CN109135697A - Ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof - Google Patents
Ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof Download PDFInfo
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- CN109135697A CN109135697A CN201811090192.4A CN201811090192A CN109135697A CN 109135697 A CN109135697 A CN 109135697A CN 201811090192 A CN201811090192 A CN 201811090192A CN 109135697 A CN109135697 A CN 109135697A
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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
- C09K8/40—Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
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Abstract
The present invention relates to drilling engineering cementing technology fields, it is a kind of ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof, the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, raw material contain 80 parts to 245 parts of weighting material, 35 parts to 60 parts of quartz sand, 4 parts to 12 parts of SILICA FUME, 4 parts to 15 parts of suspending agent, 5 parts to 25 parts of surfactant, 0.6 part to 1.4 parts of drag reducer, 0.5 part of defoaming agent, 100 parts of water in parts by weight.Present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof, by the way that matched material resistant to high temperatures and surfactant is added, to improve the heat-resisting property of slurry and containing the flushing effect under oil environment.Present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, not only slurry stability, good flowing properties, can effectively ensure that oil displacement efficiency under oleophylic environment, be more suitable for oil base drilling fluid under hot environment, have the advantages that resistant to high temperatures and oil displacement efficiency is high.
Description
Technical field
It is a kind of ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and its preparation the present invention relates to drilling engineering cementing technology field
Method.
Background technique
At present worldwide, unconventional petroleum resources amount has been over conventional petroleum resources amount, wherein deep
The exploitation of well, ultradeep well, shale gas has changed World's Oil and Gas Resources distribution.Up to the present, oil-base mud is resistant to high temperatures, salt resistance calcium
It corrodes, it is good, small to formation damage to be conducive to wellbore stability, lubricity, has been used in all kinds of drilling platforms.
Oil well is crept into using oil base drilling fluid, sticks one layer of oil base drilling fluid and oil on the borehole wall and casing in finishing drilling
Film, conventional prepad fluid are low to oil film flush efficiency on the borehole wall, casing, poor with oil base drilling fluid intermiscibility, replacement efficiency and cement
Ring interface agglutination is not high, will lead to engineering accident when serious.How to improve prepad fluid to be attached to the borehole wall, oil film on casing
Flush efficiency is oil base drilling fluid well cementation urgent problem.
Summary of the invention
The present invention provides a kind of ultra high density displacement of reservoir oil insulating liquids resistant to high temperatures and preparation method thereof, overcome above-mentioned existing skill
The deficiency of art can effectively solve under deep-well, ultradeep well, shale gas well oil base drilling fluid environment, and oil base drilling fluid stability is not
Well, the problem that oil displacement efficiency is low, oil displacement efficiency is poor and causes cementing quality not high.
Technical solution of the present invention first is that being realized by following measures: a kind of ultra high density displacement of reservoir oil isolation resistant to high temperatures
Liquid, raw material contain 80 parts to 245 parts of weighting material in parts by weight, 35 parts to 60 parts of quartz sand, 4 parts to 12 parts of SILICA FUME, hang
Floating 4 parts to 15 parts of agent, 5 parts to 25 parts of surfactant, 0.6 part to 1.4 parts of drag reducer, 0.5 part of defoaming agent, 100 parts of water.
Here is further optimization or/and improvement of one of the above technical solutions of the invention:
Above-mentioned weighting material is Iron Ore Powder, barite, more than one in chromium manganese powder.
Above-mentioned quartz sand particle diameter is 125 μm to 160 μm, and SiO in quartz sand2Weight percentage be 90% to
98%.
Above-mentioned SILICA FUME particle diameter model is 0.15 μm to 0.5 μm, and SiO in SILICA FUME2Weight percentage is 90%
To 98%.
Above-mentioned suspending agent is carboxymethyl cellulose, more than one in polyanion cellulose.
Above-mentioned drag reducer is the mixture of acetonformaldehyde condensation polymer and melamine resin.
Above-mentioned defoaming agent is the mixture of phosphate and glycerin polyether surfactant.
