CN206311560U - The evaluating apparatus of surfactant activity during rock core displacement - Google Patents

The evaluating apparatus of surfactant activity during rock core displacement Download PDF

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Publication number
CN206311560U
CN206311560U CN201621376250.6U CN201621376250U CN206311560U CN 206311560 U CN206311560 U CN 206311560U CN 201621376250 U CN201621376250 U CN 201621376250U CN 206311560 U CN206311560 U CN 206311560U
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China
Prior art keywords
core
receptacle
pipeline
surfactant
dimensional
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CN201621376250.6U
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Chinese (zh)
Inventor
刘己全
王鹏
孙涛
薛艳鹏
魏波
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Abstract

The utility model provides a kind of evaluating apparatus of surfactant activity during rock core displacement, including:One-dimensional core model, the inside of one-dimensional core model can fill the core material of different-grain diameter;Multiple sample tap at equal intervals is offered on the side of one-dimensional core model, each sample tap is connected by pipeline with a sampler;One valve is set on every pipeline;Sampler is used to collect the core fluids of corresponding sample tap position;One end of one-dimensional core model is connected with intermediate receptacle, and the other end of one-dimensional core model is connected with production fluid collection vessel;Intermediate receptacle is used to load any one in water, crude oil and surfactant;Production fluid collection vessel is used to collect rock core production fluid.The evaluating apparatus of surfactant activity, improve the evaluation accuracy of surfactant activity during rock core displacement during the rock core displacement that the utility model is provided.

Description

The evaluating apparatus of surfactant activity during rock core displacement
Technical field
The utility model is related to surfactant during oil-gas field development technical field, more particularly to a kind of rock core displacement The evaluating apparatus of activity.
Background technology
Surfactant can be diluted during rock core displacement by formation fluid, can also be adsorbed in rock surface, and this is caused Activity of the surfactant in rock core is greatly reduced, and directly affects the effect of surfactant.Therefore, determine and driven in rock core Surfactant activity during replacing is very necessary.
A kind of number of patent application side for determining surfactant activity for the patent of CN 201310739301.1 is disclosed Method, the method carries out foaming characteristic by paddling process or foam scanning method using the production fluid of foam displacement process to production fluid And the measure of half-life period, so that it is determined that its activity.
But, the method characterizes its activity simply by the foaming characteristic and stability of surfactant, and repeatability is poor. In addition, it is desirable to collecting certain production fluid in the port of export can just carry out related experiment measure, experimental result can only qualitative evaluation The foamability and stability of surfactant so that evaluation result accuracy is very low.
Utility model content
The utility model provides a kind of evaluating apparatus of surfactant activity during rock core displacement, improves rock core drive The evaluation accuracy of surfactant activity during replacing.
The evaluating apparatus of surfactant activity during the rock core displacement that the utility model is provided, including:
One-dimensional core model, the inside of the one-dimensional core model can fill the core material of different-grain diameter;
Offered on the side of the one-dimensional core model at equal intervals multiple sample taps, each sample tap by pipeline with One sampler connection;One valve is set on every pipeline;The sampler is used to collect the rock of corresponding sample tap position Heart fluid;
One end of the one-dimensional core model is connected with intermediate receptacle, the other end and production fluid of the one-dimensional core model Collection vessel is connected;The intermediate receptacle is used to load any one in water, crude oil and surfactant;The production fluid is received Collection container is used to collect rock core production fluid.
Optionally, the sampler includes stainless steel casing and clear glass inner bag, and the two ends of the sampler set respectively The inlet and liquid outlet connected with the clear glass inner bag are equipped with, the inlet is connected by pipeline with corresponding sample tap Connect, the liquid outlet is connected with valve.
Optionally, it is provided with watch window on the stainless steel casing.
Optionally, the one-dimensional core model includes the shell of cylindrical shape, and cylindrical is provided with the shell The inner chamber of shape.
Optionally, the intermediate receptacle is connected by pipeline with constant-flux pump, and the constant-flux pump is used for the intermediate receptacle In fluid be input into the one-dimensional core model.
Optionally, piston is provided with the intermediate receptacle, the piston will be separated into first inside the intermediate receptacle Chamber and second chamber;The first chamber is connected by pipeline with one end of the one-dimensional core model, the second chamber It is connected with the constant-flux pump by pipeline;The first chamber is used to load any one in water, crude oil and surfactant.
Optionally, it is provided with valve on the pipeline between the intermediate receptacle and the stream pump.
Optionally, the intermediate receptacle is connected with pressure gauge.
Optionally, it is provided with the pipeline between the other end of the one-dimensional core model and the production fluid collection vessel Valve.
The utility model provides a kind of evaluating apparatus of surfactant activity during rock core displacement, including:It is one-dimensional Core model, the inside of one-dimensional core model can fill the core material of different-grain diameter.Opened up on the side of one-dimensional core model There is multiple sample tap at equal intervals, each sample tap is connected by pipeline with a sampler.One valve is set on every pipeline Door.Sampler is used to collect the core fluids of corresponding sample tap position.One end of one-dimensional core model is connected with intermediate receptacle, The other end of one-dimensional core model is connected with production fluid collection vessel.Intermediate receptacle is used to load water, crude oil and surfactant In any one.Production fluid collection vessel is used to collect rock core production fluid.The evaluating apparatus that the utility model is provided, by taking Sample device can obtain the surfactant solution of diverse location different time during rock core displacement, and then it is different to get rock core The quantitative data of position surfactant activity not in the same time, improves commenting for surfactant activity during rock core displacement Valency accuracy.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the evaluating apparatus of surfactant activity during the rock core displacement that the utility model embodiment one is provided Structural representation;
Fig. 2 is the structural representation of the sampler that the utility model embodiment one is provided;
Fig. 3 is the evaluation method of surfactant activity during the rock core displacement that the utility model embodiment one is provided Flow chart.
Description of reference numerals:
11:One-dimensional core model;
12:Core material;
13:Sample tap;
14:Sampler;
15:Valve;
16:Intermediate receptacle;
17:Production fluid collection vessel;
18:Stainless steel casing;
19:Clear glass inner bag;
20:Inlet;
21:Liquid outlet;
22:Watch window;
23:Constant-flux pump;
24:Piston;
25:First chamber;
26:Second chamber;
27:Pressure gauge.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of the utility model protection.
Fig. 1 is the evaluating apparatus of surfactant activity during the rock core displacement that the utility model embodiment one is provided Structural representation.As shown in figure 1, the present embodiment provide rock core displacement during surfactant activity evaluating apparatus, can To include:
One-dimensional core model 11, the inside of one-dimensional core model 11 can fill the core material 12 of different-grain diameter.
Multiple sample tap 13 at equal intervals is offered on the side of one-dimensional core model 11, each sample tap 13 passes through pipeline It is connected with a sampler 14.One valve 15 is set on every pipeline.Sampler 14 is used to collect corresponding sample tap 13 The core fluids put.
One end of one-dimensional core model 11 is connected with intermediate receptacle 16, and the other end and the production fluid of one-dimensional core model 11 are received Collection container 17 is connected.Intermediate receptacle 16 is used to load any one in water, crude oil and surfactant.Production fluid collection vessel 17 are used to collect rock core production fluid.
Specifically, when rock core displacement test is carried out, the inside of one-dimensional core model 11 can fill the stone of different meshes Sand.By filling with water, crude oil or surfactant in intermediate receptacle 16, it is possible to achieve to saturation water, saturation in rock core Oil and surfactant displacement.Valve 15 between control sample tap 13 and sampler 14, can collect in sampler 14 To rock core diverse location core fluids not in the same time.Core fluids in sampler 14 are carried out using high performance liquid chromatography Analysis, it is possible to which detection obtains the surfactant concentration of rock core diverse location core fluids not in the same time, so as to obtain The quantitative data result of surfactant activity during rock core displacement.
Wherein, the activity in all embodiments of the utility model, the also referred to as rate of disintegration, refer to that sample declines within the unit interval Become the atomicity of falling, the i.e. valid density of something, or referred to as effective mole fraction of material.
It can be seen that, the evaluating apparatus of surfactant activity during the rock core displacement that the present embodiment is provided, by sampler 14 can obtain the surfactant solution of diverse location different time during rock core displacement, and then get rock core difference position The quantitative data of surfactant activity not in the same time is put, the evaluation of surfactant activity during rock core displacement is improved Accuracy.Compared to prior art, caused by solving the qualitative analysis that surfactant activity is carried out by collecting production fluid The inaccurate technical problem of evaluation result.
