CN104529283A - Oilfield waste drilling mud solidified material - Google Patents
Oilfield waste drilling mud solidified material Download PDFInfo
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- CN104529283A CN104529283A CN201410770490.3A CN201410770490A CN104529283A CN 104529283 A CN104529283 A CN 104529283A CN 201410770490 A CN201410770490 A CN 201410770490A CN 104529283 A CN104529283 A CN 104529283A
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- drilling mud
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Abstract
The invention discloses an oilfield waste drilling mud solidified material, which is characterized in that the solidified material is composed of oilfield waste drilling mud, cement, sand, a solidifying agent and mixing water, and the solidified material comprises the following components in percentage by mass: 10.0-50.0% of mud, 10.0-50.0% of cement, 50.0-90.0% of sand, 0.01-10.0% of a solidifying agent, and 0.0-10.0% of mixing water. The solidified material disclosed by the invention is high in intensity, and can meet the requirements of construction materials on strength; and extracts are low in toxicity, therefore, the solidified material is safe and environmentally friendly, and realizes the innocent treatment and resource recycling of oilfield waste drilling mud.
Description
Technical field
The present invention relates to a kind for the treatment of technology of oilfield waste drilling mud, relate in particular to a kind of solidify material of oilfield waste drilling mud.
Background technology
Whether drilling mud can be rated as " blood " of oil drilling, mainly play effects such as carrying drilling cuttings, stabilizing borehole, balance down-hole formation pressure, cooling and lubricating drill bit, can carry out smoothly concerning drilling well work.Waste drilling mud is a kind of heterogeneous stable colloid be made up of clay, high-density weighting material, chemical additive, sewage, sump oil, drilling cuttings etc., complicated components, pollutent variation, wherein organism, heavy metal ion (chromium, arsenic, mercury, lead etc.) are very serious to the pollution of environment.
The annual newly drilled well of China several thousand mouthfuls, produces discarded slurry 200 side in every mouthful of well, then the whole nation is annual produces waste drilling mud all places up to a hundred.Traditional treatment process comprises nature discharge, re-injection bore hole annulus, MTC technology, solidification treatment etc., and aforesaid method exists that complex process, Technology are immature, high in cost of production limitation.For solidification processing method, existing open report, its Patent 200610047103.9 discloses and one uses by CaO, SiO
2, Al
2o
3, MgO composition solidifying agent technology that waste drilling mud is cured, solidification intensity is not less than 45KPa in 24 hours, and within 7 days, intensity reaches 3MPa.Patent 200510045234.9 discloses a kind of solidifying agent be made up of sulphoaluminate cement clinker, semi-hydrated gypsum powder, unslaked lime and polyacrylamide, it solidifies to drilling waste mud the consolidation thing 1 day ultimate compression strength obtained and is greater than 0.5MPa, and within 7 days, ultimate compression strength reaches 2MPa.It is generally on the low side that conventional curing technology solidifies to waste drilling mud the cured body intensity obtained, and cannot meet the requirement of strength of construction material, can only do landfill disposal, can not realize resource utilization and recycle.
Summary of the invention
The object of this invention is to provide a kind of oilfield waste drilling mud solidify material, this solidify material 7 days ultimate compression strength can reach 15Mpa, and extract concentration is low, safety and environmental protection, achieves the harmless treatment to oilfield waste drilling mud and resource utilization recycling.
Oilfield waste drilling mud solidify material of the present invention is made up of oilfield waste drilling mud, cement, sand, solidifying agent and mixing water, and the mass percent of each component is:
Mud: 10.0%-50.0%;
Cement: 10.0%-50.0%;
Sand: 50.0%-90.0%;
Solidifying agent: 0.01%-10.0%;
Mixing water: 0.0%-10.0%.
The moisture mass percent of described waste drilling mud is 30.0%-70.0%.
Described cement is PO42.5 cement or PO32.5 cement.
Described sand is river sand, Machine-made Sand, and fineness modulus is 1.0-3.5.
Described solidifying agent is made up of powder dispersion agent, gel breaker, sorbent material and hardening accelerator; Wherein, powder dispersion agent is powder polycarboxylic acid super-plasticizer; Gel breaker is the composition of the one or both in polymerize aluminum chloride and polyacrylamide; Sorbent material is the composition of the one or both in sepiolite and terra alba; Hardening accelerator is the composition of one or more in calcium chloride, sodium sulfate and Sodium Nitrite; The composition mass percent of each component is:
Powder dispersion agent: 1.0%-50.0%;
Gel breaker: 1.0%-80.0%;
Sorbent material: 5.0%-40.0%;
Hardening accelerator: 10.0%-30.0%.
Described oilfield waste drilling mud solidify material, is characterized in that its 7 days ultimate compression strength are greater than 15MPa, can meet the requirement of strength of material of construction; Solidify material extract COD≤100 mg/L, hexavalent chromium concentration≤0.1 mg/L, total chromium concn≤2.0 mg/L, petroleum-type concentration≤5.0 mg/L, solidify material safety and environmental protection.
