CN202560205U - Device for anaerobic preparation and anaerobic preservation oil field injection system - Google Patents

Device for anaerobic preparation and anaerobic preservation oil field injection system Download PDF

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Publication number
CN202560205U
CN202560205U CN2012202352321U CN201220235232U CN202560205U CN 202560205 U CN202560205 U CN 202560205U CN 2012202352321 U CN2012202352321 U CN 2012202352321U CN 201220235232 U CN201220235232 U CN 201220235232U CN 202560205 U CN202560205 U CN 202560205U
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China
Prior art keywords
anaerobism
injection
rubber tube
oil
bottle
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Inventor
纪海龙
王洪涛
张晓晨
孙琦
赵劲毅
李佰广
贾凌志
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Petrochina Co Ltd
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
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Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
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Abstract

The utility model relates to a device for an anaerobic preparation and anaerobic preservation oil field injection system. The device for the anaerobic preparation and anaerobic preservation oil field injection system comprises a vacuum pump, a first conical bottle, a second conical bottle, a first three-way valve, a second three-way valve, a third conical bottle, a bucket, a nitrogen bag, an ampoule bottle and a blowtorch, wherein the vacuum pump, the first conical bottle, the second conical bottle and the first three-way valve are connected through a first rubber pipe channel, the first three-way valve and the second three-way valve are connected through a second rubber pipe channel, the first three-way valve and the third conical bottle are connected through a third rubber pipe channel, the second three-way valve and the third conical bottle are connected through a fourth rubber pipe channel, the nitrogen bag and the third conical bottle are connected through a fifth rubber pipe channel, the bucket and the third conical bottle are connected through a sixth rubber pipe channel, the second three-way valve and the ampoule bottle are connected through a seventh rubber pipe channel, and the blowtorch is arranged on a bottle neck portion of the ampoule bottle. The device for the anaerobic preparation and anaerobic preservation oil field injection system can control dissolved oxygen in a lower degree during preparation and preservation process, and enables evaluation results to be more accurate.

Description

A kind of anaerobism preparation and anaerobism are preserved the device of oil field injection system
Technical field
The utility model relates to the device of a kind of anaerobism preparation and anaerobism preservation oil field injection system, belongs to technical field of petroleum extraction.
Background technology
The oil reservoir in oil field is an anaerobic environment; The character of injection system in underground anaerobic environment can be different from the sudden and violent oxygen environment in ground; Therefore adopt the anaerobism evaluation method that the character of oil field injection system is estimated, resulting result can more approach actual value, for field produces provides accurate data.
In recent years, anaerobism evaluation methods different on the oil field are widely used, and the most frequently used evaluation method step is following:
1,, adopt degassing method to obtain the anaerobism sewage that the preparation injection system is used with the Plastic Drum that is full of nitrogen;
2, in anaerobic box, prepare injection system, and branch installs in a plurality of tool plug graduated cylinders;
3, from anaerobic box, take out tool plug graduated cylinder, preserve with putting into 45 ℃ of insulating boxs behind the graduated cylinder plug of sealing with wax;
4, every at a distance from tool plug graduated cylinder of special time taking-up, put into anaerobic box and carry out performance and estimation of stabilitys thereof such as the viscosity of oil field injection system under the anaerobic environment, interfacial tension.
The main deficiency of the method is: 2nd, 3 steps.In the 2nd step,, in the process of exhaust inflated with nitrogen, have a certain amount of oxygen and remain in the anaerobic box and can't extract out fully because the anaerobic box volume is bigger; Carry out in the injection system formulation operations process stretching into arm, owing to the seal reason also can make entering part oxygen in the anaerobic box, this causes in the injection system process for preparation, and system incorporates oxygen.In the 3rd step, seal with wax tight or when in 45 ℃ of insulating boxs, preserving,, all can make injection system advance oxygen because the coefficient of thermal expansion difference causes sealing damage.
Therefore, a kind of device that can under anaerobic environment, prepare and preserve the oil field injection system of research and development is one of this area problem demanding prompt solution.
