CN102965083B - Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent - Google Patents
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent Download PDFInfo
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- CN102965083B CN102965083B CN201210455875.1A CN201210455875A CN102965083B CN 102965083 B CN102965083 B CN 102965083B CN 201210455875 A CN201210455875 A CN 201210455875A CN 102965083 B CN102965083 B CN 102965083B
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Abstract
The present invention relates to drilling fluid compound resin high temperature resistance anti-collapse dehydration agent, belong to drilling fluid additive, its component is: by following weight percent meter: it is that water is made that phenol 5-15%, formaldehyde 20-30%, sodium sulphite anhydrous 99.3 5-10%, pyrosulphite receive 3-8%, sodium hydroxid 10-18%, humic acids 30-55% and surplus, the stably dispersing state of clay can be ensured, can not assemble and become large, ensure there are enough clay particles in drilling fluid, be conducive to forming fine and close mud cake; The deformability of resin in addition, makes that the mud cake of formation is thin, fine and close, compressibility is good, and dehydration declines; Can also increase the oilness of mud cake, at high temperature fine and close mud cake plays anti-collapse effect by retaining wall, and has certain salt resistance.
Description
Technical field
The present invention relates to drilling fluid additive, particularly a kind of drilling fluid compound resin high temperature resistance anti-collapse dehydration agent.
Background technology
Hole instability is one of drilling engineering main difficult technical, and drilling fluid is one of key factor affecting wellbore stability.Therefore, development research goes out the caving-preventing sloughing drilling fluid system of excellent property, solves the destabilization problems that collapses of the borehole wall in drilling process, keeps wellbore stability, is the important technology ensureing wellbore quality, improve drilling speed.
Can adopt at oil, easily adopt reserves when constantly reducing, In Oil Field Exploration And Development to ocean, bad ground, middle-deep well, deep-well and the development of ultra deep well aspect, bottom temperature improves rapidly with the increase of well depth, brings many problems to cementing operation.Existing anti-collapse dehydration agent at high temperature weak effect, can not meet the actual functional need of drilling well under high temperature.
Summary of the invention
The object of the invention is to design a kind of anti-collapse dehydration agent that can use in hot environment.
Technical scheme of the present invention is, drilling fluid compound resin high temperature resistance anti-collapse dehydration agent is by following weight percent meter: phenol 5-15%, formaldehyde 20-30%, sodium sulphite anhydrous 99.3 5-10%, Sodium Pyrosulfite 3-8%, sodium hydroxide 10-18%, humic acids 30-55% and surplus are that water is made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 80-100 DEG C, reaction 2.5-3.5 hour, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 130-150 DEG C, reaction 3-5 hour, obtain reaction material, dry, packaging final prod, described humic acids is brown coal.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention also can by following weight percent meter: phenol 5-10%, formaldehyde 20-25%, sodium sulphite anhydrous 99.3 5-7%, Sodium Pyrosulfite 3-6%, sodium hydroxide 10-14%, humic acids 42-55% and surplus are that water is made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 80-90 DEG C, reaction 2.5-3 hour, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 130-140 DEG C, reaction 3-4 hour, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention is by following weight percent meter: phenol 10-15%, formaldehyde 20-30%, sodium sulphite anhydrous 99.3 7-10%, Sodium Pyrosulfite 6-8%, sodium hydroxide 14-18%, humic acids 30-41% and surplus are that water is made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 90-100 DEG C, reaction 3-3.5 hour, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 140-150 DEG C, reaction 4-5 hour, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention, through repeatedly testing, achieves good effect, the stably dispersing state of clay can be ensured, can not assemble and become large, ensure there are enough clay particles in drilling fluid, be conducive to forming fine and close mud cake; The deformability of resin in addition, makes that the mud cake of formation is thin, fine and close, compressibility is good, and dehydration declines; Can also increase the oilness of mud cake, at high temperature fine and close mud cake plays anti-collapse effect by retaining wall, and has certain salt resistance, and high temperature resistance can reach 110-150 DEG C, and action effect is better than three traditional sulphur treatment agents, specifically sees the following form:
Table 1 drilling fluid compound resin high temperature resistance anti-collapse dehydration agent physical and chemical index
| Project | Index |
| Moisture content, % | ≤10 |
| Outward appearance | Ash dark brown solid powder |
Table 2 drilling fluid and dehydration agent of the present invention as follows with the use of effect
Embodiment
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 5%, formaldehyde 20%, sodium sulphite anhydrous 99.3 10%, Sodium Pyrosulfite 8%, sodium hydroxide 18%, humic acids 30% and water 9% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 80 DEG C, react 2.5 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 130 DEG C, react 3 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 15%, formaldehyde 30%, sodium sulphite anhydrous 99.3 5%, Sodium Pyrosulfite 3%, sodium hydroxide 10%, humic acids 32% and water 5% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 85 DEG C, react 3 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 135 DEG C, react 3.5 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 8%, formaldehyde 25%, sodium sulphite anhydrous 99.3 7%, Sodium Pyrosulfite 5%, sodium hydroxide 13%, humic acids 40% and water 2% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 90 DEG C, react 2.5 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 140 DEG C, react 4 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 5%, formaldehyde 20%, sodium sulphite anhydrous 99.3 5%, Sodium Pyrosulfite 3%, sodium hydroxide 10%, humic acids 55% and water 2% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 95 DEG C, react 3 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 145 DEG C, react 4.5 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 9%, formaldehyde 22%, sodium sulphite anhydrous 99.3 9%, Sodium Pyrosulfite 7%, sodium hydroxide 16%, humic acids 35% and water 2% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 100 DEG C, react 3.5 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 150 DEG C, react 5 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 6%, formaldehyde 28%, sodium sulphite anhydrous 99.3 6%, Sodium Pyrosulfite 6%, sodium hydroxide 15%, humic acids 34% and water 5% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 100 DEG C, react 2.5 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 130 DEG C, react 3 hours, obtain reaction material, dry, packaging final prod.
Drilling fluid compound resin high temperature resistance anti-collapse dehydration agent of the present invention in the specific implementation, by following weight percent meter: phenol 10%, formaldehyde 20%, sodium sulphite anhydrous 99.3 5%, Sodium Pyrosulfite 4%, sodium hydroxide 10%, humic acids 45% and water 6% are made, during preparation, by water, humic acids, sodium hydroxide is added to reactor (adding in proportion) and is warming up to 80-DEG C, react 3.5 hours, slagging-off, obtain mother liquor, phenol is added in mother liquor, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite (adding in proportion), be warming up to 150 DEG C, react 5 hours, obtain reaction material, dry, packaging final prod.
Claims (4)
1. a drilling fluid compound resin high temperature resistance anti-collapse dehydration agent, it is characterized in that, by following weight percent meter: phenol 5-10%, formaldehyde 20-25%, sodium sulphite anhydrous 99.3 5-7%, Sodium Pyrosulfite 3-6%, sodium hydroxide 10-14%, humic acids 42-55% and surplus are that water is made; Preparation method is: according to described formula, water, humic acids, sodium hydroxide are added to reactor and are warming up to 80-100 DEG C, reaction 2.5-3.5 hour, slagging-off, obtains mother liquor, adds phenol, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite in mother liquor, be warming up to 130-150 DEG C, reaction 3-5 hour, obtains reaction material, dries.
2. drilling fluid compound resin high temperature resistance anti-collapse dehydration agent according to claim 1, it is characterized in that, preparation method is: according to formula according to claim 1, and water, humic acids, sodium hydroxide are added to reactor and are warming up to 80-90 DEG C, reaction 2.5-3 hour, slagging-off, obtains mother liquor, adds phenol, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite in mother liquor, be warming up to 130-140 DEG C, reaction 3-4 hour, obtains reaction material, dries.
3. drilling fluid compound resin high temperature resistance anti-collapse dehydration agent according to claim 1, it is characterized in that, by following weight percent meter: phenol 10-15%, formaldehyde 20-30%, sodium sulphite anhydrous 99.3 7-10%, Sodium Pyrosulfite 6-8%, sodium hydroxide 14-18%, humic acids 30-41% and surplus are that water is made.
4. drilling fluid compound resin high temperature resistance anti-collapse dehydration agent according to claim 3, it is characterized in that, preparation method is: according to formula according to claim 3, during preparation, water, humic acids, sodium hydroxide are added to reactor and are warming up to 90-100 DEG C, reaction 3-3.5 hour, slagging-off, obtain mother liquor, in mother liquor, add phenol, formaldehyde, sodium sulphite anhydrous 99.3, Sodium Pyrosulfite, be warming up to 140-150 DEG C, reaction 4-5 hour, obtain reaction material, dry.
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| CN103193946B (en) * | 2013-04-28 | 2014-08-06 | 西南林业大学 | Method for synthesizing base resin by utilizing humic acid |
| CN104830288A (en) * | 2015-04-27 | 2015-08-12 | 北京中科天启油气技术有限公司 | Borehole stabilizer for drilling fluid, preparation method and applications thereof |
| CN105505345B (en) * | 2015-12-22 | 2017-05-17 | 松原市海洋石油技术有限公司 | Anti-collapse plugging agent for drilling fluid and preparation method and application thereof |
| CN105885808A (en) * | 2016-05-17 | 2016-08-24 | 重庆市天泽钻井材料有限责任公司 | Chromium-free sulfonated lignite for drilling fluid |
| CN107892905A (en) * | 2017-11-22 | 2018-04-10 | 中国石油集团渤海钻探工程有限公司 | Polymer microballoon type borehole wall anti-sloughing agent and preparation method thereof |
| CN111690385A (en) * | 2020-06-30 | 2020-09-22 | 乌海市盛世源石油科技有限公司 | Filtrate reducer lignite resin for drilling fluid and preparation method thereof |
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