CN201461973U - High-temperature and high-pressure resistant micro flow replenishing valve - Google Patents
High-temperature and high-pressure resistant micro flow replenishing valve Download PDFInfo
- Publication number
- CN201461973U CN201461973U CN2009201102609U CN200920110260U CN201461973U CN 201461973 U CN201461973 U CN 201461973U CN 2009201102609 U CN2009201102609 U CN 2009201102609U CN 200920110260 U CN200920110260 U CN 200920110260U CN 201461973 U CN201461973 U CN 201461973U
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- valve cylinder
- valve
- fixed
- jackscrew bar
- piston
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Abstract
The utility model relates to a high-temperature and high-pressure resistant micro flow replenishing valve, which is used for indoor simulation experiments of oilfield and gas field development. The utility model has the advantages that threads are arranged at the end of a valve cylinder, an end cover is fixed at one end of the valve cylinder through threads, and a cylindrical pressing cap is fixed at the center hole of the end cover through threads. A top screw rod penetrates through the center hole of the pressing cap. One end of the top screw rod is arranged in the valve cylinder. The end part of the top screw rod is connected with the end part of a piston. The other end of the top screw rod is arranged at the external end of the pressing cap. A rotating handle is fixed at the end part of the top screw rod. A rear cover is fixed at the other end of the valve cylinder through threads. A liquid outlet hole is arranged on the rear cover. The utility model has the advantages that the replenishing valve is flexible, the operation is easy, the installation is convenient, supporting devices such as pumps, containers and the like are not used, and the work efficiency is improved; the high-temperature and high-pressure resistance is high, the accuracy is high and the minimum replenished fluid volume is controlled as 0.005mL; and the capacity is 1mL to 2mL.
Description
Technical field
The utility model relates to the oil-gas field development simulating lab test, particularly improves oil recovery microscopic seepage experimental technique field, is a kind of micrometeor replenishment valve.
Background technique
At present, in the oil-gas field development experiment, working solution (oil sample, water sample and displacing agent) generally all is contained in the steel intermediate receptacle of heat resisting and pressure resisting, and volume is generally greater than 100mL.There is piston that pump displacement fluid and working solution are separated in the container, and provides displacement power by constant-flux pump.
Only need the small volume of fluid of annotating in the experiment process, because employ corollary equipments such as the container of big volume and constant-flux pump seem very heaviness and poor efficiency, and the laboratory data precision is relatively poor.For example: the corrosion-resistant protection container under the high-temperature and high-pressure conditions, its volume is less generally between 20～30mL.After the process of boosting, the useful space is reduced to and does not meet requirement of experiment, and under equal conditions need the supplement trace fluid this moment.When the measurement of rate of flow of tiny flow quantity, need use with the immiscible small slug of output liquid and isolate, as when measuring oil or water flow velocity, can isolate as slug with gas.Obviously the supporting driving device of larger container can't be finished the injection of small slug, thereby the general measure method all adopts the average accumulated liquid measure computational methods in the unit time, this method measuring accuracy instability.
The model utility content
The purpose of this utility model provides a kind of micrometeor replenishment valve of high temperature high voltage resistant, and rotatable handle promotes piston, can micro-fluid replacement.Can not only form and verify the micro fluid compensation process of high temperature high voltage resistant environment, improve the measuring accuracy of micro-fluid replacement flow velocity or flow, and can simplify experiment and measuring phase, improve conventional efficient.
The technical solution adopted in the utility model is: the micrometeor replenishment valve of high temperature high voltage resistant comprises handle, pressure cap, end cap, jackscrew bar, piston, valve cylinder, bonnet and seal ring.It is characterized in that: valve cylinder is cylindric, and there is screw thread at two ends, and a piston is arranged in the valve cylinder.The threaded one end of valve cylinder is fixed with end cap, is fixed with cylindrical pressure cap on the center hole screw thread of end cap, and the center hole of pressure cap has screw thread.The threaded jackscrew bar of outer wall is connected with pressure cap by screw thread, and the jackscrew bar passes the pressure cap center hole.Jackscrew bar one end is in valve cylinder, and the jackscrew boom end is connected with pistons end.Can make piston to-and-fro motion in valve cylinder during the rotation of jackscrew bar.The other end of jackscrew bar is fixed with rotatable handle in the outer end of pressure cap in the end of jackscrew bar.The other end screw thread at valve cylinder is fixed with bonnet, and liquid outlet opening is arranged on bonnet.
Piston is cylindrical, on the outer wall of piston annular groove is arranged, and seal ring is arranged in groove.
