CN116946903B - Monitoring equipment for long-term monitoring of water body in geological storage observation well - Google Patents
Monitoring equipment for long-term monitoring of water body in geological storage observation well Download PDFInfo
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- CN116946903B CN116946903B CN202311188421.7A CN202311188421A CN116946903B CN 116946903 B CN116946903 B CN 116946903B CN 202311188421 A CN202311188421 A CN 202311188421A CN 116946903 B CN116946903 B CN 116946903B
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- water pump
- liquid level
- wellhead
- level meter
- deep water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 230000007774 longterm Effects 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims description 57
- 238000005192 partition Methods 0.000 claims description 46
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/485—Control devices automatic electrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The invention relates to monitoring equipment for long-term monitoring of water in a geological storage observation well, which comprises at least four winches, a liquid level meter, a deep water pump and an overground positioning group, wherein the winches are all arranged on the overground, the liquid level meter winches control the lifting of the liquid level meter in the observation well through a rope, and the water pump winches control the lifting of the deep water pump through the rope; the water pipe winch is connected with a water outlet of the deep water pump through a water pipe and is used for outputting samples from the deep water pump, and the cable winch is connected with the deep water pump through a cable; the water pump winch, the water pipe winch and the cable winch respectively control the deep water pump, the water pipe and the cable to lift at the same speed; the above-ground positioning group comprises at least four fixed pulleys arranged at the wellhead of the observation well, the fixed pulleys are uniformly arranged along the circumferential direction of the wellhead, and the four fixed pulleys respectively correspond to four windlass, so that ropes of a liquid level meter, ropes of a deep water pump, cables and water pipes enter and exit the observation well from different positions of the wellhead, and mutual winding of the ropes, the cables and the water pipes is avoided.
Description
Technical Field
The invention belongs to the technical field of geological storage water quality monitoring, and particularly relates to monitoring equipment for long-term monitoring of water bodies in geological storage observation wells.
Background
The deep geological sequestration technology refers to the treatment technology of deep wells to sequester gas/liquid fluids into subsurface rock pores at depths of 1500-3500 meters below the earth's surface. And placing the gas/liquid fluid in a fourth type of environment medium (deep geological environment) outside the biosphere to perform the functions of sealing, degradation and the like, so that the sealed fluid does not participate in the material circulation of human beings and organisms. In order to analyze the migration and transformation process of the sealed gas/liquid in the deep stratum and to check the sealing effect, an observation well is reserved, and a monitoring device and a sample collecting device are arranged in the observation well. However, because the depth of the observation well is deeper, the simultaneous placement of multiple groups of monitoring equipment into the well is extremely easy to cause the winding of underground equipment lines and pipelines, and the pipeline is influenced to transmit samples to the ground; and for equipment used for long-term monitoring, the equipment is required to be lifted back to the ground for maintenance at regular intervals and then put back into an observation well, and if a line in the well is wound, the equipment cannot be lifted easily, so that the equipment becomes one-time or short-term monitoring equipment, and the normal operation of the equipment is seriously affected.
Disclosure of Invention
Aiming at the problems, the invention provides monitoring equipment for long-term monitoring of a water body in a geological sealing observation well, which comprises at least four windlass, a liquid level meter, a deep water pump and an overground positioning group, wherein the windlass is arranged on the overground, the liquid level meter windlass is connected through a rope and controls the lifting of the liquid level meter in the observation well, and the water pump windlass is connected through the rope and controls the lifting of the deep water pump in the observation well;
the cable winch is connected with the deep water pump through a cable and is used for powering on the deep water pump; the water pump winch, the water pipe winch and the cable winch respectively control the deep water pump, the water pipe and the cable to lift at the same speed;
the above-ground positioning group comprises at least four fixed pulleys arranged at the wellhead of the observation well, the fixed pulleys are uniformly arranged along the circumferential direction of the wellhead, and the four fixed pulleys respectively correspond to four windlass, so that ropes of a liquid level meter, ropes of a deep water pump, cables and water pipes enter and exit the observation well from different positions of the wellhead, and mutual winding of the ropes, the cables and the water pipes is avoided.
Optionally, a rectangular platform is arranged on the outer side of a wellhead of the observation well, the wellhead is positioned below the platform, two ends of the platform are respectively provided with one winch, and two other winches are respectively and correspondingly arranged below the two ends of the platform;
an auxiliary wellhead is arranged at a position of the table top of the platform, which corresponds to the wellhead below, and the auxiliary wellhead is arranged concentrically with the wellhead, and two windlass on the platform unreel/wind through the auxiliary wellhead and the wellhead;
the connecting line between the two windlass below the platform passes through the two first fixed pulleys and the center of the well mouth, and the two windlass below the platform correspondingly uses the two fixed pulleys on the connecting line; the connecting line between the two second fixed pulleys of the wellhead is perpendicular to the connecting line between the two first fixed pulleys.
