CN110903814A - Anti-leakage plugging suspension carrying agent - Google Patents
Anti-leakage plugging suspension carrying agent Download PDFInfo
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- CN110903814A CN110903814A CN201911321317.4A CN201911321317A CN110903814A CN 110903814 A CN110903814 A CN 110903814A CN 201911321317 A CN201911321317 A CN 201911321317A CN 110903814 A CN110903814 A CN 110903814A
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a leak-proof plugging suspension carrier, which comprises the following components in parts by weight: 0.1-6 parts of MMH positive electricity glue, 0.1-5 parts of triethanolamine, 0.3-5 parts of anhydrous polyalcohol, 0.1-3 parts of liquid sodium silicate, 0.1-5 parts of sodium alginate, 1-6 parts of carboxymethyl starch and 1-6 parts of hydroxypropyl guar gum; when in preparation, the components are added into a container in sequence according to the parts by weight at normal temperature and normal pressure, and are mixed and stirred uniformly to form a stable liquid product. The invention has wide raw material source, simple process and safe construction, has good suspension property when being added into the plugging slurry, has good carrying capacity, ensures that the high-concentration plugging slurry smoothly enters a leakage channel, and prevents solid-liquid separation caused by the sinking of a floating solid-phase material of the bridging plugging agent; the plugging agent can be widely applied to petroleum and geological drilling processes, and is particularly suitable for plugging construction of easily-crossing collapsed blocks and broken strata.
Description
Technical Field
The invention relates to the technical field of well drilling and leakage stoppage, in particular to a suspension carrying agent for leakage prevention and leakage stoppage.
Background
The conventional plugging agent adopted after the low-pressure stratum in the petroleum drilling is leaked generally adopts bentonite, polyacrylamide for drilling fluid and the like as a suspension carrying agent of the plugging slurry, and the additives for plugging play a role in the petroleum drilling operation, but have the following defects or shortcomings of poor ① suspension capacity, easy precipitation of the plugging agent, low ② carrying capacity, easy solid-liquid separation, easy delamination due to loss of stability of ③ plugging slurry and difficulty in being uniformly carried into the deep part of a leakage channel to directly influence the plugging effect, easy repeated leakage occurrence of ④, high consumption of plugging materials, long plugging time and high plugging cost, single performance of ⑤ plugging additives and easy repeated leakage occurrence of ⑥, poor suspension carrying performance, easy groove replacement, influence on pumping of the plugging slurry, influence on the plugging success rate, failure in plugging effect and extremely easy underground complexity caused by construction.
Disclosure of Invention
In order to effectively overcome or avoid the defects or shortcomings in the prior art, the invention provides a leak-proof plugging suspension carrier, which has high structural force and suspension carrying capacity; the plugging agent has good flow pattern, and is a laminar flow pattern; the solid-liquid mixing capability is good; weak scouring to the leakage well wall; the plugging effect is good when the plugging agent enters the leakage channel; the construction of plugging is safe and quick; can be combined with other plugging materials and then can be applied to plugging formulas with different properties.
The technical scheme of the invention is as follows: a leak-proof plugging suspension carrier comprises the following components in parts by weight: 0.1-6 parts of MMH positive electricity glue, 0.1-5 parts of triethanolamine, 0.3-5 parts of anhydrous polyalcohol, 0.1-3 parts of liquid sodium silicate, 0.1-5 parts of sodium alginate, 1-6 parts of carboxymethyl starch and 1-6 parts of hydroxypropyl guar gum.
The preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
The above technical solution can be further optimized as follows:
a leak-proof plugging suspension carrier comprises the following components in parts by weight: 0.1 part of MMH positive electricity glue, 0.1 part of triethanolamine, 0.3 part of anhydrous polymeric alcohol, 0.1 part of liquid sodium silicate, 0.1 part of sodium alginate, 1 part of carboxymethyl starch and 1 part of hydroxypropyl guar gum.
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 2 parts of MMH positive electricity glue, 1 part of triethanolamine, 1 part of anhydrous polymeric alcohol, 1 part of liquid sodium silicate, 2 parts of sodium alginate, 3 parts of carboxymethyl starch and 3 parts of hydroxypropyl guar gum.
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 5 parts of MMH positive electricity glue, 4 parts of triethanolamine, 4 parts of anhydrous polymeric alcohol, 2 parts of liquid sodium silicate, 3 parts of sodium alginate, 4 parts of carboxymethyl starch and 4 parts of hydroxypropyl guar gum.
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 6 parts of MMH positive electricity glue, 5 parts of triethanolamine, 5 parts of anhydrous polymeric alcohol, 3 parts of liquid sodium silicate, 5 parts of sodium alginate, 6 parts of carboxymethyl starch and 6 parts of hydroxypropyl guar gum.
The water content of the hydroxypropyl guar gum is less than 10%, the content of water insoluble substances is less than 8%, the apparent viscosity is not less than 85 mPa.s, and the apparent viscosity is 170s at 30 ℃ in an aqueous solution with the mass fraction of 1%-1Measured under the conditions of (1).
The purity of the MMH positive photoresist is more than or equal to 95 percent.
The application method of the leak-proof plugging suspension carrying agent comprises the step of adding the leak-proof plugging suspension carrying agent into plugging drilling fluid, wherein 0.1 to 5 tons of the leak-proof plugging suspension carrying agent is added into every 100 square of the plugging drilling fluid.
Further preferred is:
when the leakage-proof plugging suspension carrying agent is used, 0.1 ton of leakage-proof plugging suspension carrying agent is added into every 100 square of plugging drilling fluid; the anti-leakage plugging suspension carrier consists of the following components in parts by weight: 0.1 part of MMH positive electricity glue, 0.1 part of triethanolamine, 0.3 part of anhydrous polymeric alcohol, 0.1 part of liquid sodium silicate, 0.1 part of sodium alginate, 1 part of carboxymethyl starch and 1 part of hydroxypropyl guar gum.
When the leakage-proof plugging suspension carrying agent is used, the addition amount of the leakage-proof plugging suspension carrying agent is 1 ton per 100 square of plugging drilling fluid; the leak-proof plugging suspension carrying agent comprises the following components in parts by weight: 2 parts of MMH positive electricity glue, 1 part of triethanolamine, 1 part of anhydrous polymeric alcohol, 1 part of liquid sodium silicate, 2 parts of sodium alginate, 3 parts of carboxymethyl starch and 3 parts of hydroxypropyl guar gum.
When the leakage-proof plugging suspension carrying agent is used, 3 tons of leakage-proof plugging suspension carrying agent is added into every 100 prescriptions of plugging drilling fluid; the leak-proof plugging suspension carrying agent comprises the following components in parts by weight: 5 parts of MMH positive electricity glue, 4 parts of triethanolamine, 4 parts of anhydrous polymeric alcohol, 2 parts of liquid sodium silicate, 3 parts of sodium alginate, 4 parts of carboxymethyl starch and 4 parts of hydroxypropyl guar gum.
When the leakage-proof plugging suspension carrying agent is used, 5 tons of leakage-proof plugging suspension carrying agent is added into every 100 prescriptions of plugging drilling fluid; the anti-leakage plugging suspension carrier consists of the following components in parts by weight: 6 parts of MMH positive electricity glue, 5 parts of triethanolamine, 5 parts of anhydrous polymeric alcohol, 3 parts of liquid sodium silicate, 5 parts of sodium alginate, 6 parts of carboxymethyl starch and 6 parts of hydroxypropyl guar gum.
Compared with the prior art, the invention mainly has the following beneficial technical effects:
1. the suspension carrying agent has multiple functions, has suspension carrying performance and has the capability of repairing broken stratum well walls.
2. The plugging slurry has a laminar flexible flow pattern, and the scouring capability on the well wall of the stratum which is easy to leak and break is weak; has the functions of leakage prevention and leakage stoppage.
3. The plugging slurry is uniform and stable, is not easy to layer, prevents solid-liquid separation caused by floating solid-phase material sinking of the bridging agent, has stable performance, is easy to pump into a leakage passage stratum and enter the deep part of the leakage stratum, and avoids re-leakage.
4. The plugging agent is easy to pump into, does not damage pump parts, can be continuously constructed, improves the plugging success rate, is quick and safe to construct, and cannot cause underground complex accidents.
5. The plugging slurry has good compatibility, can be matched with other various plugging agents, and can improve the suspension stability and the plugging synergistic effect of the plugging slurry.
