The method of obtaining high temperature and pressure in a confined and confined space

 

(57) Abstract:

The invention relates to oil, gas, mining and chemical industries. The essence of the invention: method of producing high temperatures and pressures in a confined or limited volume, which is filled with liquid electrolyte containing soluble salts of sodium or potassium. Continuously create in the filled volume of ball lightning when the current capacity of 3-1000 kW and voltage 250-70000 Century When this current is served by ion electrodes. The advantage of the invention is that the way to create high temperature and pressure is controlled.

The invention relates primarily to the oil, gas, mining and chemical industries, where the need to quickly and easily obtain high temperature and pressure. For example, to increase the pressure in the reservoir, for burning tunnels and holes in hard rock and refractory materials to create depth and borehole pumps, as well as for scientific research.

Know the use of heated brine to reach the boiling point exceeding her and degassing to push hydrocarbons (SU # 1694872). This way darling Lenz). The scope of application of the known method is limited.

There is also known a method of underground drilling which generates a shock wave in the liquid by spark discharge in her powerful energy of the capacitor (US No. 4741405, 3679007). This achieves high pressures and temperatures for a short period of time. However, the above method requires special equipment, which makes the possibility of its application.

Closest to the claimed method is the impact on the oil reservoir (RU # 2163662). This method provides for a flow of formation in mixtures of ion-plasma processes. Spontaneous ignition method requires special equipment, which makes the possibility of its application.

Closest to the claimed method is the impact on the oil reservoir (RU # 2163662). This method provides for a flow of formation in mixtures of ion-plasma processes. Spontaneous ignition of the plasma leads to heating of the mixture up to 3000C, the pressure increases and happen dissolution and displacement of residual bitumen. The loop layer should be sufficiently long and requires constant pumping of saline water for p the th plasma.

Also known is a method of obtaining fireballs in the air, through the water layer, with the addition of salts to the conductivity flow discharge current (EN No. 2168289). In this case, get a high-energy ball lightning, which when interacting with conductors or conducting media instantly highlight all stored in her energy. Ball lightning may have different densities and are divided into low - and sredneperiodicheskii and high-energy.

The technical task of the present invention is an extension of the existing Arsenal of tools for creating high temperatures and pressures so that the process proceeded steadily and were manageable.

The technical effect is due to the use of the energy of ball lightning, which is released during the interaction with the host environment. As well as the process occurs in a closed or limited volume, pressure and temperature are increased. Thus the claimed technical solution fulfills its purpose. The density of ball lightning can be chosen according to the required temperature and pressure.

The essence of the claimed technical solution is that the method by polyelectrolytes, containing soluble salts of sodium or potassium, and constantly create a torrent of fireballs at a current capacity of 3-1000 kW and voltage 250-70000 In, when this current is served by ion electrodes.

The following are examples of the implementation of technical solutions.

Example 1. Metal tank with a volume of 100 l, the calculated pressure of 400 ATM, completely filled with liquid electrolyte, one component of which was a solution of potassium chloride. Through a special hole in the wall of the tank were connected electric wire, the end of which was connected (located directly in the tank), the hub of the electric field, which represents an electrolytic capacitor in the perforated titanium for the formation of ball lightning. The pressure in the tank was controlled by a special gauges. All holes were sealed.

In pulse mode, with a pulse period of 1 second and pause 3 seconds, the hub was applied constant electric current capacity of 7 kW at a voltage of 380 V, which was monitored by a voltmeter and wattmeter, when it was formed, according to calculations by the consumption of electrical energy ball mold the pressure gauge 450 ATM, the process was stopped. The tank has been tested.

Example 2. In a water well at a depth of 200 m, is completely filled with water, in all its depth were omitted insulated wire, the ends of which were connected ion electrodes. The water well was added 0.3 kg of potassium nitrate and 1 kg of sodium chloride. Next on the wire put alternating electric current voltage of 300 V and a frequency of 0.1 kHz to education fireballs estimated from the density of the energy of 50-70 j/cm3. Power current was 12 kW. Electrical parameters were monitored gauges voltmeter, wattmeter and frequency. 10 sec after switching on the unit from the well began to beat the water fountain, which indicates an increase in pressure above 20 atmospheres.

Example 3. The titanium slab thickness of 200 mm was made depression with a depth of 30 mm and a diameter of 40 mm. In deepening were inserted two ion electrode, which, as in the second example, were connected to the electric wire. In the recess was filled with an electrolyte consisting of a 10% aqueous solution of potassium sulfate and 15% aqueous sodium acetate solution.

The electrodes were applied alternating electric current frequency 0,065 kHz, voltage 250 C. Power current cashmere. Once turned on the current, in the recess formed fireballs with energy densities of about 90 j/cm3based on the calculation that burned in the stove through hole with a diameter of about 50 mm melting point of titanium is C and boiling S. During the process of deepening poured a small portion of the molten metal by volume is much smaller than it should be based on the diameter of the through hole. From this it follows that the process temperature ranged from 1668 to 3330 +10-40S based on energy costs.

The current can be continuous, pulsed or alternating. The frequency of the alternating current is selected from the range of 0.65-200 kHz. The achieved temperature range from 120 to S, the pressure is from 10 to 3000 ATM. The proposed method is simple and cheap, as it does not require special equipment.

The method of obtaining high temperature and pressure in a confined or limited volume in which the volume is filled with liquid electrolyte containing soluble salts of sodium or potassium and continuously create fireballs at a current capacity of 3-1000 kW and voltage 250-70000 In, when this current is served by ion electrodes.

 

Same patents:

The invention relates to the field of oil and can be used for stimulation of oil to producing wells

The invention relates to mining and can be used for development and rehabilitation of well production wells

The invention relates to mining and can be used for development and rehabilitation of well production wells, reduced due to clogging of wellbore zone of asphalt formations and solids
The invention relates to the oil and gas industry, in particular to methods of intensification of the flow of hydrocarbon fluids in wells, reservoirs which kolmat wax and paraffin deposits deposits

The invention relates to the processing of productive layers and filters wells

The invention relates to the oil and gas industry, in particular to intensify well by restoring the perforation of the casing

The invention relates to a downhole jet pump installations for oil

The invention relates to the oil and gas industry and is designed to improve the productivity of wells by bottomhole zone treatment

The invention relates to the oil and gas industry, namely, development wells, including those equipped with packer

The invention relates to mining and can be used for development and rehabilitation of well production wells, reduced due to clogging of wellbore zone of asphalt formations and solids

FIELD: oil and gas extractive industry.

SUBSTANCE: device has pipe-like body with detachable upper and lower sleeves. Concentrically to body, with possible rotation relatively to it, a cover is mounted with blades with scrapers placed spirally on its surface. To lower sleeve a reactive end piece is connected with slit apertures. End piece hollow is filled with granulated material engaging in exothermal reaction with acid. Lower portion of end piece is provided with check valve. Upper sleeve is provided with check valve having locking element in form of sphere with shelf and centering elements, to be dropped from well mouth. Base of saddle of check valve is made in form of disc having diameter equal to diameter of body. Pass aperture of saddle in lower portion is overlapped with easily destructible and easily removed element. Length of sphere shelf is greater than height of pass aperture of saddle of check valve of upper sleeve.

EFFECT: higher reliability, higher efficiency, broader functional capabilities of device.

3 cl, 4 dwg, 1 tbl

FIELD: oil and gas production.

SUBSTANCE: groups of high intake- and low intake-capacity injecting wells are chosen in a single hydrodynamic system and, for each well, oil reservoir properties and permissible degree of pollution of fluid received by high intake-capacity wells are determined. When fluid from low-permeable oil reservoir flows off through high intake-capacity wells, this fluid is cleaned to permissible degree of pollution.

EFFECT: reduced losses in intake capacity of formations and increased time between treatments of wells.

1 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: method includes forming of gas pillow by forcing gas into inter-tubular space. Further pushing liquid is forced therein with forcing away of liquid from inter-tubular space along tubing column into tank or store, pressure is dropped from inter-tubular space down to atmospheric and hydro-impact is used to effect well face by rotating liquid flow from tubing column. Pillow is formed by plant for forcing pushing liquid and gases. As gas, mixture of air and exhaust gases is used in relation no greater than 2:3. pillow pressure provides for prevention of gas from getting into tubing column. Volume of pushing liquid is determined from formula: Vpl=0.785.(d

21
-d22
).(HT-Hgp-Hi-t).10-6, where d1 - inner diameter of casing column, mm; d2 - outer diameter of tubing pipes, mm; HT - depth of lowering tubing column in well, m; Hgp - height of gas pillow in inter-tubular space, m; Hgp=K·Pgp; K - hydrostatic coefficient of resistance to pushing of liquid and gas (K=100 m/MPa), m/MPa; Pgp - end pressure of gas pillow, MPa; Hi-t - inter-tubular space height.

EFFECT: higher safety, higher efficiency.

3 cl, 2 dwg, 2 ex, 1 tbl

FIELD: oil industry.

SUBSTANCE: device has pump, placed on well mouth equipment, tubing string, passing downwards in casing string of well. Node of hollow cylinders is connected to lower portion of tubing string. A couple of pistons is placed inside cylinders node and connected to pump via pump bars and gland rod. For compression of liquid within cylinders node, pump is enabled. Compressed liquid is outputted into casing column, and strike wave is formed as a result. Cylinders node includes upper cylinder, lower cylinder. Transfer cylinder is placed below upper and above lower cylinders. Cylinder with compression chamber is placed between transfer cylinder and upper cylinder. Lower cylinder is made with possible placement of lower piston, and upper cylinder is made with possible placement of upper piston. Lower piston has larger diameter, than upper piston. Displacement of piston affects volume of compression chamber, decreasing it. Liquid in the chamber is compressed. During downward movement of piston liquid is lowered into well. Seismic data from wells at remote locations are gathered and processed.

EFFECT: higher efficiency.

4 cl, 9 dwg

FIELD: oil industry.

SUBSTANCE: device has receiving chamber with solid-fuel charges and igniter, combustible plug and air chamber with atmospheric pressure. Receiving chamber is perforated along whole length by apertures for outlet of combustion products. Charge adjacent to upper end of receiving chamber burns from its end. It is made of heat-resistant low-gas slow-burning compound with high temperature of combustion products and high caloricity, with low dependence of burning speed from pressure and it is protected from burning at side surface by compound preventing burning thereon, but burning together with charge. Charge, adjacent to plug, is of channel construction, quick-combustible, and it is made of heat-resistant gas-generating compound. Igniter is mounted in upper end of charge, adjacent to upper end of receiving chamber. Air chamber with atmospheric pressure is placed below receiving chamber.

EFFECT: higher efficiency.

2 cl, 1 dwg

FIELD: oil industry.

SUBSTANCE: device for complex treatment of face-adjacent well zone has thermal gas-generator charged with fuel with electric igniter and pipe-shaped container with acid solution, made with perforation apertures, both mounted on rope-cable. Acid solution is positioned in thermal-melting hermetic tank inside the container. Device is additionally provided with depression chamber and impact-wave effect chamber, containing remotely controlled fast-action locks, with two packers, mounted at ends of pipe-shaped container. Packers are opened under pressure from gases from gas generator. After operation of gas generator is finished, packers release pipe-shaped container. Depression chamber, impact-wave effect chamber and gas generator are jointly connected.

EFFECT: higher efficiency.

2 cl, 1 dwg

FIELD: oil industry.

SUBSTANCE: method includes determining dominating frequency of productive bed by performing prior vibration-seismic action using surface oscillations source at different frequencies and analysis of seismic graphs from seismic receivers in product wells. Vibration-seismic effect on watered portion of productive bed of oil deposit is performed by a group of surface oscillations sources, operating at dominating frequency of productive bed. Bed fluid is extracted via product wells. After vibration-seismic effect on watered portion of productive bed of oil deposit by a group of surface oscillations sources, operating at domination frequency of productive bed, concurrent vibration-seismic effect is performed using two sub-groups of said group of surface oscillation sources. Each sub-group of group operates at determined from mathematical dependence. Average frequency of surface oscillations sources of whole group is equal to dominating frequency of productive bed. Difference in frequencies, on which each sub-group operates, is determined in accordance to linear size of watered portion of productive bed of oil deposit and is satisfactory to mathematical dependence. Concurrent vibration-seismic effect by two sub-groups of said group of surface oscillations sources is performed with forming of wave having length exceeding length of wave with dominating frequency.

EFFECT: higher oil yield.

2 ex

FIELD: mining industry.

SUBSTANCE: processing periods include forming of depression pressure change between well-adjacent bed zone and well hollow. Cleaning of well-adjacent bed zone is performed by prior feeding of fluid into well, forming of periodic pressure pulses in well-adjacent bed zone in form of fading standing wave, moving along the well, and decreasing pressure during fluid movement along well from well-adjacent bed zone to day surface for extraction of clogging. Plant for washing wells is used, which is connected to behind-pipe space of well and to tubing pipe. Behind-pipe space of well is isolated by packer along lower limit of perforation range. Perforation range is filled with sedimentation, formed from destroyed rock, and accumulated above packer as a result of gradual and even cleaning of well-adjacent bed zone along whole length of perforation range. Packer is disabled and well is washed clean, without raising tubing pipes column.

EFFECT: higher efficiency.

1 dwg, 1 ex

FIELD: oil industry.

SUBSTANCE: method includes pulse treatment of productive bed by energy of atmospheric electricity by using lightning discharge. Prior to initialization of storm discharge voltage of electric field above well is measured using measuring block. Initiation of storm discharge is performed when reaching value of strength of electric field above well no less than 30 kV/m and enough for forming leading channel of lightning. To exclude corona as receiver of electric energy metallic mast is used, on upper end of which metallic fragment of spherical form is positioned having smooth external surface, or smooth metallic wire is used with its possible raising towards storm cloud. Output of receiver is connected to casing column of well. Powerful electric discharge along casing column and through its perforated portion gets into area of productive bed and disperses there.

EFFECT: simplified method, simplified construction of device, higher product yield.

2 cl, 1 dwg

FIELD: oil production, particularly to stimulate oil extraction under difficult field development conditions, particularly in the case of carbonate formation treatment.

SUBSTANCE: method involves forming new cracks and/or stimulating existent ones in production bed by serially well flushing and performing periodical depressive and repressive actions along with flushing thereof at circulation or outflow stages; isolating interval to be treated with packer; cyclic changing pressure with following injecting working liquid, for instance oil and/or at least one plug of chemical agent, for example of hydrochloric acid. All above operations are performed along with oscillating action of radiator installed in front of production bed interval to be treated.

EFFECT: increased intensity of production bed treatment and extended operational functionality.

23 cl, 2 ex

Up!