CN112724983A - Oil-gas field mud soil conditioner and preparation method and application thereof - Google Patents
Oil-gas field mud soil conditioner and preparation method and application thereof Download PDFInfo
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- CN112724983A CN112724983A CN202110001534.6A CN202110001534A CN112724983A CN 112724983 A CN112724983 A CN 112724983A CN 202110001534 A CN202110001534 A CN 202110001534A CN 112724983 A CN112724983 A CN 112724983A
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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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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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
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- C09K2101/00—Agricultural use
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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
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention discloses an oil and gas field mud soil conditioner and a preparation method and application thereof, wherein the preparation method of the oil and gas field mud soil conditioner comprises the following steps: 1) adding humic acid accounting for 1-3% of the mass of the waste slurry into the waste slurry; 2) adding the waste slurry treated in the step 1) into soil, wherein the addition amount of the waste slurry is 5-20% of the mass of the soil; 3) adding a pH regulator into the step 2), and controlling the pH value of the soil after slurry is added to be 8-8.5 to obtain an oil-gas field slurry soil conditioner; the method utilizes the waste mud and humic acid to be directly mixed with the soil to improve the soil, utilizes organic matters and nutrient elements contained in the waste mud to improve the soil, and adds potassium humate to be used as a soil water-retaining agent and a fertilizer-retaining agent in the improvement process to improve the soil structure and improve the soil fertility; the problem that the waste slurry is difficult to treat can be solved, and green and resource utilization of the waste slurry is realized.
Description
Technical Field
The invention belongs to the field of agriculture, and relates to an oil-gas field mud soil conditioner, and a preparation method and application thereof.
Background
The waste mud in oil and gas fields generally refers to waste produced in the drilling process, and because the waste contains substances such as clay, weighting materials, various chemical additives, drilling debris and the like, the waste mud can cause serious pollution to the surface environment and influence the growth and development of animals and plants if the waste mud is directly discharged without treatment.
At present, the problems of high treatment cost, long transportation distance and the like exist in the treatment of the waste slurry, and how to efficiently utilize the treated waste slurry is also an important problem, so that a green and economical waste slurry treatment mode is sought, the harmless and resource utilization of the waste slurry in the oil and gas field is realized, and the method has great practical significance.
Disclosure of Invention
The invention aims to provide a mud soil conditioner for an oil and gas field, a preparation method and application thereof, which solve the problem that waste mud is difficult to treat, realize green and resource utilization of the waste mud, and the prepared soil conditioner can be used for soil improvement of barren soil.
In order to achieve the purpose, the invention adopts the technical scheme that:
the preparation method of the mud soil conditioner for the oil and gas field specifically comprises the following steps:
1) adding humic acid accounting for 1-3% of the mass of the waste slurry into the waste slurry;
2) adding the waste slurry treated in the step 1) into soil, wherein the addition amount of the waste slurry is 5-20% of the mass of the soil;
3) adding a pH regulator into the step 2), and controlling the pH value of the soil after slurry is added to be 8-8.5 to obtain the oil and gas field slurry soil conditioner.
Further, the soil in the step 2) is at least yellow cotton soil or sandy loess.
Further, the pH regulator in the step 3) is desulfurized gypsum, and the addition amount of the desulfurized gypsum is 2-8 t% of the mass of the soil.
Compared with the prior art, the invention has the following advantages:
the method utilizes the waste mud and humic acid to be directly mixed with the soil to improve the soil, utilizes organic matters and nutrient elements contained in the waste mud to improve the soil, and adds potassium humate to be used as a soil water-retaining agent and a fertilizer-retaining agent in the improvement process to improve the soil structure and improve the soil fertility. Meanwhile, the plant root exudates and soil microorganisms can decompose organic pollutants in the slurry, reduce the harm of heavy metal ions and promote the growth of crops. The desulfurized gypsum is added to regulate the pH value of the soil, promote the metabolism of microorganisms in the soil and reduce the harm of the waste mud to the soil.
