CN105086960A - Highly efficient drilling fluid and preparation method therefor and application thereof - Google Patents
Highly efficient drilling fluid and preparation method therefor and application thereof Download PDFInfo
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Abstract
The invention provides a highly efficient drilling fluid, a preparation method therefor and application thereof. The drilling fluid comprises water, amphoteric ion modified starch, anhydrous calcium chloride, a soil phase and a flow pattern modifier, wherein based on the water weight,the amphoteric ionic polymer accounts for 0.5-5 wt%, the anhydrous calcium chloride accounts for 20-70 wt%, the soil phase accounts for 0-6 wt%, and the flow pattern modifier accounts for 0.1-0.4 wt%. The invention further provides the preparation method for the water-based drilling fluid and the application of the water-based drilling fluid. According to the the water-based drilling fluid provided by the invention, by virtue of a synergistic effect of the calcium chloride and the amphoteric ionic polymer, the drilling fluid has good rheological performance, filtration control performance, inhibition performance, sealing performance and lubricating performance.
Description
Technical field
The present invention relates to the drilling fluid used in Process of Oil Well Drilling, particularly relate to the drilling fluid containing amphoteric ion copolymer.
Background technology
By force, easily there is leakage for shale gas stratum cranny development, water sensitivity, collapse, the feature such as undergauge, in drilling process, solve wellbore stability, fall the problems such as resistance antifriction and just become the most important thing that drilling fluid selects.Mainly adopt oil base drilling fluid in current domestic shale gas horizontal well drilling process, but oil base drilling fluid high cost, high pollution are its natural flaws.If water-base drilling fluid can in suppression, shutoff, lubricate, take in rock sand removal etc. and have breakthrough, very huge in the application prospect of shale gas horizontal well.At present, the water-base drilling fluid with larger application potential has glucose glycoside drilling fluid, polyamine class drilling fluid, polyglycol drilling fluid, drilling workers and silicate drilling fluid etc.These drilling fluid systems also need on existing basis, continue in-depth research, develop supporting treatment agent, meet the needs of shale gas development of resources, and drilling fluid system can be made towards the future development of environmental protection.
Chinese patent CN103146364A describes a kind of high inhibition water-base drilling fluid, and it comprises water, polyamine inhibitor, suppressed dose of bag, hydrate inhibitor, tackifier, fluid loss agent and liquid lubricant.Drilling fluid effectively can suppress deep water shallow stratum borehole well instability, and its inhibition is suitable with oil base drilling fluid.The shale rolling rate of recovery is not higher than 95%.Drilling fluid can solve the Generating Problems of hydrate in deepwater drilling, is applicable in the drilling operation of the 3000m depth of water.Chinese patent CN102250595A discloses the drilling fluid for strong retraction activated clay stratum, be made up of wilkinite, partially hydrolyzed polyacrylamide, low adhesive aggregation anionic cellulose, co-polymer of sulfonate tackifier, Repone K, polymeric alcohol, amine based polymer, fatty alcohol-ether phosphoric acid ester, water, this drilling fluid rejection and lubricity are close to oil base drilling fluid.Chinese patent CN103013470A discloses a kind of for ultra-deep sidetracked hole mud stone high inhibition drilling fluid system, by bentonite slurry, alkaline conditioner, shale control agent, metal ion polymkeric substance, valchovite, sulfonated phenol formaldehyde resin, cationic emulsified bitumen, lubricant, emulsifying agent, crude oil and calcium carbonate superfine powder, described drilling fluid system is to mud shale strong inhibition capability, shale recovery ratio is up to 90.33%, and high temperature resistance reaches 150 DEG C; The aging front and back coefficient of friction resistance is less than 0.1 respectively.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of high-efficient drilling fluid and preparation method thereof and application.Drilling fluid of the present invention, by the synergy of calcium chloride and amphoteric ion polymer, makes drilling fluid have excellent rheological property, vena caval filter performance, rejection, sealing characteristics, lubricity etc.
The invention provides a kind of water-base drilling fluid, described drilling fluid comprises water, zwitter-ion treated starch, Calcium Chloride Powder Anhydrous, the soil phase, flow pattern regulator, wherein, with the weight of water for benchmark, zwitter-ion treated starch consumption is the 0.5-5wt% of water consumption, is preferably 1.5-3wt%; Calcium Chloride Powder Anhydrous consumption is the 20-70wt% of water consumption, preferred 30-60wt%; Soil phase consumption is the 0-6wt% of water consumption, be preferably 1.5-4wt%, flow pattern regulator consumption is the 0.1-0.4wt% of water consumption, preferred 0.2-0.3wt%, described zwitter-ion treated starch is N, N-dimethyl-allyl propanesulfonic acid salt/acrylamide/starch terpolymer.
In water-base drilling fluid of the present invention, the described soil phase is one or more in sodium bentonite, calcium-base bentonite, attapulgite, sepiolite.
In water-base drilling fluid of the present invention, described flow pattern regulator is one or more in xanthan gum, guar gum, welan gum.
In water-base drilling fluid of the present invention, can also comprise weighting agent, described weighting agent is barite, Wingdale, rhombohedral iron ore, wustite, ferric oxide, one or more in magnesiumcarbonate, can decide add-on according to the requirement of drilling fluid density.
In water-base drilling fluid of the present invention, can also comprise shale control agent, described shale control agent consumption is the 0.1-2wt% of water consumption, is preferably 1-2wt%.Described shale control agent can Repone K, potassium sulfate, saltpetre, ammonium chloride, ammonium sulfate, ammonium nitrate, polyoxyethylene glycol, polypropylene glycol, one or more in polyoxyethylene glycol propylene glycol block polymkeric substance.
Zwitter-ion treated starch of the present invention is N, N-dimethyl-allyl propanesulfonic acid salt/acrylamide/starch terpolymer, and it is as follows that preparation method comprises step:
(1) dimethylaminoethyl methacrylate and 1 that mass ratio is 2:1 ~ 9:1 is taken first respectively, 3-N-morpholinopropanesulfonic acid lactone, and 1 is added in dimethylaminoethyl methacrylate, 3-N-morpholinopropanesulfonic acid lactone, then at the temperature of 10 ~ 60 DEG C, 0.5 ~ 4h is reacted, finally by filtration, extracting, dry obtained methylacryoyloxyethyl-N, N-dimethyl propylene sulfonate;
(2) according to (7 ~ 2): (4 ~ 1): the mass ratio of (2 ~ 6) takes the methylacryoyloxyethyl-N obtained in step (1) respectively, N-dimethyl propylene sulfonate, acrylamide, starch;
(3) add water the starch that step (2) takes stirring 20 ~ 50min at 60 ~ 80 DEG C, obtains pasted starch, then pass into N
2initiator is added after reaction 15 ~ 60min;
(4) acrylamide step (2) taken and methylacryoyloxyethyl-N, after N-dimethyl propylene sulfonate dissolution with solvents, join in the starch after step (3) process, at 60 ~ 80 DEG C, react 4 ~ 6h, obtain colloidal solid after reaction, obtain white precipitate with acetone cleaning;
(5) white precipitate step (4) obtained is pulverized after dry 16 ~ 24h at 50 ~ 80 DEG C, obtains zwitter-ion treated starch.
In zwitter-ion treated starch preparation method of the present invention, in step (1), the mass ratio of dimethylaminoethyl methacrylate and PS is 2.5:1 ~ 8:1.
In zwitter-ion treated starch preparation method of the present invention, PS to be added drop-wise in dimethylaminoethyl methacrylate or directly disposablely to join in dimethylaminoethyl methacrylate in step (1), preferably direct feed postition.Adopt and directly disposablely add the fashionable dimethylaminoethyl methacrylate that takes and PS mass ratio is 5.2:1 ~ 7.8:1.During employing dropping mode, dimethylaminoethyl methacrylate and PS mass ratio are 2.5:1 ~ 5:1, can by PS heat fused before dropping.