The percentage composition of oilfield waste drilling mud solidify material provided by the invention is through that strict design obtains, wherein as the cement of glue material with can give security for the intensity of cured body as the sand gathered materials, it is dispersed that dispersion agent in solidifying agent can ensure that mud realizes in cured body, and can not reunite and affect the structural strength of cured body, gel breaker can be broken the stable of mud colloid and contribute to its dispersion, the seizure that sorbent material contributes to heavy metal ion is sealed up for safekeeping, and hardening accelerator can improve the strength development speeds of cured body.Solidify material extract concentration provided by the invention is low, safety and environmental protection, and intensity is high, can meet the requirement of building operation to the strength of materials.The Realization of Product form of cured body can square brick, kerbstone etc., and specific form can be determined according to demand.
Embodiment
The invention provides a kind of oilfield waste drilling mud solidify material, it is characterized in that solidify material is made up of oilfield waste drilling mud, cement, sand, solidifying agent and mixing water, the mass percent of each component is: mud: 10.0%-50.0%; Cement: 10.0%-50.0%; Sand: 50.0%-90.0%; Solidifying agent: 0.01%-10.0%; Mixing water: 0.0%-10.0%.
In following examples, the moisture mass percent of mud is 50.0%, and cement is PO42.5, sand fineness modulus 3.0, solidifying agent be HA-1 and HA-2, HA-1 consist of powder dispersion agent 20.0%, gel breaker 30.0%, sorbent material 40.0%, hardening accelerator 10.0%; HA-2 consists of powder dispersion agent 30.0%, gel breaker 20.0%, sorbent material 20.0%, hardening accelerator 30.0%.
Embodiment 1
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-1: mixing water=10%:10%:70%:1%:9%, i.e. 10kg:10kg:70kg:1kg:9kg.Mud, cement, sand and solidifying agent are mixed, then adds mixing water and stir 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Embodiment 2
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-2: mixing water=10%:10%:70%:1%:9%, i.e. 10kg:10kg:70kg:1kg:9kg.Mud, cement, sand and solidifying agent are mixed, then adds mixing water and stir 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Embodiment 3
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-1: mixing water=20%:20%:59%:1%:0%, i.e. 20kg:20kg:59kg:1kg:0kg.Solid material is mixed, stirs 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Embodiment 4
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-2: mixing water=20%:20%:59%:1%:0%, i.e. 20kg:20kg:59kg:1kg:0kg.Solid material is mixed, stirs 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Embodiment 5
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-1: mixing water=30%:30%:39%:1%:0%, i.e. 30kg:30kg:39kg:1kg:0kg.Solid material is mixed, stirs 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Embodiment 6
The proportioning of oilfield waste drilling mud solidify material is: mud: cement: sand: solidifying agent HA-2: mixing water=30%:30%:39%:1%:0%, i.e. 30kg:30kg:39kg:1kg:0kg.Solid material is mixed, stirs 10 minutes.Discharging, adopts the mode of compression moulding to be prepared into the sample block of 10cm × 10cm × 10cm size, natural curing the solidify material mixed.
Implementation result
In above-described embodiment the intensity of cured body and the test result of extract as follows:
The cured body ultimate compression strength of 7 days reaches more than 15.0MPa, meets the requirement of construction material to intensity; Meanwhile, the concentration of extract is low, safety and environmental protection.
Above embodiment is only described the preferred embodiment of the present invention, not limits invention scope.Under not departing from the present invention and designing the prerequisite of spirit, this area engineering technical personnel, to the various improvement made the technical scheme of invention and distortion, all should fall in protection domain that claims of the present invention determine.
Claims (6)
1. an oilfield waste drilling mud solidify material, is characterized in that this solidify material is made up of oilfield waste drilling mud, cement, sand, solidifying agent and mixing water, and the mass percent of each component is:
Mud: 10.0%-50.0%;
Cement: 10.0%-50.0%;
Sand: 50.0%-90.0%;
Solidifying agent: 0.01%-10.0%;
Mixing water: 0.0%-10.0%.
2. oilfield waste drilling mud solidify material according to claim 1, is characterized in that the moisture mass percent of described waste drilling mud is 30.0%-70.0%.
3. oilfield waste drilling mud solidify material according to claim 1, is characterized in that described cement is PO42.5 cement or PO32.5 cement.
4. oilfield waste drilling mud solidify material according to claim 1, it is characterized in that described sand is river sand, Machine-made Sand, fineness modulus is 1.0-3.5.
5. oilfield waste drilling mud solidify material according to claim 1, is characterized in that described solidifying agent is made up of powder dispersion agent, gel breaker, sorbent material and hardening accelerator; Wherein, powder dispersion agent is powder polycarboxylic acid super-plasticizer; Gel breaker is the composition of the one or both in polymerize aluminum chloride and polyacrylamide; Sorbent material is the composition of the one or both in sepiolite and terra alba; Hardening accelerator is the composition of one or more in calcium chloride, sodium sulfate and Sodium Nitrite; The composition mass percent of each component is:
Powder dispersion agent: 1.0%-50.0%;
Gel breaker: 1.0%-80.0%;
Sorbent material: 5.0%-40.0%;
Hardening accelerator: 10.0%-30.0%.