6. The application range is wide, the plugging agent can be suitable for preparing various plugging slurries, the performance is stable, and the suspension carrying effect is obvious; the plugging agent can be widely applied to petroleum and geological drilling processes, and is particularly suitable for plugging construction of easily-crossing collapsed blocks and broken strata.
7. No toxicity, no environmental pollution and easy harmless treatment.
8. Wide raw material source, simple process and safe construction.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 0.1 part of MMH positive electricity glue, 0.1 part of triethanolamine, 0.3 part of anhydrous polymeric alcohol, 0.1 part of liquid sodium silicate, 0.1 part of sodium alginate, 1 part of carboxymethyl starch and 1 part of hydroxypropyl guar gum.
The preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
When the leak-proof plugging suspending carrying agent is used, the leak-proof plugging suspending carrying agent is added into the plugging drilling fluid, and the addition amount is 0.1 ton of the leak-proof plugging suspending carrying agent per 100 square of the plugging drilling fluid, and the volume mass ratio is 0.1%.
The formula of the plugging drilling fluid comprises: 100 parts of well slurry or (100 parts of clear water + (6% -8%) of bentonite, 0.3% of soda, 0.2% of PAM + barite ] + (1% -2%) of sawdust + (3% -5%) of cottonseed hull + (2% -3%) of walnut shell +3% of crude walnut shell + (2% -4%) of plugging agent while drilling + (2% -3%) of mica. The percentage of the formulation is volume weight ratio, i.e. ton based on 100 square, for example (6% -8%) bentonite, i.e. 6-8 ton bentonite is added into 100 square of clear water; the formulations in the following examples are as defined in this example.
Example 2
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 2 parts of MMH positive electricity glue, 1 part of triethanolamine, 1 part of anhydrous polymeric alcohol, 1 part of liquid sodium silicate, 2 parts of sodium alginate, 3 parts of carboxymethyl starch and 3 parts of hydroxypropyl guar gum.
The preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
When the leak-proof plugging suspending carrying agent is used, the leak-proof plugging suspending carrying agent is added into plugging drilling fluid, and the addition amount is 1 ton of the leak-proof plugging suspending carrying agent added into every 100 square of the plugging drilling fluid according to the volume mass ratio.
The formula of the plugging drilling fluid comprises: 100 parts of well slurry or (100 parts of clear water + (6% -8%) of bentonite, 0.3% of soda, 0.2% of PAM + barite ] + (1% -2%) of sawdust + (3% -5%) of cottonseed hull + (2% -3%) of walnut shell +3% of crude walnut shell + (2% -4%) of plugging agent while drilling + (2% -3%) of mica.
Example 3
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 5 parts of MMH positive electricity glue, 4 parts of triethanolamine, 4 parts of anhydrous polymeric alcohol, 2 parts of liquid sodium silicate, 3 parts of sodium alginate, 4 parts of carboxymethyl starch and 4 parts of hydroxypropyl guar gum.
The preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
The leakage-proof plugging suspension carrying agent is added into the plugging drilling fluid, and the addition amount is 3 tons of leakage-proof plugging suspension carrying agent in each 100 prescriptions of the plugging drilling fluid, and the volume mass ratio is 3 percent.
The formula of the plugging drilling fluid comprises: 100 parts of well slurry or (100 parts of clear water + (6% -8%) of bentonite, 0.3% of soda, 0.2% of PAM + barite ] + (1% -2%) of sawdust + (3% -5%) of cottonseed hull + (2% -3%) of walnut shell +3% of crude walnut shell + (2% -4%) of plugging agent while drilling + (2% -3%) of mica.
Example 4
A leak-proof plugging suspension carrier comprises the following components in parts by weight: 6 parts of MMH positive electricity glue, 5 parts of triethanolamine, 5 parts of anhydrous polymeric alcohol, 3 parts of liquid sodium silicate, 5 parts of sodium alginate, 6 parts of carboxymethyl starch and 6 parts of hydroxypropyl guar gum.
The preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
The leak-proof plugging suspension carrying agent is added into the plugging drilling fluid, and the addition amount is 5 tons of the leak-proof plugging suspension carrying agent in each 100 prescriptions of the plugging drilling fluid, and the volume mass ratio is 5 percent.
