CN102913195A - Wellhead self-help dosing device - Google Patents
Wellhead self-help dosing device Download PDFInfo
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- CN102913195A CN102913195A CN2012104033556A CN201210403355A CN102913195A CN 102913195 A CN102913195 A CN 102913195A CN 2012104033556 A CN2012104033556 A CN 2012104033556A CN 201210403355 A CN201210403355 A CN 201210403355A CN 102913195 A CN102913195 A CN 102913195A
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- plunger pump
- quantitative plunger
- chest
- medicine
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Abstract
The invention relates to a wellhead self-help dosing device which is mainly used for solving the problems that an existing dosing device needs to be supported by separate power, is unstable in pressure, and needs frequent maintenance. The wellhead self-help dosing device is characterized in that a medical kit (1) is provided with an upper cover and a liquid outlet tube (3), wherein the liquid outlet tube (3) is communicated with a wellhead, a medicament is placed in the medical kit (1), a quantitative plunger pump (2) is fixed at the lower part inside the medical kit (1), the liquid inlet of the quantitative plunger pump (2) is communicated with the medical kit (1), the liquid outlet of the quantitative plunger pump (2) is communicated with the liquid outlet tube (3) through a one-way valve (4), a pressure initiating rod (5) is connected outside the quantitative plunger pump (2) by virtue of a hinge, one end of the pressure initiating rod (5) is connected with the upper end of a plunger of the quantitative plunger pump (2) by virtue of a hinge, and the other end of the pressure initiating rod (5) is connected with the walking beam of an oil pumping unit. The wellhead self-help dosing device has the characteristics of not needing to be supported by the separate power, and being stable in pressure, free from long-term maintenance, and long in service life.
Description
Technical field:
The present invention relates to the self-service chemicals dosing plant of oil extraction in oil field field oil well used chemicals dosing plant, especially well head.
Background technology:
In the oil extraction in oil field field, in order to prevent downhole tool wax deposition and fouling, need to inject to the down-hole Wax proofing and fouling medicament.Generally adopt at present chemicals dosing plant to the down-hole dosing.And existing chemicals dosing plant is because reasons in structure exists and needs the separate power support, and pressure transient needs the problem of frequent maintenance, be difficult to adapt to the field work condition, theftproof is poor, so that continuous dosing is difficult to carry out, thereby affect dosing efficient and quality, reduce the oil recovery benefit.
Summary of the invention:
Need the separate power support in order to solve existing chemicals dosing plant, pressure transient needs the problem of often safeguarding.The invention provides the self-service chemicals dosing plant of a kind of well head.The self-service chemicals dosing plant of this well head has does not need the separate power support, and pressure stability is non-maintaining for a long time, the characteristics of long service life.
Technical scheme of the present invention is: the self-service chemicals dosing plant of this well head comprises medicine-chest and quantitative plunger pump.Loam cake and drain pipe are arranged on the medicine-chest, drain pipe is connected with well head, medicament is arranged in the medicine-chest, quantitative plunger pump is fixed in the medicine-chest lower, the inlet of quantitative plunger pump is connected with medicine-chest, and the liquid outlet of quantitative plunger pump is connected with drain pipe by one way valve, and the outer chain connection of quantitative plunger pump has had depression bar, play the plunger upper end chain connection of depression bar one end and quantitative plunger pump, play the depression bar other end and be connected with walking beam on pumping units.
Be connected the chemical feeding quantity adjusting screw(rod) with hinged depression bar one end in plunger upper end of quantitative plunger pump in the such scheme, chemical feeding quantity adjusting screw(rod) lower end contacts with the quantitative plunger pump upper surface; Play the depression bar other end and be connected with walking beam on pumping units by the rope chain, the rope chain length can be regulated; On the chemical feeding quantity adjusting screw(rod) locking cap is arranged; Medicine-chest places in the theft-proof box: the rope chain is connected to the seal bar two ends, and seal bar places in the sealing shroud, and sealing shroud is fixed on the medicine-chest upper end.
