CN103820088A - Leakage-stopping agent with sustainable expansibility - Google Patents
Leakage-stopping agent with sustainable expansibility Download PDFInfo
- Publication number
- CN103820088A CN103820088A CN201310667534.5A CN201310667534A CN103820088A CN 103820088 A CN103820088 A CN 103820088A CN 201310667534 A CN201310667534 A CN 201310667534A CN 103820088 A CN103820088 A CN 103820088A
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- China
- Prior art keywords
- sustainable
- shell
- agent
- straw
- stalk
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Classifications
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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
- C09K8/42—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
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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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/04—Hulls, shells or bark containing well drilling or treatment fluids
-
- 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
- C09K2208/18—Bridging agents, i.e. particles for temporarily filling the pores of a formation; Graded salts
Abstract
The invention discloses a leakage-stopping agent with sustainable expansibility. The leakage-stopping agent with sustainable expansibility comprises 50 to 70 wt% of a bridging agent, 10 to 20 wt% of a packing agent, 1 to 5 wt% of fibrous material and 10 to 15 wt% of delayed-expansion gel material, wherein the bridging agent is a mixture of vermiculite, rice hull and nut shell according to any ratio; the packing agent is a mica sheet; the fibrous material is a plant straw; the delayed-expansion gel material is a polyacrylamide gel particle. The leakage-stopping agent has certain deformability and strength, has sustainable expansibility within a certain time, can improve the leakage-stopping effect and the loading capacity of stratum, can reduce the loss of lost circulation and can improve the comprehensive efficiency of well drilling.
Description
Technical field
The present invention relates to oil and gas exploration field, particularly a kind of sustainable swelling property plugging agent.
Background technology
Leakage is to have a strong impact on drilling well to produce one of down hole problem normally carrying out, the harm that oil-gas exploration, drilling well and development operation is brought to following several respects: 1) incur loss through delay the drilling operation time and extend drilling period; 2) cause larger material unaccounted-for (MUF); 3) reservoir leakage can reduce production capacity; 4) disturb geological logging work; 5) the conventional maintenance processing of interference property of drilling fluid; 6) cause down hole problem.Leakage occurs in drilling process and can cause liquid level in well to decline, drilling fluid column pressure reduces, and even may cause blowout or bit freezing, will cause huge financial loss.
Patching materials kind is numerous both at home and abroad, mainly contain bridge joint patching materials, high dehydration patching materials, stifled material, chemical plugging material, inorganic gel patching materials and soft (firmly) plug class patching materials etc. temporarily, these plugging agents mainly exist following defect in the time of drilling leakage blockage: the one, and the rigidity of patching materials self is stronger, be difficult to enter drop ply with drop ply hole, the unmatched particle of fracture shape, only can be at drop ply surface sediment; The 2nd, patching materials does not have swelling property or swell increment is less, is difficult under external force being stably trapped in drop ply.So can there is repeatability leakage after the in use not good or leak stopping of plugging effect of above-mentioned patching materials.
Summary of the invention
In order to improve the plugging effect of plugging agent, the invention provides a kind of sustainable swelling property plugging agent, this plugging agent has certain deformability and intensity, has a sustainable expansion characteristics within a certain period of time, can improve the bearing capacity on plugging effect and stratum, reduce the loss of leakage, improve drilling well overall efficiency.
For this reason, technical scheme of the present invention is as follows:
A kind of sustainable swelling property plugging agent, the fibrous material of the bridging agent that comprises 50～70wt%, the tamping of 10～20wt%, 1～5wt% and the delayed expansion gelatinous material of 10～15wt%;
Described bridging agent is the mixture of any ratio of vermiculite, rice husk and nutshell;
Described tamping is sheet mica;
Described fibrous material is straw;
Described delayed expansion gelatinous material is polyacrylamide gel particle.
Described vermiculite particle diameter is 0.25～2mm; Described rice husk particle diameter is 0.6～4mm; Described nutshell particle diameter is 2～25mm; Described sheet mica particle diameter is 0.4～6mm.
Described nutshell be in nut-shell, Pericarppium Armeniacae Amarum, cashew nut shell, hazelnut shell, pine nut shell, gingko shell, Pericarppium arachidis hypogaeae, chestnut shell, melon seed cases, happy shell and Hawaii shell any one or arbitrarily several with arbitrarily than mixture.
Described straw be length be in straw, wheat straw, corn stalk, Cotton Stalk, rape straw, beanstalk, peanut stems, sorghum stalk, potato class straw, hemp stalk, cigarette stalk and the sunflower stalk of 10～30mm any one or arbitrarily several with arbitrarily than mixture.
A preparation method for sustainable swelling property plugging agent, is characterized in that: the delayed expansion gelatinous material of the fibrous material of the tamping of the bridging agent of 50～70wt%, 10～20wt%, 1～5wt% and 10～15wt% is added in tank and stirs, mixes;
Described bridging agent is the mixture of any ratio of vermiculite, rice husk and nutshell;
Described tamping is sheet mica;
Described fibrous material is straw;
Described delayed expansion gelatinous material is polyacrylamide gel particle.
This plugging agent has certain deformability and intensity, has sustainable expansion characteristics within a certain period of time, can improve the bearing capacity on plugging effect and stratum, reduces the loss of leakage, improves drilling well overall efficiency.
In Lab-evaluation and rig-site utilization, this product all shows good plugging effect and bearing capacity, can be good at blocking drop ply and forms the surface with certain toughness, higher-strength, is difficult for causing secondary leakage.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described in detail.
Experiment condition:
The sodium soil mud of preparation 6wt%, at room temperature curing in airtight condition 24h, to the plugging agent that adds respectively the present invention of 5wt% or 10wt% to make in the sodium soil mud preparing, stirring at low speed 2h, static 4h is for subsequent use; Utilization is tested with JHB type High Temperature High Pressure leak stopping instrument, is selected different aperture plate to carry out bearing capacity experiment, show that data illustrate respectively in embodiment 1～4.
Embodiment 1
Plugging agent 1:64wt% nutshell+20wt% sheet mica sheet+1wt% straw+15wt% polyacrylamide gel particle.
Sodium soil paste+5wt% plugging agent 1 of testing instrument: 2L6wt%;
The bearing capacity of the present embodiment plugging agent: 1mm aperture plate is 5MPa.
Embodiment 2
Plugging agent 2:60wt% nutshell+20wt% sheet mica sheet+5wt% straw+15wt% polyacrylamide gel particle.
Sodium soil paste+5wt% plugging agent 2 of testing instrument: 2L6wt%
The bearing capacity of the present embodiment plugging agent: 3mm aperture plate is 5MPa;
Embodiment 3
Plugging agent 3:70wt% nutshell+15wt% sheet mica sheet+1wt% straw+14wt% polyacrylamide gel particle.
Sodium soil paste+10wt% plugging agent 3 of testing instrument: 2L6wt%
The bearing capacity of the present embodiment plugging agent: 5mm aperture plate is 4MPa;
Embodiment 4
Plugging agent 4:65wt% nutshell+20wt% sheet mica sheet+5wt% straw+10wt% polyacrylamide gel particle.
Sodium soil paste+10wt% plugging agent 4 of testing instrument: 4L6wt%
The bearing capacity of the present embodiment plugging agent: 5mm aperture plate bearing capacity reaches 4MPa.
Claims (4)
1. a sustainable swelling property plugging agent, is characterized in that: the fibrous material of the bridging agent that comprises 50～70wt%, the tamping of 10～20wt%, 1～5wt% and the delayed expansion gelatinous material of 10～15wt%;
Described bridging agent is the mixture of any ratio of vermiculite, rice husk and nutshell;
Described tamping is sheet mica;
Described fibrous material is straw;
Described delayed expansion gelatinous material is polyacrylamide gel particle.
2. sustainable swelling property plugging agent as claimed in claim 1, is characterized in that: described vermiculite particle diameter is 0.25～2mm; Described rice husk particle diameter is 0.6～4mm; Described nutshell particle diameter is 2～25mm; Described sheet mica particle diameter is 0.4～6mm.
3. sustainable swelling property plugging agent as claimed in claim 1 or 2, is characterized in that: described nutshell be in nut-shell, Pericarppium Armeniacae Amarum, cashew nut shell, hazelnut shell, pine nut shell, gingko shell, Pericarppium arachidis hypogaeae, chestnut shell, melon seed cases, happy shell and Hawaii shell any one or arbitrarily several with arbitrarily than mixture.
4. sustainable swelling property plugging agent as claimed in claim 1, is characterized in that: described straw be length be in straw, wheat straw, corn stalk, Cotton Stalk, rape straw, beanstalk, peanut stems, sorghum stalk, potato class straw, hemp stalk, cigarette stalk and the sunflower stalk of 10～30mm any one or arbitrarily several with arbitrarily than mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667534.5A CN103820088A (en) | 2013-12-10 | 2013-12-10 | Leakage-stopping agent with sustainable expansibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667534.5A CN103820088A (en) | 2013-12-10 | 2013-12-10 | Leakage-stopping agent with sustainable expansibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103820088A true CN103820088A (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310667534.5A Pending CN103820088A (en) | 2013-12-10 | 2013-12-10 | Leakage-stopping agent with sustainable expansibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103820088A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016651A (en) * | 2015-07-14 | 2015-11-04 | 桂林市和鑫防水装饰材料有限公司 | Expansion-controllable plugging agent |
| CN106277989A (en) * | 2016-08-17 | 2017-01-04 | 张静 | A kind of preparation method of anti-leakage blocking agent |
| CN106281265A (en) * | 2016-07-20 | 2017-01-04 | 中石化石油工程技术服务有限公司 | A kind of extremely-low density sealing agent being applicable to low pressure and leakmess formation and preparation method |
| CN106566500A (en) * | 2016-10-17 | 2017-04-19 | 大港油田集团有限责任公司 | Preparation method and application of carbonized rice hull powder particle control and flooding agent |
| CN106867485A (en) * | 2015-12-10 | 2017-06-20 | 中国石油天然气股份有限公司 | A kind of high temperature resistance sealing agent, preparation method and applications |
| CN109370558A (en) * | 2018-12-27 | 2019-02-22 | 中国石油大学(华东) | A kind of diverting agent and water flooding method for blocking temporarily blocking up fracturing technology suitable for oil and gas reservoir |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153199A (en) * | 1995-12-29 | 1997-07-02 | 四川石油管理局川东钻探公司 | Compound leakage stop agent for drilling and producing process thereof |
| CN1432620A (en) * | 2002-01-14 | 2003-07-30 | 中国石油化工股份有限公司 | Temporary leakage-stopping agent for well drilling shielding and its application |
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN102703043A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel plugging material |
-
2013
- 2013-12-10 CN CN201310667534.5A patent/CN103820088A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153199A (en) * | 1995-12-29 | 1997-07-02 | 四川石油管理局川东钻探公司 | Compound leakage stop agent for drilling and producing process thereof |
| CN1432620A (en) * | 2002-01-14 | 2003-07-30 | 中国石油化工股份有限公司 | Temporary leakage-stopping agent for well drilling shielding and its application |
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN102703043A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel plugging material |
Non-Patent Citations (1)
| Title |
|---|
| 唐军: "平落坝特殊漏层的堵漏工艺初探", 《钻采工艺》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016651A (en) * | 2015-07-14 | 2015-11-04 | 桂林市和鑫防水装饰材料有限公司 | Expansion-controllable plugging agent |
| CN106867485A (en) * | 2015-12-10 | 2017-06-20 | 中国石油天然气股份有限公司 | A kind of high temperature resistance sealing agent, preparation method and applications |
| CN106867485B (en) * | 2015-12-10 | 2019-10-11 | 中国石油天然气股份有限公司 | A kind of sealing agent resistant to high temperatures, preparation method and applications |
| CN106281265A (en) * | 2016-07-20 | 2017-01-04 | 中石化石油工程技术服务有限公司 | A kind of extremely-low density sealing agent being applicable to low pressure and leakmess formation and preparation method |
| CN106277989A (en) * | 2016-08-17 | 2017-01-04 | 张静 | A kind of preparation method of anti-leakage blocking agent |
| CN106566500A (en) * | 2016-10-17 | 2017-04-19 | 大港油田集团有限责任公司 | Preparation method and application of carbonized rice hull powder particle control and flooding agent |
| CN106566500B (en) * | 2016-10-17 | 2019-06-07 | 大港油田集团有限责任公司 | A kind of preparation method and application of carbonization rice husk powder particles profile control agent |
| CN109370558A (en) * | 2018-12-27 | 2019-02-22 | 中国石油大学(华东) | A kind of diverting agent and water flooding method for blocking temporarily blocking up fracturing technology suitable for oil and gas reservoir |
| CN109370558B (en) * | 2018-12-27 | 2021-09-10 | 中国石油大学(华东) | Temporary plugging agent suitable for temporary plugging fracturing process of oil-gas reservoir and stratum water plugging method |
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Application publication date: 20140528 |