The formula of the plugging drilling fluid comprises: 100 parts of well slurry or (100 parts of clear water + (6% -8%) of bentonite, 0.3% of soda, 0.2% of PAM + barite ] + (1% -2%) of sawdust + (3% -5%) of cottonseed hull + (2% -3%) of walnut shell +3% of crude walnut shell + (2% -4%) of plugging agent while drilling + (2% -3%) of mica. The particle size of the walnut shell is 0.5-1mm, and the particle size of the coarse walnut shell is 2-5 mm.
In the above examples 1 to 4, the components are all commercially available products, and the following products are selected in the examples of the present invention: the MMH positive photoresist is a short name of Mixed Metal Hydroxide (Mixed Metal Hydroxide), and is a Hydroxide consisting of two or more Metal ions; the MMH sol is MMH hydrosol prepared by taking MMH as dispersed phase water as a dispersion medium, the MMH positive electricity sol is commonly called on an oil field, and is produced by ocean chemical industry Co., Ltd in south of the river, and the purity of the product is more than or equal to 95%. Triethanolamine is colorless to light yellow transparent viscous liquid with slight ammonia smell, becomes colorless to light yellow cubic crystal system crystal at low temperature, and is produced by the chemical industry Limited company of the Jinan spring. The anhydrous polyalcohol is produced by Shandong Shunyuan petroleum science and technology limited company. The liquid sodium silicate mainly comprises silicon dioxide (SiO 2) and sodium oxide (Na 2O), is viscous liquid, and is produced by Jinhua Fenghui biological technology limited company in Jinan. The sodium alginate is white or light yellow powder, and almost odorless and tasteless; sodium alginate is soluble in water, and insoluble in organic solvent such as ethanol, diethyl ether, chloroform, etc.; dissolving in water to form viscous liquid; is produced by Shandong Haoyang seaweed industry Co. The carboxymethyl starch is produced by Shandong Shunyuan petroleum science and technology limited company. The hydroxypropyl guar gum has the water content of less than 10 percent, the content of water insoluble substances of less than 8 percent, the apparent viscosity of more than or equal to 85 mPa.s, the viscosity test conditions of 30 ℃, 170s-1 and 1 percent, and is produced by Rundah chemical Co., Ltd.
The leakproof plugging suspension carrier prepared in the above examples 1 to 4 was named TRS-FS type leakproof plugging suspension carrier by Dongyote Petroleum technologies, Inc.
The leak-proof plugging suspension carrier prepared in the above examples 1 to 4 has a good suspension carrying effect and plugging effect in field use, and the shear force of the leak-proof plugging suspension carrier is measured by using a direct-reading rotational viscometer according to a conventional drilling fluid performance measurement method in the field, which is detailed in table 1.
TABLE 1 characterization of technical Properties of leakproof plugging suspension carrier
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (9)
1. The utility model provides a leak protection leaking stoppage suspension carrier which characterized in that: the composition comprises the following components in parts by weight: 0.1-6 parts of MMH positive electricity glue, 0.1-5 parts of triethanolamine, 0.3-5 parts of anhydrous polyalcohol, 0.1-3 parts of liquid sodium silicate, 0.1-5 parts of sodium alginate, 1-6 parts of carboxymethyl starch and 1-6 parts of hydroxypropyl guar gum;
the preparation method comprises the following steps: the components are sequentially added into a container according to the parts by weight at normal temperature and normal pressure, and are uniformly mixed and stirred to form a stable mixture.
2. The leak-proof plugging suspension carrier agent as claimed in claim 1, wherein: the composition comprises the following components in parts by weight: 0.1 part of MMH positive electricity glue, 0.1 part of triethanolamine, 0.3 part of anhydrous polymeric alcohol, 0.1 part of liquid sodium silicate, 0.1 part of sodium alginate, 1 part of carboxymethyl starch and 1 part of hydroxypropyl guar gum.
3. The leak-proof plugging suspension carrier agent as claimed in claim 1, wherein: the composition comprises the following components in parts by weight: 2 parts of MMH positive electricity glue, 1 part of triethanolamine, 1 part of anhydrous polymeric alcohol, 1 part of liquid sodium silicate, 2 parts of sodium alginate, 3 parts of carboxymethyl starch and 3 parts of hydroxypropyl guar gum.
4. The leak-proof plugging suspension carrier agent as claimed in claim 1, wherein: the composition comprises the following components in parts by weight: 5 parts of MMH positive electricity glue, 4 parts of triethanolamine, 4 parts of anhydrous polymeric alcohol, 2 parts of liquid sodium silicate, 3 parts of sodium alginate, 4 parts of carboxymethyl starch and 4 parts of hydroxypropyl guar gum.
5. The leak-proof plugging suspension carrier agent as claimed in claim 1, wherein: the composition comprises the following components in parts by weight: 6 parts of MMH positive electricity glue, 5 parts of triethanolamine, 5 parts of anhydrous polymeric alcohol, 3 parts of liquid sodium silicate, 5 parts of sodium alginate, 6 parts of carboxymethyl starch and 6 parts of hydroxypropyl guar gum.
6. The leak-proof plugging suspension carrier according to any one of claims 1-5, whereinIn the following steps: the water content of the hydroxypropyl guar gum is less than 10%, the content of water insoluble substances is less than 8%, the apparent viscosity is not less than 85 mPa.s, and the apparent viscosity is 170s at 30 ℃ in an aqueous solution with the mass fraction of 1%-1Measured under the conditions of (1).
7. The leak-proof plugging suspension carrier agent according to claim 6, wherein: the purity of the MMH positive photoresist is more than or equal to 95 percent.
8. A use method of a leak-proof plugging suspension carrying agent is characterized in that: when in use, the leakage-proof plugging suspension carrying agent as defined in any one of claims 1-7 is added into the plugging drilling fluid, and the addition amount is 0.1-5 tons per 100 square of the leakage-proof plugging suspension carrying agent.
9. The use method of the leak-proof plugging suspension carrier according to claim 8, wherein: when the leak-proof plugging suspension carrier of claim 2 is used, the addition amount is 0.1 ton per 100 square of the plugging drilling fluid; when the leak-proof plugging suspension carrier of claim 3 is used, the addition amount is 1 ton per 100 square of the plugging drilling fluid; when the leakage-proof plugging suspension carrier is used, the addition amount is 3 tons of leakage-proof plugging suspension carrier per 100 prescriptions of leakage-proof drilling fluid; when the leak-proof plugging suspension carrier of claim 5 is used, the addition amount is 5 tons per 100 tons of leak-proof plugging suspension carrier.
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| CN201911321317.4A CN110903814A (en) | 2019-12-20 | 2019-12-20 | Anti-leakage plugging suspension carrying agent |
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| CN201911321317.4A CN110903814A (en) | 2019-12-20 | 2019-12-20 | Anti-leakage plugging suspension carrying agent |
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| CN102477287A (en) * | 2010-12-08 | 2012-05-30 | 深圳市钻通工程机械股份有限公司 | Drilling fluid and composite additive |
| CN106318353A (en) * | 2015-06-15 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Gel plugging agent and preparation method thereof |
| CN107337406A (en) * | 2017-07-19 | 2017-11-10 | 合肥广民建材有限公司 | Low temperature resistant waterproofing and leakage-stopping mortar of a kind of cold-resistant and preparation method thereof |
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| CN109135696A (en) * | 2018-10-13 | 2019-01-04 | 中石化石油工程技术服务有限公司 | High-temperature high-density drilling fluid with strong suspension stability and preparation method 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 |
| CN111285642A (en) * | 2018-12-10 | 2020-06-16 | 中国石油天然气股份有限公司 | Plugging agent, preparation method and application thereof |
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2019
- 2019-12-20 CN CN201911321317.4A patent/CN110903814A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477287A (en) * | 2010-12-08 | 2012-05-30 | 深圳市钻通工程机械股份有限公司 | Drilling fluid and composite additive |
| CN106318353A (en) * | 2015-06-15 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Gel plugging agent and preparation method thereof |
| CN107337406A (en) * | 2017-07-19 | 2017-11-10 | 合肥广民建材有限公司 | Low temperature resistant waterproofing and leakage-stopping mortar of a kind of cold-resistant and preparation method thereof |
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| CN111285642A (en) * | 2018-12-10 | 2020-06-16 | 中国石油天然气股份有限公司 | Plugging agent, preparation method and application thereof |
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