CN108181440B - Experimental device for testing water quality index of reinjection water of large-scale underground water-sealed cave depot - Google Patents
Experimental device for testing water quality index of reinjection water of large-scale underground water-sealed cave depot Download PDFInfo
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- CN108181440B CN108181440B CN201711193130.1A CN201711193130A CN108181440B CN 108181440 B CN108181440 B CN 108181440B CN 201711193130 A CN201711193130 A CN 201711193130A CN 108181440 B CN108181440 B CN 108181440B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 239000011435 rock Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 16
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims 2
- 238000001764 infiltration Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- 239000004575 stone Substances 0.000 claims 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 7
- 239000010779 crude oil Substances 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000004154 testing of material Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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Abstract
The invention relates to a material testing device, in particular to an experimental device for testing the water quality index of reinjection water of a large underground water-sealed cave depot. The constant-pressure constant-speed liquid supply device comprises a constant-pressure constant-speed liquid supply device, a fluid seepage flow rate metering device, a rock mass seepage chamber and a pressure stability metering system, wherein the rock mass seepage chamber comprises a fluid input end, a chamber body and a fluid output end, the fluid input end is arranged at one end of the chamber body, the fluid output end is arranged at the other end of the chamber body, the output end of the constant-pressure constant-speed liquid supply device is connected with the input end, the fluid seepage flow rate metering device is arranged on the rock mass seepage chamber, and the pressure stability metering system. The invention has the beneficial effects that the influence rule of water quality index parameters on a water replenishing stabilizing system can be obtained through experiments by simulating the water curtain system of the large crude oil water-sealed cave depot, and each index of water quality is determined.
Description
Technical Field
The invention relates to a material testing device, in particular to an experimental device for testing the water quality index of reinjection water of a large underground water-sealed cave depot.
Background
With the rapid development of Chinese economy, the demand of petroleum is increasing. For China, the storage of petroleum strategic reserves plays an important role in ensuring the national safety and the sustainable development of national economy. The underground water-sealed cave depot has the advantages of safety, economy, high efficiency, large storage capacity and the like, so the underground water-sealed cave depot is greatly developed in recent decades and is widely applied to the national petroleum strategic reserve. The underground water-sealed cavern needs a large amount of stratum seepage water and manual water supplement to maintain the sealing property of the cavern to crude oil, and a large amount of water is produced in the open air, and the water is discharged everywhere to cause pollution and waste, so that produced water reinjection is mostly adopted, but whether the quality of reinjection water meets the reinjection requirement or not needs to be researched, and an experimental device and a testing method in the aspect are urgently needed.
In order to simulate a water curtain system of a large crude oil water-sealed cave depot, the influence on the rock permeability of the cave depot after the produced water is reinjected and the influence on a water supplementing stabilizing system of the cave depot are generally tested through a produced water reinjection seepage experiment, so that the influence rule of each index parameter of water quality on the water supplementing stabilizing system is obtained, and each index of the water quality is determined.
As disclosed in the Chinese patent application publication: CN 105866000A discloses a single crack rock seepage test device and method in 2016, 8, 17: the device comprises a water tank, a variable-frequency self-suction booster pump, a water storage tank, a digital display water pressure gauge, a detachable test piece loading sealed cavity, a water collector and a four-foot stand, wherein the water tank is connected with the variable-frequency self-suction booster pump through a guide pipe, the variable-frequency self-suction booster pump is connected with the water storage tank through a guide pipe, the water storage tank is arranged at the upper end of the four-foot stand, the lower end of the water storage tank is connected with the detachable test piece loading sealed cavity through a guide pipe, and; the digital display water pressure gauge is arranged at the upper end of the water storage tank.
The method can test the seepage characteristic variation trend of the fracture seepage under different water pressures, but cannot obtain the influence rule of the water quality index parameters on the water replenishing stabilizing system, and determine each index of the water quality.
Disclosure of Invention
The invention aims to provide a water curtain system capable of simulating a large crude oil water-sealed cave depot, which is an experimental device for testing the water quality index of the reinjection water of the large underground water-sealed cave depot by testing the influence of the reinjection water of the produced water on the rock permeability of the cave depot and the influence of water-replenishing stabilizing system of the cave depot to obtain the influence rule of water quality index parameters on the water-replenishing stabilizing system and determining each index of the water quality, and comprises a constant-pressure constant-speed liquid supply device, a fluid permeation flow rate metering device, a rock mass permeation flow cavity and a pressure stabilizing metering system, wherein the rock mass permeation flow cavity comprises a fluid input end, a cavity and a fluid output end, the fluid input end is arranged at one end of the cavity, the fluid output end is arranged at the other end of the cavity, the output end of the constant-pressure constant-speed liquid supply device is connected with the fluid input end, and the fluid permeation flow rate metering device, the pressure stabilization metering system is arranged on the rock mass seepage cavity. And (3) injecting the test liquid into the rock mass seepage cavity through the fluid input end by using the constant-pressure constant-speed liquid supply device for testing, and feeding data back to experimenters by using the fluid flow rate metering device and the pressure stability metering system to complete the characteristic record of each index of the water quality.
