CN104121004A - Method for modifying reservoir stratum by using ground detonation gas - Google Patents

Method for modifying reservoir stratum by using ground detonation gas Download PDF

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CN104121004A
CN104121004A CN201410337316.XA CN201410337316A CN104121004A CN 104121004 A CN104121004 A CN 104121004A CN 201410337316 A CN201410337316 A CN 201410337316A CN 104121004 A CN104121004 A CN 104121004A
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high energy
pressure
gas
control
proppant
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CN201410337316.XA
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CN104121004B (en
Inventor
崔春生
马铁华
祖静
裴东兴
范锦彪
姚舜才
刘帅
张红艳
李新娥
靳鸿
徐鹏
沈大伟
张瑜
梁志剑
杜红棉
谢锐
丁永红
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North University of China
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North University of China
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Abstract

The invention provides a method for modifying a reservoir stratum by using ground detonation gas, and belongs to the technical field of fracturing modification of oil gas reservoir stratums. The method is realized by equipment which adopts high-energy flow to drive a propping agent into an underground fracturing stratum. The equipment comprises a high-energy gas ejection mechanism, a jetting mechanism, a high-energy gas jet mixing mechanism, a measuring and control instrument and a guide pipeline, wherein the measuring and control instrument controls the high-energy gas ejection mechanism to eject high-energy gas, the jetting mechanism jets a jet stream, the high-energy gas and the jet stream form a mixed fracture medium in the mixing mechanism to enter an underground guide pipeline to reach a target rock stratum and aim at jet holes for jetting, the target rock stratum generates more than three cracks, and the propping agent enters the cracks to form support, so that oil gas exploitation and production are facilitated. The method doesn't depend on the water resource, has no pollution to the reservoir stratum and can be accurately operated and controlled on the ground, the fracturing scale is not limited, a new concept is provided for reservoir stratum modification, the operation is reliable the effect is good by using fracturing stratum equipment, and the method and the equipment are worth of using and popularizing.

Description

Adopt detonation gas in ground to carry out the method for reservoir reconstruction
Technical field
The method that employing disclosed by the invention ground detonation gas carries out reservoir reconstruction belongs to oil and gas reservoir fracture technology field, and what be specifically related to is a kind of special method that adopts ground to produce high energy air stream drives proppant fracturing stratum.
Background technology
Fracturing technique be a kind of for reservoir reconstruction to improve the professional technique of output.The method that adopts detonation gas in ground to carry out reservoir reconstruction is a kind of brand-new fracturing process, and the equipment that this fracturing process imports underground fracture stratum based on high energy air stream drives proppant is realized.The method that adopts detonation gas in ground to carry out reservoir reconstruction has: 1. accurately real-time control fracturing pressure of the ground of hydraulic fracturing method; 2. can carry proppant and make in formation crack, target rock stratum, proppant can enter crack fracture and form support, strengthens the advantage of flow conductivity; 3. avoid fracturing can only form in target rock stratum a larger major fracture that is subject to geostatic stress control simultaneously, made the communication area of target rock stratum and production casing large not, be unfavorable for the drawback of a large amount of exploitations of ore bed resource.In addition because the method that adopts ground detonation gas to carry out reservoir reconstruction is to use high energy gas to drive proppant to form to mix pressure break medium reservoir is carried out to pressure break, avoid the wastes and pollution of a large amount of water resource.
It is fast that the method that adopts detonation gas in ground to carry out reservoir reconstruction has been drawn the pressure rise of the process for fracturing energetic gas based on underground fracture bullet, can form and not be subject to many of geostatic stress control compared with large fracture along preforation tunnel at reservoir, link up more dry, thereby increase the advantage of Oil/gas Well reservoir mineral resources and production casing communication area.Simultaneously, because carry out on the ground that is created in that adopts detonation gas in ground to carry out high energy gas in the method for reservoir reconstruction, pressure break scale can be controlled according to actual needs, is not subject to the impact of down-hole small space.
The method advantage that employing of the present invention ground detonation gas carries out reservoir reconstruction is a lot, can accurately control high energy air-flow, proppant etc., and this constructs a kind of special method of novel fracturing stratum is provided for well fracturing.
Summary of the invention
The object of the invention is: provide this employing ground detonation gas to carry out the method that reservoir changes to society,
The equipment that this method adopts high energy air stream drives proppant to import underground fracture stratum is realized, and this equipment is to adopt ground to produce the special equipment of high energy air stream drives proppant fracturing stratum.
Technical scheme of the present invention is such: the method that this employing ground detonation gas carries out reservoir reconstruction adopts high energy air stream drives proppant to import the equipment realization on underground fracture stratum, the equipment that described high energy air stream drives proppant imports underground fracture stratum erupts mechanism by high energy gas, jet mechanism, high energy gas and jet mixing mechanism, measurement and control instrument, ground and down-hole guide duct combine, technical characterstic is: the high energy gas eruption mechanism of the equipment of the fracturing stratum of described employing, jet mechanism, high energy gas and jet mixing mechanism and measurement and control instrument all arrange on the ground, by measurement and control instrument control high energy gas eruption mechanism igniting eruption high energy gas, control jet mechanism jetting stream, and high energy gas and the jet of controlling eruption high energy gas with in jet mixing mechanism, act on mutually generation and mix pressure break medium and enter down-hole guide duct, in the guide duct of down-hole, mixing the formation of pressure break medium suppresses high energy containing proppant air-flow and arrives fracturing stratum position, the screen casing mouth of down-hole guide duct is aimed at the preforation tunnel of pit shaft target rock stratum, measurement and control instrument passes through temperature, pressure, flow, the parameter of microseism sensor real-time testing fracturing process, Based Intelligent Control high energy air stream drives proppant sprays to preforation tunnel, make target rock stratum produce 3 and above compared with large fracture, and make proppant enter crack fracture formation support, increase the communication area of target rock stratum and pit shaft, be beneficial to exploitation and the production of oil gas.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: described measurement and control instrument is made up of electronic control circuit and software systems and Instrument shell, and wherein electronic control circuit comprises: main control microcomputer or microprocessor, temperature pick up, pressure sensor, flow transmitter, microseism sensor, signal conditioning circuit, signal amplification circuit, mould/number conversion circuit, data storage circuitry, telecommunication circuit, control circuit, interface circuit.Described temperature pick up, pressure sensor, flow transmitter, microseism sensor is all arranged on ground or ground guide duct, is the temperature of mixing pressure break medium in the guide duct of position, examination and controlling target rock stratum, pressure, information such as flow and suppress high energy and spray the collection terminal of the information such as microseism of fracturing stratum containing proppant air-flow to preforation tunnel, these information gathering ends connect respectively signal conditioning circuit, signal conditioning circuit connects signal amplification circuit, signal amplification circuit connects mould/number conversion circuit, mould/number conversion circuit connects data storage circuitry, data storage circuitry, telecommunication circuit, control circuit, interface circuit all connects and is controlled by main control microcomputer or microprocessor, telecommunication circuit by interface circuit with wired mode or by antenna with wireless mode transmit this equipment all examination and controlling information give need department or position, control circuit to connect respectively by interface circuit and controls be distributed in high energy gas erupt mechanism, jet mechanism, the mixed organization of high energy gas and jet, the control execution unit of guide duct, assembly, element action.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: described high energy gas eruption mechanism is by high energy gas combustion chamber and igniter plug, oxidant feed pipe and valve, reducing agent feed pipe and valve, catalyst charge pipe and valve, the composition such as additive feed pipe and valve, each charging aperture of combustion chamber is connected respectively oxidant storage tank by each feed pipe with valve, reducing agent storage tank, catalyzer storage tank, additive storage tank, the high energy gas vent of eruption of combustion chamber connects the high energy gas entrance of high energy gas and jet mixing mechanism, igniter plug is arranged in combustion chamber and connects controlled with measurement and control instrument interface circuit, described oxidant selects to adopt nitrogen tetraoxide, or ammonium nitrate, or nitric acid, or red fuming nitric acid, or liquid oxygen, or liquid fluorine, or H 2o 2, or their combination, it is that above-mentioned various component is by the pro rata combination of component that described oxidant is selected the combination of the various components that adopt.Described reducing agent selects to adopt liquid hydrogen or alcohol or hydrazine or methyl hydrazine or uns-dimethylhydrazine or aerozine-50 or kerosene or gasoline or furfuryl alcohol or all kinds of alcohol alkane or aniline or ammonia or boron hydride or glycerine or their combination, and it is that above-mentioned various component is by the pro rata combination of component that described reducing agent is selected the combination of the various components that adopt.Described catalyzer selects to adopt metal or slaine or iron chloride hydrate etc.Described additive selects to adopt H 2o or ammonia or methyl alcohol or furfuryl alcohol or aluminium or beryllium or lithium etc.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: described jet mechanism by proppant storage tank, discharging control valve, liquid tank, solid-liquid blender, liquid booster pump, high pressure liquid valve, high pressure spray is first-class forms, wherein solid-liquid mixer entrance connects respectively proppant storage tank, liquid booster pump, liquid booster pump connects liquid tank, solid-liquid mixer outlet connects high-pressure nozzle, high-pressure nozzle jetting stream, described proppant is selected to adopt quartz sand or ceramic particle, or coal gangue particle; The liquid selective of described jet is easy to mixing, carries and transport the liquid of proppant, adopts stable water or the aqueous solution of chemical characteristic as selected.The described aqueous solution is aqueous metal salt, for example, be sodium chloride solution or Klorvess Liquid etc.Described high pressure liquid valve is arranged between liquid booster pump and solid-liquid blender, can pass through its switch of high pressure liquid valve control end control.