CN103666415B - Drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof - Google Patents
Drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof Download PDFInfo
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- CN103666415B CN103666415B CN201310715378.5A CN201310715378A CN103666415B CN 103666415 B CN103666415 B CN 103666415B CN 201310715378 A CN201310715378 A CN 201310715378A CN 103666415 B CN103666415 B CN 103666415B
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- effective anti
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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
- C09K8/03—Specific additives for general use in well-drilling compositions
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Abstract
The invention discloses a kind of drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof, first 200-230 part water is added in reactor and be heated to 50-60 DEG C, stirring adds 15-18 part sodium hydroxide, add 25-40 part hydrolyzed polyacrylonitrile again, finally add 45-70 part weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after drying plant drying through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.Drilling fluid Effective Anti temperature drop fluid loss agents dissolution rate of the present invention is fast, can effectively reduce number of dropouts in drilling process, is conducive to protecting reservoir; Heat-resisting property is good, can resist 200 DEG C of high temperature; There is certain lubricity, reduce frictional resistance, improve drilling speed; Production technique is simple, without the need to cooling, greatly reduces labour intensity and equipment investment amount, thus reduces enterprise's production cost, increases economic efficiency.
Description
Technical field
The present invention relates to a kind of assistant for drilling petroleum well and preparation method, be specifically related to a kind of drilling fluid Effective Anti temperature drop fluid loss agents for oil natural gas drilling fluid treatment agent and preparation method.
Background technology
Along with the increase of world energy sources demand and the development of drilling technique, the exploitation of deep stratum oil vapour has become inevitable, in China, this phenomenon is particularly evident, because resource is buried darker, process specifications is high, exploration engineering difficulty is large, in this case, deep drilling exploration will become the important developing direction of of China Petroleum, in drilling process, due to the existence of formation temperature gradient and formation pressure gradient, drilling depth is darker, it is higher that temperature and pressure in well just becomes, and drilling fluid is at high temperature just easy to lose its original performance, high pressure easily makes again hole instability and brings out the down-hole accidents such as jumping chisel simultaneously, therefore how dealing with High Temperature High Pressure is the major issue faced in deep-well drilling process, and from the viewpoint of drilling well and reservoir protection, fluid loss agent is treatment agent very main in drilling fluid, and in order to meet the needs at Complex formation drilling and reservoir protection, drilling operation is to the temperature resistance of filtrate reducer for drilling fluid, the requirement of salt resistance is more and more higher, the a lot of performance of domestic existing filtrate reducer for drilling fluid is not very good, can not satisfy the demands completely, therefore development of new temperature resistance, the fluid loss agent of anti-salt is for the progress and the success ratio that improve exploratory development, for the downhole safety of Oil-Gas Well Engineering, wellbore stability, reservoir protection even environment protection all has great importance.
Summary of the invention
The object of the invention is to provide a kind of drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof, energy stabilizing borehole, and protection oil and gas reservoir, reduces number of dropouts during drilling well, improves drill speed, reduces mud cost.
Technical scheme of the present invention is: a kind of drilling fluid Effective Anti temperature drop fluid loss agents, it is made up of the raw material of following weight proportioning: hydrolyzed polyacrylonitrile 25-40 part, weathered coal 45-70 part, sodium hydroxide 15-18 part, water 200-230 part.
Described hydrolyzed polyacrylonitrile is hydrolyzed polyacrylonitrile ammonium salt or poly hydrolyzate.
A kind of preparation method of drilling fluid Effective Anti temperature drop fluid loss agents, step comprises: first water is added in reactor and be heated to 50-60 DEG C, stirring adds sodium hydroxide, add hydrolyzed polyacrylonitrile again, finally add weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after drying plant drying through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.
Described drying plant is atomization pan spray drying tower.
The invention has the beneficial effects as follows: drilling fluid Effective Anti temperature drop fluid loss agents dissolution rate of the present invention is fast, because its outward appearance is spherical shape fine particle, adds in drilling fluid non-foaming; Can effectively reduce number of dropouts in drilling process, be conducive to protecting reservoir; Heat-resisting property is good, can resist 200 DEG C of high temperature; There is certain lubricity, reduce frictional resistance, improve drilling speed; Drilling fluid Effective Anti temperature drop fluid loss agents production technique of the present invention is simple, without the need to cooling, greatly reduces labour intensity and equipment investment amount, thus reduces enterprise's production cost, increases economic efficiency.
Embodiment
Embodiment 1
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2000kg water in reactor, heat to 50 DEG C, stirring adds 150kg sodium hydroxide, stir again and add 300kg poly hydrolyzate, add 700kg weathered coal again, stirring heating is warmed up to 82 DEG C, reacts 3 hours, gained concentration be 30% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 2
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2100kg water in reactor, heat to 50 DEG C, stirring adds 175kg sodium hydroxide, stir again and add 300kg hydrolyzed polyacrylonitrile ammonium salt, add 600kg weathered coal again, stirring heating is warmed up to 82 DEG C, reacts 3 hours, gained concentration be 28% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 3
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2100kg water in reactor, heat to 60 DEG C, stirring adds 125kg sodium hydroxide, stir again and add 250kg poly hydrolyzate, add 700kg weathered coal again, stirring heating is warmed up to 80 DEG C, reacts 4 hours, gained concentration be 28% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 4
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2000kg water in reactor, heat to 55 DEG C, stirring adds 100kg sodium hydroxide, stir again and add 200kg poly hydrolyzate, add 700kg weathered coal again, stirring heating is warmed up to 85 DEG C, reacts 3 hours, gained concentration be 28% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 5
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2300kg water in reactor, heat to 50 DEG C, stirring adds 100kg sodium hydroxide, stir again and add 300kg poly hydrolyzate, add 500kg weathered coal again, stirring heating is warmed up to 82 DEG C, reacts 4 hours, gained concentration be 24% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 6
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2300kg water in reactor, heat to 60 DEG C, stirring adds 150kg sodium hydroxide, stir again and add 250kg hydrolyzed polyacrylonitrile ammonium salt, add 600kg weathered coal again, stirring heating is warmed up to 83 DEG C, reacts 3 hours, gained concentration be 27% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 7
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2200kg water in reactor, heat to 55 DEG C, stirring adds 125kg sodium hydroxide, stir again and add 200kg hydrolyzed polyacrylonitrile ammonium salt, add 600kg weathered coal again, stirring heating is warmed up to 84 DEG C, reacts 4 hours, gained concentration be 24% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 8
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2100kg water in reactor, heat to 50 DEG C, stirring adds 100kg sodium hydroxide, stir again and add 300kg hydrolyzed polyacrylonitrile ammonium salt, add 500kg weathered coal again, stirring heating is warmed up to 82 DEG C, reacts 3 hours, gained concentration be 25% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Base slurry proportioning: 400ml pure water+0.6gNaCO3+16g wilkinite+8g evaluates soil, at room temperature curing in airtight condition 24h is base slurry.The present invention adds the results of property after base slurry in table 1.
Table 1 drilling fluid Effective Anti temperature drop fluid loss agents adds the results of property after base oar
Can be drawn by table 1, when the present invention has good temperature resistance and a filtration reduction dosage 3%, High Temperature High Pressure dehydration is all lower than 32ml, but embodiment 1 filtrate reducing better effects if, more easy to operate during spraying dry.
Embodiment 9
A kind of drilling fluid Effective Anti temperature drop fluid loss agents, it is made up of the raw material of following weight proportion: hydrolyzed polyacrylonitrile ammonium salt 25-40 part, weathered coal 45-70 part, sodium hydroxide 15-18 part, water 200-230 part.
A kind of preparation method of drilling fluid Effective Anti temperature drop fluid loss agents, step comprises: first water is added in reactor and be heated to 50-60 DEG C, stirring adds sodium hydroxide, add hydrolyzed polyacrylonitrile ammonium salt again, finally add weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after the drying of atomization pan spray drying tower through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.
Embodiment 10
A kind of drilling fluid Effective Anti temperature drop fluid loss agents, it is made up of the raw material of following weight proportion: poly hydrolyzate 25-35 part, weathered coal 45-60 part, sodium hydroxide 15-16 part, water 200-215 part.
A kind of preparation method of drilling fluid Effective Anti temperature drop fluid loss agents, step comprises: first water is added in reactor and be heated to 50-55 DEG C, stirring adds sodium hydroxide, add poly hydrolyzate again, finally add weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after the drying of atomization pan spray drying tower through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.
Embodiment 11
A kind of drilling fluid Effective Anti temperature drop fluid loss agents, it is made up of the raw material of following weight proportion: poly hydrolyzate 35-40 part, weathered coal 60-70 part, sodium hydroxide 16-18 part, water 215-230 part.
A kind of preparation method of drilling fluid Effective Anti temperature drop fluid loss agents, step comprises: first water is added in reactor and be heated to 50-55 DEG C, stirring adds sodium hydroxide, add poly hydrolyzate again, finally add weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after the drying of atomization pan spray drying tower through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.
Embodiment 12
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2000kg water in reactor, heat to 50 DEG C, stirring adds 150kg sodium hydroxide, stir again and add 300kg hydrolyzed polyacrylonitrile ammonium salt, add 450kg weathered coal again, stirring heating is warmed up to 80 DEG C, reacts 3 hours, gained concentration be 25% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Embodiment 13
The preparation method of drilling fluid Effective Anti temperature drop fluid loss agents: first add 2300kg water in reactor, heat to 60 DEG C, stirring adds 180kg sodium hydroxide, stir again and add 400kg poly hydrolyzate, add 700kg weathered coal again, stirring heating is warmed up to 85 DEG C, reacts 4 hours, gained concentration be 26% feed liquid deliver to by take away pump the Effective Anti temperature drop fluid loss agents that namely spraying drying tower atomization drying obtains spherical shape fine particle, use suggestion dosage to be 3% for the first time.
Claims (3)
1. a drilling fluid Effective Anti temperature drop fluid loss agents, is characterized in that: it is made up of the raw material of following weight parts: hydrolyzed polyacrylonitrile 25-40 part, weathered coal 45-70 part, sodium hydroxide 15-18 part, water 200-230 part; The preparation method of described drilling fluid Effective Anti temperature drop fluid loss agents: first water is added in reactor and be heated to 50-60 DEG C, stirring adds sodium hydroxide, add hydrolyzed polyacrylonitrile again, finally add weathered coal, be heated to 80-85 DEG C, reaction 3-4 hour, gained liquid is delivered to after drying plant drying through take away pump and is namely obtained chocolate spherical shape fine particle temperature resistance fluid loss agent.
2. drilling fluid Effective Anti temperature drop fluid loss agents according to claim 1, is characterized in that: described hydrolyzed polyacrylonitrile is hydrolyzed polyacrylonitrile ammonium salt or poly hydrolyzate.
3. drilling fluid Effective Anti temperature drop fluid loss agents according to claim 1, is characterized in that: described drying plant is atomization pan spray drying tower.
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| CN201310715378.5A CN103666415B (en) | 2013-12-23 | 2013-12-23 | Drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof |
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| CN201310715378.5A CN103666415B (en) | 2013-12-23 | 2013-12-23 | Drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof |
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| CN103666415A CN103666415A (en) | 2014-03-26 |
| CN103666415B true CN103666415B (en) | 2016-04-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106608977B (en) * | 2015-10-27 | 2019-05-24 | 新疆真帝石油科技有限公司 | A kind of manufacturing method of sulfonated humic acid polymer and the application of sulfonated humic acid polymer |
| CN109181657A (en) * | 2018-09-20 | 2019-01-11 | 河北硅谷化工有限公司 | Drilling fluid anti-collapse and anti-falling filtration agent |
Citations (5)
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| US4332619A (en) * | 1980-11-13 | 1982-06-01 | Bj-Hughes Inc. | Expansive admixture |
| CN1141327A (en) * | 1995-07-21 | 1997-01-29 | 中国科学院化学研究所 | Well-drilling mud aid contg. various sporopollen attribute, prepn. and usage thereof |
| CN1205356A (en) * | 1997-07-15 | 1999-01-20 | 萍乡市腐植酸工业公司化工厂 | Powdered coal binder and its preparing process |
| CN1212986A (en) * | 1998-08-26 | 1999-04-07 | 辽河石油勘探局钻井一公司 | Fluorescence less anti-collapse dehydration agent and its preparation method |
| CN102352223A (en) * | 2011-07-22 | 2012-02-15 | 石家庄华莱鼎盛科技有限公司 | Hydrolyzed polyacrylonitrile-bipoly ammonium salt for drilling fluid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084780C (en) * | 1999-06-03 | 2002-05-15 | 中国科学院山西煤炭化学研究所 | Lignite resin type high temp. salt resistant filter loss reduction agent and method for prep. same |
| CN100526414C (en) * | 2006-04-14 | 2009-08-12 | 中国石油化工股份有限公司 | Filtrate reducer for oil field well drilling fluid |
| CN102408882A (en) * | 2011-10-11 | 2012-04-11 | 山东轻工业学院 | Phenol-urea-formaldhyde resin modified lignite filtrate loss reducer with high temperature resistance and salt tolerance, and its preparation method |
-
2013
- 2013-12-23 CN CN201310715378.5A patent/CN103666415B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332619A (en) * | 1980-11-13 | 1982-06-01 | Bj-Hughes Inc. | Expansive admixture |
| CN1141327A (en) * | 1995-07-21 | 1997-01-29 | 中国科学院化学研究所 | Well-drilling mud aid contg. various sporopollen attribute, prepn. and usage thereof |
| CN1205356A (en) * | 1997-07-15 | 1999-01-20 | 萍乡市腐植酸工业公司化工厂 | Powdered coal binder and its preparing process |
| CN1212986A (en) * | 1998-08-26 | 1999-04-07 | 辽河石油勘探局钻井一公司 | Fluorescence less anti-collapse dehydration agent and its preparation method |
| CN102352223A (en) * | 2011-07-22 | 2012-02-15 | 石家庄华莱鼎盛科技有限公司 | Hydrolyzed polyacrylonitrile-bipoly ammonium salt for drilling fluid |
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