Preferably, the experimental device for testing the water quality index of the reinjection water of the large underground water-sealed cave depot further comprises a connecting device, the connecting device comprises an upper end connector, a lower end connector, a rubber ring, a sealing groove, a positioning block, a positioning groove and a locking device, the upper end connector is arranged on the fluid input end, the lower end connector is arranged on the output end of the constant-pressure constant-speed liquid supply device, the shape of the upper end surface of the upper end connector and the shape of the lower end surface of the lower end connector are matched with each other, the upper end surface of the upper end connector and the lower end surface of the lower end connector are both provided with a sealing groove, the rubber ring is arranged on the sealing groove, the positioning block is arranged on the lower end face of the lower end connector, the positioning groove is arranged on the upper end face of the upper end connector, the positioning block is matched with the positioning groove, and the locking device is arranged between the upper end connector and the lower end connector. The rubber ring and the sealing groove ensure the connection tightness, so that the pressure of the test liquid cannot generate large errors due to leakage, and the positioning block and the positioning groove can ensure that the upper end connector and the lower end connector can keep relative positions not to generate large deviation when being installed and after being installed.
Preferably, the outer diameter of the upper end connector is larger than the outer diameter of the lower end of the upper end connector, the outer diameter of the lower end connector is larger than the outer diameter of the upper end of the lower end connector, the locking device comprises an upper hoop, a lower hoop, an upper fastening plate, a lower fastening plate, a fastening bolt, a fastening nut and two or more fastening handles, the inner diameter of the upper hoop is smaller than the outer diameter of the upper end connector, the inner diameter of the lower hoop is smaller than the outer diameter of the lower end connector, the upper fastening plate is arranged on the upper hoop, the lower fastening plate is arranged on the lower hoop, the fastening bolt is a cylinder with a sphere at one end, the other end of the fastening bolt is provided with a fastening thread, the upper fastening plate is provided with an upper through hole matched with the fastening bolt, the lower end of the upper fastening plate is also provided with, the lower fastening plate is provided with a lower through hole matched with the other end of the fastening bolt, the fastening nut is matched with the other end of the fastening bolt, and one end of the fastening handle is hinged with the fastening nut. When the upper and lower end connectors need to be fastened, the upper and lower hoop rings are sleeved into the upper and lower end connectors, the fastening bolt is inserted into the upper through hole of the upper fastening plate, the other end of the fastening bolt penetrates through the lower through hole, and finally the fastening nut is screwed by using the fastening handle to finish the fastening work of the device.
As preferred, the experimental apparatus for testing the quality index of the reinjection water of the large-scale underground water-sealed cave depot further comprises a leakage early warning device, the leakage early warning device comprises a liquid inductor, a battery and a warning lamp, the liquid inductor is arranged on a sealed groove, the warning lamp is arranged on an upper end connector, the battery is arranged on the upper end connector, the liquid inductor is respectively connected with the warning lamp and the battery, and the warning lamp is connected with the battery. After liquid goes deep into the sealed recess, trigger the liquid inductor, the liquid inductor triggers the warning light and warns the weeping condition.
In summary, the invention has the following advantages: the constant-pressure constant-speed liquid supply device, the fluid seepage flow rate metering device, the rock mass seepage cavity and the pressure stability metering system complete the test and feedback of the characteristics of the tested liquid, the connection tightness is ensured by the rubber ring and the sealing groove, so that the tested liquid pressure cannot generate large errors due to leakage, and the positioning block and the positioning groove can ensure that the upper end connector and the lower end connector can keep relative positions during and after installation and do not generate large deviation.
