CN208718637U - A kind of grease well acidizing plugging removal effect simulating-estimating device - Google Patents
A kind of grease well acidizing plugging removal effect simulating-estimating device Download PDFInfo
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- CN208718637U CN208718637U CN201821356957.XU CN201821356957U CN208718637U CN 208718637 U CN208718637 U CN 208718637U CN 201821356957 U CN201821356957 U CN 201821356957U CN 208718637 U CN208718637 U CN 208718637U
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Abstract
The utility model belongs to oil field development Simulation evaluation equipment technical field, and in particular to a kind of grease well acidizing plugging removal effect simulating-estimating device.Including sour feed-line, the acid storage tank being connect with sour feed-line one end and the acid-proof pump being set on sour feed-line, the other end of sour feed-line connects core, the core other end connects acid discharge pipeline, core is longitudinally rived as two parts, the formation blockage object of simulation will be uniformly laid in the core rived, two ends for placing the core of the formation blockage object of simulation are respectively arranged with acidproof perforated baffle acidproof perforated baffle under, sour feed-line and acid discharge pipeline respectively correspond the gap setting of core rived, the core for placing the formation blockage object of simulation is placed in rubber tube, upper acidproof perforated baffle acidproof perforated baffle under is located in rubber tube, place two part sealed sets of the core of the formation blockage object of simulation, place sealed set between the core and rubber tube of the formation blockage object of simulation.
Description
Technical field
The utility model belongs to oil field development Simulation evaluation equipment technical field, and in particular to a kind of grease well acidizing solution
Stifled effect simulation evaluating apparatus.
Background technique
Currently, in oil-water well development process, low-permeability oil deposit producing well liquid measure, which gradually decreases, fills the water well pressure is gradually risen
Height is such oil reservoir development common problem, for this purpose, researcher has carried out a large amount of increasing injection technique both at home and abroad
Technology and the research and development of working solution system, commonplace common recognition is that low-permeability oil deposit mostly takes waterflooding extraction, the appearance of tamper
Will cause the above problem with formation, main cause has: the incompatibility of an outside fluid and formation fluid water easy to form is insoluble
Property dirt, two formation temperatures reduce and it is aqueous raising cause part oil-soluble heavy organic matter be precipitated, three external low mineralization fluids
It causes the clay mineral contents such as illite, montmorillonite to expand, results in blockage, the flowing of four fluids causes rock particles to migrate, and blocks
Fluid course, five temperature, pressures variation, causes carbon dioxide gas to escape, and generates water-insoluble carbonate scale.
In view of the above problems and reason, domestic and international oil field development researcher have developed series for different reservoir feature
Targetedly acid fluid system, but generally all evaluated by conventional rock core displacement device and to the direct dissolution of tamper,
Just for nocuity of the acid solution to stratum rock permeability and the dissolution rate to tamper, and truth is low permeability oil field
Pressure break is mostly carried out, man-made fracture is formd in the earth formation and inserts the proppants such as haydite, quartz sand, provides opposite formation rock
High hundreds of to tens of thousands of times of the supporting crack of stone permeability, and the main reason for resulting in blockage is that various tampers are deposited in above-mentioned split
In seam, for this underground truth of more preferable simulation, needs to design a kind of acidification de-plugging evaluating apparatus, improve acid fluid system
The practical application of research and development and evaluation.
Summary of the invention
The purpose of this utility model is that providing a kind of grease well acidizing de-plugging effect aiming at the problems existing in the prior art
Fruit simulating-estimating device, can solution of the Simulation evaluation acid solution to the tampers such as dirt, wax, colloid, asphalitine in formation fracture indoors
Except effect, while it can be used for the research and development of acid formula and the optimization of additive concentration.
The technical solution of the utility model is:
A kind of grease well acidizing plugging removal effect simulating-estimating device, including sour feed-line and sour feed-line one end connect
The other end of the acid storage tank connect and the acid-proof pump being set on sour feed-line, sour feed-line connects core, the core
The other end connects acid discharge pipeline, and the core is longitudinally rived as two parts, and simulation will be uniformly laid in the core rived
Two ends of formation blockage object, the core of the formation blockage object of the placement simulation are respectively arranged with acidproof porous gear
Plate acidproof perforated baffle under, the sour feed-line and acid discharge pipeline respectively correspond the gap setting of core rived, institute
The core of the formation blockage object for the placement simulation stated is placed in rubber tube, and the upper acidproof perforated baffle is acidproof porous under
Baffle is located in rubber tube, places two part sealed sets of the core of the formation blockage object of simulation, places the stratum of simulation
Sealed set between the core and rubber tube of tamper.
Specifically, two end faces of the core of the formation blockage object of the described placement simulation and upper acidproof perforated baffle and under
The corresponding setting of the shape of acidproof perforated baffle.
