CN202228059U - Foaming agent experiment system for water drainage and gas production - Google Patents

Foaming agent experiment system for water drainage and gas production Download PDF

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Publication number
CN202228059U
CN202228059U CN2011204009401U CN201120400940U CN202228059U CN 202228059 U CN202228059 U CN 202228059U CN 2011204009401 U CN2011204009401 U CN 2011204009401U CN 201120400940 U CN201120400940 U CN 201120400940U CN 202228059 U CN202228059 U CN 202228059U
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China
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tank
foaming agent
gas
shaft
foamer
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CN2011204009401U
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曹光强
李文魁
李隽�
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The utility model discloses a drainage is adopted gas and is used foamer experimental system, drainage adopt gas and include with foamer experimental system: the air inlet and liquid inlet system simulates a shaft system; wherein the intake air inlet system comprises: the foaming agent injection device comprises a gas source (1), a foaming agent injection tank (12), a kerosene liquid tank (17), a liquid containing tank (18) and a stratum water tank (19); the simulated wellbore system comprises: the device comprises a simulated shaft (5), a graduated scale (6), an observation window (7), a protective cover (8) and a heating sheet (9), wherein the graduated scale (6), the observation window (7), the protective cover (8) and the heating sheet (9) are arranged on the wall of the simulated shaft (5); the gas source (1), the foaming agent injection tank (12), the kerosene liquid tank (17), the liquid containing tank (18) and the stratum water tank (19) are respectively connected with the simulation shaft (5) through valves.

