CN108410438A - Drillable brittle gel partition working solution and preparation method thereof - Google Patents
Drillable brittle gel partition working solution and preparation method thereof Download PDFInfo
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- CN108410438A CN108410438A CN201810338475.XA CN201810338475A CN108410438A CN 108410438 A CN108410438 A CN 108410438A CN 201810338475 A CN201810338475 A CN 201810338475A CN 108410438 A CN108410438 A CN 108410438A
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- 239000012224 working solution Substances 0.000 title claims abstract description 33
- 238000005192 partition Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003349 gelling agent Substances 0.000 claims abstract description 29
- 239000003381 stabilizer Substances 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 5
- 238000007711 solidification Methods 0.000 claims description 29
- 230000008023 solidification Effects 0.000 claims description 29
- 239000012190 activator Substances 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 20
- 239000003292 glue Substances 0.000 claims description 13
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Natural products OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 7
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000002776 aggregation Effects 0.000 claims description 6
- 229920006321 anionic cellulose Polymers 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 229910052601 baryte Inorganic materials 0.000 claims description 6
- 239000010428 baryte Substances 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 238000009628 steelmaking Methods 0.000 claims description 6
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001285 xanthan gum Polymers 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- YBEFXFBAXWUBNQ-UHFFFAOYSA-N n-methylmethanamine;propan-1-amine Chemical compound CNC.CCCN YBEFXFBAXWUBNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 10
- 230000003213 activating effect Effects 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 5
- -1 Amido propylamine Chemical compound 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- WGYKZJWCGVVSQN-UHFFFAOYSA-N mono-n-propyl amine Natural products CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- 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
- C09K8/40—Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a drillable brittle gel partition working solution, which comprises the following components: the curing agent comprises water, a suspension stabilizer, a gelling agent, an activating agent, a curing reinforcing agent and a retarder, and comprises the following components in parts by weight: water: suspension stabilizer: gelling agent: activating agent: curing reinforcing agent: the retarder = 60-80: 0.3-0.5: 100-120: 2-4: 1-2: 0.5-1.5. The invention has simple formula, convenient field preparation, good flowing property, controllable gelling time and wide applicable temperature range, has good gelling property, strong pressure bearing and gas sealing capability and crisp texture after the gel partition section is formed by simulating the underground temperature and pressure condition and curing, and can break gel by adopting a drilling removal mode.
Description
Technical field
The present invention relates to petroleum drilling engineering technical fields, and brittleness gel compartment working solution can be bored by specifically relating to one kind
And preparation method thereof, use fine controlled pressure drilling safely tripping mistake particularly suitable for narrow ' Safe Density Windows and multiple pressure Force system
It is formed in journey and effectively blocks compartment, reached and prevent stratum high-pressure fluid from invading, reduce wastage, reduce well control risk.
Background technology
Fine controlled pressure drilling is applied in the area such as Sichuan Mo Xi-high stone ladder and lower Chuan Dong, is efficiently solved because narrow safety is close
Severe circulation loss caused by degree window, spray leakage deposit together, are difficult to the engineering roadblock crept into.But make a trip and Completion Operations in, due to
Stratum slit development, Density Window are narrow, if according to conventional additional wells liquid Safe Density value, i.e., are removed after " playing and starching cap again " kill-job
It bores, it is serious to be easy to cause drilling fluid leakage, and well control risk is high.
A variety of solutions are formd for this problem both at home and abroad at present, for example MI-SWACO companies develop based on friendship
The mud slug of linked polymer is starched again by squeezing into FPTP into well by top and lower part light sizing separates, and FPTP can will
Epimere starches pressure and is transmitted to shaft bottom well again, ensures enough liquid column hydrostatic pressures with this, it is ensured that pull out of hole safety, but the technology
It only uses in Beihai Region oil field, does not promote at home.Domestic TulufanHami oil field, Beijing Petroleum Univ. develop gel valve, but
There are plastics to be difficult to control, and needs pressure break truck pumping, using pouring-in broken glue, thoroughly breaks glue is difficult, maximum operation (service) temperature is low etc.
Problem is unfavorable for site operation.The thinking for proposing stagnation of the circulation of vital energy plug is drilled in the Bohai Sea, has studied a kind of magma of high temperature resistance, but in reality
In use, stagnation of the circulation of vital energy plug is mutually altered with the presence of upper and lower drilling fluid, existing on property of drilling fluid influences on border, and it is pure liquid, it is difficult to have
It is serious that effect obstructs leakage of altering and solve the problems, such as on oil gas to make a trip.
The analysis and summary prior art is appointed and is so had the following problems：（1）Polymer gel initial viscosity is big, poor mobile performance,
It needs to use special equipment, such as cementing truck, pressure break truck pumping；（2）Polymer gel slug maximum operation (service) temperature is 90 DEG C, is resisted
Warm scarce capacity；（3）Gelation time is not easy to control behind polymer gel injection well bottom；（4）Polymer gel uses pouring-in
Broken glue mode, long, the broken glue of gel breaking time are not thorough.
Invention content
The present invention is directed to existing for the above-mentioned prior art defects and deficiency, and the partition of brittleness gel can be bored by providing one kind
Working solution, inventive formulation is simple, extemporaneous preparation is convenient, has a good flowing properties, and gelling time is controllable, Applicable temperature range
Width, simulation downhole temperature pressure condition, which is formed by curing after gel compartment, has that bonding capacity is good, pressure-bearing gas sealingability is strong, quality
It is crisp, can be used brill except mode break glue.
Meanwhile the present invention also provides the preparation methods that can bore brittleness gel partition working solution.
The present invention is realized by using following technical proposals：
One kind can bore brittleness gel partition working solution, it is characterised in that consisting of：Water, suspension stabilizer, gelling agent, activation
Agent, solidification intensifier and retarder, component and proportioning are as follows in parts by weight：Water：Suspension stabilizer：Gelling agent：Activator：Gu
Change reinforcing agent：Retarder=60 ~ 80：0.3~0.5:100~120：2~4:1~2:0.5~1.5.
The suspension stabilizer is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthan
Glue；2）Low viscous carboxymethyl cellulose；3）Low adhesive aggregation anionic cellulose.
The gelling agent is selected from the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Grain
Change ground granulated blast furnace slag.
The activator is selected from the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）
Sodium bicarbonate；3）Waterglass.
The solidification intensifier is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Diformazan
Amido propylamine；2）Diethylenetriamine；3）Tetraethylenepentamine；
The retarder is selected from following one or more kinds of arbitrary proportions and mixes：1）Citric acid；2）Chromate；3）Honey
Amine water-reducing agent.
Be additionally added density adjuster in brittleness gel partition working solution in described bore, the addition of density adjuster according to
It is determined according to working solution density requirements.
The density adjuster is barite.
A kind of preparation method for boring brittleness gel partition working solution, it is characterised in that：Working solution group becomes：Water, suspension
Stabilizer, gelling agent, activator, solidification intensifier and retarder, component and proportioning are as follows in parts by weight：Water：It is suspending stabilized
Agent：Gelling agent：Activator：Solidification intensifier：Retarder=60 ~ 80：0.3~0.5:100~120：2~4:1~2:0.5~1.5；By with
Suspension stabilizer, is first added to the water by square ratio, is sufficiently stirred, and activator is then added and is dissolved in water, gelling is then added
Glue, solidification intensifier, density adjuster stir, and appropriate retarder is added, after mixing i.e. be made gel every
Section working solution, by gel compartment working solution injection pit shaft precalculated position, formed under temperature pressure function can bore brittleness gel every
Section.
Compared with prior art, what the present invention was reached has the beneficial effect that：
1, in the present invention, gel compartment working solution extemporaneous preparation is simple and convenient, initial viscosity is low, does not need cementing truck, fracturing unit truck
Equal special equipments, can be completed preparation and pumping construction using the mating slurry tank of drilling crew, slush pump；
2, in the present invention, after gel compartment working solution prepares, stability is good, and room temperature is after static 7 days, slurry difference of densities
Value, condensate rate are small, and heating successor so has the characteristic that plug can be cured into.
3, in the present invention, temperature is not the limiting factor of gel compartment performance, and gel compartment working solution can be promoted to note instead
It is quickly cured cross-linking reaction after entering pit shaft, the wider higher of Applicable temperature range has reached 80 ~ 150 DEG C；
4, in the present invention, by adjusting the dosage of retarder, it is controllable to realize 0.5 ~ 4h of gel compartment working solution gelling time；
5, in the present invention, gel compartment working solution and conventional drilling liquid system compatibility are good, and there is wider density to adapt to model
Enclose 1.4 ~ 2.1g/cm3, Different Strata pressure coefficient stratum demand is adapted to by the way that density adjuster is added；
6, in the present invention, gel compartment working solution is solidified into after plug that cementing strength is high, pressure-bearing gas sealingability is strong, reaches
2.65Mpa/m slugs are, it can be achieved that safely and effectively insulate pit shaft.
7, in the present invention, the compartment formed after the solidification of gel compartment working solution is crisp, and rock-drillability index value is 1 grade, using brill
Head can be broken by solidification compartment brill, broken cured granulate cycle is then carried out pit shaft by drilling fluid, through vibrosieve
From step operation under realizing rapid break and restoring.
Description of the drawings
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein：
Fig. 1 is present invention boosting thickening curve under the conditions of 120 DEG C of * 70Mpa；
Fig. 2 is that the present invention is solidified into bearing capacity test curve after plug.
Specific implementation mode
Embodiment 1（150 DEG C of temperature resistance）
As best mode for carrying out the invention, water, suspension stabilizer, gelling agent, activator, solidification intensifier, retarder, density
Conditioning agent is prepared by ratio of weight and the number of copies, and component and proportioning are as follows in parts by weight：
Water：Suspension stabilizer：Gelling agent：Activator：Solidification intensifier：Retarder：Density adjuster=60：0.3：120：2：2：
1.5：In right amount.
The suspension stabilizer is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthan
Glue；2）Low viscous carboxymethyl cellulose；3）Low adhesive aggregation anionic cellulose.
The gelling agent is selected from the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Grain
Change ground granulated blast furnace slag.
The activator is selected from the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）
Sodium bicarbonate；3）Waterglass.
The solidification intensifier is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Diformazan
Amido propylamine；2）Diethylenetriamine；3）Tetraethylenepentamine.
The retarder is selected from following one or more kinds of arbitrary proportions and mixes：1）Citric acid；2）Chromate；
3）Melamine water-reducing agent.
The density adjuster is barite.
Gel compartment gelling time 2h, 150 DEG C of temperature resistance ability, pressure-bearing gas sealingability 2.82MPa/m
Embodiment 2（120 DEG C of temperature resistance）
As another better embodiment of the present invention, water, suspension stabilizer, gelling agent, activator, solidification intensifier, slow setting
Agent, density adjuster are prepared by ratio of weight and the number of copies, and component and proportioning are as follows in parts by weight：
Water：Suspension stabilizer：Gelling agent：Activator：Solidification intensifier：Retarder：Density adjuster=70：0.4：110：2：2：
1.0：In right amount.
The suspension stabilizer is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthan
Glue；2）Low viscous carboxymethyl cellulose；3）Low adhesive aggregation anionic cellulose.
The gelling agent is selected from the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Grain
Change ground granulated blast furnace slag.
The activator is selected from the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）
Sodium bicarbonate；3）Waterglass.
The solidification intensifier is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Diformazan
Amido propylamine；2）Diethylenetriamine；3）Tetraethylenepentamine.
The retarder is selected from following one or more kinds of arbitrary proportions and mixes：1）Citric acid；2）Chromate；
3）Melamine water-reducing agent.
The density adjuster is barite.
Gel compartment gelling time 3h, 120 DEG C of temperature resistance ability, pressure-bearing gas sealingability 2.65MPa/m
Embodiment 3（100 DEG C of temperature resistance）
As another better embodiment of the present invention, water, suspension stabilizer, gelling agent, activator, solidification intensifier, slow setting
Agent, density adjuster are prepared by ratio of weight and the number of copies, and component and proportioning are as follows in parts by weight：
Water：Suspension stabilizer：Gelling agent：Activator：Solidification intensifier：Retarder：Density adjuster=80：0.4：110：3：1：
1.0：In right amount.
The suspension stabilizer is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthan
Glue；2）Low viscous carboxymethyl cellulose；3）Low adhesive aggregation anionic cellulose.
The gelling agent is selected from the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Grain
Change ground granulated blast furnace slag.
The activator is selected from the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）
Sodium bicarbonate；3）Waterglass.
The solidification intensifier is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Diformazan
Amido propylamine；2）Diethylenetriamine；3）Tetraethylenepentamine.
The retarder is selected from following one or more kinds of arbitrary proportions and mixes：1）Citric acid；2）Chromate；
3）Melamine water-reducing agent.
The density adjuster is barite.
Gel compartment gelling time 3.5h, 100 DEG C of temperature resistance ability, pressure-bearing gas sealingability 2.20MPa/m.
Embodiment 4（80 DEG C of temperature resistance）
As another better embodiment of the present invention, water, suspension stabilizer, gelling agent, activator, solidification intensifier, slow setting
Agent, density adjuster are prepared by ratio of weight and the number of copies, and component and proportioning are as follows in parts by weight：
Water：Suspension stabilizer：Gelling agent：Activator：Solidification intensifier：Retarder：Density adjuster=80：0.5：100：4：1：
0.5：In right amount.
The suspension stabilizer is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthan
Glue；2）Low viscous carboxymethyl cellulose；3）Low adhesive aggregation anionic cellulose.
The gelling agent is selected from the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Grain
Change ground granulated blast furnace slag.
The activator is selected from the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）
Sodium bicarbonate；3）Waterglass.
The solidification intensifier is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Diformazan
Amido propylamine；2）Diethylenetriamine；3）Tetraethylenepentamine.
The retarder is selected from following one or more kinds of arbitrary proportions and mixes：1）Citric acid；2）Chromate；
3）Melamine water-reducing agent.
The density adjuster is barite.
Gel compartment gelling time 4h, 80 DEG C of temperature resistance ability, pressure-bearing gas sealingability 1.85MPa/m.
Following table is that the present invention is solidified into rock-drillability index value evaluation table after plug.
Claims (9)
1. one kind can bore brittleness gel partition working solution, it is characterised in that consisting of：Water, suspension stabilizer, gelling agent, activation
Agent, solidification intensifier and retarder, component and proportioning are as follows in parts by weight：Water：Suspension stabilizer：Gelling agent：Activator：Gu
Change reinforcing agent：Retarder=60 ~ 80：0.3~0.5:100~120：2~4:1~2:0.5~1.5.
2. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：Described is suspending stabilized
Agent is selected from the suspension stabilizer of following one or more kinds of arbitrary proportion mixing：1）Xanthans；2）Low viscous carboxymethyl cellulose；
3）Low adhesive aggregation anionic cellulose.
3. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：The gelling agent choosing
From the gelling agent of following one or more kinds of arbitrary proportion mixing：1）Steel-making slag powder；2）Ground granulated blast furnace slag.
4. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：The activator choosing
From the activator of following one or more kinds of arbitrary proportion mixing： 1）Calcium hydroxide；2）Sodium bicarbonate；3）Waterglass.
5. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：The solidification enhancing
Agent is selected from the solidification intensifier that following one or two kinds of arbitrary proportions mix：1）Dimethylamine propylamine；2）Diethylenetriamine；
3）Tetraethylenepentamine.
6. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：The retarder choosing
It is mixed from following one or more kinds of arbitrary proportions：1）Citric acid；2）Chromate；3）Melamine water-reducing agent.
7. one kind according to claim 1 can bore brittleness gel partition working solution, it is characterised in that：Brittleness is bored described
Density adjuster is additionally added in gel partition working solution, the addition of density adjuster is determined according to working solution density requirements.
8. the one kind stated according to claim 7 can bore brittleness gel partition working solution, it is characterised in that：The density adjuster
For barite.
9. the preparation method of brittleness gel partition working solution kind can be bored, it is characterised in that：Working solution group becomes：It is water, suspending stabilized
Agent, gelling agent, activator, solidification intensifier and retarder, component and proportioning are as follows in parts by weight：Water：Suspension stabilizer：Glue
Solidifying agent：Activator：Solidification intensifier：Retarder=60 ~ 80：0.3~0.5:100~120：2~4:1~2:0.5~1.5；By recipe ratio
Suspension stabilizer, is first added to the water, is sufficiently stirred by example, and activator is then added and is dissolved in water, and glue gel, solid is then added
Change reinforcing agent, density adjuster stirs, and appropriate retarder is added, and the work of gel compartment is made after mixing
Liquid, by gel compartment working solution injection pit shaft precalculated position, brittleness gel compartment can be bored by being formed under temperature pressure function.
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| CN201810338475.XA CN108410438A (en) | 2018-04-16 | 2018-04-16 | Drillable brittle gel partition working solution and preparation method thereof |
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|---|---|---|---|
| CN201810338475.XA CN108410438A (en) | 2018-04-16 | 2018-04-16 | Drillable brittle gel partition working solution and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605975A (en) * | 2020-12-03 | 2022-06-10 | 中国石油天然气集团有限公司 | Interface enhanced pad fluid for oil field well cementation and preparation method and application thereof |
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|---|---|---|---|---|
| US5333690A (en) * | 1992-12-31 | 1994-08-02 | Shell Oil Company | Cementing with blast furnace slag using spacer |
| US5343947A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Anchor plug for open hole test tools |
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