CN103743657A - Experimental determination method for passing capability of polymer gel grains in porous medium - Google Patents
Experimental determination method for passing capability of polymer gel grains in porous medium Download PDFInfo
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Abstract
The invention provides an experimental determination method for the passing capability of polymer gel grains in a porous medium. The method comprises the following steps: measuring a relation curve of the absorbance and the concentration of a polymer gel grain standard solution; determining a change relation curve of passing factors of the polymer gel grains along with pressure under different permeation rates; determining a change relation curve of the passing factors of the polymer gel grains along with the pressure under different injection concentrations; determining a starting pressure of the polymer gel grains and a passing pressure of the polymer gel grains; and obtaining a polymer gel grain passing factor chart according to the curves, the starting pressure of the polymer gel grains and the passing pressure of the polymer gel grains in the step 1 and the step 4. The experimental determination method for the passing capability of the polymer gel grains in the porous medium provides experimental evidences for establishing a heterogeneous combination flooding numerical simulation method and quantitatively characterizing a displacement mechanism.
Description
Technical field
The present invention relates to numerical reservoir simulation theoretical research, technology application and oil-gas field development and improve oil recovery field, particularly relate to the experimental determining method of a kind of polymer gel particles handling capacity in porous medium.
Background technology
Along with chemical flooding technology applying for a long time on mining site, the output of Polymer Flooding Reservoirs starts to present downward trend year by year, and various novel oil displacement agents and new co-displacement mode are moved towards mining site application from experimental study gradually.Heterogeneous (polymer gel particles+polymkeric substance+surfactant) composite displacement system is the novel transfer drive system that Shengli Oil Field developed in recent years, its main displacing agent is the crosslinked viscoelastic particle of polymkeric substance, surfactant and branching half (polymer gel particles, B-PPG).The main research purpose of this system is for Reservoir Heterogeneity after adapting to polymer flooding further aggravates, and by transfer drive, increases substantially oil recovery rate.Polymer gel particles is to be suspended in solution with the form of solid particle while flowing in porous medium; along with displacing fluid flows, in migration process because surface deposition and particle aggregation can produce and stop up pore throat, and along with the rising of pressure; particle can be out of shape by pore throat, continues migration.On method for numerical simulation, researchist, for startup, obstruction and the migration of polymer gel particles, lacks targetedly and describes both at home and abroad at present.Shengli Oil Field has proposed to describe the method for numerical simulation of polymer gel particles noncontinuity migration Mechanism of profile control and displacement, and wherein the important point is exactly in concentration of component equation, to have introduced polymer gel particles by the concept of the factor.By factor representation polymer gel particles, by the concentration ratio before and after unit volume of voids, reflected that polymer gel particles is by migration, deposition, the blocking ability of pore throat or numerical simulation grid body.When polymer gel particles passes through blowhole, owing to shearing the existence that waits effect, make the detection of the concentration to it become a more difficult problem.Experimentally, particle is through pore throat through effects such as shearings, and grain diameter diminishes, and need to introduce new measurement means.The factors such as the permeability of passing through the factor and hole of polymer gel particles in pore throat, displacement pressure reduction are relevant, how by laboratory experiment, to measure polymer gel particles by factor plate, the handling capacity of quantitatively characterizing particle in hole, for numerical reservoir simulation provides effective Data support, it is the Important Problems that reservoir engineer is concerned about.We have invented the experimental determining method of a kind of new polymer gel particles handling capacity in porous medium for this reason, have solved above technical matters.
Summary of the invention
The object of this invention is to provide a kind of foundation for heterogeneous combination flooding method for numerical simulation with and the quantitatively characterizing of displacement mechanism the experimental determining method of polymer gel particles handling capacity in porous medium of experimental basis is provided.
Object of the present invention can be achieved by the following technical measures: the experimental determining method of polymer gel particles handling capacity in porous medium, this polymer gel particles experimental determining method of handling capacity in porous medium comprises: step 1, measure the absorbance of polymer gel particles standard solution and the relation curve of concentration; Step 2, determine under different permeabilities polymer gel particles by the factor variation relation curve with pressure; Step 3, determine under different implantation concentrations polymer gel particles by the factor variation relation curve with pressure; Step 4, determines that polymer gel particles starting pressure and polymer gel particles pass through pressure; And step 5, the curve obtaining to step 4 according to step 1 and polymer gel particles starting pressure and polymer gel particles, by pressure, obtain polymer gel particles by factor plate.
Object of the present invention also can be achieved by the following technical measures:
In step 1, with the absorbance of ultraviolet visible spectrophotometer measurement polymer gel particles standard solution and the relation curve of concentration.
