Development device of underground reservoir in permafrost sedimentary rocks

FIELD: mining.

SUBSTANCE: device includes pulp lifting pipe string with pulp removal head, which is installed inside casing string of the well, air supply pipe string with nozzle provided on its lower end, which is installed inside pulp lifting pipe string with possibility of vertical movement through the head, water supply pipe string installed inside air supply pipe string and having the outlet through side surface of suction tip. Steam supply pipe is installed in upper part of water supply pipe string; there is flange coupling on casing string and pulp lifting pipe string, which tightens those strings between each other; air supply device with two cocks and pressure gauge is installed on casing string below flange connection; inside pulp lifting pipe string there installed is additional water supply pipe string the lower end of which is located on the level of lower end of suction tip and level metre the upper end of which is passed through flange coupling and tightening device, and the jack connected to one of inner pipe strings is installed on the head cover.

EFFECT: improving development efficiency of underground reservoir in permafrost sedimentary rocks.

4 cl, 2 dwg

 

The invention relates to mining and can be used in the construction of underground storage tanks and development of mineral resources by way of a hydraulic borehole mining.

A device for hydraulic borehole mining of minerals, including casing pipes, wells, head, pulp-raising column and located inside vatopediou the string of pipe connected to the suction tip [1].

The disadvantage of this device are large heat losses through the use of water for thawing of the permafrost, which makes the device not effective in the construction of underground tanks.

Closest to the claimed technical solution is a device to implement the method hydraulic borehole mining of minerals, including pulp-raising the string of pipe with a cap for removal of the pulp, air column pipe with a nozzle at the lower end, mounted within the pulp-raising pipe string, with the possibility of vertical movement through the heads vatopediou the string of pipe installed inside vozduhopodajushchej pipe string and having an exit through a side surface of the suction tip [2].

The disadvantage of this device is the inability to increase pressure in the well is La increase productivity airlifting rise and the inability to supply working capital, additional water and steam for weighing the sediment, regulation of the water level in the well and supply the maximum amount of heat for melting the permafrost.

Our problem is to increase the efficiency of creating an underground reservoir in permafrost sediments.

In the solution of this problem are provided:

- Maximum supply of heat for defrosting when the steam flow with a specified constant flow.

- Improved performance airlifting rise due to sealing of wells and increase positive air pressure on top of the well to create excessive backwater when the airlift.

- Ability to use the entire volume of the circulating water to weight of sediment in the area of the suction of air, which simplifies the process flow dewatering of sand on the surface of the raised airlift slurry.

The level control section air-water in an underground reservoir allows you to manage the process of creating a production-capacity of a given stable forms.

- The capability of raising and lowering the suction tip provides a uniform suction sand airlift with the maximum density of the slurry.

The essence of the proposed technical solution is that in the device to create an underground reservoir in m is ogretmenler sedimentary rocks, includes pulp-raising the string of pipe with a cap for removal of the pulp that is installed inside the casing pipe wells, intake column pipe with a nozzle at the lower end, mounted within the pulp-raising pipe string, with the possibility of vertical movement through the heads vatopediou the string of pipe installed inside vozduhopodajushchej pipe string and having an exit through a side surface of the suction tip, according to the proposed method in the upper part vodopada column of pipes installed parapodia pipe, casing and pulp-raising the string of pipe is made flange connection, sealing these columns between the casing pipe below the flange has a supply of compressed air with two cocks and pressure gauge, inside pulp-raising the tubing installed additional vodopada column pipe, the lower end of which is located at the lower end of the suction tip and the sensor, the upper end of which is passed through a flange coupling and sealing device, and the cover cap has a Jack connected to one of the interior columns of pipes.

Distinctive feature of the device is that the length propedeuse the tubing inside vodopada the tubing, 0.5-1 m

the other distinctive feature of the device is the sensor is made in the form of a tube, the lower end of which has a side hole, and the upper end is connected with a pressure gauge and valve.

As a distinctive feature of the device is that the connection of the Jack to one of the interior columns of tubes made in the form attached to it traverses through which skipped movable and immovable rod with holes for fixing their relative position to the head plate by inserting the fingers, the lower end of the movable rod attached to the piston rod of the Jack.

Installation propedeuse pipe in the upper part vodopada the tubing allows applying steam with a constant flow together with supply the same pipe with a variable flow of additional water that provides maximum heat on defrost and the possibility of regulating the flow of water to control the position of the air-water in an underground reservoir, reduce the number of pipes for water and steam.