Optionally, the diameter of the auxiliary wellhead is larger than that of the wellhead, two third fixed pulleys are arranged at the edge of the auxiliary wellhead corresponding to the two second fixed pulleys, and the connecting line between the two third fixed pulleys is perpendicular to the connecting line between the two windlass on the platform;
a fourth fixed pulley is arranged between the winch on the platform and the corresponding third fixed pulley, the rotating shafts of the first fixed pulley, the second fixed pulley and the third fixed pulley are all parallel to the ground, and the rotating shaft of the fourth fixed pulley is vertical to the ground, namely the fourth fixed pulley is horizontally arranged; ropes or water pipes or cables released by the windlass on the platform change the transmission direction after passing through the fourth fixed pulleys, enter the auxiliary wellhead through the corresponding third fixed pulleys, and enter the wellhead through the second fixed pulleys downwards, so that the positions of the two windlasses on the platform and the two windlasses below the platform entering the wellhead form a cross shape, and the ropes, the water pipes and the cables are effectively prevented from being intertwined on the upper part of the observation well.
Optionally, a dividing wall is arranged in the observation well, the dividing wall is close to the wall of the observation well corresponding to the first fixed pulley of the liquid level meter winch, two ends of the dividing wall are fixed on the wall of the well and are used for dividing the space in the well into two parts, a liquid level meter and a deep water pump are respectively placed, and one side of the dividing wall facing the liquid level meter is the inner side;
the partition wall comprises a plurality of inclined partition nets from top to bottom, a section of empty space is reserved between two adjacent partition nets from top to bottom, the height of the empty space is equal to that of the partition net, and the partition wall can reduce the cost of the partition wall and play a role in partition.
Further alternatively, the tops of all the separation nets are on the same vertical plane, and the lower parts of the separation nets are inclined at an angle of 10-30 degrees to the space direction in which the deepwater pump is located.
Optionally, a first deviation rectifying part is arranged at the bottom of the liquid level meter, a second deviation rectifying part is arranged at the top of the liquid level meter, the first deviation rectifying part comprises a plurality of outward expansion first grabbing rods, and the top ends of the first grabbing rods are connected with the bottom of the liquid level meter;
the second deviation correcting part comprises a plurality of second grabbing rods which are expanded outwards and then converged inwards, the bottom ends of the second grabbing rods are connected with the top of the liquid level meter, and the top ends of the second grabbing rods are positioned right above the liquid level meter; the first grabbing rod and the second grabbing rod are uniformly arranged around the circumference of the liquid level meter, and the first deviation correcting part and the second deviation correcting part are centered on the liquid level meter.
Optionally, the top of the deep water pump is provided with a first limiting part, the first limiting part comprises a telescopic rod and a first bracket, the bottom end of the telescopic rod is detachably connected with the top of the deep water pump, and the top end of the telescopic rod is connected with the center of the first bracket, so that the telescopic rod stretches along with the descent of the deep water pump, and the first bracket is ensured to be unnecessary to move within a certain height range;
the first bracket comprises four first separation rods which separate cables, water pipes and ropes connected with the deep water pump.
Further optionally, the starting end of the first separation rod is connected with the center of the first support, the tail end of the first separation rod points to and approaches to the well wall of the observation well, the tail end of the first separation rod is provided with a first telescopic wall foot, a first hydraulic device is arranged in the first telescopic wall foot and controls the first telescopic wall foot to extend out of the length of the first separation rod, when the first telescopic wall foot supports against the well wall, a water pipe, a cable and a rope of the deep water pump are absolutely separated, and when the first telescopic wall foot retracts towards the inside of the well, the first support can move towards the deep water pump under the driving of the telescopic rod.
Optionally, a second limiting part is arranged at the bottom of the deep water pump, the second limiting part comprises a fixed vertical rod and a second bracket, the top end of the fixed vertical rod is detachably connected with the bottom of the deep water pump, and the bottom end of the fixed vertical rod is connected with the center of the second bracket;
the second bracket comprises four second separation rods which separate cables, water pipes and ropes connected with the deep water pump.
Further optionally, the start end of the second partition rod is connected with the center of the second support, the tail end of the second partition rod points to and approaches to the well wall of the observation well, a second telescopic wall foot is arranged at the tail end of the second partition rod, a second hydraulic device is arranged in the second telescopic wall foot, the second hydraulic device controls the length of the second telescopic wall foot extending out of the second partition rod, and when the second telescopic wall foot extends out of the second partition rod and reaches the maximum length, only a small gap, for example, 1 cm to 5cm, is reserved between the second telescopic wall foot and the inner wall of the well.