In step 2, the implantation concentration speed of fixed polymer gel particle, change the permeability of fill out sand tube, mensuration injection pressure changes, utilize ultra-violet and visible spectrophotometer indirectly to measure the concentration of endpiece polymer gel particles production fluid simultaneously, by the concentration of polymer gel particles solution before and after contrast displacement, obtain under different permeabilities polymer gel particles by the factor change curve with injection pore volume multiple, according to the injection pore volume multiple-pressure recording and injection pore volume multiple-polymer gel particles by two curves of the factor determine under different permeabilities polymer gel particles by the factor variation relation curve with pressure.
In step 3, the injection rate of immobilized particles and fill out sand tube permeability, change implantation concentration, mensuration injection pressure changes, utilize ultra-violet and visible spectrophotometer indirectly to measure the concentration of endpiece polymer gel particles production fluid simultaneously, by the concentration of polymer gel particles solution before and after contrast displacement, obtain under different implantation concentrations injection pressure and particle by the factor change curve with injection pore volume multiple, and determine under different implantation concentrations polymer gel particles by the factor variation relation curve with pressure.
In step 4, under the different permeabilities that record according to step 2 and step 3, different implantation concentration polymer gel particles by the factor variation relation curve with pressure, the approximate polymer gel particles starting pressure that is considered as of injection side pressure that endpiece concentration is greater than at 1 o'clock, the injection pressure when reaching peak value or stationary value is considered as polymer gel particles and passes through pressure.
In step 5, according to polymer gel particles under the different permeabilities that record in step 2 and step 3, different implantation concentration by the factor variation relation curve with pressure, the endpoint value of every curve is determined by pressure by the polymer gel particles starting pressure and the polymer gel particles that obtain in step 4, then is obtained polymer gel particles by factor plate by data interpolating or formula fitting.
The experimental determining method of the handling capacity in porous medium of the polymer gel particles in the present invention, according to the parameter that can provide in numerical simulation, set up and asked for polymer gel particles by the experimental technique of factor plate, for the foundation of heterogeneous combination flooding method for numerical simulation with and the quantitatively characterizing of displacement mechanism experimental basis is provided.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a specific embodiment of the experimental determining method of polymer gel particles of the present invention handling capacity in porous medium;
Fig. 2 is the concentration change schematic diagram that injects Produced Liquid;
Fig. 3 is the typical curve of polymer gel particles solution concentration;
Fig. 4 is production end and injection side polymer gel particles concentration ratio change curve under different permeabilities;
Fig. 5 injects pressure history under different permeabilities;
Fig. 6 is that under different permeabilities, pressure gradient, polymer gel particles passes through factor plate.
Embodiment
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate appended graphicly, be described in detail below.
As shown in Figure 1, Fig. 1 is the process flow diagram of polymer gel particles of the present invention experimental determining method of handling capacity in porous medium.
In step 101, record the prepared absorbance of polymer gel particles standard solution and the relation curve of concentration with ultraviolet visible spectrophotometer.Flow process enters into step 102.
In step 102, the implantation concentration speed of fixed polymer gel particle, change the permeability of fill out sand tube, measuring injection pressure (being actually pressure reduction) changes, utilize ultra-violet and visible spectrophotometer indirectly to measure the concentration of endpiece polymer gel particles production fluid simultaneously, by the concentration of polymer gel particles solution before and after contrast displacement, what obtain polymer gel particles under different permeabilities passes through the factor with the injection pore volume multiple change curve of (or claiming PV number), according to the injection pore volume multiple-pressure recording and injection pore volume multiple-polymer gel particles, by two curves of the factor, determine under different permeabilities the variation relation with pressure (poor) by the factor.Flow process enters into step 103.
In step 103, the injection rate of fixed polymer gel particle and fill out sand tube permeability, change implantation concentration, with the method in (2) measure under different implantation concentrations injection pressure and by the factor with the change curve that injects PV number, and determine under different implantation concentrations the variation relation with pressure (poor) by the factor.Flow process enters into step 104.
In step 104, the approximate polymer gel particles starting pressure (poor) that is considered as of injection side pressure that endpiece concentration is greater than at 1 o'clock, the injection pressure when reaching peak value or stationary value is considered as polymer gel particles and passes through pressure (poor).Flow process enters into step 105.
In step 105, under the different permeabilities that record according to step 102 and step 103, different implantation concentration polymer gel particles by the factor variation relation curve with pressure, the endpoint value of every curve is determined by starting pressure with by pressure, by data interpolating or formula fitting, obtain polymer gel particles by factor plate again, for oil reservoir engineering analysis and numerical simulation calculation application.Flow process finishes.