The present invention has following beneficial effect: the self-service chemicals dosing plant of this well head is owing to having loam cake and drain pipe on the employing medicine-chest, drain pipe is connected with well head, medicament is arranged in the medicine-chest, quantitative plunger pump is fixed in the medicine-chest lower, the inlet of quantitative plunger pump is connected with medicine-chest, the liquid outlet of quantitative plunger pump is connected with drain pipe by one way valve, the outer chain connection of quantitative plunger pump has had depression bar, play the plunger upper end chain connection of depression bar one end and quantitative plunger pump, play optimizing structure that the depression bar other end is connected with walking beam on pumping units, utilize oil pumper to drive quantitative plunger pump toward the interior dosing of well, thereby realization does not need the separate power support, pressure stability, non-maintaining for a long time, the purpose that increases the service life.The self-service chemicals dosing plant of this well head has does not thus need the separate power support, and output pressure is high, and is non-maintaining for a long time, the characteristics of long service life.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention.
1-medicine-chest among the figure, the 2-quantitative plunger pump, the 3-drain pipe, the 4-one way valve, 5-plays depression bar, 6-chemical feeding quantity adjusting screw(rod), the 7-chain of restricting, 8-locking cap.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
As shown in the figure, the self-service chemicals dosing plant of this well head comprises medicine-chest 1 and quantitative plunger pump 2.Design the whole casing that can lock, medicine-chest 1 and all parts place theft-proof box, and are outside without too much stealing parts, loam cake and drain pipe 3 are arranged on the medicine-chest 1, and drain pipe 3 is connected with well head, in the medicine-chest 1 liquid preparation is arranged, open loam cake to medicine-chest 1 interior dosing, be communicated with well head by drain pipe 3.It is interior lower that quantitative plunger pump 2 is fixed on medicine-chest 1, quantitative plunger pump 2 is immersed in the medicament, the inlet of quantitative plunger pump 2 is located at the bottom in the medicine-chest, the inlet of quantitative plunger pump 2 is connected with medicine-chest 1, the liquid outlet of quantitative plunger pump 2 is connected with drain pipe 3 by one way valve 4, by quantitative plunger pump 2 injection pressure medicament in the well, prevent by one way valve 4 that medicament is counter and flow.Quantitative plunger pump 2 outer chain connections have had depression bar 5, play the plunger upper end chain connection of depression bar 5 one ends and quantitative plunger pump 2, be connected chemical feeding quantity adjusting screw(rod) 6 with hinged depression bar 5 one ends in plunger upper end of quantitative plunger pump 2, chemical feeding quantity adjusting screw(rod) 6 lower ends contact with quantitative plunger pump 2 upper surfaces, locking cap 8 is arranged on the chemical feeding quantity adjusting screw(rod) 6, adjusted the ram travel of quantitative plunger pump 2 by chemical feeding quantity adjusting screw(rod) 6, change chemical feeding quantity, and then change to the down-hole chemical feeding quantity, by locking cap 8 locking chemical feeding quantity adjusting screw(rod)s 6, prevent that chemical feeding quantity adjusting screw(rod) 6 is loosening.Playing depression bar 5 other ends is connected with seal bar by rope chain 7, seal bar places in the sealing shroud, sealing shroud is fixed on medicine-chest 1 upper end, the seal bar other end is connected under the walking beam by rope chain 7 and oil pumping machine well head one side again, utilize walking beam on pumping units to drive depression bar 5, play depression bar 5 and utilize lever principle to drive the plunger upward and downward of quantitative plunger pump 2, driven by walking beam on pumping units when up, press down by playing depression bar 5 deadweights when descending, make quantitative plunger pump (2) produce pressure to medicament and add the down-hole.
The course of work:
The drain pipe 3 of the self-service chemicals dosing plant of this well head is connected with well head, after depression bar 5 other end connects with walking beam on pumping units by rope chain 7, regulates chemical feeding quantity adjusting screw(rod) 6 and rope chain 7 length, can start oil pumper.Under the normal operation of oil pumper, having driven depression bar 5 by walking beam on pumping units moves up and down, play the plunger upward and downward that depression bar 5 drives quantitative plunger pump 2, make 2 pairs of medicaments of quantitative plunger pump produce pressure and add the down-hole, quantitative plunger pump 2 pumps with walking beam on pumping units and namely realizes continuous dosing thus.
The self-service chemicals dosing plant of this well head utilizes walking beam on pumping units to drive depression bar 5 as power and moves up and down, and realizes continuous dosing, eliminates existing chemicals dosing plant and need to set up separately power support, the problem of pressure transient.Simultaneously, because of simple in structure, so do not need frequent maintenance, long service life, and antifreeze, good anti-theft effect are difficult for stopping up.
