CN104194748A - Pressure-bearing plugging agent for high temperature deep well - Google Patents
Pressure-bearing plugging agent for high temperature deep well Download PDFInfo
- Publication number
- CN104194748A CN104194748A CN201410385506.9A CN201410385506A CN104194748A CN 104194748 A CN104194748 A CN 104194748A CN 201410385506 A CN201410385506 A CN 201410385506A CN 104194748 A CN104194748 A CN 104194748A
- Authority
- CN
- China
- Prior art keywords
- parts
- plugging agent
- high temperature
- deep well
- pressure
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- 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
- C09K2208/08—Fiber-containing well treatment fluids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a pressure-bearing plugging agent for a high temperature deep well. The material used is a composition of inorganic matters and thermosetting resin. The pressure-bearing plugging agent can resist a high temperature over 200 DEG C and can be used for effectively solving the leakage problem under high-temperature and strong-base conditions. The plugging agent combines bridging plugging with fast dehydrating plugging to effectively prevent horizontal expansion of cracks so as to improve the bearing capacity of the stratum. The plugging agent disclosed by the invention is prepared from the following components in parts by weight: 1-5 parts of rigid particle materials, 3-7 parts of elastic particle materials, 1-5 parts of fiber materials, 1-3 parts of deformed filling materials, 3-7 parts of fast dehydrating materials and the balance of water, totaling 100 parts.
Description
Technical field
The present invention relates to petroleum drilling leakage stopping technology field, particularly relate to a kind of high temperature deep well pressure-bearing plugging agent.
Background technology
Leakage is one of down hole problem common in drilling process, and it not only can expend rig time, loss mud, and likely cause the series of complex situations such as bit freezing, blowout, well slough, and even cause well to be scrapped, cause heavy economic losses.
What domestic processing leakage generally adopted is bridge joint leak stopping, probably accounts for the more than 50% of whole Slot Handling method, and bridge joint leak stopping has economic, easy to use, and the advantage of construction safety can solve the part leakage and the mistake that are caused by hole and crack and return leakage.Select bridge joint patching materials, must meet four and select requirement: 1), with significantly chemical action of transport fluid (drilling fluid) nothing, property of drilling fluid, without damaging influence, is had to temperature resistance ability; 2) the xylocarp shell class material that plays " bridge formation " effect has some strength, in water He in alkali lye, soaks for some time, and intensity, without obvious reduction, can again not pressed leakage in drilling well; 3) material is convenient to processing and management, is difficult for rotting; 4) source is wide, low price.The bridge joint patching materials of domestic use is roughly divided three classes: hard fruit shell class, fibrous material and lamellar material.In Process of Leaking Stoppage, any class material uses separately, and its effect is all limited, only has above-mentioned three class materials with rational ratio and grating compound use, just can receive due effect.
Along with deepening continuously of creeping into, the temperature on leakage stratum is also in continuous rising.Be immersed in hard fruit shell class material in mud and plant fiber material as nut-shell, hazelnut shell, cotton seed hulls and sawdust etc., in well under the condition of high temperature, high pressure and alkali corrosion, As time goes on, these materials are by slowly deliquescing, corrosion, even some material can be burnt, cause bridge joint intensity sharply to decline, be easy to cause leak stopping failure or secondary leakage, cannot fundamentally solve the difficult problem that Formation bearing pressure is low.
Traditional patching materials far from can meet the leak stopping demand of growing deep-well Holes of Complicated Wells, and it is very necessary therefore studying a kind of high temperature deep well pressure-bearing plugging agent.
Summary of the invention
The object of this invention is to provide a kind of high temperature deep well pressure-bearing plugging agent, be intended to solve the technical problem of the leak stopping failure under high temperature, highly basic condition of traditional plugging agent, secondary leakage.
Technical scheme of the present invention is as follows, it is characterized in that being prepared from by the component of following weight part, and total mass umber is in 100 parts:
Wherein rigid particles material DL-1, is a kind of petroleum by-product, forms through 1300 DEG C of left and right high-temperature calcinations, is black or dimmed rigid solid particle, with metalluster, is porousness, is shaped as bullet shape, and particle diameter 4-40 order is not etc.
Resilient particulate materials is crystal carbon, is a kind of elastic granule being formed through high-temperature calcination by special technique, has recoverable deformation, can under the effect of extraneous pressure reduction, clamp-on in minute crack or hole, further fills leakage region.Particle diameter 10-40 order is not etc.
