CN101935519A - Drilling fluid and preparation method thereof - Google Patents
Drilling fluid and preparation method thereof Download PDFInfo
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- CN101935519A CN101935519A CN2010102481614A CN201010248161A CN101935519A CN 101935519 A CN101935519 A CN 101935519A CN 2010102481614 A CN2010102481614 A CN 2010102481614A CN 201010248161 A CN201010248161 A CN 201010248161A CN 101935519 A CN101935519 A CN 101935519A
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Abstract
The invention discloses a drilling fluid and a preparation method thereof. The drilling fluid comprises Nml of water, wherein N is a positive number, 0.002N-0.005N gram of anhydrous sodium carbonate Na2CO3, 0.04N gram of bentonite for the drilling fluid, 0.003N-0.006N gram of coating agent, 0.015N-0.02N gram of tackifier, 0.01N-0.02N gram of filtrate reducer, 0.015N-0.03N gram of anti-collapse agent, 0.02N-0.03N gram of lubricant, 0.01N-0.015N gram of dispersing agent, 0.05N-0.08N gram of rigid bridging agent and 0.08N-0.15N gram of rigid filler. The drilling fluid of the invention is applicable to a loss formation and has obvious leakage stoppage effect, a leak-proof function at the same time and obvious inhibiting effect on a formation which is easy to disperse and collapse.
Description
Technical field
The present invention relates to the oilfield drilling technical field of petroleum industry, particularly relate to a kind of drilling fluid and preparation method thereof.
Background technology
Borehole well instability is the big problem that ubiquity also perplexs petroleum industrial circle always in the Process of Oil Well Drilling.Borehole well instability comprises: the borehole wall collapses, leakage etc.According to conservative estimation, the annual loss that can cause hundred million dollars of 5-6 of borehole well instability to World Oil Industry.
Because drilling engineering relates to underground works complexity, Protean geologic framework, the borehole well instability that causes in the construction also can be brought out other down-hole accident, therefore borehole well instability receives the concern of domestic and international petroleum drilling, also is that the important content of tackling key problems is unremittingly made great efforts in domestic and international drilling well always.
For a long time, the China's oil worker often runs into the borehole well instability problem in drilling process.Particularly from twentieth century since the eighties, along with Exploration Domain is expanded to the newly developed area, drilling well is carried out in more complicated stratum, and borehole well instability is also serious day by day.For example, in drilling process, the saline bed borehole wall piece that collapses is the down hole problem that often runs into, and has a strong impact on speed, wellbore quality and the operating cost of drilling well.The new exploratory area of part also can can't be bored because of borehole well instability and be reached zone of interest, incurs loss through delay exploratory development speed, influence exploration overall economic efficiency, so wellbore stability research is the emphasis of oil worker research always.
At present, successively developed some caving-preventing drilling fluids both at home and abroad, having comprised: polymeric alcohol caving-preventing drilling fluid, silicate drilling fluid, organosilicon drilling fluid etc.But these drilling fluids have the following disadvantages:
(1) suitable stratum is single.A kind of drilling fluid only is applicable to a kind of stratum, as sandstone formation, mud shale stratum or salt cream rock stratum etc., does not have broad spectrum type, promptly is not suitable for the different kinds of rocks stratum;
(2) caving-preventing characteristic is single.Commute disperse or only the commute stratum of collapsing anti sloughing effectiveness is arranged, do not have that commute disperses and the stratum anti sloughing effectiveness simultaneously that easily collapses;
(3) effect is single.Have only anti-collapse effect and do not have the leakproof effect, or have only the leakproof effect and do not have anti-collapse effect.
In sum, the performance of existing drilling fluid is single, can not effectively prevent the situation of borehole well instability.
Summary of the invention
The invention provides a kind of drilling fluid.This drilling fluid is applicable to bad ground, has the function of anti-collapse leakproof simultaneously concurrently, and commute disperses and all there is anti sloughing effectiveness on the stratum of easily collapsing.
The present invention also provides a kind of method for preparing drilling fluid.The drilling fluid that this method is prepared is applicable to bad ground, has the function of anti-collapse leakproof simultaneously concurrently, and commute disperses and all there is anti sloughing effectiveness on the stratum of easily collapsing.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of drilling fluid, the consisting of of this drilling fluid:
The water of N milliliter, N are positive number;
0.002N-0.005N the anhydrous sodium carbonate Na of gram
2CO
3
0.04N the drilling fluid wilkinite of gram;
0.003N-0.006N the coating agent of gram;
0.015N-0.02N the tackifier of gram;
0.01N-0.02N the fluid loss agent of gram;
0.015N-0.03N the gram anti-collapse dose;
0.02N-0.03N the lubricant of gram;
0.01N-0.015N the dispersion agent of gram;
0.05N-0.08N the rigidity bridging agent of gram;
And the rigidity weighting agent of 0.08N-0.15N gram.
The invention also discloses a kind of method for preparing drilling fluid, this method comprises:
The anhydrous sodium carbonate Na that in the N ml water, adds the 0.002N-0.005N gram while stirring
2CO
3With the drilling fluid wilkinite of 0.04N gram, after continuing to stir first Preset Time, leave standstill second Preset Time, obtain the base slurry;
In base slurry, add tackifier, the 0.01N-0.02N gram of coating agent, the 0.015N-0.02N gram of 0.003N-0.006N gram fluid loss agent, 0.015N-0.03N gram anti-collapse dose, the lubricant of 0.02N-0.03N gram, the dispersion agent of 0.01N-0.015N gram, the rigidity bridging agent of 0.05N-0.08N gram and the rigidity weighting agent of 0.08N-0.15N gram while stirring, obtain drilling fluid.
