CN102391845A - Composite chemical blocking agent - Google Patents
Composite chemical blocking agent Download PDFInfo
- Publication number
- CN102391845A CN102391845A CN2011102689975A CN201110268997A CN102391845A CN 102391845 A CN102391845 A CN 102391845A CN 2011102689975 A CN2011102689975 A CN 2011102689975A CN 201110268997 A CN201110268997 A CN 201110268997A CN 102391845 A CN102391845 A CN 102391845A
- Authority
- CN
- China
- Prior art keywords
- agent
- composite chemical
- chemical blocking
- solidification
- blocking agent
- 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.)
- Granted
Links
Abstract
The invention relates to a composite chemical blocking agent. The chemical blocking agent consists of structure forming agent, curing reinforcing agent, fiber plasticity reinforcing agent, suspension stabilizer, water holding thickening time control agent and the like. Compared with the conventional oil well cement blocking agent, the composite chemical blocking agent has the advantages of high construction safety, high blocking success rate, high blocking strength, long validity period, high mineralization resistance, high temperature and high pressure resistance and the like. The composite chemical blocking agent applied in chemical blocking and channeling sealing processes of oil and gas wells achieves good effects.
Description
Technical field
The present invention relates to chemical plugging Technology field, be specifically related to the stifled agent of a kind of composite chemical.
Background technology
Along with the lasting exploitation of fld, the reserves development degree improves constantly, and hydrocarbon-bearing pool aquifer yield and water outlet gas well number increase rapidly; Various contradictions and problem progressively manifest; Particularly the oil gas well gets into the late high water content period development phase, owing to geology reason, cementing quality problem, shake out serious, scurry layer, Bian Shui, end Shuitu and advance, make some oil gas wells to cross early leaving or water logging, water outlet has become the important factor that restricts the gas field production capacity; Be mainly reflected in: fld whole water outlet the growth fast oil, gas, water relation complicacy; Pit shaft hydrops rule is not clear, and per-well production is successively decreased obviously, and output descends rapidly; Dead well increases fld production influence fairly obvious year by year, presses for the working condition that improves product aqueous vapor well and delays the influence of water outlet to output.
The research of oilfield chemistry plugging agent and application receive the attention of world oil, petrochemical industry, geology, chemist day by day.The scientific worker has developed water glass HS chemistry water blockoff, polymkeric substance water blockoff and multinomial chemical plugging technology such as envelope is scurried, the chemical water plugging of superpolymer single-fluid process at present.These water-plugging techniques have played vital role in oil-field development, yet water glass HS chemistry water-plugging technique construction technology is complicated, difficulty is big, danger is bigger, and the plugging agent consumption is big, long construction period, de-plugging difficulty are bigger; It is shorter with the polyurethane to be that the cyanogen of main body composition coagulates stifled agent gel time, and consumption is few, and plugging strength is high, but complex process, and dangerous higher, shutoff thickness is little, should not use during big section shutoff.Therefore, strengthen the preparation of novel stifled agent, improve plugging effect, reduce the construction operation cost, promote economic benefit, remain the important topic of oil well chemical shutoff work sutdy.
Summary of the invention
In order to solve above-mentioned purpose, the invention provides a kind of high performance compound chemical plugging agent.
The technical scheme that the present invention adopts is: a kind of composite chemical plugging agent; Comprise structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and water conservation adjustable solidification agent; Wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and the shared mass ratio of water conservation adjustable solidification agent are respectively: 60%-80%, 15%-35%, 2%-3%; 3%-5%, 3%-5%.
Preferably a kind of oil well cement of said structure-forming agent, especially preferably high anti-cement of G level or superfine cement.(the 200-600 order is waited radius to different holes).
Said solidification intensifier is flyash a kind of preferably.(the further filling hole of subparticle improves fine and close ultimate compression strength (48h water-bath)＞14MPa (the full no shrinkage phenomenon of test block))
Said fiber plasticity toughener preferably is prone to disperse polypropylene fibre.(improve toughness and improve stratum and interface agglutination performance)
Said suspension stabilizer is superfine silicon dioxide and mineral fibre 1: 1.(improve suspending power and increase the internal sizes knotting strength)
Said water conservation adjustable solidification agent is SEPIGEL 305, Z 150PH, many methylcellulose gum 1: 2: 2.(reduce bleed rate (leaving standstill)＜1.4%/120min, regulate presetting period＞8 hour, final setting time＜36 hour, Applicable temperature 50-90 ℃, salinity Ca++=1500mg/L; Mg++=1000mg/L; Cl-=150000mg/L, total mineralization=200000mg/L.)