Description

Foaming agent experiment system for water drainage and gas production
Technical Field
The utility model discloses a natural gas exploitation technique especially is about foamer high temperature high pressure experiment evaluation system for drainage gas production, and specific saying is a drainage gas production is with foamer experimental system.
Background
In order to select a high-efficiency foaming agent suitable for a specific gas field, three parameters of foaming capacity, foam stability and foam liquid carrying capacity of the foaming agent are focused besides general property evaluation.
The foaming agent experimental evaluation standard used in China at present adopts a foaming agent evaluation method for foam drainage and gas production (SY-T6465-2000). In this standard, foaming power and stability were evaluated by reference to "determination of foaming power of detergent" (Ross-Miles method) (GB/T13173.6-91), and foam liquid-carrying ability was evaluated by reference to "evaluation procedure for foaming agent for drilling fluid" (SY/T5350-91). The two experimental evaluation devices adopt glass instruments (a dropping liquid tube, a graduated tube and the like) and a heating mode of circulating water bath, pressure cannot be loaded in the evaluation process, and the experimental temperature range cannot exceed 100 ℃.
However, in experimental studies and field applications, it is found that the influence of pressure on the foaming ability, stability and liquid carrying performance of the foaming agent is very large, and the influence of temperature is only much concerned in the conventional evaluation method (the experimental temperature is below 100 ℃), but the influence of pressure is never considered. Therefore, the performance of the foaming agents with good performance, which are preferably selected by a conventional evaluation method, is greatly reduced after pressure is loaded, particularly when the pressure exceeds 3Mpa and the temperature exceeds 50 ℃, the foaming agents do not foam at all or foam with small foam height, in the foam drainage and gas production process wells implemented in various gas fields at present, the wells with the bottom pressure of more than 3Mpa and the temperature of more than 50 ℃ account for a high proportion, and the bottom pressure of some wells even is more than 10Mpa when foam drainage and water drainage are adopted. Thus, the prior art foamer evaluation methods would be preferred if the foamer were used in the well in such a location as to be poorly or even ineffective. Therefore, a new experimental device needs to be designed, an experimental evaluation device similar to the production environment in the field gas well is established, the experimental evaluation and optimization of the foaming agent are developed, the efficient and applicable foaming agent is screened for the field evaluation, the influence of the gas well water production on the yield is eliminated or reduced, and the development efficiency and the recovery ratio of the gas field are improved.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a drainage is adopted gas and is used foamer experimental system, drainage adopt gas and include with foamer experimental system: the air inlet and liquid inlet system simulates a shaft system; wherein
The inlet air inlet system comprises: the foaming agent injection device comprises a gas source (1), a foaming agent injection tank (12), a kerosene liquid tank (17), a liquid containing tank (18) and a stratum water tank (19);
the simulated wellbore system comprises: the device comprises a simulated shaft (5), a graduated scale (6), an observation window (7), a protective cover (8) and a heating sheet (9), wherein the graduated scale (6), the observation window (7), the protective cover (8) and the heating sheet (9) are arranged on the wall of the simulated shaft (5);
the gas source (1), the foaming agent injection tank (12), the kerosene liquid tank (17), the liquid containing tank (18) and the stratum water tank (19) are respectively connected with the simulation shaft (5) through valves.
Adopt the utility model discloses a foamer experimental system for drainage gas production has solved among the prior art can not loading pressure and temperature exceed 100 ℃ problem when the foamer is appraised foamer's foamability, stability and take liquid performance, makes the true environment that the experiment evaluation environment is more close to production gas well pit shaft to it has more guide and practical meaning to make the experiment evaluation result.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of the foaming agent experiment system for water drainage and gas production disclosed by the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a drainage is adopted gas with foaming agent experimental system, as shown in figure 1, do the utility model discloses a drainage is adopted gas with foaming agent experimental system schematic diagram, this experimental system mainly by admit air inlet liquid system, simulation pit shaft system, control and data acquisition system and cleaning system four bibliographic categories and divide and constitute, each system architecture and effect are as follows:
an air inlet and liquid inlet system: the device is composed of an air source 1, a booster pump 2, a advection pump 3, a foaming agent injection tank 12, a kerosene liquid tank 17, a liquid containing tank 18 and a stratum water tank 19, wherein the air source 1 can also be a nitrogen bottle, the kerosene liquid tank 17 and the stratum water tank 19 are respectively connected with a simulation shaft 5 through the advection pump 3, the air source 1 is connected with the booster pump 2 and is connected to the simulation shaft 5 through the booster pump 2. The function of the air inlet and liquid inlet system is to simulate the formation to produce natural gas, formation water and condensate oil on one hand and to simulate the well mouth to add foaming agent on the other hand in the experiment process.
Simulating a wellbore system: the foaming agent foaming simulation device is composed of five parts, namely a simulation shaft 5, a graduated scale 6, an observation window 7, a protection cover 8 and a heating sheet 9, wherein the graduated scale 6 is tightly attached to the outer wall of the simulation shaft 5, the observation window is arranged on the wall of the simulation shaft 5, the protection cover 8 covers the simulation shaft 5, the heating sheet 9 is tightly attached to the side wall of the simulation shaft 5, the simulation shaft system mainly simulates the pressure and the temperature of the production shaft, and various experimental phenomena are observed and the foaming height of a foaming agent is measured in an experiment.