Be applicable to complicated stratum according to the resulting drilling fluid of the solution of the present invention, have the function of anti-collapse leakproof simultaneously concurrently, and commute disperses and all there is anti sloughing effectiveness on the stratum of easily collapsing.
Description of drawings
Fig. 1 is a kind of schema for preparing the method for drilling fluid of the embodiment of the invention.
Embodiment
Consisting of of the drilling fluid that provides among the present invention: the water of N milliliter, N are positive number; 0.002N-0.005N the anhydrous sodium carbonate Na of gram
2CO
30.04N the drilling fluid wilkinite of gram; 0.003N-0.006N the coating agent of gram; 0.015N-0.02N the tackifier of gram; 0.01N-0.02N the fluid loss agent of gram; 0.015N-0.03N the gram anti-collapse dose; 0.02N-0.03N the lubricant of gram; 0.01N-0.015N the dispersion agent of gram; 0.05N-0.08N the rigidity bridging agent of gram; And the rigidity weighting agent of 0.08N-0.15N gram.The preparation method of this drilling fluid as shown in Figure 1.
Fig. 1 is a kind of schema for preparing the method for drilling fluid of the embodiment of the invention.As shown in Figure 1, this method comprises:
In one embodiment of the invention, first Preset Time was got more than 16 hours, and second Preset Time was got 24 hours.
In the present invention, coating agent can be selected one or both in the following treatment agent: natural polymer coating agent IND30, high adhesive aggregation anionic cellulose PAC-HV, acrylic acid or the like multiple copolymer HXB, polyacrylic acid potassium K-PAM, acrylamide multipolymer Coater-10;
Tackifier can be selected one or both in the following treatment agent: high sticking carboxyl methyl cellulose-HV, biological polymer XC, biological polymer graft modification thing GEL30, Natvosol HEC, biopolymerization composition copolymer HF-1;
Fluid loss agent can be selected one or both in the following treatment agent: in sticking carboxyl methyl cellulose-MV, low sticking carboxyl methyl cellulose-LV, carboxymethyl starch CMS, sulfonated-pheno-formoldehyde resin SMP, potassium humate OSAM-K, acrylonitrile copolymer JHG-1;
Can select one or both in the following treatment agent for anti-collapse dose: polymeric alcohol JLX, polymeric alcohol PE-1, solid polymerization alcohol PGCS-1, sulfonated gilsonite FT-1, cationic emulsified bitumen PC-1, oxidized bitumen GL-1, no fluorescence albino bitumen NFA-25;
Lubricant can be selected one or both in the following treatment agent: nontoxic lubricant FXRH, printing ink RH-3, omnipotent rust-inhibiting lubricant HXR, plant oil modified lubricant CX-3;
Dispersion agent can be selected one or both in the following treatment agent: Sodium dodecylbenzene sulfonate ABS, polyoxyethylene octylphenol ether OP-10, alkylphenol polyoxyethylene OP-15, sorbitan ester SP80;
The rigidity bridging agent can be selected one or both in the following treatment agent: rice bran, sawdust, corn cob, cotton seed hulls;
The rigidity weighting agent can be selected one or both in the following treatment agent: oil-soluble resin, nut-shell, vegetable fibre.
In order to make technical scheme of the present invention clearer, clear, below enumerate specific embodiment technical scheme of the present invention is further specified book.
Embodiment one
(1.1) preparation base slurry: in the N ml water, add the anhydrous sodium carbonate Na of 0.003N gram while stirring
2CO
3With the drilling fluid wilkinite of 0.04N gram, continuation was left standstill 24 hours after stirring more than 16 hours again;
(1.2) in the base slurry, add all kinds of treatment agents by following dosage while stirring:
The natural polymer coating agent IND30 of coating agent: 0.003N gram;
The biological polymer graft modification thing GEL30 of tackifier: 0.015N gram;
Sticking carboxyl methyl cellulose-MV in fluid loss agent: the 0.01N gram;
Anti-collapse dose: the polymeric alcohol PE-1 of 0.015N gram:
The nontoxic lubricant FXRH of lubricant: 0.02N gram;
The Sodium dodecylbenzene sulfonate ABS of dispersion agent: 0.01N gram:
The rigidity bridging agent is the rice bran of 0.05N gram:
The rigidity weighting agent is the oil-soluble resin of 0.08N gram.
In the present embodiment one,, then be specially: in step (1.1), in the water of 100ml, added the anhydrous sodium carbonate Na of 0.3 gram if N gets 100
2CO
3Drilling fluid wilkinite with 4 grams; In step (1.2), the IND30 of 0.3 gram, the GEL30 of 1.5 grams, CMC-MV, 1.5 PE-1 that restrain, the FXRH of 2 grams, the ABS of 1 gram, the rice bran of 5 grams and the oil-soluble resin of 8 grams of 1 gram in the base slurry, have been added.
Embodiment two
(2.1) prepare the base slurry: in the N ml water, add the anhydrous sodium carbonate Na2CO3 of 0.003N gram and the drilling fluid wilkinite of 0.04 gram while stirring, continuation was left standstill 24 hours after stirring more than 16 hours again;
(2.2) in the base slurry, add all kinds of treatment agents by following dosage while stirring:
The high adhesive aggregation anionic cellulose PAC-HV of coating agent: 0.0045N gram;
Sticking carboxyl methyl cellulose-the HV of the height of tackifier: 0.018N gram:
The carboxymethyl starch CMS of fluid loss agent: 0.015N gram;
Anti-collapse dose: the cationic emulsified bitumen PC-1 of the polymeric alcohol JLX of 0.015N gram and 0.008N gram:
The printing ink RH-3 of lubricant: 0.025N gram:
The polyoxyethylene octylphenol ether OP-10 of dispersion agent: 0.013N gram;
The cotton seed hulls of rigidity bridging agent: 0.065N gram;
The nut-shell of rigidity weighting agent: 0.115N gram.
In the present embodiment two,, then be specially: in step (2.1), in the water of 100mL, added the anhydrous sodium carbonate Na2CO3 of 0.3 gram and the drilling fluid wilkinite of 4 grams if N gets 100; In step (2.2), in the base slurry, added the cationic emulsified bitumen PC-1 of PAC-HV, 1.8 CMC-HV that restrain, the 1.5 carboxymethyl starch CMS that restrain, 1.5 JLX that restrain and 0.8 gram of 0.45 gram, the printing ink RH-3 of 2.5 grams, the cotton seed hulls that 1.3 OP-10, the 6.5N that restrain restrain, and 11.5 nut-shells that restrain.
Embodiment three
(3.1) prepare the base slurry: in the N ml water, add the anhydrous sodium carbonate Na2CO3 of 0.002N-0.005N gram and the drilling fluid wilkinite of 0.04 gram while stirring, continuation was left standstill 24 hours after stirring more than 16 hours again;
(3.2) in the base slurry, add all kinds of treatment agents by following dosage while stirring:
The acrylamide multipolymer Coater-10 of coating agent: 0.006N gram;
Sticking carboxyl methyl cellulose-the HV of the height of tackifier: 0.02N gram;
Fluid loss agent: with the sulfonated-pheno-formoldehyde resin SMP of 0.02N gram;
Anti-collapse dose: the no fluorescence albino bitumen NFA-25 of the sulfonated gilsonite FT-1 of 0.01N gram and 0.02N gram;
The plant oil modified lubricant CX-3 of lubricant: 0.03N gram;
The sorbitan ester SP80 of dispersion agent: 0.015N gram;
The corn cob of the sawdust of rigidity bridging agent: 0.04N gram and 0.04N gram;
The nut-shell of rigidity weighting agent: 0.1N gram and 0.05N gram vegetable fibre.
In the present embodiment three,, then be specially: in step (3.1), in the water of 100ml, added the anhydrous sodium carbonate Na of 0.2-0.5 gram if N gets 100
2CO
3Drilling fluid wilkinite with 4 grams; In step (3.2), the Coater-10 of 0.6 gram, CMS, the SMP of 2 grams, the FT-1 of 1 gram and no fluorescence albino bitumen NFA-25, the CX-3 of 3 grams, the SP80 of 1.5 grams, the sawdust of 4 grams and the corn cob of 4 grams of 2 grams of 2 grams, the nut-shell and the 5 gram vegetable fibres of 10 grams in the base slurry, have been added.
Performance evaluation
Resulting drilling fluid among above-mentioned three embodiment is carried out performance evaluation.
1, the drilling fluid rheology performance is estimated
Under the room temperature, measure drilling fluid that the 400ml embodiment of the invention provided as sample, press the regulation of BG/T16783.1-2006, at the stable reading of working sample solution on the six fast rotational viscosimeters under 600 commentaries on classics/per minutes and 300 commentaries on classics/per minute rotating speeds, and 3 rev/mins full-scale reading when leaving standstill 10 seconds and 10 minutes, calculate according to following formula (1)-(3):
PV＝φ
600-φ
300 (1)
YP＝0.511×(φ
300-PV) (2)
G
10S＝φ
3max10s/2，G
10min＝φ
3max10min/2 (3)
Wherein, PV is a plastic viscosity, and unit is mPas;
φ
600, φ
300It is respectively the stable reading under 600 commentaries on classics/per minutes and the 300 commentaries on classics/per minute rotating speeds;
YP is a yield value, and unit is Pa;
φ
3max10sAnd φ
3max10minBe respectively after leaving standstill 10 seconds and 10 minutes, the maximum value of the reading during 3 commentaries on classics/per minutes;
G
10SAnd G
10minBe respectively the gel strength of 10 seconds and 10 minutes, unit is Pa.
It is as shown in table 1 to obtain the drilling fluid rheology performance according to above-mentioned experiment condition:
Table 1
As can be seen from Table 1, the drilling fluid that three examples are prepared all has good restraining, has solved dispersion, the expansion issues of bad ground.
2, drilling fluid anti-sloughing performance evaluation
Appraisal drilling liquid caving-preventing characteristic adopts rolling rate of recovery method and mud shale linear expansion method.
(1) the rolling rate of recovery is estimated.Get the drilling cuttings of a certain amount of mud shale stratum, the order number is between the 6-10 order, and 105 ℃ dry down; In digestion tank, add and estimate solution and dried drilling cuttings, aging 120 ℃ * 16 hours; Solution after aging is crossed 40 mesh sieves, and uses the tap water natural flushing; Drilling cuttings after the flushing is dry under 105 ℃, weighs, and calculates the mud shale rate of recovery.
(2) the mud shale linear expansion is estimated.Get the landwaste of dried mud shale stratum, obtain the landwaste powder after the pulverizing, under 4MPa pressure, press preparation in 5 minutes to estimate core block; Open instrument, install the evaluation core block, pour evaluation solution after the zeroing into; Begin test, write down the polar expansion amount after per 0.5 hour; With the blank solution contrast, calculate linear expansion amount reduced rate.
According to above-mentioned experiment condition, the rolling rate of recovery of the drilling fluid among three embodiment of available the present invention and mud shale linear expansion reduced rate, and with the contrast of existing three kinds of drilling fluids, as shown in table 2:
Table 2
As can be seen from Table 2, therefore the rolling rate of recovery of the drilling fluid in the embodiment of the invention and mud shale linear expansion reduced rate have caving-preventing characteristic preferably than the rolling rate of recovery and the mud shale linear expansion reduced rate height of existing drilling fluid (polyglycol drilling fluid, silicate drilling fluid and organosilicon drilling fluid).