Drawings
FIG. 1 is a schematic diagram of the structure of the monitoring device at the wellhead;
FIG. 2 is a schematic view of a level gauge and a deepwater pump within an observation well;
FIG. 3 is a schematic diagram of a first deviation rectifying portion and a second deviation rectifying portion of the hydraulic gauge;
FIG. 4 is a schematic view (one) of a first limit portion and a second limit portion of a deep water pump;
fig. 5 is a schematic diagram (two) of a first limit portion and a second limit portion of the deep water pump.
In the drawings, a 1-liquid level meter, a 2-deep water pump, a 3-observation well, a 4-liquid level meter winch, a 5-water pump winch, a 6-water pipe winch, a 7-cable winch, an 8-water pipe, a 9-cable, a 10-platform, an 11-auxiliary wellhead, a 12-wellhead, a 13-first fixed pulley, a 14-second fixed pulley, a 15-third fixed pulley, a 16-fourth fixed pulley, a 17-separation net, an 18-empty space, a 19-first deviation rectifying part, a 20-second deviation rectifying part, a 21-first grabbing rod, a 22-second grabbing rod, a 23-expansion section, a 24-convergence section, a 25-circular arc hook, a 26-expansion rod, a 27-first separation rod, a 28-first expansion wall leg, a 29-fixed vertical rod, a 30-second separation rod and a 31-second expansion wall leg.
Detailed Description
The embodiment provides monitoring equipment for long-term monitoring of water in a geological sealed observation well, which comprises at least four winches, a liquid level meter 1, a deep water pump 2 and an overground positioning group, wherein the winches are all arranged on the overground, the liquid level meter winches 4 are connected through ropes and control the lifting of the liquid level meter 1 in the observation well 3, and the water pump winches 5 are connected through ropes and control the lifting of the deep water pump 2 in the observation well 3;
the water pipe winch 6 is connected with a water outlet of the deep water pump 2 through a water pipe 8 and is used for outputting a sample by the deep water pump 2, and the cable winch 7 is connected with the deep water pump 2 through a cable 9 and is used for powering on the deep water pump 2; the water pump winch 5, the water pipe winch 6 and the cable winch 7 respectively control the deep water pump 2, the water pipe 8 and the cable 9 to lift at the same speed;
the above-ground positioning group comprises at least four fixed pulleys arranged at the wellhead 12 of the observation well, the fixed pulleys are uniformly arranged along the circumferential direction of the wellhead 12, and the four fixed pulleys respectively correspond to four windlass, so that the rope of the liquid level meter 1, the rope of the deepwater pump 2, the cable 9 and the water pipe 8 enter and exit the observation well 3 from different positions of the wellhead 12, and the mutual winding of the rope, the cable 9 and the water pipe is avoided.
Optionally, the four winches are on the same horizontal plane and are uniformly arranged along the circumferential direction of the wellhead 12, namely, the four winches are respectively positioned in the east, south, west and north directions of the wellhead 12, the four winches respectively correspond to the four fixed pulleys, and the rope, the cable 9 and the water pipe 8 are put into the observation well 3 after passing through the corresponding fixed pulleys. For example, the rope passes through the fixed pulley and then enters the observation well 3 after the corresponding rope is unreeled by the liquid level meter winch 4.
If the space at the wellhead of the observation well is relatively large, four winches can be arranged into the cross shape, if the space at the wellhead 12 is limited, the following straight shape can be adopted, specifically, a rectangular platform 10 is arranged at the outer side of the wellhead 12 of the observation well, the wellhead 12 is positioned below the platform 10, two winches are respectively arranged at two ends of the platform 10, and two other winches are respectively correspondingly arranged below two ends of the platform 10;
an auxiliary wellhead 11 is arranged at the position of the table top of the platform 10 corresponding to the lower wellhead 12, the auxiliary wellhead 11 and the wellhead 12 are concentrically arranged, and two windlass on the platform 10 unreel/wind through the auxiliary wellhead 11 and the wellhead 12;
the connecting line between the two windlass below the platform 10 passes through the centers of the two first fixed pulleys 13 and the wellhead 12, and the two windlass below the platform 10 correspondingly uses the two fixed pulleys on the connecting line; the line between the two second fixed pulleys 14 of the wellhead 12 is perpendicular to the line between the two first fixed pulleys 13.
