CN109294536A - Foam drilling fluid for the exploitation of three gas naked eyes - Google Patents
Foam drilling fluid for the exploitation of three gas naked eyes Download PDFInfo
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- CN109294536A CN109294536A CN201811368572.XA CN201811368572A CN109294536A CN 109294536 A CN109294536 A CN 109294536A CN 201811368572 A CN201811368572 A CN 201811368572A CN 109294536 A CN109294536 A CN 109294536A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/38—Gaseous or foamed well-drilling compositions
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Abstract
The present invention relates to a kind of foam drilling fluids for the exploitation of three gas naked eyes comprising clear water, inorganic agent and stabilizer；Inorganic agent includes foam stabilizer and foaming agent, and foam stabilizer includes carboxymethyl starch, carboxyethyl starch and carboxymethyl cellulose, and foaming agent includes neopelex, trimethyl second lactone and octadecyl alcolol；Carboxymethyl starch, carboxyethyl starch, carboxymethyl cellulose, neopelex, trimethyl second lactone and octadecyl alcolol mass ratio are as follows: (7~13): (7~13): (3~7): (3~5): (4~8): (0.5~2).The density of the foam drilling fluid can be lower than 1.00g/cm3, density is adjustable and stability is good, polymorphic type reservoir requirement can be taken into account.
Description
Technical field
The present invention relates to drilling well production technique fields, and in particular to a kind of foam drilling fluid for the exploitation of three gas naked eyes.
Background technique
When the exploitation of three gas naked eyes refers to three kinds of Unconventional gas commingling productions such as sandstone gas, coal bed gas, shale gas, with naked
Eye completion mode realizes the mode of exploitation.It develops and uses as the non-conventional gas of representative using compact sandstone gas, shale gas, coal bed gas at present
For drilling fluid mainly based on polymer, inorganic salt drilling fluid, density is adjustable, but consistently greater than 1.00g/cm3, stored up in face of polymorphic type
Layer, drilling fluid density is excessive to be also easy to produce leakage, and a large amount of drilling fluids injure formation gas fluid ability after entering gas-bearing formation, obtain and do not repay
It loses.
It can be realized density lower than 1.00g/cm using foam, recyclable microvesicle as the drilling fluid of representative3, but density adjustment is tired
Difficulty in drilling process, requires density range different, cannot be considered in terms of polymorphic type reservoir requirement, and such in face of different type reservoir
Type system stability is poor, and using effect is bad.
Therefore, a kind of foam drilling fluid for three gas naked eye production of water horizontal wells how is provided, density can be lower than
1.00g/cm3And density is adjustable, can take into account polymorphic type reservoir requirement, effectively improve system stability, be those skilled in the art
The technical issues that need to address.
Summary of the invention
The object of the present invention is to provide a kind of foam drilling fluid for the exploitation of three gas naked eyes, density can be lower than
1.00g/cm3, density is adjustable and stability is good, polymorphic type reservoir requirement can be taken into account.
In order to solve the above technical problems, the present invention provides a kind of foam drilling fluid for the exploitation of three gas naked eyes comprising
Clear water, inorganic agent and stabilizer；The inorganic agent includes foam stabilizer and foaming agent, and the foam stabilizer includes carboxymethyl starch, carboxylic
Hydroxyethyl starch and carboxymethyl cellulose, the foaming agent include neopelex, trimethyl second lactone and octadecyl alcolol；Institute
State carboxymethyl starch, the carboxyethyl starch, the carboxymethyl cellulose, the neopelex, the trimethyl
The mass ratio of second lactone and the octadecyl alcolol are as follows: (7~13): (7~13): (3~7): (3~5): (4~8): (0.5~2).
Wherein, the carboxymethyl starch in foam stabilizer is dissolved in after water with good thickening, stablizes, water conservation, film forming, suspends
Effect, and easy to use, safety and environmental protection；Carboxyethyl starch plays the role of separation and inhibits, and foaming agent is in foaming process, carboxylic
Hydroxyethyl starch can be such that foaming process stablizes；The aqueous solution of carboxymethyl cellulose (CMC) has thickening, film forming, gluing, moisture
The effects of holding, colloid protection, emulsification and suspension, the foam drilling fluid containing carboxymethyl cellulose (CMC) enables to the borehole wall
The low filter cake of Bao Erjian, permeability is formed, pollution of the foam drilling fluid to reservoir is reduced, reduces its influence to permeability.
