CN106318363A - Fracturing recovery fluid gel breaker and preparation method thereof - Google Patents
Fracturing recovery fluid gel breaker and preparation method thereof Download PDFInfo
- Publication number
- CN106318363A CN106318363A CN201610706992.9A CN201610706992A CN106318363A CN 106318363 A CN106318363 A CN 106318363A CN 201610706992 A CN201610706992 A CN 201610706992A CN 106318363 A CN106318363 A CN 106318363A
- Authority
- CN
- China
- Prior art keywords
- gel breaker
- temperature
- heating
- constant temperature
- room temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/24—Bacteria or enzyme containing gel breakers
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/26—Gel breakers other than bacteria or enzymes
Abstract
The invention relates to the technical field of treatment on oil field fracturing recovery fluid, and in particular relates to a fracturing recovery fluid gel breaker and a preparation method thereof. The gel breaker is prepared from the following components in parts by weight: 10-15 parts of oxygen chloride chemical gel breaker, 8-12 parts of guanidine gum polysaccharide linkage-specific hydrolase biological gel breaker, 1-3 parts of metal salt initiator with reducing agent, and 90-110 parts of deionized water; the oxygen chloride chemical gel breaker is prepared from chlorine dioxide, sodium hypochlorite and calcium hypochlorite in mass proportion of 1: 1-2: 2-3; the metal salt initiator with the reducing agent is prepared from ferrous chloride, ferrous sulfate and cuprous chloride in mass proportion of 1: 2-3: 1-2. The fracturing recovery fluid gel breaker disclosed by the invention is high in gel breaking speed and high in gel breaking water yield, so that the water, petroleum and suspended matters can be easily separated, the treatment effects of subsequent flocculation, sedimentation and filtering processes of the fracturing recovery fluid are improved. Therefore, the gel breaker can be extensively applied to the technical field of gel breaking treatment of the fracturing recovery fluid.
Description
Technical field
The present invention relates to the processing technology field of fracturing outlet liquid, particularly to a kind of fracturing outlet liquid gel breaker and system thereof
Preparation Method.
Technical background
Pressure break is one of major measure of well production increment, and pressing crack construction process utilizes high-pressure pump group by high viscosity fracturing fluid
Press-in stratum, makes seam and brings proppant in, after pressing crack construction terminates, pressure break breaking glue solution, does not breaks glue fracturing fluid thoroughly and residue
Original gelatin (base fluid) returns to ground from pit shaft.This part returns discharge opeing complicated component, due to containing after breaking gel and the melon that do not breaks glue
Glue/frozen glue, high molecular polymer and petroleum-type, iron ion etc., cause returning discharge opeing viscosity height, emulsifying seriously, have impact on pressure break and return
During the process such as discharge opeing flocculation, sedimentation, the diffusion of medicament, causes response time length, poor processing effect, therefore, and fracturing outlet liquid
Before carrying out subsequent treatment, must first carry out brokenly glue and process.
Gel breaker chief destructive thickening agent molecular chain structure so that it is fall is glutinous, aquation, it is achieved broken glue.Mainly there are heating power, machine
The approach such as tool, chemistry, biology.Conventional is biological and chemical method, and chemical method mainly uses potassium peroxydisulfate, Ammonium Persulfate 98.5 etc. to aoxidize
Agent, during temperature height, peroxide is decomposed into high mars free radical, destroys polymer backbone conformation, reaches brokenly glue purpose.Temperature is more
Height, oxidant reactivity is the strongest, but when temperature is less than 50 DEG C, oxidant breaks glue effect and is decreased obviously.Enzyme gel breaker
Being a kind of environmental type gel breaker, have clear improvement to reducing broken glue residue, but it is slow to there is broken glue speed, broken glue is the most thorough
The end, do not reach the requirement of rapid break.
Summary of the invention
The present invention is directed to existing fracturing outlet liquid and break the problem that glue process exists, it is provided that a kind of fracturing outlet liquid gel breaker and
Its preparation method, in gel breaker, biological enzyme glycosidic bond breaks to form small molecular sugar, and initiator therein is by reducing chain rupture
The activation energy of reaction, while making chemical gel breaker disconnect main chain under cryogenic, also disconnects side chain, reaches thoroughly to break glue
Purpose.Thus improve the follow-up flocculation of fracturing outlet liquid, sedimentation and the treatment effect of filtration treatment technique.
The invention provides a kind of fracturing outlet liquid gel breaker, fracturing outlet liquid gel breaker described by weight is by following
Component forms: oxychlorination thing chemical gel breaker 10～15, guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 8～12, have
The slaine initiator 1～3 of reproducibility, deionized water 90～110.
Preferably, described fracturing outlet liquid gel breaker is the most composed of the following components: oxychlorination thing chemistry breaks glue
Agent 12, guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 10, there is the slaine initiator 2 of reproducibility, deionized water
100。
Wherein, described oxychlorination thing chemical gel breaker is made up of chlorine dioxide, sodium hypochlorite and calcium hypochlorite, mass ratio
Example is 1:1～2:2～3；The described slaine initiator with reproducibility is by ferrous chloride, ferrous sulfate and Cu-lyt. group
Becoming, mass ratio is 1:2～3:1～2.
Above-mentioned oil field compression fracture returns the preparation method of discharge opeing gel breaker, specifically includes following steps:
A oxychlorination thing chemical gel breaker is slowly added in deionized water by (), heat while stirring, and stir speed (S.S.) is 60
～80 revs/min, heating-up temperature is 30～35 DEG C, is warming up to 35～40 DEG C, naturally cools to room after constant temperature 2-3h after constant temperature 2～3h
Temperature, obtains oxychlorination thing solution；
B guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker is added in above-mentioned oxychlorination thing solution by (), while stirring
Heating, stir speed (S.S.) is 80～100 revs/min, and heating-up temperature is 40～45 DEG C, naturally cools to room temperature, room temperature after constant temperature 3～5h
Cooling 8～10h after, heat while stirring, stir speed (S.S.) is 150～200 revs/min, and heating-up temperature is 50～60 DEG C, constant temperature 3～
Naturally cool to room temperature after 5h, obtain mixed solution；
C the slaine initiator with reproducibility is added in above-mentioned mixed solution by (), heat while stirring, stir speed (S.S.)
Being 200～300 revs/min, heating-up temperature is 50～60 DEG C, is cooled to 30～40 DEG C after constant temperature 2～4h, and constant temperature 3～5h is the coldest
But to room temperature, product is obtained.
` preferably, the preparation method of described fracturing outlet liquid gel breaker, specifically include following steps:
A oxychlorination thing chemical gel breaker is slowly added in deionized water by (), heat while stirring, and stir speed (S.S.) is 70
Rev/min, heating-up temperature is 32 DEG C, is warming up to 38 DEG C, naturally cools to room temperature, obtain oxychlorination after constant temperature 2.5h after constant temperature 2.5h
Thing solution；
B guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker is added in above-mentioned oxychlorination thing solution by (), while stirring
Heating, stir speed (S.S.) is 90 revs/min, and heating-up temperature is 42 DEG C, naturally cools to room temperature after constant temperature 4h, after room temperature cooling 9h, limit
The heating of stirring limit, stir speed (S.S.) is 180 revs/min, and heating-up temperature is 55 DEG C, naturally cools to room temperature, mixed after constant temperature 4h
Solution；
C the slaine initiator with reproducibility is added in above-mentioned mixed solution by (), heat while stirring, stir speed (S.S.)
Being 250 revs/min, heating-up temperature is 55 DEG C, is cooled to 35 DEG C after constant temperature 3h, and constant temperature 4h naturally cools to room temperature, obtains product.
The present invention has the advantage that and beneficial effect compared with prior art:
(1) to break glue speed under cryogenic fast for gel breaker, can make in 30min fracturing outlet liquid viscosity reduce by 90% with
On.
(2) gel breaker uses chemical gel breaker to compound mutually with biological gel breaker, can make the one-tenth xanthan molecule in fracturing outlet liquid
Main chain and side chain all rupture, it is achieved thoroughly break glue.
(3) broken glue water rate is high, makes water, petroleum-type, float etc. be easily isolated, the raising follow-up flocculation of fracturing outlet liquid,
The treatment effect of the techniques such as sedimentation, filtration.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is further described:
Embodiment 1
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 1.5, sodium hypochlorite 4.5 and calcium hypochlorite 4；
(2) guanidine glue glycoside bond specific hydrolase enzyme 8
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.2, ferrous sulfate 0.4 and Cu-lyt. 0.4
(4) deionized water 90
Preparation method:
(1) chlorine dioxide 1.5kg, sodium hypochlorite 4.5kg and calcium hypochlorite 4kg are slowly added into deionized water 90kg
In, heating while stirring, stir speed (S.S.) is 60 revs/min, and heating-up temperature is 30 DEG C, is warming up to 35 DEG C, after constant temperature 2h after constant temperature 2h
Naturally cool to room temperature, obtain oxychlorination thing solution；
(2) adding in above-mentioned oxychlorination thing solution by guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 8kg, limit is stirred
Limit is heated, and stir speed (S.S.) is 80 revs/min, and heating-up temperature is 40 DEG C, naturally cools to room temperature after constant temperature 3h, after room temperature cooling 8h,
Heating while stirring, stir speed (S.S.) is 150 revs/min, and heating-up temperature is 50 DEG C, naturally cools to room temperature, mixed after constant temperature 3h
Close solution；
(3) ferrous chloride 0.2kg, ferrous sulfate 0.4kg and Cu-lyt. 0.4kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 200 revs/min, and heating-up temperature is 50 DEG C, is cooled to 30 DEG C after constant temperature 2h, and constant temperature 3h is the coldest
But to room temperature, products C is obtained1。
Embodiment 2
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 2, sodium hypochlorite 4 and calcium hypochlorite 5；
(2) guanidine glue glycoside bond specific hydrolase enzyme 9
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.3, ferrous sulfate 0.7 and Cu-lyt. 0.5
(4) deionized water 95
Preparation method:
(1) chlorine dioxide 2kg, sodium hypochlorite 4kg and calcium hypochlorite 5kg are slowly added in deionized water 95kg, limit
The heating of stirring limit, stir speed (S.S.) is 65 revs/min, and heating-up temperature is 31 DEG C, naturally cools to room temperature after constant temperature 2.2h, obtains oxygen chlorine
Compound solution；
(2) adding in above-mentioned oxychlorination thing solution by guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 9kg, limit is stirred
Limit is heated, and stir speed (S.S.) is 85 revs/min, and heating-up temperature is 41 DEG C, naturally cools to room temperature, room temperature cooling 8.5h after constant temperature 3.5h
After, heating while stirring, stir speed (S.S.) is 160 revs/min, and heating-up temperature is 52 DEG C, naturally cools to room temperature after constant temperature 3.5h,
To mixed solution；
(3) ferrous chloride 0.3kg, ferrous sulfate 0.7kg and Cu-lyt. 0.5kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 220 revs/min, and heating-up temperature is 53 DEG C, is cooled to 33 DEG C after constant temperature 2.5h, and constant temperature 3.5h is certainly
So it is cooled to room temperature, obtains products C2。
Embodiment 3
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 2, sodium hypochlorite 5 and calcium hypochlorite 5；
(2) guanidine glue glycoside bond specific hydrolase enzyme 10
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.4, ferrous sulfate 1.2 and Cu-lyt. 0.4
(4) deionized water 100
Preparation method:
(1) chlorine dioxide 2kg, sodium hypochlorite 5kg and calcium hypochlorite 5kg are slowly added in deionized water 100kg, limit
The heating of stirring limit, stir speed (S.S.) is 70 revs/min, and heating-up temperature is 32 DEG C, is warming up to 38 DEG C after constant temperature 2.5h, after constant temperature 2.5h certainly
So it is cooled to room temperature, obtains oxychlorination thing solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 10kg is added in above-mentioned oxychlorination thing solution, while stir
Mixing limit heating, stir speed (S.S.) is 90 revs/min, and heating-up temperature is 42 DEG C, naturally cools to room temperature, room temperature cooling 9h after constant temperature 4h
After, heating while stirring, stir speed (S.S.) is 180 revs/min, and heating-up temperature is 55 DEG C, naturally cools to room temperature, obtain after constant temperature 4h
Mixed solution；
(3) ferrous chloride 0.4kg, ferrous sulfate 1.2kg and Cu-lyt. 0.4kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 250 revs/min, and heating-up temperature is 55 DEG C, is cooled to 35 DEG C after constant temperature 3h, and constant temperature 4h is the coldest
But to room temperature, products C is obtained3。
Embodiment 4
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 2.0, sodium hypochlorite 5.5 and calcium hypochlorite 5.5；
(2) guanidine glue glycoside bond specific hydrolase enzyme 10.5
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.5, ferrous sulfate 1.0 and Cu-lyt. 1.0
(4) deionized water 102
Preparation method:
(1) chlorine dioxide 2.0kg, sodium hypochlorite 5.5kg and calcium hypochlorite 5.5kg are slowly added into deionized water
In 102kg, heating while stirring, stir speed (S.S.) is 75 revs/min, and heating-up temperature is 33 DEG C, is warming up to 39 DEG C after constant temperature 2.6h, permanent
Naturally cool to room temperature after temperature 2.7h, obtain oxychlorination thing solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 10.5kg is added in above-mentioned oxychlorination thing solution, limit
The heating of stirring limit, stir speed (S.S.) is 95 revs/min, and heating-up temperature is 43 DEG C, naturally cools to room temperature after constant temperature 4.2h, and room temperature cools down
After 9.3h, heating while stirring, stir speed (S.S.) is 185 revs/min, and heating-up temperature is 56 DEG C, naturally cools to room after constant temperature 4.5h
Temperature, obtains mixed solution；
(3) ferrous chloride 0.5kg, ferrous sulfate 1.0kg and Cu-lyt. 1.0kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 260 revs/min, and heating-up temperature is 56 DEG C, is cooled to 37 DEG C after constant temperature 3.4h, and constant temperature 4.2h is certainly
So it is cooled to room temperature, obtains products C4。
Embodiment 5
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 2.5, sodium hypochlorite 5.0 and calcium hypochlorite 6.5；
(2) guanidine glue glycoside bond specific hydrolase enzyme 11
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.5, ferrous sulfate 1.3 and Cu-lyt. 1.0
(4) deionized water 105
Preparation method:
(1) chlorine dioxide 2.5kg, sodium hypochlorite 5.0kg and calcium hypochlorite 6.5kg are slowly added into deionized water
In 105kg, heating while stirring, stir speed (S.S.) is 78 revs/min, and heating-up temperature is 34 DEG C, is warming up to 39 DEG C after constant temperature 2.8h, permanent
Naturally cool to room temperature after temperature 2.8h, obtain oxychlorination thing solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 11kg is added in above-mentioned oxychlorination thing solution, while stir
Mixing limit heating, stir speed (S.S.) is 98 revs/min, and heating-up temperature is 44 DEG C, naturally cools to room temperature after constant temperature 4.8h, and room temperature cools down
After 9.6h, heating while stirring, stir speed (S.S.) is 190 revs/min, and heating-up temperature is 58 DEG C, naturally cools to room after constant temperature 4.8h
Temperature, obtains mixed solution；
(3) ferrous chloride 0.5kg, ferrous sulfate 1.3kg and Cu-lyt. 1.0kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 290 revs/min, and heating-up temperature is 58 DEG C, is cooled to 39 DEG C after constant temperature 3.6h, and constant temperature 4.6h is certainly
So it is cooled to room temperature, obtains products C5。
Embodiment 6
Precise raw material (kg):
(1) oxychlorination thing chemical gel breaker
Chlorine dioxide 2.5, sodium hypochlorite 5.5 and calcium hypochlorite 7.0；
(2) guanidine glue glycoside bond specific hydrolase enzyme 12
(3) there is the slaine initiator of reproducibility
Ferrous chloride 0.5, ferrous sulfate 1.5 and Cu-lyt. 1.0
(4) deionized water 110
Preparation method:
(1) chlorine dioxide 2.5kg, sodium hypochlorite 5.5kg and calcium hypochlorite 8kg are slowly added into deionized water 110kg
In, heating while stirring, stir speed (S.S.) is 80 revs/min, and heating-up temperature is 35 DEG C, is warming up to 40 DEG C, after constant temperature 3h after constant temperature 3h
Naturally cool to room temperature, obtain oxychlorination thing solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 12kg is added in above-mentioned oxychlorination thing solution, while stir
Mixing limit heating, stir speed (S.S.) is 100 revs/min, and heating-up temperature is 45 DEG C, naturally cools to room temperature, room temperature cooling 10h after constant temperature 5h
After, heating while stirring, stir speed (S.S.) is 200 revs/min, and heating-up temperature is 60 DEG C, naturally cools to room temperature, obtain after constant temperature 5h
Mixed solution；
(3) ferrous chloride 0.5kg, ferrous sulfate 1.5kg and Cu-lyt. 1.0kg are added in above-mentioned mixed solution, limit
The heating of stirring limit, stir speed (S.S.) is 300 revs/min, and heating-up temperature is 60 DEG C, is cooled to 40 DEG C after constant temperature 4h, and constant temperature 5h is the coldest
But to room temperature, products C is obtained6。
Embodiment 7
Certain oilfield K38Fracturing outlet liquid, this returns discharge opeing initial viscosity 61.5mPa.s.Take this fracturing outlet liquid to add respectively
Entering above-mentioned prepared gel breaker, the weight of gel breaker shared part by weight in fracturing outlet liquid is 5.0%, tests it 30
DEG C, 35 DEG C, broken colloidality energy under the conditions of 40 DEG C.Found out by the experimental result of table 1～3, along with temperature rising, broken glue time prolong
Long, fracturing outlet liquid viscosity reduces, and broken glue effect is more preferable.Under the conditions of 40 DEG C, during broken glue time 30min, fracturing outlet liquid glues
Degree is down to below 1.2mPa.s, and viscosity break ratio, more than 98.0%, fully meets follow-up solidifying, filtration treatment requirement, it is possible to achieve pressure break
Return effective process of discharge opeing.At 1 30 DEG C of table, gel breaker breaks glue performance test
At 2 35 DEG C of table, gel breaker breaks glue performance test
At 3 40 DEG C of table, gel breaker breaks glue performance test
Embodiment 8
Certain oilfield T21Fracturing outlet liquid, this returns discharge opeing initial viscosity 57.2mPa.s.Take this fracturing outlet liquid to add respectively
Entering above-mentioned prepared gel breaker, the weight of gel breaker shared part by weight in fracturing outlet liquid is 5.0%, tests it 30
DEG C, 35 DEG C, broken colloidality energy under the conditions of 40 DEG C.Found out by the experimental result of table 4-6, along with temperature raises, breaks glue time lengthening,
Fracturing outlet liquid viscosity reduces, and broken glue effect is more preferable.Under the conditions of 40 DEG C, during broken glue time 30min, fracturing outlet liquid viscosity drop
To below 1.1mPa.s, viscosity break ratio, more than 98.0%, fully meets follow-up solidifying, filtration treatment requirement, it is possible to achieve pressure break returns row
Effective process of liquid.
At 4 30 DEG C of table, gel breaker breaks glue performance test
At 5 35 DEG C of table, gel breaker breaks glue performance test
At 6 40 DEG C of table, gel breaker breaks glue performance test
Claims (5)
1. a fracturing outlet liquid gel breaker, it is characterised in that described fracturing outlet liquid gel breaker is by weight by following group
It is grouped into: oxychlorination thing chemical gel breaker 10～15, guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 8～12, have also
The slaine initiator 1～3 of originality, deionized water 90～110；
The preparation method of described fracturing outlet liquid gel breaker, specifically includes following steps:
(1) being slowly added in deionized water by oxychlorination thing chemical gel breaker, heat while stirring, stir speed (S.S.) is 60～80
Rev/min, heating-up temperature is 30～35 DEG C, is warming up to 35～40 DEG C, naturally cools to room temperature after constant temperature 2-3h after constant temperature 2～3h,
Obtain oxychlorination thing solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker is added in above-mentioned oxychlorination thing solution, heats while stirring,
Stir speed (S.S.) is 80～100 revs/min, and heating-up temperature is 40～45 DEG C, naturally cools to room temperature, room temperature cooling 8 after constant temperature 3～5h
～after 10h, heat while stirring, stir speed (S.S.) is 150～200 revs/min, and heating-up temperature is 50～60 DEG C, after constant temperature 3～5h certainly
So it is cooled to room temperature, obtains mixed solution；
(3) being added in above-mentioned mixed solution by the slaine initiator with reproducibility, heat while stirring, stir speed (S.S.) is
200～300 revs/min, heating-up temperature is 50～60 DEG C, is cooled to 30～40 DEG C after constant temperature 2～4h, constant temperature 3～5h natural cooling
To room temperature, obtain product.
Fracturing outlet liquid gel breaker the most according to claim 1, it is characterised in that described gel breaker by weight by with
Lower component forms: oxychlorination thing chemical gel breaker 12, guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker 10, have reproducibility
Slaine initiator 2, deionized water 100.
Fracturing outlet liquid gel breaker the most according to claim 1 and 2, it is characterised in that described oxychlorination thing chemistry breaks
Colloid is made up of chlorine dioxide, sodium hypochlorite and calcium hypochlorite, and mass ratio is 1:1～2:2～3.
Fracturing outlet liquid gel breaker the most according to claim 3, it is characterised in that the described slaine with reproducibility
Initiator is made up of ferrous chloride, ferrous sulfate and Cu-lyt., and mass ratio is 1:2～3:1～2.
Fracturing outlet liquid gel breaker the most according to claim 1, it is characterised in that the preparation method of described gel breaker,
Specifically include following steps:
(1) oxychlorination thing chemical gel breaker being slowly added in deionized water, heat while stirring, stir speed (S.S.) is 70 turns/
Point, heating-up temperature is 32 DEG C, is warming up to 38 DEG C, naturally cools to room temperature after constant temperature 2.5h, obtain oxychlorination thing after constant temperature 2.5h
Solution；
(2) guanidine glue glycoside bond specific hydrolase enzyme biology gel breaker is added in above-mentioned oxychlorination thing solution, heats while stirring,
Stir speed (S.S.) is 90 revs/min, and heating-up temperature is 42 DEG C, naturally cools to room temperature, after room temperature cooling 9h, while stirring after constant temperature 4h
Heating, stir speed (S.S.) is 180 revs/min, and heating-up temperature is 55 DEG C, naturally cools to room temperature, obtain mixed solution after constant temperature 4h；
(3) being added in above-mentioned mixed solution by the slaine initiator with reproducibility, heat while stirring, stir speed (S.S.) is
250 revs/min, heating-up temperature is 55 DEG C, is cooled to 35 DEG C after constant temperature 3h, and constant temperature 4h naturally cools to room temperature, obtains product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706992.9A CN106318363A (en) | 2016-08-23 | 2016-08-23 | Fracturing recovery fluid gel breaker and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706992.9A CN106318363A (en) | 2016-08-23 | 2016-08-23 | Fracturing recovery fluid gel breaker and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106318363A true CN106318363A (en) | 2017-01-11 |
Family
ID=57742011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610706992.9A Pending CN106318363A (en) | 2016-08-23 | 2016-08-23 | Fracturing recovery fluid gel breaker and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106318363A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338041A (en) * | 2017-08-31 | 2017-11-10 | 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 recyclable fracturing fluid gel breaker of Oil/gas Well and application method |
| CN111394087A (en) * | 2020-04-27 | 2020-07-10 | 山东滨州昱诚化工科技有限公司 | Preparation method of non-oxidative gel breaker for fracturing |
| CN115746821A (en) * | 2022-11-30 | 2023-03-07 | 德蓝(海南)未来之水有限公司 | Fracturing flowback fluid gel breaker and preparation method thereof |
| CN116970382A (en) * | 2023-09-22 | 2023-10-31 | 东营市宝泽能源科技有限公司 | Gel breaker for oilfield fracturing and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161536A (en) * | 2010-07-27 | 2011-08-24 | 王兵 | Advanced treatment method for fracturing flow-back fluid |
| CN102286275A (en) * | 2011-07-12 | 2011-12-21 | 西安石油大学 | Biological enzyme pressing crack gum breaker and application thereof |
| CN105565449A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Pretreatment method of flown back fracturing fluid |
-
2016
- 2016-08-23 CN CN201610706992.9A patent/CN106318363A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161536A (en) * | 2010-07-27 | 2011-08-24 | 王兵 | Advanced treatment method for fracturing flow-back fluid |
| CN102286275A (en) * | 2011-07-12 | 2011-12-21 | 西安石油大学 | Biological enzyme pressing crack gum breaker and application thereof |
| CN105565449A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Pretreatment method of flown back fracturing fluid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338041A (en) * | 2017-08-31 | 2017-11-10 | 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 recyclable fracturing fluid gel breaker of Oil/gas Well and application method |
| CN111394087A (en) * | 2020-04-27 | 2020-07-10 | 山东滨州昱诚化工科技有限公司 | Preparation method of non-oxidative gel breaker for fracturing |
| CN115746821A (en) * | 2022-11-30 | 2023-03-07 | 德蓝(海南)未来之水有限公司 | Fracturing flowback fluid gel breaker and preparation method thereof |
| CN116970382A (en) * | 2023-09-22 | 2023-10-31 | 东营市宝泽能源科技有限公司 | Gel breaker for oilfield fracturing and preparation method thereof |
| CN116970382B (en) * | 2023-09-22 | 2024-02-09 | 东营市宝泽能源科技有限公司 | Gel breaker for oilfield fracturing and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106318363A (en) | Fracturing recovery fluid gel breaker and preparation method thereof | |
| CN102757778B (en) | Fracturing fluid capable of resisting high salinity water quality | |
| EP0824632B1 (en) | Carboxyalkyl substituted polygalactomannan fracturing fluids | |
| CN104531129A (en) | Clean carbon dioxide foam fracturing fluid and preparation method thereof | |
| CN101633839B (en) | 200-DEG C super-high temperature fracturing fluid | |
| US20140158355A1 (en) | Crosslinked synthetic polymer gel systems for hydraulic fracturing | |
| CN101412906A (en) | Acid fracturing thickening agent and preparation thereof | |
| CN104710973A (en) | Non-residue polymer fracturing fluid | |
| CN109762549B (en) | Efficient self-gas-production foam fracturing fluid and construction method | |
| CN104449649A (en) | High-concentration water-in-oil emulsion-state associating polymer fracturing fluid and preparation method thereof | |
| US6706769B2 (en) | Aminocarboxylic acid breaker compositions for fracturing fluids | |
| CN103819609A (en) | Low-friction-resistance high-temperature-resistant gelled acid and preparation method thereof | |
| CN104910890A (en) | Organoboron-hydroxypropyl guanidine gum system crosslinking promoter, and preparation method thereof | |
| CN106318364A (en) | Compound gel breaker and preparing method thereof | |
| CN111394087A (en) | Preparation method of non-oxidative gel breaker for fracturing | |
| CN106753311B (en) | Instant high-viscosity resistance reducing agent and preparation method and application thereof | |
| CN106350054A (en) | Oil field fracturing fluid flow back liquid composite gel breaker and preparation method thereof | |
| EP3882284B1 (en) | Acrylamide copolymer and preparation method therefor and use thereof | |
| CN103183779A (en) | Preparation method for multi-element polymerized gel | |
| CN114806536A (en) | Fluid for enhancing gel breaking and flowback of low-temperature oil reservoir polymer fracturing fluid and preparation method thereof | |
| CN116970382B (en) | Gel breaker for oilfield fracturing and preparation method thereof | |
| CN108048067B (en) | Preparation method of biogel for fracturing | |
| CN104877658B (en) | A kind of fracturing fluid prepared using highly mineralized formation brines and preparation method thereof | |
| CN115304708B (en) | Multi-branch fracturing fluid thickening agent and preparation method thereof | |
| US20230058884A1 (en) | Degradable friction reducer for hydraulic fracturing treatments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |