CN102564908A - Hanging drop control method and device for measuring oil-gas interface tension - Google Patents
Hanging drop control method and device for measuring oil-gas interface tension Download PDFInfo
- Publication number
- CN102564908A CN102564908A CN2012100216562A CN201210021656A CN102564908A CN 102564908 A CN102564908 A CN 102564908A CN 2012100216562 A CN2012100216562 A CN 2012100216562A CN 201210021656 A CN201210021656 A CN 201210021656A CN 102564908 A CN102564908 A CN 102564908A
- Authority
- CN
- China
- Prior art keywords
- drop
- pneumatic valve
- generating laser
- operated pneumatic
- hanging drop
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A hanging drop control method and a device for measuring oil-gas interfacial tension are disclosed, the device comprises: the device comprises an intermediate container, a pneumatic valve, a pneumatic controller, a check valve, a hanging dropper, a stepping motor, a bracket, a laser emitter and a computer; the middle container is used for storing a sample to be detected of the formation oil and is connected with the hanging dropper through a liquid drop pipeline; the pneumatic valve is arranged on the liquid drop pipeline between the intermediate container and the hanging drop pipe to control the liquid inlet of the liquid drop pipeline; the pneumatic controller is electrically connected with the pneumatic valve and is used for controlling the pneumatic valve; the check valve is connected to a liquid drop pipeline between the pneumatic valve and the hanging dropper and is used for preventing liquid in the hanging dropper from flowing back; the stepping motor and the laser emitter are arranged on the bracket, and the stepping motor is used for controlling the laser emitter to move in the vertical direction along the bracket under the drive of the computer; and the computer is electrically connected with the pneumatic controller, the stepping motor and the laser emitter respectively and is used for driving the pneumatic controller to control the opening or closing of the pneumatic valve.
Description
Technical field
The invention relates to oil and improve recovery ratio high pressure property experimental technique, about a kind of median surface tension force and the minimum miscible pressure measuring technology of oil gas, is hanging drop control method and the device that is used to measure oil gas interface tension force about a kind of concretely particularly.
Background technology
In recent years, along with CO
2The continuous development of miscible-phase displacement technology, the development of oil gas interface tonometry technology also receives much concern.Can accurately and apace obtain the oil gas interface tension value be the key that the petroleum science and technology worker solves many technology of reservoir sweep difficult problems.At present, the method for testing of oil gas interface tension value mainly adopts sessile drop method.Its test philosophy is at a terminal droplet drop that drips of hanging drop pipe vertically downward, to utilize the computer generated image technology to calculate the interfacial tension value then.Yet, in carrying out oil gas interface tension test process, find, along with the rising hanging drop of pressure reduces gradually; Hanging drop is little after to a certain degree at mouth of pipe place, and it is easier to come off, and the process that discharges drop is the manual control valve; Need repeatedly experiment experience, the high more more difficult control of pressure causes controlled valve repeatedly; Make the continuous enrichment of gas medium to be measured, give the experiment great errors.
Summary of the invention
The present invention provides a kind of hanging drop control method and device that is used to measure oil gas interface tension force, with the maximum sized hanging drop of automatic formation, solves the too small and caducous difficult problem of hanging drop under the high pressure.
To achieve these goals; The present invention provides a kind of hanging drop control device that is used to measure oil gas interface tension force, and this device comprises: intermediate receptacle, operated pneumatic valve, pneumatic controller, non-return valve, hanging drop pipe, stepper motor, support, generating laser and computing machine; Described intermediate receptacle is used to store the formation oil testing sample, and connects described hanging drop pipe through the drop pipeline; Described operated pneumatic valve is installed on the drop pipeline between said intermediate receptacle and the hanging drop pipe, is used to control described drop pipeline feed liquor; Described pneumatic controller is electrically connected described operated pneumatic valve, is used to control said operated pneumatic valve; Described non-return valve is connected on the drop pipeline between said operated pneumatic valve and the said hanging drop pipe, is used for preventing that the liquid of said hanging drop pipe from refluxing; Described stepper motor and generating laser are installed on the said support, and described stepper motor is used under the driving of said computing machine, controlling described generating laser and is moving along said support in the vertical direction; Described computing machine is electrically connected respectively with described pneumatic controller, stepper motor and generating laser, is used to drive said pneumatic controller and controls said operated pneumatic valve and open or close.