Optionally, the diameter of the auxiliary wellhead 11 is larger than that of the wellhead 12, two third fixed pulleys 15 are arranged at the edge of the auxiliary wellhead 11 corresponding to the two second fixed pulleys 14, and the connecting line between the two third fixed pulleys 15 is perpendicular to the connecting line between the two windlass on the platform 10;
a fourth fixed pulley 16 is arranged between the winch on the platform 10 and the corresponding third fixed pulley 15, the rotating shafts of the first fixed pulley 13, the second fixed pulley 14 and the third fixed pulley 15 are all parallel to the ground, and the rotating shaft of the fourth fixed pulley 16 is vertical to the ground, namely the fourth fixed pulley 16 is horizontally arranged; ropes or water pipes 8 or cables 9 released by the windlass on the platform 10 change the transmission direction after passing through the fourth fixed pulley 16, enter the auxiliary wellhead 11 through the corresponding third fixed pulley 15, and enter the wellhead 12 downwards through the second fixed pulley 14, so that the positions of the two windlass on the platform 10 and the two windlass below the platform 10 entering the wellhead 12 form a cross shape, and the ropes, the water pipes 8 and the cables 9 are effectively prevented from being mutually wound on the upper part of the observation well 3.
Optionally, the ground of the observation well 3 is also provided with a frequency converter, an electric box and a water level control box, the frequency converter and the electric box are connected with the deep water pump 2 through a cable 9 to control the deep water pump 2 to work, and the liquid sealed at the bottom of the observation well 3 is pumped out along a water pipe 8 and is returned to the ground for detection;
the water level control box is in communication connection with the liquid level meter 1 and receives and analyzes detection information of the liquid level meter 1, when the liquid level in the observation well 3 is higher than a preset liquid level, the liquid level meter 1 and the deep water pump 2 are immersed by sealing liquid, the salinity of the sealing liquid is high, certain corrosiveness is achieved, and at the moment, four windlass are required to be winded to lift the liquid level meter 1 and the deep water pump 2; in addition, when the level gauge 1 and the deep water pump 2 need to be overhauled and maintained, the level gauge 1 and the deep water pump 2 also need to be lifted to the ground.
Optionally, a dividing wall is arranged in the observation well 3, the dividing wall is close to the wall of the observation well 3 corresponding to the first fixed pulley 13 of the liquid level meter winch 4, two ends of the dividing wall are fixed on the wall of the well and are used for dividing the space in the well into two parts, the liquid level meter 1 and the deep water pump 2 are respectively placed, one side of the dividing wall facing the liquid level meter 1 is the inner side, and the rope of the liquid level meter 1 is prevented from being wound with other ropes, the water pipe 8 and the cable 9;
the partition wall comprises a plurality of inclined partition nets 17 from top to bottom, a section of empty space 18 is reserved between two adjacent partition nets 17 from top to bottom, the height of the empty space 18 is equal to the height of the partition net 17, and the partition wall can reduce the cost of the partition wall and play a role in partition.
Further alternatively, the tops of all the separation nets 17 are on the same vertical plane, and the lower part of the separation net 17 is inclined at an angle of 10-30 ° to the spatial direction in which the deepwater pump 2 is located. The inclination angles of all the separation nets 17 are the same.
Optionally, the bottom of the liquid level meter 1 is provided with a first deviation rectifying part 19, the top is provided with a second deviation rectifying part 20, the first deviation rectifying part 19 comprises a plurality of first grab bars 21 which expand outwards, and the top ends of the first grab bars 21 are connected with the bottom of the liquid level meter 1;
the second deviation correcting part 20 comprises a plurality of second grabbing rods 22 which are expanded outwards and then converged inwards, the bottom ends of the second grabbing rods 22 are connected with the top of the liquid level meter 1, and the top ends of the second grabbing rods 22 are positioned right above the liquid level meter 1; the first grabbing rod 21 and the second grabbing rod 22 are uniformly arranged around the circumference of the liquid level meter 1, and the first deviation rectifying part 19 and the second deviation rectifying part 20 take the liquid level meter 1 as the center of a circle.
For example, the first grab bar 21 includes an upper inclined section inclined to the outside direction of the gauge 1 and a lower vertical section making the lower portion of the first deviation rectifying portion 19 have a fixed inner diameter. The second grab bar 22 comprises a lower expansion section 23 and an upper convergence section 24, the expansion section 23 and the convergence section 24 are both straight lines, the expansion section 23 inclines towards the outer side direction of the liquid level meter 1, the convergence section 24 inclines towards the inner side direction of the liquid level meter 1, a convex arc inflection point is formed at the joint of the expansion section 23 and the convergence section 24, the top of the convergence section 24 is provided with an arc hook 25 bent towards the center direction of the liquid level meter 1, and the opening of the arc hook 25 is downward.