The gas source 1, the foaming agent injection tank 12, the kerosene liquid tank 17, the liquid containing tank 18 and the formation water tank 19 are respectively connected with the simulation shaft 5 through valves.
Control and data acquisition system: the gas flowmeter is composed of a gas flowmeter 4, a temperature sensor 10, a pressure sensor 11, a back pressure controller 13, a computer 20, all valves and data cables, wherein the gas flowmeter 4, the temperature sensor 10, the pressure sensor 11 and the back pressure controller 13 are all connected with the computer 20, the gas flowmeter 4 is arranged between the booster pump 2 and the simulation shaft 5, the temperature sensor 10 is connected with the heating plate 9, the detection end of the pressure sensor 11 is inserted from the side wall of the simulation shaft 5, the other end of the pressure sensor 11 is connected with the computer 20, and the back pressure controller 13 is arranged at the top of the simulation shaft 5 to control the opening and closing of each valve and the temperature and pressure in the shaft in the experimental process and realize the acquisition of experimental data and the like.
A cleaning system: the device consists of a detergent tank 15, a vacuum pump 21 and various related manifolds, wherein the detergent tank 15 and the vacuum pump 21 are respectively connected with a foaming agent injection tank 12 through valves, and the cleaning system is mainly used for cleaning the whole experiment system after the experiment is finished.
The utility model discloses a foamer experimental system for drainage gas production mainly used evaluation liquid foamer foamability, stability and take liquid performance under the high temperature high pressure condition, concrete experiment operating procedure as follows:
first, evaluation experiment of foaming power and stability
1. Closing valves 3#, 4#, 5#, 11#, 7#, 10#, and 12# shown in fig. 1, opening valves 6#, 8#, and 9#, starting a vacuum pump 21, pumping the shaft 5 to negative pressure, closing the vacuum pump and the valve 8# after the operation is completed, and maintaining the negative pressure in the shaft 5 and the foaming agent injection tank 12;
2. closing the 6# valve, opening the 11# valve, sucking the prepared test solution into the shaft 5, closing the 11# valve after sucking the specified amount, and performing the test solution preparation method and the suction amount according to the standard SY-T6465-plus 2000;
3. keeping the 6#, 7#, 9# valves closed, opening the 10# valve, then slowly opening the 8# valve, sucking a specified amount of the test solution into the foaming agent injection tank 12, closing the 8# valve after the operation is finished, and performing the test solution preparation method and the sucking amount according to the standard SY-T6465-;
4. slowly opening 7#, balancing the pressure between the well bore 5 and the frother injection tank 12;
5. starting a heating power supply, simultaneously starting a booster compressor 2 and a 2# valve, adjusting a back pressure valve 13 to enable the pressure and the temperature in the shaft to rise to the average temperature and the average pressure of a gas well of a gas field to which the foaming agent is applied, closing the booster compressor and the booster compressor 2 after the conditions are met, keeping the temperature constant, standing for 5-10 minutes, and enabling the liquid level in the shaft 5 and the foaming agent injection tank 12 to be stable and free of foam;
6. opening 6#, injecting the test solution in the foaming agent injection tank 12 into the test solution in the shaft 5, observing and measuring the foam height at the beginning and after 5 minutes, filling an experimental data table, wherein the format of the data table refers to B2 in the standard SY-T6465-2000;
7. the power supply of the heating plate 9 is closed, the condenser 14 is started, the 12# valve is slowly opened, the pressure in the system is released, the valve 11# is opened after the pressure release is finished, and the test solution in the well is discharged;
8. according to the experimental steps of firstly, secondly, pumping the shaft into negative pressure, and sucking detergent from the detergent tank 15 to clean the whole system;
9. and (3) starting a power supply of the heating sheet 9, simultaneously starting a gas injection flow, and after the experiment system is dried, closing the power supply and the gas injection flow.
Second, evaluation experiment of dynamic liquid carrying property
1. 6#, 7#, 11# valves are closed, 1#, 2#, 3# valves are opened, a booster pump 2 is started, and a heating sheet 9 is started to supply power for heating, so that the pressure and the temperature in the shaft 5 reach the average level of evaluating gas wells of the gas field;
2. opening a No. 4 valve, a No. 5 valve, two advection pumps 3 and a booster pump 2, adjusting the flow rate, injecting water, condensate oil and nitrogen according to a certain proportion, and simultaneously opening a No. 6 valve to inject a prepared foaming agent; (if the gas field does not produce condensate, the advection pump for injecting condensate is not started)
3. Opening 12# and a condenser 14, collecting the liquid carried out into a measuring cylinder 16, closing a 12# valve after ten minutes, and simultaneously closing a booster pump 2;
4. and (3) closing the power supply of the heating sheet 9, opening the condenser 14 after the foam in the shaft disappears completely, slowly opening the 12# valve, releasing the pressure in the system, and opening the 11# valve after the pressure release is finished to discharge the test solution in the shaft.
5. And (3) evaluating the experimental operation steps 8 and 9 to clean and dry the experimental system according to foaming force and stability.
Adopt the utility model discloses a foamer experimental system for drainage gas production has solved among the prior art can not loading pressure and temperature exceed 100 ℃ problem when the foamer is appraised foamer's foamability, stability and take liquid performance, makes the true environment that the experiment evaluation environment is more close to production gas well pit shaft to it has more guide and practical meaning to make the experiment evaluation result.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (5)

1. The experimental system for the foaming agent for water drainage and gas production is characterized by comprising the following components in percentage by weight: the air inlet and liquid inlet system simulates a shaft system; wherein
The inlet air inlet system comprises: the foaming agent injection device comprises a gas source (1), a foaming agent injection tank (12), a kerosene liquid tank (17), a liquid containing tank (18) and a stratum water tank (19);
the simulated wellbore system comprises: the device comprises a simulated shaft (5), a graduated scale (6), an observation window (7), a protective cover (8) and a heating sheet (9), wherein the graduated scale (6), the observation window (7), the protective cover (8) and the heating sheet (9) are arranged on the wall of the simulated shaft (5);
the gas source (1), the foaming agent injection tank (12), the kerosene liquid tank (17), the liquid containing tank (18) and the stratum water tank (19) are respectively connected with the simulation shaft (5) through valves.
2. The water and gas drainage and foaming agent experiment system according to claim 1, wherein the air inlet liquid inlet system further comprises two advection pumps (3), and the kerosene liquid tank (17) and the formation water tank (19) are respectively connected with the simulated shaft (5) through the advection pumps (3).
3. The experimental system for a water and gas drainage foamer as claimed in claim 1, wherein said air intake system further comprises: and the gas source (1) is connected with the booster pump (2) and is connected to the simulated shaft (5) through the booster pump (2).
4. The water drainage and gas production foamer test system as set forth in claim 1, wherein said water drainage and gas production foamer test system further comprises: a control and data acquisition system; wherein,
the control and data acquisition system comprises: gas flowmeter (4), temperature sensor (10), pressure sensor (11), back pressure controller (13), computer (20), gas flowmeter (4), temperature sensor (10), pressure sensor (11), back pressure controller (13) all be connected with computer (20), gas flowmeter (4) set up in booster pump (2) and simulation pit shaft (5) between, temperature sensor (10) with heating plate (9) be connected, pressure sensor (11) probe the end and insert from the lateral wall of simulation pit shaft (5), another termination computer (20) of pressure sensor (11), back pressure controller (13) place simulation pit shaft (5) top in.
5. The water drainage and gas production foamer test system as set forth in claim 1, wherein said water drainage and gas production foamer test system further comprises: cleaning the system; wherein,
the cleaning system comprises: the foaming agent injection device comprises a detergent tank (15) and a vacuum pump (21), wherein the detergent tank (15) and the vacuum pump (21) are respectively connected with the foaming agent injection tank (12) through valves.
CN2011204009401U 2011-10-20 2011-10-20 Foaming agent experiment system for water drainage and gas production Expired - Fee Related CN202228059U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074497A (en) * 2013-03-29 2014-10-01 中国石油天然气股份有限公司 Indoor simulation test device for foam drainage of gas well
CN104678059A (en) * 2015-01-08 2015-06-03 中国石油天然气股份有限公司 System and method for evaluating foaming power and foam dynamic performance of foam scrubbing agent
CN106226029A (en) * 2016-07-15 2016-12-14 西南石油大学 A kind of visualization throttling experimental provision
CN108424759A (en) * 2018-04-17 2018-08-21 四川申和新材料科技有限公司 A kind of novel carbon dioxide foaming fracturing fluid and preparation method thereof for resisting 110 DEG C of high temperature
CN113484192A (en) * 2021-09-06 2021-10-08 广汉市福客科技有限公司 Evaluation device and evaluation method of sinking type delayed foaming agent
CN113982548A (en) * 2021-05-27 2022-01-28 北京中海沃邦能源投资有限公司永和分公司 Bubble row rod feeding device for natural gas well
CN114482936A (en) * 2022-02-22 2022-05-13 成都孚吉科技有限责任公司 Horizontal well drainage gas production visual simulation experiment device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074497A (en) * 2013-03-29 2014-10-01 中国石油天然气股份有限公司 Indoor simulation test device for foam drainage of gas well
CN104074497B (en) * 2013-03-29 2017-08-04 中国石油天然气股份有限公司 Indoor simulation test device for foam drainage of gas well
CN104678059A (en) * 2015-01-08 2015-06-03 中国石油天然气股份有限公司 System and method for evaluating foaming power and foam dynamic performance of foam scrubbing agent
CN106226029A (en) * 2016-07-15 2016-12-14 西南石油大学 A kind of visualization throttling experimental provision
CN106226029B (en) * 2016-07-15 2018-05-18 西南石油大学 A kind of visualization throttling experimental provision
CN108424759A (en) * 2018-04-17 2018-08-21 四川申和新材料科技有限公司 A kind of novel carbon dioxide foaming fracturing fluid and preparation method thereof for resisting 110 DEG C of high temperature
CN108424759B (en) * 2018-04-17 2020-11-06 四川申和新材料科技有限公司 110 ℃ high-temperature-resistant carbon dioxide foam fracturing fluid and preparation method thereof
CN113982548A (en) * 2021-05-27 2022-01-28 北京中海沃邦能源投资有限公司永和分公司 Bubble row rod feeding device for natural gas well
CN113484192A (en) * 2021-09-06 2021-10-08 广汉市福客科技有限公司 Evaluation device and evaluation method of sinking type delayed foaming agent
CN114482936A (en) * 2022-02-22 2022-05-13 成都孚吉科技有限责任公司 Horizontal well drainage gas production visual simulation experiment device
CN114482936B (en) * 2022-02-22 2024-08-09 成都孚吉科技有限责任公司 Visual simulation experiment device for drainage and gas production of horizontal well

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Granted publication date: 20120523

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