|Title of Invention||BOREWELL SCANNING SYSTEM FOR EXISTING OR NEWLY DRILLED BOREWELLS|
|Abstract||Scanning system for existing or newly drilled borewel is a very useful instrument to know the detail of the borewells to confirm whether the borewell works healthy or not.Without installing a motor to the borewell directly. Borewell scanning mainly containing monitor, control unit, cable, scanning unit. The signals received by the scanner with the help of the lamp in the borewell is converted into display signals on the monitor through the cable and the control unit. We can see the invisible details of borewell directly on the monitor.|
Background of invention: This invention relates to the scanning of existing or newly drilled borewells to study the fac-tors like which affects the performance of the borewell system ,like formation of borewell, casing lenth, casing condition, seating condition of casing in the borewell, dry gaps, present water level water gaps, silt, obstruction due to holders and depth of borewell without installig motor and pump directly for testing purpose.
so many experiments are conducted to carry out this invention successfully.
Abstract: The problem faced by the farmers to install the
submersible pump and motor for a particular depth for perment
source of water. In a newly drilled invisble borewell, we cannot
judge at what depth the water channels present and gives
permanent source of water.
Previously the farmers fix up the motor and pump
approximately by trail and error for better results, it is a very time consuming task and even though borewell cannot work properly. To over come thease problems I directed to see the structure of earth crest directly by means of scanning technical. Were we can see the entire structure and function of borewell.
The scanning system for existing or newly dried borewell is very useful instrument to note details of borewell to confirm whether the borewell works healthy or not without install
king a motor and pump to the borewell directly for testing, the borewell scanning equipment mainly containg monitor, control unit, scanning unit. The signal revived by the scanner with the help of illumination of lamp or bulb in the borewell is converted in to display signals on the monitor through cable and control unit, where we can see the invisible details of the borewell directly on the monitor, by confirming the condition of borewell suggested to install the pump and motor. The invention is successfully working, number of borewells are scanned so fonscanning equipment suitable to scan 4, 6,8, 10,12 inches bore wish receptivity.
objective of invention: The borewell scanning system will aim at the following points.
1. To solve the scarcity due to nonavailablity of surface water and resources at deep level.
2. Borewell scanning system saves the cost of farmers and there by giving predetermined information to be invested on motor, pump, cable, power house and electric supply. By knowing, the depth at where the sufficient water gaps avail-blew or not to install the motor and pump.
3. To avoid repetitive drilling of borewells and by repairing existing one after scanning.
4. The environment point if view practice of drilling new
borewells affects fall of ground water and scarcity of water occurs. 5.The borewell scanning system useful to educate the farmers regarding existing borewell by forecasting useful data after scanning a borewell .
6. The bore well scanning system by forecasting useful data to educate the customer about underground water at that particular area or site and direction of water flow in the bore well after scanning a newly drilled borewell,
7. The borewell scanning system monitors the design data to farmers at anytime without any modification , change or disturbance upon the existing system.
Advantages of borewell scanning system: The system provide significance by forecasting useful data. The system can able to scan Invisible conditions of existing or newly drilled borewell.
1. Length of casing.
2. Condition of casing(In case of old borewells)
3. Seating condition of casing at rock surface after subsoil.
4. Formation of borewell.
5. To identify dry gaps (Empty layers of earth crest). 6.Present water level indicates water level at that area or zone
7. To identify water gaps or water channels.
8. To Identify the direction of flow of water in the borewell.
9. To identify silt (Loose formation in between rock surfaces).
10. To identify any obstruction in the borewell to install motor.
11. To identify bolders.
12. The borewell scanning system have proved economical to
the user by feeding information to select suitable submers Bible pump and motor to at what depth water channels evadible .number of stages and HP required . 13.The borewell scanning system can able to scan invisible conditions have proved better than geological survey report by saving sampling cost. 14 The borewell scaning system avoids sample collection and testing of earth density to erect pillers for multistoried building by scaning a single borewell at the particular site to what extent subsoil and hard rock availble. These are the some of the major advantages of the borewell scaning system.