Further, this device also comprises: ram pump, be connected with described intermediate receptacle, and be used to described intermediate receptacle the power that injects drop is provided.
Further, this device also comprises: air compressor, be connected with described pneumatic controller, and be used to described pneumatic controller source of the gas is provided.
Further, this device also comprises: optical sensor, and place said generating laser inner,, the mouth of pipe of said hanging drop pipe is used for sending sensing signal when touching laser to described computing machine.
To achieve these goals, the present invention provides a kind of hanging drop control method that is used to measure oil gas interface tension force, and this method comprises: step a, control ram pump make the pressure of the formation oil of intermediate receptacle keep steady state; Step b through the step motor drive generating laser, makes the light beam of said generating laser be in predetermined altitude; Step c opens operated pneumatic valve drop is oozed from the hanging drop pipe; Steps d when said drop touches the light beam of said generating laser, is closed said operated pneumatic valve; Step e, close said operated pneumatic valve after, if said drop comes off in the given time, control said generating laser and move a setpoint distance from said predetermined altitude, repeating step c and steps d do not come off until drop in the given time.
Further, definite method of said predetermined altitude comprises: open said operated pneumatic valve, when drop is maximum, controls said generating laser the position of laser beam is flushed with the drop top, and close operated pneumatic valve.
Further, before said step a, this method also comprises: close described operated pneumatic valve.
Further, the described schedule time is 1 minute, described setpoint distance 0.1mm.
The beneficial effect of the embodiment of the invention is: with the maximum sized hanging drop of automatic formation, solved the too small and caducous difficult problem of hanging drop under the high pressure, improved measuring accuracy, got rid of personal error, shortened Measuring Time.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is used to measure the hanging drop control device structural representation of oil gas interface tension force for the embodiment of the invention;
Fig. 2 is used to measure the hanging drop control method process flow diagram of oil gas interface tension force for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is explained further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
As shown in Figure 1; Present embodiment provides a kind of hanging drop control device that is used to measure oil gas interface tension force, and this device comprises: intermediate receptacle 101, operated pneumatic valve 102, pneumatic controller 103, non-return valve 04, hanging drop pipe 105, stepper motor 106, support 107, generating laser 108 and computing machine 109.
Further; This hanging drop control device that is used to measure oil gas interface tension force also comprises: ram pump 110; It is connected with described intermediate receptacle 101, is used to described intermediate receptacle 101 power that injects drop is provided, and ram pump 110 is pressed onto testing pressure again with the formation oil of intermediate receptacle 101; And being set to pressure constant state, this testing pressure is decided according to the concrete operations situation that produces hanging drop.
Further, this hanging drop control device that is used to measure oil gas interface tension force also comprises: air compressor 113, be connected with described pneumatic controller 103, and be used to described pneumatic controller 103 source of the gas is provided.
Further; This hanging drop control device that is used to measure oil gas interface tension force also comprises: the optical sensor (not shown); Optical sensor places said generating laser 108 inside, is used for the sensor light signal, when the hanging drop of said hanging drop pipe 105 mouths of pipe touches laser beam; Optical sensor sends sensing signal to described computing machine 109, and computing machine 109 drives pneumatic controller 103 and cuts out operated pneumatic valve 102.
As shown in Figure 2, present embodiment provides a kind of hanging drop control method that is used to measure oil gas interface tension force, and this method comprises:
Step S201: control ram pump 110 makes the pressure of the formation oil of intermediate receptacle keep steady state.
Before step S201, except need the power connection of all devices among Fig. 1 also being closed operated pneumatic valve 102.
