CN108384523A - A kind of high-temperature high-density high stability working solution - Google Patents
A kind of high-temperature high-density high stability working solution Download PDFInfo
- Publication number
- CN108384523A CN108384523A CN201810188438.5A CN201810188438A CN108384523A CN 108384523 A CN108384523 A CN 108384523A CN 201810188438 A CN201810188438 A CN 201810188438A CN 108384523 A CN108384523 A CN 108384523A
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- China
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- parts
- working solution
- density
- temperature
- stability working
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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
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
Abstract
The present invention provides a kind of high-temperature high-density high stability working solution, including following component and its mass fraction：Water：30~60 parts, weighting material：90~180 parts, high temperature resistance surface modifier：5~10 parts, stabilizer：5~8 parts, electric double layer exciting agent：8~10 parts, dispersant：It 8~10 parts, after each component is mixed in proportion, is placed in high-temperature high-density high stability working solution production equipment, is fully ground modification at normal temperatures and reaches to the laser particle analyzer of Malvern 2000 or similar product measurement grain size：D50 be less than 1.5 microns until to get product.Product of the present invention has the characteristics that preferable quality stability, high temperature resistance, high density, rheological characteristic.
Description
Technical field
The present invention relates to oil-gas mining technical fields, and in particular to a kind of to be used for oil drilling, completion and the high temperature of formation testing
High density high stability working solution.
Background technology
During oil-gas mining, need to carry out hydrocarbon test to it after the completion of oil gas well drilling, to obtain target zone
The working solution of production capacity, pressure, temperature, oil gas aqueous nature and geologic information, test process is formation testing liquid, existing formation testing liquid master
If the transformation mud or high density formation testing working solution of drilling mud.Both formation testing liquid have shortcoming：Drilling mud
Mud is transformed, placement for a long time under the high temperature conditions easily occurs heavy dead, and mobility and suspension stability are poor；High density formation testing work
Make liquid, 180 DEG C of temperature resistance highest, more than 180 DEG C, mobility and suspension stability become poor.Therefore, the prior art also needs to
It is further perfect, preferably to meet the needs of market.
Invention content
The object of the present invention is to provide a kind of high-temperature high-density high stability working solutions and preparation method thereof, using high temperature resistance
Surface modifier, electric double layer exciting agent, stabilizer etc. are prepared, and product has preferable quality stability, high temperature resistance, height
The features such as density, rheological characteristic.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of high-temperature high-density high stability working solution, including following component and its mass fraction：Water：30~60 parts, plus
Heavy material：90~180 parts, high temperature resistance surface modifier：5~10 parts, stabilizer：5~8 parts, electric double layer exciting agent：8~10 parts,
Dispersant：8~10 parts.
According to above scheme, the water is common tap water.
According to above scheme, the weighting material is Iron Ore Powder, barite, any one or more than one in calcium carbonate
Mixture.
According to above scheme, the high temperature resistance surface modifier is water soluble polymer surface modifier.
According to above scheme, the stabilizer is polyalcohols, such as two kinds in pentaerythrite, xylitol, mannitol or
Three kinds of mixture.
According to above scheme, the electric double layer exciting agent is the charge exciting agent that can excite micro-nano granules.
According to above scheme, the dispersant is a kind of derivative of PP type, such as Sodium Polyacrylate, polyacrylamide
Any one or both mixture.
The preparation method of the present invention：By water, weighting material, high temperature resistance surface modifier, dispersant, stabilizer, electric double layer
Exciting agent mixes in proportion, and is placed in high-temperature high-density high stability working solution production equipment, is fully ground at normal temperatures
It is modified to reach to the laser particle analyzer of Malvern 2000 or similar product measurement grain size：D50 be less than 1.5 microns until to get
Product.
Weighting material main function is to aggravate in the present invention, improves the density of system；High temperature resistance surface modifier is in high temperature
Under the conditions of, the surface of weighting agent particles is modified still effective；Dispersant main function is to keep each material in system uniform
Be dispersed in medium water；Stabilizer main function is the stability of guarantee system, and system is played under long-time high-temperature condition
In stable condition effect；Electric double layer exciting agent plays the suspension stability for improving formation testing liquid；Mutually collaboration is made between each inorganic agent
With one rounded system of final composition.
The beneficial effects of the invention are as follows：
The weighting material of the present invention, high temperature resistance surface modifier, stabilizer, electric double layer exciting agent, between dispersant mutually
Synergistic effect, forms a rounded system, and product quality stability is good, grain size is small, and D50 is less than 1.5 microns, high temperature resistance
It is good, up to 220 DEG C or more, density height, up to 2.3g/cm3, under the high temperature conditions can guarantee 10-15 days with good rheology
Property and suspension stability.
Product of the present invention is mainly used for the working solution that oil/gas well carries out oil gas after finishing drilling formation testing, is oil prospect pit
Geologic report is submitted, the means of significant data are obtained, master data is provided for oil/gas well evaluation.
For the present invention using well depth at 6000 meters -8000 meters, working solution mainly uses more formation testings with packer at high temperature under high pressure
Tubing string carries out formation testing work, ensures that working solution does not precipitate under high-temperature and high-pressure conditions, prevents packer for a long time (10-20 days)
It is not buried with tubing string, ensures being normally carried out for Oil testing.
Description of the drawings
Fig. 1 is the grain size distribution of 1 product of the embodiment of the present invention.
Specific implementation mode
Technical scheme of the present invention is illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment 1, is shown in Fig. 1：
The present invention provides a kind of high-temperature high-density high stability working solution, by 600kg tap water, 1700kg weighting materials,
100kg high temperature resistances surface modifier, 80kg stabilizers, 100kg electric double layers exciting agent, 100kg dispersants are uniform, are placed in height
In warm high density high stability working solution production equipment, it is fully ground at normal temperatures modified extremely with Malvern 2000 or similar product
Laser particle analyzer measure grain size reach：Until D50 is less than 1.5 microns, ground material is stored to get product.
Product is subjected to granularmetric analysis, the result is shown in Figure 1, D50 is less than 1.5 microns.
Embodiment 2：
The present invention provides a kind of high-temperature high-density high stability working solution, by 300kg tap water, 900kg weighting materials,
50kg high temperature resistances surface modifier, 50kg stabilizers, 80kg electric double layers exciting agent, 80kg dispersants are uniform, are placed in high temperature
In high density high stability working solution production equipment, it is fully ground at normal temperatures modified to Malvern 2000 or similar product
Laser particle analyzer measures grain size and reaches：Until D50 is less than 1.5 microns, ground material is stored to get product.
Embodiment 3：
The present invention provides a kind of high-temperature high-density high stability working solution, by 500kg tap water, 1200kg weighting materials,
80kg high temperature resistances surface modifier, 60kg stabilizers, 90kg electric double layers exciting agent, 90kg dispersants are uniform, are placed in high temperature
In high density high stability working solution production equipment, it is fully ground at normal temperatures modified to Malvern 2000 or similar product
Laser particle analyzer measures grain size and reaches：Until D50 is less than 1.5 microns, ground material is stored to get product.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although above-described embodiment to the present invention into
Detailed description is gone, the related technical personnel of this field should understand that：It can modify to the present invention or replace on an equal basis, but
Any modification and part replacement for not departing from spirit and scope of the invention should all be covered in scope of the presently claimed invention.
Claims (7)
1. a kind of high-temperature high-density high stability working solution and preparation method thereof, which is characterized in that including following component and its matter
Measure number：Water：30~60 parts, weighting material：90~180 parts, high temperature resistance surface modifier：5~10 parts, stabilizer：5~8 parts,
Electric double layer exciting agent：8~10 parts, dispersant：8~10 parts.
2. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the water is commonly oneself
Water.
3. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the weighting material is iron
Any one in miberal powder, barite, calcium carbonate or more than one mixture.
4. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the high temperature resistance surface changes
Property agent be water soluble polymer surface modifier.
5. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the stabilizer is season penta
Two or three of mixture in tetrol, xylitol, mannitol.
6. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the electric double layer exciting agent
For the charge exciting agent of micro-nano granules can be excited.
7. high-temperature high-density high stability working solution according to claim 1, which is characterized in that the dispersant is poly- third
The mixture of any one of olefin(e) acid sodium, polyacrylamide or both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188438.5A CN108384523A (en) | 2018-03-07 | 2018-03-07 | A kind of high-temperature high-density high stability working solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188438.5A CN108384523A (en) | 2018-03-07 | 2018-03-07 | A kind of high-temperature high-density high stability working solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108384523A true CN108384523A (en) | 2018-08-10 |
Family
ID=63066886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188438.5A Pending CN108384523A (en) | 2018-03-07 | 2018-03-07 | A kind of high-temperature high-density high stability working solution |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194186A (en) * | 2013-04-12 | 2013-07-10 | 中国石油大学(北京) | High density ultramicro formation testing working solution and preparation method thereof |
| CN103215016A (en) * | 2013-04-19 | 2013-07-24 | 叶艳 | Production method and device of high-density ultramicro well completion drilling formation testing working solution |
| CN103305195A (en) * | 2013-06-05 | 2013-09-18 | 北京石大博诚科技有限公司 | Method and device for producing high-density ultra-micro oil testing working fluid |
| CN103788932A (en) * | 2014-02-11 | 2014-05-14 | 北京石大博诚科技有限公司 | Nano weighting agent for oil field |
| CN104194745A (en) * | 2014-08-15 | 2014-12-10 | 巴州大德石油科技有限公司 | Ultrafine high-density well-drilling/completing working fluid for protecting ultra-deep tight sandstone gas reservoirs and preparation method thereof |
| CN104449622A (en) * | 2014-12-22 | 2015-03-25 | 陈国伟 | High temperature and high pressure resistant organic compound oil layer protection solution and preparation method thereof |
| CN105038744A (en) * | 2015-06-16 | 2015-11-11 | 中国石油大学(华东) | Novel high-temperature cementing working fluid system and composition thereof |
-
2018
- 2018-03-07 CN CN201810188438.5A patent/CN108384523A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194186A (en) * | 2013-04-12 | 2013-07-10 | 中国石油大学(北京) | High density ultramicro formation testing working solution and preparation method thereof |
| CN103215016A (en) * | 2013-04-19 | 2013-07-24 | 叶艳 | Production method and device of high-density ultramicro well completion drilling formation testing working solution |
| CN103305195A (en) * | 2013-06-05 | 2013-09-18 | 北京石大博诚科技有限公司 | Method and device for producing high-density ultra-micro oil testing working fluid |
| CN103305195B (en) * | 2013-06-05 | 2016-05-25 | 北京石大博诚科技有限公司 | A kind of method and apparatus of producing high density ultra micro formation testing working solution |
| CN103788932A (en) * | 2014-02-11 | 2014-05-14 | 北京石大博诚科技有限公司 | Nano weighting agent for oil field |
| CN104194745A (en) * | 2014-08-15 | 2014-12-10 | 巴州大德石油科技有限公司 | Ultrafine high-density well-drilling/completing working fluid for protecting ultra-deep tight sandstone gas reservoirs and preparation method thereof |
| CN104449622A (en) * | 2014-12-22 | 2015-03-25 | 陈国伟 | High temperature and high pressure resistant organic compound oil layer protection solution and preparation method thereof |
| CN105038744A (en) * | 2015-06-16 | 2015-11-11 | 中国石油大学(华东) | Novel high-temperature cementing working fluid system and composition thereof |
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Application publication date: 20180810 |