CN103787801B - For the priming explosive of reservoir aerodynamic force volume increase - Google Patents
For the priming explosive of reservoir aerodynamic force volume increase Download PDFInfo
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- CN103787801B CN103787801B CN201410067201.3A CN201410067201A CN103787801B CN 103787801 B CN103787801 B CN 103787801B CN 201410067201 A CN201410067201 A CN 201410067201A CN 103787801 B CN103787801 B CN 103787801B
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- aerodynamic force
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Abstract
The invention discloses a kind of priming explosive for the volume increase of reservoir aerodynamic force, the described priming explosive for the volume increase of reservoir aerodynamic force forms primarily of the raw material of following mass percent: Potcrate 28%-32%, potassium perchlorate 10%-14%, nitrate of baryta 24%-28%, ammonium nitrate 3%-8%, aluminium powder 8%-20%, magnesium powder 7%-18%.The viton of the described additional 0.5%-1.5% of priming explosive for the volume increase of reservoir aerodynamic force.Described viton is cementing agent.The present invention need not be transported among oil well floor rocks gap and go, and working method is simplified greatly, and it ignites quick-fried effective, and ignition success rate reaches absolutely, can effectively improve oil extraction in oil field rate and safe and reliable, with low cost.
Description
Technical field
The invention belongs to explosive technical field, particularly relate to a kind of priming explosive for the volume increase of reservoir aerodynamic force.
Background technology
The prospective oil of China's LOW PERMEABILITY RESERVOIR is very considerable, and the low-permeability oilfield geologic reserve newly verified has billions of ton, accounts for 1/4 of China's oil total reserves.Low-permeability oil deposit adopts the scheme such as straight well and the exploitation of straight interspaced well, waterflooding and horizontal well development usually.Straight well and straight interspaced well utilize producing energy to develop, and recovery ratio is low.Waterflooding and fracturing developing are the development plans that current most of low-permeability oil deposit relatively passes through, and needing increases drilling well well number and oil formation improvement number of times, and cost of winning improves.Horizontal well development is the new technology grown up nearly more than ten years, because drilling well difficulty is large, is not also widely used.Low-permeability oil deposit reservoir conditions is poor, development technique is single, development level is low, and therefore recovery ratio is generally low, less economical, constrains the Efficient Development of China's low-permeability oil deposit.
Current is 0.1 × 10 to rate of permeation
-3mm
2~ 50 × 10-3mm
2the oil-field development of hypotonic, low hole mainly adopt waterfrac treatment and Acidizing Technology transformation oil reservoir.But can only form in the hydrocarbon-bearing pool waterfrac treatment that rate of permeation is very low the vertically split that the both wings perpendicular to least principal stress split, secondary waterfrac treatment in old oil formation improvement, also often just along old fracture propagation, can not form the crack in new orientation, oil gas can only flow into major fracture output by original micro-pore; And being still difficult to extraction from the oil gas away from major fracture, the recovery ratio how improving low permeability oil and gas field is the problem demanding prompt solution that China Petroleum faces.If by suitable detonation medicine press-in waterpower or natural fracture, the detonation medicine of there can be ignited, makes it produce substantial radial crack around major fracture, for supplying flow pass away from major fracture stripping of oil, can greatly improve oil recovery ratio.The hydrocarbon-bearing pool of low permeability, the horizontal slit of same length is more remarkable than vertically split effect of increasing production.In Low permeable oil and gas reservoirs, the important way that the secondary fracture forming many in the vertically split of detonation medicine press-in waterfrac treatment will be an Efficient Development.
Inst. of Mechanics, CAS and seepage flow dynamics institute are in recent years to low permeability oil and gas field, and " exploding in fracture " yield-increasing technology is studied.The Chinese Academy of Sciences establishes small scale analogue experiment installation, proves " exploding in fracture " feasibility under small scale condition.By simulation test, at least have found one group " exploding in fracture " with extraordinary explosive wastewater basic recipe; Less than primary process 200mm yardstick achieving the squeezing of extraordinary explosive wastewater, igniting and detonation, its peak pressure is upper and lower at 100MPa; Economy, the security of this extraordinary explosive wastewater may reach production requirement, thus confirm " exploding in fracture " principle basic feasible solution.And confirm that the detonation of thin layer medicine is feasible theoretically, propose the MODEL FOR ONE DIMENSIONAL COMPRESSIBLE FLUID FLOW mechanics model considering chemical reaction.
Known according to its research: igniting is in pit shaft, and this answers no problem in testing at the scene, mainly pass the reliability of fire and propagation of explosion, calculating shows, the permanent steady deflagration phenomenon of one dimension may occur, and the condition of the permanent hidden propelling of detonation is harsh, needs the coupling of multiple parameter.Frequency factor is larger, and steady advance speed is larger; Chemical reaction heat is larger, and steady advance speed is larger; Interfacial heat transfer coefficient is larger, and steady advance speed is less; Thickness of thin layer is larger, and steady advance speed is larger; There is lower limit in the thickness of thin layer energy detonation.The physical vision of this calculation result meets convention.But total conclusion is as follows: " condition of detonation steady advance is harsh, needs multiple parameter matching, and the quick-fried method of igniting of detonation steady advance is insecure in construction process at the scene in other words.”
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of priming explosive for the volume increase of reservoir aerodynamic force, it need not be transported among oil well floor rocks gap and go, working method is simplified greatly, it ignites quick-fried effective, ignition success rate reaches absolutely, can effectively improve oil extraction in oil field rate and safe and reliable, with low cost.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of priming explosive for the volume increase of reservoir aerodynamic force, it is characterized in that, the described priming explosive for the volume increase of reservoir aerodynamic force forms primarily of the raw material of following mass percent: Potcrate 28%-32%, potassium perchlorate 10%-14%, nitrate of baryta 24%-28%, ammonium nitrate 3%-8%, aluminium powder 8%-20%, magnesium powder 7%-18%.
Preferably, the described additional mass percent of priming explosive for the volume increase of reservoir aerodynamic force is the viton of 0.5%-1.5%.
Preferably, described viton is cementing agent.
Preferably, described Potcrate is the first oxygenant, and potassium perchlorate is the second oxygenant, and nitrate of baryta is the 3rd oxygenant, and magnesium powder is combustible agent, and aluminium powder is ignition dope, and ammonium nitrate is additive.
Positive progressive effect of the present invention is: the present invention need not be transported among oil well floor rocks gap and go, working method is simplified greatly, and it ignites quick-fried effective, and ignition success rate reaches absolutely, can effectively improve oil extraction in oil field rate and safe and reliable, with low cost.
Embodiment
The priming explosive that the present invention is used for the volume increase of reservoir aerodynamic force is made up of the raw material of following mass percent: Potcrate 28%-32%, potassium perchlorate 10%-14%, nitrate of baryta 24%-28%, ammonium nitrate 3%-8%, aluminium powder 8%-20%, magnesium powder 7%-18%.Wherein additional viton is 0.5%-1.5%.
Embodiment 1
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28%, potassium perchlorate 12.5%, nitrate of baryta 25.5%, ammonium nitrate 7%, magnesium powder (granularity 10 μm) 9%, aluminium powder (granularity less than 10 μm) 17%.Additional viton 1%.
Embodiment 2
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 30%, potassium perchlorate 11.5%, nitrate of baryta 25%, ammonium nitrate 5.5%, magnesium powder (granularity 10 μm) 12.5%, aluminium powder (granularity less than 10 μm) 14.3%.Additional viton 1.2%.
Embodiment 3
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 31.2%, potassium perchlorate 11%, nitrate of baryta 26%, ammonium nitrate 5%, magnesium powder (granularity 10 μm) 10%, aluminium powder (granularity less than 10 μm) 16%.Additional viton 0.8%.
Embodiment 4
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 31%, potassium perchlorate 10%, nitrate of baryta 26.2%, ammonium nitrate 6.3%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 0.5%.
Embodiment 5
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.7%, potassium perchlorate 12%, nitrate of baryta 26.5%, ammonium nitrate 6%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 0.8%.
Embodiment 6
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.4%, potassium perchlorate 14%, nitrate of baryta 25%, ammonium nitrate 6%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 0.6%.
Embodiment 7
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 31%, potassium perchlorate 12.4%, nitrate of baryta 24%, ammonium nitrate 6%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 0.6%.
Embodiment 8
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 29.5%, potassium perchlorate 12.3%, nitrate of baryta 25%, ammonium nitrate 6.2%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 1.0%.
Embodiment 9
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.9%, potassium perchlorate 13.6%, nitrate of baryta 28%, ammonium nitrate 3.6%, magnesium powder (granularity 10 μm) 10%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 0.9%.
Embodiment 10
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 30.6%, potassium perchlorate 13.6%, nitrate of baryta 26.7%, ammonium nitrate 3%, magnesium powder (granularity 10 μm) 10%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 1.1%.
Embodiment 11
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 29.6%, potassium perchlorate 12%, nitrate of baryta 27%, ammonium nitrate 5%, magnesium powder (granularity 10 μm) 11%, aluminium powder (granularity less than 10 μm) 14%.Additional viton 1.4%.
Embodiment 12
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 29.4%, potassium perchlorate 11.4%, nitrate of baryta 25%, ammonium nitrate 8%, magnesium powder (granularity 10 μm) 10%, aluminium powder (granularity less than 10 μm) 15%.Additional viton 1.2%.
Embodiment 13
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.4%, potassium perchlorate 12.1%, nitrate of baryta 25.8%, ammonium nitrate 7.7%, magnesium powder (granularity 10 μm) 7%, aluminium powder (granularity less than 10 μm) 17.8%.Additional viton 1.2%.
Embodiment 14
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 30.1%, potassium perchlorate 12.1%, nitrate of baryta 24%, ammonium nitrate 7.5%, magnesium powder (granularity 10 μm) 12%, aluminium powder (granularity less than 10 μm) 13%.Additional viton 1.3%.
Embodiment 15
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.6%, potassium perchlorate 13.1%, nitrate of baryta 25.1%, ammonium nitrate 6.4%, magnesium powder (granularity 10 μm) 18%, aluminium powder (granularity less than 10 μm) 8%.Additional viton 0.8%.
Embodiment 16
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 28.7%, potassium perchlorate 12.2%, nitrate of baryta 26%, ammonium nitrate 6.2%, magnesium powder (granularity 10 μm) 18%, aluminium powder (granularity less than 10 μm) 8%.Additional viton 0.9%.
Embodiment 17
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 30%, potassium perchlorate 13.8%, nitrate of baryta 25.7%, ammonium nitrate 3.1%, magnesium powder (granularity 10 μm) 12%, aluminium powder (granularity less than 10 μm) 14%.Additional viton 1.4%.
Embodiment 18
A kind of priming explosive for the volume increase of reservoir aerodynamic force of the present embodiment, is made up of the raw material Homogeneous phase mixing of following mass percent: Potcrate 30.1%, potassium perchlorate 10.2%, nitrate of baryta 26.8%, ammonium nitrate 5.9%, magnesium powder (granularity 10 μm) 7%, aluminium powder (granularity less than 10 μm) 18.5%.Additional viton 1.5%.
The first oxygenant that the present invention is used in the priming explosive of reservoir aerodynamic force volume increase is Potcrate 28%-32%, and the second oxygenant is potassium perchlorate 10%-14%, and the 3rd oxygenant is nitrate of baryta 24%-28%, and combustible agent is magnesium powder 7%-18%; Ignition dope is aluminium powder 8%-20%; Additive is ammonium nitrate 3%-8%.Described cementing agent is viton, at formula outer interpolation 0.5%-1.5% viton, is convenient to granulation.
The preparation method that the present invention is used for the priming explosive of reservoir aerodynamic force volume increase is as follows: employing viton is cementing agent, the oxygenant evenly mixed, combustible agent, ignition dope and various additive are stirred into bulk by a certain percentage, forces granulation of sieving, screening, drying.Then, sealing is preserved, stand-by.
The present invention is as follows to raw-material requirement: (1) oxygenant Potcrate, potassium perchlorate, nitrate of baryta require that standard is industrial one-level, and its purity should reach 99%, water ratio≤0.5%; (2) additive ammonium nitrate requires to use the non-fertilizer type raw material of industrial one-level, and its purity answers >=98.5%, water ratio≤0.7%; (3) combustible agent and ignition dope require to use industrial one-level, and its purity answers >=99.5%, granularity≤10 μm; (4) viton as cementing agent should be flake, and its thickness is no more than 2mm, is convenient to shred; (5) ethyl acetate for dissolving viton should be industrial one-level, its effective content >=98.5%.
The raw-material pre-treatment of the present invention is as follows: (1) oxygenant and additive should be pulverized separately before use, should avoid during pulverizing using iron and steel etc. easily to produce pyrophoric metal tools, the non-ferrous metal such as aluminium, copper instrument should be used to eliminate under static state completely, block stock is pulverized, cross 100 mesh sieves, stand-by; (2) aluminium powder used, magnesium powder should cross 100 mesh sieves, to remove the larger residue of degranulation.(3) viton is shredded, be immersed in ethyl acetate, make the solution of 5%-8%.
Preparation process of the present invention is as follows: (1) batch mixing, takes oxygenant, combustible agent, ignition dope and additive by proportioning.Thick mixed 2 times, mix 2 times with scrubbing brush and 40 mesh sieve, then mix 3 times with scrubbing brush and 80 mesh sieves, finally, then mix 2 times with scrubbing brush and 40 mesh sieves.Get mixture appropriate, add and account for the viton ethyl acetate solution that volume of mixture is about 20%-30%, stir into bulk fast, treat granulation.(2) to sieve granulation, select 16 mesh sieves, force with scraper plate and sieve, then sieve, under getting 16 mesh sieves, for salable product carry out drying on 40 mesh sieves, stand-by.The particle of other particle diameters can granulation again, sieves with same method.(3) dry, with dry 6-8 hour (the making sure to keep in mind to use electric oven) of 60 degree of water oven.(4) being mixed into oildag, treating that temperature is down to room temperature, by mass percentage 0.5---the ratio of 0.8 is mixed into No. 00 oildag.Attention must mix.(5) preserve, be kept at hermetically drying place, guard against damp, antifriction impact.
We put down 54 wells to Sheng Fu44-side, certain oil field and carry out the down-hole exploding in fracture site operation that suspension explosive ignited by priming explosive.This well is spudded in 1988, has used more than 20 year.Real genus has scrapped old well without oil.This construction is to liking sidetrack horizontal well, 9.45 kilograms of priming explosives are adopted to ignite 2.8 cubic metres of suspension explosives, confirm construction technology success, technological method is reliable, achieve safe and reliable igniting blasting, confirm that the present invention is simple and crude in Oil Field condition for the detonate reliability of suspension explosive technology, security and priming explosive technology of the priming explosive that reservoir aerodynamic force increases production, the case succeeded under the condition of circumstance complication.Extemporaneous preparation suspension explosive guar gum solution 1.043 tons in construction, extemporaneous preparation tetracol phenixin and diesel oil mixing spacer pad 1.2m3, adjustment density makes it reach the service requirements of 1.07 ~ 1.08kg/L.Preparation suspension medicine 2.8 side, actual weight about 2.92 tons.The present invention is used to be used for the priming explosive 9.45 kilograms of reservoir aerodynamic force volume increase.Well head caber method is adopted to detonate, successful detonation after 3 minutes.Rise and hold up flat 54 blowouts in 44-side to go out water jets under high pressure, tensimeter rises to rapidly 25 Mpa, and well head water column is flushed to 7 meters high.After construction, former well oil offtake is upper assorted to 2.5-3 ton every day by the every day 0 ton before constructing, and produces direct economic benefit 490,000 yuan.
Those skilled in the art can carry out various remodeling and change to the present invention.Therefore, present invention covers the various remodeling in the scope falling into appending claims and equivalent thereof and change.
Claims (3)
1. the priming explosive for the volume increase of reservoir aerodynamic force, it is characterized in that, the described priming explosive for the volume increase of reservoir aerodynamic force forms primarily of the raw material of following mass percent: Potcrate 28%-32%, potassium perchlorate 10%-14%, nitrate of baryta 24%-28%, ammonium nitrate 3%-8%, aluminium powder 8%-20%, magnesium powder 7%-18%; The described additional mass percent of priming explosive for the volume increase of reservoir aerodynamic force is the viton of 0.5%-1.5%.
2., as claimed in claim 1 for the priming explosive of reservoir aerodynamic force volume increase, it is characterized in that, described viton is cementing agent.
3., as claimed in claim 1 for the priming explosive of reservoir aerodynamic force volume increase, it is characterized in that, described Potcrate is the first oxygenant, potassium perchlorate is the second oxygenant, and nitrate of baryta is the 3rd oxygenant, and magnesium powder is combustible agent, aluminium powder is ignition dope, and ammonium nitrate is additive.
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| CN104447147B (en) * | 2014-12-10 | 2017-01-18 | 田磊 | Aftereffect body granular preparation for oil-gas well perforation and preparation method thereof |
| CN106380363B (en) * | 2016-08-29 | 2019-01-01 | 刘兴海 | The production method of making fragrant firecrackers |
| CN106397077A (en) * | 2016-09-24 | 2017-02-15 | 盘锦金宇众和工程服务有限公司 | Preparation method of fire-flooding particle igniter |
| CN107130946A (en) * | 2017-06-02 | 2017-09-05 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of economic benefits and social benefits perforating bullet and active material containing active material layer |
| CN108955404B (en) * | 2018-07-12 | 2020-06-02 | 北方斯伦贝谢油田技术（西安）有限公司 | Super-energy charge for perforation and fracturing of oil and gas well and preparation method |
| CN109081765B (en) * | 2018-09-19 | 2021-12-07 | 西安石油大学 | Chemical auxiliary ignition agent and ignition method for low-temperature heavy oil reservoir |
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| CN102381914A (en) * | 2011-07-25 | 2012-03-21 | 西安石油大油气科技有限公司 | Powder for preparing microspheres for detonation of blasting in oil field layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102381914A (en) * | 2011-07-25 | 2012-03-21 | 西安石油大油气科技有限公司 | Powder for preparing microspheres for detonation of blasting in oil field layer |
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