Above-mentioned three kinds of foam stabilizers according to said ratio, can make foam drilling fluid can density stabilized reduction during foaming agent foam, and
The stability of foaming structure after foaming agent foam can be improved, so that being separated from each other between each bubble, bubble at this time is similar to gas
Ball, structural stability are good.
Neopelex in foaming agent has good surface living as a kind of anionic surfactant
Property, hydrophily is stronger, is used as air-entrainment；Trimethyl second lactone is common foaming agent；Octadecyl alcolol, emulsifiability is good, and above-mentioned three
Kind foaming agent can foam, so that inorganic agent resulting foam after being dissolved in clear water according to said ratio in water base environment
The density of the density ratio clear water of drilling fluid is low, that is, reaches 1.00g/cm3Effect below, simultaneously, it is ensured that foaming effect is in
Zone of reasonableness can satisfy the density requirement of bubble drilling fluid,
Optionally, the carboxymethyl starch, the carboxyethyl starch, the carboxymethyl cellulose, the detergent alkylate
The mass ratio of sodium sulfonate, the trimethyl second lactone and the octadecyl alcolol are as follows: (9~11): (9~11): (4~6): (3.5~
4.5): (5.5~6.5): (0.5~1.5).
Optionally, the carboxymethyl starch, the carboxyethyl starch, the carboxymethyl cellulose, the detergent alkylate
The mass ratio of sodium sulfonate, the trimethyl second lactone and the octadecyl alcolol are as follows: (9.8~10.2): (9.8~10.2): (4.8~
5.2): (3.8~4.2): (5.8~6.2): (0.8~1.2).
Optionally, the mass ratio of the clear water, the inorganic agent and the stabilizer is (700~1300): (25~45):
(0.5~2).
Optionally, the mass ratio of the clear water, the inorganic agent and the stabilizer is (800~1200): (32~38):
(0.8~1.2).
Optionally, the stabilizer is sodium bicarbonate.
Optionally, the clear water is scene water intaking.
Specific embodiment
It is right combined with specific embodiments below in order to make those skilled in the art more fully understand technical solution of the present invention
The present invention is described in further detail.
The embodiment of the invention provides a kind of foam drilling fluids for the exploitation of three gas naked eyes, wherein the exploitation of three gas naked eyes
When referring to three kinds of Unconventional gas commingling productions such as sandstone gas, coal bed gas, shale gas, exploitation is realized in a manner of barefoot completion
Mode.
The foam drilling fluid includes clear water, inorganic agent and stabilizer, wherein inorganic agent includes foam stabilizer and foaming agent, surely
Infusion includes carboxymethyl starch, carboxyethyl starch and carboxymethyl cellulose；Foaming agent includes neopelex, trimethyl
Second lactone and octadecyl alcolol；Stabilizer improves foaming agent and foam stabilizer dissolution and dispersion effect, further increases in foam drilling fluid
The stability of foam.Specifically, each component of inorganic agent is prepared according to the following ratio, carboxymethyl starch, carboxyethyl starch, carboxylic first
Base cellulose, neopelex, trimethyl second lactone and octadecyl alcolol mass ratio are as follows: (7~13): (7~13): (3~
7): (3~5): (4~8): (0.5~2).
Wherein, the carboxymethyl starch in foam stabilizer is dissolved in after water with good thickening, stablizes, water conservation, film forming, suspends
Effect, and easy to use, safety and environmental protection；Carboxyethyl starch plays the role of separation and inhibits, and foaming agent is in foaming process, carboxylic
Hydroxyethyl starch can be such that foaming process stablizes；The aqueous solution of carboxymethyl cellulose (CMC) has thickening, film forming, gluing, moisture
The effects of holding, colloid protection, emulsification and suspension, the foam drilling fluid containing carboxymethyl cellulose (CMC) enables to the borehole wall
The low filter cake of Bao Erjian, permeability is formed, pollution of the foam drilling fluid to reservoir is reduced, reduces its influence to permeability.
Above-mentioned three kinds of foam stabilizers according to said ratio, can make foam drilling fluid can density stabilized reduction during foaming agent foam, and
The stability of foaming structure after foaming agent foam can be improved, so that being separated from each other between each bubble, bubble at this time is similar to gas
Ball, structural stability are good.