6. oilfield waste drilling mud solidify material according to claim 1, is characterized in that its 7 days ultimate compression strength are greater than 15MPa; Solidify material extract COD≤100 mg/L, hexavalent chromium concentration≤0.1 mg/L, total chromium concn≤2.0 mg/L, petroleum-type concentration≤5.0 mg/L.
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| CN201410770490.3A CN104529283B (en) | 2014-12-15 | 2014-12-15 | A kind of oilfield waste drilling mud curing materials |
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| CN201410770490.3A CN104529283B (en) | 2014-12-15 | 2014-12-15 | A kind of oilfield waste drilling mud curing materials |
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| CN104529283B CN104529283B (en) | 2016-08-24 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776780A (en) * | 2016-03-07 | 2016-07-20 | 南京乾庚新材料科技有限公司 | Shale gas well drilling waste-oil-based mud curing material |
| CN106561334A (en) * | 2016-11-08 | 2017-04-19 | 中国石油大学(北京) | Well drilling solid-phase waste disposal composition and application thereof |
| CN106915877A (en) * | 2017-03-06 | 2017-07-04 | 邹立夫 | One kind pollution greasy filth inorganic agent and its application method |
| CN108439927A (en) * | 2018-04-11 | 2018-08-24 | 湖北工业大学 | A kind of drilling mud curing materials prepared by wet grinding |
| CN108484064A (en) * | 2018-04-04 | 2018-09-04 | 盐城工学院 | A method of preparing greasy filth curing agent using steel slag particle |
| CN108531188A (en) * | 2018-04-28 | 2018-09-14 | 中国石油天然气集团有限公司 | A kind of inorganic agent and preparation method thereof of water-base drilling fluid drilling cuttings |
| CN110903016A (en) * | 2019-11-01 | 2020-03-24 | 四川格英达环保科技有限公司 | Drilling water-based mud drying agent |
| CN112552010A (en) * | 2020-12-31 | 2021-03-26 | 上海三瑞高分子材料股份有限公司 | Curing material for foundation treatment |
| CN112794590A (en) * | 2020-12-31 | 2021-05-14 | 重庆地质矿产研究院 | Shale gas well drilling waste oil-based mud curing material |
| CN115557738A (en) * | 2022-10-24 | 2023-01-03 | 宁夏新大地环保科技工程有限公司 | Roadbed filling material and manufacturing method thereof |
| CN115611569A (en) * | 2021-07-13 | 2023-01-17 | 中国石油化工股份有限公司 | Roadbed pavement material modified based on waste drilling mud, preparation method and application |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776780A (en) * | 2016-03-07 | 2016-07-20 | 南京乾庚新材料科技有限公司 | Shale gas well drilling waste-oil-based mud curing material |
| CN106561334A (en) * | 2016-11-08 | 2017-04-19 | 中国石油大学(北京) | Well drilling solid-phase waste disposal composition and application thereof |
| CN106915877A (en) * | 2017-03-06 | 2017-07-04 | 邹立夫 | One kind pollution greasy filth inorganic agent and its application method |
| CN108484064A (en) * | 2018-04-04 | 2018-09-04 | 盐城工学院 | A method of preparing greasy filth curing agent using steel slag particle |
| CN108439927A (en) * | 2018-04-11 | 2018-08-24 | 湖北工业大学 | A kind of drilling mud curing materials prepared by wet grinding |
| CN108531188B (en) * | 2018-04-28 | 2020-09-04 | 中国石油天然气集团有限公司 | Water-based drilling fluid drill cutting treating agent and preparation method thereof |
| CN108531188A (en) * | 2018-04-28 | 2018-09-14 | 中国石油天然气集团有限公司 | A kind of inorganic agent and preparation method thereof of water-base drilling fluid drilling cuttings |
| CN110903016A (en) * | 2019-11-01 | 2020-03-24 | 四川格英达环保科技有限公司 | Drilling water-based mud drying agent |
| CN112552010A (en) * | 2020-12-31 | 2021-03-26 | 上海三瑞高分子材料股份有限公司 | Curing material for foundation treatment |
| CN112794590A (en) * | 2020-12-31 | 2021-05-14 | 重庆地质矿产研究院 | Shale gas well drilling waste oil-based mud curing material |
| CN115611569A (en) * | 2021-07-13 | 2023-01-17 | 中国石油化工股份有限公司 | Roadbed pavement material modified based on waste drilling mud, preparation method and application |
| CN115611569B (en) * | 2021-07-13 | 2024-01-02 | 中国石油化工股份有限公司 | Roadbed and pavement material modified based on drilling waste mud, preparation method and application |
| CN115557738A (en) * | 2022-10-24 | 2023-01-03 | 宁夏新大地环保科技工程有限公司 | Roadbed filling material and manufacturing method thereof |
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