Ram pump 110 is pressed onto testing pressure again with the formation oil of intermediate receptacle 101, and is set to pressure constant state, and this testing pressure is decided according to the concrete operations situation that produces hanging drop.
Step S202:, make the light beam of said generating laser 108 be in predetermined altitude through the step motor drive generating laser.
Before step S202, at first need confirm above-mentioned predetermined altitude, definite method of this predetermined altitude is following:
At first, open said operated pneumatic valve, the mouth of pipe of hanging drop pipe 105 slowly forms hanging drop; Estimation hanging drop size when the estimation hanging drop is maximum, is controlled said generating laser 108; The position of laser beam is flushed with the drop top, write down this position (being the position 2 among Fig. 1) and close operated pneumatic valve.This moment, position 2 was for being definite predetermined altitude.In the control procedure of hanging drop, can be predetermined altitude later on this position 2, with the light beam regulation of generating laser 108 to position 2.
Step S203: open operated pneumatic valve 102 drop is oozed from the hanging drop pipe.
After accomplishing the position adjustments of generating laser 108, just can utilize computing machine 109 to drive pneumatic controller 103, open operated pneumatic valve 102.
Step S204: when said drop touches the light beam of said generating laser 108, close said operated pneumatic valve.After operated pneumatic valve 102 is opened; Under the expulsive force effect of ram pump 110, hanging drop pipe 105 mouthful will form drop gradually, when drop touches the light beam of said generating laser 108; The optical sensor of generating laser 108 will sense light signal; And give computing machine 109 with optical signal transmission, computing machine 109 drives pneumatic controllers 103, closes operated pneumatic valve 102.
Step S205: judge that drop comes off in the given time? If carry out step S206.
Step S206: after in step S204, closing operated pneumatic valve 102,, need control generating laser 108 2 to move a setpoint distance, repeating step S203 and step S204 from the position if said drop comes off in the given time.
The above-mentioned schedule time can be set according to the experiment situation, and the schedule time can be set at 1 minute.Setpoint distance also can be set according to the experiment situation; Can be 0.1mm such as setpoint distance; Need 2 move 0.1mm from the position this moment with generating laser 108; Open operated pneumatic valve 102 then drop is oozed from the hanging drop pipe, when said drop touches the light beam of said generating laser 108, close operated pneumatic valve 102 once more.If after this closed operated pneumatic valve 102, drop came off in the given time once more, move setpoint distance on also need generating laser 108 being continued, repeating step S203 and step S204 do not come off until drop in the given time then.
If said drop does not come off in the given time, can utilize this drop that obtains to carry out test experiments (the computer generated image technique computes interfacial tension value of utilizing of the prior art).
The beneficial effect of the embodiment of the invention is: with the maximum sized hanging drop of automatic formation, solved the too small and caducous difficult problem of hanging drop under the high pressure, improved measuring accuracy, got rid of personal error, shortened Measuring Time.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a hanging drop control device that is used to measure oil gas interface tension force is characterized in that described device comprises: intermediate receptacle, operated pneumatic valve, pneumatic controller, non-return valve, hanging drop pipe, stepper motor, support, generating laser and computing machine; Wherein
Described intermediate receptacle is used to store the formation oil testing sample, and connects described hanging drop pipe through the drop pipeline;
Described operated pneumatic valve is installed on the drop pipeline between said intermediate receptacle and the hanging drop pipe, is used to control described drop pipeline feed liquor;
Described pneumatic controller is electrically connected described operated pneumatic valve, is used to control said operated pneumatic valve;
Described non-return valve is connected on the drop pipeline between said operated pneumatic valve and the said hanging drop pipe, is used for preventing that the liquid of said hanging drop pipe from refluxing;
Described stepper motor and generating laser are installed on the said support, and described stepper motor is used under the driving of said computing machine, controlling described generating laser and is moving along said support in the vertical direction;
Described computing machine is electrically connected respectively with described pneumatic controller, stepper motor and generating laser, is used to drive said pneumatic controller and controls said operated pneumatic valve and open or close.