Principle of operation :- The visual signals are converted into display signals on the monitor in the borewell containing high hydrostatics pressure of water. The hydrostatic pressure of borewell is more compared to open wells. The pressure in the borewells increases with respect to depth of the borewell. The scaner which is used to scan the borewell is designed to withstand hydrostatic pressure of water. As depth increases pressure also increases on scanner body. The 12 voltas bulb or lamp is used along with scaner to illuminate borehole surface; by allowing scanner and lamp together into theborewell
through the cable graduated with foot marks and a cable is supported by a PVC string to avoid elongation of cable. Not-in the details of borewell on the monitor the image can be recorded to VHS cassata or to pc further reference.
Brief description about drawings:-Fig. 1 - Block diagram of monitor. Fig. 2 - Block diagram of control unit. Fig. 3 - Cable bobin. Fig. 3a - Cable joint. Fig. 4 - Scaning unit. Fig. 4a - First stage amplifier. Fig. 5 - Bore hole.
Fig.l Block diagram of monitor:- The fig.l containg 14 inches color monitor 1 operates at a voltage of 230 volts AC supply, la is the input to the monitor from control box to recieve signals and supply.
Fig.2 Block diagram of Control unit:- The control unit 2 comprising of supply port 10, +ve (a) and -ve(f) supply 12 v DC to scaner from transformer 4 which is made of 12 v, 750 m A AC. the+ve (b) and -ve(f) of audio port 11 receive the signals from the scaner to the monitor through the port 2a. The +ve (c) and -ve (f)of video port 12 recive the video signals from the scaner to monitor through firstage amplifier 8a, second stage amplifier 8 to potentio meter 7 to control the image.
From the transformer 5 The voltage and brightness is controlled by 300 watts dimmer 6. The transformer 5 is made up of 75 V 5 Amphs AC which is converted into DC. The port 13 +ve (d) and -ve (e) supplied to lamp through the cable of lenght 303 m. The voltage 75v supplied from the transformer 5 drops to 12v while passing through the 303 m of cable, (foment of scanner in to bewail is confirmed by hearing audio.
The video signals indicated by video signal meter 14.The audio ievelindicated by audio level meter IS.The port 3 is the input supply from AC mains. The heat developed inside the control unit is removed by means of exust fan 9. Fig. 3 Cable bobbin:- The cable bobbin 18 is made up of wood to wind the cable 17/the cable 17 is supported by a 6mm dia PVC string to prevent elongation of cable 17.
The cable 17 is four in one core 0.25 Sq mm in crossection ( a, b, c, are +ve) and (f -ve). The cable 13 (d +ve,e -ve) is two core 0.5 Sq mm in crossection, all the wires are copper multistrand tin coated for good conductivity and all the wires are insulated by good PVC material so that no con-tact of strands with the water. The wires a, b, c, d are +ve and e, f are -ve are connected to respective probes . The 16 is the cable joint. Fig.3a Cable joint:- The cable joint 16 is very important to join
either ends a, b, c, d, e and f respectively soldering 16(c) each Wire are insulated by PVC insulation tapel6(a) as a first
layer for four layers and second layer insulated by
by 1mm thickness Nitrile Rubber 16(b) on first layer for two
layers, again for 3rd layer both the first and second layers are
insulated by insulation tape 16a. For all wires together are
insulated by insulation tape 16a to make perfect insulation to
avoid short circuits with the water.
Fig-4 Scanning unit:- Comprising of scanner, scanner
body, magnetic compass and thermometer. The scanner body is
designed to withstand hydrostatic pressure. The scanner body
19a is made up of 75mm dia X 120mm long Teflon rod. The
tefflon rod is bored one side to fix scanner 19.
The scanner 19 is a close circuit color camera (C.C Camera) used as a scanner. Inside the scanner body is made empty to remove air completely by substituting metal paste 23 along with the scannerl9 i.e., close circuit camera.
