CN102212348B - Foam scrubbing agent with salt resistance and methanol resistance - Google Patents
Foam scrubbing agent with salt resistance and methanol resistance Download PDFInfo
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- CN102212348B CN102212348B CN 201010142972 CN201010142972A CN102212348B CN 102212348 B CN102212348 B CN 102212348B CN 201010142972 CN201010142972 CN 201010142972 CN 201010142972 A CN201010142972 A CN 201010142972A CN 102212348 B CN102212348 B CN 102212348B
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Abstract
The invention relates to a foam scrubbing agent with salt resistance and methanol resistance. The foam scrubbing agent comprises the following components by weight percent: 20-40% of cocoamidopropyl betaine, 45-65% of amine oxide, 5-20% of alpha-olefin sulfonate, 5-15% of triethanolamine, 0.2-2% of fluorocarbon surfactant and 0-5% of methanol, wherein the sum of the weight percentages of the components is 100%. By adopting the foam scrubbing agent, the drainage gas recovery problem of the methanol injection gas well with high salinity can be solved, the continuous and stable production of the gas well can be ensured and the open well rate can be increased.
Description
Technical field:
The present invention relates to a kind of for the gasser water pumping gas production, the salt tolerant, the methanol tolerance foam discharging agent that have simultaneously foam, dispersion, drag reduction, anti-salt, methanol tolerance ability.
Background technology:
Foam drainage gas recovery is a kind of drainage gas recovery that recent domestic develops rapidly, and its essence belongs to chemical draining, is to utilize the whipability in the tensio-active agent and a kind of new technology of growing up.Its principle is the effect that utilizes Sweet natural gas and be dissolved in the foaming agent of liquid in the well, form the foamy column that rises continuously, in well, carry out liquid and the solid particulate that is mixed in wherein, have tensio-active agent and the high molecular polymer of specific function by in the mineralized water of shaft bottom, introducing some, stirring by means of natural gas flow, fully contact with the shaft bottom hydrops, produce a large amount of more stable low-density resistance aqueous foams, it is mixed in the perpendicular flow process at gas-liquid two-phase, produce foam, disperse, drag reduction, the multiple physical-chemical effects such as washing, reduce in the pit shaft " slippage loss ", improve air-flow and vertically lift the liquid ability, reach the purpose of water pumping gas production.In fluid-discharge technology technology series, bubble row's technique is simple with its easy construction, equipment, easy construction, low, the applicable well depth scope of cost greatly, do not affect the advantages such as gas well is normally produced, Cheap highly effective.Technology of gas recovery by foam drainage is for the gas-water well of low pressure, little output, have construction easily, produce effects fast, cost is low, the advantages such as daily production that do not affect gas well, day by day is subject to common concern both domestic and external.Can foaming water discharge achieve success, and depends on to a great extent the performance of used pore forming material, therefore must set up effective foam discharging agent evaluation technique, and foam discharging agent is in optimized selection.
Summary of the invention:
The objective of the invention is to develop a kind of salt tolerant, methanol tolerance foam discharging agent, nontoxic and have good biodegradability, good with the compatibility of stratum liquid, have the function of protection reservoir when improving recovery ratio.
By a large amount of data works and previous experiments research work, determine when synthetic or compound methanol tolerance, anti-high salinity foam discharging agent system, mainly according to following route:
1. aspect salt resistant character, the methanol tolerance: select both sexes, nonionogenic tenside, and to the insensitive sulfonic acid of ionogen, acetate active group, perhaps utilize and contain amide group tensio-active agent etc. as far as possible.
2. utilize synergistic effect between the different surfaces promoting agent to design the surfactant complex system of anti-methyl alcohol, salt tolerant.
Single tensio-active agent is difficult to satisfy fully all properties requirement of Application Areas, must be by carrying out composite with other tensio-active agent, utilize the synergistic effect between the different surfaces promoting agent, fully satisfy the requirement of using, solve the various performance issues that applied environment complicated and changeable proposes.Described salt tolerant, each compositions in weight percentage content of methanol tolerance foam discharging agent are as follows:
Pore forming material:
AMONYL 380LC: 20～40%
Amine oxide: 45～65%
α olefin sulfonate (AOS): 5～20%
Suds-stabilizing agent:
Trolamine: 5～15%
Fluorocarbon surfactant: 0.2～2%
Methyl alcohol 0～5%
Add up to 100%
The invention effect:
The invention has the beneficial effects as follows: development and Application a kind of salt tolerant, methanol tolerance foam discharging agent, solved high salinity, annotated the problem of methyl alcohol gas well water pumping gas production, guarantee the gas well continuous and stable production, improve rate when driving a well.
Embodiment
The content of two aspects is mainly carried out in the evaluation of foam discharging agent, i.e. the mensuration of the evaluating and measuring of foam discharging agent foaming power and steady bubble ability and foam discharging agent liquid carry over.
Whipping agent foaming power and steady bubble ability performance evaluation: Ross-Miles method (Luo Shi Mil method)
The mensuration of pore forming material liquid carry over: the gas of certain flow rate is passed into test solution, form foam.The volume number of the liquid (methyl alcohol, You Heshui) that foamover goes out behind the mensuration certain hour is as measuring of whipping agent fluid-carrying capability.
