CN108997986A - A kind of nanometer abrasive drilling fluid and boring method - Google Patents
A kind of nanometer abrasive drilling fluid and boring method Download PDFInfo
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- CN108997986A CN108997986A CN201810708002.4A CN201810708002A CN108997986A CN 108997986 A CN108997986 A CN 108997986A CN 201810708002 A CN201810708002 A CN 201810708002A CN 108997986 A CN108997986 A CN 108997986A
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- nanometer abrasive
- abrasive drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 97
- 239000012530 fluid Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 33
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000002105 nanoparticle Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 32
- 230000035515 penetration Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 239000006061 abrasive grain Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000013612 plasmid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/032—Inorganic additives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of nanometer abrasive drilling fluid and boring methods.Contain nano alumina particles or nano SiO 2 particle in the nanometer abrasive drilling fluid.The present invention also provides a kind of boring methods using above-mentioned drilling fluid.Boring method of the invention can guarantee that nozzle and tube wall be not frayed while ensuring efficiency crushing hard rock, improving rate of penetration.
Description
Technical field
The present invention relates to a kind of drilling fluid containing nanometer abrasive and using its boring method, belong to oil-gas mining technology
Field.
Background technique
Deep Oil And Gas Exploration resource is the key areas that current and following China's petroleum resources strategy is taken over.According to the new round whole nation
The recent statistics of oil and gas resource evaluation are as a result, China's oil gas residue geological resources mid-deep strata petroleum resources account for 40% or so (its
In: deep petroleum resource accounts for 30%, 50%) deep natural gas resource accounts for.In recent years the supergiant field of China's discovery, Ru Tali
Distant deep layer of wood, NE Sichuan, pine etc. is in the deep layer greater than 4500m.It is Efficient Development Deep Oil And Gas Exploration resource that deep-well, which is drilled well,
Key technology.
However, to be at complex lithology, complex pressure system etc. universally acknowledged for the Deep Oil And Gas Exploration resource in China 80% or so
Highly difficult area, so that China's deep layer is drilled well and face unprecedented complex technology problem, especially formation rock hardness is high,
Drillability is poor, and drilling speed is slow, drilling period is long (even several years several months).
Abradant jet auxiliary rock drilling technology is long-standing, and technical principle is a concentration is mixed into drilling fluid hard
Plasmid, and pass through bit nozzle and impacted in the form of high-pressure jet, be crushed bottom rock, promote rock to generate microcrack, reaches
The purpose of bit teeth broken rock is assisted, and then increases substantially rate of penetration.Last century, early sixties Bobo applied abrasive material first
Jet stream makes hole, and this method is greatly improved bit speed, and Bobo in 1963 discloses a kind of abradant jet and makes hole
Into device (application No. is US3112800A).1966 United States Gulf oil company (Gulf Oil) disclose a kind of abradant jet
Make hole bit nozzle (application number: US3289775A).But drilling tool and bit nozzle is seriously worn in abradant jet, or even hair
The down-hole accidents such as raw nozzle falls off, tube wall thorn leaks cause this technology to fail to obtain popularization and application in oil drilling.
The particle impact drilling technology that U.S. Partical Drilling Technology Inc company proposes in recent years
Similar to abradant jet broken rock aided drilling technology (Publication No. US20060016622), technical principle is injected by particle
System is mixed into certain density round steel balls, particle impact cutting crushed rocks after bit port accelerates into drilling fluid.Grain
Return ground is carried by drilling fluid after sub- impact rock and enters particle processing system, repeats to recycle particle use.But the technology is still
The problem of unresolved steel balls abrasion drilling tool is only reduction of abrasion loss, while entire well system is complicated, increases drilling well
Maintenance cost, particle recovery device poor reliability.
Therefore, overcome the drill tool wear problem of original abradant jet auxiliary rock boring method to become this field urgently to solve
Certainly the problem of.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of method of rock-breaking and well-drilling, the drilling well sides
Method can guarantee that nozzle and tube wall be not frayed while ensuring efficiency crushing hard rock, improving rate of penetration.
In order to achieve the above technical purposes, present invention firstly provides a kind of nanometer abrasive drilling fluid, which is bored
Contain nano alumina particles or nano SiO 2 particle in well liquid.
Nanometer abrasive drilling fluid of the invention is a kind of abrasive material drilling fluid, will not wear the drilling tools such as drilling tool and bit nozzle and set
It is standby, and with sanding and polishing drilling tool tube wall, can reduce the roughness of drilling tool tube wall, reduce flowing frictional resistance, so that along Cheng Shui
Power energy loss is few, improves bit hydraulic energy, increases capacity usage ratio.
In order to achieve the above technical purposes, invention further provides the drilling wells that a kind of boring method, the boring method use
Liquid is nanometer abrasive drilling fluid of the invention.
Boring method using nanometer abrasive jet stream auxiliary rock of the invention is a kind of boring method of abradant jet.
Since the partial size of the nano material of use is small, light weight, so that the viscosity of the drilling fluid slurries used is small, the note of pump needed for drilling well
Pressure is low, saves operating cost and operating risk.
Nanometer abrasive drilling fluid of the invention and the boring method using the drilling fluid, are ensuring efficiency crushing hard rock, are mentioning
While high rate of penetration, it can guarantee nozzle and tube wall not by abrasive wear.
Nanometer abrasive drilling fluid of the invention and it can be guaranteed using the boring method of the drilling fluid long lasting for progress
Drillng operation reduces the time for making a trip and replacing tubing string, drill bit, improves the working efficiency of drilling well.
Detailed description of the invention
Fig. 1 is the density and surge relation curve of nanometer abrasive drilling fluid in the embodiment of the invention.
Fig. 2 is that the impact velocity and surge relationship of nanometer abrasive drilling fluid in the embodiment of the invention are bent
Line.
Specific embodiment
In order to which technical characteristic, purpose and the beneficial effect to embodiment of the present invention are more clearly understood, now to this
Technical solution in invention embodiment carries out clear, complete description, it is clear that described embodiment is of the invention one
Some embodiments, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Drilling fluid is that have multiple functions in drilling process to meet the total of the various circulation of fluids of drilling well need of work
Claim.
Abradant jet drilling technology refers to while bit drilling machinery broken rock, is added into drilling fluid a certain amount of
Hard particles, and impact in the form of high-speed jet by bit nozzle, be crushed bottom rock, reach auxiliary rock purpose, into
And rate of penetration is increased substantially, accelerate oil/gas well and goes into operation.
The specific embodiment of the present invention provides a kind of nanometer abrasive drilling fluid, contains in the nanometer abrasive drilling fluid
There are nano alumina particles or nano SiO 2 particle.The drilling fluid of the nanometer abrasive is by the alumina particle of Nano grade
Or silica dioxide granule and the drilling fluid River Bank Stability of certain viscosity are at certain density nanometer abrasive drilling fluid.The nanometer abrasive
Drilling fluid is a kind of abradant jet drilling fluid, using nano particle as abrasive grain, is impacted in the form of high-frequency jet, is broken
Bottom rock reaches auxiliary rock purpose, can increase substantially rate of penetration, accelerates oil/gas well and goes into operation.
In the specific embodiment of the present invention, with the sum of the percent by volume of each raw material of nanometer abrasive drilling fluid
For 100% meter, the additive amount of nano alumina particles or nano SiO 2 particle can be 5%-10%；Specifically, nanometer
The additive amount of alumina particle or nano SiO 2 particle can be 6%, 7%, 8%, 9%.
In the specific embodiment of the present invention, the nano alumina particles of use or nano SiO 2 particle
As long as partial size Nano grade.Further, the nano alumina particles or nano SiO 2 particle of use
Partial size is 500nm-1000nm.Specifically, the partial size of nano alumina particles or nano SiO 2 particle can for 560nm,
600nm,650nm,700nm,750nm,800nm,900nm,950nm.In normal abradant jet, to the mill of drilling tool and bit nozzle
The shear action mainly due to the abrasive grain of high speed to it is damaged, the abrasive grain used in present embodiment is nanometer
Grain, partial size is smaller, and shear action is weaker and more uniform, therefore, not but not wears drilling tool and bit nozzle, instead may be used
The tube wall of sanding and polishing drilling tool.
In the specific embodiment of the present invention, there is no special want to the hardness of the nano alumina particles of use
It asks.In order to realize the purpose of efficient auxiliary rock, the Mohs' hardness of the nano alumina particles used can be 8.
It is exactly to carry abrasive grain in one of the effect of the specific embodiment of the present invention, abradant jet drilling fluid,
In the specific embodiment of the present invention, the nano particle of use serves as abrasive grain, because the partial size of nano particle is small,
Light weight, relative to normal abradant jet, which suspends drilling fluid slurries required for nano particle
Viscosity is with regard to small.Specifically, the drilling fluid slurries used in the nanometer abrasive drilling fluid in the specific embodiment of the present invention
Viscosity can be 10mPas-50mPas；For example, the viscosity of drilling fluid slurries can for 20mPas, 30mPas,
40mPa·s.When the partial size of nano particle is 1000nm, the viscosity minimum of the drilling fluid slurries used can be 40mPas.
In the specific embodiment of the present invention, the density of the nanometer abrasive drilling fluid is 2600kg/m3-
4000kg/m3.Nanometer abrasive density is to influence another key factor of surge, and the excessively high drilling fluid that is unfavorable for of abrasive density is taken
Band suspension grinding material particle, as shown in Figure 1, it is that nanometer abrasive is close that the density of surge and nanometer abrasive drilling fluid, which is positively correlated,
Spend 2600kg/m3-4000kg/m3It is preferred range.
A kind of boring method is provided in another embodiment of the present invention, the drilling fluid which uses
For the nanometer abrasive drilling fluid in the specific embodiment of the present invention.
Specifically, which carries out in such a way that this field is conventional.For example, may include walking in detail below
It is rapid:
The drilling fluid slurries of certain viscosity and nano particle are subjected to mixture, form certain density nanometer abrasive drilling well
Liquid；
Above-mentioned nanometer abrasive drilling fluid is pumped across manifold of ground, drilling rod, bit nozzle after the pressurization of ground high-pressure pump
Deng forming high speed nanometer abrasive jet stream through bit nozzle throttling action, form micro-crack in rock surface, accelerate the broken of rock
It is bad, mechanical bit teeth fractured rock is assisted, and then improve bit speed.
When carrying out drilling well using above-mentioned drilling fluid, High pressure water jet nozzle is can be set in drill bit used.Wherein, nozzle
Number, which can according to need, voluntarily to be selected.For example, 3,4 or 5 nozzles can be set.Further, using receiving
When rice abradant jet techno-shock rock, it is desirable that the effluxvelocity of bit nozzle is higher than normal abradant jet.Wherein, drill bit
The effluxvelocity of nozzle can be 250m/s-500m/s；For example, the effluxvelocity of bit nozzle can for 250m/s, 300m/s,
350m/s,400m/s,450m/s,500m/s.The surge meter that the particle impacting rock surface of nanometer abrasive drilling fluid generates
Calculate result.As shown in Figure 2, surge and the impact velocity of nanometer abrasive drilling fluid are positively correlated and are.When impact velocity is
When 250-500m/s, 220-770MPa surge can produce, much larger than the resistance to compression of the hard rocks such as carbonate rock, granite, shale
Intensity (common compressive strength of rock 100-300MPa), therefore can compressive-shear crack damage, auxiliary drill effectively be generated in rock surface
Head efficient rock-breaking.
Embodiment 1
A kind of boring method of nanometer abrasive jet stream broken rock is present embodiments provided, specifically includes the following steps:
Step 1: configuration nanometer abrasive drilling fluid, i.e. selection partial size 500-1000nm, density 2600kg/m3, volumetric concentration
It is uniform for 5% nanometer abrasive silica and drilling fluid slurries (raw material of drilling fluid slurries are as follows: water, drag reducer, guanidine that glue)
It is stirred；
Step 2: selecting the drill bit for having High pressure water jet nozzle, and drilling rod lower part is connected with drill bit, drilling rod top and ground
High-pressure pump is connected, and constitutes flow circuit channel；
Step 3: opening ground high pressure pump group, and nanometer abrasive drilling fluid is pumped at bit nozzle through drilling rod, and with
The pattern of 250m/s ejects drill bit, and nanometer abrasive high speed impact, broken bottom rock assist drill bit mechanical rock breaking.
Step 4: boring up at predetermined well depth, termination of pumping, above mentions drill bit, completes drillng operation.
Above embodiments explanation, nanometer abrasive drilling fluid of the invention and the boring method using the drilling fluid, are ensuring
While efficiency crushing hard rock, raising rate of penetration, it can guarantee nozzle and tube wall not by abrasive wear.
Claims (10)
1. a kind of nanometer abrasive drilling fluid, which is characterized in that contain nano alumina particles or two in the nanometer abrasive drilling fluid
Silica nano particle.
2. nanometer abrasive drilling fluid according to claim 1, which is characterized in that with each raw material of nanometer abrasive drilling fluid
The sum of percent by volume is counted for 100%, and the additive amount of the nano alumina particles or nano SiO 2 particle is 5%-
10%.
3. nanometer abrasive drilling fluid according to claim 1 or 2, which is characterized in that the nano alumina particles or two
The partial size of silica nano particle is 500nm-1000nm.
4. nanometer abrasive drilling fluid according to claim 1, which is characterized in that the Mohs of the nano alumina particles is hard
Degree is 8.
5. nanometer abrasive drilling fluid according to claim 1, which is characterized in that the drilling fluid in the nanometer abrasive drilling fluid
The viscosity of slurries is 10mPas-50mPas.
6. nanometer abrasive drilling fluid according to claim 1, which is characterized in that the density of the nanometer abrasive drilling fluid is
2600kg/m3-4000kg/m3。
7. a kind of boring method, which is characterized in that the drilling fluid that the boring method uses is described in any one of claims 1-6
Nanometer abrasive drilling fluid.
8. boring method according to claim 7, which is characterized in that drill bit used is provided with high pressure water in the boring method
Jet nozzle.
9. boring method according to claim 8, which is characterized in that the quantity of the nozzle is 3-5.
10. boring method according to claim 8, which is characterized in that the effluxvelocity of the nozzle is 250m/s-
500m/s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708002.4A CN108997986A (en) | 2018-07-02 | 2018-07-02 | A kind of nanometer abrasive drilling fluid and boring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708002.4A CN108997986A (en) | 2018-07-02 | 2018-07-02 | A kind of nanometer abrasive drilling fluid and boring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108997986A true CN108997986A (en) | 2018-12-14 |
Family
ID=64598008
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| CN201810708002.4A Pending CN108997986A (en) | 2018-07-02 | 2018-07-02 | A kind of nanometer abrasive drilling fluid and boring method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405429A (en) * | 2002-10-30 | 2003-03-26 | 石油大学(华东) | High-pressure rotary jet rock-breaking drilling method |
| KR20120125999A (en) * | 2011-04-27 | 2012-11-20 | 고려대학교 산학협력단 | method for manufacturing silica-ceria, core-shell nanoparticles using microemulsion |
| CN102791952A (en) * | 2009-12-23 | 2012-11-21 | 国际壳牌研究有限公司 | Method of drilling and abrasive jet drilling assembly |
| CN103835653A (en) * | 2014-03-25 | 2014-06-04 | 中国石油大学(北京) | Self-propelled rock debris grinding material straight-spinning jet mixing flow drill bit |
-
2018
- 2018-07-02 CN CN201810708002.4A patent/CN108997986A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405429A (en) * | 2002-10-30 | 2003-03-26 | 石油大学(华东) | High-pressure rotary jet rock-breaking drilling method |
| CN102791952A (en) * | 2009-12-23 | 2012-11-21 | 国际壳牌研究有限公司 | Method of drilling and abrasive jet drilling assembly |
| KR20120125999A (en) * | 2011-04-27 | 2012-11-20 | 고려대학교 산학협력단 | method for manufacturing silica-ceria, core-shell nanoparticles using microemulsion |
| CN103835653A (en) * | 2014-03-25 | 2014-06-04 | 中国石油大学(北京) | Self-propelled rock debris grinding material straight-spinning jet mixing flow drill bit |
Non-Patent Citations (2)
| Title |
|---|
| 李根生等: "高压水射流理论及其在石油工程中应用研究进展", 《石油勘探与开发》 * |
| 薛胜雄等: "《高压水射流技术与应用》", 31 August 1998, 机械工业出版社 * |
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Application publication date: 20181214 |