2. device according to claim 1 is characterized in that, described device also comprises: ram pump, be connected with described intermediate receptacle, and be used to described intermediate receptacle the power that injects drop is provided.
3. device according to claim 1 is characterized in that, described device also comprises: air compressor, be connected with described pneumatic controller, and be used to described pneumatic controller source of the gas is provided.
4. device according to claim 1 is characterized in that, described device also comprises: optical sensor, and place said generating laser inner,, the mouth of pipe of said hanging drop pipe is used for sending sensing signal when touching laser to described computing machine.
5. hanging drop control method that is used to measure oil gas interface tension force is characterized in that described method comprises:
Step a, control ram pump make the pressure of the formation oil of intermediate receptacle keep steady state;
Step b through the step motor drive generating laser, makes the light beam of said generating laser be in predetermined altitude;
Step c opens operated pneumatic valve drop is oozed from the hanging drop pipe;
Steps d when said drop touches the light beam of said generating laser, is closed said operated pneumatic valve;
Step e, close said operated pneumatic valve after, if said drop comes off in the given time, control said generating laser and move a setpoint distance from said predetermined altitude, repeating step c and steps d do not come off until drop in the given time.
6. method according to claim 5 is characterized in that, definite method of said predetermined altitude comprises:
Open said operated pneumatic valve, when drop is maximum, controls said generating laser the position of laser beam is flushed with the drop top, and close operated pneumatic valve.
7. method according to claim 5 is characterized in that, before said step a, described method also comprises: close described operated pneumatic valve.
8. method according to claim 5 is characterized in that, the described schedule time is 1 minute.
9. method according to claim 5 is characterized in that, described setpoint distance 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210021656.2A CN102564908B (en) | 2012-01-31 | 2012-01-31 | Hanging drop control method and device for measuring oil-gas interface tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210021656.2A CN102564908B (en) | 2012-01-31 | 2012-01-31 | Hanging drop control method and device for measuring oil-gas interface tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102564908A true CN102564908A (en) | 2012-07-11 |
| CN102564908B CN102564908B (en) | 2014-02-19 |
Family
ID=46410909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210021656.2A Active CN102564908B (en) | 2012-01-31 | 2012-01-31 | Hanging drop control method and device for measuring oil-gas interface tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564908B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106021778A (en) * | 2016-05-31 | 2016-10-12 | 中国海洋石油总公司 | Method for determining CO2 simulation displacement performance miscibility pressure |
| CN108693078A (en) * | 2018-04-09 | 2018-10-23 | 青岛科技大学 | It is a kind of to determine CO using interfacial phenomenon2The new method of miscible pressure of/oil-based system |
| CN110186815A (en) * | 2019-06-27 | 2019-08-30 | 西南石油大学 | The anti-phase transformation gas-liquid interface tension determining apparatus of high temperature and pressure and measuring method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5615276A (en) * | 1995-07-14 | 1997-03-25 | National Science Council | Method of measuring low interfacial tension by pendant drop digitization |
| CN202442937U (en) * | 2012-01-31 | 2012-09-19 | 中国石油天然气股份有限公司 | Hanging drop control device for measuring oil-gas interfacial tension |
-
2012
- 2012-01-31 CN CN201210021656.2A patent/CN102564908B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5615276A (en) * | 1995-07-14 | 1997-03-25 | National Science Council | Method of measuring low interfacial tension by pendant drop digitization |
