CN113292983A - Floating foam discharging rod for gas production of oil and gas field and preparation method thereof - Google Patents
Floating foam discharging rod for gas production of oil and gas field and preparation method thereof Download PDFInfo
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- CN113292983A CN113292983A CN202110659989.7A CN202110659989A CN113292983A CN 113292983 A CN113292983 A CN 113292983A CN 202110659989 A CN202110659989 A CN 202110659989A CN 113292983 A CN113292983 A CN 113292983A
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- 239000006260 foam Substances 0.000 title claims abstract description 81
- 238000007599 discharging Methods 0.000 title claims abstract description 56
- 238000007667 floating Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 13
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004202 carbamide Substances 0.000 claims abstract description 13
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 13
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000230 xanthan gum Substances 0.000 claims abstract description 13
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 13
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 13
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 13
- 239000002888 zwitterionic surfactant Substances 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 16
- 235000002639 sodium chloride Nutrition 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 9
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims description 4
- 229940073507 cocamidopropyl betaine Drugs 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- IXOCGRPBILEGOX-UHFFFAOYSA-N 3-[3-(dodecanoylamino)propyl-dimethylazaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(O)CS([O-])(=O)=O IXOCGRPBILEGOX-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 238000000643 oven drying Methods 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 33
- 230000033558 biomineral tissue development Effects 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005187 foaming Methods 0.000 abstract description 7
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000006467 substitution reaction Methods 0.000 description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002193 fatty amides Chemical class 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- -1 lauramidopropyl Chemical group 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
- C09K8/905—Biopolymers
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/92—Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
Abstract
The invention belongs to the technical field of natural gas exploitation, and particularly relates to a floating foam discharging rod for gas exploitation of an oil-gas field and a preparation method thereof. The foam discharging rod comprises the following components in parts by weight: 25-35 parts of zwitterionic surfactant, 15-25 parts of nonionic surfactant, 6-12 parts of xanthan gum, 10-15 parts of polyethylene glycol, 7-15 parts of sodium hypochlorite, 20-30 parts of urea, 7-12 parts of adhesive and 8-14 parts of water-soluble solid salt. The preparation method comprises the following steps: mixing a zwitterionic surfactant and a nonionic surfactant, and heating; adding xanthan gum, polyethylene glycol, sodium hypochlorite, urea, adhesive and water-soluble solid salt, and heating and drying; cooling, and pressing under 6-8Mpa to obtain the floating foam discharging rod. The invention optimizes the component formula of the foam discharging rod, improves the foaming, foam stabilizing and foam carrying capacities, and is suitable for the gas well foam discharging with high condensate oil content and higher mineralization degree.
Description
Technical Field
The invention belongs to the technical field of natural gas exploitation, and particularly relates to a floating foam discharging rod for gas exploitation of an oil-gas field and a preparation method thereof.
Background
With the extension of the development time of oil and gas wells, the formation pressure is reduced, and the operation measures such as the propulsion of edge and bottom water, fracturing, acidification and the like cause the generation of accumulated liquid in the well bottom and a well shaft, so that the yield of the gas well is continuously reduced, and even the phenomenon of flooding the well occurs. Aiming at the phenomenon, a drainage and gas recovery technology must be timely developed to solve the problem of gas well liquid drainage. The foam drainage gas production process is generally concerned with due to the advantages of convenience in construction, simple equipment, low cost, wide applicable well depth range, high yield, no influence on normal production of gas wells and the like, and is one of the most economical and effective methods for draining accumulated liquid in wells, improving the yield of natural gas and prolonging the production period of gas wells.
The foam water drainage gas production process is characterized in that a certain surfactant (foam discharging agent) capable of foaming when meeting water is injected from a well head to a well bottom, after the accumulated water at the well bottom is contacted with the foam discharging agent, a large amount of low-density water-containing foam is generated by means of stirring of natural gas flow and is carried to the ground from the well bottom along with the gas flow, and therefore the purpose of discharging the accumulated liquid in the well bore is achieved. The performance of the foam discharging agent becomes the key of the foam water discharging and gas producing technology, namely, the foam discharging agent has higher foaming capacity, foam stabilizing capacity and liquid carrying capacity under certain external conditions such as temperature and mineralization degree. The existing foam discharging agents are various, but the problems of high mineralization and poor condensate adaptability generally exist, the application effect is poor particularly for low-pressure and low-yield gas wells, and the practice of foam discharging shows that the foam discharging formula and the research on the foam performance thereof are an important problem in the foam discharging process.
Disclosure of Invention
In order to solve the problem that the existing foam discharging agent is not strong in adaptability to high-salinity and condensate oil, the invention provides the floating foam discharging rod for gas production of the oil and gas field, the component formula of the foam discharging rod is optimized, the foaming, foam stabilizing and foam carrying capacities are improved, the foam discharging rod is good in compatibility with formation water, and the foam discharging rod is suitable for gas well foam discharging with high condensate oil content and high mineralization degree.