The invention has the beneficial effects as follows: the present invention is the basis with reservoir properties and shutoff mechanism; Developed a kind of novel composite high-performance chemical plugging agent; Simultaneously; In implementation process, improve in construction technology, as: inject technology, rig-site utilization such as discharge capacity control, injection pressure control, pressure equilibrium control, operating tool string and obtained good effect.
Embodiment
A kind of composite chemical plugging agent; Comprise structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and water conservation adjustable solidification agent; Wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and the shared mass ratio of water conservation adjustable solidification agent are respectively: 60%-80%, 15%-35%, 2%-3%; 3%-5%, 3%-5%.
Preferably a kind of oil well cement of said structure-forming agent, especially preferably high anti-cement of G level or superfine cement.(the 200-600 order is waited radius to different holes).
Said solidification intensifier is flyash a kind of preferably.(the further filling hole of subparticle improves fine and close ultimate compression strength (48h water-bath)＞14MPa (the full no shrinkage phenomenon of test block))
Said fiber plasticity toughener preferably is prone to disperse polypropylene fibre.(improve toughness and improve stratum and interface agglutination performance)
Said suspension stabilizer is superfine silicon dioxide and mineral fibre 1: 1.(improve suspending power and increase the internal sizes knotting strength)
Said water conservation adjustable solidification agent is SEPIGEL 305, Z 150PH, many methylcellulose gum 1: 2: 2.(reduce bleed rate (leaving standstill)＜1.4%/120min, regulate presetting period＞8 hour, final setting time＜36 hour, Applicable temperature 50-90 ℃, salinity Ca++=1500mg/L; Mg++=1000mg/L; Cl-=150000mg/L, total mineralization=200000mg/L.)
Below be one embodiment of the present of invention, the actual use of the present invention is not limited thereto embodiment.
Embodiment 1:
A kind of composite chemical plugging agent; Comprise structure-forming agent, solidification intensifier, fiber plasticity toughener, swelling agent and properties modifier; Wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, swelling agent and the shared mass ratio of properties modifier are respectively: 60%-80%, 15%-35%, 0.3%-0.35%; 3%-5%, 0.2%-0.25%.
Embodiment 2
A kind of composite chemical plugging agent; Comprise structure-forming agent, solidification intensifier, fiber plasticity toughener, swelling agent and properties modifier; Wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, swelling agent and the shared mass ratio of properties modifier are respectively: 67%, 20%, 3%; 5%, 5%.
After well is using other shutoff failure, adopt composite plugging agent shutoff according to the invention, adopt construction technology under field by using oil jacket balancing processing flow process, the envelope.
Shutoff: on-the-spot two 7m3 stirred pots configuration stifled agent 15m3 density 1.75g/cm3 (structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and properties modifier; Wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and the shared mass ratio of property water conservation adjustable solidification agent are respectively 67%; 20%; 3%, 5%, 5%).Operation pressure rises to once success of 16MPa construction by 3MPa.
For the advantage of composite plugging agent according to the invention is described, the performance measurement below having done, its concrete measured performance parameter is as shown in the table:
Composite multifunction chemical plugging agent to preparation carries out correlated performance parametric measurement table as a result
| Sequence number | Project | Performance |
| 1 | Density | 1.6-1.85g/cm 3Between adjustable |
| 2 | Degree of mobilization | ＞20cm (after fully stirring, pumpability is good) |
| 3 | Bleed rate (leaving standstill 120min) | ＜1.4％ |
| 4 | Thickening time | ＞6 hours, normal temperature 24h did not coagulate |
| 5 | Presetting period | ＞8 hours |
| 6 | Final setting time | ＜36 hours |
| 7 | Applicable temperature | 50-120℃ |
| 8 | Ultimate compression strength (48h water-bath) | ＞14MPa (the full no shrinkage phenomenon of test block) |
Claims (6)
1. composite chemical plugging agent; It is characterized in that, comprise structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and properties modifier, wherein said structure-forming agent, solidification intensifier, fiber plasticity toughener, suspension stabilizer and the shared mass ratio of property water conservation adjustable solidification agent are respectively: 60%-80%; 15%-35%; 2%-3%, 3%-5%, 3%-5%.
2. composite chemical plugging agent according to claim 1 is characterized in that said structure-forming agent is high anti-cement of G level or superfine cement.
3. composite chemical plugging agent according to claim 2 is characterized in that said solidification intensifier is a kind of of flyash.
4. composite chemical plugging agent according to claim 3 is characterized in that said plasticity toughener is to be prone to disperse a kind of of polypropylene fibre.
5. composite chemical plugging agent according to claim 4 is characterized in that.Suspension stabilizer is superfine silicon dioxide and mineral fibre 1: 1.
6. according to claim 1,2,3,4 or 5 described composite chemical plugging agents, it is characterized in that described water conservation adjustable solidification agent is SEPIGEL 305, Z 150PH, many methylcellulose gum 1: 2: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110268997.5A CN102391845B (en) | 2011-09-13 | 2011-09-13 | A kind of composite chemical blocking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110268997.5A CN102391845B (en) | 2011-09-13 | 2011-09-13 | A kind of composite chemical blocking agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102391845A true CN102391845A (en) | 2012-03-28 |
| CN102391845B CN102391845B (en) | 2016-07-27 |
Family
ID=45859231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110268997.5A Expired - Fee Related CN102391845B (en) | 2011-09-13 | 2011-09-13 | A kind of composite chemical blocking agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102391845B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614126A (en) * | 2013-10-21 | 2014-03-05 | 中国石油大学(华东) | Temperature-resistant salt-tolerate inorganic particle water-blocking agent |
| CN103788936A (en) * | 2013-11-08 | 2014-05-14 | 东方宝麟科技发展(北京)有限公司 | High-strength temporary blocking agent for oil and gas wells and preparation method and application thereof |
| CN103965847A (en) * | 2013-01-30 | 2014-08-06 | 中国石油天然气股份有限公司 | Solidifiable anti-leakage sealing and plugging agent |
| CN105018054A (en) * | 2015-07-21 | 2015-11-04 | 嘉华特种水泥股份有限公司 | Oil and gas well sealing plugging agent |
| CN105154041A (en) * | 2015-07-27 | 2015-12-16 | 中国石油集团渤海钻探工程有限公司 | Oil well cement flexibilizer |
| CN106479462A (en) * | 2016-08-26 | 2017-03-08 | 北京华油陆海科技有限公司 | A kind of blocking agent and preparation method thereof and oil well casing leak stopping envelope alter method |
| CN106566499A (en) * | 2016-10-11 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Plugging slurry for enhancing pressure-bearing capacity of leakage formation and preparation method thereof |
| CN104250547B (en) * | 2013-06-29 | 2017-05-24 | 中国石油化工股份有限公司 | Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well |
| CN107663445A (en) * | 2016-07-28 | 2018-02-06 | 中国石油化工股份有限公司 | A kind of sealing skill pressure sensitive chemical sealing agent |
| CN109650788A (en) * | 2017-10-12 | 2019-04-19 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid gas-bearing reservoir plugging material |
| CN110093146A (en) * | 2018-01-29 | 2019-08-06 | 中国石油天然气股份有限公司 | A kind of sealing agent, sealing agent slurry |
| CN110700785A (en) * | 2019-10-29 | 2020-01-17 | 中国石油化工股份有限公司 | Sedimentation and floating composite leaking stoppage repairing method for damaged casing |
| CN106995686B (en) * | 2016-01-25 | 2020-04-14 | 中石化石油工程技术服务有限公司 | Controllable gelling plugging agent |
| CN111472715A (en) * | 2019-01-23 | 2020-07-31 | 中石化石油工程技术服务有限公司 | Hard formation open hole sidetrack drilling and filling material and application method thereof |
| CN111662696A (en) * | 2020-06-03 | 2020-09-15 | 中国石油化工股份有限公司 | Plugging agent and plugging suspension for heavy oil thermal recovery and preparation method thereof |
| CN116333702A (en) * | 2023-05-23 | 2023-06-27 | 奥联图(西安)能源有限公司 | Thixotropic plugging agent and plugging method and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566254A (en) * | 2003-06-26 | 2005-01-19 | 大庆油田有限责任公司 | Cement fly ash profile control agent for plugging of oil and water well |
| US20050061505A1 (en) * | 2003-09-24 | 2005-03-24 | Halliburton Energy Services, Inc. | Cement compositions comprising strength-enhancing lost circulation materials and methods of cementing in subterranean formations |
| CN101712863A (en) * | 2009-11-04 | 2010-05-26 | 北京德美高科科技有限责任公司 | Water plugging agent for carbonatite and preparation method and using method thereof |
| CN101857799A (en) * | 2010-06-28 | 2010-10-13 | 西南石油大学 | Curable leaking stoppage spacer fluid and preparation method thereof |
| CN102061151A (en) * | 2009-11-13 | 2011-05-18 | 中国石油化工股份有限公司 | Plugging bearing material for petroleum drilling, and preparation method and application thereof |
-
2011
- 2011-09-13 CN CN201110268997.5A patent/CN102391845B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566254A (en) * | 2003-06-26 | 2005-01-19 | 大庆油田有限责任公司 | Cement fly ash profile control agent for plugging of oil and water well |
| US20050061505A1 (en) * | 2003-09-24 | 2005-03-24 | Halliburton Energy Services, Inc. | Cement compositions comprising strength-enhancing lost circulation materials and methods of cementing in subterranean formations |
| CN101712863A (en) * | 2009-11-04 | 2010-05-26 | 北京德美高科科技有限责任公司 | Water plugging agent for carbonatite and preparation method and using method thereof |
| CN102061151A (en) * | 2009-11-13 | 2011-05-18 | 中国石油化工股份有限公司 | Plugging bearing material for petroleum drilling, and preparation method and application thereof |
| CN101857799A (en) * | 2010-06-28 | 2010-10-13 | 西南石油大学 | Curable leaking stoppage spacer fluid and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 凡玉梅: "稠油油藏边水封堵实践与效果评价", 《海洋石油》 * |
| 杨昌华等: "TY-II耐高温抗盐触变性封窜堵漏剂及其应用", 《油田化学》 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965847A (en) * | 2013-01-30 | 2014-08-06 | 中国石油天然气股份有限公司 | Solidifiable anti-leakage sealing and plugging agent |
| CN103965847B (en) * | 2013-01-30 | 2016-06-08 | 中国石油天然气股份有限公司 | Can the anti-leakage plugging agent of consolidation |
| CN104250547B (en) * | 2013-06-29 | 2017-05-24 | 中国石油化工股份有限公司 | Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well |
| CN103614126A (en) * | 2013-10-21 | 2014-03-05 | 中国石油大学(华东) | Temperature-resistant salt-tolerate inorganic particle water-blocking agent |
| CN103788936A (en) * | 2013-11-08 | 2014-05-14 | 东方宝麟科技发展(北京)有限公司 | High-strength temporary blocking agent for oil and gas wells and preparation method and application thereof |
| CN103788936B (en) * | 2013-11-08 | 2016-05-04 | 东方宝麟科技发展(北京)有限公司 | A kind of high strength Oil/gas Well diverting agent, preparation and application thereof |
| CN105018054A (en) * | 2015-07-21 | 2015-11-04 | 嘉华特种水泥股份有限公司 | Oil and gas well sealing plugging agent |
| CN105154041A (en) * | 2015-07-27 | 2015-12-16 | 中国石油集团渤海钻探工程有限公司 | Oil well cement flexibilizer |
| CN106995686B (en) * | 2016-01-25 | 2020-04-14 | 中石化石油工程技术服务有限公司 | Controllable gelling plugging agent |
| CN107663445B (en) * | 2016-07-28 | 2021-12-17 | 中国石油化工股份有限公司 | Pressure-sensitive chemical plugging agent for plugging |
| CN107663445A (en) * | 2016-07-28 | 2018-02-06 | 中国石油化工股份有限公司 | A kind of sealing skill pressure sensitive chemical sealing agent |
| CN106479462A (en) * | 2016-08-26 | 2017-03-08 | 北京华油陆海科技有限公司 | A kind of blocking agent and preparation method thereof and oil well casing leak stopping envelope alter method |
| CN106566499B (en) * | 2016-10-11 | 2020-03-17 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Plugging slurry for improving pressure bearing capacity of leakage stratum and preparation method thereof |
| CN106566499A (en) * | 2016-10-11 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Plugging slurry for enhancing pressure-bearing capacity of leakage formation and preparation method thereof |
| CN109650788A (en) * | 2017-10-12 | 2019-04-19 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid gas-bearing reservoir plugging material |
| CN109650788B (en) * | 2017-10-12 | 2022-02-11 | 中石化石油工程技术服务有限公司 | Gas storage layer plugging material for drilling fluid |
| CN110093146A (en) * | 2018-01-29 | 2019-08-06 | 中国石油天然气股份有限公司 | A kind of sealing agent, sealing agent slurry |
| CN111472715A (en) * | 2019-01-23 | 2020-07-31 | 中石化石油工程技术服务有限公司 | Hard formation open hole sidetrack drilling and filling material and application method thereof |
| CN110700785A (en) * | 2019-10-29 | 2020-01-17 | 中国石油化工股份有限公司 | Sedimentation and floating composite leaking stoppage repairing method for damaged casing |
| CN111662696A (en) * | 2020-06-03 | 2020-09-15 | 中国石油化工股份有限公司 | Plugging agent and plugging suspension for heavy oil thermal recovery and preparation method thereof |
| CN116333702A (en) * | 2023-05-23 | 2023-06-27 | 奥联图(西安)能源有限公司 | Thixotropic plugging agent and plugging method and preparation method |
| CN116333702B (en) * | 2023-05-23 | 2023-08-22 | 奥联图(西安)能源有限公司 | Thixotropic plugging agent and plugging method and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102391845B (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102391845A (en) | Composite chemical blocking agent | |
| CN100344723C (en) | Comprehensive performace regulator for well cementing cement slurry and its prepn | |
| CN103086688B (en) | Method for preparing artificial stone by modifying magnesium oxychloride cement with metakaolin-aluminum dihydrogen phosphate composite modifier | |
| CN103787609B (en) | A kind of the reinforcement of concrete subtracts jelly and preparation method thereof | |
| CN104099071A (en) | Horizontal well-cementation expandable cement mortar and preparation method thereof | |
| RU2015101732A (en) | METHOD FOR PROCESSING UNDERGROUND LAYER WITH SUSPENSION OF CEMENT MORTAR WITH THE POSSIBILITY OF EDUCATION OF PERMEABLE HARDENED CEMENT MORTAR | |
| CN101054513A (en) | Deep water low temperature cementing cement system | |
| CN103979914A (en) | Curing agent for reinforcing and treating soft soil foundation constructed at low temperature and preparation method thereof | |
| CN105347716A (en) | Dispersive chlorine-free low-temperature early-strength agent used for oil well cement and cement mortar including same | |
| CN104402350B (en) | Earth building material modification method and the method that building block is prepared using the modified raw-soil | |
| CN104194752A (en) | Low-temperature early strength agent for coal bed gas well cementing and cement slurry for well cementing containing low-temperature early strength agent | |
| CN110078403A (en) | A kind of super hardening alkali-free liquid accelerator and preparation method thereof | |
| CN106753294B (en) | A kind of leak-stopping cement mortar | |
| CN103319650A (en) | Phosphoaluminate cement system fluid loss additive and preparation method thereof | |
| CN102321459A (en) | Oil well cement chlorine-free coagulation accelerating early strength agent | |
| CN108529918B (en) | Modified aluminum-silicon particles and modifier thereof | |
| CN103571444A (en) | High temperature-resistant oil well cement additive, and preparation and applications thereof | |
| CN106479461A (en) | A kind of preparation method of high-intensity cement paste | |
| CN101633836B (en) | Quick-setting early strength cement slurry for ground pregrouting reinforcement | |
| CN103588450B (en) | A kind of fly ash autoclaved brick containing building castoff | |
| CN105062447A (en) | Channeling sealing agent for thermal recovery and preparation method thereof | |
| CN109400020B (en) | High-strength heat-preservation anti-cracking concrete and preparation method thereof | |
| CN110563428B (en) | Well cementation cement for ultra-high temperature deep well and preparation method and application thereof | |
| CN106010495A (en) | Decompression and augmented injection agent for water injection wells and preparation method thereof | |
| CN105541253A (en) | Lime-free B05-level autoclaved aerated concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150923 Address after: 062552, Hebei City, Renqiu Province West Ring Road Si Si Industrial Zone Applicant after: AOYUAN PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 062552 Renqiu Huabei Petroleum communication office, Hebei, China Applicant before: Renqiu Huabei Petroleum Tongyun Petroleum Machinery Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20210913 |