The utility model content
For solving the problems of the technologies described above; The purpose of the utility model is to provide a kind of anaerobism preparation and anaerobism to preserve the device of oil field injection system; Through adopting this device can the dissolved oxygen amount of oil field injection system in preparation and preservation process be controlled at lower degree, make evaluation result more accurate.
For achieving the above object; The utility model provides a kind of anaerobism preparation and anaerobism to preserve the device of oil field injection system; It is characterized in that; The device that this anaerobism preparation and anaerobism are preserved the oil field injection system comprises: vacuum pump, first conical flask, second conical flask, first three way cock, second three way cock, third hand tap shape bottle, bucket, nitrogen bag, ampoule bottle and blowtorch, wherein
Said vacuum pump, said first conical flask, said second conical flask are connected through the first rubber tube passage with said first three way cock;
Said first three way cock is connected through the second rubber tube passage with said second three way cock;
Said first three way cock is connected through the 3rd rubber tube passage with said third hand tap shape bottle;
Said second three way cock is connected through the 4th rubber tube passage with said third hand tap shape bottle;
Said nitrogen bag is connected through the 5th rubber tube passage with said third hand tap shape bottle;
Said bucket is connected through the 6th rubber tube passage with said third hand tap shape bottle;
Said second three way cock is connected through the 7th rubber tube passage with said ampoule bottle;
Said blowtorch is located at the neck part of said ampoule bottle.
Above-mentioned anaerobism preparation and anaerobism in that the utility model provides are preserved in the device of oil field injection system, and preferably, the bottom of said first three way cock and said third hand tap shape bottle is connected through the 3rd rubber tube passage.
Above-mentioned anaerobism preparation and anaerobism in that the utility model provides are preserved in the device of oil field injection system, and preferably, said third hand tap shape bottle is provided with the threeway plug.
In the device of above-mentioned anaerobism preparation that the utility model provides and anaerobism preservation oil field injection system, preferably, said second three way cock is connected through the 4th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
In the device of above-mentioned anaerobism preparation that the utility model provides and anaerobism preservation oil field injection system, preferably, said nitrogen bag is connected through the 5th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
In the device of above-mentioned anaerobism preparation that the utility model provides and anaerobism preservation oil field injection system, preferably, said bucket is connected through the 6th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
Injection system is meant the chemical agent solution of using in the tertiary oil production in oil field, can be polymer solution or ternary composite oil-displacing system.
Above-mentioned anaerobism preparation and anaerobism in that the utility model provides are preserved in the device of oil field injection system, and vacuum pump is used to vacuumize, and sewage CaCl is housed in first conical flask 2First conical flask and second conical flask all are to be used for dry air protection vacuum pump, and the effect of three way cock is the switching of control channel, and the effect of third hand tap shape bottle is a preparation oil field injection system; Wherein, The component of oil field injection system except moisture (for example oilfield sewage) all is filled in the third hand tap shape bottle in advance, and the effect of bucket is a dress anaerobism preparation sewage, and the effect of nitrogen bag is for this device nitrogen to be provided; The effect of ampoule bottle is to preserve the oil field injection system, and the effect of blowtorch (generally adopting alcohol blast burner) is ampoule bottle to be carried out fusion seal.
Above-mentioned anaerobism preparation that provides of the utility model and the device that anaerobism is preserved the oil field injection system are less closed systems, find time to make intrasystem oxygen content to reach ultralow through vacuum pump.Preparation oil field injection system can greatly reduce dissolved oxygen in this device, and this device can be packed the oil field injection system of prepare in the ampoule bottle of vacuum into simultaneously, passes through alcohol blast burner high temperature and seals, and the oil field injection system is sealed in the ampoule bottle of anaerobism.
Above-mentioned anaerobism preparation that provides of the utility model and the device that anaerobism is preserved the oil field injection system carry out the method for injection system evaluation and can carry out according to following steps:
1,, adopt degassing method to obtain the anaerobism sewage that the preparation injection system is used with the bucket that is full of nitrogen;
The oil field injection system is prepared and sealed up for safekeeping to the device anaerobism of 2, preserving the oil field injection system with the above-mentioned anaerobism preparation that provides and the anaerobism of the utility model;
3, putting into 45 ℃ of insulating boxs to the oil field injection system of sealing up for safekeeping with ampoule bottle preserves;
4, every at a distance from an envelope of special time taking-up ampoule bottle, put into anaerobic box and carry out stability evaluations such as the viscosity of oil field injection system under the anaerobic environment, interfacial tension.
Wherein, above-mentioned the 2nd step can carry out according to following concrete operations:
(1) opens the first rubber tube passage, the second rubber tube passage and the 4th rubber tube passage through first three way cock and second three way cock; Close other rubber tube passage; Open vacuum pump third hand tap shape bottle is vacuumized, vacuum meter demonstration-0.09MPa is above to get final product, and closes the vacuum pump and first three way cock, second three way cock after finding time to finish;
(2) keep the 4th rubber tube passage and the 6th rubber tube pathway closure; Open the configuration anaerobism sewage that the 5th rubber tube passage utilizes the negative pressure suction specified quantitative in the third hand tap shape bottle; After finishing, suction closes the 5th rubber tube passage, the third hand tap of fully vibrating shape bottle, preparation injection system;
(3) open the first rubber tube passage, the second rubber tube passage and the 7th rubber tube passage, other passage contract fully is opened vacuum pump ampoule bottle is vacuumized, and vacuum meter demonstration-0.09MPa is above to get final product, and vacuumizes to close vacuum pump after finishing;
(4) open the second rubber tube passage, the 3rd rubber tube passage and the 7th rubber tube passage; Other passage contract fully; Utilize the negative pressure in the ampoule bottle to suck the injection system in the third hand tap shape bottle, when injection system will be filled to the shoulder of ampoule bottle, close the 7th rubber tube passage;
(5) bottleneck with alcohol blast burner fusion ampoule bottle seals, and accomplishes the preparation of injection system.
Utilize the above-mentioned anaerobism preparation that provides of the utility model and the device of anaerobism preservation oil field injection system can make the oil field injection system prepare and seal up for safekeeping and avoid dissolving in of oxygen in the process as far as possible; And can make injection system air tight in long process of preservation, guarantee the actual value of layer anaerobic environment closer to the performance evaluation result of injection system.
Description of drawings
Following accompanying drawing only is intended to the utility model is done schematic illustration and explanation, does not limit the scope of the utility model.Wherein:
The structural representation that anaerobism preparation that Fig. 1 provides for embodiment 1 and anaerobism are preserved the device of oil field injection system.
The drawing reference numeral explanation:
Vacuum pump 1 first conical flask 2 second conical flasks 3
First three way cock, 4 second three way cock, 5 third hand tap shape bottles 6
Bucket 7 nitrogen bags 8 ampoule bottles 9
Blowtorch 10 first rubber tube passages 11 second rubber tubes 12
The 3rd rubber tube passage 13 the 4th rubber tube passage 14 the 5th rubber tube passage 15
The 6th rubber tube passage 16 the 7th rubber tube passage 17 threeway plugs 18
The specific embodiment
Understand for technical characterictic, purpose and beneficial effect to the utility model have more clearly, with reference to Figure of description the technical scheme of the utility model is carried out following detailed description, but but can not be interpreted as qualification at present the practical range of the utility model.
Embodiment 1
Present embodiment provides a kind of anaerobism preparation and anaerobism to preserve the device of oil field injection system, and its structure is as shown in Figure 1.The preparation of this anaerobism comprises with the device of anaerobism preservation oil field injection system: vacuum pump 1, first conical flask 2, second conical flask 3, first three way cock 4, second three way cock 5, third hand tap shape bottle 6, bucket 7, nitrogen bag 8, ampoule bottle 9 and blowtorch 10, wherein,
Third hand tap shape bottle 6 is provided with threeway plug 18;
Vacuum pump 1, first conical flask 2, second conical flask 3 are connected through the first rubber tube passage 11 with first three way cock 4;
First three way cock 4 is connected through the second rubber tube passage 12 with second three way cock 5;
The bottom of first three way cock 4 and third hand tap shape bottle 6 is connected through the 3rd rubber tube passage 13;
Second three way cock 4 is connected through the 4th rubber tube passage 14 with threeway plug 18 on the third hand tap shape bottle 6
Nitrogen bag 8 is connected through the 5th rubber tube passage 15 with threeway plug 18 on the third hand tap shape bottle 6;
Bucket 7 is connected through the 6th rubber tube passage 16 with threeway plug 18 on the third hand tap shape bottle 6;
Second three way cock 5 is connected through the 7th rubber tube passage 17 with ampoule bottle 9;
Blowtorch 10 is provided with the neck part of ampoule bottle 9.