Drawings
FIG. 1 is a schematic structural view of the present invention
FIG. 2 is a schematic view of the structure of the connecting device of the present invention
Illustration of the drawings: 1-constant-pressure constant-speed liquid supply device, 2-rock mass seepage cavity, 3-pressure stable metering system, 4-fluid seepage flow rate metering device, 5-lower end connector, 6-positioning block, 7-sealing groove, 8-positioning groove, 9-rubber ring, 10-lower hoop, 11-fastening nut, 12-fastening handle, 13-lower fastening plate, 14-fastening bolt, 15-upper fastening plate, 16-sphere, 17-upper hoop, 18-warning lamp, 19-battery and 20-liquid sensor.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1: as shown in figures 1 and 2, the experimental device for testing the quality index of the reinjection water of the large underground water-sealed cave depot comprises a constant-pressure constant-speed liquid supply device 1, a fluid seepage flow rate metering device 4, a rock mass seepage chamber 2 and a pressure stabilization metering system 3, wherein the rock mass seepage chamber comprises a fluid input end, a cavity and a fluid output end, the fluid input end is arranged at one end of the cavity, the fluid output end is arranged at the other end of the cavity, the output end of the constant-pressure constant-speed liquid supply device is connected with the fluid input end, the fluid seepage flow rate metering device is arranged on the rock mass seepage chamber, and the pressure stabilization metering system is arranged on the rock mass seepage chamber. This device still includes connecting device, connecting device includes the upper end connector, lower extreme connector 5, rubber circle 9, sealing groove 7, locating piece 6, positioning groove 8 and locking device, the upper end connector sets up on the fluid input, the lower extreme connector sets up on constant voltage constant speed supplies liquid device output, the terminal surface shape is mutually supported under upper end connector up end shape and the lower extreme connector, all be provided with sealing groove on upper end connector up end and the lower extreme connector down end, the rubber circle sets up on sealing groove, the locating piece sets up under the lower extreme connector on the terminal surface, positioning groove sets up on upper end connector up end, the locating piece is mutually supported with positioning groove, locking device sets up between upper end connector and lower extreme connector. The outer diameter of the upper end connector is larger than the outer diameter of the lower end of the upper end connector, the outer diameter of the lower end connector is larger than the outer diameter of the upper end of the lower end connector, the locking device comprises an upper hoop 17, a lower hoop 10, an upper fastening plate 15, a lower fastening plate 13, a fastening bolt 14, a fastening nut 11 and two or more fastening handles 12, the inner diameter of the upper hoop is smaller than the outer diameter of the upper end connector, the inner diameter of the lower hoop is smaller than the outer diameter of the lower end connector, the upper fastening plate is arranged on the upper hoop, the lower fastening plate is arranged on the lower hoop, the fastening bolt is a cylinder with a sphere 16 at one end, the other end of the fastening bolt is provided with a fastening thread, the upper fastening plate is provided with an upper through hole matched with the fastening bolt, the lower end of the upper fastening plate is, one end of the fastening handle is hinged with the fastening nut. The experimental device for testing the quality indexes of the reinjection water of the large underground water-sealed cave depot further comprises a leakage early warning device, wherein the leakage early warning device comprises a liquid inductor 20, a battery 19 and a warning lamp 18, the liquid inductor is arranged on the sealing groove, the warning lamp is arranged on the upper end connector, the battery is arranged on the upper end connector, the liquid inductor is respectively connected with the warning lamp and the battery, and the warning lamp is connected with the battery. And (3) injecting the test liquid into the rock mass seepage cavity through the fluid input end by using the constant-pressure constant-speed liquid supply device for testing, and feeding data back to experimenters by using the fluid flow rate metering device and the pressure stability metering system to complete the characteristic record of each index of the water quality. The rubber ring and the sealing groove ensure the connection tightness, so that the pressure of the test liquid cannot generate large errors due to leakage, and the positioning block and the positioning groove can ensure that the upper end connector and the lower end connector can keep relative positions not to generate large deviation when being installed and after being installed. When the upper and lower end connectors need to be fastened, the upper and lower hoop rings are sleeved into the upper and lower end connectors, the fastening bolt is inserted into the upper through hole of the upper fastening plate, the other end of the fastening bolt penetrates through the lower through hole, and finally the fastening nut is screwed by using the fastening handle to finish the fastening work of the device. After liquid goes deep into the sealed recess, trigger the liquid inductor, the liquid inductor triggers the warning light and warns the weeping condition.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (2)