In zwitter-ion treated starch preparation method of the present invention, the reaction conditions of step (1) is react 1 ~ 3h at the temperature of 20 ~ 55 DEG C.
In zwitter-ion treated starch preparation method of the present invention, in step (1), extraction solvent selects methyl alcohol or ethanol, preferred alcohol, and extraction times is 1 ~ 3h.Described drying is dry 10 ~ 20h under 30 ~ 50 DEG C of conditions.
In zwitter-ion treated starch preparation method of the present invention, starch described in step (2) is one or more in green starch, tapioca (flour), sweet potato starch, sweet potato starch, yam starch, wheat kind of starch, water caltrop starch, Rhizoma Nelumbinis starch, W-Gum, preferred W-Gum or yam starch.
In zwitter-ion treated starch preparation method of the present invention, the initiator used in step (3) is Potassium Persulphate, in Sodium Persulfate, ammonium persulphate any one; Described initiator amount accounts for 0.5 ~ 1.5% of monomer and starch total mass.
In zwitter-ion treated starch preparation method of the present invention, described in step (4), solvent is deionized water or salt solution, and after adding solvent, monomer and starch total mass concentration are 15% ~ 30%, and the NaCl concentration added in described salt solution is 0 ~ 1.0mol/L.
Water-base drilling fluid of the present invention is prepared by the following method, first water, zwitter-ion treated starch, Calcium Chloride Powder Anhydrous, the soil phase, flow pattern regulator is proportionally taken respectively, then in water, the soil phase is added, abundant aquation or dispersion after, add flow pattern regulator, high-speed stirring adds Calcium Chloride Powder Anhydrous after making it fully dissolve, after adding Calcium Chloride Powder Anhydrous, temperature rises, after being down to room temperature, adding zwitter-ion treated starch, leaving standstill maintenance 24 ~ 48h after high-speed stirring dispersion, obtain drilling fluid.
The present invention relates to the application of a kind of water-base drilling fluid in drilling process, in drilling process, can be now with the current.
Compared with prior art, drilling fluid tool of the present invention has the following advantages:
(1) CaCl in water-base drilling fluid of the present invention
2play the role of a nucleus with zwitter-ion treated starch, its synergy plays Multifunctional effect, comprises rheological property, vena caval filter, rejection, lubricity etc.Wherein the viscosity of zwitter-ion treated starch is with CaCl
2the increase of content and increasing gradually, embodies obvious thickening and carries and cut effect; Due to high-content CaCl
2existence, shield the internal salt structure in zwitter-ion treated starch structure, contained sulfonic group and ammonium fully exposed, acts on the soil phase further, enhance the filtrate reducing ability of system; High-content CaCl
2all have stronger rejection with zwitter-ion treated starch self, their the collaborative inhibition of system that makes is stronger; The lubricity of system has has met or exceeded the level of oil base drilling fluid; The excellent properties of above entirety is that current water-base drilling fluid is short of.
(2) zwitter-ion treated starch synthetic method of the present invention is by 1,3-N-morpholinopropanesulfonic acid lactone joins in excessive dimethylaminoethyl methacrylate, excessive dimethylaminoethyl methacrylate not only can participate in reaction as raw material, and the effect of solvent can be played, avoiding in ordinary method and use poisonous acetone for solvent, is a kind of synthetic method of green.
(3) zwitter-ion treated starch synthetic method of the present invention is by control 1, the quality when feeding mode of 3-N-morpholinopropanesulfonic acid lactone and dimethylaminoethyl, solve 1, (be generally equimolar ratio reaction) when 3-N-morpholinopropanesulfonic acid lactone and dimethylaminoethyl conventionally directly react, the problem of monomer DMAPS can not be obtained.
(4) the zwitter-ion treated starch that prepared by the inventive method belongs to interior salt form amphoteric ion polymer, is that it is electrostatic attraction effect between fresh water Middle molecule, shows as molecular chain and curl with traditional amphiphilic polymers difference.And in high salt high calcium solution, due to the existence of small molecule salt, shield intermolecular association, make intermolecular electrostatic attraction be converted into electrostatic repulsion, molecular chain is unfolded more.Obvious " anti-polyelectrolyte " effect that it shows makes the anti-calcium and anti-salt performance of polymkeric substance strengthen gradually with the increase of salt amount.Can anti-NaCl saturated, anti-CaCl
2reach more than 20%.This is the anti-calcium and anti-salt performance that current treated starch amphoteric ion polymer does not possess.
Embodiment
Illustrate the effect of the inventive method below in conjunction with embodiment, but following examples do not form the restriction to the present invention program.
Embodiment 1
First methylacryoyloxyethyl-N is prepared, N-dimethyl propylene sulfonate (DMAPS)
Take 630gDM and put into reactor, then put into thermostat water bath, heat and start to stir.Take 122gPS again, directly join in DM, temperature of reaction is 35 DEG C, obtains the thick product of DMAPS after stirring reaction 1.5h.Thick for DMAPS transferred product is wrapped in large stretch of filter paper, be positioned in Soxhlet extraction device, use ethanol is solvent extraction 1h, after extracting, filter paper packet is placed in loft drier, dry at 40 DEG C, finally obtain pure DMAPS monomer, productive rate is 92.8%, (productive rate is the ratio of the actual quality obtaining product and the theoretical product quality be stoichiometrically obtained by reacting).
Comparative example 1(direct reaction)
According to stoichiometric ratio DM:PS be 1:1 reaction.Taking 157gDM pours in reactor, then puts into thermostat water bath, heats and starts to stir.Take 122gPS again, directly join in DM, temperature of reaction is 20 DEG C, obtains mass polymerization product after stirring reaction 0.5h, and without DMAPS monomer, productive rate is 0.During according to stoichiometric reaction, producing a large amount of heat in reaction cannot leave in time, and temperature moment sharply rises, and causes raw material DM and product D MAPS to be all polymerized.
Comparative example 2(ordinary method take acetone as solvent reaction)
Taking 170gDM pours in reactor, then puts into thermostat water bath, heats and starts to stir.Take 122gPS again and be dissolved in 1170g acetone, directly joined in DM by mixing solutions, temperature of reaction is 60 DEG C, obtains the thick product of DMAPS after stirring reaction 4h.Thick for DMAPS transferred product wrapped in large stretch of filter paper, be positioned in Soxhlet extraction device, use ethanol is solvent extraction 2h, is placed in loft drier after extracting by filter paper packet, and dry at 35 DEG C, finally obtain pure DMAPS monomer, productive rate is 82.4%.
Embodiment 2
Take 100g starch and add deionized water in 60 DEG C of gelatinization 30min, pass into N
2add 5g Potassium Persulphate after 30min, take 100gAM respectively, 170gDMAPS is transferred to after adding deionized water dissolving in pasted starch reactor, and monomer total mass concentration is 25%, obtains colloidal solid after reaction 5h, obtains white depositions with acetone cleaning.White depositions pulverizes to obtain the finished product after dry 12h at 70 DEG C.
Embodiment 3
Take 100g starch and add deionized water in 60 DEG C of gelatinization 30min, pass into N
2add 3g Potassium Persulphate after 30min, take 80gAM respectively, 150gDMAPS is transferred to after adding deionized water dissolving in pasted starch reactor, and monomer total mass concentration is 20%, obtains colloidal solid after reaction 6h, obtains white depositions with acetone cleaning.White depositions pulverizes to obtain the finished product after dry 12h at 70 DEG C.
Embodiment 4
First take 350ml tap water, add 6g attapulgite, after high-speed stirring 10min, add 1.2g xanthan gum, continue high-speed stirring 10min, leave standstill maintenance 2h; Add the anhydrous CaCl of 140g
2, leave standstill after high-speed stirring 10min and be cooled to room temperature; Add polymkeric substance prepared by 7g embodiment 2, high-speed stirring 10min, leave standstill maintenance 24h, obtain drilling fluid system.
Embodiment 5
First take 350ml tap water, add 9.5g calcium-base bentonite, after high-speed stirring 10min, add 1.3g welan gum, continue high-speed stirring 10min, leave standstill maintenance 2h; Add the anhydrous CaCl of 210g
2, leave standstill after high-speed stirring 10min and be cooled to room temperature; Add polymkeric substance prepared by 10g embodiment 3, high-speed stirring 10min, leave standstill maintenance 36h, obtain drilling fluid system.
Embodiment 6
Identical with embodiment 4, difference is drilling fluid not chloride containing calcium.
Embodiment 7
Identical with embodiment 4, difference is that in drilling fluid, calcium chloride consumption is the 2wt% of water consumption.
Embodiment 8
Identical with embodiment 4, difference is that in drilling fluid, calcium chloride consumption is the 5wt% of water consumption.
Embodiment 9
Identical with embodiment 4, difference is that in drilling fluid, calcium chloride consumption is the 10wt% of water consumption.
Embodiment 10
Identical with embodiment 4, difference is that in drilling fluid, calcium chloride consumption is the 25wt% of water consumption.
Testing performance of drilling fluid:
Testing performance of drilling fluid comprises the test of rheological property, vena caval filter, rejection, lubricity.Test result is in table 1 ~ table 4.Wherein, rheological property uses ZNN-D6 type six fast rotational viscosimeter to measure, and calculates each rheological parameter by the φ 600, the φ 300 that obtain, φ 6, φ 3 data; Filter loss uses the multi-joint middle press filtration of SD-6A type to commit a breach of etiquette and high pressure high temperature filter tester measures, test duration 30min; Rejection is that test is reclaimed in shale rolling, and method is: add in drilling fluid by the shale of certain mass, and roll aging 16h at 120 DEG C, takes out with the recovery of 0.42mm standard sieve, calculates primary recovery.Shale after recovery is positioned in clear water the aging 2h that rolls at 120 DEG C, takes out and reclaims with 0.42mm standard sieve, calculate secondary returning yield; Lubricity uses extreme boundary lubrication instrument EP-B and sticking coefficient determinator NF-2 to measure.
Table 1 rheological property
Table 2 vena caval filter
Table 3 rejection
Table 4 lubricity
Claims (18)
1. a water-base drilling fluid, it is characterized in that described drilling fluid comprises water, zwitter-ion treated starch, Calcium Chloride Powder Anhydrous, the soil phase, flow pattern regulator, wherein, with the weight of water for benchmark, zwitter-ion treated starch consumption is the 0.5-5wt% of water consumption, is preferably 1.5-3wt%; Calcium Chloride Powder Anhydrous consumption is the 20-70wt% of water consumption, preferred 30-60wt%; Soil phase consumption is the 0-6wt% of water consumption, be preferably 1.5-4wt%, flow pattern regulator consumption is the 0.1-0.4wt% of water consumption, preferred 0.2-0.3wt%, described zwitter-ion treated starch is methylacryoyloxyethyl-N, N-dimethyl propylene sulfonate/acrylamide/starch terpolymer.
2. according to water-base drilling fluid according to claim 1, it is characterized in that: the described soil phase is one or more in sodium bentonite, calcium-base bentonite, attapulgite, sepiolite.
3. according to water-base drilling fluid according to claim 1, it is characterized in that: described flow pattern regulator is xanthan gum, one or more in guar gum, welan gum.