Filamentary material is fibrous magnesium silicate, is a kind of silicates natural mineral fiber, has good tensile strength and temperature resistance.Filamentary material length is 0.5～2mm, and diameter is 0.001～0.5mm.
Distortion compaction material is DL-2, is a kind of snappiness polymer materials with reversible deformation.At room temperature high resilience can produce compared with large deformation under very little External Force Acting, can restore to the original state rapidly after removing external force.Belong to a kind of thermosetting resin, its particle diameter 10-40 order is not etc.
Dehydration material is that diatomite is a kind of natural silicite ore deposit with special porousness structure fast.
The beneficial effect that technical scheme of the present invention has compared to existing technology:
(1) high temperature deep well of the present invention pressure-bearing plugging agent, material therefor is inorganics or thermosetting resin, all can high temperature resistance more than 200 DEG C.The problem of leak stopping strength degradation, leak stopping failure or secondary leakage under the condition of down-hole high temperature, high pressure and alkali corrosion can be effectively solved, the leakage problem of high-temperature stratum can be fundamentally solved.
(2) the present invention has adopted bridge joint leak stopping to combine with quick dehydration leak stopping, first form bridge formation by rigid particles, secondly formed the shutoff at initial stage by recoverable deformation particle and filamentary material, finally forming a large amount of solid phases by quick dehydration material piles up, by the tip in crack and mud isolation, intercept the conduction of mud fluid column pressure to crack tip, can effectively prevent the horizontal expansion in crack, and then improve the bearing capacity on stratum.
Embodiment
Illustrative example is specifically described the present invention below; it is to be noted that following instance is only for further illustrating of the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that the present invention is made and adjustment still belong to protection scope of the present invention.Following described umber is mass parts, and total mass umber is in 100 parts:
1 part of embodiment 1, DL-1 (40 order), 5 parts, crystal carbon (10 order), 1 part of fibrous magnesium silicate, 2 parts of DL-2 (10 order), 1 part of DL-2 (40 order), 3 parts, diatomite, all the other are water.
3 parts of embodiment 2, DL-1 (8 order), 3 parts, crystal carbon (20 order), 1 part of fibrous magnesium silicate, 1 part of DL-2 (10 order), 1 part of DL-2 (40 order), 3 parts, diatomite, all the other are water.
3 parts of embodiment 3, DL-1 (6 order), 3 parts, crystal carbon (20 order), 1 part of fibrous magnesium silicate, 1 part of DL-2 (10 order), 2 parts of DL-2 (40 order), 4 parts, diatomite, all the other are water.
4 parts of embodiment 4, DL-1 (4 order), 4 parts, crystal carbon (20 order), 2 parts of fibrous magnesium silicates, 1 part of DL-2 (10 order), 2 parts of DL-2 (40 order), 5 parts, diatomite, all the other are water.
5 parts of embodiment 5, DL-1 (4 order), 5 parts, crystal carbon (20 order), 2 parts of fibrous magnesium silicates, 2 parts of DL-2 (10 order), 1 part of DL-2 (40 order), 6 parts, diatomite, all the other are water.
5 parts of embodiment 6, DL-1 (4 order), 7 parts, crystal carbon (40 order), 2 parts of fibrous magnesium silicates, 2 parts of DL-2 (10 order), 1 part of DL-2 (20 order), 7 parts, diatomite, all the other are water.
DL-1, the DL-2 using in embodiment 1 to 6 is Bohai Sea drilling project company limited engineering and technological research institute oiling center and produces.
The compound method of leak stopping slurry for experiment: in the bentonite slurry of 5% prehydration, add DL-1 and crystal carbon, stir after 3Omin, add fibrous magnesium silicate, stir after 10min, add DL-2, continue to stir 10min, add diatomite, stir 3Omin, obtain leak stopping slurry.
Experimental technique: shutoff experiment instrument is the DLM-I type sealing Analog Device that Bohai Sea drilling project institute produces.Temperature Setting is 150 DEG C (top temperatures that instrument allows), adopt respectively the wedge of different size to test to above-mentioned case study on implementation, speed with 1～2MPa/30min is slowly pressurizeed, pressure keeps this pressure 4 hours after reaching 7MPa (peak pressure that instrument allows), there is not abrupt pressure reduction phenomenon, show that this leak stopping slurry bearing capacity can reach 7MPa under 150 DEG C of hot conditionss.Concrete numerical value sees the following form:
| ? | Wedge specification used | 150 DEG C/4h bearing capacity |
| Embodiment 1 | Wide 5mm on wedge, lower wide 0.5mm | 7MPa |
| Embodiment 2 | Wide 6mm on wedge, lower wide 1mm | 7MPa |
| Embodiment 3 | Wide 6mm on wedge, lower wide 2mm | 7MPa |
| Embodiment 4 | Wide 7mm on wedge, lower wide 3mm | 6.8MPa |
| Embodiment 5 | Wide 7mm on wedge, lower wide 4mm | 6.5MPa |
| Embodiment 6 | Wide 7mm on wedge, lower wide 5mm | 6.5MPa |
Find out from experimental data, high temperature deep well of the present invention with plugging agent effectively shutoff 5mm with interior crack, under 150 DEG C of hot conditionss, its pressure-bearing is sustainable reach 6.5MP more than, can meet the requirement of the high pressure-bearing of long-time high temperature.