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, be characterised in that: described high energy gas and jet mixing mechanism are mainly to form by blender, the entrance of blender connects respectively high-pressure nozzle outlet and the high energy gas eruption outlet of jet, and the outlet of blender is connected with down-hole guide duct entrance; Described down-hole guide duct selects to adopt high temperature resistant, high-intensity metal or other substitution material to do guide duct, and guide duct adopts oil pipe, drilling rod as selected, and down-hole guide duct end forms screen casing mouth.On its tube wall of screen casing mouth of described guide duct, be uniformly distributed circular eyelet and make the inside and outside communication of screen casing.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: the fracturing process described in a. is subject to measurement and control instrument Based Intelligent Control, is to change to regulate and control the each fracturing parameter value of high energy air stream drives proppant according to pressure, temperature, flow, the microseism parameter of measurement and control instrument test.Described each fracturing parameter has temperature, flow, the pressure and other parameters of blend pressure medium.B. described fracturing process, by measurement and control instrument to mixing pressure break pressure medium value size, pressure rising time, gas temperature, regulating and controlling containing supporting dosimetry parameter, makes to suppress high energy and produces pulsating press process or continuous process or multi-platform press process containing proppant air-flow.Described pulsating pressure is generation and the speed of controlling high energy gas by ground, make down-hole pressure rise to rapidly peak value, make target rock stratum form crack along preforation tunnel, then reducing burning velocity declines down-hole pressure, finally again produce high energy gas by the control of ground installation and make down-hole pressure again arrive peaking, be so concatenated to form pulsating press process.Described continuous process is the accurate control by ground installation, make high energy gas eruption mechanism produce a certain amount of high energy gas with certain speed, make down-hole pressure reach specific value, then along with formation crack, target rock stratum absorption pressure, control in real time high energy gas eruption mechanism generation high energy gas and supplement to maintain particular pressure value.Described multi-platform press process is accurately to control high energy gas eruption mechanism by ground, make it produce a certain amount of high energy gas with certain speed, make down-hole pressure reach certain value, make down-hole pressure reach new specific value by controlling a certain amount of high energy gas of high energy gas eruption mechanism continuation generation after this force value maintenance certain hour, so repeatedly can form multi-platform press process.The force value of mixing pressure break medium is chosen as 1.5 ~ 3.5 times of fracture pressure of rock stratum, and rate of pressure rise is greater than 2MPa/ms.The fracture pressure value of described rock stratum is 20 ~ 70MPa.C. described fracturing process regulates and controls by measurement and control instrument the temperature that jet size is mixed pressure break medium with the ratio of high energy gas with regulation and control.Utilize high energy gas to make jet vaporization inhale thermal property cooling, suppress high energy impact on guide duct intensity containing the high temperature of proppant air-flow to reduce to mix pressure break medium.D. the proppant of described proppant storage box device different-grain diameter, in fracturing process different phase by measurement and control instrument adjustment, adopt or add proppants dissimilar, different sizes.Described dissimilarly refer to that haydite or sand or gangue etc. are dissimilar.The proppant of different sizes refers to sand, haydite or the coal gangue particle of 12-18 order or 12-20 order or 16-20 order or 20-40 order or the different sizes of 30-50 order.E. the equipment of this described fracturing stratum has safe setting, and this arranges safely the pressure relief valve being arranged in the guide duct of ground, and when ground guide duct internal pressure is excessive while exceeding secure threshold, pressure relief valve is opened by measurement and control instrument control.There is this this equipment of pressure relief valve meeting safer.F. the target rock stratum section of described fracturing process applies packer up and down, only has the section effect of being stressed of target rock stratum.There is this setting to make this equipment safer energy-conservation again.G. the target preforation tunnel of described fracturing process target rock stratum is that on the borehole wall of target rock stratum, perforation launches eyelet or the duct of hydraulic slotted liner technique formation or the hole slot that cutting cartridge forms worn, and they have formed the passage that mixes pressure break medium target approach rock stratum.These eyelets, duct, hole slot are all to mix pressure break medium target approach rock stratum to implement the passage of pressure break, particularly the passage of proppant target approach rock stratum wherein.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: the measurement and control instrument described in a. is provided with control end and data acquisition end, its data acquisition end respectively with temperature pick up, pressure sensor, flow transmitter, microseism sensor connects, its control end respectively with igniter plug control end, oxidizer valve gate control end, reducing agent valve control end, catalyst valve gate control end, supplement valve gate control end, the liquid booster pump switch of solid-liquid blender, proppant material inlet valve, proppant discharge valve, gas unidirectional threshold switch is connected, measurement and control instrument is by receiving, analyze, treatment temperature, pressure, flow, the data of microseism sensor collection judge the running status of current complete equipment, to realize the real-time intelligent control to the each stage running of fracturing process.Described cooling gas check valve is that one makes gas along inlet flow, export the device that medium but cannot reflux, and this device, without external switch control, itself possesses the attribute of one-way conduction fluid.B. described measurement and control instrument is according to temperature, pressure, flow, the parameter of microseism sensor Real-time Collection is to complete equipment Based Intelligent Control, according to the pressure of measurement and control instrument test, temperature, flow, microseism parameter changes the each fracturing parameter of regulation and control high energy air stream drives proppant, the described each fracturing parameter of high energy air stream drives proppant refers to the temperature of mixing pressure break medium, flow, pressure, the parameters such as flow velocity, suppress gas production and the flow of high energy containing proppant air-flow by measurement and control instrument to mixing pressure break medium, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series regulates and controls, to produce pulsating press process, or continuous process, or multi-platform press process, the various fracturing effects of realize target rock stratum fracturing engineering demand.Described various fracturing effects are that the target rock stratum pressure break under different geological environments goes out 3 and above compared with large fracture, to increase the communication area of mineral resources and production casing.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: the high energy gas eruption mechanism described in a. has oxidant, reducing agent, catalyzer, four charging apertures of additive, these charging apertures connect respectively booster pump and connect each charging storage tank again, measurement and control instrument is by accurately controlling four material inlet valves and booster pump thereof respectively, make four kinds of fuel spray in proportion high energy gas combustion chamber, combustion chamber is and is beneficial to the bell of the abundant mixed combustion of fluid, indoor have an igniter plug that is subject to measurement and control instrument control, Inner Wall of Combustion Chamber arranges heat-barrier material, outside combustion chamber, be surrounded with circulating water cooling pipeline, take away the unnecessary heat in combustion chamber.B. or, described four kinds of fuel of oxidant, reducing agent, catalyzer, additive spray in proportion and after mix high energy gas combustion chamber, do not need the igniter plug igniting can self-burning, this situation, high energy gas combustion chamber can not arrange igniter plug and control thereof.C. regulate and control liquid and proppant proportioning and jet jet velocity in high energy gas combustion chamber each fuel element charging dosage and solid-liquid blender jet by measurement and control instrument, and then the ratio of regulation and control high energy gas and jet, the fracturing process and the result that need to produce fracturing engineering to regulate and control to mix pressure, temperature, flow, the energy of pressure break medium.The fracturing process that described fracturing engineering needs is pulsating press process, continuous process, multi-platform press process, pressure break result is for making target rock stratum form 3 and above compared with large fracture by implementing pressure break, and make proppant enter crack fracture to form and support, to increase the earial drainage area between fluid and production casing in rock stratum.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: the liquid inlet of the solid-liquid blender described in a. connects liquid tank by liquid booster pump, the proppant entrance of solid-liquid blender connects proppant storage tank by discharging control valve, liquid is extracted out it by liquid booster pump from storage tank, form highly pressurised liquid stream by proppant discharging opening and carry proppant and enter the mixing of solid-liquid blender, and form jet by high-pressure nozzle, in the blender of high energy gas and jet, jet and high energy gas mix and form and mix pressure break medium, enter down-hole guide duct, regulate and control discharging control valve and high pressure liquid valve to control charge proportion and the flow thereof of proppant and liquid by measurement and control instrument, and then the ratio of regulation and control high energy gas and jet and mix pressure break medium and suppress gas production and the flow that high energy contains proppant air-flow, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series, to produce pulsating press process, or continuous process, or multi-platform press process, the various fracturing effects of realize target rock stratum fracturing engineering demand.B. the high-pressure nozzle of described solid-liquid blender has numerous thin spray orifices, thin spray orifice sprays thin jet, fully mix with high energy gas, after this jet mixes with high energy gas with environment temperature, heat absorption is vaporized into gas, increase high temperature and high pressure gas total amount and make to mix rear gas temperature and reduce, utilize high energy gas to make jet vaporization inhale thermal property cooling, suppress high energy impact on guide duct intensity containing the high temperature of proppant air-flow to reduce to mix pressure break medium, high energy gas flow temperature is controlled in 800 degrees Celsius, become suppress high energy gas and proppant mix pressure break medium.Its pore aperture of the thin spray orifice that described high-pressure nozzle has is 1 ~ 3mm.