Test Example 1 three kinds of manner of formulation prepared polymer solutions detectable concentration and viscosity data
Experimental procedure:
1, getting molecular weight is that 2,500 ten thousand polyacrylamide uses clear water to be mixed with the polymer mother liquor of concentration as 5000mg/L;
2, adopt three kinds of modes that the polymer mother liquor dilution is the polymer solution of variable concentrations, measure the viscosity (Brookfield viscometer) of polymer solution:
Mode one: under the oxygen condition that exposes to the sun, adopt the oxygen dilution of sewage polymer mother liquor that exposes to the sun, expose to the sun and measure viscosity under the oxygen condition; The oxygen sewage (expose to the sun oxygen sewage and anaerobism sewage are sewage of the same race) that exposes to the sun is meant at normal temperatures and pressures, and sewage is exposed under the situation of air or in a large amount of sewage, advertises air, makes the sewage that oxygen fully mixes, dissolves with sewage in the air;
Mode two: use existing anaerobism evaluation method (method that the background technology part is mentioned), adopt anaerobism dilution of sewage polymer mother liquor, anaerobic condition is measured viscosity down;
Mode three: use the anaerobism evaluation method of embodiment 1, adopt anaerobism dilution of sewage polymer mother liquor, anaerobic condition is measured viscosity down;
In above-mentioned three kinds of modes, except the mode difference of preparation injection system, other operations all are identical.
Result of the test is as shown in table 1.
The concentration and the viscosity data of the polymer solution that three kinds of manner of formulation of table 1 are measured
See from above-mentioned result of the test; In the polymer solution of variable concentrations; The expose to the sun viscosity of the polymer solution that the oxygen mode prepares of employing is the highest; Adopt the viscosity of polymer solution of existing anaerobism evaluating apparatus preparation lower slightly; The viscosity of the polymer solution that the device that adopts embodiment 1 to provide is prepared is minimum, but near the existing mensuration result who uses the anaerobism method always, the device preparation injection system that this explanation employing embodiment 1 provides is the viscosity size of simulating polymer solution under anaerobic conditions more truly.
2 three kinds of manner of formulation prepared polymer solutions of Test Example detect viscosity stability
Experimental procedure:
1, getting molecular weight is that 2,500 ten thousand polyacrylamide uses clear water to be mixed with the polymer mother liquor of concentration as 5000mg/L;
2, adopting three kinds of modes is the polymer solution of 1800mg/L with the polymer mother liquor dilution for concentration, measures the viscosity stability (Brookfield viscometer) of polymer solution:
Mode one: under the oxygen condition that exposes to the sun, adopt the oxygen dilution of sewage polymer mother liquor that exposes to the sun, the following 45 ℃ of constant temperature of the oxygen condition that exposes to the sun preserve and regularly (be different ageing time under) measure viscosity;
Mode two: use existing anaerobism evaluation method (background technology part mentioned method), adopt anaerobism dilution of sewage polymer mother liquor, the following 45 ℃ of constant temperature of anaerobic condition preserve and regularly (be different ageing time under) measure viscosity;
Mode three: use the anaerobism evaluation method of embodiment 1, adopt anaerobism dilution of sewage polymer mother liquor, the following 45 ℃ of constant temperature of anaerobic condition preserve and regularly (be different ageing time under) measure viscosity.
Result of the test is as shown in table 2.
The viscosity stability result of the polymer solution that three kinds of manner of formulation of table 2 are measured
Result of the test from table 2 sees that concentration is the polymer solution of 1800mg/L, adopts the viscosity of the polymer solution that the oxygen mode of exposing to the sun prepares the highest, and 90 days sticking decreases 33.06%; Adopt the viscosity of polymer solution of existing anaerobism evaluation method preparation lower slightly, 90 days sticking decreases 43.66%; The viscosity of the polymer solution that the device that adopts embodiment 1 to provide is prepared is minimum, 90 days sticking damages 55.8%.Viscosity * 100% on sticking damage the=(prepared polymer solution the same day the viscosity (45 ℃) of viscosity-placement after 90 days)/prepared polymer solution same day.