Above-mentioned ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, by the desired amount of exacerbation material
Material, quartz sand and SILICA FUME are uniformly mixed, and obtain solid mixture material；Second step, by the desired amount of suspending agent, surface-active
Agent, drag reducer, defoaming agent and water are uniformly mixed, and obtain liquid mixture material；Third step mixes solid mixture material and liquid
Material is mixed and stirred for uniformly, obtaining ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
Technical solution of the present invention second is that being realized by following measures: ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures
Preparation method carries out as steps described below: the desired amount of weighting material, quartz sand and SILICA FUME are uniformly mixed, obtain by the first step
To solid mixture material；The desired amount of suspending agent, surfactant, drag reducer, defoaming agent and water are uniformly mixed by second step,
Obtain liquid mixture material；Solid mixture material and liquid mixture material are mixed and stirred for uniformly, obtaining resistant to high temperatures by third step
Ultra high density displacement of reservoir oil insulating liquid.
Present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof, by being added in ultra high density insulating liquid
Matched material resistant to high temperatures and surfactant, to improve the heat-resisting property of slurry and containing the flushing effect under oil environment
Fruit.Present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, not only slurry stability, good flowing properties can under oleophylic environment
Oil displacement efficiency is effectively ensured, is more suitable for oil base drilling fluid under hot environment, obvious, the resistant to high temperatures and displacement of reservoir oil effect with oil displacement efficiency
The high advantage of rate.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.It is previously mentioned various chemical reagent and chemical article in the present invention unless otherwise specified, is public in the prior art
Know common chemical reagent and chemical article；Percentage in the present invention does not have specified otherwise such as, is mass percent；This hair
It is the aqueous solution that solvent is water, for example, hydrochloric acid solution is aqueous hydrochloric acid solution if the solution in bright is without specified otherwise；This
Room temperature, room temperature in invention refer generally to 15 DEG C to 25 DEG C of temperature, are commonly defined as 25 DEG C.
The present invention will be further described below with reference to examples:
Embodiment 1: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, raw material contain in parts by weight 80 parts to 245 parts of weighting material,
35 parts to 60 parts of quartz sand, 4 parts to 12 parts of SILICA FUME, 4 parts to 15 parts of suspending agent, 5 parts of surfactant to 25 parts, drag reducer
0.6 part to 1.4 parts, 0.5 part of defoaming agent, 100 parts of water.
Embodiment 2: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, raw material contain in parts by weight 80 parts of weighting material or
245 parts, 35 parts or 60 parts of quartz sand, 4 parts or 12 parts of SILICA FUME, 4 parts or 15 parts of suspending agent, 5 parts or 25 parts of surfactant, subtract
0.6 part or 1.4 parts of resist, 0.5 part of defoaming agent, 100 parts of water.
Embodiment 3: as the optimization of above-described embodiment, weighting material be Iron Ore Powder, barite, in chromium manganese powder one kind with
On.
Embodiment 4: as the optimization of above-described embodiment, quartz sand particle diameter is 125 μm to 160 μm, and in quartz sand
SiO2Weight percentage is 90% to 98%.
Embodiment 5: as the optimization of above-described embodiment, SILICA FUME particle diameter model is 0.15 μm to 0.5 μm, and SILICA FUME
Middle SiO2Weight percentage is 90% to 98%.
Embodiment 6: as the optimization of above-described embodiment, suspending agent is carboxymethyl cellulose, one in polyanion cellulose
Kind or more.
Embodiment 7: as the optimization of above-described embodiment, drag reducer is acetonformaldehyde condensation polymer and melamine resin
Mixture.
Embodiment 8: as the optimization of above-described embodiment, defoaming agent is the mixing of phosphate and glycerin polyether surfactant
Object.
Embodiment 9: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, will be the desired amount of
Weighting material, quartz sand and SILICA FUME are uniformly mixed, and obtain solid mixture material；Second step, by the desired amount of suspending agent, surface
Activating agent, drag reducer, defoaming agent and water are uniformly mixed, and obtain liquid mixture material；Third step, by solid mixture material and liquid
Mixed material is mixed and stirred for uniformly, obtaining ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
In present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof, the inertia that weighting material has makes it not
Slurry reaction is participated in, the low slope soil content having enables ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures uniformly to disperse and reduce
The thixotropic effect of slurry；In present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, quartz sand and micro- silicon keep superelevation resistant to high temperatures close
Degree displacement of reservoir oil insulating liquid have a dual effect, on the one hand make slurry grain composition, it is tightly packed more rationally, pass through physical method
Slurry stability is improved, on the other hand the performance resistant to high temperatures by quartz sand and micro- silicon, to improve slurry temperature resistance；The present invention is anti-
In high temperature ultra high density displacement of reservoir oil insulating liquid, suspending agent and water react to form macromolecular chain, improve slurry by chemical method
Stability；In present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, surfactant participates in reaction under oleophylic environment, final to moisten
Wet reversion reaches hydrophilic environment, to improve oil displacement efficiency.
Embodiment 10: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, and 80 parts are aggravated
Material, 35 parts of quartz sands are uniformly mixed with 4 parts of SILICA FUMEs, obtain solid mixture material；Second step, by 4 parts of suspending agents, 5 parts of tables
Face activating agent, 0.6 portion of drag reducer, 0.5 part of defoaming agent and 100 parts of water are uniformly mixed, and obtain liquid mixture material；Third step, will
Solid mixture material and liquid mixture material are mixed and stirred for uniformly, obtaining ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
Embodiment 11: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, and 110 parts are added
Heavy material, 40 parts of quartz sands and 6 parts of SILICA FUMEs are uniformly mixed, and obtain solid mixture material；Second step, by 4 parts of suspending agents, 5 parts
Surfactant, 0.6 portion of drag reducer, 0.5 part of defoaming agent and 100 parts of water are uniformly mixed, and obtain liquid mixture material；Third step,
Solid mixture material and liquid mixture material are mixed and stirred for uniformly, to obtain ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
Embodiment 12: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, and 160 parts are added
Heavy material, 47 parts of quartz sands and 8 parts of SILICA FUMEs are uniformly mixed, and obtain solid mixture material；Second step, by 10 parts of suspending agents, 15
Part surfactant, 1.0 portions of drag reducers, 0.5 part of defoaming agent and 100 parts of water are uniformly mixed, and obtain liquid mixture material；Third
Step, solid mixture material and liquid mixture material are mixed and stirred for uniformly, to obtain ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
Embodiment 13: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, and 210 parts are added
Heavy material, 52 parts of quartz sands and 10 parts of SILICA FUMEs are uniformly mixed, and obtain solid mixture material；Second step, by 12 parts of suspending agents, 20
Part surfactant, 1.2 portions of drag reducers, 0.5 part of defoaming agent and 100 parts of water are uniformly mixed, and obtain liquid mixture material；Third
Step, solid mixture material and liquid mixture material are mixed and stirred for uniformly, to obtain ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
Embodiment 14: the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures obtains as steps described below: the first step, and 245 parts are added
Heavy material, 60 parts of quartz sands and 12 parts of SILICA FUMEs are uniformly mixed, and obtain solid mixture material；Second step, by 15 parts of suspending agents, 25
Part surfactant, 1.4 portions of drag reducers, 0.5 part of defoaming agent and 100 parts of water are uniformly mixed, and obtain liquid mixture material；Third
Step, solid mixture material and liquid mixture material are mixed and stirred for uniformly, to obtain ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
The according to embodiments of the present invention 10 ultra high density displacement of reservoir oil insulating liquids resistant to high temperatures obtained to embodiment 14 and the conventional displacement of reservoir oil
Insulating liquid performance data comparison such as table 1.As shown in Table 1, the ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures has high temperature resistant, stabilization
The feature that property is good, oil displacement efficiency is high.
In conclusion present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures and preparation method thereof, by ultra high density every
Matched material resistant to high temperatures and surfactant are added in chaotropic, to improve the heat-resisting property of slurry and containing oil environment
Under flushing effect.Present invention ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, not only slurry stability, good flowing properties, in oleophylic
It can effectively ensure that oil displacement efficiency under environment, be more suitable for oil base drilling fluid under hot environment, obvious, the anti-height with oil displacement efficiency
The high advantage of mild oil displacement efficiency.
The above technical features constitute embodiments of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Claims (9)
1. a kind of ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures, it is characterised in that raw material contains 80 parts of weighting material extremely in parts by weight
245 parts, 35 parts to 60 parts of quartz sand, 4 parts to 12 parts of SILICA FUME, 4 parts to 15 parts of suspending agent, 5 parts to 25 parts of surfactant, subtract
0.6 part to 1.4 parts of resist, 0.5 part of defoaming agent, 100 parts of water.
2. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures according to claim 1, it is characterised in that weighting material be Iron Ore Powder,
One or more of barite, chromium manganese powder.
3. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures according to claim 1 or 2, it is characterised in that quartz sand particle diameter
It is 125 μm to 160 μm, and SiO in quartz sand2Weight percentage is 90% to 98%.
4. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures according to claim 1 or 2 or 3, it is characterised in that SILICA FUME particle
Diameter model is 0.15 μm to 0.5 μm, and SiO in SILICA FUME2Weight percentage is 90% to 98%.
5. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures according to claim 1 or 2 or 3 or 4, it is characterised in that suspending agent is
One or more of carboxymethyl cellulose, polyanion cellulose.
6. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that drag reduction
Agent is the mixture of acetonformaldehyde condensation polymer and melamine resin.
7. ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that disappear
Infusion is the mixture of phosphate and glycerin polyether surfactant.
8. the according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 ultra high density displacement of reservoir oil insulating liquids resistant to high temperatures, it is characterised in that
Obtain as steps described below: the desired amount of weighting material, quartz sand and SILICA FUME are uniformly mixed by the first step, and it is mixed to obtain solid
Close material；The desired amount of suspending agent, surfactant, drag reducer, defoaming agent and water are uniformly mixed, obtain liquid by second step
Mixed material；Solid mixture material and liquid mixture material are mixed and stirred for uniformly, obtaining ultra high density resistant to high temperatures by third step
Displacement of reservoir oil insulating liquid.
9. the preparation of ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures described in one kind according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7
Method, it is characterised in that carry out as steps described below: the first step mixes the desired amount of weighting material, quartz sand and SILICA FUME
Uniformly, solid mixture material is obtained；Second step mixes the desired amount of suspending agent, surfactant, drag reducer, defoaming agent and water
It closes uniformly, obtains liquid mixture material；Solid mixture material and liquid mixture material are mixed and stirred for uniformly, obtaining by third step
To ultra high density displacement of reservoir oil insulating liquid resistant to high temperatures.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643334A (en) * | 2019-10-08 | 2020-01-03 | 中国石油集团渤海钻探工程有限公司 | Nanoparticle reinforced well cementation spacer fluid |
| CN112375551A (en) * | 2020-12-08 | 2021-02-19 | 中国石油天然气集团有限公司 | Oil-based spacer fluid for well cementation and cement injection and preparation method thereof |
| CN113667463A (en) * | 2021-09-08 | 2021-11-19 | 中石化石油工程技术服务有限公司 | Oil displacement isolation liquid for medium-low temperature oil-based drilling fluid and preparation method thereof |
| CN114426816A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | High-temperature-resistant well cementation spacer fluid and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643334A (en) * | 2019-10-08 | 2020-01-03 | 中国石油集团渤海钻探工程有限公司 | Nanoparticle reinforced well cementation spacer fluid |
| CN114426816A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | High-temperature-resistant well cementation spacer fluid and preparation method and application thereof |
| CN112375551A (en) * | 2020-12-08 | 2021-02-19 | 中国石油天然气集团有限公司 | Oil-based spacer fluid for well cementation and cement injection and preparation method thereof |
| CN113667463A (en) * | 2021-09-08 | 2021-11-19 | 中石化石油工程技术服务有限公司 | Oil displacement isolation liquid for medium-low temperature oil-based drilling fluid and preparation method thereof |
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