Claims (6)
1. a high temperature deep well pressure-bearing plugging agent, is characterized in that being prepared from by the component of following weight part, and total mass umber is in 100 parts:
2. according to the high temperature deep well pressure-bearing plugging agent described in right 1, it is characterized in that: described rigid particles material is DL-1, its particle diameter is 4-40 order.
3. according to the high temperature deep well pressure-bearing plugging agent described in right 1, it is characterized in that: described resilient particulate materials is crystal carbon, its particle diameter is 10-40 order.
4. according to the high temperature deep well pressure-bearing plugging agent described in right 1, it is characterized in that: described filamentary material is fibrous magnesium silicate, fibrous magnesium silicate length is 0.5-2mm, and diameter is 0.001-0.5mm.
5. according to the high temperature deep well pressure-bearing plugging agent described in right 1, it is characterized in that: described distortion compaction material is DL-2, its particle diameter is 10-40 order.
6. according to the high temperature deep well pressure-bearing plugging agent described in right 1, it is characterized in that: described quick dehydration material is diatomite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385506.9A CN104194748A (en) | 2014-08-06 | 2014-08-06 | Pressure-bearing plugging agent for high temperature deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385506.9A CN104194748A (en) | 2014-08-06 | 2014-08-06 | Pressure-bearing plugging agent for high temperature deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104194748A true CN104194748A (en) | 2014-12-10 |
Family
ID=52080121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385506.9A Pending CN104194748A (en) | 2014-08-06 | 2014-08-06 | Pressure-bearing plugging agent for high temperature deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104194748A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978154A (en) * | 2017-04-13 | 2017-07-25 | 北京探矿工程研究所 | 220 ℃ high-temperature-resistant plugging agent while drilling for drilling fluid and preparation method thereof |
| CN108977183A (en) * | 2017-06-02 | 2018-12-11 | 中石化石油工程技术服务有限公司 | Adaptive sealing agent and preparation method |
| CN105971555B (en) * | 2016-05-05 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | A kind of leak stopping cylinder and plugging slurry joint blocking method for fractured reservoir |
| CN109971442A (en) * | 2019-04-04 | 2019-07-05 | 中国海洋石油集团有限公司 | A kind of formula and preparation method thereof of the high dehydration leak stopping slurry of novel high temperature high density |
| CN110069878A (en) * | 2019-04-29 | 2019-07-30 | 西南石油大学 | A kind of drilling completion plugging material Quantitative scoring preferred method |
| CN110872494A (en) * | 2018-09-04 | 2020-03-10 | 中石化石油工程技术服务有限公司 | High-strength pressure-bearing plugging agent for well drilling and application thereof |
| CN111574970A (en) * | 2020-05-20 | 2020-08-25 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant plugging agent for drilling fluid and preparation method thereof |
| CN111876137A (en) * | 2020-07-22 | 2020-11-03 | 中国地质科学院探矿工艺研究所 | High-temperature-resistant high-pressure-bearing plugging agent |
| CN115322758A (en) * | 2022-08-30 | 2022-11-11 | 新疆格瑞迪斯石油技术股份有限公司 | High-temperature and high-pressure resistant drilling fluid plugging agent |
| CN116376522A (en) * | 2023-03-15 | 2023-07-04 | 重庆科技学院 | Ultrahigh-temperature-resistant high-pressure-resistant plugging agent for drilling fluid of deep well of ten thousand meters and application of plugging agent |
-
2014
- 2014-08-06 CN CN201410385506.9A patent/CN104194748A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971555B (en) * | 2016-05-05 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | A kind of leak stopping cylinder and plugging slurry joint blocking method for fractured reservoir |
| CN106978154A (en) * | 2017-04-13 | 2017-07-25 | 北京探矿工程研究所 | 220 ℃ high-temperature-resistant plugging agent while drilling for drilling fluid and preparation method thereof |
| CN106978154B (en) * | 2017-04-13 | 2020-05-26 | 北京探矿工程研究所 | 220 ℃ high-temperature-resistant plugging agent while drilling for drilling fluid and preparation method thereof |
| CN108977183A (en) * | 2017-06-02 | 2018-12-11 | 中石化石油工程技术服务有限公司 | Adaptive sealing agent and preparation method |
| CN110872494A (en) * | 2018-09-04 | 2020-03-10 | 中石化石油工程技术服务有限公司 | High-strength pressure-bearing plugging agent for well drilling and application thereof |
| CN109971442A (en) * | 2019-04-04 | 2019-07-05 | 中国海洋石油集团有限公司 | A kind of formula and preparation method thereof of the high dehydration leak stopping slurry of novel high temperature high density |
| CN110069878A (en) * | 2019-04-29 | 2019-07-30 | 西南石油大学 | A kind of drilling completion plugging material Quantitative scoring preferred method |
| CN111574970A (en) * | 2020-05-20 | 2020-08-25 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant plugging agent for drilling fluid and preparation method thereof |
| CN111876137A (en) * | 2020-07-22 | 2020-11-03 | 中国地质科学院探矿工艺研究所 | High-temperature-resistant high-pressure-bearing plugging agent |
| CN111876137B (en) * | 2020-07-22 | 2022-10-28 | 中国地质科学院探矿工艺研究所 | High-temperature-resistant high-pressure-bearing plugging agent |
| CN115322758A (en) * | 2022-08-30 | 2022-11-11 | 新疆格瑞迪斯石油技术股份有限公司 | High-temperature and high-pressure resistant drilling fluid plugging agent |
| CN115322758B (en) * | 2022-08-30 | 2023-09-12 | 新疆格瑞迪斯石油技术股份有限公司 | High-temperature and high-pressure resistant drilling fluid plugging agent |
| CN116376522A (en) * | 2023-03-15 | 2023-07-04 | 重庆科技学院 | Ultrahigh-temperature-resistant high-pressure-resistant plugging agent for drilling fluid of deep well of ten thousand meters and application of plugging agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104194748A (en) | Pressure-bearing plugging agent for high temperature deep well | |
| Bai et al. | Gelation study on a hydrophobically associating polymer/polyethylenimine gel system for water shut-off treatment | |
| CN103694973B (en) | Coal bed gas well compound leakage stop agent | |
| CN102443383B (en) | High-dehydration hardenable plugging sealing agent | |
| CN104087274A (en) | Multi-stage blocking pressure-bearing plugging agent | |
| CN111684041A (en) | ARC hybrid particle mixtures for sealer and stopper quality enhancement | |
| CN106609132A (en) | Multiple composite gel leak-stopping agent used for well drilling | |
| CN103897679A (en) | Leak stopping mud bearing high pressure and used for fractured leakage | |
| CN101250398A (en) | Well drilling leak-proof sealing agent | |
| CN105505350A (en) | Elastic and flexible oil well cement slurry system based on temperature sensitive shape memory polymer and preparation method thereof | |
| CN103740351A (en) | Low-density consolidation type plugging agent | |
| CN103820088A (en) | Leakage-stopping agent with sustainable expansibility | |
| CN113122202A (en) | High-temperature-resistant while-drilling plugging agent and preparation method thereof | |
| CN111303842A (en) | Deep crack lost stratum seam hole transformation leakage-proof plugging and reservoir protection material | |
| CN102504781B (en) | Oil and water well sealing and plugging agent and preparation method thereof | |
| CN108587587B (en) | High-strength degradable temporary plugging ball for oil and gas well as preparation method and application of temporary plugging ball | |
| CN110454120B (en) | Construction method for self-gathering sand prevention of oil-water well | |
| CN106554764B (en) | Plasticizer and preparation method thereof and cement slurry including the plasticizer | |
| CN107841300B (en) | Oil-containing sludge type profile control and water shutoff complexing agent | |
| CN107418533B (en) | Thermal production well sealing agent, sealing slurry and sealing method | |
| CN104033606A (en) | Pipeline-trepanning sealing plug | |
| CN104693683A (en) | Ceramic anticorrosive material and application method thereof | |
| CN109705828A (en) | A kind of high temperature resistant sealing agent and preparation method thereof | |
| CN103670314A (en) | Sand prevention hydraulic anchor | |
| CN203099125U (en) | Telescopic structure for mine pasty fluid filling pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |
|
| WD01 | Invention patent application deemed withdrawn after publication |