CN104974723B - A kind of reinforcing oil well exacerbation insulating liquid and preparation method thereof - Google Patents
A kind of reinforcing oil well exacerbation insulating liquid and preparation method thereof Download PDFInfo
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- CN104974723B CN104974723B CN201510339049.4A CN201510339049A CN104974723B CN 104974723 B CN104974723 B CN 104974723B CN 201510339049 A CN201510339049 A CN 201510339049A CN 104974723 B CN104974723 B CN 104974723B
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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
- C09K8/40—Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
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Abstract
The present invention relates to a kind of reinforcing oil well with insulating liquid is aggravated, in turn include the following steps, (1) prepare raw material, clear water by following components and weight content：100 parts；HS GYW301 interleaving agents：（0.90~0.1）Part；HS GYW201 interleaving agents：（3.0~3.8）Part；HS ZNJ tackifier：（0.2~0.3）Part；HS GHJ activator：（5~10）Part；HS ZQJ early strength agent：（10~15）Part；Barite（85~100）Part；(2) HS GYW301 interleaving agents and HS GYW201 interleaving agents are first put into clear water, and is stirred；(3) HS ZNJ tackifier are put into above-mentioned mixed liquor again, and are stirred；(4) HS GHJ activator and HS ZQJ early strength agent are then put into, and is stirred；(5) finally put into barite and be uniformly mixing to obtain insulating liquid.The insulating liquid of the present invention has excellent contamination resistance, has good chemical compatibility with a variety of drilling fluid systems and mortar architecture；Interface agglutination environment can be improved, improve interlayer seal quality；Separating liquid system itself has intensity, in section existing for slurry section or insulating liquid, can fill bore hole annulus.
Description
Technical field
The present invention relates to a kind of reinforcing oil well with insulating liquid is aggravated, isolated the invention further relates to a kind of reinforcing oil well with exacerbation
The preparation method of liquid, belong to reinforcing oil well technical field.
Background technology
The safety for injuring cementing operation and influence cementing quality are polluted because drilling fluid and cement mortar contact with each other, solid
It is very smooth usually to occur cement injection operation in well, but electrical measurement cementing quality is bad after well cementation or annular space mixes liquid, gaseous state etc.
The result of non-cementing material, it is displayed without forming complete cement sheath, interface agglutination is of poor quality, is not carried out good interlayer envelope
Every purpose.Analyzing its reason mainly includes：First, the rheological property of drilling fluid is poor before well cementation, the mud formed in drilling process
Cake performance and of poor quality, the borehole wall is attached with the drilling fluid of gelling, has had a strong impact on cementing quality.Second, drilling fluid and cement mortar
Contact with each other pollution, has a strong impact on the rheological property of drilling fluid and cement mortar, causes displacement efficiency to reduce, influences cementing quality
Improve.Drilling fluid viscosity and shear force after contaminated steeply rise, and particularly yield value significantly rises, and cause to be pumped in well cementation
Increase, pressure leakage stratum or sausage-filling accident occur, cause well cementation to fail.Special insulating liquid is needed to separate cement mortar and drilling well
Liquid, improve the rheological characteristic of borehole fluid, improve displacement efficiency, improve interface agglutination quality.
Effect of the insulating liquid in well cementation includes：1. the physics of the attachment of pair borehole wall and casing wall washes away and chemical flush
Effect, makes the greasy dirt, oil film and false filter cake of wall be removed under waterpower and chemical action.2. diluting drilling fluid, improve drilling fluid
Rheological property, make drilling fluid be more easy to be replaced it is clean.3. being effectively isolated drilling fluid and cement mortar, both are prevented to be in contact dirt
Dye, ensure construction safety.4. the interface cementing strength of pair raising cement sheath, so as to improve the sealing property of cement sheath, extends oil
The life-span of gas well has important value.