Flange connection on the casing and pulp-raising the string of pipe, sealing these columns between them, provides the possibility of increasing the excess pressure in the well to improve the performance of airlifting rise.

Installation of compressed air with two valves and a pressure gauge on the casing pipe below the flange allows isit excess pressure in the well to improve the performance of airlifting lifting and provides the ability to control the pressure.

Extra vodopada the tubing, the lower end of which is located at the lower end of the suction tip, provides weighing settled sand in the area of the suction of air and separate feeding of the working capital and additional water in the device.

Installation of the transmitter, the upper end of which is passed through a flange coupling and sealing device allows you to control the level section of air-water in an underground reservoir under pressure.

Install the Jack on the cover cap connected to one of the interior columns of tubes, allows you to move the suction tip during operation of the device.

Length propedeuse the tubing inside vodopada the tubing of 0.5-1 m, provides efficient mixing in pipe steam and water, characterized by the magnitude of the pressure and density and moving down.

The implementation of the transmitter in the form of a tube, the lower end of which has a side hole, and the upper end is connected with the pressure gauge and the valve allows the pressure or absence to determine the interface water-air and, if necessary, to produce the blowing tube with compressed air, if the blockage.

The connection of the Jack to one of the interior columns of tubes, made in the form attached is as it traverses, through which skipped movable and immovable rod with holes for fixing their relative position to the head plate by inserting the fingers, the lower end of the movable rod attached to the piston rod of the Jack allows you to use the Jack with a small stroke for lifting and lowering the suction tip to a height exceeding the stroke.

Thus, the totality of these symptoms provides a solution to the problem of increasing the efficiency of creating an underground reservoir in permafrost sediments.

The proposed device to create an underground reservoir in permafrost is illustrated by figure 1 and 2.

Figure 1 shows a General view of the device to create an underground reservoir in permafrost sediments. Figure 2 shows the upper part of the device with a hoist to move the process columns of pipes.

In the device of figures 1 and 2 frozen sand rock opened well 1, which is equipped with casing pipe 2 with the flange 3. In well 1 was launched pulp-raising column pipe 4 with the top 5 in the form of air-purge drum in the upper part and a movable suction tip 6, is rigidly connected with vodopada 7 and vozduhopodajushchej 8 column pipes. Pulp-raising column pipe 4 is connected with the casing pipe 2 LAF is zinc compound 3, sealing these pipe string between them. In the lower part vozduhopodajushchej the tubing 8 is made slit nozzle 9. Inside vozduhopodajushchej the tubing 8 is installed pipe 10 for supplying the coolant opening in the bottom through the side surface of the suction tip 6 and having in the upper part of the two nozzle for supplying additional water 11 and a pair of 12. The pipe for the steam supply 12 is connected with parapodia pipe 13 with a length of 0.5 m -1 the casing pipe 2 below the flange 3 has a node for supplying compressed air inlet 14 and sbresny 15 valve and pressure gauge 16. Through the flange 3 and the sealing lip device 17 between the casing pipe 2 and pulp-raising column pipe 4 has a sensor 18 having a side opening 19 at the lower end and a pressure gauge 20 with the valve 21 in the upper part. On the lid of the cap 5 has the Jack 22 is connected to vodopada column pipe 7.

Figure 2 shows a variant of the device in which the rod of the Jack 22 is connected to the movable rod 23. The second stationary rod 24 is installed on the lid of the cap 5. Mobile 23 and 24 fixed rod passed through the yoke 25, mounted on vodopada the string of pipe 7, and have holes 26 to install plug finger 27, which fix the position of the rods 23 and 24 with regard to the provisions of the tra is of the Seminary 25.

The operation of the device is as follows. After opening a frozen sand of the reservoir bore 1 are mounted therein casing pipe 2 with a flange 3 at one end (figure 1). Inside the casing pipe 2 is mounted pulp-raising column pipe 4, which rests a flange 3 on the casing pipe 2. Then in pulp-raising the string of pipe 4 is mounted suction tip 6, is rigidly fixed on vodopada 7, vozduhopodajushchej 8 the string of pipe and the pipe coolant 10. On pulp-raising the string of pipe 4 is set to the head 5, through the lid which are ignored vodopada 7, intake 8 column pipes and pipe coolant 10. At the top of the pipe coolant 10 is installed pipe for supplying additional water 11 and parapodia pipe 13 to the pipe for the steam supply 12. On the cover of the tip 5 is mounted in the Jack 22, the rod of which is connected with the movable rod 23. At the upper end vodopada the tubing 7 is fixed yoke 25, through which are passed movable rod 23 and the stationary rod 24 resting on the lid of the cap 5. Through the flange 3 and the sealing lip device 17 is skipped transmitter 18 on the calculated depth of the provisions of section level water-air scour podsemeistvam. The casing pipe 2 below the flange 3 is set to the node for supplying compressed air inlet 14 and sbresny 15 valves and pressure gauge 16. With flexible pressure hoses inlet valve 14 and air supply column pipes 8 are connected with a portable compressor, a pipe 12 connects with mobile diesel steam installation, vodopada column pipe 7 with the circulating water pump mounted on the dewatering installation, and the pipe 11 with the pump in the tank for additional water to fill the pipeline with water from a nearby pond.

Compressed air from the compressor is fed into the intake column pipe 8 and through the slotted nozzle 9 is introduced into the pulp-raising the string of pipe 4, which provides suction through the tip 6 of the slurry of sand and water and airlifting rise to the surface. The slurry through the cap 5 is directed to the drying unit, where it separates the sand from the water. Dehydrated sand stored on the surface, and the circulating water is pumped into vatopediou the string of pipe 7 for weighing of sand deposited in the thawing on the bottom of the underground tank. To improve the performance of airlifting rise compressed air from the compressor is fed through the site compressed air supply valve 14 in the casing pipe 2. With OSU pressure gauge 16 and waste valve 15 to regulate the air pressure in the borehole 1, that increases the magnitude of the overpressure when the airlift. Position control section level air-water in an underground reservoir is carried out on a pressure gauge 20 gauge 18 and by periodically opening the valve 21. If the section level water-air is below 18 gauge, pressure gauge 20 will be equal to the pressure on the pressure gauge 16. In this case, increases the supply of additional water through the pipe 11 or decreases the supply of compressed air in the air column pipe 8 from the compressor. If the section level water-air is above the openings 19 of the transmitter 18, after the opening of the valve 21, the compressed air will not come out of the sensor 18 and the pressure on the gauge when closed, the valve 21 will be 0. In this case, the reduced supply of additional water through the pipe 11 or the increased flow of compressed air in the air column pipe 8 from the compressor. In design mode installation section level water-air is located between the lower end of the transmitter 18 and a side opening 19, while the pressure gauge 20 will be less than the air pressure on the pressure gauge 16 due to the fact that inside the transmitter will set the water column, measured by excess pressure in the borehole 1, and at the opening of the valve 21 to the transmitter 18 will raise the air / water mixture through eleftheroudakis action of air, prohodjashih is through a side opening 19.

To ensure airlifting rise slurry of high density, which ensures efficient operation, move the suction tip 6 with the Jack 22. As a rule, the rise of the suction tip is necessary after 6 stops the operation of the device, which results in the bottom of the underground tank accumulates thawed sand and dramatically increases the density of the raised slurry. In this case, with the Jack 22 moves the movable rod 23, which by means of finger 27 which is inserted in the hole 26, raises the yoke 25 with vodopada column 7 of the pipe and secured thereto, a suction tip 6. If the stroke of the rod of the Jack 22 is not sufficient for lifting the suction tip 6, at maximum output rod of the Jack 22 is installed finger 27 in the hole 26 on the stationary rod 24 and down the stem of the Jack 22 in the lower position. On the movable rod 23, the finger 27 is installed in the hole 26 under the head plate 25 and is the rise of the suction tip 6 on the stroke of the rod of the Jack 22.

The descent of the suction tip 6 is in the reverse order.

An example of a specific use of the present device is applied to the creation of underground storage tank for diesel fuel oil, gas and condensate places the birth of the Yamal Peninsula. Frozen sand layer with thickness of 20 m lies at a depth of 50 m from the surface. Airlifting the rise of the sand at the depth of airlift less than 30% without creating additional backwater in the well does not provide effective creation of an underground reservoir due to low performance airlifting rise. During operation of the device in the well 1 through the site compressed air supported additional boost air pressure of 0.25 MPa. The coefficient of flooding airlift at the height of the section level air-water in the underground tank is 15 m, and the height of the airlift 55 m was 73%, which provided the necessary performance raised slurry 100 m3per hour when the content of sand up to 25%. When the performance of the subterranean reservoir, with a capacity of 4000 m3the proposed device was created for 15 days, which confirmed the effectiveness of using the device to create an underground reservoir in permafrost sediments.

Sources of information

1. Abramov GU, Willmes A.L. Well hydropobic deep rich iron ore KMA. 1st Soviet-Yugoslav Symposium on borehole hydraulic technology. Vol. 1, MGRI, 1991, pp.33-37.

2. Patent of Russia №2181434, IPC IS 45/00, "the Way of a hydraulic borehole mining of minerals and the device d is I its implementation", 1999

1. Device to create an underground reservoir in permafrost, including pulp-raising the string of pipe with a cap for removal of the pulp that is installed inside the casing pipe wells, intake column pipe with a nozzle at the lower end, mounted within the pulp-raising pipe string, with the possibility of vertical movement through the heads vatopediou the string of pipe installed inside vozduhopodajushchej pipe string and having an exit through a side surface of the suction tip, characterized in that the upper part vodopada column of pipes installed parapodia pipe, casing and pulp-raising the string of pipe is made flange connection, sealing these columns between the casing pipes below the flange has a supply of compressed air with two valves and a pressure gauge inside the pulp-raising the tubing installed additional vodopada column pipe, the lower end of which is located at the lower end of the suction tip and the sensor, the upper end of which is passed through a flange coupling and sealing device, and the cover cap has a Jack connected to one of the interior columns of pipes.

2. The device according to claim 1, characterized in that the length propedeuse columns of the pipe, inside vodopada the tubing, 0.5-1 m

3. The device according to claim 1, characterized in that the sensor is made in the form of a tube, the lower end of which has a hole, and the upper end is connected with a pressure gauge and valve.

4. The device according to claim 1, characterized in that the connection of the Jack to one of the interior columns of tubes made in the form attached to it traverses through which skipped movable and immovable rod with holes for fixing their relative position to the head plate by inserting the fingers, the lower end of the movable rod attached to the piston rod of the Jack.



 

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10 dwg

FIELD: transport, package.

SUBSTANCE: invention relates to stacking separate packed circles of melted cheese. In compliance with proposed method, package is made from two identical-shape stacks. First stack is carried by first transportation line and second stack are carried by second transportation line in horizontal position by conveyor. Both lines run parallel and one above the other each other into zone of stacks integration. Note here that top line terminates in slide-off edge that forms integration zone. Note here that there are synchronisation appliances adjusted so that the stack carried on the slide-off edge is placed flush with the stack carried by bottom line to produce common stack. Common stack comprises at least two stacks of melted cheese circles. The package is produced as described above.

EFFECT: simplified procedure, higher efficiency.

14 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to pneumatic transport and can be used for transfer of loose materials, fluids and suspicion in construction, agriculture, etc. Proposed consists of hopper, transport pipeline and gas (air) pulsed feed tube. Said hopper communicates with said tube via proportioner. Besides device incorporates steam feed pipeline communicated via two branches and valves with two cylinders. Cylinder piston rods are coupled with those of pneumatic cylinders. Waste steam and air (gas) exhaust valves are fitted in the cylinders. Pneumatic cylinders are intercommunicated by pipeline with valve, while aforesaid gas feed pipeline branches are intercommunicated via valve that control air pulse intermittent feed into the tube.

EFFECT: simplified design, possibility to used steam (waste steam included) to transport powder-like loose materials.

1 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: method includes performing a test pumping of liquid waste into absorbing well before operational pumping, while changing flow step-by-step. From equation of absorption base hydrodynamic parameters are determined for calculation of predicted coefficients of operation characteristics of absorbing well and reserve well. During operational pumping of liquid waste together with thermometry along absorbing well shaft, registration of actual pressures and flow on pump devices, actual pressures on mouth in tubing pipes of absorbing well, actual pressures on face are additionally registered in absorbing well as well as pressures on mouth in behind-pipe space, actual loss at mouth in behind-pipe space, actual loss of waste on mouth, actual positions of face well, upper and lower limits of absorption range from well mouth. In reserve well actual pressures on face are registered, as well as actual positions of liquid level from reserve well mouth, upper and lower limits of absorption range. Prediction coefficients are compared for operation characteristics of absorbing well and reserve well to actual coefficients. 9 conditions of hydrodynamic bed conditions at reserve well and absorbing well are considered during pumping of waste. Specific actions of operator on each condition are described.

EFFECT: higher reliability and trustworthiness.

1 ex

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