3, the drilling fluid leak resistance is estimated
On the core flooding test device, carry out, in steel pipe, pack into synthetic core or on-the-spot rock core, use water saturation, survey its initial condition phase permeability, clamp-on the sample drilling fluid of certain volume then, take out core and measure water phase permeability after its shutoff, 100% deducts that water phase permeability and initial condition phase permeability ratio are sealing ratiod after the shutoff.Adopt the novel static state of JHB, dynamic plugging test instrument, measure the shutoff consequence and be stressed.
According to above-mentioned experiment condition, the sealing ratiod and the bearing capacity of the drilling fluid among three embodiment of available the present invention, and with the contrast of existing three kinds of drilling fluids, as shown in table 3:
Table 3
As can be seen from Table 3, therefore the sealing ratiod of the drilling fluid in the embodiment of the invention and bearing capacity have leak resistance preferably than the sealing ratiod and the bearing capacity height of existing drilling fluid (polyglycol drilling fluid, silicate drilling fluid and organosilicon drilling fluid).
In sum, there be following having a few in drilling fluid provided by the present invention:
1: have broad spectrum type, it is single to be suitable for the different kinds of rocks stratum, as anti-collapse leakproof requirements in lithology stratum such as sandstone formation, mud shale stratum, salt cream rock stratum;
2: commute disperses and the stratum of easily collapsing has anti sloughing effectiveness simultaneously, and it is all stronger to suppress rock dispersion and water-swelling ability, has satisfied bad ground drilling fluid anti-sloughing performance requriements;
3: function is many, when having anti-collapse effect, also has the leakproof effect, can realize the anti-collapse and lost circulation additive of drilling well;
4: bore when meeting the oil and gas reservoir leakage alternative shutoff drop ply, protection oil reservoir;
5: owing to have concurrently anti-collapse and the leakproof dual function, solved and bored the technical barrier of meeting the leakiness stratum of easily collapsing, simplified the drilling program on the leakage stratum of seriously collapsing.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a drilling fluid is characterized in that, the consisting of of this drilling fluid:
The water of N milliliter, N are positive number;
0.002N-0.005N the anhydrous sodium carbonate Na of gram
2CO
3
0.04N the drilling fluid wilkinite of gram;
0.003N-0.006N the coating agent of gram;
0.015N-0.02N the tackifier of gram;
0.01N-0.02N the fluid loss agent of gram;
0.015N-0.03N the gram anti-collapse dose;
0.02N-0.03N the lubricant of gram;
0.01N-0.015N the dispersion agent of gram;
0.05N-0.08N the rigidity bridging agent of gram;
And the rigidity weighting agent of 0.08N-0.15N gram.
2. drilling fluid according to claim 1 is characterized in that,
Described coating agent is one or both in the following treatment agent: natural polymer coating agent IND30, high adhesive aggregation anionic cellulose PAC-HV, acrylic acid or the like multiple copolymer HXB, polyacrylic acid potassium K-PAM, acrylamide multipolymer Coater-10;
And/or,
Described tackifier are one or both in the following treatment agent: high sticking carboxyl methyl cellulose-HV, biological polymer XC, biological polymer graft modification thing GEL30, Natvosol HEC, biopolymerization composition copolymer HF-1;
And/or,
Described fluid loss agent is one or both in the following treatment agent: in sticking carboxyl methyl cellulose-MV, low sticking carboxyl methyl cellulose-LV, carboxymethyl starch CMS, sulfonated-pheno-formoldehyde resin SMP, potassium humate OSAM-K, acrylonitrile copolymer JHG-1;
And/or,
Described anti-collapse dose is in the following treatment agent one or both: polymeric alcohol JLX, polymeric alcohol PE-1, solid polymerization alcohol PGCS-1, sulfonated gilsonite FT-1, cationic emulsified bitumen PC-1, oxidized bitumen GL-1, no fluorescence albino bitumen NFA-25;
And/or,
Described lubricant is one or both in the following treatment agent: nontoxic lubricant FXRH, printing ink RH-3, omnipotent rust-inhibiting lubricant HXR, plant oil modified lubricant CX-3;
And/or,
Described dispersion agent is one or both in the following treatment agent: Sodium dodecylbenzene sulfonate ABS, polyoxyethylene octylphenol ether OP-10, alkylphenol polyoxyethylene OP-15, sorbitan ester SP80;
And/or,
Described rigidity bridging agent is one or both in the following treatment agent: rice bran, sawdust, corn cob, cotton seed hulls;
And/or,
Described rigidity weighting agent is one or both in the following treatment agent: oil-soluble resin, nut-shell, vegetable fibre.
3. drilling fluid according to claim 1 and 2 is characterized in that, in the composition of this drilling fluid:
Anhydrous sodium carbonate Na
2CO
3Be the 0.003N gram;
Coating agent is the natural polymer coating agent IND30 of 0.003N gram;
Tackifier are the biological polymer graft modification thing GEL30 of 0.015N gram;
Fluid loss agent be 0.01N gram in sticking carboxyl methyl cellulose-MV;
Anti-collapse dose of polymeric alcohol PE-1 for the 0.015N gram;
Lubricant is the nontoxic lubricant FXRH of 0.02N gram;
Dispersion agent is the Sodium dodecylbenzene sulfonate ABS of 0.01N gram;
The rigidity bridging agent is the rice bran of 0.05N gram;
The rigidity weighting agent is the oil-soluble resin of 0.08N gram.