The present invention is described in further detail below in conjunction with embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.
Embodiment 1
The consumption of each feed composition is as follows in the present embodiment foaming water discharge agent (code name SY-1):
AMONYL 380LC: 20%
Amine oxide: 65%
α olefin sulfonate (AOS): 5%
Trolamine: 9.8%
Fluorocarbon surfactant: 0.2%
Methyl alcohol 0
Add up to 100%
Embodiment 2
The consumption of each feed composition is as follows in the present embodiment foaming water discharge agent (code name SY-2):
AMONYL 380LC: 25%
Amine oxide: 55%
α olefin sulfonate (AOS): 10%
Trolamine: 7.0%
Fluorocarbon surfactant: 0.5%
Methyl alcohol 2.5%
Add up to 100%
Embodiment 3
The consumption of (code name SY-3) each feed composition is as follows in the present embodiment foaming water discharge agent:
AMONYL 380LC: 35%
Amine oxide: 45%
α olefin sulfonate (AOS): 12%
Trolamine: 5.0%
Fluorocarbon surfactant: 0.7%
Methyl alcohol: 2.3%
Add up to 100%
(1) experimental simulation water sample test
Laboratory configuration salinity is respectively 20000mg/L, 80000mg/L, 130000mg/L simulates mineralized water, carries out lab investigation.
A.20000mg/L mineralized water: take by weighing respectively 1.73g calcium chloride (CaCl
2), 1.17g magnesium chloride (MgCl
2), 5.27g sodium sulfate (Na
2SO
4), 11.83g sodium-chlor (NaCl) is in beaker, and being diluted to cumulative volume with dissolved in distilled water is 1L.Total mineralization is 20000mg/L (agents useful for same is chemical pure).
B.80000mg/L mineralized water: take by weighing respectively 6.93g calcium chloride (CaCl
2), 4.67g magnesium chloride (MgCl
2), 21.07g sodium sulfate (Na
2SO
4), 47.33g sodium-chlor (NaCl) is in beaker, and being diluted to cumulative volume with dissolved in distilled water is 1L.Total mineralization is 80000mg/L (agents useful for same is chemical pure).
C.130000mg/L mineralized water: take by weighing respectively 11.27g calcium chloride (CaCl
2), 7.58g magnesium chloride (MgCl
2), 34.24g sodium sulfate (Na
2SO
4), 76.91g sodium-chlor (NaCl) is in beaker, and being diluted to cumulative volume with dissolved in distilled water is 1L.Total mineralization is 130000mg/L (agents useful for same is chemical pure).
Experiment Data Records:
The contrast experiment data (condensate oil different dosages) of table 1 under 70 ℃
The contrast experiment data (methyl alcohol different dosages) of table 2 under 70 ℃
Can be found out by table 1, table 2: the salinity of Simulated Water, methanol content, condensate oil content all have certain impact to foaming water discharge agent.At 70 ℃, oil-containing and not containing under the condition of methyl alcohol not, when drug concentration was 5 ‰, three kinds of medicaments all had stronger foaming and fluid-carrying capability to the simulation mineralized water, and its fluid-carrying capability all reaches more than 80%.Mineralized water for containing methyl alcohol or condensate oil 20% also has preferably latherability, and its fluid-carrying capability also can reach more than 75%; For the mineralized water that contains methyl alcohol 40%, also have good latherability, its fluid-carrying capability also can reach more than 70%.
(2) certain gasser local water test
1. the local water water sample of production scene is analyzed, analysis draws this local water and also contains methyl alcohol 50%.
The results are shown in Table 3.
Table 3 gas well stratum water sample analytical results
2. test data the results are shown in Table 4.
Table 4 is measured (70 ℃) to certain gasser local water latherability and liquid carry over
(3) to the simultaneous test of certain gasser local water
With above-mentioned certain gasser local water, the laboratory contrasts SY-2, HG-1, foaming power and the fluid-carrying capability of three kinds of foam discharging agents of SC-B type in the gas well local water under identical experiment condition.Experimental data is as shown in table 5:
Contrast experiment's data (70 ℃) of table 5 SY-2, HG-1, SC-B type in local water
(4) compatibleness of foam discharging agent test
Investigate respectively this foam discharging agent for the impact of the compatibleness of different salinities, methyl alcohol, condensate oil content.Experimental result sees Table 6-table 8.
The test of table 6 salinity compatibility
| Salinity (10 4mg/L) | 0.5 | 2.0 | 5.0 | 8.0 | 10.0 |
| The compatibility situation | Without precipitation | Without precipitation | Without precipitation | Without precipitation | Without precipitation |
Annotate: foam discharging agent concentration 2%; 70～75 ℃ of probe temperatures; Test duration 12h.
The test of table 7 methyl alcohol compatibility
| Methanol content (%) | 10 | 20 | 30 | 40 | 50 |
| The compatibility situation | Without precipitation | Without precipitation | Without precipitation | Without precipitation | Without precipitation |
Annotate: tested media: mineralized water+methyl alcohol; Foam discharging agent concentration 2%; 70～75 ℃ of probe temperatures; Test duration 12h.
The test of table 8 condensate oil compatibility
| Condensate oil content (%) | 5 | 10 | 15 | 20 | 25 |
| The compatibility situation | Without precipitation | Without precipitation | Without precipitation | Without precipitation | Without precipitation |
Annotate: tested media: mineralized water+condensate oil; Foam discharging agent concentration 2%; 70～75 ℃ of probe temperatures; Test duration 12h.
Can analyze by the compatibility test, this foam discharging agent and methyl alcohol, salinity water and gas field local water have good compatibleness, occur without deposited phenomenon.
Claims (1)
1. a salt tolerant, methanol tolerance foam discharging agent, it is characterized in that: each compositions in weight percentage content is as follows:
AMONYL 380LC: 20 ~ 40%
Amine oxide: 45 ~ 65%
α olefin sulfonate: 5 ~ 20%
Trolamine: 5 ~ 15%
Fluorocarbon surfactant: 0.2 ~ 2%
Methyl alcohol: 0～5%
Add up to 100%.
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| CN 201010142972 CN102212348B (en) | 2010-04-07 | 2010-04-07 | Foam scrubbing agent with salt resistance and methanol resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010142972 CN102212348B (en) | 2010-04-07 | 2010-04-07 | Foam scrubbing agent with salt resistance and methanol resistance |
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| Publication Number | Publication Date |
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| CN102212348A CN102212348A (en) | 2011-10-12 |
| CN102212348B true CN102212348B (en) | 2013-04-24 |
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| CN 201010142972 Active CN102212348B (en) | 2010-04-07 | 2010-04-07 | Foam scrubbing agent with salt resistance and methanol resistance |
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676142B (en) * | 2012-05-28 | 2013-11-06 | 中国石油天然气股份有限公司 | Condensate oil foam discharging agent applied to natural gas extraction |
| CN102851015B (en) * | 2012-09-28 | 2014-12-24 | 四川仁智油田技术服务股份有限公司 | Foam drainage agent with high temperature resistance, high condensate oil resistance and hypersalinity resistance and preparation method |
| CN103897672B (en) * | 2012-12-27 | 2016-06-08 | 中国石油天然气集团公司 | Drilling well high resistance oily hair infusion |
| CN103694981B (en) * | 2013-11-05 | 2016-05-11 | 中国石油天然气股份有限公司 | A kind of foam lifting chemical agent dilution, its preparation method and application thereof |
| CN103666441B (en) * | 2013-12-18 | 2015-12-09 | 四川省博仁达石油科技有限公司 | A kind of acid fracturing multifunctional synergist and preparation method thereof |
| CN104357037A (en) * | 2014-11-10 | 2015-02-18 | 中国石油天然气股份有限公司 | Antifreezing foaming agent and preparation method thereof |
| CN105086980B (en) * | 2015-07-03 | 2017-12-19 | 中国石油天然气股份有限公司 | A kind of foam discharging agent for deep gas well water pumping gas production and preparation method thereof |
| CN105154053B (en) * | 2015-09-29 | 2018-03-13 | 中国石油天然气股份有限公司 | A kind of foam discharging agent and preparation method and application |
| CN106590573B (en) * | 2015-10-20 | 2019-07-05 | 中国石油化工股份有限公司 | Salt resistance water pumping gas production foam discharging agent composition and the preparation method and application thereof |
| CN106590571B (en) * | 2015-10-20 | 2019-07-05 | 中国石油化工股份有限公司 | The water pumping gas production foam discharging agent of the sulfonate containing diaryl |
| CN106590583B (en) * | 2015-10-20 | 2020-05-05 | 中国石油化工股份有限公司 | High-salinity-resistant foam scrubbing agent composition for drainage and gas recovery and preparation method and application thereof |
| CN106590574A (en) * | 2015-10-20 | 2017-04-26 | 中国石油化工股份有限公司 | Hypersalinity resistant foam scrubbing agent composition used for drainage gas recovery and preparation method and application thereof |
| CN105199701B (en) * | 2015-10-21 | 2018-10-02 | 西安长庆化工集团有限公司 | The foam discharging agent and preparation method thereof of high temperature resistance, anti-high salinity and condensate oil |
| CN106221687A (en) * | 2016-07-21 | 2016-12-14 | 中国石油天然气股份有限公司长庆油田分公司 | A kind of gas field foam drainage rod and preparation method thereof |
| CN106433594A (en) * | 2016-08-30 | 2017-02-22 | 西咸新区海创化工科技有限公司 | Anti-freezing foam drainage agent and preparation method thereof |
| CN106433597A (en) * | 2016-09-14 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Foaming drainage agent, preparation method and application |
| CN108148567A (en) * | 2018-02-11 | 2018-06-12 | 欧阳冬 | A kind of multi-functional foam discharging agent and its application |
| CN108822823A (en) * | 2018-06-15 | 2018-11-16 | 吉林石油集团兴业石油化学技术服务有限公司 | A kind of acid-resisting and oil-resisting oil recovery gas production foaming agent and preparation method thereof |
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