CN107478547B - A kind of particulate species profile-controlling and plugging agent toughness evaluation method - Google Patents
A kind of particulate species profile-controlling and plugging agent toughness evaluation method Download PDFInfo
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- CN107478547B CN107478547B CN201710669845.3A CN201710669845A CN107478547B CN 107478547 B CN107478547 B CN 107478547B CN 201710669845 A CN201710669845 A CN 201710669845A CN 107478547 B CN107478547 B CN 107478547B
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- plugging agent
- particulate species
- species profile
- tough factor
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- 238000011156 evaluation Methods 0.000 title claims abstract description 18
- 238000002474 experimental method Methods 0.000 claims abstract description 22
- 210000003127 knee Anatomy 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 238000010008 shearing Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
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Abstract
The invention belongs to technical field of oilfield chemistry more particularly to a kind of particulate species profile-controlling and plugging agent toughness evaluation methods.Technical problem to be solved by the invention is to provide a kind of determining and genuine and believable particulate species profile-controlling and plugging agent toughness evaluation methods of tough factor, comprising the following steps: S1, carries out multiple toughness measurement experiment to the particulate species profile-controlling and plugging agent expanded completely；S2, the graph of relation for establishing the tough factor measured and experiment number；S3, the corresponding tough factor of knee of curve in graph of relation is taken to be the tough factor of this particulate species profile-controlling and plugging agent.The present invention carries out multiplicating experiment, makees the graph of relation of tough factor and experiment number, and taking knee of curve to go out corresponding tough factor value is final tough factor, makes evaluation result more genuine and believable in this way.
Description
Technical field
The invention belongs to technical field of oilfield chemistry more particularly to a kind of particulate species profile-controlling and plugging agent toughness evaluation methods.
Background technique
The toughness of water-absorbing material can be used to characterize the strengths in tension and compression of material, and the material of good toughness is by external force
Non-breakable to viscoplasticity is shown, mode of appearance keeps complete, so profile-controlling and plugging agent needs to carry out the toughness of itself
Evaluation；And there are mainly two types of methods for the toughness evaluation method of profile-controlling and plugging agent in the prior art, the first is by profile-controlling and plugging agent
Suspension pass twice through sieve outflow, measuring pressure and flow, the ratio of the pressure difference and flow that pass twice through sieve is
Toughness index, this method have the following disadvantages: the range for the toughness index that this method obtains is larger, exists greatly not true
Qualitative, shearing simulation is inadequate, and shearing number is inadequate；Second is that the particle of expansion is passed twice through sieve, records and leads to twice
The ratio of the maximum pressure crossed, first time pressure and second of pressure is tough factor, and there is also tough factors for this method not
The disadvantages of certainty, shearing simulation is inadequate, and shearing number is inadequate.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of determining and genuine and believable particulate species profile controls of tough factor
Water shutoff agent toughness evaluation method.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of particulate species profile-controlling and plugging agent toughness evaluation
Method, comprising the following steps:
S1, multiple toughness measurement experiment is carried out to the particulate species profile-controlling and plugging agent expanded completely；
S2, the graph of relation for establishing the tough factor measured and experiment number；
S3, the corresponding tough factor of knee of curve in graph of relation is taken to be the toughness system of this particulate species profile-controlling and plugging agent
Number.
Further, the toughness measurement experiment of the step S1 has step are as follows:
A, make particulate species profile-controlling and plugging agent water suction expansion completely；
B, the particle after complete expansion is passed twice through under identical injection rate the sieve of 100 mesh, and recorded twice
By maximum pressure differential Δ P1、ΔP2；
C, according to the maximum pressure differential Δ P passed twice through1、ΔP2And following formula, tough factor is calculated；
In formula: Δ P1Pass through the maximum pressure differential of sieve, MPa for the first time；ΔP2Second of maximum pressure by sieve
Power is poor, MPa.
Further, particle passes through the sieve of 100 mesh under the action of pump pressure in the step B.
Further, 15 toughness measurement experiments are carried out in the step S1.
Compared with the prior art, the advantages of the invention are this method carries out multiplicating experiment, make tough factor and experiment
The graph of relation of number, taking knee of curve to go out corresponding tough factor value is final tough factor, makes evaluation result in this way
It is more genuine and believable.
Detailed description of the invention
Fig. 1 is the graph of relation of the embodiment of the present invention 2.
Specific embodiment
Invention is further described in detail below with reference to embodiment.
Embodiment 1
A kind of particulate species profile-controlling and plugging agent toughness evaluation method of the invention, comprising the following steps:
S1, multiple toughness measurement experiment is carried out to the particulate species profile-controlling and plugging agent expanded completely；
S2, the graph of relation for establishing the tough factor measured and experiment number；
S3, the corresponding tough factor of knee of curve in graph of relation is taken to be the toughness system of this particulate species profile-controlling and plugging agent
Number.
Wherein this method carries out multiplicating experiment, makees the graph of relation of tough factor and experiment number, curve is taken to turn
Pointing out corresponding tough factor value is final tough factor, makes evaluation result more genuine and believable in this way.
Embodiment 2
A kind of particulate species profile-controlling and plugging agent toughness evaluation method of the invention, comprising the following steps:
A, make particulate species profile-controlling and plugging agent water suction expansion completely；
B, the particle after complete expansion is passed twice through under identical injection rate the sieve of 100 mesh, and recorded twice
By maximum pressure differential Δ P1、ΔP2；
C, according to the maximum pressure differential Δ P passed twice through1、ΔP2And following formula, tough factor is calculated；
In formula: Δ P1Pass through the maximum pressure differential of sieve, MPa for the first time；ΔP2Second of maximum pressure by sieve
Power is poor, MPa；
D, it repeats step A to C14 times, measures 15 tough factors in total；
E, the graph of relation of the tough factor measured and experiment number is established；Wherein the graph of relation is as shown in Figure 1；
F, taking the corresponding tough factor of knee of curve in graph of relation is the tough factor of this particulate species profile-controlling and plugging agent.
This method is sheared because the particle after expansion passes through sieve, and particle is destroyed, so second passes through sieve
Resistance is smaller, thus Δ P2< Δ P1, i.e. tough factor ftayIt is therefore a nothing less than 1 is measured；So this method has carried out 15
It is secondary to repeat to test, make the graph of relation of tough factor and experiment number, taking knee of curve to go out corresponding tough factor value is most
Whole tough factor, makes evaluation result more genuine and believable in this way.
Embodiment 3
A kind of particulate species profile-controlling and plugging agent toughness evaluation method of the invention, comprising the following steps:
(1) sieve of 100 mesh is placed in sieve clamper, while the particle expanded is fitted into intermediate receptacle；
(2) displacement is carried out with the speed that is pumped into of 1mL/min by constant-flux pump, records in injection process and records pressure change simultaneously
The liquid of output is collected, until pressure is stablized, obtains the maximum differential pressure injected for the first time；
(3) liquid for the output that step (2) is collected into is again loaded into intermediate receptacle, then by constant-flux pump with 1mL/
The speed that is pumped into of min carries out displacement, and record pressure change is stablized up to pressure, obtains the maximum differential pressure of second of injection；
(4) it is injected for the first time most obtained in the maximum differential pressure of second of injection and step (2) obtained in step (3)
Big pressure difference is calculated by the following formula to obtain tough factor；
Wherein formula are as follows:
In formula: Δ P1The maximum pressure differential of injection for the first time, MPa；ΔP2The maximum pressure differential of second of injection,
MPa；
(5) step (1) is repeated to after (4) five times, and obtained tough factor and experiment number are made into graph of relation；
(6) knee of curve is obtained in the graph of relation obtained in step (5), takes the corresponding tough factor of inflection point, i.e.,
For the tough factor of particle.
The present invention has carried out experiment number more than five times, and obtained tough factor is clear and more genuine and believable.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
The equivalent structure or equivalent flow shift that description of the invention and accompanying drawing content are done is applied directly or indirectly in other correlations
Technical field, similarly include within scope of patent protection of the invention.
Claims (2)
1. a kind of particulate species profile-controlling and plugging agent toughness evaluation method, which comprises the following steps:
S1, multiple toughness measurement experiment, specific toughness measurement are carried out to the same particulate species profile-controlling and plugging agent expanded completely
Experimental procedure are as follows:
S11, make particulate species profile-controlling and plugging agent water suction expansion completely；
S12, the particle after complete expansion is passed twice through under identical injection rate the sieve of 100 mesh, and records and leads to twice
The maximum pressure differential Δ P crossed1、ΔP2；
The maximum pressure differential Δ P that S13, basis pass twice through1、ΔP2And following formula, tough factor is calculated；
In formula: Δ P1Pass through the maximum pressure differential of sieve, MPa for the first time；ΔP2Second of maximum pressure by sieve
Difference, MPa；
S2, the graph of relation for establishing the tough factor measured and experiment number；
S3, the corresponding tough factor of knee of curve in graph of relation is taken to be the tough factor of this particulate species profile-controlling and plugging agent.
2. a kind of particulate species profile-controlling and plugging agent toughness evaluation method according to claim 1, which is characterized in that the step
15 toughness measurement experiments are carried out in S1.
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| CN201710669845.3A CN107478547B (en) | 2017-08-08 | 2017-08-08 | A kind of particulate species profile-controlling and plugging agent toughness evaluation method |
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| CN107478547B true CN107478547B (en) | 2019-09-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034886Y (en) * | 2007-04-30 | 2008-03-12 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pre cross linked gel grain significance testing instrument |
| CN102759604A (en) * | 2012-07-30 | 2012-10-31 | 西安石油大学 | Performance detection method of gel for water shutoff profile control |
| CN105482033A (en) * | 2014-09-19 | 2016-04-13 | 中国石油化工股份有限公司 | Polymer microsphere and preparation method and application thereof |
| CN105802598A (en) * | 2016-04-07 | 2016-07-27 | 中国石油大学(华东) | Polyacrylonitrile sodium salt modified alkali lignin composite gel plugging agent and preparation method thereof |
-
2017
- 2017-08-08 CN CN201710669845.3A patent/CN107478547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034886Y (en) * | 2007-04-30 | 2008-03-12 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pre cross linked gel grain significance testing instrument |
| CN102759604A (en) * | 2012-07-30 | 2012-10-31 | 西安石油大学 | Performance detection method of gel for water shutoff profile control |
| CN105482033A (en) * | 2014-09-19 | 2016-04-13 | 中国石油化工股份有限公司 | Polymer microsphere and preparation method and application thereof |
| CN105802598A (en) * | 2016-04-07 | 2016-07-27 | 中国石油大学(华东) | Polyacrylonitrile sodium salt modified alkali lignin composite gel plugging agent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| "堵水调剖剂的凝胶性能评价方法综述";张明霞 等;《钻采工艺》;20070731;第30卷(第4期);第130-133页 * |
| "预交联聚合物/粘土复合物吸水膨胀颗粒流向改变剂LJ-1的研制";景艳 等;《油田化学》;20051225;第22卷(第4期);第354-357页 * |
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