4. drilling fluid according to claim 1 and 2 is characterized in that, in the composition of this drilling fluid:
Anhydrous sodium carbonate Na
2CO
3Be the 0.003N gram;
Coating agent is the high adhesive aggregation anionic cellulose PAC-HV of 0.0045N gram;
Tackifier are the sticking carboxyl methyl cellulose-HV of the height of 0.018N gram;
Fluid loss agent is the carboxymethyl starch CMS of 0.015N gram;
Anti-collapse dose is the polymeric alcohol JLX of 0.015N gram and the cationic emulsified bitumen PC-1 of 0.008N gram;
Lubricant is the printing ink RH-3 of 0.025N gram;
Dispersion agent is the polyoxyethylene octylphenol ether OP-10 of 0.013N gram;
The rigidity bridging agent is the cotton seed hulls of 0.065N gram;
The rigidity weighting agent is the nut-shell of 0.115N gram.
5. drilling fluid according to claim 1 and 2 is characterized in that, in the composition of this drilling fluid:
Coating agent is the acrylamide multipolymer Coater-10 of 0.006N gram;
Tackifier are the sticking carboxyl methyl cellulose-HV of the height of 0.02N gram;
Fluid loss agent is the sulfonated-pheno-formoldehyde resin SMP with the 0.02N gram;
Anti-collapse dose is the sulfonated gilsonite FT-1 of 0.01N gram and the no fluorescence albino bitumen NFA-25 of 0.02N gram;
Lubricant is the plant oil modified lubricant CX-3 of 0.03N gram;
Dispersion agent is the sorbitan ester SP80 of 0.015N gram;
The rigidity bridging agent is the sawdust of 0.04N gram and the corn cob of 0.04N gram;
The rigidity weighting agent is the nut-shell and the 0.05N gram vegetable fibre of 0.1N gram.
6. a method for preparing drilling fluid is characterized in that, this method comprises:
The anhydrous sodium carbonate Na that in the N ml water, adds the 0.002N-0.005N gram while stirring
2CO
3With the drilling fluid wilkinite of 0.04N gram, after continuing to stir first Preset Time, leave standstill second Preset Time, obtain the base slurry;
In base slurry, add tackifier, the 0.01N-0.02N gram of coating agent, the 0.015N-0.02N gram of 0.003N-0.006N gram fluid loss agent, 0.015N-0.03N gram anti-collapse dose, the lubricant of 0.02N-0.03N gram, the dispersion agent of 0.01N-0.015N gram, the rigidity bridging agent of 0.05N-0.08N gram and the rigidity weighting agent of 0.08N-0.15N gram while stirring, obtain drilling fluid.
7. method according to claim 6 is characterized in that,
Described coating agent is one or both in the following treatment agent: natural polymer coating agent IND30, high adhesive aggregation anionic cellulose PAC-HV, acrylic acid or the like multiple copolymer HXB, polyacrylic acid potassium K-PAM, acrylamide multipolymer Coater-10;
And/or,
Described tackifier are one or both in the following treatment agent: high sticking carboxyl methyl cellulose-HV, biological polymer XC, biological polymer graft modification thing GEL30, Natvosol HEC, biopolymerization composition copolymer HF-1;
And/or,
Described fluid loss agent is one or both in the following treatment agent: in sticking carboxyl methyl cellulose-MV, low sticking carboxyl methyl cellulose-LV, carboxymethyl starch CMS, sulfonated-pheno-formoldehyde resin SMP, potassium humate OSAM-K, acrylonitrile copolymer JHG-1;
And/or,
Described anti-collapse dose is in the following treatment agent one or both: polymeric alcohol JLX, polymeric alcohol PE-1, solid polymerization alcohol PGCS-1, sulfonated gilsonite FT-1, cationic emulsified bitumen PC-1, oxidized bitumen GL-1, no fluorescence albino bitumen NFA-25;
And/or,
Described lubricant is one or both in the following treatment agent: nontoxic lubricant FXRH, printing ink RH-3, omnipotent rust-inhibiting lubricant HXR, plant oil modified lubricant CX-3;
And/or,
Described dispersion agent is one or both in the following treatment agent: Sodium dodecylbenzene sulfonate ABS, polyoxyethylene octylphenol ether OP-10, alkylphenol polyoxyethylene OP-15, sorbitan ester SP80;
And/or,
Described rigidity bridging agent is one or both in the following treatment agent: rice bran, sawdust, corn cob, cotton seed hulls;
And/or,
Described rigidity weighting agent is one or both in the following treatment agent: oil-soluble resin, nut-shell, vegetable fibre.
8. to go 6 or 7 described methods according to right, it is characterized in that,
The anhydrous sodium carbonate Na that in the N ml water, adds while stirring
2CO
3Be the 0.003N gram;
The coating agent that adds while stirring in the base slurry is the natural polymer coating agent IND30 of 0.003N gram, tackifier are the biological polymer graft modification thing GEL30 of 0.015N gram, fluid loss agent be 0.01N gram in sticking carboxyl methyl cellulose-MV, anti-collapse dose of polymeric alcohol PE-1 for the 0.015N gram, lubricant is the nontoxic lubricant FXRH of 0.02N gram, dispersion agent is the Sodium dodecylbenzene sulfonate ABS of 0.01N gram, the rigidity bridging agent is the rice bran of 0.05N gram, and the rigidity weighting agent is the oil-soluble resin of 0.08N gram.
9. to go 6 or 7 described methods according to right, it is characterized in that,
The anhydrous sodium carbonate Na that in the N ml water, adds while stirring
2CO
3Be the 0.003N gram;
The coating agent that adds while stirring in the base slurry is the high adhesive aggregation anionic cellulose PAC-HV of 0.0045N gram, tackifier are the sticking carboxyl methyl cellulose-HV of the height of 0.018N gram, fluid loss agent is the carboxymethyl starch CMS of 0.015N gram, anti-collapse dose is the polymeric alcohol JLX of 0.015N gram and the cationic emulsified bitumen PC-1 of 0.008N gram, lubricant is the printing ink RH-3 of 0.025N gram, dispersion agent is the polyoxyethylene octylphenol ether OP-10 of 0.013N gram, the rigidity bridging agent is the cotton seed hulls of 0.065N gram, and the rigidity weighting agent is the nut-shell of 0.115N gram.
10. according to claim 6 or 7 described drilling fluids, it is characterized in that,
The coating agent that adds while stirring in the base slurry is the acrylamide multipolymer Coater-10 of 0.006N gram, tackifier are the sticking carboxyl methyl cellulose-HV of the height of 0.02N gram, fluid loss agent is the sulfonated-pheno-formoldehyde resin SMP with the 0.02N gram, anti-collapse dose is the sulfonated gilsonite FT-1 of 0.01N gram and the no fluorescence albino bitumen NFA-25 of 0.02N gram, lubricant is the plant oil modified lubricant CX-3 of 0.03N gram, dispersion agent is the sorbitan ester SP80 of 0.015N gram, the rigidity bridging agent is the sawdust of 0.04N gram and the corn cob of 0.04N gram, and the rigidity weighting agent is the nut-shell and the 0.05N gram vegetable fibre of 0.1N gram.
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| CN2010102481614A CN101935519B (en) | 2010-08-09 | 2010-08-09 | Drilling fluid and preparation method thereof |
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|---|---|---|---|
| CN2010102481614A CN101935519B (en) | 2010-08-09 | 2010-08-09 | Drilling fluid and preparation method thereof |
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| CN101935519B CN101935519B (en) | 2013-06-19 |
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| CN102363635A (en) * | 2011-08-29 | 2012-02-29 | 中国石油化工股份有限公司 | Hydrophobic associating hydroxyethyl cellulose compound, synthesis method thereof, drilling fluid additive and application thereof |
| CN102408881A (en) * | 2011-10-17 | 2012-04-11 | 北京探矿工程研究所 | Drilling flushing fluid and preparation method thereof |
| CN103087694A (en) * | 2011-11-03 | 2013-05-08 | 中国石油天然气集团公司 | Minute soft granule oil-soluble temporary plugging agent |
| CN103146363A (en) * | 2013-03-11 | 2013-06-12 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Composite salt low-activity anti-sloughing drilling fluid and construction method thereof |
| CN103172077A (en) * | 2013-03-18 | 2013-06-26 | 芜湖飞尚非金属材料有限公司 | Preparation method of special trenchless mud bentonite |
| CN103740340A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Expansion and solidification type plugging agent |
| CN103740342A (en) * | 2014-01-09 | 2014-04-23 | 濮阳市诚信钻采助剂有限公司 | High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof |
| CN103788933A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Coalbed methane (CBM) horizontal well drilling fluid |
| CN103952125A (en) * | 2014-05-13 | 2014-07-30 | 中国石油化工股份有限公司 | Blocking solution for MDT (mean down time) testing and production method thereof |
| CN104232035A (en) * | 2013-06-20 | 2014-12-24 | 中国石油化工股份有限公司 | Drilling fluid suitable for low-permeability oil/gas reservoir and preparation method of drilling fluid |
| CN104293327A (en) * | 2014-09-29 | 2015-01-21 | 长春工程学院 | Novel drilling fluid for exploring oil shale |
| CN104513652A (en) * | 2014-12-31 | 2015-04-15 | 西南石油大学 | High-density water-based drilling fluid for drilling shale |
| CN104610941A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工集团公司 | Drilling fluid for shale hydrocarbon reservoir exploration |
| CN104946214A (en) * | 2015-07-10 | 2015-09-30 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Environment-friendly natural polymer drilling fluid |
| CN105038737A (en) * | 2015-06-29 | 2015-11-11 | 北京中科天启油气技术有限公司 | Strong-inhibition anticaving drilling fluid and application thereof |
| CN105112043A (en) * | 2015-10-14 | 2015-12-02 | 河南天祥新材料股份有限公司 | Low-temperature delayed-curing sand-control proppant, preparation method of proppant as well as low-temperature delayed-curing sand-control system |
| CN105199687A (en) * | 2014-06-18 | 2015-12-30 | 成都棕通石油配件有限公司 | Slurry for protecting oil and gas reservoir |
| CN105219363A (en) * | 2014-06-20 | 2016-01-06 | 成都棕通石油配件有限公司 | Fast drilling mud |
| CN105273696A (en) * | 2014-06-19 | 2016-01-27 | 成都棕通石油配件有限公司 | Slurry used for easily collapsed layer drilling |
| CN105273698A (en) * | 2014-06-19 | 2016-01-27 | 成都棕通石油配件有限公司 | Leakproof slurry used for gypsum-salt layers |
| CN105315974A (en) * | 2014-06-17 | 2016-02-10 | 成都棕通石油配件有限公司 | Anti-sloughing drilling fluid |
| CN105385424A (en) * | 2015-11-18 | 2016-03-09 | 辽宁石油化工大学 | Water-based drilling fluid for loosening sandstones |
| CN106398668A (en) * | 2016-08-31 | 2017-02-15 | 中国石油集团渤海钻探工程有限公司 | Environmentally friendly drilling fluid |
| CN106458753A (en) * | 2014-05-05 | 2017-02-22 | 赫尔克里士有限公司 | High temperature and high pressure fluid loss additives and methods of use thereof |
| CN106543988A (en) * | 2016-11-05 | 2017-03-29 | 西南石油大学 | A kind of drilling shale filtrate reducing caving control drilling fluid |
| CN106543991A (en) * | 2016-11-05 | 2017-03-29 | 西南石油大学 | A kind of water base high density temperature resistance antipollution drilling fluid of deep-well saturated salt |
| CN107353883A (en) * | 2017-07-11 | 2017-11-17 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid, solid wall agent and combination application method |
| CN107418531A (en) * | 2017-05-26 | 2017-12-01 | 西南石油大学 | Non-sulfonated high temperature resistance filtrate reducing water-base drilling fluid |