Valve cylinder is the steel cylinder, and the pitch of jackscrew bar is 0.15～0.25mm.The Fluid Volume that the precision of trace fluid replacement reaches 30 ° of liquid outlet openings outflows of jackscrew bar revolution is 0.005mL.
The micrometeor replenishment valve working procedure of high temperature high voltage resistant
To measure the instant flow velocity of output liquid in the displacement test is example, illustrates and utilizes high pressure resistant high temperature micro fluid replenishment valve to add the process of batching pig in a subtle way.
1. in the experiment preparatory stage high pressure resistant micro fluid replenishment valve is connected with flow process; If output liquid only is the profit two-phase, then get final product with gas in the replenishment valve;
2. when saturation water/oil, also make replenishment valve reach consistent with pressure in experimental model, the microcosmic speedometer;
3. in the displacement process, output liquid enters microtubule.At anhydrous productive life or late high water content period, oil phase or water are continuous state, if do not isolate slug, then can't measure flow velocity, utilize this moment replenishment valve to add a septulum from slug (gas), have then solved this problem.In Water-cut Period, oil, water are slug-wise and flow, and can directly measure, but measuring phase can't subjective be controlled.
The beneficial effects of the utility model: the micrometeor replenishment valve of the utility model high temperature high voltage resistant has the following advantages:
1. easy to operate flexibly, easy for installation, do not employ corollary equipments such as pump/container, improved working efficiency;
2. has the high temperature high voltage resistant characteristic, precision height, the controlled 0.005mL that is made as of fluid replacement minimum flow; Volume is 1～2mL.
3. volume is little, is easy to and gas accessory applied in any combination.
Description of drawings
Fig. 1 is the micrometeor replenishment valve structural profile schematic representation of the utility model high temperature high voltage resistant.
Wherein, 1. handle, 2. pressure cap, 3. end cap, 4. jackscrew bar, 5. piston, 6. valve cylinder, 7. bonnet, 8. liquid outlet opening, 9. seal ring.
Embodiment
Embodiment 1: with the internal diameter of a valve cylinder 6 is that the micrometeor replenishment valve of the high temperature high voltage resistant of 20mm is an example, and model utility is described in further detail.
Consult Fig. 1.The micrometeor replenishment valve of the utility model high temperature high voltage resistant comprises handle 1, pressure cap 2, end cap 3, jackscrew bar 4, piston 5, valve cylinder 6, bonnet 7 and seal ring 9.
Claims (3)
1. the micrometeor replenishment valve of a high temperature high voltage resistant, comprise handle (1), pressure cap (2), end cap (3), jackscrew bar (4), piston (5), valve cylinder (6) and bonnet (7), it is characterized in that: valve cylinder (6) is for cylindric, there is screw thread at two ends, a piston (5) is arranged in the valve cylinder (6), threaded one end at valve cylinder (6) is fixed with end cap (3), on the center hole screw thread of end cap (3), be fixed with cylindrical pressure cap (2), the center hole of pressure cap (2) has screw thread, the threaded jackscrew bar of outer wall (4) is connected with pressure cap (2) by screw thread, jackscrew bar (4) passes pressure cap (2) center hole, jackscrew bar (4) one ends are in valve cylinder (6), jackscrew bar (4) end is connected with piston (5) end, can make piston (5) to-and-fro motion in valve cylinder (6) during jackscrew bar (4) rotation, the other end of jackscrew bar (4) is fixed with rotatable handle (1) in the outer end of pressure cap (2) in the end of jackscrew bar (4), the other end screw thread at valve cylinder (6) is fixed with bonnet (7), and liquid outlet opening (8) is arranged on bonnet (7).
2. the micrometeor replenishment valve of high temperature high voltage resistant according to claim 1 is characterized in that: described piston (5) has annular groove for cylindrical on the outer wall of piston (5), seal ring (9) is arranged in groove.
3. the micrometeor replenishment valve of high temperature high voltage resistant according to claim 1, it is characterized in that: the pitch of jackscrew bar (4) is 0.15～0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201102609U CN201461973U (en) | 2009-07-22 | 2009-07-22 | High-temperature and high-pressure resistant micro flow replenishing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201102609U CN201461973U (en) | 2009-07-22 | 2009-07-22 | High-temperature and high-pressure resistant micro flow replenishing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461973U true CN201461973U (en) | 2010-05-12 |
Family
ID=42389326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201102609U Expired - Lifetime CN201461973U (en) | 2009-07-22 | 2009-07-22 | High-temperature and high-pressure resistant micro flow replenishing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461973U (en) |
-
2009
- 2009-07-22 CN CN2009201102609U patent/CN201461973U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |