CN102504781B - Oil and water well sealing and plugging agent and preparation method thereof - Google Patents
Oil and water well sealing and plugging agent and preparation method thereof Download PDFInfo
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- CN102504781B CN102504781B CN 201110311755 CN201110311755A CN102504781B CN 102504781 B CN102504781 B CN 102504781B CN 201110311755 CN201110311755 CN 201110311755 CN 201110311755 A CN201110311755 A CN 201110311755A CN 102504781 B CN102504781 B CN 102504781B
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Abstract
The invention relates to the technical field of oilfield chemistry, in particular to an oil and water well sealing and plugging agent and a preparation method of the oil and water well sealing and plugging agent. The oil and water well sealing and plugging agent is suitable for sealing and plugging an oil and water well. The oil and water well sealing and plugging agent consists of the following raw materials: XP lost circulation additive, G-class oil-well cement, blast furnace KZ micro powder, borax and water. The oil and water well sealing and plugging agent has the beneficial effects that the oil and water well sealing and plugging agent is simple to prepare, is convenient to construct, is safe and reliable and has high plugging strength; the oil and water well sealing and plugging agent has the characteristics of excellent suspension stability, low initial viscosity, easiness for pumping, high temperature resistance, high curing strength and the like and is mainly applied to non-corresponding production layers caused by poor cementing quality or damage to a sleeve above and below a perforated section of the oil and water well; the requirements on sealing and plugging of the oil and water well can be met; and currently, the oil and water well sealing and plugging agent is accumulatively implemented for over 90 well times, good sealing and plugging effects are obtained and the water injection efficiency is also improved.
Description
Technical field
The present invention relates to the oilfield chemical technology field, is that a kind of oil and water well envelope is scurried leak stopping blocking agent and preparation method thereof, is applicable to that the oil and water well envelope scurries leak stopping.
Background technology
Adopt in the process at the oil and water well notes, because cementing quality difference and casing damage cause to annotate and adopt no correspondence, have a strong impact on the ordinary production of oil and water well.And conventional be that traditional plugging agent density of host is 1.88-1.90g/cm with G level oil well cement
3
, individual well construction working amount is big, and its main shutoff principle is stopped up for no pressure reduction physics, and consumption is wayward, and is relatively poor at zone of interest, and the excessive pollution that easily causes oil reservoir of consumption.
Summary of the invention
The invention provides a kind of oil and water well envelope and scurry leak stopping blocking agent and preparation method thereof, overcome the problem that above-mentioned prior art exists, its suspension stability is good, and rheological is good, and the set strength height is high temperature resistant, and plugging effect is good.
One of technical scheme of the present invention realizes by following measure: a kind of oil and water well envelope is scurried the leak stopping blocking agent, and it consists of by following raw materials quality part: 40 parts to 60 parts of XP plugging agents, 50 parts to 90 parts of G level oil well cements, 2.5 parts to 5 parts of blast furnace KZ micro mists, 0.2 part to 2.0 parts of borax, 100 parts to 110 parts in water.
Two of technical scheme of the present invention realizes by following measure: a kind of above-mentioned oil and water well envelope is scurried the preparation method of leak stopping blocking agent, it is undertaken by following step: at first the XP plugging agent host of requirement is scattered in the water of requirement and stirs, fully after the aquation, the borax that adds requirement, secondly the G level oil well cement and the blast furnace KZ micro mist that add requirement successively, and obtain the oil and water well envelope after fully stirring and scurry the leak stopping blocking agent.
The invention has the beneficial effects as follows: preparation is simple, easy construction, and is safe and reliable, the plugging strength height; It has good suspension stability, and initial viscosity is low, easily infusion, high temperature resistant, characteristics such as solidification intensity height, up and down the payzone that causes of cementing quality difference or casing damage is not corresponding because of perforation interval mainly to apply to oil and water well, can satisfy the requirement of oil and water well shutoff blowby; Implement well more than 90 in accumulation at present, obtained the effect that good envelope is scurried leak stopping, and improved water-injection efficiency.
Embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
Be further described below in conjunction with the present invention of embodiment.
Embodiment 1, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 40 parts to 60 parts of XP plugging agents, 50 parts to 90 parts of G level oil well cements, 2.5 parts to 5 parts of blast furnace KZ micro mists, 0.2 part to 2.0 parts of borax, 100 parts to 110 parts in water.
Embodiment 2, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 40 parts of XP plugging agents, 50 parts of G level oil well cements, 2.5 parts of blast furnace KZ micro mists, 0.2 part of borax, 100 parts in water.
Embodiment 3, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 60 parts of XP plugging agents, 90 parts of G level oil well cements, 5 parts of blast furnace KZ micro mists, 2.0 parts of boraxs, 110 parts in water.
Embodiment 4, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 40 parts of XP plugging agents, 90 parts of G level oil well cements, 2.5 parts of blast furnace KZ micro mists, 2.0 parts of boraxs, 100 parts in water.
Embodiment 5, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 60 parts of XP plugging agents, 50 parts of G level oil well cements, 5 parts of blast furnace KZ micro mists, 0.2 part of borax, 110 parts in water.
Embodiment 6, and this oil and water well envelope is scurried the leak stopping blocking agent and consisted of by following raw materials quality part: 50 parts of XP plugging agents, 70 parts of G level oil well cements, 3.5 parts of blast furnace KZ micro mists, 1.0 parts of boraxs, 105 parts in water.
Embodiment 7, above-described embodiment 1 to 6 obtains by following preparation method: at first the XP plugging agent host of requirement is scattered in the water of requirement and stirs, fully after the aquation, the borax that adds requirement, secondly the G level oil well cement and the blast furnace KZ micro mist that add requirement successively, and obtain the oil and water well envelope after fully stirring and scurry the leak stopping blocking agent.
In the present invention: the XP plugging agent is that Xinxiang, Henan Chemicals company limited is composite, operative norm: Q/QH23-2007; G level oil well cement is produced operative norm: GB10238-2005 for the cement mill, Tianshan Mountains; The KZ slag micropowder is produced operative norm: GB/T18046-2000 for Aug. 1st Steel Plant.
Above-described embodiment gained oil and water well envelope is scurried the leak stopping blocking agent use in the oil field, its effect is as follows:
Seal stoppage agent of the present invention with adopt at present the pure water mudding scurry the leak stopping product, have suspension stability, rheological is good, preparation is simple, easy construction, operating cost are low.General individual well is only scurried leak stopping blocking agent 2.5-4.0m with oil and water well envelope of the present invention
3
, do not have sedimentation after cutting infusion, and plain cement plugging agent individual well consumption is generally 10.0m
3
-30.0m
3
, a large amount of sedimentation cement granules are left at a jar end after the infusion.
Seal stoppage agent of the present invention solidifies back intensity height, and microdilatancy is few to formation contaminant, can satisfy the processing requirement that envelope is scurried leak stopping.Oil and water well envelope of the present invention is scurried the leak stopping blocking agent at the immediate vicinity of wellbore, less to oil layer pollution, and adopt perforation and acidifying technology just can separate depollution fully, and common plain cement plugging agent can enter stratum matrix, produced pollution intractable is stopped up oil well oil flow channel on every side.
Oil and water well of the present invention envelope is scurried the leak stopping blocking agent and all reached and surpass national standard (GB175-2007 and GB 10238-2005): 1, oil and water well of the present invention seals and scurries the leak stopping blocking agent and have good suspension stability, in bleed＜5%(10 hour); 2, under 25-150 ℃ of condition, can be controlled in set time between 6-30 hour; 3, to scurry the initial viscosity of leak stopping blocking agent low for oil and water well of the present invention envelope, is the 35s(Marsh funnel viscosimeter); 4, oil and water well envelope of the present invention is scurried the ultimate compression strength of leak stopping blocking agent: 0.8-1.5MPa; 5, oil and water well envelope of the present invention is scurried the density of leak stopping blocking agent: 1.45-1.55g/cm
3
Oil and water well envelope of the present invention is scurried the leak stopping blocking agent and has been applied to shutoff blowby well well more than 90, and the measure success ratio is 100%, has obtained good effect.
Claims (2)
1. an oil and water well envelope is scurried the leak stopping blocking agent, it is characterized in that consisting of by following raw materials quality part: 40 parts to 60 parts of XP plugging agents, 50 parts to 90 parts of G level oil well cements, 2.5 parts to 5 parts of blast furnace KZ micro mists, 0.2 part to 2.0 parts of borax, 100 parts to 110 parts in water.
2. an oil and water well according to claim 1 seals the preparation method who scurries the leak stopping blocking agent, it is characterized in that being undertaken by following step: at first the XP plugging agent host of requirement is scattered in the water of requirement and stirs, fully after the aquation, the borax that adds requirement, secondly the G level oil well cement and the blast furnace KZ micro mist that add requirement successively, and obtain the oil and water well envelope after fully stirring and scurry the leak stopping blocking agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311755 CN102504781B (en) | 2011-10-14 | 2011-10-14 | Oil and water well sealing and plugging agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311755 CN102504781B (en) | 2011-10-14 | 2011-10-14 | Oil and water well sealing and plugging agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102504781A CN102504781A (en) | 2012-06-20 |
| CN102504781B true CN102504781B (en) | 2013-08-28 |
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| CN 201110311755 Active CN102504781B (en) | 2011-10-14 | 2011-10-14 | Oil and water well sealing and plugging agent and preparation method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086967B (en) * | 2015-05-22 | 2017-12-05 | 中国石油天然气股份有限公司 | Channeling-preventing and blocking agent and construction method for blocking and blocking channeling by using same |
| CN105756650B (en) * | 2016-03-28 | 2018-06-01 | 中国石油天然气股份有限公司 | Method for realizing staged fracturing of horizontal well by adopting mixed temporary plugging agent to block tubular channeling |
| CN106082807B (en) * | 2016-06-15 | 2018-02-02 | 廊坊瑞澜石油技术有限公司 | Oil（Water）Well envelope is altered, leak stopping system prepares and application process |
| CN106800389B (en) * | 2016-12-31 | 2018-10-02 | 濮阳市华瑞通能源工程技术有限公司 | A kind of high wave making machine seal stoppage agent and preparation method thereof |
| CN110700785B (en) * | 2019-10-29 | 2022-01-14 | 中国石油化工股份有限公司 | Sedimentation and floating composite leaking stoppage repairing method for damaged casing |
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2011
- 2011-10-14 CN CN 201110311755 patent/CN102504781B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| "具有底水油藏高含水油井封堵技术探讨";李远林等;《新疆石油天然气》;20100630;第6卷(第2期);第83-85页 * |
| "新型堵漏剂XP-1封堵管外窜技术";赵玲莉;《新疆石油天然气》;20071231;第3卷(第4期);第55-59页 * |
| 李远林等."具有底水油藏高含水油井封堵技术探讨".《新疆石油天然气》.2010,第6卷(第2期), |
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| CN102504781A (en) | 2012-06-20 |
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