| CN107541195A (en) * | 2017-08-25 | 2018-01-05 | 克拉玛依市创拓有限责任公司 | Filming water-base drilling fluid and preparation method thereof |
| CN108048060A (en) * | 2017-12-08 | 2018-05-18 | 汤小琪 | High sulfur-bearing low-permeability oil gas well operation reservoir Low Damage diverting agent and preparation method thereof |
| CN108864982A (en) * | 2018-08-01 | 2018-11-23 | 伍淼 | A kind of circulating line sealing agent and preparation method |
| CN109233763A (en) * | 2018-10-26 | 2019-01-18 | 中国地质大学（武汉） | A kind of drilling fluid and preparation method thereof for mini pile pore-forming |
| CN109825267A (en) * | 2019-04-01 | 2019-05-31 | 安徽陆海石油助剂科技有限公司 | A kind of drilling fluid anti-collapse and anti-falling filtration agent and its production method |
| CN109868124A (en) * | 2017-12-04 | 2019-06-11 | 中国石油化工股份有限公司 | A kind of drilling fluid and preparation method thereof for displaced type gas cut stratum |
| CN109913187A (en) * | 2019-04-01 | 2019-06-21 | 安徽陆海石油助剂科技有限公司 | A kind of drilling fluid high temperature fluid loss additive and its production method |
| CN111471439A (en) * | 2020-04-11 | 2020-07-31 | 北京宏勤石油助剂有限公司 | Hydroxyl film-forming plugging agent for drilling fluid and preparation method thereof |
| CN111718696A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Composition for drilling fluid, drilling fluid thick plug and preparation method and application thereof |
| CN111718697A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Composition for drilling fluid, drilling fluid thick plug and preparation method and application thereof |
| CN111878018A (en) * | 2020-06-29 | 2020-11-03 | 陕西铁道工程勘察有限公司 | Freezing-thawing-resistant horizontal hole drilling flushing agent for whole hole coring in plateau mountain areas |
| CN111927322A (en) * | 2020-09-16 | 2020-11-13 | 中国石油天然气集团有限公司 | Method for preventing pressure supporting by using rigid particles in directional drilling |
| CN112360371A (en) * | 2020-11-12 | 2021-02-12 | 中国石油天然气集团有限公司 | Method for improving lubricating performance of large-slope and long horizontal well |
| CN114437676A (en) * | 2022-01-08 | 2022-05-06 | 贵州煤田新锐地质勘查有限公司 | Drilling fluid for coal-bed gas well drilling engineering |
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| CN101747876A (en) * | 2008-12-16 | 2010-06-23 | 西部钻探克拉玛依钻井工艺研究院 | Potassium carbonate polyamine drilling fluid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102363635A (en) * | 2011-08-29 | 2012-02-29 | 中国石油化工股份有限公司 | Hydrophobic associating hydroxyethyl cellulose compound, synthesis method thereof, drilling fluid additive and application thereof |
| CN102408881A (en) * | 2011-10-17 | 2012-04-11 | 北京探矿工程研究所 | Drilling flushing fluid and preparation method thereof |
| CN102408881B (en) * | 2011-10-17 | 2013-06-19 | 北京探矿工程研究所 | Drilling flushing fluid and preparation method thereof |
| CN103087694A (en) * | 2011-11-03 | 2013-05-08 | 中国石油天然气集团公司 | Minute soft granule oil-soluble temporary plugging agent |
| CN103146363A (en) * | 2013-03-11 | 2013-06-12 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Composite salt low-activity anti-sloughing drilling fluid and construction method thereof |
| CN103146363B (en) * | 2013-03-11 | 2015-06-17 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Composite salt low-activity anti-sloughing drilling fluid and construction method thereof |
| CN103172077A (en) * | 2013-03-18 | 2013-06-26 | 芜湖飞尚非金属材料有限公司 | Preparation method of special trenchless mud bentonite |
| CN104232035B (en) * | 2013-06-20 | 2017-07-11 | 中国石油化工股份有限公司 | A kind of drilling fluid and preparation method suitable for low permeability reservoirs |
| CN104232035A (en) * | 2013-06-20 | 2014-12-24 | 中国石油化工股份有限公司 | Drilling fluid suitable for low-permeability oil/gas reservoir and preparation method of drilling fluid |
| CN104610941A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工集团公司 | Drilling fluid for shale hydrocarbon reservoir exploration |
| CN103740340A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Expansion and solidification type plugging agent |
| CN103740342A (en) * | 2014-01-09 | 2014-04-23 | 濮阳市诚信钻采助剂有限公司 | High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof |
| CN103740342B (en) * | 2014-01-09 | 2017-11-17 | 濮阳市诚信钻采助剂有限公司 | High-temperature resisting and salt-resisting fluid loss additive and preparation method thereof |
| CN103788933A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Coalbed methane (CBM) horizontal well drilling fluid |
| CN106458753A (en) * | 2014-05-05 | 2017-02-22 | 赫尔克里士有限公司 | High temperature and high pressure fluid loss additives and methods of use thereof |
| CN103952125A (en) * | 2014-05-13 | 2014-07-30 | 中国石油化工股份有限公司 | Blocking solution for MDT (mean down time) testing and production method thereof |
| CN105315974A (en) * | 2014-06-17 | 2016-02-10 | 成都棕通石油配件有限公司 | Anti-sloughing drilling fluid |
| CN105199687A (en) * | 2014-06-18 | 2015-12-30 | 成都棕通石油配件有限公司 | Slurry for protecting oil and gas reservoir |
| CN105273696A (en) * | 2014-06-19 | 2016-01-27 | 成都棕通石油配件有限公司 | Slurry used for easily collapsed layer drilling |