Since the separation net 17 is spaced apart, the gauge 1 may slip from the empty space 18 into the space where the deepwater pump 2 is located during lowering, resulting in entanglement of the pipeline. The present invention designs a first deviation rectifying part 19 and a second deviation rectifying part 20 in order to prevent the liquid level meter 1 from sliding out of the empty space 18 during the ascending and descending processes. Specifically, if the liquid level meter 1 slides out from between the two separation nets 17 due to outward swing during the descending process of the liquid level meter 1, the liquid level meter 1 slides down along the separation net 17 inclined outwards when continuing to descend, and the liquid level meter 1 cannot be completely separated from the separation net 17, because a section of rope is always positioned on the inner side of the separation wall above the liquid level meter 1, the swing amplitude of the liquid level meter 1 cannot be maintained at a large angle; the first grab bar 21 of the first deviation correcting portion 19 expands outwards and is inserted into the mesh of the separation net 17 when descending, so that the first deviation correcting portion 19 is clamped on the separation net 17, the liquid level meter 1 cannot continuously descend, the liquid level meter winch 4 can detect the momentary loss of the load of the liquid level meter 1, at the moment, the liquid level meter winch 4 is controlled to reversely rotate (namely, wind up), the liquid level meter 1 is lifted, the first grab bar 21 is pulled out, the second grab bar 22 is converged and cannot be inserted into the mesh, the liquid level meter 1 ascends along the inclined separation net 17, the separation net 17 has a certain lifting effect, the liquid level meter winch 4 cannot detect the complete weight of the liquid level meter 1, wind up continues, when the liquid level meter 1 ascends to the blank space 18, the liquid level meter 1 is not limited by the separation net 17, the liquid level meter 1 returns to the inner side of the separation wall, the liquid level meter winch 4 detects the complete weight of the liquid level meter 1, and the liquid level meter 1 starts to be unreeled and descends.
When the liquid level meter 1 rises, the first deviation rectifying part 19 does not act, and is not inserted into a mesh to prevent the liquid level meter 1 from rising, if the liquid level meter 1 collides with the inclined separation net 17 because of outward swinging, the inflection point of the second grab bar 22 firstly contacts with the separation net 17, and because the separation net 17 and the convergence section 24 are inclined, the inclination angle of the convergence section 24 is larger than that of the separation net 17, namely, the convergence section 24 is inclined towards the liquid level meter 1, the inclination angle is the angle formed by the convergence section 24 or the separation net 17 and a vertical surface, and the inflection point is smoothly transited on the inner side surface of the separation net 17, so that the liquid level meter 1 swings inwards and returns to a normal rail. When the liquid level meter 1 swings outwards and just swings out of the partition wall from the empty space 18, the rope continues to pull the liquid level meter 1 to ascend, and when the arc top of the arc hook 25 of the convergence section 24 contacts the bottom of the upper partition net 17, the second grabbing rod 22 slides across the partition net 17 under the pulling force of the rope, so that the second deviation rectifying part 20 is forced towards the inner side of the partition net 17, and the liquid level meter 1 is promoted to return to the inner side of the partition net 17. The first deviation rectifying part 19 and the second deviation rectifying part 20 enable the liquid level meter 1 to return to the inner side of the separation net 17 in the descending and ascending processes, and the contact winding of the liquid level meter with the deepwater pump 2, the rope, the water pipe 8 and the cable 9 is avoided.
Optionally, the top of the deep water pump 2 is provided with a first limiting part, the first limiting part comprises a telescopic rod 26 and a first bracket, the bottom end of the telescopic rod 26 is detachably connected with the top of the deep water pump 2, and the top end of the telescopic rod 26 is connected with the center of the first bracket, so that the telescopic rod 26 stretches along with the descent of the deep water pump 2, and the first bracket is ensured to be unnecessary to move within a certain height range;
the first bracket comprises four first separation rods 27, and the four first separation rods 27 separate the cable 9, the water pipe 8 and the rope connected with the deep water pump 2, for example, the first separation rods 27, the cable 9, the first separation rods 27, the water pipe 8, the first separation rods 27, the rope of the deep water pump 2 and the first separation rods 27 are sequentially arranged on the outer side of the separation wall along the clockwise direction of the cross section of the observation well 3, so that the cable 9, the water pipe 8 and the rope of the deep water pump 2 are separated and protected, and are guaranteed not to be wound.