Neopelex in foaming agent has good surface living as a kind of anionic surfactant
Property, hydrophily is stronger, is used as air-entrainment；Trimethyl second lactone is common foaming agent；Octadecyl alcolol, emulsifiability is good, and above-mentioned three
Kind foaming agent can foam, so that inorganic agent resulting foam after being dissolved in clear water according to said ratio in water base environment
The density of the density ratio clear water of drilling fluid is low, that is, reaches 1.00g/cm3Effect below, simultaneously, it is ensured that foaming effect is in
Zone of reasonableness can satisfy the density requirement of bubble drilling fluid.
Further, carboxymethyl starch in inorganic agent, carboxyethyl starch, carboxymethyl cellulose, neopelex,
The mass ratio of trimethyl second lactone and octadecyl alcolol are as follows: (9~11): (9~11): (4~6): (3.5~4.5): (5.5~6.5):
(0.5~1.5).
Further, carboxymethyl starch, carboxyethyl starch, carboxymethyl cellulose, dodecyl benzene sulfonic acid in inorganic agent
The mass ratio of sodium, trimethyl second lactone and octadecyl alcolol are as follows: (9.8~10.2): (9.8~10.2): (4.8~5.2): (3.8~
4.2): (5.8~6.2): (0.8~1.2).
In above-mentioned foam drilling fluid, the mass ratio of clear water, inorganic agent and stabilizer is (700~1300): (25~45):
(0.5~2).
Further, the mass ratio of clear water, inorganic agent and stabilizer is (800~1200): (32~38): (0.8~
1.2)。
In above-mentioned foam drilling fluid, clear water is scene water intaking, and stabilizer is sodium bicarbonate, convenient and good economy performance of drawing materials.
Certainly, in the present embodiment, stabilizer can also select sodium carbonate, and sodium bicarbonate can ionize out hydrogen ion after being dissolved in water, make
Solution is in alkalescent, provides a kind of environment of suitable foaming for foaming agent.
Certainly, said ratio is not done and is limited to, the performance for the foam drilling fluid prepared by said ratio can reach
To ideal target value, specifically, the density value of the foam drilling fluid is 0.75g/cm3~1.00g/cm3, apparent viscosity is
15mPas~35mPas, plastic viscosity are 8mPas~25mPas, and yield value is 10mPas~25mPas, are moved
Modeling is than being 0.6Pa/ (mPas)~1.0Pa/ (mPas).Different types of reservoir can be met to the density need of foam drilling fluid
It asks.
When foam drilling fluid is prepared in situ in exploitation, due to the difference of Reservoir type, to the density range of foam drilling fluid
It is required that it is different, the foam drilling fluid prepared according to above-mentioned basic proportion can be specifically adjusted according to field demand.Specifically,
Can by into foam drilling fluid be added clear water to increase its density, can also by into foam drilling fluid be added foam stabilizer and
Foaming agent increases foam volume to reduce its density, the foam drilling fluid is enabled to be suitable for different types of reservoir, applicability
It is good.
Following embodiment is only intended to that foam drilling fluid is described in detail during the preparation process, adjust clear water or inorganic agent plus
The variable density situation for entering foam drilling fluid after amount, does not limit the protection scope of invention in any way.
(1) embodiment 1: preparing foam drilling fluid, and clear water 1300 is taken in stirring cup, under blender stirring, is added
Carboxymethyl starch 7, carboxyethyl starch 7, carboxymethyl cellulose 3, neopelex 3, trimethyl second lactone 3, octadecyl alcolol
4, sodium bicarbonate 1, stirring to each section are uniformly mixed, and the density for preparing foam drilling fluid are directly measured using density balance, finally
Foam drilling fluid density is 0.98g/cm3。
(2) embodiment 2: preparing foam drilling fluid, prepares foam drilling fluid according to the same manner as in Example 1, difference
Place is to change each component dosage, mass ratio are as follows: clear water 700, carboxymethyl starch 13, carboxyethyl starch 13, carboxymethyl cellulose
Plain 7, neopelex 5, trimethyl second lactone 5, octadecyl alcolol 2, sodium bicarbonate 2.Continuing addition each component cannot be uniform
Mixing, final foam drilling fluid density are 0.75g/cm3。
(3) embodiment 3: preparing foam drilling fluid, and the additional amount of foaming agent is adjusted by gradient.
Foam drilling fluid is prepared according to the same manner as in Example 1, wherein the density of A point is each component according to following matter
Measure ratio: clear water 1000, carboxymethyl starch 10, carboxyethyl starch 10, carboxymethyl cellulose 5, neopelex 4, front three
The density for the foam drilling fluid that base second lactone 6, octadecyl alcolol 1, sodium bicarbonate 1 are prepared, is gradually mentioned with 0.25,0.5,0.25 interval
The additional amount of neopelex, trimethyl second lactone, octadecyl alcolol in high-incidence infusion, and continuously record B, C, D, E totally 4
A, concretely, the mass ratio of each component is in clear water 1000, carboxymethyl starch 10, carboxyethyl starch 10, carboxymethyl cellulose
5, on the basis of sodium bicarbonate 1 is constant, the foaming agent of B point is neopelex 4.25, trimethyl second lactone 6.5, ten
Eight alcohol 1.25；The foaming agent of C point is neopelex 4.5, trimethyl second lactone 7, octadecyl alcolol 1.5；The foaming agent of D point
For neopelex 4.75, trimethyl second lactone 7.5, octadecyl alcolol 1.75；The foaming agent of E point is dodecyl benzene sulfonic acid
Sodium 5, trimethyl second lactone 8, octadecyl alcolol 2.
Measured respectively with density balance B point, C point, D point, E point foam drilling fluid density, compare the foam drilling of 5 points
The Density Distribution of liquid, is shown in Table 1.
The Density Distribution one of 1 foam drilling fluid of table
(4) embodiment 4: preparing foam drilling fluid, and the additional amount of clear water is adjusted by gradient, on the basis of above-mentioned A point,
The additional amount of clear water is gradually increased with 50 interval, to dilute the foam drilling fluid of A point, and continuously records F, G, H, J totally 4 points
(additional amount of clear water is followed successively by 1050,1100,1150,1200), then the bubble of F point, G point, H point, J point is measured with density balance respectively
The density of foam drilling fluid compares the Density Distribution for the foam drilling fluid that 5 are selected, is shown in Table 2.
The Density Distribution two of 2 foam drilling fluid of table
As can be seen that by adjusting Solid Free foam drilling fluid inorganic agent ratio, can be realized density 0.75~
1.00g/cm3Adjustment in range.Specifically, by above-mentioned table 1 as can be seen that increasing matching for the foaming agent in foam drilling fluid
Than the density of foam drilling fluid can be reduced；It, can by above-mentioned table 2 as can be seen that increasing the proportion of the clear water in foam drilling fluid
Increase the density of foam drilling fluid.Also, with the addition of foaming agent, the variable density of foam drilling fluid obtained is stablized, just
In control to obtain the foam drilling fluid with target density.
Due in the process for preparation of the foam drilling fluid, Solid Free material, so that infiltration of the foam drilling fluid to stratum
Rate influence it is smaller, can effective protection reservoir, will not influence the yield of three gas.
It is to foam drilling fluid provided by the present embodiment below to different rock core type (i.e. different reservoir) pollution levels
Test, wherein rock core type includes tight sand, coal seam and shale, and in test, different rock core types is arranged to ruler
The very little plunger for 38mm × 70mm.Referring to national standard SY/T 5336-1996, it is 2MPa, confining pressure 2.5MPa that pressure is driven in setting.
It is seeped respectively with the gas that normal saline solution measures after the foam drilling fluid pollution in rock core gas original permeability and the present embodiment
Saturating rate, and the resume permeability rate after pollution is calculated, it the results are shown in Table 3.
Pollution level of 3 foam drilling fluid of table to different rock core types
As it can be seen that the three types core column such as foam drilling fluid pollution compactness sand rock and coal bed, shale provided by the present embodiment
After plug, plunger resume permeability rate is respectively 91.67%, 93.55%, 84.21%, and resume permeability effect is ideal, shows this
Foam drilling fluid is ideal in face of three types reservoir control leakage effect, lower to stratum pollution level.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (7)
1. a kind of foam drilling fluid for the exploitation of three gas naked eyes, which is characterized in that including clear water, inorganic agent and stabilizer；
The inorganic agent includes foam stabilizer and foaming agent, and the foam stabilizer includes carboxymethyl starch, carboxyethyl starch and carboxymethyl
Cellulose, the foaming agent include neopelex, trimethyl second lactone and octadecyl alcolol；
It is the carboxymethyl starch, the carboxyethyl starch, the carboxymethyl cellulose, the neopelex, described
The mass ratio of trimethyl second lactone and the octadecyl alcolol are as follows: (7~13): (7~13): (3~7): (3~5): (4~8): (0.5
~2).
2. foam drilling fluid according to claim 1, which is characterized in that the carboxymethyl starch, the carboxyethyl starch,
The carboxymethyl cellulose, the neopelex, the trimethyl second lactone and the octadecyl alcolol mass ratio are as follows:
(9~11): (9~11): (4~6): (3.5~4.5): (5.5~6.5): (0.5~1.5).
3. foam drilling fluid according to claim 2, which is characterized in that the carboxymethyl starch, the carboxyethyl starch,
The carboxymethyl cellulose, the neopelex, the trimethyl second lactone and the octadecyl alcolol mass ratio are as follows:
(9.8~10.2): (9.8~10.2): (4.8~5.2): (3.8~4.2): (5.8~6.2): (0.8~1.2).
4. foam drilling fluid according to claim 1-3, which is characterized in that the clear water, the inorganic agent and
The mass ratio of the stabilizer is (700~1300): (25~45): (0.5~2).
5. foam drilling fluid according to claim 4, which is characterized in that the clear water, the inorganic agent and the stabilization
The mass ratio of agent is (800~1200): (32~38): (0.8~1.2).
6. foam drilling fluid according to claim 1-3, which is characterized in that the stabilizer is sodium bicarbonate.
7. foam drilling fluid according to claim 1-3, which is characterized in that the clear water is scene water intaking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811368572.XA CN109294536B (en) | 2018-11-16 | 2018-11-16 | Foam drilling fluid for three-gas open hole exploitation |
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|---|---|---|---|
| CN201811368572.XA CN109294536B (en) | 2018-11-16 | 2018-11-16 | Foam drilling fluid for three-gas open hole exploitation |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5716910A (en) * | 1995-09-08 | 1998-02-10 | Halliburton Company | Foamable drilling fluid and methods of use in well drilling operations |
| CN1342189A (en) * | 1999-02-09 | 2002-03-27 | Masi科技股份有限公司 | Aphron-containing aqueous well drilling and servicing fluids |
| US20030221832A1 (en) * | 2002-05-31 | 2003-12-04 | Reddy B. Raghva | Methods of generating gas in well fluids |
| CN1556170A (en) * | 2004-01-05 | 2004-12-22 | 辽河石油勘探局 | Micro foam foaming agent and its well drilling liquid system formula |
| US20050137114A1 (en) * | 2003-12-23 | 2005-06-23 | Weatherford/Lamb, Inc. | Novel foamer composition and methods for making and using same |
| CN101148579A (en) * | 2007-10-27 | 2008-03-26 | 东营泰尔石油技术有限公司 | High temperature resistant circulating micro-foam drilling fluid or completion fluid |
| CN101244372A (en) * | 2007-06-28 | 2008-08-20 | 中国地质大学（北京） | Foaming agent and circulation microvesicle drilling fluids and drilling technique |
| CN101643641A (en) * | 2009-06-18 | 2010-02-10 | 东营泰尔石油技术有限公司 | Low solid phase and micro-foam drilling fluid or completion fluid capable of being used circularly |
| CN101974316A (en) * | 2010-10-14 | 2011-02-16 | 中国海洋石油总公司 | Drilling fluid for drilling |
| CN102952529A (en) * | 2011-08-30 | 2013-03-06 | 中国石油化工股份有限公司 | Solid-phase-free water-based microbubble drilling fluid |
| CN104087273A (en) * | 2014-05-30 | 2014-10-08 | 中国石油化工集团公司 | Hypersalinity solid-free micro-foam drilling fluid or completion fluid |
| CN106010481A (en) * | 2016-06-03 | 2016-10-12 | 北京力会澜博能源技术有限公司 | Coal bed gas fuzzy-ball drilling fluid |
| CN106566499A (en) * | 2016-10-11 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Plugging slurry for enhancing pressure-bearing capacity of leakage formation and preparation method thereof |
| CN106587716A (en) * | 2017-01-06 | 2017-04-26 | 中国铁道科学研究院铁道建筑研究所 | Organosilicone modified foaming agent and application thereof in foamed light soil |
| CN107556987A (en) * | 2017-08-24 | 2018-01-09 | 北京力会澜博能源技术有限公司 | Coal bed gas suede capsule drilling fluid site operation compound method |
| CN108084987A (en) * | 2017-12-25 | 2018-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of natural gas well turnaround fracture microvesicle temporarily blocks up liquid filler and its application |
-
2018
- 2018-11-16 CN CN201811368572.XA patent/CN109294536B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5716910A (en) * | 1995-09-08 | 1998-02-10 | Halliburton Company | Foamable drilling fluid and methods of use in well drilling operations |
| CN1342189A (en) * | 1999-02-09 | 2002-03-27 | Masi科技股份有限公司 | Aphron-containing aqueous well drilling and servicing fluids |
| US20030221832A1 (en) * | 2002-05-31 | 2003-12-04 | Reddy B. Raghva | Methods of generating gas in well fluids |
| US20050137114A1 (en) * | 2003-12-23 | 2005-06-23 | Weatherford/Lamb, Inc. | Novel foamer composition and methods for making and using same |
| CN1556170A (en) * | 2004-01-05 | 2004-12-22 | 辽河石油勘探局 | Micro foam foaming agent and its well drilling liquid system formula |
| CN101244372A (en) * | 2007-06-28 | 2008-08-20 | 中国地质大学（北京） | Foaming agent and circulation microvesicle drilling fluids and drilling technique |
| CN101148579A (en) * | 2007-10-27 | 2008-03-26 | 东营泰尔石油技术有限公司 | High temperature resistant circulating micro-foam drilling fluid or completion fluid |
| CN101643641A (en) * | 2009-06-18 | 2010-02-10 | 东营泰尔石油技术有限公司 | Low solid phase and micro-foam drilling fluid or completion fluid capable of being used circularly |
| CN101974316A (en) * | 2010-10-14 | 2011-02-16 | 中国海洋石油总公司 | Drilling fluid for drilling |
| CN102952529A (en) * | 2011-08-30 | 2013-03-06 | 中国石油化工股份有限公司 | Solid-phase-free water-based microbubble drilling fluid |
| CN104087273A (en) * | 2014-05-30 | 2014-10-08 | 中国石油化工集团公司 | Hypersalinity solid-free micro-foam drilling fluid or completion fluid |
| CN106010481A (en) * | 2016-06-03 | 2016-10-12 | 北京力会澜博能源技术有限公司 | Coal bed gas fuzzy-ball drilling fluid |
| CN106566499A (en) * | 2016-10-11 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Plugging slurry for enhancing pressure-bearing capacity of leakage formation and preparation method thereof |
| CN106587716A (en) * | 2017-01-06 | 2017-04-26 | 中国铁道科学研究院铁道建筑研究所 | Organosilicone modified foaming agent and application thereof in foamed light soil |
| CN107556987A (en) * | 2017-08-24 | 2018-01-09 | 北京力会澜博能源技术有限公司 | Coal bed gas suede capsule drilling fluid site operation compound method |
| CN108084987A (en) * | 2017-12-25 | 2018-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of natural gas well turnaround fracture microvesicle temporarily blocks up liquid filler and its application |
Non-Patent Citations (6)
| Title |
|---|
| LIHUI ZHENG: "A Novel Multifunctional Bionic Fuzzy-Ball Drilling Fluid", 《APPLICATION OF CHEMICAL ENGINEERING》 * |
| YANG PENG: "Development and application of an oil-based circulating micro-foam drilling fluid", 《NATURAL GAS INDUSTRY》 * |
| ZHENG,LH: "Optimization of rheological parameter for micro-bubble drilling fluids by multiple regression experimental design", 《JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY》 * |
| 谢建宇: "微泡钻井液室内研究及性能评价", 《精细石油化工进展》 * |
| 郑力会: "含绒囊结构的新型低密度钻井液", 《石油学报》 * |
| 郑力会: "绒囊工作液防漏堵漏机理", 《科学通报》 * |
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Inventor after: Yang Gang Inventor after: Meng Shangzhi Inventor after: Zheng Lihui Inventor after: Ma Tengfei Inventor after: Lin Liang Inventor after: Zhang Linqiang Inventor after: Liu Enqi Inventor after: Chen Xiaobo Inventor after: Wei Panfeng Inventor before: Yang Gang Inventor before: Meng Shangzhi Inventor before: Zheng Lihui Inventor before: Ma Tengfei Inventor before: Lin Liang Inventor before: Zhang Linqiang Inventor before: Chen Xiaobo Inventor before: Wei Panfeng |