Carry out the method for reservoir reconstruction according to above-described employing ground detonation gas, technical characterstic also has: adopt and have certain pressure, temperature, the high energy gas of suppressing of flow and flow velocity passes through guide duct with the pressure break medium that mixes of proppant, borehole wall preforation tunnel target approach rock stratum, utilize the pressure that mixes pressure break medium to make rock stratum cracking form 3 and above compared with large fracture and numerous microfissure, mixing pressure break medium contacts with rock stratum with mechanism and can to rock stratum and heat loss, the volume of gas be reduced because of leak-off, thereby will mix proppants settle down in pressure break medium in crack, the current by pass of formation fluid and pit shaft is set up in the support that forms fracture, prevent closing up of cracks.Here it is, and equipment of the present invention adopts advantage and the superior function thereof of the technology essential factor of high energy air stream drives proppant fracturing stratum.
The method advantage that the present invention adopts detonation gas in ground to carry out reservoir reconstruction has: 1. the equipment that method of the present invention is used is reliable, and the course of work does not rely on water resource.2. method of the present invention adopts gas pressure break, and the row's of returning time is short, and reservoir is not injured, and does not pollute stratum.3. method of the present invention adopts gas pressure break, and its high energy gas generating mechanism, all on ground, is not affected by down-hole narrow space and explosive payload etc., thereby makes pressure break scale unrestricted.4. method of the present invention produces oxidant and reducing agent and the product cleanliness without any pollution thereof that high energy gas uses, and the oxidant that method of the present invention is used and reducing agent react needs specified conditions, normal temperature and pressure and do not have not react under the environment of catalyzer, transport and storage safe.5. method of the present invention is used oxidant, reducing agent can adopt general universal commodity, easily obtain, as reducing agent can be ammonium nitrate, glycerine, kerosene etc., oxidant can be the low prices such as potassium permanganate, hydrogen peroxide, postassium hypochlorite, is not subject to dangerous material control.6. method of the present invention is used ground observing and controlling instrument accurately to control press process, efficiency is high, high energy gas produces mechanism can generate rapidly a large amount of high energy gas, concentration of energy, the pressure rise time is fast, at 1ms～10ms, can form the larger crack that is not subject to geostatic stress or the fracturing fracture that is subject to geostatic stress control.7. because the high energy gas of the inventive method is produced by ground, can accurately be controlled by ground observing and controlling instrument, so can control high energy gas, down-hole be formed to pulsating pressure break, strengthen fracturing effect.8. in the inventive method, stirring into the liquid of proppant suspension with proppant can be for water, but to water resource require lowly, and consumption is little, can not cause difficulty to transport.The device value that this employing ground detonation gas carries out the method for reservoir reconstruction and the fracturing stratum of use thereof must adopt and promote.
Figure of description of the present invention has 8 width:
Fig. 1 is the outfit of equipment structure chart that high energy air stream drives proppant imports underground fracture stratum;
Fig. 2 is the device structure block diagram that high energy air stream drives proppant imports underground fracture stratum;
Fig. 3 is jet machine composition;
Fig. 4 is high energy gas eruption mechanism map;
Fig. 5 is high-pressure nozzle figure, and wherein: a figure is left side view, b figure is elevation;
Fig. 6 is measurement and control instrument cut-away view;
Fig. 7 is the equipment workflow diagram that high energy air stream drives proppant imports underground fracture stratum;
Fig. 8 is measurement and control instrument workflow diagram.
In each figure, adopted unified label, same object is used same label in each figure.In each figure:
1. high energy gas eruption mechanism; 2. injector nozzle temperature sensor; 3. nozzle flow sensor; 4. pressure relief valve; 5. ground guide duct; 6. oxidizer valve gate control end; 7. reducing agent valve control end; 8. catalyst valve gate control end; 9. supplement valve gate control end; 10. measurement and control instrument; 11. cooling gas check valves; 12. mixing temperature sensors; 13. high-pressure nozzles; 14. wellhead flow sensors; 15. annular pressure sensors; 16. microseism sensors; 17. igniter plug control ends; 18. nozzle temperature test leads; 19. nozzle flow test leads; 20. pressure relief valve control ends;
21. pipeline pressure test leads; 22. well head flow rate test ends; 23. mix pressure break medium; 24. screen casing mouths; 25. bottom plugs; 26. lower packets; 27. target rock stratum; 28. preforation tunnels; 29. upper packers; 30. down-hole guide duct; 31. stratum; 32. wellhead blowout preventors; 33. pipe pressure sensors; 34. high energy gas and jet mixing mechanism; 35. jet mechanisms; 36. discharging control valve control ends; 37. high pressure liquid valve control ends; 38. liquid booster pump control valves; 39. mixing temperature sensor test ends; 40. annular pressure test leads; 41. microseism test leads; 42. solid-liquid blenders; 43. discharging control valves; 44. liquid non-return valves; 45. high pressure liquid valves; 46. liquid booster pumps; 47. liquid tanks; 48. proppant storage tanks; 49. additive feed pipe; 50. additives; 51. supplement valve; 52. igniter plugs; 53. radiators; 54. cooling fluids; 55. catalyzer; 56. catalyst charge pipes; 57. reducing agent feed pipes; 58. reducing agent valves; 59. reducing agents; 60. oxidizer valves; 61. oxidants; 62. oxidant feed pipes; 63. combustion chambers; 64. isolation layers; 65. catalyst valves; 66. flange screws; 67. jets; 68. shower nozzle eyelets; 69. main control modules; 70. communication serial ports; 71. display screens; 72. dc sources; 73. AC powers; 74. constructions start; 75. pairs of measurement and control instrument programmings; 76. pipeline assemblings; 77. flow transmitters and unidirectional, pressure relief valve installation; 78. assembling jet mechanisms; 79. assembling high energy gas eruption mechanisms; 80. temperature, pressure sensor are installed; 81. connect instrument test end; 82. connect instrument control end; 83. power on to instrument; 84. spray the assembling of high energy gas raw material; 85. pressure testing igniting; 86. monitoring annular pressures; 87. open pressure relief valve; 88. manifold pressures are down to atmospheric pressure; Electricity under 89. instruments; 90. investigation equipment faults; 91. open the each valve of high energy gas eruption mechanism's charging; 92. pressure break igniting; 93. monitoring pipeline pressures; 94. open pressure relief valve pressure release to threshold range; 95. monitoring pipe channel temps; 96. spray coolings; 97. monitorings mix pressure break rate-of flow; 98. pipeline pressure pressure releases are to atmospheric pressure; 99. detaching equipments; 100. have constructed; 101. instruments are started working; 102. instruments receive programming value; 103. open instrument corresponding controling end; The raw material of quantitative high energy gas is sprayed in 104. instrument controls; 105. open igniter plug control end; 106. monitoring annular pressure test leads; 107. open the each control end of high energy gas raw material; 108. monitoring pipeline pressure test ends; 109. instrument controlled discharge pressure; 110. monitoring pipe channel temp test leads; 111. instrument control spray coolings; 112. monitorings mix pressure break rate-of flow test lead; 113. open pressure relief valve control end; 114. monitoring pipeline pressure test end to readings are atmospheric pressure; 115. close instrument.
Brief description of the drawings
Detailed description of the invention
The method non-limiting examples that employing of the present invention ground detonation gas carries out reservoir reconstruction is as follows:
Embodiment mono-. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The method that the employing ground detonation gas of this example carries out reservoir reconstruction adopts the equipment on high energy air stream drives proppant importing underground fracture stratum to realize, this equipment is a kind of special equipment that adopts high energy air stream drives proppant fracturing stratum, this equipment concrete structure is combined and is illustrated by Fig. 1～Fig. 8, Fig. 1 is the outfit of equipment structure chart that high energy air stream drives proppant imports underground fracture stratum, Fig. 2 is the device structure block diagram that high energy air stream drives proppant imports underground fracture stratum, in two figure: the 1st, high energy gas eruption mechanism, the 2nd, injector nozzle temperature sensor, the 3rd, nozzle flow sensor, the 4th, pressure relief valve, the 5th, ground guide duct, the 6th, oxidizer valve gate control end, the 7th, reducing agent valve control end, the 8th, catalyst valve gate control end, the 9th, supplement valve gate control end, the 10th, measurement and control instrument, the 11st, cooling gas check valve, the 12nd, mixing temperature sensor, the 13rd, high-pressure nozzle, the 14th, wellhead flow sensor, the 15th, annular pressure sensor, the 16th, microseism sensor, the 17th, igniter plug control end, the 18th, nozzle temperature test lead, the 19th, nozzle flow test lead, the 20th, pressure relief valve control end, the 21st, pipeline pressure test lead, the 22nd, well head flow rate test end, the 23rd, mix pressure break medium, the 24th, screen casing mouth, the 25th, bottom plug, the 26th, lower packet, the 27th, target rock stratum, the 28th, preforation tunnel, the 29th, upper packer, the 30th, down-hole guide duct, the 31st, stratum, the 32nd, wellhead blowout preventor, the 33rd, pipe pressure sensor, the 34th, high energy gas and jet mixing mechanism, the 35th, jet mechanism, the 36th, discharging control valve control end, the 37th, high pressure liquid valve control end, the 38th, liquid booster pump control valve, the 39th, mixing temperature sensor test end, the 40th, annular pressure test lead, the 41st, microseism test lead.As shown in two figure, the equipment of this example fracturing stratum is formed by combining by high energy gas eruption mechanism 1, jet mechanism 35, high energy gas and jet mixing mechanism 34, measurement and control instrument 10, ground guide duct 5 and down-hole guide duct 30.This routine high energy gas eruption mechanism 1, jet mechanism 35, high energy gas and jet mixing mechanism 34 and measurement and control instrument 10 all arrange on the ground, measurement and control instrument 10 is controlled high energy gas eruption mechanism 1 igniting eruption high energy gas, control jet mechanism 35 jetting streams, and high energy gas and the jet of controlling eruption high energy gas with in jet mixing mechanism 34, act on mutually generation and mix pressure break medium 23 and enter down-hole guide duct 30, in down-hole guide duct 30, mix pressure break medium and arrive fracturing stratum position, the screen casing mouth 24 of down-hole guide duct 30 is aimed at the preforation tunnel 28 of the target rock stratum 27 of pit shaft, measurement and control instrument 10 is by temperature pick up 2, 12 etc., pressure sensor 15, 33 etc., flow transmitter 3, 14 etc., the parameter of microseism sensor 16 fracturing process such as real-time testing such as grade, Based Intelligent Control high energy mixes pressure break medium 23 and sprays to preforation tunnel 28, make target rock stratum 27 produce nearly 3 and above compared with large fracture, and make proppant enter crack fracture formation support, increase the communication area of target rock stratum 27 and pit shaft, be beneficial to exploitation and the production of oil gas.This routine measurement and control instrument 10 is made up of electronic control circuit and software systems and Instrument shell etc., and wherein electronic control circuit comprises: main control microcomputer or microprocessor, temperature pick up, pressure sensor, flow transmitter, microseism sensor, signal conditioning circuit, signal amplification circuit, mould/number conversion circuit, data storage circuitry, telecommunication circuit, control circuit, interface circuit.The temperature pick up 2 that this is routine, 12 etc., pressure sensor 15, 33 etc., flow transmitter 3, 14 etc., microseism sensor 16 grades are all arranged on ground or ground guide duct, are the temperature of mixing pressure break medium 23 in the 27 position guide duct 30 of examination and controlling target rock stratum, pressure, information such as flow and suppress high energy and spray the collection terminal of the information such as microseism of fracturing process containing proppant air-flow to preforation tunnel 28, these information gathering ends connect respectively signal conditioning circuit, signal conditioning circuit connects signal amplification circuit, signal amplification circuit connects mould/number conversion circuit, mould/number conversion circuit connects data storage circuitry, data storage circuitry, telecommunication circuit, control circuit, interface circuit all connects and is controlled by main control microcomputer, and this routine main control microcomputer selects to adopt ThinkPad X240, or ThinkPad T440, or the microcomputer of Pavilion M4-1009TX model, telecommunication circuit by interface circuit with wired mode or by antenna with wireless mode transmit this equipment all examination and controlling information give need department or position, control circuit to connect respectively by interface circuit and controls be distributed in high energy gas erupt mechanism 1, jet mechanism 35, the mixed organization 34 of high energy gas and jet, the control execution unit of guide duct 30 grades, assembly, element action.This routine measurement and control instrument 10 is provided with control end and data acquisition end, Fig. 6 illustrates measurement and control instrument 10 cut-away views, as shown in Figure 6, its control end has respectively igniter plug control end 17, oxidizer valve gate control end 6, reducing agent valve control end 7, catalyst valve gate control end 8, supplement valve gate control end 9, the liquid booster pump switch of solid-liquid blender, proppant material inlet valve, proppant discharge valve, gas unidirectional threshold switch, nozzle temperature test lead 18, nozzle flow test lead 19, pressure relief valve control end 20, pipeline pressure test lead 21, well head flow rate test end 22, discharging control valve control end 36, high pressure liquid valve control end 37, liquid booster pump control valve 38, mixing temperature sensor test end 39, annular pressure test lead 40, microseism test lead 41 etc.Its data acquisition end respectively with temperature pick up 2,12 etc., pressure sensor 15,33 etc., flow transmitter 3,14 etc., 16 connections such as grade of microseism sensor.In Fig. 6, also illustrate: main control module 69, communication serial port 70, display screen 71, dc source 72 and AC power 73 etc.This routine measurement and control instrument 10 judges the running status of current complete equipment by the data of reception, analysis, treatment temperature, pressure, flow, the collection of microseism sensor, to realize the real-time intelligent control to the each stage running of fracturing process.This routine measurement and control instrument 10 is according to temperature, pressure, flow, the parameter of microseism sensor Real-time Collection is to complete equipment Based Intelligent Control, the pressure of testing according to measurement and control instrument 10, temperature, flow, microseism parameter changes the each fracturing parameter of regulation and control high energy air stream drives proppant, this routine each fracturing parameter of high energy air stream drives proppant refers to the temperature of mixing pressure break medium 23, flow, pressure, the parameters such as flow velocity, suppress gas production and the flow of high energy containing proppant air-flow by measurement and control instrument 10 to mixing pressure break medium 23, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series regulates and controls, to produce pulsating press process, or continuous process, or multi-platform press process, the various fracturing effects of realize target rock stratum 27 fracturing engineering demands.The various fracturing effects of this example are that target rock stratum 27 pressure breaks under different geological environments go out 3 and above slabbing significantly seam, to increase the communication area of mineral resources and production casing.Fig. 8 illustrates measurement and control instrument 10 workflow diagrams, in Fig. 8: the 101st, instrument is started working, the 102nd, instrument receives programming value, the 103rd, open instrument corresponding controling end, the 104th, the raw material of quantitative high energy gas is sprayed in instrument control, the 105th, open igniter plug control end, the 106th, monitoring annular pressure test lead, the 107th, open the each control end of high energy gas raw material, the 108th, monitoring pipeline pressure test end, the 109th, instrument controlled discharge pressure, the 110th, monitoring pipe channel temp test lead, the 111st, instrument control spray cooling, the 112nd, monitoring mixes pressure break rate-of flow test lead, the 113rd, open pressure relief valve control end, the 114th, monitoring pipeline pressure test end to reading is atmospheric pressure, the 115th, close instrument.Fig. 4 illustrates this routine high energy gas eruption mechanism map, as shown in Figure 4, this routine high energy gas eruption mechanism 1 is by high energy gas combustion chamber 63 and igniter plug 52 and igniter plug control end 17, oxidant 61, feed pipe 62, valve 60 and oxidizer valve gate control end 6, reducing agent 59, feed pipe 57, valve 58 and reducing agent valve control end 7, catalyzer 55, feed pipe 56, valve 65 and catalyst valve gate control end 8, the compositions such as additive 50, feed pipe 49, valve 51 and supplement valve gate control end 9.This routine high energy gas eruption mechanism 1 has oxidant 61, reducing agent 59, catalyzer 55, 50 4 charging apertures of additive, these charging apertures connect respectively booster pump and connect each charging storage tank again, measurement and control instrument 10 passes through respectively to four material inlet valves 60, 58, 65, 51 grades and booster pump thereof are accurately controlled, make four kinds of fuel spray in proportion high energy gas combustion chamber 63, each charging aperture of combustion chamber 63 is connected respectively oxidant storage tank by each feed pipe with valve, reducing agent storage tank, catalyzer storage tank, additive storage tank, the high energy gas vent of eruption of combustion chamber 63 connects the high energy gas entrance of high energy gas and jet mixing mechanism, igniter plug 52 is arranged in combustion chamber 63 and connects controlled with measurement and control instrument 10 interface circuits, combustion chamber 63 is and is beneficial to the bell of the abundant mixed combustion of fluid, indoor have an igniter plug 52 that controlled by measurement and control instrument 10, combustion chamber 63 inwalls arrange the isolation layer 64 of heat-barrier material, combustion chamber 63 is outer has radiator 53 to be surrounded with recirculated water (being cooling fluid 54) cooling pipeline, take away the unnecessary heat in combustion chamber 63.This routine oxidant selects to adopt nitrogen tetraoxide, and this routine reducing agent selects to adopt liquid hydrogen, and this routine catalyzer is selected to adopt metal, and as iron, cobalt, nickel, copper etc., this routine additive selects to adopt H 2o.Regulate and control liquid and proppant proportioning and jet jet velocity in high energy gas combustion chamber 63 each fuel element charging dosage and solid-liquid blender 42 jets by measurement and control instrument 10, and then the ratio of regulation and control high energy gas and jet, the fracturing process and the result that need to produce fracturing engineering to regulate and control to mix pressure, temperature, flow, the energy of pressure break medium 23.The fracturing process that described fracturing engineering needs is pulsating press process, continuous process, multi-platform press process, pressure break result is for making target rock stratum form 3 and above compared with large fracture by implementing pressure break, and make proppant enter crack fracture to form and support, to increase the earial drainage area between fluid and production casing in rock stratum.Fig. 3 illustrates jet mechanism 35 structure charts that this is routine, as shown in Figure 3, this routine jet mechanism 35 is made up of with high pressure liquid valve control end 37, high-pressure nozzle 13 etc. with liquid booster pump control valve 38, high pressure liquid valve 45 with discharging control valve control end 36, liquid tank 47, solid-liquid blender 42, liquid non-return valve 44, liquid booster pump 46 proppant storage tank 48, discharging control valve 43.Wherein solid-liquid blender 42 entrances connect respectively proppant storage tank 48, liquid booster pump 46, liquid booster pump 46 connects liquid tank 47,42 outlets of solid-liquid blender connect high-pressure nozzle 13, high-pressure nozzle 13 jetting streams, and this routine proppant selects to adopt quartz sand.The liquid selective of this routine jet is easy to mixing, carries and transport the liquid of proppant, adopts the stable water of chemical characteristic as selected.This example high pressure liquid valve 45 is arranged between liquid booster pump 46 and solid-liquid blender 42, can pass through high pressure liquid valve 45 its switches of control end control.The liquid inlet of this routine solid-liquid blender 42 connects liquid tank 47 by liquid booster pump 46, the proppant entrance of solid-liquid blender 42 connects proppant storage tank 48 by discharging control valve 43, liquid is extracted out it by liquid booster pump 46 from storage tank 47, form highly pressurised liquid stream by proppant discharging opening and carry proppant and enter solid-liquid blender 42 and mix, and form jet by high-pressure nozzle 13, in the blender of high energy gas and jet, jet and high energy gas mix and form and mix pressure break medium 23, enter down-hole guide duct 30, regulate and control discharging control valve 43 and high pressure liquid valve 45 to control charge proportion and the flow thereof of proppant and liquid by measurement and control instrument 10, and then the ratio of regulation and control high energy gas and jet and mix pressure break medium 23 and suppress gas production and the flow that high energy contains proppant air-flow, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series, to produce pulsating press process, or continuous process, or multi-platform press process, realize the various fracturing effects of pressure break target rock stratum 27 fracturing engineering demands.The high-pressure nozzle 13 of this routine solid-liquid blender 42 has numerous thin spray orifices, and Fig. 5 illustrates the structure chart of this routine high-pressure nozzle 13, wherein: a figure is left side view, and b figure is elevation, and in Fig. 5: flange screw 66, jet 67, shower nozzle eyelet 68.Thin spray orifice sprays thin jet, fully mix with high energy gas, after this jet 67 mixes with high energy gas with environment temperature, heat absorption is vaporized into gas, increase high temperature and high pressure gas total amount and make to mix rear gas temperature and reduce, utilize high energy gas to make jet vaporization inhale thermal property cooling, suppress high energy impact on guide duct 30 intensity containing the high temperature of proppant air-flow to reduce to mix pressure break medium 23, high energy gas flow temperature is controlled in 800 degrees Celsius, become suppress high energy gas and proppant mix pressure break medium 23.Its pore aperture of thin spray orifice that this routine high-pressure nozzle 13 has is 1mm.The high energy gas that this is routine and jet mixing mechanism are mainly to form by blender, and the entrance of blender connects respectively outlet and the high energy gas eruption outlet of the high-pressure nozzle 13 of jet, and the outlet of blender is connected with the entrance of down-hole guide duct 30.This routine down-hole guide duct 30 selects to adopt high temperature resistant, high-intensity metal or other substitution material to do guide duct, and guide duct 30 adopts oil pipe as selected, and guide duct 30 ends in down-hole form screen casing mouth 24.On screen casing mouth 24 its tube walls of this example guide duct 30, be uniformly distributed circular eyelet and make the inside and outside communication of screen casing.This routine fracturing process is subject to measurement and control instrument 10 Based Intelligent Control, is that pressure, temperature, flow, the microseism parameter of testing according to measurement and control instrument 10 changes to regulate and control the each fracturing parameter value of high energy air stream drives proppant.Each fracturing parameter of this example has temperature, flow, the pressure and other parameters of blend pressure medium 23.This routine fracturing process, is made to suppress high energy and produces pulsating press process or continuous process or multi-platform press process containing proppant air-flow mixing pressure break medium 23 force value sizes, pressure rising time, gas temperature, regulating and controlling containing supporting the parameters such as dosage by measurement and control instrument 10.Described pulsating pressure is generation and the speed of controlling high energy gas by ground, make down-hole pressure rise to rapidly peak value, make target rock stratum 27 form crack along preforation tunnel 28, then reducing burning velocity declines down-hole pressure, finally again produce high energy gas by the control of ground installation and make down-hole pressure again arrive peaking, be so concatenated to form pulsating press process.Described continuous process is the accurate control by ground installation, make high energy gas eruption mechanism 1 produce a certain amount of high energy gas with certain speed, make down-hole pressure reach specific value, then along with target rock stratum 27 forms crack absorption pressure, control in real time high energy gas eruption mechanism 1 and produce high energy gas and supplement to maintain particular pressure value.Described multi-platform press process is accurately to control high energy gas eruption mechanism 1 by ground, make it produce a certain amount of high energy gas with certain speed, make down-hole pressure reach certain value, this force value is kept controlling after certain hour high energy gas eruption mechanism 1 and continue to produce a certain amount of high energy gas and make down-hole pressure reach new specific value, so repeatedly can form multi-platform press process.The force value of mixing pressure break medium 23 is chosen as 1.5 times of fracture pressure of rock stratum, and rate of pressure rise is greater than 2MPa/ms.The fracture pressure value of described rock stratum is 20 ~ 70MPa.This routine fracturing process regulates and controls by measurement and control instrument 10 temperature that jet 67 sizes are mixed pressure break medium 23 with the ratio of high energy gas with regulation and control.Utilize high energy gas to make jet 67 vaporization inhale thermal properties cooling, suppress high energy impact on guide duct 30 intensity containing the high temperature of proppant air-flow to reduce to mix pressure break medium 23.This routine proppant storage tank 48 installs the proppant of different-grain diameter, is adjusted, adopted or add the proppants of dissimilar, different sizes in fracturing process different phase by measurement and control instrument 10.The dissimilar variety classes that refers to proppant of this routine proppant.The difference size of sand, selects 12-18 order or 12-20 object sand in this way.The equipment of this routine fracturing stratum has safe setting, and this arranges safely the pressure relief valve 4 being arranged in ground guide duct 5, and when the internal pressure of ground guide duct 5 is excessive while exceeding secure threshold, pressure relief valve 4 is controlled and opened pressure release by measurement and control instrument 10.There are 4 equipment of this pressure relief valve can be safer.27 sections of the target rock stratum of this routine fracturing process apply packer 26 and 29 up and down, only have the effect of being stressed of 27 sections of target rock stratum.There is this setting to make this equipment safer energy-conservation again.The target preforation tunnel 28 of the target rock stratum 27 of this routine fracturing process is that on 27 boreholes wall of target rock stratum, perforation launches eyelet or the duct of hydraulic slotted liner technique formation or the hole slot that cutting cartridge forms worn, and they have formed the passage that mixes pressure break medium 23 target approach rock stratum 27.These eyelets, duct, hole slot are all to mix pressure break medium 23 target approach rock stratum 27 to implement the passage of pressure break, particularly the passage of proppant target approach rock stratum wherein.Employing has certain pressure, temperature, the high energy gas of suppressing of flow and flow velocity passes through guide duct 30 borehole wall preforation tunnel 28 target approach rock stratum 27 with the pressure break medium 23 that mixes of proppant, utilize the pressure that mixes pressure break medium 23 to make rock stratum cracking form 3 and above compared with large fracture and numerous microfissure, mixing pressure break medium 23 contacts with rock stratum with mechanism and can to rock stratum and heat loss, the volume of gas be reduced because of leak-off, thereby will mix proppants settle down in pressure break medium 23 in crack, the current by pass of formation fluid and pit shaft is set up in the support that forms fracture, prevent closing up of cracks.The equipment that the present invention that Here it is adopts uses advantage and the superior function thereof of the technology essential factor of high energy air stream drives proppant pressure break rock stratum.Fig. 7 illustrates that this routine high energy air stream drives proppant imports the equipment workflow diagram on underground fracture stratum, in Fig. 7: the 74th, construction starts, the 75th, measurement and control instrument is programmed, the 76th, pipeline assembling, the 77th, flow transmitter and unidirectional, pressure relief valve is installed, the 78th, assembling jet mechanism, the 79th, assembling high energy gas eruption mechanism, the 80th, temperature, the installation of sensors such as pressure, the 81st, connect instrument test end, the 82nd, connect instrument control end, the 83rd, power on to instrument, the 84th, spray the assembling of high energy gas raw material, the 85th, pressure testing igniting, the 86th, monitoring annular pressure, the 87th, open pressure relief valve, the 88th, manifold pressure is down to atmospheric pressure, the 89th, electricity under instrument, the 90th, investigation equipment fault, the 91st, open the each valve of high energy gas eruption mechanism's charging, the 92nd, pressure break igniting, the 93rd, monitoring pipeline pressure, the 94th, open pressure relief valve pressure release to threshold range, the 95th, monitoring pipe channel temp, the 96th, spray cooling, the 97th, monitoring mixes pressure break rate-of flow, the 98th, pipeline pressure pressure release is to atmospheric pressure, the 99th, detaching equipment, the 100th, construct.
Embodiment bis-. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum and can combine and illustrate with Fig. 1～Fig. 8 etc., the employing ground detonation gas of this example carries out the method difference that the method for reservoir reconstruction and the employing ground detonation gas of embodiment mono-carries out reservoir reconstruction to be had: 1. this routine oxidant, reducing agent, catalyzer, four kinds of fuel of additive spray in proportion and after mix high energy gas combustion chamber, do not need the igniter plug igniting can self-burning, this situation, high energy gas combustion chamber can not arrange igniter plug and control thereof.2. this routine main control microprocessor selects to adopt the microprocessor of MSP430 type or AVR type or C8051F type or STM32 model.3. this routine oxidant selects to adopt ammonium nitrate or nitric acid or red fuming nitric acid.This routine reducing agent selects to adopt alcohol.This routine catalyzer is selected to adopt slaine, and described slaine has iron chloride, copper sulphate.This routine additive selects to adopt ammonia.4. the liquid selective of this routine jet is easy to mix, carry and transport the aqueous solution of proppant, and the described aqueous solution is aqueous metal salt, for example, be sodium chloride solution or Klorvess Liquid etc.5. this routine proppant is selected to adopt ceramic particle, and the proppant of described difference size refers to 12-18,12-20 order haydite.6. its pore aperture of thin spray orifice that this routine high-pressure nozzle 13 has is 3mm.7. this routine guide duct 30 adopts drilling rod as selected.8. the force value of the mixing pressure break medium 23 of this example is chosen as 3.5 times of fracture pressure of rock stratum.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-, no longer repeat.
Embodiment tri-. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum can combine and illustrate with Fig. 1～Fig. 8 etc.s, and the employing ground detonation gas of this example carries out the method for reservoir reconstruction to be had with the method difference that the employing ground detonation gas of embodiment mono-, embodiment bis-carries out reservoir reconstruction: 1. this routine oxidant selection employing liquid oxygen.This routine reducing agent selects to adopt hydrazine or methyl hydrazine or uns-dimethylhydrazine or aerozine-50.This routine catalyzer selects to adopt iron chloride hydrate etc.This routine additive selects to adopt methyl alcohol or furfuryl alcohol.2. this routine proppant is selected to adopt coal gangue particle, and the proppant of described difference size refers to 16-20 order gangue grain.3. its pore aperture of thin spray orifice that this routine high-pressure nozzle 13 has is 2mm.4. the force value of the mixing pressure break medium 23 of this example is chosen as 2.5 times of fracture pressure of rock stratum.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-, embodiment bis-, no longer repeat.
Embodiment tetra-. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum can combine and illustrate with Fig. 1～Fig. 8 etc.s, and the employing ground detonation gas of this example carries out the method for reservoir reconstruction to be had with the method difference that the employing ground detonation gas of embodiment mono-～embodiment tri-carries out reservoir reconstruction: 1. this routine oxidant selection employing liquid fluorine.This routine reducing agent selects to adopt kerosene or gasoline.This routine additive selects to adopt aluminium or beryllium or lithium etc.2. this routine proppant is selected to adopt coal gangue particle, and the proppant of described difference size refers to 20-40 order gangue grain.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-～embodiment tri-, no longer repeat.
Embodiment five. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum can combine and illustrate with Fig. 1～Fig. 8 etc.s, and the employing ground detonation gas of this example carries out the method for reservoir reconstruction to be had with the method difference that the employing ground detonation gas of embodiment mono-～embodiment tetra-carries out reservoir reconstruction: 1. this routine oxidant selection employing H 2o 2.This routine reducing agent selects to adopt furfuryl alcohol or all kinds of alcohol alkane.2. this routine proppant selects to adopt sand or pottery particle, and the proppant of described difference size refers to 30-50 order sand or pottery particle.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-～embodiment tetra-, no longer repeat.
Embodiment six. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum and can combine and illustrate with Fig. 1～Fig. 8 etc., the employing ground detonation gas of this example carries out the method difference that the method for reservoir reconstruction and the employing ground detonation gas of embodiment mono-～embodiment five carries out reservoir reconstruction to be had: 1. this routine oxidant selects to adopt following component nitrogen tetraoxide, ammonium nitrate, nitric acid, red fuming nitric acid, liquid oxygen, liquid fluorine, H 2o 2deng their combination, it is combinations that above-mentioned various component is pro rata arbitrarily by component, may, need that described oxidant is selected the combination of the various components that adopt.2. this routine reducing agent selects to adopt aniline or ammonia.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-～embodiment five, no longer repeat.
Embodiment seven. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum can combine and illustrate with Fig. 1～Fig. 8 etc.s, and the employing ground detonation gas of this example carries out the method for reservoir reconstruction to be had with the method difference that the employing ground detonation gas of embodiment mono-～embodiment six carries out reservoir reconstruction: this routine reducing agent selection employing hydride or glycerine.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-～embodiment six, no longer repeat.
Embodiment eight. adopt detonation gas in ground to carry out the method for reservoir reconstruction
The employing ground detonation gas of this example carries out the equipment concrete structure that high energy air stream drives proppant that the method for reservoir reconstruction uses imports underground fracture stratum and can combine and illustrate with Fig. 1～Fig. 8 etc., the employing ground detonation gas of this example carries out the method difference that the method for reservoir reconstruction and the employing ground detonation gas of embodiment mono-～embodiment seven carries out reservoir reconstruction to be had: this routine reducing agent selects to adopt following component liquid hydrogen, alcohol, hydrazine, methyl hydrazine, uns-dimethylhydrazine, aerozine-50, kerosene, gasoline, furfuryl alcohol, all kinds of alcohol alkane, aniline, ammonia, boron hydride, their combination such as glycerine, it is that above-mentioned various component is pro rata arbitrarily by component that described reducing agent is selected the combination of the various components that adopt, may, the combination needing.The employing ground detonation gas of this example carry out reservoir reconstruction method all the other do not state, be entirely same as described in embodiment mono-～embodiment seven, no longer repeat.

Claims (10)

1. a method that adopts detonation gas in ground to carry out reservoir reconstruction, the equipment that the method for this reservoir reconstruction adopts high energy air stream drives proppant to import underground fracture stratum is realized, the equipment that described high energy air stream drives proppant imports underground fracture stratum erupts mechanism by high energy gas, jet mechanism, high energy gas and jet mixing mechanism, measurement and control instrument, ground and down-hole guide duct combine, be characterised in that: the high energy gas eruption mechanism of the equipment of the fracturing stratum of described employing, jet mechanism, high energy gas and jet mixing mechanism and measurement and control instrument all arrange on the ground, by measurement and control instrument control high energy gas eruption mechanism igniting eruption high energy gas, control jet mechanism jetting stream, and high energy gas and the jet of controlling eruption high energy gas with in jet mixing mechanism, act on mutually generation and mix pressure break medium and enter down-hole guide duct, in the guide duct of down-hole, mixing the formation of pressure break medium suppresses high energy containing proppant air-flow and arrives fracturing stratum position, the screen casing mouth of down-hole guide duct is aimed at the preforation tunnel of pit shaft target rock stratum, measurement and control instrument passes through temperature, pressure, flow, the parameter of microseism sensor real-time testing fracturing process, Based Intelligent Control high energy air stream drives proppant sprays to preforation tunnel, make target rock stratum produce many compared with large fracture, and make proppant enter crack fracture formation support, increase the communication area of target rock stratum and pit shaft, be beneficial to exploitation and the production of oil gas.
2. employing according to claim 1 ground detonation gas carries out the method for reservoir reconstruction, be characterised in that: described measurement and control instrument is made up of electronic control circuit and software systems and Instrument shell, wherein electronic control circuit comprises: main control microcomputer or microprocessor, temperature pick up, pressure sensor, flow transmitter, microseism sensor, signal conditioning circuit, signal amplification circuit, mould/number conversion circuit, data storage circuitry, telecommunication circuit, control circuit, interface circuit composition, control circuit connects respectively by interface circuit and controls and is distributed in high energy gas eruption mechanism, jet mechanism, the mixed organization of high energy gas and jet, the control execution unit of guide duct, assembly, element action.
3. employing according to claim 1 ground detonation gas carries out the method for reservoir reconstruction, be characterised in that: described high energy gas eruption mechanism is by high energy gas combustion chamber and igniter plug, oxidant storage tank and feed pipe and valve, reducing agent storage tank and feed pipe and valve, catalyzer storage tank and feed pipe and valve, additive storage tank and feed pipe and valve composition, each charging aperture of combustion chamber is connected respectively oxidant storage tank by each feed pipe with valve, reducing agent storage tank, catalyzer storage tank, additive storage tank, the high energy gas vent of eruption of combustion chamber connects the high energy gas entrance of high energy gas and jet mixing mechanism, igniter plug is arranged in combustion chamber and connects controlled with measurement and control instrument interface circuit, described oxidant selects to adopt nitrogen tetraoxide, or ammonium nitrate, or nitric acid, or red fuming nitric acid, or liquid oxygen, or liquid fluorine, or H 2o 2, or their combination, described reducing agent selects to adopt liquid hydrogen or alcohol or hydrazine or methyl hydrazine or uns-dimethylhydrazine or aerozine-50 or kerosene or gasoline or furfuryl alcohol or all kinds of alcohol alkane or aniline or ammonia or boron hydride or glycerine or their combination, described catalyzer selects to adopt metal or slaine or iron chloride hydrate, described additive selects to adopt H 2o or ammonia or methyl alcohol or furfuryl alcohol or aluminium or beryllium or lithium.
4. employing according to claim 1 ground detonation gas carries out the method for reservoir reconstruction, be characterised in that: described jet mechanism is made up of proppant storage tank, discharging control valve, liquid tank, solid-liquid blender, liquid booster pump, high pressure liquid valve, high-pressure nozzle, wherein solid-liquid mixer entrance connects respectively proppant storage tank, liquid booster pump, liquid booster pump connects liquid tank, solid-liquid mixer outlet connects high-pressure nozzle, high-pressure nozzle jetting stream, described proppant is selected to adopt quartz sand or ceramic particle, or coal gangue particle; The liquid selective of described jet is easy to mixing, carries and transport the liquid of proppant, adopts stable water or the aqueous solution of chemical characteristic as selected.
5. employing according to claim 1 ground detonation gas carries out the method for reservoir reconstruction, be characterised in that: described high energy gas and jet mixing mechanism are mainly to form by blender, the entrance of blender connects respectively high-pressure nozzle outlet and the high energy gas eruption outlet of jet, and the outlet of blender is connected with down-hole guide duct entrance; Described down-hole guide duct selects to adopt high temperature resistant, high-intensity metal or other substitution material, and guide duct adopts oil pipe, drilling rod as selected, and down-hole guide duct end forms screen casing mouth.
6. employing according to claim 1 ground detonation gas carries out the method for reservoir reconstruction, is characterised in that:
A. described fracturing process is subject to measurement and control instrument Based Intelligent Control, is to change the each fracturing parameter of regulation and control high energy air stream drives proppant according to the pressure of measurement and control instrument test, temperature, flow, microseism parameter;
B. described fracturing process, by measurement and control instrument to mixing pressure break pressure medium value size, pressure rising time, gas temperature, regulating and controlling containing supporting dosimetry parameter, makes to suppress high energy and produces pulsating press process or continuous process or multi-platform press process containing proppant air-flow; The force value of mixing pressure break medium is chosen as 1.5 ~ 3.5 times of fracture pressure of rock stratum, and rate of pressure rise is greater than 2MPa/ms;
C. described fracturing process regulates and controls by measurement and control instrument the temperature that jet size is mixed pressure break medium with the ratio of high energy gas with regulation and control;
D. the proppant of described proppant storage box device different-grain diameter, in fracturing process different phase by measurement and control instrument adjustment, adopt or add proppants dissimilar, different sizes;
E. the equipment of this described fracturing stratum has safe setting, and this arranges safely the pressure relief valve being arranged in the guide duct of ground, and when ground guide duct internal pressure is excessive while exceeding secure threshold, pressure relief valve is opened by measurement and control instrument control;
F. the target rock stratum section of described fracturing process applies packer up and down, only has the section effect of being stressed of target rock stratum;
G. the target preforation tunnel of described fracturing process target rock stratum is that on the borehole wall of target rock stratum, perforation launches eyelet or the duct of hydraulic slotted liner technique formation or the hole slot that cutting cartridge forms worn, and they have formed the passage that mixes pressure break medium target approach rock stratum.
7. employing according to claim 2 ground detonation gas carries out the method for reservoir reconstruction, is characterised in that:
A. described measurement and control instrument is provided with control end and data acquisition end, its data acquisition end respectively with temperature pick up, pressure sensor, flow transmitter, microseism sensor connects, its control end respectively with high energy gas combustion chamber igniter plug, oxidizer valve gate control end, reducing agent valve control end, catalyst valve gate control end, supplement valve gate control end, the liquid booster pump switch of solid-liquid blender, proppant material inlet valve, proppant discharge valve, gas unidirectional threshold switch is connected, measurement and control instrument is by receiving, analyze, treatment temperature, pressure, flow, the data of microseism sensor collection judge the running status of current complete equipment, to realize the real-time intelligent control to each stage running,
B. described measurement and control instrument is according to temperature, pressure, flow, the parameter of microseism sensor Real-time Collection is to complete equipment Based Intelligent Control, according to the pressure of measurement and control instrument test, temperature, flow, microseism parameter changes the each fracturing parameter of regulation and control high energy air stream drives proppant, suppress gas production and the flow of high energy containing proppant air-flow by measurement and control instrument to mixing pressure break medium, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series regulates and controls, to produce pulsating press process, or continuous process, or multi-platform press process, the various fracturing effects of realize target rock stratum fracturing engineering demand.
8. employing according to claim 3 ground detonation gas carries out the method for reservoir reconstruction, is characterised in that:
A. described high energy gas eruption mechanism has oxidant, reducing agent, catalyzer, four charging apertures of additive, these charging apertures connect respectively booster pump and connect each charging storage tank again, measurement and control instrument is by accurately controlling four material inlet valves and booster pump thereof respectively, make four kinds of fuel spray in proportion high energy gas combustion chamber, combustion chamber is and is beneficial to the bell of the abundant mixed combustion of fluid, indoor have an igniter plug that is subject to measurement and control instrument control, Inner Wall of Combustion Chamber arranges heat-barrier material, outside combustion chamber, be surrounded with circulating water cooling pipeline, take away the unnecessary heat in combustion chamber;
B. or, described four kinds of fuel of oxidant, reducing agent, catalyzer, additive spray in proportion and after mix high energy gas combustion chamber, do not need the igniter plug igniting can self-burning, this situation, high energy gas combustion chamber can not arrange igniter plug and control thereof;
C. regulate and control liquid and proppant proportioning and jet jet velocity in high energy gas combustion chamber each fuel element charging dosage and solid-liquid blender jet by measurement and control instrument, and then the ratio of regulation and control high energy gas and jet, the fracturing process and the result that need to produce fracturing engineering to regulate and control to mix pressure, temperature, flow, the energy of pressure break medium.
9. employing according to claim 4 ground detonation gas carries out the method for reservoir reconstruction, is characterised in that:
A. the liquid inlet of described solid-liquid blender connects liquid tank by liquid booster pump, the proppant entrance of solid-liquid blender connects proppant storage tank by discharging control valve, liquid is extracted out it by liquid booster pump from storage tank, form highly pressurised liquid stream by proppant discharging opening and carry proppant and enter the mixing of solid-liquid blender, and form jet by high-pressure nozzle, in the blender of high energy gas and jet, jet and high energy gas mix and form and mix pressure break medium, enter down-hole guide duct, regulate and control solid-liquid blender material inlet valve to control charge proportion and the flow thereof of proppant and liquid by measurement and control instrument, and then the ratio of regulation and control high energy gas and jet and mix pressure break medium and suppress gas production and the flow that high energy contains proppant air-flow, gas flow temperature, air-flow is containing supporting dosage, pressure size, pressure rising time, press process parameters in series, to produce pulsating press process, or continuous process, or multi-platform press process, the various fracturing effects of realize target rock stratum fracturing engineering demand,
B. the high-pressure nozzle of described solid-liquid blender has numerous thin spray orifices, thin spray orifice sprays thin jet, fully mix with high energy gas, after this jet mixes with high energy gas with environment temperature, heat absorption is vaporized into gas, increase high temperature and high pressure gas total amount and make to mix rear gas temperature and reduce, utilize high energy gas to make jet vaporization inhale thermal property cooling, suppress high energy impact on guide duct intensity containing the high temperature of proppant air-flow to reduce to mix pressure break medium, high energy gas flow temperature is controlled in 800 degrees Celsius, become the fluid-mixing of suppressing high energy gas and proppant.
10. employing according to claim 6 ground detonation gas carries out the method for reservoir reconstruction, be characterised in that: adopt and there is certain pressure, temperature, the high energy gas of suppressing of flow and flow velocity passes through guide duct with the pressure break medium that mixes of proppant, borehole wall preforation tunnel target approach rock stratum, utilize the pressure that mixes pressure break medium to make rock stratum cracking form 3 and above compared with large fracture and numerous microfissure, mixing pressure break medium contacts with rock stratum with mechanism and can to rock stratum and heat loss, the volume of gas be reduced because of leak-off, thereby will mix proppants settle down in pressure break medium in crack, the current by pass of formation fluid and pit shaft is set up in the support that forms fracture, prevent closing up of cracks.
CN201410337316.XA 2014-07-15 Use the method that ground high energy gas carries out reservoir reconstruction Expired - Fee Related CN104121004B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104533367A (en) * 2014-11-13 2015-04-22 中国石油天然气股份有限公司 Natural gas hydrate fire flooding mining method
CN104975838A (en) * 2015-07-17 2015-10-14 中国石油大学(华东) Method capable of preventing pre-existing cracks against closure by adoption of high-energy gas fracture
CN105971580A (en) * 2016-06-27 2016-09-28 中国海洋石油总公司 Deflagration fracturing experiment device and method for screen pipe
CN105986795A (en) * 2015-02-10 2016-10-05 中国石油天然气股份有限公司 Coal bed gas horizontal well coal bed transformation method
CN106246156A (en) * 2016-08-23 2016-12-21 中国海洋石油总公司 Method made by a kind of explosion fracturing acidifying connection
CN107401400A (en) * 2016-07-15 2017-11-28 中国石油天然气股份有限公司 Frac system
CN109025938A (en) * 2018-06-22 2018-12-18 中国矿业大学 A kind of underground coal mine multistage combustion shock wave fracturing coal body reinforcing gas pumping method
CN109113701A (en) * 2017-06-24 2019-01-01 高九华 Using air as the anti-reflection technology of pulsating pressure-air creep pressure break and device of medium
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2276559Y (en) * 1996-09-25 1998-03-18 西安石油学院 Perforation-high energy gas fracturing device
CN1970992A (en) * 2006-12-06 2007-05-30 西安通源石油科技股份有限公司 Dynamic test device for composite perforator
US20090200017A1 (en) * 2006-01-12 2009-08-13 Oleg Borisovitch Kalinin Method and device for treating bottom-hole zones of oil-and-gas-bearing formations
CN102041985A (en) * 2010-11-15 2011-05-04 中北大学 Multi-parameter real-condition monitoring method for well completion of underground perforator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2276559Y (en) * 1996-09-25 1998-03-18 西安石油学院 Perforation-high energy gas fracturing device
US20090200017A1 (en) * 2006-01-12 2009-08-13 Oleg Borisovitch Kalinin Method and device for treating bottom-hole zones of oil-and-gas-bearing formations
CN1970992A (en) * 2006-12-06 2007-05-30 西安通源石油科技股份有限公司 Dynamic test device for composite perforator
CN102041985A (en) * 2010-11-15 2011-05-04 中北大学 Multi-parameter real-condition monitoring method for well completion of underground perforator

Cited By (19)

* Cited by examiner, † Cited by third party
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CN104533367A (en) * 2014-11-13 2015-04-22 中国石油天然气股份有限公司 Natural gas hydrate fire flooding mining method
CN105986795A (en) * 2015-02-10 2016-10-05 中国石油天然气股份有限公司 Coal bed gas horizontal well coal bed transformation method
CN105986795B (en) * 2015-02-10 2018-09-04 中国石油天然气股份有限公司 Coal bed gas horizontal well coal seam remodeling method
CN104975838A (en) * 2015-07-17 2015-10-14 中国石油大学(华东) Method capable of preventing pre-existing cracks against closure by adoption of high-energy gas fracture
CN104975838B (en) * 2015-07-17 2017-11-14 中国石油大学(华东) A kind of method for preventing high enegry gas fracturing existing crack from closing
CN105971580A (en) * 2016-06-27 2016-09-28 中国海洋石油总公司 Deflagration fracturing experiment device and method for screen pipe
CN107401400B (en) * 2016-07-15 2020-04-10 中国石油天然气股份有限公司 Fracturing system
CN107401400A (en) * 2016-07-15 2017-11-28 中国石油天然气股份有限公司 Frac system
CN106246156B (en) * 2016-08-23 2018-12-14 中国海洋石油集团有限公司 A kind of explosion fracturing acidification connection makees method
CN106246156A (en) * 2016-08-23 2016-12-21 中国海洋石油总公司 Method made by a kind of explosion fracturing acidifying connection
CN110637145A (en) * 2017-03-20 2019-12-31 沙特阿拉伯石油公司 Slotting a wellbore while drilling
US11215011B2 (en) 2017-03-20 2022-01-04 Saudi Arabian Oil Company Notching a wellbore while drilling
CN109113701A (en) * 2017-06-24 2019-01-01 高九华 Using air as the anti-reflection technology of pulsating pressure-air creep pressure break and device of medium
CN109025938A (en) * 2018-06-22 2018-12-18 中国矿业大学 A kind of underground coal mine multistage combustion shock wave fracturing coal body reinforcing gas pumping method
CN109025938B (en) * 2018-06-22 2020-07-24 中国矿业大学 Method for reinforcing gas extraction of coal body fractured by multistage combustion shock wave under coal mine
CN109826610A (en) * 2019-01-15 2019-05-31 中北大学 A kind of device of the piecewise pressure break coal seam deep hole of pouring-in high energy pulse
CN109826610B (en) * 2019-01-15 2021-07-06 中北大学 Injection type high-energy pulse section-by-section coal seam deep hole fracturing device
CN113404475A (en) * 2021-07-15 2021-09-17 吉林大学 Underground combustion heater for in-situ heating of underground mineral resources
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