1. The utility model provides an experimental apparatus for test large-scale secret water seal rock cavern reinjection water quality index, a serial communication port, including constant voltage constant speed liquid supply device, fluid infiltration velocity of flow metering device, rock mass seepage flow chamber and pressure stabilization measurement system, rock mass seepage flow chamber include fluid input end, cavity and fluid output end, fluid input end set up in cavity one end, fluid output end set up at the cavity other end, constant voltage constant speed liquid supply device output link to each other with fluid input end, fluid infiltration velocity of flow metering device set up on rock mass seepage flow chamber, pressure stabilization measurement system set up on rock mass seepage flow chamber, an experimental apparatus for test large-scale secret water seal rock cavern reinjection water quality index still include connecting device, connecting device include upper end connector, lower extreme connector, rubber circle, Sealing groove, locating block, positioning groove and locking device, the upper end connector is arranged on the fluid input end, the lower end connector is arranged on the output end of the constant-pressure constant-speed liquid supply device, the upper end surface shape of the upper end connector and the lower end surface shape of the lower end connector are matched with each other, the upper end surface of the upper end connector and the lower end surface of the lower end connector are both provided with the sealing groove, the rubber ring is arranged on the sealing groove, the locating block is arranged on the lower end surface of the lower end connector, the positioning groove is arranged on the upper end surface of the upper end connector, the locating block and the positioning groove are matched with each other, the locking device is arranged between the upper end connector and the lower end connector, the outer diameter of the upper end connector is larger than the outer diameter of the lower end of the upper end connector, and the outer diameter, the locking device comprises an upper hoop, a lower hoop, an upper fastening plate, a lower fastening plate, a fastening bolt, a fastening nut and two or more fastening handles, wherein the inner diameter of the upper hoop is smaller than the outer diameter of the upper end of an upper end connector, the inner diameter of the lower hoop is smaller than the outer diameter of the lower end of a lower end connector, the upper fastening plate is arranged on the upper hoop, the lower fastening plate is arranged on the lower hoop, the fastening bolt is a cylinder with a sphere at one end, the other end of the fastening bolt is provided with a fastening thread, the upper fastening plate is provided with an upper through hole matched with the fastening bolt, the lower end of the upper fastening plate is also provided with a limiting cavity matched with the sphere, the diameter of the sphere is larger than that of the fastening bolt, the lower fastening plate is provided with a lower through hole matched with the other end of the fastening bolt, and the fastening nut is matched with the other end of the fastening, one end of the fastening handle is hinged with the fastening nut.
2. The experimental device for testing the quality index of the reinjection water of the large underground water-sealed stone cave depot according to claim 1, characterized in that the experimental device for testing the quality index of the reinjection water of the large underground water-sealed stone cave depot further comprises a leakage early warning device, the leakage early warning device comprises a liquid sensor, a battery and a warning lamp, the liquid sensor is arranged on a sealing groove, the warning lamp is arranged on an upper end connector, the battery is arranged on the upper end connector, the liquid sensor is respectively connected with the warning lamp and the battery, and the warning lamp is connected with the battery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193130.1A CN108181440B (en) | 2017-11-24 | 2017-11-24 | Experimental device for testing water quality index of reinjection water of large-scale underground water-sealed cave depot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193130.1A CN108181440B (en) | 2017-11-24 | 2017-11-24 | Experimental device for testing water quality index of reinjection water of large-scale underground water-sealed cave depot |
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| CN108181440A CN108181440A (en) | 2018-06-19 |
| CN108181440B true CN108181440B (en) | 2020-06-23 |
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| CN109444018B (en) * | 2018-11-19 | 2021-01-05 | 浙江海洋大学 | Water quality index measuring method for reinjection water of water-sealed petroleum cavern |
| CN109374506A (en) * | 2018-11-29 | 2019-02-22 | 浙江海洋大学 | A kind of device of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201737784U (en) * | 2010-06-02 | 2011-02-09 | 中国石油天然气股份有限公司 | Oilfield injection water treatment and monitoring device |
| CN203502407U (en) * | 2013-10-18 | 2014-03-26 | 陕西正大环保科技有限公司 | Water quality detection device for oil-extracting reinjection water |
| CN105866000A (en) * | 2016-03-24 | 2016-08-17 | 辽宁工程技术大学 | Seepage testing apparatus and method for rock with single fracture |
| CN106908365A (en) * | 2017-01-23 | 2017-06-30 | 华北水利水电大学 | One kind is adopted dynamic circuit breaker and splits rock cranny dynamically closure seepage simulation experimental rig and method |
| CN107192653A (en) * | 2017-07-04 | 2017-09-22 | 福州大学 | The test device and test method of underground water seal cave depot rock mass water sealing condition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10274411B2 (en) * | 2014-04-14 | 2019-04-30 | Schlumberger Technology Corporation | Methods for measurement of ultra-low permeability and porosity |
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- 2017-11-24 CN CN201711193130.1A patent/CN108181440B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201737784U (en) * | 2010-06-02 | 2011-02-09 | 中国石油天然气股份有限公司 | Oilfield injection water treatment and monitoring device |
| CN203502407U (en) * | 2013-10-18 | 2014-03-26 | 陕西正大环保科技有限公司 | Water quality detection device for oil-extracting reinjection water |
| CN105866000A (en) * | 2016-03-24 | 2016-08-17 | 辽宁工程技术大学 | Seepage testing apparatus and method for rock with single fracture |
| CN106908365A (en) * | 2017-01-23 | 2017-06-30 | 华北水利水电大学 | One kind is adopted dynamic circuit breaker and splits rock cranny dynamically closure seepage simulation experimental rig and method |
| CN107192653A (en) * | 2017-07-04 | 2017-09-22 | 福州大学 | The test device and test method of underground water seal cave depot rock mass water sealing condition |
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