe then, is connected to flow string bottom.Dosing speed depends on the rate of release of solid chemicals, and the rate of release of medicament is subjected to the performance of curing compound own, curing process, downhole temperature, flow velocity, factor affecting such as medicament and well liquid contact area are bigger, because down-hole situation complexity, rate of release is difficult to control, therefore, be difficult to guarantee that medicament evenly discharges.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of oil gas field down-hole liquid releasing device, realizes that the liquid down-hole is automatic, continuous, quantitatively discharges.
A kind of oil gas field down-hole liquid releasing device is made up of plug, feed tube, separation liquid, liquid storage pipe, piston pump, battery pipe nipple; The battery pipe nipple is by box cupling and screwed connection piston pump, and piston pump is by box cupling and screwed connection liquid storage pipe, and liquid storage pipe is by box cupling and screwed connection feed tube, and feed tube has the separation liquid level by box cupling and screwed connection plug between liquid storage pipe and the feed tube.
Feed tube is the screen casing that screen cloth is arranged down, and two ends are provided with screw thread; There is screw thread at plug two; Piston pump is cylindric; The battery pipe nipple is made up of high temperature high-efficiency battery and stainless steel pillar.
Characteristics are as follows:
1, the utility model is made up of plug, feed tube, separation liquid, liquid storage pipe, piston pump, battery pipe nipple.
2, from bottom to up, use box cupling and screwed connection battery pipe nipple, piston pump, liquid storage pipe, feed tube, plug.Powder charge agent in the liquid storage pipe after installing, adds above the medicament and separates liquid.
3, feed tube is the screen casing that screen cloth is arranged down, and two ends are provided with screw thread.There is screw thread at plug two.
4, separate the liquid of liquid for not dissolving each other and do not react with medicament, well liquid, its density is less than medicament density, and greater than the liquid-tight degree of well.
5, the piston pump outward appearance is cylindric, and two ends are connected with the battery pipe nipple with liquid storage pipe by screw thread.
6, the battery pipe nipple is made up of high temperature high-efficiency battery and stainless steel pillar.
A kind of oil gas field down-hole liquid method for releasing: the down-hole liquid releasing device that medicament will be housed is connected the flow string below, be lowered into the oil well bottom, piston pump is started working according to setup parameter, according to certain flow velocity medicament is discharged into the oil well from liquid storage pipe, and oil well is played a role.Release along with liquid preparation, medicament reduces in the liquid storage pipe, liquid level descends, separating liquid piston also moves downward, liquid in the pit shaft leads to into, and feed tube enters liquid storage pipe, guarantee system pressure balance, and because the liquid piston separator, the interior liquid preparation of the pit shaft liquid that can not that enters and liquid storage pipe mixes.
The beneficial effects of the utility model: the down-hole liquid releasing device that medicament will be housed is connected to the oil well production string end, open switch, set the parameter of piston pump according to the dosage of medicament design, realize that medicament automatically, quantitatively, discharge continuously, makes powder performance obtain maximum performance.Discharging discharge capacity is 5～100ml/ hour, sustainable operation 2 years.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1 and Figure 2,
A kind of oil gas field down-hole liquid releasing device is made up of plug 1, feed tube 2, separation liquid level 3, liquid storage pipe 4, piston pump 5, battery pipe nipple 6; Battery pipe nipple 6 is by box cupling and screwed connection piston pump 5, piston pump 5 is by box cupling and screwed connection liquid storage pipe 4, liquid storage pipe 4 is by box cupling and screwed connection feed tube 2, and feed tube 2 has the liquid level 3 of separation by box cupling and screwed connection plug 1 between liquid storage pipe 4 and the feed tube 2; Powder charge agent in the liquid storage pipe 4 after installing, adds above the medicament and separates liquid; Feed tube 2 is the screen casing that screen cloth is arranged down, and two ends are provided with screw thread; There is screw thread at plug 1 two; Separate the liquid of liquid for not dissolving each other and do not react with medicament, well liquid, its density is less than medicament density, and greater than the liquid-tight degree of well; Piston pump 5 outward appearances are cylindric, and two ends are connected with battery pipe nipple 6 with liquid storage pipe 4 by screw thread; Battery pipe nipple 6 is made up of high temperature high-efficiency battery and stainless steel pillar.
A kind of oil gas field connects oil pipe 7, oil well pump 8, production tube 9 with the top of down-hole liquid releasing device; Put into oil well 10, the bottom of oil well 10 is oil reservoir 11.
Embodiment 2:
Be example with certain oil well, this casing is 5 of API standard
1/2The well production tube is 2 of API standard
7/8Oil pipe, average pump detection period 1 year, every day production fluid amount 50 sides, production fluid density is 0.92g/cm
3, be guaranteeing the oil well ordinary production, the density that daily requirement adds 20ppm in this well continuously is 1.2g/cm
3Medicament A.
Be 0.58ml/min according to above data computation and the rate of release of setting piston pump, when oil well operation completion, connect battery pipe nipple and piston pump and 11 2
7/8Liquid storage pipe adds 365 kilograms of (about 304 liters) medicament A in liquid storage pipe, adding 3 kilograms of density then is 1.0～1.1g/cm
3Separating liquid.Connect feed tube and plug.To install by box cupling at last and be connected to production tube bottom, directly not be communicated with oil pipe because plug topmost, therefore installs.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (2)
1. an oil gas field down-hole liquid releasing device is characterized in that: be made up of plug, feed tube, separation liquid, liquid storage pipe, piston pump, battery pipe nipple; The battery pipe nipple is by box cupling and screwed connection piston pump, and piston pump is by box cupling and screwed connection liquid storage pipe, and liquid storage pipe is by box cupling and screwed connection feed tube, and feed tube has the separation liquid level by box cupling and screwed connection plug between liquid storage pipe and the feed tube.
2. a kind of oil gas field down-hole liquid releasing device according to claim 1 it is characterized in that feed tube is the screen casing that screen cloth is arranged down, and two ends is provided with screw thread; There is screw thread at plug two; Piston pump is cylindric; The battery pipe nipple is made up of high temperature high-efficiency battery and stainless steel pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112297 CN203230388U (en) | 2013-03-13 | 2013-03-13 | Downhole liquid release device for oil and gas fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112297 CN203230388U (en) | 2013-03-13 | 2013-03-13 | Downhole liquid release device for oil and gas fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230388U true CN203230388U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112297 Expired - Fee Related CN203230388U (en) | 2013-03-13 | 2013-03-13 | Downhole liquid release device for oil and gas fields |
Country Status (1)
| Country | Link |
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| CN (1) | CN203230388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672969B (en) * | 2015-12-29 | 2018-01-05 | 中国石油天然气股份有限公司 | Fireflood producing well corollary apparatus |
| 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 |
-
2013
- 2013-03-13 CN CN 201320112297 patent/CN203230388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672969B (en) * | 2015-12-29 | 2018-01-05 | 中国石油天然气股份有限公司 | Fireflood producing well corollary apparatus |
| 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 |
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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: 20131009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |