RU95110982A - GAS GENERATOR FOR INCREASING THE DEBIT OF WELLS AND METHOD OF ITS USE - Google Patents
GAS GENERATOR FOR INCREASING THE DEBIT OF WELLS AND METHOD OF ITS USEInfo
- Publication number
- RU95110982A RU95110982A RU95110982/03A RU95110982A RU95110982A RU 95110982 A RU95110982 A RU 95110982A RU 95110982/03 A RU95110982/03 A RU 95110982/03A RU 95110982 A RU95110982 A RU 95110982A RU 95110982 A RU95110982 A RU 95110982A
- Authority
- RU
- Russia
- Prior art keywords
- longitudinal channel
- gas
- gas generator
- solid fuel
- paragraphs
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 6
- 239000004449 solid propellant Substances 0.000 claims 12
- -1 for example Substances 0.000 claims 9
- 239000000446 fuel Substances 0.000 claims 7
- 239000000463 material Substances 0.000 claims 6
- 238000007789 sealing Methods 0.000 claims 5
- 239000012530 fluid Substances 0.000 claims 4
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 230000002706 hydrostatic effect Effects 0.000 claims 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 3
- 239000012783 reinforcing fiber Substances 0.000 claims 3
- 239000004743 Polypropylene Substances 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000011152 fibreglass Substances 0.000 claims 2
- 229920001684 low density polyethylene Polymers 0.000 claims 2
- 239000004702 low-density polyethylene Substances 0.000 claims 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 2
- 229920001155 polypropylene Polymers 0.000 claims 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims 2
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 229920004936 Lavsan® Polymers 0.000 claims 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000003779 heat-resistant material Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 229910052724 xenon Inorganic materials 0.000 claims 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims 1
Claims (1)
где D - диаметр продольного канала, м;
n - запас надежности, безразмерный;
λт - теплопроводность топлива, Вт/(м•К);
Ts - температура поверхности горящего топлива, К;
T0 - начальная температура газа в продольном канале, К;
x - коэффициент теплопотерь, безразмерный;
ρо - начальная плотность газа в продольном канале, кг/м3;
ε - степень сжатия, безразмерная;
С - удельная теплоемкость газа в продольном канале, Дж/(кг•К);
Uт - скорость горения топлива, м/с;
T - температура газа в продольном канале после сжатия, К;
W0 - начальный объем газа в продольном канале, м3;
W - объем сжатого газа в продольном канале, м3;
P - давление сжатого газа в продольном канале, Па;
P0 - начальное давление в продольном канале, Па;
γ - показатель адиабаты, безразмерный.1. A gas generator to increase the flow rate of wells, containing an elongated unitary solid fuel unit with a longitudinal channel, characterized in that one end of the longitudinal channel is plugged with a unitary solid fuel plug, and an elastic piston, for example, made of rubber, is installed in the input part of the other end of the longitudinal channel which is fastened at the outer end with the provided sealing plug so that it can be cut off at an external pressure corresponding to the hydrostatic pressure in the well at a given depth at the same time, the diameter of the longitudinal channel is determined from the following conditions:
where D is the diameter of the longitudinal channel, m;
n is the safety margin, dimensionless;
λ t - thermal conductivity of the fuel, W / (m • K);
T s is the surface temperature of the burning fuel, K;
T 0 - initial gas temperature in the longitudinal channel, K;
x is the coefficient of heat loss, dimensionless;
ρ about - the initial density of the gas in the longitudinal channel, kg / m 3 ;
ε is the compression ratio, dimensionless;
C is the specific heat of gas in the longitudinal channel, J / (kg • K);
U t - fuel burning rate, m / s;
T is the gas temperature in the longitudinal channel after compression, K;
W 0 - the initial volume of gas in the longitudinal channel, m 3 ;
W is the volume of compressed gas in the longitudinal channel, m 3 ;
P is the pressure of the compressed gas in the longitudinal channel, Pa;
P 0 - initial pressure in the longitudinal channel, Pa;
γ is the adiabatic exponent, dimensionless.
где hб - высота срезного кольцевого буртика, м;
D - диаметр продольного канала, м;
Pс - гидростатическое давление в заданном месте скважины, Па;
P0 - начальное давление в продольном канале, Па;
σпр - предел прочности материала ступенчатой заглушки, Па.3. A gas generator to increase the flow rate of wells according to claim 1, characterized in that the sealing plug is made stepwise with a shear annular shoulder in its middle part, and the height of the middle annular shoulder is determined from an approximate ratio
where h b - the height of the shear annular collar, m;
D is the diameter of the longitudinal channel, m;
P with - hydrostatic pressure at a given location in the well, Pa;
P 0 - initial pressure in the longitudinal channel, Pa;
σ CR - the tensile strength of the material of the stub, Pa.
где d - диаметр перепускного канала, м;
ρо - начальная плотность газа в продольном канале, кг/м3;
С - удельная теплоемкость газа, Дж/(кг•К);
ε - степень сжатия, безразмерная;
R - удельная газовая постоянная, Дж/(кг•К);
η - динамическая вязкость газа, Нс/м2;
l - длина перепускного канала, м;
ρт - плотность топлива, кг/м3;
Ст - удельная теплоемкость топлива, Дж/(кг•К);
x - коэффициент теплопотерь, безразмерный;
Uт - скорость горения топлива, м/с;
λт - теплопроводность топлива, Вт/(м•К);
Pс - гидростатическое давление в скважине, Па;
P0 - начальное давление в продольном канале, Па.4. Gas generator to increase the flow rate of wells in paragraphs. 1 and 3, characterized in that in the longitudinal channel there is a solid fuel partition in which a bypass channel is made, the diameter of which is determined from an approximate ratio
where d is the diameter of the bypass channel, m;
ρ about - the initial density of the gas in the longitudinal channel, kg / m 3 ;
C is the specific heat of gas, J / (kg • K);
ε is the compression ratio, dimensionless;
R is the specific gas constant, J / (kg • K);
η is the dynamic viscosity of the gas, Ns / m 2 ;
l is the length of the bypass channel, m;
ρ t - fuel density, kg / m 3 ;
With t - specific heat of fuel, J / (kg • K);
x is the coefficient of heat loss, dimensionless;
U t - fuel burning rate, m / s;
λ t - thermal conductivity of the fuel, W / (m • K);
P with - hydrostatic pressure in the well, Pa;
P 0 - initial pressure in the longitudinal channel, Pa.
где δ - толщина упрочняющих волокон, м;
λт - температуропроводность твердого топлива, Вт/(м•К);
ρт - плотность твердого топлива, кг/м3;
Uт - скорость горения твердого топлива, м/с;
d - диаметр канала, м.5. Gas generator to increase the flow rate of wells according to paragraphs. 1, 3 and 4, characterized in that inside the solid fuel block flush with the channel surface are formed reinforcing fibers of a heat-resistant material with thermal diffusivity close to thermal diffusivity of solid fuel, for example, fiberglass, and the thickness of the reinforcing fibers is determined from the condition
where δ is the thickness of the reinforcing fibers, m;
λ t - thermal diffusivity of solid fuel, W / (m • K);
ρ t - density of solid fuel, kg / m 3 ;
U t - burning rate of solid fuel, m / s;
d is the diameter of the channel, m
Полиоксиэтилен - 66 -105
Полиэтилен низкой плотности - 105 - 140
Полипропилен - 140 - 190
Поливинилфторид - 190 - 232
Олово - 232 - 265
Полиэтилентерефталат - 265 - 327
Политетрафторэтилен - 327 - 400
13. Способ термогазохимического и силового воздействия на призабойную зону продуктивного пласта по пп. 2 и 12, отличающийся тем, что перед спуском в скважину продольные каналы твердотопливных блоков полностью или частично заполняют газом с повышенным значением показателя адиабаты, например ксеноном.12. The method of thermogasochemical and power impact on the bottom-hole zone of the reservoir according to claims. 2 and 10, characterized in that the sealing plugs of various materials are used in different temperature ranges corresponding to, o C:
Polyoxyethylene - 66-105
Low Density Polyethylene - 105 - 140
Polypropylene - 140 - 190
Polyvinyl fluoride - 190 - 232
Tin - 232 - 265
Polyethylene terephthalate - 265 - 327
Polytetrafluoroethylene - 327 - 400
13. The method of thermogasochemical and power impact on the bottomhole zone of the reservoir according to paragraphs. 2 and 12, characterized in that before the descent into the well, the longitudinal channels of the solid fuel blocks are completely or partially filled with gas with an increased value of the adiabatic index, for example, xenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU95110982A RU2110677C1 (en) | 1995-06-27 | 1995-06-27 | Method for thermogas-chemical and pressure treatment of bottom-hole zone of productive bed, and gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU95110982A RU2110677C1 (en) | 1995-06-27 | 1995-06-27 | Method for thermogas-chemical and pressure treatment of bottom-hole zone of productive bed, and gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU95110982A true RU95110982A (en) | 1997-07-10 |
| RU2110677C1 RU2110677C1 (en) | 1998-05-10 |
Family
ID=20169431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU95110982A RU2110677C1 (en) | 1995-06-27 | 1995-06-27 | Method for thermogas-chemical and pressure treatment of bottom-hole zone of productive bed, and gas generator |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2110677C1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148164C1 (en) * | 1998-06-15 | 2000-04-27 | Нуретдинов Язкар Карамович | Method of thermo-gas-chemical cleaning of bottom-hole formation zone |
| RU2156860C2 (en) * | 1998-11-20 | 2000-09-27 | Линецкий Александр Петрович | Method of increasing degree of oil and gas recovery and intensification of oil-well operation in oil fields |
| RU2151282C1 (en) * | 1999-02-08 | 2000-06-20 | Пермский завод им.С.М.Кирова | Device for heat-gas-chemical treatment of producing formation |
| RU2166078C1 (en) * | 1999-08-25 | 2001-04-27 | ПЕРМСКИЙ ЗАВОД им. С.М. КИРОВА | Impulse pressure generator for wells |
| RU2175059C2 (en) * | 1999-10-06 | 2001-10-20 | Открытое акционерное общество Всероссийский научно-исследовательский и проектно-конструкторский институт по использованию энергии взрыва в геофизике | Solid-fuel gas generator with controllable pressure pulse for stimulation of wells |
| RU2182656C2 (en) * | 2000-05-23 | 2002-05-20 | Волго-уральский центр научно-технических услуг "НЕЙТРОН" | Gear for thermal-gas-acidic treatment of productive pools |
| RU2197612C2 (en) * | 2000-09-04 | 2003-01-27 | Гудков Андрей Геннадьевич | Method of treating oil formation bottom-hole zone and device for method embodiment |
| RU2178072C1 (en) * | 2000-10-23 | 2002-01-10 | Падерин Михаил Григорьевич | Carrier-free sectional charge for formation gas-hydraulic stimulation |
| RU2187633C1 (en) * | 2001-08-28 | 2002-08-20 | Падерин Михаил Григорьевич | Method of gas-hydraulic stimulation of formation |
| RU2183741C1 (en) * | 2001-08-31 | 2002-06-20 | Падерин Михаил Григорьевич | Method of gas-hydraulic stimulation of formation |
| RU2237805C1 (en) * | 2003-12-03 | 2004-10-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method for treatment of face-adjacent well zone |
| RU2242590C1 (en) * | 2004-02-24 | 2004-12-20 | Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт по использованию энергии взрыва в геофизике" | Device for perforation of well and forming cracks in well-adjacent bed area |
| RU2282027C1 (en) * | 2004-12-16 | 2006-08-20 | Николай Михайлович Пелых | Combined well stimulation method |
| RU2291290C1 (en) * | 2005-07-14 | 2007-01-10 | Элеонора Моисеевна Кольцова | Gas generator for increasing debit of oil and gas wells and method for using said generator |
| RU2312984C1 (en) * | 2006-11-29 | 2007-12-20 | Геннадий Пантелеймонович Доманов | Gas generator for well |
| RU2339810C1 (en) * | 2007-03-02 | 2008-11-27 | Федеральное казенное предприятие (ФКП) "Пермский пороховой завод" | Gas generator on solid fuel for thermo-gas-chemical and vibrowave treatment of wells |
| RU2363840C1 (en) * | 2007-12-21 | 2009-08-10 | Государственное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) | Gas generator increasing yield of oil and gas wells |
-
1995
- 1995-06-27 RU RU95110982A patent/RU2110677C1/en active
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