Further alternatively, the start end of the first partition rod 27 is connected with the center of the first support, the tail end of the first partition rod points to and approaches the well wall of the observation well 3, the tail end of the first partition rod is provided with a first telescopic wall foot 28, a first hydraulic device is arranged in the first telescopic wall foot 28 and controls the length of the first telescopic wall foot 28 extending out of the first partition rod 27, when the first telescopic wall foot 28 abuts against the well wall, the water pipe 8, the cable 9 and the rope of the deep water pump 2 are absolutely separated, and when the first telescopic wall foot 28 retracts towards the inside of the well, the first support can move towards the deep water pump 2 under the driving of the telescopic rod 26.
Optionally, a second limiting part is arranged at the bottom of the deep water pump 2, the second limiting part comprises a fixed vertical rod 29 and a second bracket, the top end of the fixed vertical rod 29 is detachably connected with the bottom of the deep water pump 2, and the bottom end of the fixed vertical rod 29 is connected with the center of the second bracket;
the second bracket comprises four second separation rods 30, and the four second separation rods 30 separate the cable 9, the water pipe 8 and the rope connected with the deep water pump 2, for example, the second separation rods 30, the cable 9, the second separation rods 30, the water pipe 8, the second separation rods 30, the rope of the deep water pump 2 and the second separation rods 30 are sequentially arranged on the outer side of the separation wall along the clockwise direction of the cross section of the observation well 3, so that the cable 9, the water pipe 8 and the rope of the deep water pump 2 are separated and protected, and are guaranteed not to be wound.
Further alternatively, the start end of the second partition rod 30 is connected to the center of the second support, the tail end points to and approaches the wall of the observation well 3, the tail end is provided with a second telescopic wall foot 31, a second hydraulic device is arranged in the second telescopic wall foot 31, the second hydraulic device controls the length of the second telescopic wall foot 31 extending out of the second partition rod 30, and when the second telescopic wall foot 31 extends out of the second partition rod 30 and reaches the maximum length, only a small gap, for example, 1-5cm, is left between the second telescopic wall foot 31 and the inner wall of the well.
The first hydraulic device and the second hydraulic device are conventional hydraulic devices, are internally provided with a power supply and a motor, can be connected with a control device on the ground, and judge the depth of the deep water pump according to the winding/unwinding speed and time of the corresponding winding machine, so as to control the operation of the first limiting part and the second limiting part.
The invention separates and connects the cable 9, the water pipe 8 and the rope of the deep water pump 2 through the first bracket of the first limiting part. Specifically, the water pump winch 5, the water pipe winch 6 and the cable winch 7 set appropriate winding/unwinding speeds according to the diameters (i.e., thicknesses) of the media wound by themselves, so that the cable 9, the water pipe 8 and the ropes wind/unwind the deep water pump 2 at the same progress, and stable lifting of the deep water pump 2 is ensured. The fixed pulley design at the wellhead 12 ensures that the cable 9, the water pipe 8 and the rope of the deep water pump 2 in the upper part of the observation well 3 have little winding chance. But the observation well 3 is deeper (typically several kilometers), the deep water pump 2 mainly depends on a first limit part and a second limit part at the middle and lower part of the observation well 3, and the cable 9, the water pipe 8 and the rope are prevented from winding.
When the deep water pump 2 descends, when a certain depth is reached, the first telescopic wall feet 28 of the four first separation rods 27 of the first bracket stretch and prop against the inner wall of the well, the separation cable 9, the water pipe 8 and the ropes are separated, the telescopic rods 26 stretch, the deep water pump 2 continues to descend, the telescopic rods 26 do not need to apply force to the deep water pump 2, and only the position of the telescopic rods 26 need to be matched with the position movement of the deep water pump 2; when the length of the telescopic rod 26 is close to the limit length, the second telescopic wall feet 31 of the four second separation rods 30 of the second bracket are extended to the longest, the second telescopic wall feet 31 are close to the inner wall of the well, the diameters of the cable 9 and the water pipe 8 are larger, the cable cannot be out of a gap between the second telescopic wall feet 31 and the inner wall of the well, the probability that the rope is out of the gap is smaller, and the second limiting part limits the winding of the cable 9, the water pipe 8 and the rope in a shorter time for adjusting the length of the first limiting part; the second limiting part is retracted along with the descent of the deep water pump 2, the first telescopic wall foot 28 is retracted, the telescopic rod 26 is shortened and drives the first support to move downwards, when the telescopic rod 26 is shortened to the shortest time, the first telescopic wall foot 28 is extended and is propped against the well wall again, the telescopic rod 26 is extended along with the descent of the deep water pump 2 again, the second telescopic wall foot 31 is retracted (the phenomenon that the inner wall of the well is protruded to collide with the second support is avoided), and the second limiting part is always descended along with the deep water pump 2. The above actions are repeated until the water inlet of the deep water pump 2 is submerged below the liquid level sealed by the observation well 3, and the water inlet of the deep water pump 2 is lower than the second limiting part, so that the second limiting part is prevented from being immersed.