In an application specific embodiment of the present invention, take different permeabilities and pressure gradient as example, measuring its on polymer gel particles by the relation curve that affects of the factor.The concentration change schematic diagram of injection Produced Liquid is as shown in Figure 2 with concentration C by polymer gel particles suspension system
0inject porous medium, the polymer gel particles output concentration of endpiece is C, the Produced Liquid concentration detection method proposing according to the present invention, can utilize ultraviolet visible spectrophotometer to record the prepared absorbance of polymer gel particles standard solution and the relation curve of concentration, as shown in Figure 3.Gained concentration and absorbance linear dependence are better, therefore adopt ultraviolet visible spectrophotometer to measure the concentration of endpiece polymer gel particles production fluid, by the concentration of polymer gel particles solution before and after contrast displacement, indirectly obtain passing through the factor.Fig. 4 is respectively production end and injection side polymer gel particles concentration ratio change curve under different permeabilities, and Fig. 5 is corresponding injection pressure change curve.According to these results, can obtain polymer gel particles and pass through factor plate under current pore throat matching relationship, as Fig. 6.
Claims (6)
1. the experimental determining method of polymer gel particles handling capacity in porous medium, is characterized in that, this polymer gel particles experimental determining method of handling capacity in porous medium comprises:
Step 1, measures the absorbance of polymer gel particles standard solution and the relation curve of concentration;
Step 2, determine under different permeabilities polymer gel particles by the factor variation relation curve with pressure;
Step 3, determine under different implantation concentrations polymer gel particles by the factor variation relation curve with pressure;
Step 4, determines that polymer gel particles starting pressure and polymer gel particles pass through pressure; And
Step 5, the curve obtaining to step 4 according to step 1 and polymer gel particles starting pressure and polymer gel particles, by pressure, obtain polymer gel particles by factor plate.
2. the experimental determining method of polymer gel particles according to claim 1 handling capacity in porous medium, it is characterized in that, in step 1, with the absorbance of ultraviolet visible spectrophotometer measurement polymer gel particles standard solution and the relation curve of concentration.
3. the experimental determining method of polymer gel particles according to claim 1 handling capacity in porous medium, it is characterized in that, in step 2, the implantation concentration speed of fixed polymer gel particle, change the permeability of fill out sand tube, mensuration injection pressure changes, utilize ultra-violet and visible spectrophotometer indirectly to measure the concentration of endpiece polymer gel particles production fluid simultaneously, by the concentration of polymer gel particles solution before and after contrast displacement, obtain under different permeabilities polymer gel particles by the factor change curve with injection pore volume multiple, according to the injection pore volume multiple-pressure recording and injection pore volume multiple-polymer gel particles by two curves of the factor determine under different permeabilities polymer gel particles by the factor variation relation curve with pressure.
4. the experimental determining method of polymer gel particles according to claim 1 handling capacity in porous medium, it is characterized in that, in step 3, the injection rate of immobilized particles and fill out sand tube permeability, change implantation concentration, mensuration injection pressure changes, utilize ultra-violet and visible spectrophotometer indirectly to measure the concentration of endpiece polymer gel particles production fluid simultaneously, by the concentration of polymer gel particles solution before and after contrast displacement, obtain under different implantation concentrations injection pressure and particle by the factor change curve with injection pore volume multiple, and determine under different implantation concentrations polymer gel particles by the factor variation relation curve with pressure.
5. the experimental determining method of polymer gel particles according to claim 1 handling capacity in porous medium, it is characterized in that, in step 4, under the different permeabilities that record according to step 2 and step 3, different implantation concentration polymer gel particles by the factor variation relation curve with pressure, the approximate polymer gel particles starting pressure that is considered as of injection side pressure that endpiece concentration is greater than at 1 o'clock, the injection pressure when reaching peak value or stationary value is considered as polymer gel particles and passes through pressure.