| CN105273698A (en) * | 2014-06-19 | 2016-01-27 | 成都棕通石油配件有限公司 | Leakproof slurry used for gypsum-salt layers |
| CN105219363A (en) * | 2014-06-20 | 2016-01-06 | 成都棕通石油配件有限公司 | Fast drilling mud |
| CN104293327A (en) * | 2014-09-29 | 2015-01-21 | 长春工程学院 | Novel drilling fluid for exploring oil shale |
| CN104513652B (en) * | 2014-12-31 | 2017-09-05 | 西南石油大学 | One kind drilling shale high-density water-based drilling fluid |
| CN104513652A (en) * | 2014-12-31 | 2015-04-15 | 西南石油大学 | High-density water-based drilling fluid for drilling shale |
| CN105038737A (en) * | 2015-06-29 | 2015-11-11 | 北京中科天启油气技术有限公司 | Strong-inhibition anticaving drilling fluid and application thereof |
| CN104946214A (en) * | 2015-07-10 | 2015-09-30 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Environment-friendly natural polymer drilling fluid |
| CN104946214B (en) * | 2015-07-10 | 2017-10-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of natural polymer Environment-protecting Drilling Fluids |
| CN105112043B (en) * | 2015-10-14 | 2018-10-23 | 河南天祥新材料股份有限公司 | A kind of low temperature delay curing sand control proppant and preparation method thereof, low temperature delay curing sand control system |
| CN105112043A (en) * | 2015-10-14 | 2015-12-02 | 河南天祥新材料股份有限公司 | Low-temperature delayed-curing sand-control proppant, preparation method of proppant as well as low-temperature delayed-curing sand-control system |
| CN105385424A (en) * | 2015-11-18 | 2016-03-09 | 辽宁石油化工大学 | Water-based drilling fluid for loosening sandstones |
| CN106398668A (en) * | 2016-08-31 | 2017-02-15 | 中国石油集团渤海钻探工程有限公司 | Environmentally friendly drilling fluid |
| CN106543988A (en) * | 2016-11-05 | 2017-03-29 | 西南石油大学 | A kind of drilling shale filtrate reducing caving control drilling fluid |
| CN106543991A (en) * | 2016-11-05 | 2017-03-29 | 西南石油大学 | A kind of water base high density temperature resistance antipollution drilling fluid of deep-well saturated salt |
| CN106543988B (en) * | 2016-11-05 | 2019-03-26 | 西南石油大学 | A kind of drilling shale filtrate reducing caving control drilling fluid |
| CN107418531A (en) * | 2017-05-26 | 2017-12-01 | 西南石油大学 | Non-sulfonated high temperature resistance filtrate reducing water-base drilling fluid |
| CN107418531B (en) * | 2017-05-26 | 2020-02-14 | 西南石油大学 | Non-sulfonated high-temperature-resistant fluid loss water-based drilling fluid |
| CN107353883A (en) * | 2017-07-11 | 2017-11-17 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid, solid wall agent and combination application method |
| CN107541195A (en) * | 2017-08-25 | 2018-01-05 | 克拉玛依市创拓有限责任公司 | Filming water-base drilling fluid and preparation method thereof |
| CN109868124A (en) * | 2017-12-04 | 2019-06-11 | 中国石油化工股份有限公司 | A kind of drilling fluid and preparation method thereof for displaced type gas cut stratum |
| CN108048060A (en) * | 2017-12-08 | 2018-05-18 | 汤小琪 | High sulfur-bearing low-permeability oil gas well operation reservoir Low Damage diverting agent and preparation method thereof |
| CN108864982A (en) * | 2018-08-01 | 2018-11-23 | 伍淼 | A kind of circulating line sealing agent and preparation method |
| CN109233763B (en) * | 2018-10-26 | 2020-01-17 | 中国地质大学（武汉） | Drilling fluid for forming hole in micro pile and preparation method thereof |
| CN109233763A (en) * | 2018-10-26 | 2019-01-18 | 中国地质大学（武汉） | A kind of drilling fluid and preparation method thereof for mini pile pore-forming |
| CN111718697A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Composition for drilling fluid, drilling fluid thick plug and preparation method and application thereof |
| CN111718696A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Composition for drilling fluid, drilling fluid thick plug and preparation method and application thereof |
| CN109913187A (en) * | 2019-04-01 | 2019-06-21 | 安徽陆海石油助剂科技有限公司 | A kind of drilling fluid high temperature fluid loss additive and its production method |
| CN109825267A (en) * | 2019-04-01 | 2019-05-31 | 安徽陆海石油助剂科技有限公司 | A kind of drilling fluid anti-collapse and anti-falling filtration agent and its production method |
| CN111471439A (en) * | 2020-04-11 | 2020-07-31 | 北京宏勤石油助剂有限公司 | Hydroxyl film-forming plugging agent for drilling fluid and preparation method thereof |
| CN111471439B (en) * | 2020-04-11 | 2022-04-22 | 北京宏勤石油助剂有限公司 | Hydroxyl film-forming plugging agent for drilling fluid and preparation method thereof |
| CN111878018A (en) * | 2020-06-29 | 2020-11-03 | 陕西铁道工程勘察有限公司 | Freezing-thawing-resistant horizontal hole drilling flushing agent for whole hole coring in plateau mountain areas |
| CN111927322A (en) * | 2020-09-16 | 2020-11-13 | 中国石油天然气集团有限公司 | Method for preventing pressure supporting by using rigid particles in directional drilling |
| CN112360371A (en) * | 2020-11-12 | 2021-02-12 | 中国石油天然气集团有限公司 | Method for improving lubricating performance of large-slope and long horizontal well |
| CN114437676A (en) * | 2022-01-08 | 2022-05-06 | 贵州煤田新锐地质勘查有限公司 | Drilling fluid for coal-bed gas well drilling engineering |
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