When the deep water pump 2 ascends, the telescopic rod 26 stretches to the longest in advance, then the four first telescopic wall feet 28 prop against the well wall, the second limiting part ascends along with the deep water pump 2, the telescopic rod 26 shortens along with the ascending of the deep water pump 2, and the telescopic rod 26 does not apply force to the deep water pump 2; when the telescopic rod 26 is shortened to the shortest, the first telescopic wall leg 28 is retracted, and the second telescopic wall leg 31 is extended; the telescopic rod 26 is extended to the longest again, the first telescopic wall foot 28 extends out and abuts against the well wall, and the second telescopic wall foot 31 retracts. The above-described actions are repeated until the deep water pump 2 is lifted to a position at or near the ground.
The water pump winch 5, the water pipe winch 6 and the cable winch 7 control corresponding mediums to retract/release the deep water pump 2 at the same speed, and the deep water pump 2 can continuously move in the ascending or descending process. The level gauge hoist 4 controls the elevation of the level gauge 1 individually. At first, the liquid level of the liquid sealed in the observation well 3 is known, namely the first-time descending depth of the deep water pump 2 and the liquid level meter 1 is known, the water inlet at the bottom of the deep water pump 2 is submerged under the liquid level of the observation well 3, the liquid level meter 1 floats on the liquid level, the liquid level is monitored in real time, when the liquid level rises to a preset liquid level, the deep water pump 2 and the liquid level meter 1 are immersed by the sealed liquid, in order to avoid corroding equipment, four windlass are wound, the liquid level meter 1 and the deep water pump 2 are lifted to the safe height, and monitoring is continued.
The observation well is a conventional observation well, after drilling, steel pipes are installed in sections to form the observation well, and the separation net is installed in the steel pipes when the steel pipes are on the ground. The separation net is made of steel with high strength, and the reinforcing ribs are additionally arranged, so that the integral strength of the separation net is improved, after the observation well is installed, the well is washed, and the separation net can be prevented from being impacted by the well washing.
Claims (6)
1. The monitoring equipment for long-term monitoring of the water body in the geological storage observation well is characterized by comprising at least four windlass, a liquid level meter, a deep water pump and an overground positioning group, wherein the windlass is arranged on the overground, the liquid level meter windlass is connected through a rope and controls the elevation of the liquid level meter in the observation well, and the water pump windlass is connected through the rope and controls the elevation of the deep water pump in the observation well;
the cable winch is connected with the deep water pump through a cable and is used for powering on the deep water pump; the water pump winch, the water pipe winch and the cable winch respectively control the deep water pump, the water pipe and the cable to lift at the same speed;
the ground positioning group comprises at least four fixed pulleys arranged at the wellhead of the observation well, the fixed pulleys are uniformly arranged along the circumferential direction of the wellhead, and the four fixed pulleys respectively correspond to four windlass, so that a rope of a liquid level meter, a rope of a deep water pump, a cable and a water pipe enter and exit the observation well from different positions of the wellhead, and the mutual winding of the rope, the cable and the water pipe is avoided;
a rectangular platform is arranged on the outer side of a wellhead of the observation well, the wellhead is positioned below the platform, two ends of the platform are respectively provided with a winch, and the lower parts of the two ends of the platform are respectively correspondingly provided with two other winches;
an auxiliary wellhead is arranged at a position of the table top of the platform, which corresponds to the wellhead below, and the auxiliary wellhead is arranged concentrically with the wellhead, and two windlass on the platform unreel/wind through the auxiliary wellhead and the wellhead;
the connecting line between the two windlass below the platform passes through the centers of the two first fixed pulleys and the wellhead; the connecting line between the two second fixed pulleys of the wellhead is perpendicular to the connecting line between the two first fixed pulleys;
the diameter of the auxiliary wellhead is larger than that of the wellhead, two third fixed pulleys are arranged at the edge of the auxiliary wellhead corresponding to the two second fixed pulleys, and the connecting line between the two third fixed pulleys is perpendicular to the connecting line between the two windlass on the platform;
a fourth fixed pulley is arranged between the winch on the platform and the corresponding third fixed pulley, the rotating shafts of the first fixed pulley, the second fixed pulley and the third fixed pulley are all parallel to the ground, the rotating shaft of the fourth fixed pulley is vertical to the ground, and the fourth fixed pulley is horizontally arranged;
ropes or water pipes or cables released by the windlass on the platform change the transmission direction after passing through the fourth fixed pulleys, enter the auxiliary wellhead through the corresponding third fixed pulleys, and enter the wellhead through the second fixed pulleys downwards, so that the positions of the two windlasses on the platform and the two windlasses below the platform entering the wellhead form a cross shape, and the ropes, the water pipes and the cables are effectively prevented from being intertwined at the upper part of the observation well;
the top of the deep water pump is provided with a first limiting part, the first limiting part comprises a telescopic rod and a first bracket, the bottom end of the telescopic rod is detachably connected with the top of the deep water pump, and the top end of the telescopic rod is connected with the center of the first bracket, so that the telescopic rod stretches along with the descent of the deep water pump, and the first bracket is ensured to be unnecessary to move within a certain height range;
the first bracket comprises four first separation rods which separate a cable, a water pipe and a rope connected with the deep water pump;
the bottom of the deepwater pump is provided with a second limiting part, the second limiting part comprises a fixed vertical rod and a second bracket, the top end of the fixed vertical rod is detachably connected with the bottom of the deepwater pump, and the bottom end of the fixed vertical rod is connected with the center of the second bracket;
the second bracket comprises four second separation rods which separate cables, water pipes and ropes connected with the deep water pump.