Specifically, two parts of the core of the formation blockage object of the placement simulation are tightly wrapped by glue or filament
Sealing is placed between the core and rubber tube of the formation blockage object of simulation through the seamless stickup of glue.
Specifically, pressure difference is arranged between the both ends of the core measures by-pass line, it is arranged on pressure difference measurement by-pass line resistance to
Sour differential manometer.
Specifically, acidproof flowmeter is arranged on the acid discharge pipeline.
Specifically, the diameter of the core is 12.54cm, length 3-5cm.
The beneficial effects of the utility model are: by the formation blockage object for filling simulation in the column rock core rived, very
The truth of grease well plugging is simulated on the spot, improves the reliability of research and development and evaluation experimental, and can simulate and comment indoors
Valence acid solution can be used for acid formula to the releasing effects of the tampers such as dirt, wax, colloid, asphalitine in formation fracture
The optimization of research and development and additive concentration.The utility model structure is shown in simply, easy to operate, solves conventional acid fluid system evaluation side
Method can not simulated formation blocking truth insufficient problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1 column core, 2 rubber tubes, the formation blockage object of 3 simulations, acidproof perforated baffle, 6 under acidproof perforated baffle, 5 on 4
Sour feed-line, 7 acid-proof pumps, 8 acid storage tanks, 9 acid discharge pipelines, 10 acidproof flowmeters, 11 pressure differences measure by-pass line, 12 resistance to acid fracturings
Difference meter.
Specific embodiment
It is as shown in Figure 1 a kind of structural schematic diagram of grease well acidizing plugging removal effect simulating-estimating device, including acid conveying
Pipeline 6, acid storage tank connect with sour 6 one end of feed-line, 8 with the acid-proof pump 7 that is set on sour feed-line 6, sour delivery pipe
The other end of line 6 connects core 1, and the diameter of the core 1 is 12.54cm, length 3-5cm.1 other end of core
Acid discharge pipeline 9 is connected, acidproof flowmeter 10 is set on the acid discharge pipeline 9.The core 1 is longitudinal to rive as two portions
Point, the formation blockage object 3 of simulation, the core of the formation blockage object 3 of the placement simulation will be uniformly laid in the core 1 rived
1 two ends be respectively arranged with acidproof perforated baffle 4 and under acidproof perforated baffle 5, between the both ends of the core 1
Pressure difference is set and measures by-pass line 11, acidproof differential manometer 12 is set on pressure difference measurement by-pass line 11.The sour feed-line 6 and row
Acid tube line 9 respectively corresponds the gap setting of core 1 rived, and the core 1 of the formation blockage object 3 of the placement simulation is placed on
In rubber tube 2, upper acidproof perforated baffle 4 acidproof perforated baffle 5 under is located in rubber tube 2, places the stratum of simulation
Two part sealed sets of the core 1 of tamper 3 are placed close between the core 1 and rubber tube 2 of the formation blockage object 3 of simulation
Envelope setting.
Two end faces of the core 1 of the formation blockage object 3 of the described placement simulation and upper acidproof perforated baffle 4 and under it is resistance to
The corresponding setting of shape of sour perforated baffle 5.Two parts of the core 1 of the formation blockage object 3 of the placement simulation pass through
Glue or filament tightly wrap sealing, place between the core 1 and rubber tube 2 of the formation blockage object 3 of simulation through glue seamless sticky
Patch.
Laboratory experiment evaluation is carried out to grease well acidizing plugging removal effect using simulating-estimating device provided by the utility model
When, the Preparatory work of experiment stage is carried out first: taking the natural core in the stratum of target well, and drilling through diameter using core-drill(ing) machine is 2.54cm's
Column natural rock stem, the core 1 for the use of core cutter Cutting Length being 3-5cm；Then, above-mentioned core 1 is vertically put
Set, its longitudinal direction rived using external force, the two parts rived are laid flat, thereto one piece lay the tamper that is taken out from shaft bottom or
Another piece is covered by rock core original shape upper after uniformly laying according to the formation blockage object 3 of the simulation of experimental analysis preparation
Face is tightly wrapped using adhesive tape or filament, at this point, 1 both ends of the surface of core of the internal formation blockage object 3 filled with simulation are no longer in
Upper acidproof perforated baffle 4 acidproof perforated baffle 5 under is cut into same shape according to the shape of two end faces by existing circle；Its
Secondary, the 1 side surrounding coating glue of core of the formation blockage object 3 internally filled with simulation is filled in rubber tube 2, after bonding
By the upper acidproof perforated baffle 4 cut before and under acidproof perforated baffle 5 fill in rubber tube 2, and to 1 surrounding of core and rubber
Coating glue in gap between cylinder 2；Again, after glue is fully cured, apply confining pressure on the outside of rubber tube 2, it is ensured that rubber tube 2
Inner wall and core 1, upper acidproof perforated baffle 4 and under leakproofness between acidproof perforated baffle 5 under high pressure.