6. the experimental determining method of polymer gel particles according to claim 1 handling capacity in porous medium, it is characterized in that, in step 5, according to polymer gel particles under the different permeabilities that record in step 2 and step 3, different implantation concentration by the factor variation relation curve with pressure, the endpoint value of every curve is determined by pressure by the polymer gel particles starting pressure and the polymer gel particles that obtain in step 4, then is obtained polymer gel particles by factor plate by data interpolating or formula fitting.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568702A (en) * | 2015-01-27 | 2015-04-29 | 中国石油大学(北京) | Method for measuring inaccessible pore volume and inaccessible pore radius of polymer |
| CN105136609A (en) * | 2015-08-05 | 2015-12-09 | 中国石油天然气股份有限公司 | Method and device for measuring mass percentage concentration of coal powder in coal bed gas well output liquid |
| CN105370250A (en) * | 2014-11-10 | 2016-03-02 | 中国石油化工股份有限公司 | Concentration distributing method for injecting chemical agent into stratum from shaft |
| CN106932313A (en) * | 2017-04-24 | 2017-07-07 | 东北石油大学 | A kind of polymer microballoon oil reservoir conformability evaluation method |
| CN107367563A (en) * | 2017-06-08 | 2017-11-21 | 中国石油化工股份有限公司 | Detect the sample-pretreating method of PPG in the oil field mining liquid containing PAM |
| CN111157073A (en) * | 2020-01-19 | 2020-05-15 | 中国石油大学(北京) | Method and system for measuring retention information of polymer solution in porous medium |
| CN111608643A (en) * | 2020-06-04 | 2020-09-01 | 中国石油大学(华东) | Evaluation method for matching of pre-crosslinked gel particle profile control agent and reservoir parameters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110178257A1 (en) * | 2010-01-18 | 2011-07-21 | Geoscience Research Institute of Shengli Oilfield Branch, SINOPEC | Novel oil displacement agent and process for preparing the same |
| CN102424749A (en) * | 2011-10-17 | 2012-04-25 | 东北石油大学 | High mineralization polymer gel and preparation method thereof |
| CN102242625B (en) * | 2011-04-25 | 2012-12-26 | 中国石油化工股份有限公司 | Method for improving recovery ratio of crude oil of oil deposit after polymer flooding |
| CN103091225A (en) * | 2013-01-15 | 2013-05-08 | 中国海洋石油总公司 | Method for measuring dynamic retention volume and inaccessible pore size of polymer in core |
| CN101942994B (en) * | 2010-09-16 | 2013-07-31 | 中国石油天然气股份有限公司 | Quantitative prediction method and system for water yield of flooded layer |
-
2013
- 2013-12-26 CN CN201310729924.0A patent/CN103743657A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110178257A1 (en) * | 2010-01-18 | 2011-07-21 | Geoscience Research Institute of Shengli Oilfield Branch, SINOPEC | Novel oil displacement agent and process for preparing the same |
| CN101942994B (en) * | 2010-09-16 | 2013-07-31 | 中国石油天然气股份有限公司 | Quantitative prediction method and system for water yield of flooded layer |
| CN102242625B (en) * | 2011-04-25 | 2012-12-26 | 中国石油化工股份有限公司 | Method for improving recovery ratio of crude oil of oil deposit after polymer flooding |
| CN102424749A (en) * | 2011-10-17 | 2012-04-25 | 东北石油大学 | High mineralization polymer gel and preparation method thereof |
| CN103091225A (en) * | 2013-01-15 | 2013-05-08 | 中国海洋石油总公司 | Method for measuring dynamic retention volume and inaccessible pore size of polymer in core |
Non-Patent Citations (1)
| Title |
|---|
| 周薇等: "一种改进淀粉溶液在多孔介质中的流动及对提高采收率的影响", 《中国海上油气》, vol. 20, no. 5, 31 October 2008 (2008-10-31), pages 321 - 315 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370250A (en) * | 2014-11-10 | 2016-03-02 | 中国石油化工股份有限公司 | Concentration distributing method for injecting chemical agent into stratum from shaft |
| CN105370250B (en) * | 2014-11-10 | 2016-08-31 | 中国石油化工股份有限公司 | The concentration distribution method of chemical agent is injected from pit shaft to stratum |
| CN104568702A (en) * | 2015-01-27 | 2015-04-29 | 中国石油大学(北京) | Method for measuring inaccessible pore volume and inaccessible pore radius of polymer |
| CN105136609A (en) * | 2015-08-05 | 2015-12-09 | 中国石油天然气股份有限公司 | Method and device for measuring mass percentage concentration of coal powder in coal bed gas well output liquid |
| CN105136609B (en) * | 2015-08-05 | 2018-02-02 | 中国石油天然气股份有限公司 | Method and device for measuring mass percentage concentration of coal powder in coal bed gas well output liquid |
| CN106932313A (en) * | 2017-04-24 | 2017-07-07 | 东北石油大学 | A kind of polymer microballoon oil reservoir conformability evaluation method |
| CN106932313B (en) * | 2017-04-24 | 2019-06-14 | 东北石油大学 | A kind of polymer microballoon oil reservoir conformability evaluation method |
| CN107367563A (en) * | 2017-06-08 | 2017-11-21 | 中国石油化工股份有限公司 | Detect the sample-pretreating method of PPG in the oil field mining liquid containing PAM |
| CN107367563B (en) * | 2017-06-08 | 2020-03-17 | 中国石油化工股份有限公司 | Sample pretreatment method for detecting PPG in PAM-containing oilfield produced liquid |
| CN111157073A (en) * | 2020-01-19 | 2020-05-15 | 中国石油大学(北京) | Method and system for measuring retention information of polymer solution in porous medium |
| CN111608643A (en) * | 2020-06-04 | 2020-09-01 | 中国石油大学(华东) | Evaluation method for matching of pre-crosslinked gel particle profile control agent and reservoir parameters |
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Application publication date: 20140423 |