Before installing a scanner 19 In to the scanner body the close circuit camera lens 19c is adjusted to capture image clearly by placing it in bucket of water. After setting the camera in to the scanner body the bottom side is closed by 20 mm transperent Acrylic sheet 20. So that the Acrylic sheet 20 is fitted in to the scanner body by pressing through hydraulic press. So that no water enters in to the scanner body for any depth of water and any hydrostatic pressure.
The other side or top side of the scanner body Is inserted by tapping four numbers of M6 screws 19b at 90^ each at periphery in to the scanner body so that no entry of water along the screws in to the scanner body. The inner end of the screws
are connected to respective wires of scanner ,a b,c are +ve and f is -ve .The outer end of screws i.e., terminals 20 connected to a,b,c,+ve and f -ve of the cable 17. The entire terminals 20 are completely insulated with Nitrile rubber 21a, are enclosed by a conical shaped mild still cover plate 21. The cover plate 21 is clamped to scanner body by four number of M6 screws 21(b) at 90° each circumferentially to avoid entry of water in to the terminals.
A thermometer 21(d) is installed along with the scanner to note down the temperature of the bore well water. The tern-perturb of the borewell also indicates the condition of source. The lamp 22 is protected by insulating araldite 22(d) on the lamp cap 22(c), neck portion 22(a) and lamp terminals
22(e) lamp terminals is soldered to wire 13 d+ve, e-ve respects-
After first layer of araldite 22(d) coating, second layer is coated by metal paste 22(b) of 8mm thickness leaving shell portion clear finally the first and second layer is covered by araldite 22(d). The whole lamp is dried under sunlight for half and hour. The lamp 22 glows at any depth and any pressure of water without burning.
Each lamp can be used to scan at least 10 borewells. The intensity of lamp 22 controlled by a 300 watts dimmer 6 through 75v 5Amps transformer 5. The lamp is adjusted at a distance of 10 inches from base of scanner to capture image clearly.
By noting the image of magnet on the monitor, water flow
direction can be identified . The magnetic needle is suspended at a distance of 12 inches from the scanner The scaner is hoocked 21(b) to string 17(a).
Fig. 4a First stage Video Amplifier:- 8a is the first stage amplifier conected to cable 17 at 500 feet from the scaner 19. The 8a video amplifier is enclosed in a container to withstand leakage, hydrostatic pressure and short circuites from the water inside the borewell.
The container 8(a) Is made up of 75mm shaft X 160mm long bored to enclose video amplifier circuit along with metal paste to make the enclosure empty i.e., free from air. 19(b) are, four M6 screws are inserted by tapping into the body of first stage amplifier body at the top. Similarly four number of M6 screws are inserted into Tefflon plate 8(b) of 30mm thickness by tapping. This Tefflon plate pressed into the body of first stage amplifier body 19(a). The first stage amplifier is connected to inner side of screws 19(b) to respective terminals.
The out side the screws 19(b) are terminals 20 are connected to respective wires a,b,c +ve and f -ve of cable 17. These terminals 20 are insulated by Nitrile rubber 21(a) on both sides of the amplifier body 19(a). These terminals 20 and Nitrile rubber 21(a) are enclosed by a 2mm thickness conical shaped mild steel cover plate 21 which is clamped to first stage amplifier body 19(a) on both sides by M6 screws to protect terminals 20 from short circuits inside the bore well containing hydrostatic pressure.
Fig. 5 Bore hole :Fig. 5 containing casing pipe25, 25(a) is the earth crest and 25 is the borehole.
