CN1621656A - Method for configuring and maintaining long section barefoot drilling fluid - Google Patents
Method for configuring and maintaining long section barefoot drilling fluid Download PDFInfo
- Publication number
- CN1621656A CN1621656A CNA2003101110176A CN200310111017A CN1621656A CN 1621656 A CN1621656 A CN 1621656A CN A2003101110176 A CNA2003101110176 A CN A2003101110176A CN 200310111017 A CN200310111017 A CN 200310111017A CN 1621656 A CN1621656 A CN 1621656A
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- China
- Prior art keywords
- drilling fluid
- well
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- section
- dosage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005553 drilling Methods 0.000 title claims abstract description 55
- 239000012530 fluid Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012459 cleaning agent Substances 0.000 claims description 6
- 229920002521 macromolecule Polymers 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 4
- 229920001983 poloxamer Polymers 0.000 claims description 4
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 claims description 2
- 230000036571 hydration Effects 0.000 claims description 2
- 238000006703 hydration reaction Methods 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 238000006277 sulfonation reaction Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 229920006158 high molecular weight polymer Polymers 0.000 abstract description 2
- 239000003209 petroleum derivative Substances 0.000 abstract description 2
- 238000004537 pulping Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920000344 molecularly imprinted polymer Polymers 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The present invention is the compounding and maintaining method of well drilling fluid for long open hole drilling in exploiting petroleum and natural gas. The present invention provides long open hole drilling fluid including mud inhibiting polynary polymer system for upper open hole, polynary sulfonate polymer system for lower open hole and oil mixture-sulfonate polymer system for horizontal section, and the long open hole drilling fluid may be used in open hole drilling up to 5000 m. The drilling fluid for the upper section use has proper higher soil content and two kinds of polymer and is favorable to carrying sand, suspending, preventing leakage and preventing collapse; and that for the lower section use has sufficient high molecular weight polymer as coating agent and detergent and no dispersant for fast drilling, dispersing, pulping, preventing jamming, preventing balling and utilizing hydraulic horsepower.
Description
Technical field: a kind of configuration and maintaining method of the section of length bore hole drilling fluid, the long section bore hole that is used for petroleum gas is crept into, and belongs to the formula technique field of drilling fluid system.
Background technology: in the prior art, the oil or the natural gas well that the dark 5000m that bung down are above, for the borehole wall is collapsed, generally all in drilling process, be lowered to three layers of casing cementing, in order to save drilling cost, the research work of carrying out long bore hole section is also arranged, but present bore hole section is between 4000～4500 meters, have only 500 meters bore hole section, can reach the above bore hole drilling well of 5000m does not have precedent as yet, does not see the research of this respect according to data abroad yet, utilize sleeve pipe fixedly the technology of the borehole wall used for many years, it has the advantage that the borehole wall is collapsed, and its shortcoming is: be not suitable for the oil drilling low cost development strategy of current enforcement, simultaneously, because intermediate demand setting of casing, need stop to bore, the speed that this creeps into influence has bigger influence to the competitiveness in market.
Summary of the invention: the present invention will design a kind of top well to adopt multipolymer inhibition system, bottom to adopt polynary poly-sulphur system, adopt poly-sulphur oil emulsion drilling fluid at directed net horizontal section, can be used for reaching the configuration and the maintaining method of the long section bore hole drilling fluid that the 5000m bore hole creeps into.
The present invention is achieved in that in top layer well section and bores being mainly drifting sand layer and becoming the relatively poor argillic horizon of lithology of meeting, the main problem of considering anti-collapse, antiseep, taking sand and suspension, therefore to guarantee the strong wave making machine and the suitable high shearing force of drilling fluid, in this well section, suitably height is a bit for native content in the mud, two kinds of polymer composite uses simultaneously, configuration base slurry and aquation+other polymer are made into glue, adjust processing, carry out performance maintenance with large and small Molecularly Imprinted Polymer composite glue and base slurry in the drilling process; Open and three spud sections two, this well Duan Weichang barefoot interval, main contradiction is to suppress and rheological characteristic, adopt low solid phase to wrap by force by the polynary sulphonated polymer mud system of dispersed polymeres not, on drilling fluid is safeguarded, at first fill up the heavy polymer coating agent and be used in combination cleaning agent, do not use dispersing agent, run into exceptional well Duan Shike and use polymeric alcohol.
Advantage of the present invention is: the native content that top layer well section is suitably high and two kinds of polymer composite uses simultaneously help taking sand, suspension, antiseep and anti-collapse, open to use when opening two and fill up the high molecular weight polymers coating agent and be used in combination cleaning agent with three, can play fast creep into, the effect of dispersion, pulping, anti-blocked portion, anti-mud drum and performance water horse power, do not use dispersing agent can solve the problem of blocked portion, anti-mud drum and reaming.
The specific embodiment: following is that example provides most preferred embodiment of the present invention with the HD1-22H well: 5600 meters of this well finishing drilling well depths, bore hole segment length reaches 5080 meters, 661.59 meters of horizontal movements, well section 0～500 meter well depth in top layer, top adopts multipolymer to suppress mud system, and drilling fluid The field prescription is as follows: the first step is configuration swell soil magma 120～150m earlier
3, prescription is: fresh water+0.2～0.3%NaOH+0.3～0.6%Na
2CO
3+ 5～8% swell soil carries out in proper order by prescription during dosing, after fully stirring, and hydration time 〉=16 hour; Second step was disposed glue again, prescription is: the well site water+little molecule 0.5～0.8% of caustic soda 0.1%+ polymer macromolecule 0.5～0.8%+ polymer, then the swell soil magma for preparing is mixed with glue and be made into top layer, top drilling fluid, the maintenance program of top layer, top drilling fluid is: check the salinity of measuring well site water earlier, when salinity is high, improve the dosage of soda ash and caustic soda, in drilling process, add a spot of glue and additional prehydration swell soil magma slowly, adopt the level Four well control, be lowered to the preceding well of thoroughly cleaning of surface pipe; The lower well section adopts polynary poly-sulphur system formulation from 500～5100 meters well sections, and filling a prescription is: base slurry+KPAM0.1～0.2%+SMP
-12～3%+SPNH (PSC
-1) 2～3%+ sulfonated gilsonite or mulseal 2～5%+ sliding agent 0.5～2%+ agstone or blanc fixe be made into the drilling fluid of lower well section; The maintaining method of lower well section drilling fluid is: clean earlier thoroughly mud settling tank before spudding in, before boring the boiling water bod, prevent that with soda ash preliminary treatment drilling fluid cement from invading, have stronger encapsulating ability for making drilling fluid, alleviate blocked portion, macromolecule polyalcohol is pressed 2～3kg/m
3Sized molecules dosage ratio is (2～3): 1, for guaranteeing the lubricity of drilling fluid, the sliding agent dosage is 1.0～1.5%, add 0.5～1% Pluronic polyols SYP-1 and an amount of cleaning agent RH-4 simultaneously, for preventing seepage, in drilling fluid, add 1～3% YL-80 and drill-feeding plugging agent, the each addition of drill-feeding plugging agent is controlled at 0.5%; Net horizontal section is from 4815.79～5128.27 meters, the drilling fluid mud maintaining method of this well section is: thoroughly clean mud settling tank at horizontal well drilling Duan Qianxian, use soda ash preliminary treatment drilling fluid before the drilling out, invade to prevent water mud, the drilling fluid of this well section is based on the polynary poly-sulphur system of top well section, the dosage of CMP-3 is controlled at 0.1～0.2%, and the polymer macromolecule dosage is 2～3kg/m
3Sized molecules dosage ratio is (2～3): 1, to guarantee that drilling fluid has stronger encapsulating ability, prevent blocked portion, sliding agent dosage 0.5～1%, crude oil dosage are 3～5%, and the SP-80 dosage is 0.5～1.5%, and an amount of RH-4 cleaning agent and Pluronic polyols SYP-1, for preventing seepage, in drilling fluid, add an amount of YL-80 and 1～3% drill-feeding plugging agent, the each addition of drill-feeding plugging agent is controlled at 0.5%, adopt CMP-3, KPAM, sulfonation inorganic agent etc. is made into glue, so that safeguard and the adjustment mud property, adjusts flow pattern with PSC, but, can not use strong dispersing agent; During 100m, drilling fluid adds 2～3% TYZ-8 in well before entering oil-gas Layer, 2～3% thick TQS-3 and thin TQS-3; Before electrical measurement, thoroughly clean well, adjust rheological characteristic, smooth to guarantee electrical measurement, setting of casing.
Claims (2)
1. the configuration of a long section bore hole drilling fluid and maintaining method, it is characterized in that: top layer, top well section adopts multipolymer to suppress mud system, the bottom adopts polynary poly-sulphur system, directed net horizontal section to adopt poly-sulphur oil emulsion drilling fluid, and the collocation method of this drilling fluid is:
A. the multipolymer of stating the well section employing of top layer, top suppresses mud system and is: dispose swell soil magma 120～150m earlier
3, prescription is: talk water+0.2～0.3%NaOH+0.3～0.6%Na
2CO
3+ 5～8% swell soil, carry out in proper order by prescription during dosing, fully stir, hydration time 〉=16 hour, dispose glue again, prescription is: the well site water+little molecule 0.5～0.8% of caustic soda 0.1%+ polymer macromolecule 0.5～0.8%+ polymer, mix the drilling fluid that is made into top layer, top well section with swell soil magma then with glue;
B. the polynary poly-sulphur system that described lower well section adopts is: base slurry+KPAM0.1～0.2%+SMP
-12～3%+SPNH (PSC
-1) 2～3%+ sulfonated gilsonite or mulseal 2～5%+ sliding agent 0.5～2%+ agstone or blanc fixe;
C. the poly-sulphur oil emulsion drilling fluid that described directed net horizontal section adopts is the polynary poly-sulphur system based on top well section, and the dosage of CMP-3 is controlled at 0.1～0.2%, and the polymer macromolecule dosage is 2～3kg/m
3, sized molecules dosage ratio is (2～3): 1, and sliding agent dosage 0.5～1%, crude oil dosage are 3～5%, the SP-80 dosage is 0.5～1.5%, and adds RH-4 cleaning agent and Pluronic polyols SYP-1.
2. according to the configuration and the maintaining method of the described a kind of section of length bore hole drilling fluid of claim 1, it is characterized in that: the maintaining method of described drilling fluid is:
A. the maintaining method of the multipolymer inhibition mud system of top layer, top well section employing is: check the salinity of measuring well site water earlier, in drilling process, add glue, replenish prehydration swell soil magma, adopt the level Four well control, be lowered to the preceding well of cleaning of surface pipe;
B. the maintaining method of the polynary poly-sulphur system of lower well section employing is: clean mud settling tank before spudding in earlier, before boring the boiling water bod, use soda ash preliminary treatment drilling fluid, by 2～3kg/m
3Amount add macromolecule polyalcohol, add 1.0～1.5% sliding agents again, add 0.5～1% Pluronic polyols SYP-1 and cleaning agent RH-4 simultaneously, in drilling fluid, add 1～3% YL-80 and drill-feeding plugging agent, the each addition of drill-feeding plugging agent is 0.5%;
The maintaining method of the poly-sulphur oil emulsion drilling fluid that c. directed net horizontal section adopts is: clean mud settling tank at horizontal well drilling Duan Qianxian, use soda ash preliminary treatment drilling fluid before the drilling out, the drill-feeding plugging agent that in drilling fluid, adds YL-80 and 1～3%, the each addition of drill-feeding plugging agent is 0.5%, adopt CMP-3, KPAM, the sulfonation inorganic agent is made into glue, adjust rheological characteristic with PSC, ban use of strong dispersing agent, before entering oil-gas Layer during 100m, drilling fluid adds 2～3% TYZ-8 in well again, 2～3% thick TQS-3 and thin TQS-3 clean well and adjust rheological characteristic before electrical measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101110176A CN1621656A (en) | 2003-11-26 | 2003-11-26 | Method for configuring and maintaining long section barefoot drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101110176A CN1621656A (en) | 2003-11-26 | 2003-11-26 | Method for configuring and maintaining long section barefoot drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1621656A true CN1621656A (en) | 2005-06-01 |
Family
ID=34759302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101110176A Pending CN1621656A (en) | 2003-11-26 | 2003-11-26 | Method for configuring and maintaining long section barefoot drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1621656A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868513A (en) * | 2007-09-25 | 2010-10-20 | 哈利伯顿能源服务公司 | Methods and compositions relating to minimizing particulate migration over long intervals |
| CN101531889B (en) * | 2009-04-13 | 2010-12-29 | 中国石油集团川庆钻探工程有限公司 | Oil-based stuck freeing fluid for well drilling |
| CN104762070A (en) * | 2015-03-31 | 2015-07-08 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling liquid capable of passing through coal bed or carbonaceous mudstone for slant interval of horizontal well |
| CN105219363A (en) * | 2014-06-20 | 2016-01-06 | 成都棕通石油配件有限公司 | Fast drilling mud |
| CN114605971A (en) * | 2020-12-08 | 2022-06-10 | 中石化石油工程技术服务有限公司 | Drilling fluid and drilling fluid performance maintenance method based on wellbore temperature |
-
2003
- 2003-11-26 CN CNA2003101110176A patent/CN1621656A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868513A (en) * | 2007-09-25 | 2010-10-20 | 哈利伯顿能源服务公司 | Methods and compositions relating to minimizing particulate migration over long intervals |
| CN101868513B (en) * | 2007-09-25 | 2015-05-06 | 哈利伯顿能源服务公司 | Methods and compositions relating to minimizing particulate migration over long intervals |
| CN101531889B (en) * | 2009-04-13 | 2010-12-29 | 中国石油集团川庆钻探工程有限公司 | Oil-based stuck freeing fluid for well drilling |
| CN105219363A (en) * | 2014-06-20 | 2016-01-06 | 成都棕通石油配件有限公司 | Fast drilling mud |
| CN104762070A (en) * | 2015-03-31 | 2015-07-08 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling liquid capable of passing through coal bed or carbonaceous mudstone for slant interval of horizontal well |
| CN114605971A (en) * | 2020-12-08 | 2022-06-10 | 中石化石油工程技术服务有限公司 | Drilling fluid and drilling fluid performance maintenance method based on wellbore temperature |
| CN114605971B (en) * | 2020-12-08 | 2023-07-21 | 中石化石油工程技术服务有限公司 | A drilling fluid and a drilling fluid performance maintenance method based on wellbore temperature |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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