It should be noted that the present embodiment is not specially limited for the shape of one-dimensional core model 11, material, according to need It is configured.
Optionally, as a kind of concrete implementation mode, one-dimensional core model 11 includes the shell of cylindrical shape, shell Inside it is provided with the inner chamber of cylindrical shape.
Optionally, the length of one-dimensional core model 11 is 600mm.
Optionally, the shell of one-dimensional core model 11 is metal shell.
It should be noted that the present embodiment is not specially limited for the shape and capacity of intermediate receptacle 16, as needed It is configured.
Optionally, the capacity of intermediate receptacle 16 is 1L.
Optionally, as a kind of concrete implementation mode, Fig. 2 is the knot of the sampler that the utility model embodiment one is provided Structure schematic diagram.As shown in Fig. 2 sampler includes stainless steel casing 18 and clear glass inner bag 19, the two ends of sampler set respectively The inlet 20 and liquid outlet 21 connected with clear glass inner bag 19 are equipped with, inlet 20 passes through pipeline and corresponding sample tap 13 Connection, liquid outlet 21 is connected with valve 15.
Optionally, the front end of liquid inlet is connected with valve 15.
Optionally, it is provided with watch window 22 on stainless steel casing 18.
By setting watch window 22 on stainless steel casing 18, experimenter can see during rock core displacement test The state of core fluids in sampler is examined, experimenter's observation experiment process is facilitated, the flexible of rock core displacement test is improve Property.
Wherein, the present embodiment is not specially limited for the position of watch window 22, shape.
Optionally, intermediate receptacle 16 is connected by pipeline with constant-flux pump 23, and constant-flux pump 23 is used in intermediate receptacle 16 Fluid is input into one-dimensional core model 11.
Wherein, the present embodiment is not specially limited for the model and type of constant-flux pump 23.
Optionally, piston 24 is provided with intermediate receptacle 16, piston 24 will be separated into first chamber inside intermediate receptacle 16 25 and second chamber 26.First chamber 25 is connected by pipeline with one end of one-dimensional core model 11, and second chamber 26 is by pipe Line is connected with constant-flux pump 23.First chamber 25 is used to load any one in water, crude oil and surfactant.
Optionally, it is provided with valve 15 on the pipeline between intermediate receptacle 16 and stream pump.
Optionally, intermediate receptacle 16 is connected with pressure gauge 27.
By setting pressure gauge 27, intermediate receptacle 16 can be controlled to saturation water, saturated oils and surface-active in rock core The pressure of agent displacement, rate of flow of fluid, improve the accuracy of rock core displacement test.
Optionally, it is provided with valve on the pipeline between the other end of one-dimensional core model 11 and production fluid collection vessel 17 15。
A kind of evaluating apparatus of surfactant activity during rock core displacement are present embodiments provided, including:One-dimensional rock Heart model, intermediate receptacle, production fluid collection vessel, offer multiple sample tap at equal intervals on the side of one-dimensional core model, Each sample tap is connected by pipeline with a sampler.The evaluating apparatus that the present embodiment is provided, can be obtained by sampler The surfactant solution of diverse location different time during rock core displacement, and then get rock core diverse location not in the same time Surfactant activity quantitative data, improve the evaluation accuracy of surfactant activity during rock core displacement.
Fig. 3 is the evaluation method of surfactant activity during the rock core displacement that the utility model embodiment one is provided Flow chart.As shown in figure 3, the present embodiment provide rock core displacement during surfactant activity evaluation method, be applied to The evaluating apparatus of surfactant activity during the rock core displacement that Fig. 1~Fig. 2 device embodiments are provided, method includes:
Step 101, intermediate receptacle is filled with distilled water or stratum water, according to the first preset flow rate to one-dimensional core model Input distilled water or stratum water.
Optionally, if evaluating apparatus include constant-flux pump, this step is specially:Intermediate receptacle is filled with into distilled water or ground Layer water, opens constant-flux pump, the valve between constant-flux pump and intermediate receptacle is opened, according to the first preset flow rate to one-dimensional core model Input distilled water or stratum water.
Wherein, the present embodiment is not specially limited for the concrete numerical value of the first preset flow rate, is configured as needed. For example:First preset flow rate can be 2mL/min.
Step 102, intermediate receptacle is filled with into crude oil, be input into crude oil to one-dimensional core model according to the second preset flow rate, directly To reaching constraint water state.
Optionally, if evaluating apparatus include constant-flux pump, this step is specially:Intermediate receptacle is filled with into crude oil, opens flat Stream pump, opens the valve between constant-flux pump and intermediate receptacle, is input into crude oil to one-dimensional core model according to the second preset flow rate, directly To reaching constraint water state.
Optionally, when constraint water state is reached, the crude oil volume of saturation is recorded.
Wherein, the present embodiment is not specially limited for the concrete numerical value of the second preset flow rate, is configured as needed. For example:Second preset flow rate can be 2mL/min.
Step 103, intermediate receptacle is filled with into surfactant solution, it is defeated to one-dimensional core model according to the 3rd preset flow rate Enter surfactant solution.
Optionally, if evaluating apparatus include constant-flux pump, this step is specially:Intermediate receptacle is filled with into surfactant molten Liquid, opens constant-flux pump, opens the valve between constant-flux pump and intermediate receptacle, defeated to one-dimensional core model according to the 3rd preset flow rate Enter surfactant solution.
Wherein, the present embodiment is not specially limited for the specific implementation of surfactant solution, enters as needed Row is set.
Optionally, surfactant solution can be two-(2- the ethylhexyls)-sulfonic acid of 0.5~1.5wt% of mass concentration Sodium succinate solution (AOT) or lauryl sodium sulfate (SDS).
Wherein, the present embodiment is not specially limited for the concrete numerical value of the 3rd preset flow rate, is configured as needed. For example:3rd preset flow rate can be 1mL/min.
Valve between step 104, all sample taps of opening and corresponding sample device, so that core fluids flow into corresponding taking Sample device.
Optionally, as a kind of specific embodiment, the valve between all sample taps and corresponding sample device is opened, with Core fluids is flowed into corresponding sampler, can include:
When the crude oil recovery percent of reserves of rock core production fluid is default value, open between all sample taps and corresponding sample device Valve so that core fluids flow into corresponding sampler.
Wherein, the present embodiment is not specially limited for the concrete numerical value of default value, is configured as needed.Example Such as:Default value can be 5%, 10%, etc..
Step 105, the valve closed between all sample taps and corresponding sample device, by the core fluids solution in sampler Sample bottle is poured into, after surfactant solution is separated with crude oil, core fluids is obtained using high performance liquid chromatography detection Surfactant concentration.
It can be seen that, the evaluation method of surfactant activity during the rock core displacement that the present embodiment is provided, by sampler, Diverse location, different time, the surfactant solution of different crude oils recovery percent of reserves during rock core displacement can be obtained, and then The quantitative data of rock core diverse location surfactant activity not in the same time is got, surface during rock core displacement is improved The evaluation accuracy of activating agent activity.
One of ordinary skill in the art will appreciate that:Realizing all or part of step of above-mentioned each method embodiment can lead to The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey Sequence upon execution, performs the step of including above-mentioned each method embodiment;And foregoing storage medium includes:ROM, RAM, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that:Various embodiments above is only used to illustrate the technical solution of the utility model, rather than it is limited System;Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should Understand:It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent;And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (9)

1. during a kind of rock core displacement surfactant activity evaluating apparatus, it is characterised in that including:
One-dimensional core model, the inside of the one-dimensional core model can fill the core material of different-grain diameter;
Multiple sample tap at equal intervals is offered on the side of the one-dimensional core model, each sample tap passes through pipeline and one Sampler is connected;One valve is set on every pipeline;The sampler is used to collect the rock core stream of corresponding sample tap position Body;
One end of the one-dimensional core model is connected with intermediate receptacle, and the other end and the production fluid of the one-dimensional core model are collected Container is connected;
The intermediate receptacle is used to load any one in water, crude oil and surfactant;The production fluid collection vessel is used In collection rock core production fluid.
2. device according to claim 1, it is characterised in that the sampler is included in stainless steel casing and clear glass Courage, the two ends of the sampler are respectively arranged with the inlet and liquid outlet that are connected with the clear glass inner bag, the feed liquor Mouth is connected by pipeline with corresponding sample tap, and the liquid outlet is connected with valve.
3. device according to claim 2, it is characterised in that be provided with watch window on the stainless steel casing.
4. device according to claim 1, it is characterised in that the one-dimensional core model includes the outer of cylindrical shape Shell, is provided with the inner chamber of cylindrical shape in the shell.
5. device according to claim 1, it is characterised in that the intermediate receptacle is connected by pipeline with constant-flux pump, institute Constant-flux pump is stated for the fluid in the intermediate receptacle to be input into the one-dimensional core model.
6. device according to claim 5, it is characterised in that piston is provided with the intermediate receptacle, the piston will First chamber and second chamber are separated into inside the intermediate receptacle;
The first chamber is connected by pipeline with one end of the one-dimensional core model, and the second chamber passes through pipeline and institute State constant-flux pump connection;The first chamber is used to load any one in water, crude oil and surfactant.
7. device according to claim 5, it is characterised in that set on the pipeline between the intermediate receptacle and the stream pump It is equipped with valve.
8. device according to claim 1, it is characterised in that the intermediate receptacle is connected with pressure gauge.
9. device according to claim 1, it is characterised in that the other end of the one-dimensional core model and the production fluid Valve is provided with pipeline between collection vessel.
CN201621376250.6U 2016-12-15 2016-12-15 The evaluating apparatus of surfactant activity during rock core displacement Active CN206311560U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931394A (en) * 2018-05-17 2018-12-04 南通市飞宇石油科技开发有限公司 A kind of rock core oil washing instrument that can be sampled detection automatically

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931394A (en) * 2018-05-17 2018-12-04 南通市飞宇石油科技开发有限公司 A kind of rock core oil washing instrument that can be sampled detection automatically

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