The method can solve the problem that the waste mud is difficult to treat, realize green and resource utilization of the waste mud, improve the soil of the barren soil, and have simple preparation process, convenient implementation and good practical application value.
The principle of the invention is as follows: the waste mud contains a large amount of polyacrylamide which is an excellent water-retaining agent, and also contains a large amount of bentonite, and the polyacrylamide and the bentonite can play a role in binding soil particles, so that the aggregate structure is increased, and the water and nutrient environment in soil is improved; the waste mud can increase nutrient elements in soil, low-concentration organic matters in the mud can promote the growth of crop seedlings, the addition of humic acid promotes soil granular structures, the soil structure is improved, the air permeability and the water permeability of the soil are increased, meanwhile, the salt content of the soil can be reduced, the harm of salt and alkali to the crop seedlings is reduced, and the germination rate is improved.
Drawings
FIG. 1 is a graph showing the effect of the slurry soil conditioner for oil and gas fields prepared in example 3 on the yield of corn
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention thereto.
The invention relates to a mud soil conditioner for oil and gas fields, a preparation method and application thereof, wherein the preparation method comprises the following steps:
1) adding a proper amount of humic acid into the waste slurry, wherein the addition amount of the humic acid is 1-3 wt%.
2) Directly adding the waste slurry treated in the step 1) into soil, and mixing in proportion; wherein the soil is yellow cotton soil and sandy loess, but not limited to the two kinds of soil; the addition amount of the waste slurry is 5-20 wt%.
3) Adding a proper amount of desulfurized gypsum into the step 2), and controlling the pH value of the soil after the slurry is added. Wherein the desulfurized gypsum is a pH regulator, the addition amount is 2-8 wt%, and the pH is controlled to be 8-8.5; if the pH value of the soil treated in the step 2) is 8-8.5, adding of desulfurized gypsum is not needed.
The invention is further illustrated by the following examples and figures.
Example 1
Adding 1 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 5 wt%. And then, adding 2 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 2
Adding 3 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 20 wt%. And then 8 wt% of desulfurized gypsum is added into the mixture, and the pH is controlled to be 8-8.5, so that the improvement of the soil is completed.
Example 3
2 wt% of humic acid is added into the waste mud, the waste mud after the humic acid is added is directly mixed with the yellow cotton soil, and the addition amount of the waste mud is 12.5 wt%. And then, adding 5 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 4
Adding 1 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 20 wt%. And then 8 wt% of desulfurized gypsum is added into the mixture, and the pH is controlled to be 8-8.5, so that the improvement of the soil is completed.
Example 5
Adding 3 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 20 wt%. And then, adding 5 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 6
2 wt% of humic acid is added into the waste mud, the waste mud after the humic acid is added is directly mixed with the yellow cotton soil, and the addition amount of the waste mud is 15 wt%. And then 6 wt% of desulfurized gypsum is added into the mixture, and the pH is controlled to be 8-8.5, so that the improvement of the soil is completed.
Example 7
2 wt% of humic acid is added into the waste mud, the waste mud after the humic acid is added is directly mixed with the yellow cotton soil, and the addition amount of the waste mud is 5 wt%. And then 6 wt% of desulfurized gypsum is added into the mixture, and the pH is controlled to be 8-8.5, so that the improvement of the soil is completed.
Example 8
Adding 3 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 10 wt%. And then 8 wt% of desulfurized gypsum is added into the mixture, and the pH is controlled to be 8-8.5, so that the improvement of the soil is completed.
Example 9
2 wt% of humic acid is added into the waste mud, the waste mud after the humic acid is added is directly mixed with the yellow cotton soil, and the addition amount of the waste mud is 18 wt%. And then adding 7 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 10
2 wt% of humic acid is added into the waste mud, the waste mud after the humic acid is added is directly mixed with the yellow cotton soil, and the addition amount of the waste mud is 20 wt%. And then, adding 3 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 11
Adding 3 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 12 wt%. And then adding 7 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
Example 12
Adding 3 wt% of humic acid into the waste mud, and directly mixing the waste mud with the humic acid with the yellow cotton soil, wherein the addition amount of the waste mud is 16 wt%. And then adding 7 wt% of desulfurized gypsum into the mixture, and controlling the pH value to be 8-8.5 to finish the improvement of the soil.