| CN202442937U (en) * | 2012-01-31 | 2012-09-19 | 中国石油天然气股份有限公司 | Hanging drop control device for measuring oil-gas interfacial tension |
Non-Patent Citations (4)
| Title |
|---|
| 《energy procedia》 20091231 Stefan Bachu等 "dependence of CO2-brine interfacial tension on aquifer pressure，temperature and water salinity " 第3157-3164页 1-9 , * |
| 《石油学报》 20070531 彭宝仔等 "用界面张力法测定CO2与原油的最小混相压力" 第93-95页 1-9 第28卷, 第3期 * |
| STEFAN BACHU等: ""dependence of CO2-brine interfacial tension on aquifer pressure，temperature and water salinity "", 《ENERGY PROCEDIA》 * |
| 彭宝仔等: ""用界面张力法测定CO2与原油的最小混相压力"", 《石油学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106021778A (en) * | 2016-05-31 | 2016-10-12 | 中国海洋石油总公司 | Method for determining CO2 simulation displacement performance miscibility pressure |
| CN106021778B (en) * | 2016-05-31 | 2019-04-09 | 中国海洋石油集团有限公司 | A kind of simulation CO2The determination method of displacement dynamic miscible pressure |
| CN108693078A (en) * | 2018-04-09 | 2018-10-23 | 青岛科技大学 | It is a kind of to determine CO using interfacial phenomenon2The new method of miscible pressure of/oil-based system |
| CN108693078B (en) * | 2018-04-09 | 2020-10-16 | 青岛科技大学 | CO determination by using interface phenomenon2Novel method for one-time miscible pressure of oil phase system |
| CN110186815A (en) * | 2019-06-27 | 2019-08-30 | 西南石油大学 | The anti-phase transformation gas-liquid interface tension determining apparatus of high temperature and pressure and measuring method |
| CN110186815B (en) * | 2019-06-27 | 2024-02-23 | 西南石油大学 | High-temperature high-pressure phase-change-preventing gas-liquid interfacial tension measuring device and measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102564908B (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202442937U (en) | Hanging drop control device for measuring oil-gas interfacial tension | |
| CN102564908B (en) | Hanging drop control method and device for measuring oil-gas interface tension | |
| ATE406337T1 (en) | METHOD AND DEVICE FOR FILLING A CONTAINER WITH A PARTICULAR QUANTITY OF LIQUID AND CORRESPONDING FILLING MACHINE | |
| AU2018339848B2 (en) | System for testing rheological behavior of slurry | |
| CN105499080A (en) | Glue supplying system and glue supplying method | |
| CN207215518U (en) | A kind of Food Inspection sampler | |
| CN101221108A (en) | Rotating and bending corrosion fatigue testing device | |
| CN104329072A (en) | Fracturing fluid flowback control device and method | |
| CN103759918B (en) | The assay device of assessment bionic jet flow surface panel friction reduction effect and method | |
| CN202471376U (en) | Leakage detector for detection on plastic bottle | |
| US7963302B2 (en) | Machine for testing container capacity | |
| CN104089754B (en) | A kind of method and device catching bubbling polymerization process | |
| JP2007312977A (en) | Liquid preparation device | |
| JP5970788B2 (en) | Liquid filling method and apparatus | |
| RU2390744C1 (en) | Method for leakage testing articles | |
| CN108593190B (en) | Novel method for determining minimum miscible pressure of CO 2/oil phase system by utilizing oil phase hanging drop volume change | |
| CN204082126U (en) | A kind of visual experimental apparatus of simulation wellbore hole annulus multi phase flow | |
| CN104697769A (en) | Opening pressure gas measuring device and method for oil pump pressure limiting valve | |
| CN203711160U (en) | Large-volume floating tank | |
| CN109100485B (en) | A kind of micron capillary column gas-liquid dynamic phase interface test macro | |
| CN204141228U (en) | Hydraulic natural gas automobile secondary gas filling station oil return system | |
| CN108590599B (en) | Oil reservoir exploitation system, bubble diameter control experiment system and oil reservoir exploitation method | |
| US4448210A (en) | Apparatus and method for controlling the level of a liquid in a tank | |
| CN209745333U (en) | Automatically telescopic plug-in vortex shedding flowmeter | |
| CN203459053U (en) | Liquid dropwise adding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |