CN106479459A - A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof - Google Patents
A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof Download PDFInfo
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- CN106479459A CN106479459A CN201610764217.9A CN201610764217A CN106479459A CN 106479459 A CN106479459 A CN 106479459A CN 201610764217 A CN201610764217 A CN 201610764217A CN 106479459 A CN106479459 A CN 106479459A
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- blocking agent
- thin blocking
- geminal fibers
- fibers
- geminal
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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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
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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
- C09K8/03—Specific additives for general use in well-drilling compositions
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of geminal fibers is with thin blocking agent is bored, including following components：In parts by mass, 100 parts of micas, 30 80 parts of wood fibres, 20 60 parts of brucite fibers, the geminal fibers are missed for permeability loss or microcrack with thin blocking agent is bored, leakage particular for Luo He group and Liu family's ditch group stratum, effect with good fast blockage, for low pressure-bearing stratum, can prevent the leakage of drilling fluid, and raw material is easy to get, preparation process is simple, use cost are cheap, also do not affect the rheological characteristic of drilling fluid.
Description
Technical field
The present invention relates to the additive for drilling fluid of field of oil drilling, and in particular to a kind of geminal fibers with bore thin blocking agent and its
Preparation method.
Background technology
In oil drilling production, as stratum there may be hole and crack, drilling fluid can be lost in from hole or crack
To in stratum.Process to leakage is usually " anti-blocking combination ", prevents being exactly precautionary measures, by adding inorganic agent, closure in advance
The nearly borehole wall, also not up to control the leakage hole of degree and crack.Block up and just refer to leak stopping.What drill-feeding plugging agent was conventional has uniaxial pressure
Diverting agent, sawdust, pons hematoma agent, mica etc., some sealing agents have certain plugging while drilling effect, but there is cost relatively
The problems such as height, complex process, leakproof, plugging effect be not good, the particularly leak-proof leak-stopping to Changqing oilfields Liu family ditch group stratum are imitated
Fruit is not good.
Content of the invention
In order to overcome problem above, the present invention proposes a kind of geminal fibers with thin blocking agent of brill and preparation method thereof, the present invention
Manufacturing process is simple, with low cost, easy to use, plugging effect is good.
A kind of fracturing fluid of offer is the technical scheme is that, including following components：In parts by mass, 100 parts of micas,
30-80 part wood fibre, 20-60 part brucite fiber.
The mica is sericite, muscovite, phlogopite, lepidolite, one or more in biotite.
The average grain diameter of the mica is 20-100 mesh.
The wood fibre is willow wood-fibred, willow wood-fibred, pear tree wood-fibred, the one kind or several in Chinese scholartree wood-fibred
Kind.
The average grain diameter of the wood fibre is 20-40 mesh.
The average fiber length of the brucite fiber is 1-5mm.
A kind of geminal fibers is comprised the following steps with the preparation method for boring thin blocking agent：
Step 1) prepare mica：One or more in the mica are taken, and particle diameter are crushed to for 20-100 mesh；
Step 2) prepare wood fibre：Trunk branch is taken, is soaked in acid solution, soak time is 1-30 hour,
Trunk branch after acid treatment cleans with water to dry, pulverize after 7-8 to particle diameter to pH value be 20-40 mesh；
Step 3) prepare brucite fiber：Brucite fiber is taken, is crushed to fibre length 1-5mm；
Step 4) take step 1) in gained 100 mass parts of mica, step 2) in gained wood fibre 30-80 mass
Part, step 3) in gained brucite fiber 20-60 mass parts, above component is mixed, obtains geminal fibers thin stifled with boring
Agent.
The step 2) in acid solution be hydrochloric acid, formic acid, sulfuric acid, one or more in perchloric acid.
The step 2) in acid solution mass concentration be 2-25%, soaking temperature be 15-95 DEG C.
When the described geminal fibers is applied in drilling fluid with the thin blocking agent of brill, the geminal fibers is mixed with drilling fluid with thin blocking agent is bored
Close, when drop ply thickness is less than 100 meters, the 5-100kg geminal fibers is disposably added per cubic meter of drilling fluid with boring thin blocking agent, when
When drop ply thickness often increases by 100 meters, the 5-30kg geminal fibers is disposably added per cubic meter of drilling fluid again with the thin blocking agent of brill.
Beneficial effects of the present invention：
This geminal fibers of the present invention is missed for permeability loss or microcrack, particular for Lip river with thin blocking agent is bored
River group and the leakage on Liu family's ditch group stratum, the effect with good fast blockage, for low pressure-bearing stratum, drilling fluid can be prevented
Leakage, and raw material is easy to get, and preparation process is simple, use cost are cheap, also do not affect the rheological characteristic of drilling fluid
Specific embodiment
Embodiment 1：
In order to overcome existing issue, the present invention proposes a kind of geminal fibers with thin blocking agent is bored, including following components：By quality
Part meter, 100 parts of micas, 30-80 part wood fibre, 20-60 part brucite fibers.
The mica is sericite, muscovite, phlogopite, lepidolite, one or more in biotite.Mica is at this
Bright geminal fibers is filled in the gap of the mesh skeleton that long fibre is barricaded as with boring as filling particulate in thin blocking agent, is formed relatively
Fine and close slug, reduces the drilling fluid and Free water for penetrating into stratum.Hole and formation pore or microcrack according to fiber rack
Size, be 20-100 mesh typically to the Particle size requirements of mica.
The wood fibre is willow wood-fibred, willow wood-fibred, pear tree wood-fibred, the one kind or several in Chinese scholartree wood-fibred
Kind.Wood fibre is velvet-like long fibre, with stronger pliability, the present invention geminal fibers with boring in thin blocking agent, play
The effect of skeleton structure.According to formation pore or the size of microcrack, it is 20-40 mesh typically to the Particle size requirements of wood fibre
The brucite fiber is flexible long fibre, in bar-shaped, deformable is filled in formation pore or microcrack.According to
Formation pore or the size of microcrack, typically require it is 1-5mm to the fibre length of brucite fiber.
The sericite, muscovite, phlogopite, lepidolite, biotite, willow wood, willow wood, pear tree wood, Chinese scholartree wood, water
Magnesite fiber all directly can bought on the market, be not explained in detail here.
This geminal fibers of the present invention is comprised the following steps with the preparation method for boring thin blocking agent：
Step 1) prepare mica：One or more in the mica are taken, and particle diameter are crushed to for 20-100 mesh；
Step 2) prepare wood fibre：Trunk branch is taken, is soaked in acid solution, soak time is 1-30 hour,
Trunk branch after acid treatment cleans with water to dry, pulverize after 7-8 to particle diameter to pH value be 20-40 mesh；
Step 3) prepare brucite fiber：Brucite fiber is taken, is crushed to fibre length 1-5mm；
Step 4) take step 1) in gained 100 mass parts of mica, step 2) in gained wood fibre 30-80 mass
Part, step 3) in gained brucite fiber 20-60 mass parts, above component is mixed, obtains geminal fibers thin stifled with boring
Agent.
When the described geminal fibers is applied in drilling fluid with the thin blocking agent of brill, the geminal fibers is mixed with drilling fluid with thin blocking agent is bored
Close, when drop ply thickness is less than 100 meters, the 5-100kg geminal fibers is disposably added per cubic meter of drilling fluid with boring thin blocking agent, when
When drop ply thickness often increases by 100 meters, the 5-30kg geminal fibers is disposably added per cubic meter of drilling fluid again with the thin blocking agent of brill.
This geminal fibers of the present invention is missed for permeability loss or microcrack, particular for Lip river with thin blocking agent is bored
River group and the leakage on Liu family's ditch group stratum, the effect with good fast blockage, for low pressure-bearing stratum, drilling fluid can be prevented
Leakage, and raw material is easy to get, and preparation process is simple, use cost are cheap, also do not affect the rheological characteristic of drilling fluid.
Embodiment 2：
A kind of geminal fibers is present embodiments provided with thin blocking agent is bored, including following components：In parts by mass, 100 parts of thin,tough silk clouds
Female, 80 parts of willow wood-fibreds, 60 parts of brucite fibers.
The geminal fibers is as follows with the preparation method for boring thin blocking agent：
Step 1) 100 parts of sericites in powder are broken to particle diameter 20-100 mesh；
Step 2) the trunk branch of 80 parts of willow wood is immersed in mass concentration 25%, in the hydrochloric acid that 95 DEG C of temperature, soak
After 12 hours, it is 7 that acidated trunk branch water is cleaned to pH value, then dries, by the trunk of dried willow wood
Branch is crushed to particle diameter 20-40 mesh, obtains willow wood-fibred；
Step 3) 60 parts of brucite fibers are crushed to fibre length 1-5mm；
Step 4) by the brucite fiber of 100 parts of sericites, 80 parts of willow wood-fibreds and 60 parts, mixed with kneader
, geminal fibers is obtained with the thin blocking agent of brill.
By the geminal fibers with boring thin blocking agent and drilling fluid mixed, and disposably add per cubic meter of drilling fluid the geminal fibers with
The quality for boring thin blocking agent is 5kg.
Embodiment 3：
The geminal fibers described in a kind of same embodiment 2 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 50kg with the quality for boring thin blocking agent.
Embodiment 4：
The geminal fibers described in a kind of same embodiment 3 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 100kg with the quality for boring thin blocking agent.
Embodiment 5：
A kind of geminal fibers is present embodiments provided with thin blocking agent is bored, including following components：In parts by mass, 50 parts of thin,tough silk clouds
Female, 50 parts of muscovites, 55 parts of willow wood-fibreds, 40 parts of brucite fibers.
The geminal fibers is as follows with the preparation method for boring thin blocking agent：
Step 1) 50 parts of sericites, 50 parts of white mica powders are broken to particle diameter 20-100 mesh；
Step 2) the trunk branch of 55 parts of willow wood is immersed in mass concentration 25%, in the sulfuric acid that 95 DEG C of temperature, soak
After 12 hours, it is 7 that acidated trunk branch is cleaned to pH value, then dries, by the trunk branch of dried willow wood
Particle diameter 20-40 mesh is crushed to, obtains willow wood-fibred；
Step 3) 40 parts of brucite fibers are crushed to fibre length 1-5mm；
Step 4) by 50 parts of sericites, 50 parts of muscovites, the brucite fiber of 55 parts of willow wood-fibreds and 40 parts, with pinching
Conjunction machine is mixed, and obtains geminal fibers with the thin blocking agent of brill.
By the geminal fibers with boring thin blocking agent and drilling fluid mixed, and disposably add per cubic meter of drilling fluid the geminal fibers with
The quality for boring thin blocking agent is 5kg.
Embodiment 6：
The geminal fibers described in a kind of same embodiment 5 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 50kg with the quality for boring thin blocking agent.
Embodiment 7：
The geminal fibers described in a kind of same embodiment 5 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 100kg with the quality for boring thin blocking agent.
Embodiment 8：
A kind of geminal fibers is present embodiments provided with thin blocking agent is bored, including following components：In parts by mass, 100 parts of black clouds
Female, 30 parts of pear tree wood-fibreds, 20 parts of brucite fibers.
The geminal fibers is as follows with the preparation method for boring thin blocking agent：
Step 1) 100 parts of sericites in powder are broken to particle diameter 20-100 mesh；
Step 2) the trunk branch of 30 parts of pear tree wood is immersed in mass concentration 25%, in the hydrochloric acid that 95 DEG C of temperature, soak
After 12 hours, it is 7 that acidated trunk branch is cleaned to pH value, then dries, by the trunk branch of dried willow wood
Particle diameter 20-40 mesh is crushed to, obtains pear tree wood-fibred；
Step 3) 20 parts of brucite fibers are crushed to fibre length 1-5mm；
Step 4) by the brucite fiber of 100 parts of sericites, 30 parts of pear tree wood-fibreds and 20 parts, mixed with kneader
, geminal fibers is obtained with the thin blocking agent of brill.
By the geminal fibers with boring thin blocking agent and drilling fluid mixed, and disposably add per cubic meter of drilling fluid the geminal fibers with
The quality for boring thin blocking agent is 5kg.
Embodiment 9：
The geminal fibers described in a kind of same embodiment 8 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 50kg with the quality for boring thin blocking agent.
Embodiment 10：
The geminal fibers described in a kind of same embodiment 8 is present embodiments provided with thin blocking agent is bored, the geminal fibers is thin stifled with boring
Agent and drilling fluid mixed, and disposably to add the geminal fibers per cubic meter of drilling fluid be 100kg with the quality for boring thin blocking agent.
By the geminal fibers described in above-described embodiment 2 10 with mixed serum performance and the comparative example for boring thin blocking agent and drilling fluid
1) and comparative example 2) performance according to SY-T 5621-1993《Test procedure for drilling fluids》Carry out the test of wastage.
Wherein, comparative example 1) it is drilling fluid；Comparative example 2) for unidirectional pressure temporary plugging additive and drilling fluid mixed serum, while
The quality for disposably adding the unidirectional pressure temporary plugging additive per cubic meter of drilling fluid is 30kg.
Leakage quantity measuring method is as follows：The building sand for cleaning drying is taken, is sieved, weighs the sand between 10-20 mesh
100g, loads in HTHP dehydration tank, sand is paved, lentamente rinses sand with the clear water of 200ml, treats that clear water is discharged
Afterwards, pour slurry to be measured into, at 70 DEG C, when pressure is 3MPa, determine the wastage of 45min.Experimental result see the table below：
Experimental result shows that geminal fibers of the present invention is added in drilling fluid the rheological characteristic to drilling fluid and pH with thin blocking agent is bored
Value impact all very littles, the effect with filtrate reducing.Comparative example 1) in well slurry all miss, comparative example 2) in temporary containing uniaxial pressure
The drilling fluid of blocking agent has certain leak preventing effect, but not as containing geminal fibers of the present invention with the brill for boring thin blocking agent in embodiment 2-10
Well liquid good leak-proof effect.This experiment also illustrates geminal fibers of the present invention with the difference of three constituent contents, each group gradation in the thin blocking agent of brill
The difference in footpath is all also different to leak stopping leak preventing effect, during Specific construction, also needs, according to concrete down-hole formation situation, to adjust each component
Ratio and particle size.
Illustration only to the present invention exemplified as above, does not constitute the restriction to protection scope of the present invention, all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (10)
1. a kind of geminal fibers is with the thin blocking agent of brill, it is characterised in that：Including following components：In parts by mass, 100 parts of micas, 30-80
Part wood fibre, 20-60 part brucite fiber.
2. as claimed in claim 1 a kind of geminal fibers with boring thin blocking agent, it is characterised in that：The mica is sericite, white clouds
Mother, phlogopite, lepidolite, one or more in biotite.
3. as claimed in claim 2 a kind of geminal fibers with boring thin blocking agent, it is characterised in that：The average grain diameter of the mica is
20-100 mesh.
4. as claimed in claim 1 a kind of geminal fibers with boring thin blocking agent, it is characterised in that：The wood fibre is that willow wood is fine
One or more in dimension, willow wood-fibred, pear tree wood-fibred, Chinese scholartree wood-fibred.
5. as claimed in claim 4 a kind of geminal fibers with boring thin blocking agent, it is characterised in that：The average grain diameter of the wood fibre
For 20-40 mesh.
6. as claimed in claim 1 a kind of geminal fibers with boring thin blocking agent, it is characterised in that：The average fibre of the brucite fiber
Dimension length is 1-5mm.
7. a kind of geminal fibers is with the preparation method for boring thin blocking agent, it is characterised in that：Comprise the following steps：
Step 1) prepare mica：One or more in the mica are taken, and particle diameter are crushed to for 20-100 mesh；
Step 2) prepare wood fibre：Trunk branch is taken, is soaked in acid solution, soak time is 1-30 hour, by acid
It is 20-40 mesh that trunk branch after process water is cleaned and be dry, pulverize after 7-8 to particle diameter to pH value；
Step 3) prepare brucite fiber：Brucite fiber is taken, is crushed to fibre length 1-5mm；
Step 4) take step 1) in gained 100 mass parts of mica, step 2) in gained wood fibre 30-80 mass parts, step
In rapid 3), the brucite fiber 20-60 mass parts of gained, above component is mixed, and obtains geminal fibers with the thin blocking agent of brill.
8. as claimed in claim 7 a kind of geminal fibers with the preparation method for boring thin blocking agent, it is characterised in that：The step 2) in
Acid solution be hydrochloric acid, formic acid, sulfuric acid, one or more in perchloric acid.
9. as claimed in claim 7 a kind of geminal fibers with the preparation method for boring thin blocking agent, it is characterised in that：The step 2) in
The mass concentration of acid solution is 2-25%, and soaking temperature is 15-95 DEG C.
10. application of a kind of geminal fibers with the thin blocking agent of brill in drilling fluid, it is characterised in that：By the geminal fibers with bore thin blocking agent with
Drilling fluid mixed, when drop ply thickness is less than 100 meters, disposably adds the 5-100kg geminal fibers with brill per cubic meter of drilling fluid
Thin blocking agent, when drop ply thickness often increases by 100 meters, disposably adds the 5-30kg geminal fibers again with brill per cubic meter of drilling fluid
Thin blocking agent.
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| CN201610764217.9A CN106479459A (en) | 2016-08-29 | 2016-08-29 | A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof |
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| CN201610764217.9A CN106479459A (en) | 2016-08-29 | 2016-08-29 | A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof |
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Cited By (3)
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|---|---|---|---|---|
| CN108977182A (en) * | 2017-06-02 | 2018-12-11 | 中石化石油工程技术服务有限公司 | A kind of high-adaptability temperature resistance sealing agent and application method |
| CN111065708A (en) * | 2016-12-19 | 2020-04-24 | 沙特阿拉伯石油公司 | Ternary fiber blends based on ARC fiber ternary jujube tree waste for moderate to severe leak control |
| CN112480885A (en) * | 2020-12-09 | 2021-03-12 | 成都汉元君业油田技术有限公司 | Bridging synergist for drilling fluid |
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|---|---|---|---|---|
| CN111065708A (en) * | 2016-12-19 | 2020-04-24 | 沙特阿拉伯石油公司 | Ternary fiber blends based on ARC fiber ternary jujube tree waste for moderate to severe leak control |
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