The invention provides a floating foam discharging rod for gas production of an oil and gas field, which comprises the following components in parts by weight: 25-35 parts of zwitterionic surfactant, 15-25 parts of nonionic surfactant, 6-12 parts of xanthan gum, 10-15 parts of polyethylene glycol, 7-15 parts of sodium hypochlorite, 20-30 parts of urea, 7-12 parts of adhesive and 8-14 parts of water-soluble solid salt.
Further, the foam discharging rod comprises the following components in parts by weight: 30 parts of zwitterionic surfactant, 22 parts of nonionic surfactant, 8 parts of xanthan gum, 12 parts of polyethylene glycol, 10 parts of sodium hypochlorite, 25 parts of urea, 9 parts of adhesive and 10 parts of water-soluble solid salt.
Further, the zwitterionic surfactant is one or more of cocamidopropyl betaine, lauramidopropyl hydroxysultaine or dodecyl dimethyl betaine.
Further, the nonionic surfactant is one or two of fatty alcohol-polyoxyethylene ether or fatty amide-polyoxyethylene ether.
Further, the binder is carboxymethyl cellulose.
Further, the water-soluble solid salt is one or more of sodium chloride, potassium chloride and sodium sulfate.
Further, the preparation method of the foam row rod comprises the following steps:
(1) introducing the zwitterionic surfactant and the nonionic surfactant into a container according to a proportion, stirring until the zwitterionic surfactant and the nonionic surfactant are uniformly mixed, and heating to 40-60 ℃;
(2) adding xanthan gum, polyethylene glycol, sodium hypochlorite, urea, adhesive and water-soluble solid salt, stirring, heating to 65-75 deg.C, and oven drying;
(3) and after the mixed material is cooled to room temperature, putting the mixed material into a die of a press machine, and pressing the mixed material into a rod-shaped solid under the pressure of 6-8Mpa to obtain the floating foam discharging rod.
Further, the density of the foam discharging rod is 1.0-1.2g/cm3。
Furthermore, the diameter of the foam discharging rod is 65-72mm, and the length of the foam discharging rod is 40-60 cm.
The invention has the beneficial effects that:
the floating foam discharging rod for gas production of the oil and gas field provided by the invention selects the zwitterionic surfactant and the nonionic surfactant as foaming agents, the xanthan gum as foam stabilizers, the urea as a filler, the sodium hypochlorite as a gas production agent, and the polyethylene glycol, the adhesive and the water-soluble solid salt for compounding, so that the raw materials are convenient and easy to obtain, the component formula of the foam discharging rod is optimized, the floating foam discharging rod has obvious synergistic effect, the foaming, foam stabilizing and foam carrying capacities are improved, the floating foam discharging rod has good compatibility with formation water, is suitable for gas well foam discharging with high condensate content and high mineralization degree, the liquid discharging effect is greatly improved, and the gas production rate of a gas well is increased.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A floating foam row bar for gas production of oil and gas fields comprises the following components in parts by weight: 15 parts of cocamidopropyl betaine, 15 parts of lauramidopropyl hydroxysulfobetaine, 22 parts of fatty alcohol-polyoxyethylene ether, 8 parts of xanthan gum, 12 parts of polyethylene glycol, 10 parts of sodium hypochlorite, 25 parts of urea, 9 parts of carboxymethyl cellulose and 10 parts of sodium chloride.
The preparation method of the foam row bar comprises the following steps:
(1) introducing cocamidopropyl betaine, lauramidopropyl hydroxysultaine and fatty alcohol-polyoxyethylene ether into a container according to a proportion, stirring until the mixture is uniformly mixed, and heating to 52 ℃;
(2) adding xanthan gum, polyethylene glycol, sodium hypochlorite, urea, carboxymethyl cellulose and sodium chloride, stirring until the materials are uniformly mixed, heating to 70 ℃ until the materials are dried;
(3) and after the mixed material is cooled to room temperature, putting the mixed material into a die of a press machine, and pressing the mixed material into a rod-shaped solid under the pressure of 7Mpa to obtain the floating foam discharging rod.
Wherein the density of the foam discharging rod is 1.1g/cm3(ii) a The diameter of the foam row rod is 65mm, and the length is 50 cm.
Example 2
A floating foam row bar for gas production of oil and gas fields comprises the following components in parts by weight: 17 parts of laurylamidopropyl hydroxysulfobetaine, 15 parts of dodecyl dimethyl betaine, 22 parts of fatty amide polyoxyethylene ether, 11 parts of xanthan gum, 14 parts of polyethylene glycol, 13 parts of sodium hypochlorite, 30 parts of urea, 10 parts of carboxymethyl cellulose and 12 parts of potassium chloride.
The preparation method of the foam row bar comprises the following steps:
(1) introducing lauramidopropyl hydroxysulfobetaine, dodecyl dimethyl betaine and fatty amide polyoxyethylene ether into a container according to a proportion, stirring until the mixture is uniformly mixed, and heating to 55 ℃;
(2) adding xanthan gum, polyethylene glycol, sodium hypochlorite, urea, carboxymethyl cellulose and potassium chloride, stirring until the materials are uniformly mixed, heating to 75 ℃ until the materials are dried;
(3) and after the mixed material is cooled to room temperature, putting the mixed material into a die of a press machine, and pressing the mixed material into a rod-shaped solid under the pressure of 8Mpa to obtain the floating foam discharging rod.
Wherein the density of the foam discharging rod is 1.2g/cm3(ii) a The diameter of the foam row rod is 70mm, and the length is 55 cm.
Example 3
And (3) placing the foam discharging rods of the examples 1 and 2 in 70g/L mineralization degree solution, adding condensate oil, and performing a condensate oil resistance test, wherein the liquid carrying amount of the foam discharging rods of the example 1 is more than 120ml, the liquid carrying amount of the foam discharging rods of the example 2 is more than 130ml and is far higher than 15ml required by industrial standards, and the foam discharging rods show good condensate oil resistance.
The foam bars of example 1 and example 2 were placed in the same amount in 80g/L of mineralization solution and 3% o of distilled water emulsion solution, and tested for foaming capacity and foam stability, and the test results are shown in table 1:
TABLE 1 foam Bar foaming Capacity and foam stability test results
As can be seen from Table 1, the foam properties of the foam bars of examples 1 and 2 in distilled water and mineralized water are basically equivalent under the condition of the same addition amount of the foam bar, which shows that the foam bar of the invention has better mineralization resistance.
Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The floating foam row bar for gas production of oil and gas fields is characterized by comprising the following components in parts by weight: 25-35 parts of zwitterionic surfactant, 15-25 parts of nonionic surfactant, 6-12 parts of xanthan gum, 10-15 parts of polyethylene glycol, 7-15 parts of sodium hypochlorite, 20-30 parts of urea, 7-12 parts of adhesive and 8-14 parts of water-soluble solid salt.
2. The floating type foam discharging rod for gas production in oil and gas fields according to claim 1, which comprises the following components in parts by weight: 30 parts of zwitterionic surfactant, 22 parts of nonionic surfactant, 8 parts of xanthan gum, 12 parts of polyethylene glycol, 10 parts of sodium hypochlorite, 25 parts of urea, 9 parts of adhesive and 10 parts of water-soluble solid salt.
3. The floating foam discharging rod for gas production in oil and gas fields according to claim 1, wherein the zwitterionic surfactant is one or more of cocamidopropyl betaine, lauramidopropyl hydroxysultaine or dodecyl dimethyl betaine.
4. The floating foam discharging rod for gas production in oil and gas fields according to claim 1, wherein the nonionic surfactant is one or two of fatty alcohol-polyoxyethylene ether or fatty amide-polyoxyethylene ether.
5. The floating foam discharging rod for gas production in oil and gas fields according to claim 1, wherein the adhesive is carboxymethyl cellulose.
6. The floating foam discharging rod for gas production in oil and gas fields according to claim 1, wherein the water-soluble solid salt is one or more of sodium chloride, potassium chloride and sodium sulfate.
7. The preparation method of the floating foam discharging rod for gas production in the oil and gas field according to claim 1, which comprises the following steps:
(1) introducing the zwitterionic surfactant and the nonionic surfactant into a container according to a proportion, stirring until the zwitterionic surfactant and the nonionic surfactant are uniformly mixed, and heating to 40-60 ℃;
(2) adding xanthan gum, polyethylene glycol, sodium hypochlorite, urea, adhesive and water-soluble solid salt, stirring, heating to 65-75 deg.C, and oven drying;
(3) and after the mixed material is cooled to room temperature, putting the mixed material into a die of a press machine, and pressing the mixed material into a rod-shaped solid under the pressure of 6-8Mpa to obtain the floating foam discharging rod.
8. The method for preparing the floating foam discharging rod for gas production in the oil and gas field according to claim 7, wherein the density of the foam discharging rod is 1.0-1.2g/cm3。
9. The method for preparing the floating foam discharging rod for gas production in the oil and gas field according to claim 7, wherein the diameter of the foam discharging rod is 65-72mm, and the length of the foam discharging rod is 40-60 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110659989.7A CN113292983A (en) | 2021-06-15 | 2021-06-15 | Floating foam discharging rod for gas production of oil and gas field and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110659989.7A CN113292983A (en) | 2021-06-15 | 2021-06-15 | Floating foam discharging rod for gas production of oil and gas field and preparation method thereof |
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| CN113292983A true CN113292983A (en) | 2021-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999664A (en) * | 2021-11-01 | 2022-02-01 | 陕西延长石油（集团）有限责任公司 | Gas well foam lifting liquid drainage gas production material, preparation method and liquid drainage gas production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999664A (en) * | 2021-11-01 | 2022-02-01 | 陕西延长石油（集团）有限责任公司 | Gas well foam lifting liquid drainage gas production material, preparation method and liquid drainage gas production method thereof |
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