The self-service chemicals dosing plant of this well head mainly is to have the integration design, and is antitheft; Take the technology such as cold-resistant heat-resisting, adapt to field condition; Adopt large volume medicine-chest, the tonic cycle is long; Simplify transmission, reduce movement parts quantity, the cancellation soft seal, non-maintaining for a long time; Without the electric power input, self-service dosing, safety is without stealing electricity.
Claims (6)
1. self-service chemicals dosing plant of well head, comprise medicine-chest (1) and quantitative plunger pump (2), it is characterized in that: loam cake and drain pipe (3) are arranged on the medicine-chest (1), drain pipe (3) is connected with well head, medicine-chest has medicament in (1), quantitative plunger pump (2) is fixed in the medicine-chest (1) lower, the inlet of quantitative plunger pump (2) is connected with medicine-chest (1), the liquid outlet of quantitative plunger pump (2) is connected with drain pipe (3) by one way valve (4), the outer chain connection of quantitative plunger pump (2) has had depression bar (5), play the plunger upper end chain connection of depression bar (5) one ends and quantitative plunger pump (2), play depression bar (5) other end and be connected with walking beam on pumping units.
2. the self-service chemicals dosing plant of well head according to claim 1, it is characterized in that: be connected chemical feeding quantity adjusting screw(rod) (6) with hinged depression bar (5) one ends in plunger upper end of quantitative plunger pump (2), chemical feeding quantity adjusting screw(rod) (6) lower end contacts with quantitative plunger pump (2) upper surface.
3. the self-service chemicals dosing plant of well head according to claim 2 is characterized in that: play depression bar (5) other end and be connected with walking beam on pumping units by rope chain (7), rope chain (7) adjustable in length.
4. the self-service chemicals dosing plant of well head according to claim 3 is characterized in that: locking cap (8) is arranged on the chemical feeding quantity adjusting screw(rod) (6).
5. the self-service chemicals dosing plant of well head according to claim 4, it is characterized in that: medicine-chest (1) places in the theft-proof box.
6. the self-service chemicals dosing plant of well head according to claim 5 is characterized in that: rope chain (7) is connected to the seal bar two ends, and seal bar places in the sealing shroud, and sealing shroud is fixed on medicine-chest (1) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104033556A CN102913195A (en) | 2012-10-13 | 2012-10-13 | Wellhead self-help dosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104033556A CN102913195A (en) | 2012-10-13 | 2012-10-13 | Wellhead self-help dosing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913195A true CN102913195A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104033556A Pending CN102913195A (en) | 2012-10-13 | 2012-10-13 | Wellhead self-help dosing device |
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| Country | Link |
|---|---|
| CN (1) | CN102913195A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645474A1 (en) * | 1988-12-29 | 1991-04-30 | Институт Геологии И Геохимии Горючих Ископаемых Ан Усср | Wellhead burner |
| CN2364207Y (en) * | 1999-01-05 | 2000-02-16 | 程坤 | Chemical wax control drop feeding device |
| CN2553107Y (en) * | 2002-06-21 | 2003-05-28 | 天津大港油田科远石油技术有限责任公司 | Beam-pumping unit power-aid wellhead chemicals-feeder |
| CN201212379Y (en) * | 2008-04-09 | 2009-03-25 | 郝正平 | Novel drug feeder |
| CN201314224Y (en) * | 2008-12-23 | 2009-09-23 | 中国石油大学(北京) | Oil/water well continuous chemical dosing device |
| CN202810795U (en) * | 2012-10-13 | 2013-03-20 | 张钦程 | Self-help dosing device at wellhead |
-
2012
- 2012-10-13 CN CN2012104033556A patent/CN102913195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645474A1 (en) * | 1988-12-29 | 1991-04-30 | Институт Геологии И Геохимии Горючих Ископаемых Ан Усср | Wellhead burner |
| CN2364207Y (en) * | 1999-01-05 | 2000-02-16 | 程坤 | Chemical wax control drop feeding device |
| CN2553107Y (en) * | 2002-06-21 | 2003-05-28 | 天津大港油田科远石油技术有限责任公司 | Beam-pumping unit power-aid wellhead chemicals-feeder |
| CN201212379Y (en) * | 2008-04-09 | 2009-03-25 | 郝正平 | Novel drug feeder |
| CN201314224Y (en) * | 2008-12-23 | 2009-09-23 | 中国石油大学(北京) | Oil/water well continuous chemical dosing device |
| CN202810795U (en) * | 2012-10-13 | 2013-03-20 | 张钦程 | Self-help dosing device at wellhead |
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Application publication date: 20130206 |