4. according to water-base drilling fluid according to claim 1, it is characterized in that: described zwitter-ion treated starch is prepared as follows: ((1) takes the dimethylaminoethyl methacrylate and 1 that mass ratio is 2:1 ~ 9:1 first respectively, 3-N-morpholinopropanesulfonic acid lactone, and 1 is added in dimethylaminoethyl methacrylate, 3-N-morpholinopropanesulfonic acid lactone, then at the temperature of 10 ~ 60 DEG C, 0.5 ~ 4h is reacted, finally by filtration, extracting, dry obtained methylacryoyloxyethyl-N, N-dimethyl propylene sulfonate; (2) according to (7 ~ 2): (4 ~ 1): the mass ratio of (2 ~ 6) takes the methylacryoyloxyethyl-N obtained in step (1) respectively, N-dimethyl propylene sulfonate, acrylamide, starch; (3) add water the starch that step (2) takes stirring 20 ~ 50min at 60 ~ 80 DEG C, obtains pasted starch, then pass into N
2initiator is added after reaction 15 ~ 60min; (4) acrylamide step (2) taken and methylacryoyloxyethyl-N, after N-dimethyl propylene sulfonate dissolution with solvents, join in the starch after step (3) process, at 60 ~ 80 DEG C, react 4 ~ 6h, obtain colloidal solid after reaction, obtain white precipitate with acetone cleaning; (5) white precipitate step (4) obtained is pulverized after dry 16 ~ 24h at 50 ~ 80 DEG C, obtains zwitter-ion treated starch.
5. according to water-base drilling fluid according to claim 4, it is characterized in that: in step (1), the mass ratio of dimethylaminoethyl methacrylate and PS is 2.5:1 ~ 8:1.
6. according to water-base drilling fluid according to claim 4, it is characterized in that: PS to be added drop-wise in dimethylaminoethyl methacrylate or directly disposablely to join in dimethylaminoethyl methacrylate in step (1).
7. according to water-base drilling fluid according to claim 6, it is characterized in that: adopt and directly disposablely add the fashionable dimethylaminoethyl methacrylate that takes and PS mass ratio is 5.2:1 ~ 7.8:1.
8. according to water-base drilling fluid according to claim 6, it is characterized in that: during employing dropping mode, dimethylaminoethyl methacrylate and PS mass ratio are 2.5:1 ~ 5:1.
9. according to water-base drilling fluid according to claim 4, it is characterized in that: described in step (1), extraction solvent selects methyl alcohol or ethanol, extraction times is 1 ~ 3h.
10. according to water-base drilling fluid according to claim 4, it is characterized in that: starch described in step (2) is one or more in green starch, tapioca (flour), sweet potato starch, sweet potato starch, yam starch, wheat kind of starch, water caltrop starch, Rhizoma Nelumbinis starch, W-Gum, preferred W-Gum or yam starch.
11., according to water-base drilling fluid according to claim 4, is characterized in that: the initiator described in step (3) is any one in Potassium Persulphate, Sodium Persulfate, ammonium persulphate, and described initiator amount accounts for 0.5 ~ 1.5% of monomer and starch total mass.
12., according to water-base drilling fluid according to claim 4, is characterized in that: after adding solvent in step (4), monomer and starch total concn are 15% ~ 30%.
13. press according to water-base drilling fluid according to claim 4, and it is characterized in that: described in step (4), solvent is deionized water or salt solution, the NaCl concentration added in described salt solution is 0 ~ 1.0mol/L.
14., according to water-base drilling fluid according to claim 1, is characterized in that: described drilling fluid comprises shale control agent, and described shale control agent consumption is the 0.1-2wt% of water consumption, are preferably 1-2wt%.
15., according to water-base drilling fluid according to claim 14, is characterized in that: described shale control agent is one or more in Repone K, potassium sulfate, saltpetre, ammonium chloride, ammonium sulfate, ammonium nitrate, polyoxyethylene glycol, polypropylene glycol, polyoxyethylene glycol propylene glycol block polymkeric substance.
16., according to water-base drilling fluid according to claim 1, is characterized in that: described drilling fluid comprises weighting agent, and described weighting agent is barite, Wingdale, rhombohedral iron ore, wustite, ferric oxide, one or more in magnesiumcarbonate, can decide add-on according to the requirement of drilling fluid density.
The application of water-base drilling fluid in drilling process described in arbitrary claim in 17. claims 1 to 16.
The preparation method of water-base drilling fluid described in arbitrary claim in 18. claims 1 to 16, comprise following content, first water, zwitter-ion treated starch, Calcium Chloride Powder Anhydrous, the soil phase, flow pattern regulator is proportionally taken respectively, then in water, the soil phase is added, abundant aquation or dispersion after, add flow pattern regulator, high-speed stirring adds Calcium Chloride Powder Anhydrous after making it fully dissolve, after adding Calcium Chloride Powder Anhydrous, temperature rises, zwitter-ion treated starch is added after being down to room temperature, leave standstill maintenance 24 ~ 48h after high-speed stirring dispersion, obtain drilling fluid.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088001A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN111088003A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas layer protection material and preparation method and application thereof |
| CN111087983A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN111088000A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas layer protection material and its preparation method and application |
| CN111087982A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN113073952A (en) * | 2021-03-31 | 2021-07-06 | 中国石油化工股份有限公司 | On-site treatment process of starch-based drilling fluid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788247A (en) * | 1986-09-15 | 1988-11-29 | Exxon Research And Engineering Company | Terpolymers of acrylamide, alkyl polyetheroxyacrylate and betaine monomers |
| US5026490A (en) * | 1990-08-08 | 1991-06-25 | Exxon Research & Engineering | Zwitterionic functionalized polymers as deflocculants in water based drilling fluids |
| US6667279B1 (en) * | 1996-11-13 | 2003-12-23 | Wallace, Inc. | Method and composition for forming water impermeable barrier |
| FR2863617A1 (en) * | 2003-12-15 | 2005-06-17 | Rhodia Chimie Sa | Use of polymers comprising betaine-functional units as clay swelling inhibitors and/or fluid loss additives in drilling fluids |
| US20060019834A1 (en) * | 2004-07-22 | 2006-01-26 | Mohand Melbouci | Water-based drilling fluids |
| CN1861654A (en) * | 2006-04-27 | 2006-11-15 | 西南石油学院 | Water soluble amphoteric ion copolymer and preparation process thereof |
| CN102040707A (en) * | 2009-10-23 | 2011-05-04 | 中国石油化工股份有限公司 | Zwitterionic polymer and preparation method thereof |
| CN102432747A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Amine lactone type amphoteric high polymer emulsion as well as preparation method and application thereof |
-
2014
- 2014-05-12 CN CN201410197765.9A patent/CN105086960B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788247A (en) * | 1986-09-15 | 1988-11-29 | Exxon Research And Engineering Company | Terpolymers of acrylamide, alkyl polyetheroxyacrylate and betaine monomers |
| US5026490A (en) * | 1990-08-08 | 1991-06-25 | Exxon Research & Engineering | Zwitterionic functionalized polymers as deflocculants in water based drilling fluids |
| US6667279B1 (en) * | 1996-11-13 | 2003-12-23 | Wallace, Inc. | Method and composition for forming water impermeable barrier |
| FR2863617A1 (en) * | 2003-12-15 | 2005-06-17 | Rhodia Chimie Sa | Use of polymers comprising betaine-functional units as clay swelling inhibitors and/or fluid loss additives in drilling fluids |
| US20060019834A1 (en) * | 2004-07-22 | 2006-01-26 | Mohand Melbouci | Water-based drilling fluids |
| CN1861654A (en) * | 2006-04-27 | 2006-11-15 | 西南石油学院 | Water soluble amphoteric ion copolymer and preparation process thereof |
| CN102040707A (en) * | 2009-10-23 | 2011-05-04 | 中国石油化工股份有限公司 | Zwitterionic polymer and preparation method thereof |
| CN102432747A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Amine lactone type amphoteric high polymer emulsion as well as preparation method and application thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088001A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN111088003A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas layer protection material and preparation method and application thereof |
| CN111087983A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN111088000A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas layer protection material and its preparation method and application |
| CN111087982A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Oil-gas reservoir protection material and preparation method and application thereof |
| CN113073952A (en) * | 2021-03-31 | 2021-07-06 | 中国石油化工股份有限公司 | On-site treatment process of starch-based drilling fluid |
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