Domestic each elephant has all carried out the separating liquid system research and application for meeting own situation, and species is also relatively more,
Insulating liquid material of main part is mostly the compound of all kinds of suspending agent and surfactant, because no unified standard is to insulating liquid
Specification is carried out, therefore the function of insulating liquid and performance differ greatly.
Performance does not reach requirement after currently used separating liquid system aggravates, and the suspension stability of separating liquid system is to pass through
The viscosity of increase system is improved, and the rheological characteristic of system can be caused to be deteriorated after viscosity increase.Such as suspending agent system is used as by the use of CMC
The exacerbation separating liquid system obtained, its static suspension stability is very poor, obvious lamination be present, while pollution problem be present.
The content of the invention
The primary and foremost purpose of the present invention is, overcomes problems of the prior art, there is provided a kind of reinforcing oil well aggravates
Insulating liquid, sedimentation stability is good, and rheological characteristic is good, can realize being effectively isolated for drilling fluid and cement mortar in cementing operation.
To solve above technical problem, a kind of reinforcing oil well of the invention exacerbation insulating liquid, the raw material of the insulating liquid
Component and weight content are as follows, clear water：100 parts；HS-GYW301 interleaving agents：（0.90~0.1）Part；HS-GYW201 interleaving agents：
（3.0~3.8）Part；HS-ZNJ tackifier：（0.2~0.3）Part；HS-GHJ activator：（5~10）Part；HS-ZQJ early strength agent：（10~
15）Part；Barite（85~100）Part.
Relative to prior art, the present invention achieves following beneficial effect：HS-GYW301 interleaving agents can solidify, have itself
Higher intensity, there is good compatibility with cement mortar and drilling fluid, there is stronger activation to remaining drilling fluid, rush
Well-flushing eye, the borehole wall is consolidated, be applicable maximum temperature up to 170 DEG C, control insulating liquid slurry dehydration；HS-GYW201 interleaving agents can be with
Flushing borehole, the borehole wall is consolidated, hang mud band sand, remove virtual mud cake, reservoir protec-tion, avoid bringing secondary pollution, itself have by force
Degree, can adjust the slurry thickening time, can activate cement mortar and play intensity, can block up minute crack, Applicable temperature scope phase is used alone
To relatively low, no more than 110 DEG C, and HS-GYW301 interleaving agents can greatly promote Applicable temperature scope in the ratio compounding of the present invention
Reach 180 DEG C；HS-ZNJ tackifier with HS-GYW301 interleaving agents, HS-GYW201 interleaving agents by occurring complicated physical chemistry
Reaction viscosifies slurry, maintains slurry homogeneously not stratified, can preferably ensure flush efficiency while strengthening slurry stability；
HS-GHJ activator after separating liquid system enters well, can HS-GYW301 interleaving agents effectively in activation systems, HS-GYW201 every
Fast reaction is carried out from agent and HS-ZNJ tackifier；HS-ZQJ early strength agent excites drilling well when separating liquid system remains in the borehole wall
Liquid, insulating liquid itself, the intensity of cement mortar, improve the cementing strength and interface readability of Behavior of Hardened Cement Paste in well cementing process；Weight is brilliant
Stone can adjust insulating liquid density, ensure the proportion of insulating liquid between drilling fluid and cement mortar, be easy to well control and effectively divide
Every；HS-GYW301 interleaving agents, HS-GYW201 interleaving agents, HS-ZNJ tackifier three, which arrange in pairs or groups, causes the temperature of the separating liquid system
The scope of application is wider, while can preferably clean well, reservoir protec-tion, ensure displacement efficiency.HS-GYW301 interleaving agent dosages
Reduction system Applicable temperature scope will be caused drastically to shorten, dosage too conference cause base slurry be difficult to aquation；HS-GYW201 isolates
Agent dosage is small to directly affect remaining separating liquid system intensity, and cement mortar and the strength of cement grout of separating liquid system slurry part
Activation effect, it is solidifying that dosage too conference promotes cement mortar to promote, and easily causes security incident, while can also reduce the applicable for temperature of the system
Degree；The appropriate addition of HS-ZNJ tackifier can improve the stability of slurry, ensure the scouring capability of slurry and be effectively isolated brill
Well liquid and cement mortar, but easy card agitator, cementing truck in the excessive process for preparation of addition, pump is not easy in work progress
Send, or even blocking can be caused in bore hole annulus, pump or security incident are suppressed when serious；HS-GHJ activator, HS-ZQJ
The addition of early strength agent make it that the internal-response of separating liquid system is rapider, more thorough, while the intensity of guarantee system；The present invention matches somebody with somebody
Than reinforcing oil well with aggravate insulating liquid sedimentation stability it is good, do not settle within static 48 hours after preparation；Rheological characteristic is good, flowing
Between 18 ~ 24cm, the liquidity index n of insulating liquid is maintained at more than 0.6 degree in the range of 0.6 ~ 0.8；Consistency coefficient at 90 DEG C
The PaSn of K ＞ 1, when temperature is increased to more than 110 DEG C, it is reduced to the PaSn of K≤1；Plastic viscosity η P are in 85 ~ 90mPa.s scopes
It is interior, much smaller than 180mPa.s；Yield value is 25 ~ 30Pa, ratio of dynamic shear force/yield value to plastic viscosity≤500, is satisfied by the requirement for isolating fluid rheology；The present invention
Insulating liquid there is excellent contamination resistance, have with a variety of drilling fluid systems and mortar architecture good chemically compatible
Property；Under the premise of ensureing that pressure is steady, drilling fluid is at utmost diluted, viscosity reduction is cut and thixotropy, be effectively increased fluid boundary shear stress,
Improve displacement efficiency；Be gelled drilling fluid or the effective scraping carrying of false filter cake to second interface, improves interface agglutination environment, improves cement
Ring and the bonding quality at borehole wall interface, improve interlayer seal quality；Separating liquid system itself has intensity, slurry section or every
Section existing for chaotropic, bore hole annulus can be filled.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.90 part；HS-GYW201 interleaving agents：3.0 part；HS-ZNJ tackifier：0.2 part；HS-GHJ activator：
5 parts；HS-ZQJ early strength agent：10 parts；85 parts of barite.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.95 part；HS-GYW201 interleaving agents：3.4 part；HS-ZNJ tackifier：0.25 part；HS-GHJ is activated
Agent：8 parts；HS-ZQJ early strength agent：12 parts；92 parts of barite.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.1 part；HS-GYW201 interleaving agents：3.8 part；HS-ZNJ tackifier：0.3 part；HS-GHJ activator：
10 parts；HS-ZQJ early strength agent：15 parts；100 parts of barite.
It is a further object of the invention to provide a kind of reinforcing oil well with aggravate insulating liquid preparation method, prepare and
Into insulating liquid sedimentation stability it is good, rheological characteristic is good, can realize being effectively isolated for drilling fluid and cement mortar in cementing operation.
To solve above technical problem, a kind of reinforcing oil well of the invention preparation method for aggravating insulating liquid, wrap successively
Following steps are included, (1) prepare raw material, clear water by following components and weight content：100 parts；HS-GYW301 interleaving agents：（0.90~
0.1）Part；HS-GYW201 interleaving agents：（3.0~3.8）Part；HS-ZNJ tackifier：（0.2~0.3）Part；HS-GHJ activator：（5~
10）Part；HS-ZQJ early strength agent：（10~15）Part；Barite（85~100）Part；(2) HS-GYW301 interleaving agents are first put into clear water
With HS-GYW201 interleaving agents, and stir；(3) HS-ZNJ tackifier are put into above-mentioned mixed liquor again, and are stirred；⑷
Then HS-GHJ activator and HS-ZQJ early strength agent are put into, and is stirred；(5) finally put into barite and be uniformly mixing to obtain
Insulating liquid.
Relative to prior art, the beneficial effect that the present invention obtains first adds interleaving agent into clear water in addition to as previously described,
Then tackifier are put into, then put into activator and early strength agent, competing close can be prevented and reacted, guarantee system is uniform, finally
Barite is added, can accurately adjust the density of insulating liquid.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.90 part；HS-GYW201 interleaving agents：3.0 part；HS-ZNJ tackifier：0.2 part；HS-GHJ activator：
5 parts；HS-ZQJ early strength agent：10 parts；85 parts of barite.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.95 part；HS-GYW201 interleaving agents：3.4 part；HS-ZNJ tackifier：0.25 part；HS-GHJ is activated
Agent：8 parts；HS-ZQJ early strength agent：12 parts；92 parts of barite.
As the preferred scheme of the present invention, the raw material components and weight content of the insulating liquid are as follows, clear water：100 parts；
HS-GYW301 interleaving agents：0.1 part；HS-GYW201 interleaving agents：3.8 part；HS-ZNJ tackifier：0.3 part；HS-GHJ activator：
10 parts；HS-ZQJ early strength agent：15 parts；100 parts of barite.
Embodiment
The clear water of embodiment one：100 parts；HS-GYW301 interleaving agents：0.90 part；HS-GYW201 interleaving agents：3.0 part；HS-
ZNJ tackifier：0.2 part；HS-GHJ activator：5 parts；HS-ZQJ early strength agent：10 parts；85 parts of barite；(2) first thrown into clear water
Enter HS-GYW301 interleaving agents and HS-GYW201 interleaving agents, and stir；(3) HS-ZNJ is put into above-mentioned mixed liquor again to increase
Stick, and stir；(4) HS-GHJ activator and HS-ZQJ early strength agent are then put into, and is stirred；(5) last input weight
Spar is simultaneously uniformly mixing to obtain insulating liquid.
Embodiment two
The reinforcing oil well of the present invention preparation method for aggravating insulating liquid, in turn includes the following steps, (1) by following components and
Weight content prepares raw material, clear water：100 parts；HS-GYW301 interleaving agents：0.95 part；HS-GYW201 interleaving agents：3.4 part；HS-
ZNJ tackifier：0.25 part；HS-GHJ activator：8 parts；HS-ZQJ early strength agent：12 parts；92 parts of barite；(2) first thrown into clear water
Enter HS-GYW301 interleaving agents and HS-GYW201 interleaving agents, and stir；(3) HS-ZNJ is put into above-mentioned mixed liquor again to increase
Stick, and stir；(4) HS-GHJ activator and HS-ZQJ early strength agent are then put into, and is stirred；(5) last input weight
Spar is simultaneously uniformly mixing to obtain insulating liquid.
Embodiment three
The reinforcing oil well of the present invention preparation method for aggravating insulating liquid, in turn includes the following steps, (1) by following components and
Weight content prepares raw material, clear water：100 parts；HS-GYW301 interleaving agents：0.1 part；HS-GYW201 interleaving agents：3.8 part；HS-
ZNJ tackifier：0.3 part；HS-GHJ activator：10 parts；HS-ZQJ early strength agent：15 parts；100 parts of barite；(2) first into clear water
HS-GYW301 interleaving agents and HS-GYW201 interleaving agents are put into, and is stirred；(3) HS-ZNJ is put into above-mentioned mixed liquor again
Tackifier, and stir；(4) HS-GHJ activator and HS-ZQJ early strength agent are then put into, and is stirred；(5) last input
Barite is simultaneously uniformly mixing to obtain insulating liquid.
First, the HS insulating liquids of the present invention and traditional guar gum insulating liquid, CMC insulating liquids are subjected to stability to having a competition
Test, contrasted with the insulating liquid of embodiment two, table 1 is the static suspension stability of the different lower three kinds of systems of dosage at 80 DEG C
Test (80 DEG C) data.
。
Wherein 1. it is water+guar gum insulating liquid（Surfactant+diluent+fluid loss agent+guar gum+barite）；2. for water+
CMC insulating liquids（Surfactant+diluent+fluid loss agent+CMC+ barites）；3. it is the isolation of water+embodiment of the present invention two
Liquid.
2nd, the insulating liquid of cement mortar magma and the present invention that density is 1.90g/cm3 is investigated, drilling fluid is isolated with the present invention
Whether the mobile performance of liquid slurry evaluates different separating liquid systems can be compatible, and as a result as shown in table 2 below, the mud used is
Water-base mud, density 1.40g/cm3.
。
It can be seen that the compatibility of the insulating liquid slurry of the present invention is better than existing other insulating liquids.
3rd, the insulating liquid of the present invention and the compatibility with cement mortar are investigated, using the insulating liquid of the embodiment of the present invention two, examination
It is as shown in table 3 to test data.
。
Wherein V1 is the volume of cement mortar, and V2 is the volume of insulating liquid, and n is liquidity index, and K is consistency coefficient, ηPFor modeling
Property viscosity, τ 0 is yield value, the η of τ 0/PFor ratio of dynamic shear force/yield value to plastic viscosity.It can be seen that insulating liquid and cement mortar have a good compatibility, after slurry
Liquidity index n decrease, be maintained at more than 0.6, plastic viscosity η P are less than 180mpa.s, and consistency coefficient K is less than 1.8, with
The increase of insulating liquid incorporation, the trend of plastic viscosity η P, K all first increases and then decreases of cement mortar, the amplitude of increase 5% ~
Between 20%, first increase, rear to reduce, the ratio of dynamic shear force/yield value to plastic viscosity of slurry is passed layer by layer between insulating liquid and cement mortar in the rheological characteristic of matching
Enter, there is good rheological property.
4th, influence of the insulating liquid of the present invention to cement slurry thickening time is investigated, result of the test is as shown in table 4.
。
Wherein V1 is the volume of cement mortar, and V2 is the volume of insulating liquid, after adding the insulating liquid of different proportion, cement mortar
Thickening time all obtains different degrees of extension, illustrates that the insulating liquid will not cause the thickening in advance of cement mortar, avoids the occurrence of sudden strain of a muscle
Solidifying phenomenon occurs, and main cause is that the component in insulating liquid plays certain deferred action to cement mortar, extends cement mortar
Thickening time, this plays favourable effect to the pollution thickening of drilling fluid/insulating liquid/cement mortar three.The fluid partitioning simultaneously
It is itself to also have certain intensity, the annular pack of Behavior of Hardened Cement Paste is played a part of can not ignore.
HS-GYW301 interleaving agents, HS-GYW201 interleaving agents, HS-ZNJ tackifier, HS-GHJ activator and HS-ZQJ are early strong
Agent preferably uses the product of Sichuan Hong Sheng petroleum technologies Development Co., Ltd.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model
Enclose.In addition to the implementation, the present invention can also have other embodiment.All skills formed using equivalent substitution or equivalent transformation
Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now
There is technology realization, will not be repeated here.
Claims (4)
- A kind of 1. reinforcing oil well exacerbation insulating liquid, it is characterised in that：The raw material components and weight content of the insulating liquid are as follows, Clear water：100 parts；HS-GYW301 interleaving agents：0.95 part；HS-GYW201 interleaving agents：3.4 part；HS-ZNJ tackifier：0.25 part； HS-GHJ activator：8 parts；HS-ZQJ early strength agent：12 parts；92 parts of barite.
- 2. a kind of reinforcing oil well preparation method for aggravating insulating liquid, it is characterised in that in turn include the following steps, (1) by following Component and weight content prepare raw material, clear water：100 parts；HS-GYW301 interleaving agents：0.90 or 0.95 part；HS-GYW201 isolates Agent：（3.0~3.8）Part；HS-ZNJ tackifier：（0.2~0.3）Part；HS-GHJ activator：（5~10）Part；HS-ZQJ early strength agent： （10~15）Part；Barite（85~100）Part；(2) HS-GYW301 interleaving agents and HS-GYW201 interleaving agents are first put into clear water, And stir；(3) HS-ZNJ tackifier are put into above-mentioned mixed liquor again, and are stirred；(4) HS-GHJ activation is then put into Agent and HS-ZQJ early strength agent, and stir；(5) finally put into barite and be uniformly mixing to obtain insulating liquid.
- 3. the reinforcing oil well according to claim 2 preparation method for aggravating insulating liquid, it is characterised in that：The insulating liquid Raw material components and weight content it is as follows, clear water：100 parts；HS-GYW301 interleaving agents：0.90 part；HS-GYW201 interleaving agents： 3.0 part；HS-ZNJ tackifier：0.2 part；HS-GHJ activator：5 parts；HS-ZQJ early strength agent：10 parts；85 parts of barite.
- 4. the reinforcing oil well according to claim 2 preparation method for aggravating insulating liquid, it is characterised in that：The insulating liquid Raw material components and weight content it is as follows, clear water：100 parts；HS-GYW301 interleaving agents：0.95 part；HS-GYW201 interleaving agents： 3.4 part；HS-ZNJ tackifier：0.25 part；HS-GHJ activator：8 parts；HS-ZQJ early strength agent：12 parts；92 parts of barite.
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| CN109281654B (en) * | 2017-07-19 | 2022-03-01 | 中国石油天然气股份有限公司 | Method for evaluating quality of mud cake before well cementation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646834A (en) * | 1980-09-22 | 1987-03-03 | Dowell Schlumberger Incorporated | Aqueous treatment fluid and method of use |
| CN101126017A (en) * | 2006-08-15 | 2008-02-20 | 中国石油天然气集团公司 | Insulating liquid for injecting cement in oil well |
| CN103642476A (en) * | 2013-12-17 | 2014-03-19 | 长江大学 | Shale gas exploitation oil-based drilling fluid well-cementing prepad fluid |
| CN103740344A (en) * | 2013-12-06 | 2014-04-23 | 中国石油集团渤海钻探工程有限公司 | Well cementation displacement efficiency enhancement spacer fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9062241B2 (en) * | 2010-09-28 | 2015-06-23 | Clearwater International Llc | Weight materials for use in cement, spacer and drilling fluids |
-
2015
- 2015-06-18 CN CN201510339049.4A patent/CN104974723B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646834A (en) * | 1980-09-22 | 1987-03-03 | Dowell Schlumberger Incorporated | Aqueous treatment fluid and method of use |
| CN101126017A (en) * | 2006-08-15 | 2008-02-20 | 中国石油天然气集团公司 | Insulating liquid for injecting cement in oil well |
| CN103740344A (en) * | 2013-12-06 | 2014-04-23 | 中国石油集团渤海钻探工程有限公司 | Well cementation displacement efficiency enhancement spacer fluid |
| CN103642476A (en) * | 2013-12-17 | 2014-03-19 | 长江大学 | Shale gas exploitation oil-based drilling fluid well-cementing prepad fluid |
Non-Patent Citations (3)
| Title |
|---|
| 一种提高注水泥质量的可固化工作液体系研究;张林海 等;《西南石油大学学报》;20071130;第29卷;第85-88页 * |
| 一种新型注水泥前置隔离液;邓慧 等;《钻井液与完井液》;20120531;第29卷(第3期);第54页左栏第13-19行和第2节第1段 * |
| 超深井小间隙安全注水泥技术研究与应用;郭小阳 等;《石油钻采工艺》;20150331;第37卷(第2期);第39-43页 * |
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