In order to represent the influence of the slurry soil conditioner of the oil and gas field on the yield increasing effect of the corn, a corn field experiment is carried out, three treatment groups are set, including a control group without slurry, an example 3 with humic acid and an example 3 without humic acid, each treatment group is 5 mu of land, the total area is 15 mu of land, the sowing is carried out in 5 months in 2019, the harvesting is carried out in 11 months in 2019, and the yield increasing result is shown in figure 1.
As can be seen from the figure, the yield of the corn in example 3 is 700 kg/mu, which is significantly higher than that of the control group and example 3 without humic acid. The yield of the example 3 is increased by 27 percent compared with the control group, and is increased by 14.8 percent compared with the example 3 without humic acid. The oil-gas field mud has certain promotion effect on the growth of the corn, and the addition of humic acid has more beneficial effect on the growth of the corn.
The present invention is described in detail with reference to the above embodiments, and those skilled in the art will understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (5)
1. The preparation method of the mud soil conditioner for the oil and gas field is characterized by comprising the following steps:
1) adding humic acid accounting for 1-3% of the mass of the waste slurry into the waste slurry;
2) adding the waste slurry treated in the step 1) into soil, wherein the addition amount of the waste slurry is 5-20% of the mass of the soil;
3) adding a pH regulator into the step 2), and controlling the pH value of the soil after slurry is added to be 8-8.5 to obtain the oil and gas field slurry soil conditioner.
2. The preparation method of the mud soil conditioner for oil and gas fields according to claim 1, characterized in that: the soil in the step 2) is at least yellow cotton soil or sandy loess.
3. The preparation method of the mud soil conditioner for oil and gas fields according to claim 1, characterized in that: the pH regulator in the step 3) is desulfurized gypsum, and the addition amount of the desulfurized gypsum is 2-8 t% of the mass of the soil.
4. An oil and gas field mud soil conditioner prepared according to the preparation method of claims 1-3.
5. The use of the oil and gas field mud soil conditioner of claim 4 in improving poor soil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110001534.6A CN112724983A (en) | 2021-01-04 | 2021-01-04 | Oil-gas field mud soil conditioner and preparation method and application thereof |
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| CN202110001534.6A CN112724983A (en) | 2021-01-04 | 2021-01-04 | Oil-gas field mud soil conditioner and preparation method and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182093A (en) * | 2007-12-07 | 2008-05-21 | 陈五岭 | Microbe harmless treatment method for oil-gas field waste slurry |
| CN101830614A (en) * | 2010-04-15 | 2010-09-15 | 中国石油集团川庆钻探工程有限公司 | Biological treatment method for waste mud in petroleum and natural gas exploration drilling work |
| CN103435241A (en) * | 2013-09-18 | 2013-12-11 | 中国石油集团川庆钻探工程有限公司 | Treatment process for drilling waste sludge in oil and gas field |
-
2021
- 2021-01-04 CN CN202110001534.6A patent/CN112724983A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182093A (en) * | 2007-12-07 | 2008-05-21 | 陈五岭 | Microbe harmless treatment method for oil-gas field waste slurry |
| CN101830614A (en) * | 2010-04-15 | 2010-09-15 | 中国石油集团川庆钻探工程有限公司 | Biological treatment method for waste mud in petroleum and natural gas exploration drilling work |
| CN103435241A (en) * | 2013-09-18 | 2013-12-11 | 中国石油集团川庆钻探工程有限公司 | Treatment process for drilling waste sludge in oil and gas field |
Non-Patent Citations (2)
| Title |
|---|
| 王茜等: "水基废弃钻井泥浆对粗质地土壤物理性质和甜菜生长的影响", 《农业资源与环境学报》 * |
| 翟文晰等: "黄土区废弃钻井液对苜蓿产量和品质的影响", 《钻井液与完井液》 * |
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