2. The monitoring device for long-term monitoring of water in a geological sealed observation well according to claim 1, wherein a dividing wall is arranged in the observation well, the dividing wall is close to the wall of the observation well corresponding to a fixed pulley of a liquid level meter winch, two ends of the dividing wall are fixed on the wall of the well and are used for dividing a space in the well into two parts, a liquid level meter and a deep water pump are respectively placed, and one side of the dividing wall facing the liquid level meter is the inner side;
the partition wall comprises a plurality of inclined partition nets from top to bottom, a section of empty space is reserved between two adjacent partition nets from top to bottom, the height of the empty space is equal to that of the partition net, and the partition wall can reduce the cost of the partition wall and play a role in partition.
3. The monitoring device for long term monitoring of a body of water in a geological storage observation well according to claim 2, wherein the tops of all the separation nets are on the same vertical plane, and the lower parts of the separation nets are inclined towards the spatial direction in which the deepwater pump is located.
4. The monitoring device for long-term monitoring of water in a geological storage observation well according to claim 3, wherein the bottom of the liquid level meter is provided with a first deviation rectifying part, the top of the liquid level meter is provided with a second deviation rectifying part, the first deviation rectifying part comprises a plurality of first grab bars which expand outwards, and the top ends of the first grab bars are connected with the bottom of the liquid level meter;
the second deviation correcting part comprises a plurality of second grabbing rods which are expanded outwards and then converged inwards, the bottom ends of the second grabbing rods are connected with the top of the liquid level meter, and the top ends of the second grabbing rods are positioned right above the liquid level meter; the first grabbing rod and the second grabbing rod are uniformly arranged around the circumference of the liquid level meter, and the first deviation correcting part and the second deviation correcting part are centered on the liquid level meter.
5. The monitoring device for long-term monitoring of a body of water in a geological storage observation well according to claim 4, wherein the starting end of the first partition rod is connected with the center of the first support, the tail end of the first partition rod points to and approaches to the well wall of the observation well, a first telescopic wall foot is arranged at the tail end of the first partition rod, a first hydraulic device is arranged in the first telescopic wall foot, and the first hydraulic device controls the length of the first telescopic wall foot extending out of the first partition rod;
when the first telescopic wall foot props against the well wall, the water pipe, the cable and the rope of the deep water pump are absolutely separated, and when the first telescopic wall foot retracts towards the inside of the well, the first bracket moves towards the deep water pump under the driving of the telescopic rod.
6. The monitoring device for long-term monitoring of a body of water in a geological storage observation well according to claim 5, wherein the start end of the second partition rod is connected with the center of the second support, the tail end of the second partition rod points to and approaches the well wall of the observation well, a second telescopic wall foot is arranged at the tail end of the second partition rod, a second hydraulic device is arranged in the second telescopic wall foot, and the second hydraulic device controls the length of the second telescopic wall foot extending out of the second partition rod.
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| CN202311188421.7A CN116946903B (en) | 2023-09-15 | 2023-09-15 | Monitoring equipment for long-term monitoring of water body in geological storage observation well |
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| CN202311188421.7A CN116946903B (en) | 2023-09-15 | 2023-09-15 | Monitoring equipment for long-term monitoring of water body in geological storage observation well |
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| CN116946903B true CN116946903B (en) | 2023-11-24 |
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| CN116946903A (en) | 2023-10-27 |
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