Experimental stage: acid solution is injected from above-mentioned 1 one end of core using acid-proof pump 7, starts acidproof differential manometer 12 and the other end
The acidproof flowmeter 10 in exit records the stream of the flow of acid-proof pump 7, the pressure difference value of acidproof differential manometer 12, acidproof flowmeter 10
Amount calculates acid solution to the solution rate of tamper according to above data, evaluates the acid fluid system adaptability of technology, it is real to complete simulation
It tests.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (6)
1. a kind of grease well acidizing plugging removal effect simulating-estimating device, including sour feed-line (6) and sour feed-line (6) one
The other end of the acid-proof pump (7) holding the acid storage tank 8 of connection and being set on sour feed-line (6), sour feed-line (6) connects rock
Core (1), the core (1) other end connect acid discharge pipeline (9), which is characterized in that it is two that the core (1), which is longitudinally rived,
A part will uniformly lay the formation blockage object (3) of simulation, the formation blockage of the placement simulation in the core rived (1)
Two ends of the core (1) of object (3) be respectively arranged with acidproof perforated baffle (4) and under acidproof perforated baffle (5), it is described
Sour feed-line (6) and acid discharge pipeline (9) respectively correspond the gap setting rived of core (1), the described placement simulation
The core (1) of formation blockage object (3) is placed in rubber tube (2), the upper acidproof perforated baffle (4) and under acidproof porous gear
Plate (5) is located in rubber tube (2), places two part sealed sets of the core (1) of the formation blockage object (3) of simulation, places
Sealed set between the core (1) and rubber tube (2) of the formation blockage object (3) of simulation.
2. grease well acidizing plugging removal effect simulating-estimating device according to claim 1, which is characterized in that the placement mould
Two end faces of the core (1) of quasi- formation blockage object (3) and upper acidproof perforated baffle (4) and under acidproof perforated baffle (5)
The corresponding setting of shape.
3. grease well acidizing plugging removal effect simulating-estimating device according to claim 1, which is characterized in that the placement mould
Two parts of the core (1) of quasi- formation blockage object (3) tightly wrap sealing by glue or filament, and the stratum for placing simulation is stifled
Pass through the seamless stickup of glue between the core (1) and rubber tube (2) of plug thing (3).
4. grease well acidizing plugging removal effect simulating-estimating device according to claim 1, which is characterized in that the core
(1) pressure difference is set between both ends and measures by-pass line (11), acidproof differential manometer (12) are set in pressure difference measurement by-pass line (11).
5. grease well acidizing plugging removal effect simulating-estimating device according to claim 1, which is characterized in that the acid tube
Acidproof flowmeter (10) are set on line (9).
6. grease well acidizing plugging removal effect simulating-estimating device according to claim 1, which is characterized in that the core
(1) diameter is 12.54cm, length 3-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821356957.XU CN208718637U (en) | 2018-08-22 | 2018-08-22 | A kind of grease well acidizing plugging removal effect simulating-estimating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821356957.XU CN208718637U (en) | 2018-08-22 | 2018-08-22 | A kind of grease well acidizing plugging removal effect simulating-estimating device |
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| Publication Number | Publication Date |
|---|---|
| CN208718637U true CN208718637U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821356957.XU Active CN208718637U (en) | 2018-08-22 | 2018-08-22 | A kind of grease well acidizing plugging removal effect simulating-estimating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018104A (en) * | 2019-04-28 | 2019-07-16 | 中国华能集团清洁能源技术研究院有限公司 | System and method for evaluating reservoir acidification reconstruction effect |
| CN111175109A (en) * | 2020-03-01 | 2020-05-19 | 东北石油大学 | Artificial flat plate core crack manufacturing method |
| CN114687714A (en) * | 2022-04-12 | 2022-07-01 | 中国矿业大学 | Nano-particle composite low-salinity water-enhanced CO2Method of injection capability |
-
2018
- 2018-08-22 CN CN201821356957.XU patent/CN208718637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018104A (en) * | 2019-04-28 | 2019-07-16 | 中国华能集团清洁能源技术研究院有限公司 | System and method for evaluating reservoir acidification reconstruction effect |
| CN111175109A (en) * | 2020-03-01 | 2020-05-19 | 东北石油大学 | Artificial flat plate core crack manufacturing method |
| CN114687714A (en) * | 2022-04-12 | 2022-07-01 | 中国矿业大学 | Nano-particle composite low-salinity water-enhanced CO2Method of injection capability |
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Address after: No. 08 East Road, 50 meters south of the intersection of Subei Road and Xindong Road, Puyang City, Henan Province, 457001 Patentee after: Henan Ruitong Energy Engineering Technology Co.,Ltd. Address before: 457000 North Road, 200m east of the intersection of Wuyi Road and Wenming Road, Puyang City, Henan Province Patentee before: PUYANG HUARUITONG ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. |
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