: I claim:
1. The borewell scanning system comprising of scanner close circuit camera 19 along with a metal paste 23 is enclosed by a Teflon housing 19(a) of 75mm dia X 120mm ;Where as scanner 19 is connected to fastners four in numbers 19(b) passing through the scanner body 19(a) from top side and the outer terminals 20 of the scanner body are connected to respective terminals of cable 17 , a+ve ,b+ve ,c+ve and f-ve ;
Terminal 20 are insulated by Nitrile rubber 21(a) are enclosed by a 2mm thick conical shaped mild steel cover plate to the scanner body 19(a) by means of Fastners 21(b) are four in numbers at periphery of the scaner body,
Where as the scanner body 19(a) covered by 20mm thick transparent acrylic sheeet 21(a) at the bottom of the scanner body 19(a), by means of hydraulic press to prevent leakage of water into the tefflon scanner body 19(a) , terminals 20 of the scanner body connected to cable 17 of four core wire to respective terminals,cable 17 intern connected to 1st stage amplifier 8(a) is Intern connected to second stage amplifier 8 to potential meter 7 to control the signals ,2a output of control unit 2 intern connected to moniter 1 , the lamp 22 is made leak proof by insulating araldite 22(d) on the lamp camp 22(c) ,neat portion 22(a) and lamp terminals 22(e) after first layer of araldite 22(d) coating second layer is covered by metal paste 22(b) of 8mm thickness
leaving clear part of shell ; finally the first layer araldite 22(d) and second layer metal paste 22(b) is covered by araldite 22(d) as a protective layer;Lamp 22 is connected to terminals 13 +ve ,-ve of control unit 2 by means of cable 17 of two core ,the lamp 22 illumination is controlled by a transformer 5,75 volts 5 amps DC supply for a length of cable 17 of 303 meters through 300 watts dimmer controller 6;Where as the transformer 4 of control unit 2 supply 12 volts 750 milliamps to the scanner 19 through the cable 17 of four core wire.
2.The borewell scanning system according to claim 1, the control unit 2 comprising of +ve (a),-ve(f) of supply port 10, +ve(b),-Ve(f) of audio signal port 11 +ve(c),-ve(f) of video signal port 12 and +ve(d),-ve(f) of supply port 13 to lamp 22; 8(a) is the first stage video amplifier is connoted to second stage amplifier 8 of control unit 2 potentiometer 7 to control the signals; Where as the whole control unit is provided by a exhaust fan 9 .
3. The borewell scaning system according to claim 1 the lamp 22 is clamped to scanner body 19(a) by means of 2mm mild steel wire 22(f). 4. The borewell scanning system according to claim lathe cable bobbin 18 to wind cable 17 comprising of four core 0.25 square mm and two core O.Ssq.mm in cross section, cable 17 strands are coated with Tin & cable 17 wires.
a+ve,b+ve,c+ve,d+ve,e-ve and f-ve are connected to either ends respectively , where as the cable joint 16 and each wires a+ve ,b+ve,c+ve,d+ve,e-ve and f-ve are individually soldered, are insulated by first layer by Pvc insulation tape 16(a) and the second layer is Insulated by Nitrile rubber 16(b),these two layers are insulated by Pvc insulation tape 16 (a).
5.The borewell scanning system according claim 1 ,the first stage amplifier comprising of Tefflon shaft of 75mmX120mm bored to enclose video ampliper 8(a) along with metal paste 23 to remove entire air completely, the first stage amplifier body 19(a) is made leak proof by inserting fastners four in numbers into the amplifier body 19(a) from top side,the terminals 20 are connected to cable 17 respectively, all the terminals are insulated by Nitrile rubbler 21(a);
terminals 20 and Nitrile rubber covered by a conical shaped 2mm thick mild steel cover, the cover plate is secured to amplifier body 19(a) on both sides by fastners 21(b) ; the first stage amplifier 8(a) connected to screws 19(b) respectively; the bottom side of the amplifier body is closed by 30mm thick Tefflon plate 8(b) by means of hydraulic press.
6.The borewell scanning system according to claim 1 , a Thermometer 21(d) is clamped to scanner body 19(a); a magnetic needle 24 is suspended by means of 2mm non magnetic wire is clamped to scanner body ,The Whole scanner and cable is supported by a PVC string 17 (a) to hook 21(c).
|Indian Patent Application Number||792/CHE/2004|
|PG Journal Number||38/2007|
|Date of Filing||09-Aug-2004|
|Name of Patentee||SHRI. R. SRINIVASA|
|Applicant Address||1803/3, RANABERAMMA TEMPLE STREET, KOLAR, DIST. MULBAGAL - 563 131.|
|PCT International Classification Number||E21 B 47/09|
|PCT International Application Number||N/A|
|PCT International Filing date|