Can find out from Test Example 1 and Test Example 2; The polymer solution oxygen viscosity>anaerobism viscosity of exposing to the sun; The polymer viscosity that the evaluation method of the device that existing anaerobism evaluation method of employing and embodiment 1 provide records; The same day, numerical value was more or less the same, and along with the increase of ageing time, adopted the viscosity of polymer solution of the evaluation method preparation of the device that embodiment 1 provides to be starkly lower than the viscosity of the polymer solution that adopts existing anaerobism evaluation method preparation commonly used; It is thus clear that adopt device that anaerobism preparation that the utility model provided and anaerobism preserve the oil field injection system preparing and seal up for safekeeping the oxygen that incorporates in the process still less, make the result of its mensuration more approach actual value.

Claims (6)

1. the device of anaerobism preparation and anaerobism preservation oil field injection system; It is characterized in that; The device that this anaerobism preparation and anaerobism are preserved the oil field injection system comprises: vacuum pump, first conical flask, second conical flask, first three way cock, second three way cock, third hand tap shape bottle, bucket, nitrogen bag, ampoule bottle and blowtorch; Wherein
Said vacuum pump, said first conical flask, said second conical flask are connected through the first rubber tube passage with said first three way cock;
Said first three way cock is connected through the second rubber tube passage with said second three way cock;
Said first three way cock is connected through the 3rd rubber tube passage with said third hand tap shape bottle;
Said second three way cock is connected through the 4th rubber tube passage with said third hand tap shape bottle;
Said nitrogen bag is connected through the 5th rubber tube passage with said third hand tap shape bottle;
Said bucket is connected through the 6th rubber tube passage with said third hand tap shape bottle;
Said second three way cock is connected through the 7th rubber tube passage with said ampoule bottle;
Said blowtorch is located at the neck part of said ampoule bottle.
2. anaerobism preparation according to claim 1 and anaerobism are preserved the device of oil field injection system, it is characterized in that the bottom of said first three way cock and said third hand tap shape bottle is connected through the 3rd rubber tube passage.
3. anaerobism preparation according to claim 1 and anaerobism are preserved the device of oil field injection system, it is characterized in that said third hand tap shape bottle is provided with the threeway plug.
4. the device of anaerobism according to claim 3 preparation and anaerobism preservation oil field injection system is characterized in that, said second three way cock is connected through the 4th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
5. the device of anaerobism according to claim 3 preparation and anaerobism preservation oil field injection system is characterized in that, said nitrogen bag is connected through the 5th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
6. the device of anaerobism according to claim 3 preparation and anaerobism preservation oil field injection system is characterized in that, said bucket is connected through the 6th rubber tube passage with said threeway plug on the said third hand tap shape bottle.
CN2012202352321U 2012-05-23 2012-05-23 Device for anaerobic preparation and anaerobic preservation oil field injection system Active CN202560205U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492125A (en) * 2014-12-31 2015-04-08 大港油田集团有限责任公司 Method for removing dissolved oxygen in viscous liquid
CN105906046A (en) * 2016-06-24 2016-08-31 燕京啤酒(桂林漓泉)股份有限公司 Method for judging degree of influences of chemical reagent production application on normal running of sewage anaerobic treatment system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492125A (en) * 2014-12-31 2015-04-08 大港油田集团有限责任公司 Method for removing dissolved oxygen in viscous liquid
CN104492125B (en) * 2014-12-31 2016-06-15 大港油田集团有限责任公司 A kind of dissolved oxygen method in removal thick liquid
CN105906046A (en) * 2016-06-24 2016-08-31 燕京啤酒(桂林漓泉)股份有限公司 Method for judging degree of influences of chemical reagent production application on normal running of sewage anaerobic treatment system
CN105906046B (en) * 2016-06-24 2018-08-17 燕京啤酒(桂林漓泉)股份有限公司 The determination method for influencing degree of strength that chemical agent puts into production use to anerobic sowage processing system normal operation

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