CN103452533B - Visual horizontal well gravel packing simulation test device - Google Patents
Visual horizontal well gravel packing simulation test device Download PDFInfo
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- CN103452533B CN103452533B CN201310339395.3A CN201310339395A CN103452533B CN 103452533 B CN103452533 B CN 103452533B CN 201310339395 A CN201310339395 A CN 201310339395A CN 103452533 B CN103452533 B CN 103452533B
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- leak
- horizontal well
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- gravel
- simulation
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- 238000004088 simulation Methods 0.000 title claims abstract description 81
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 230000000007 visual effect Effects 0.000 title claims abstract description 25
- 238000012856 packing Methods 0.000 title abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 19
- 239000004576 sand Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 5
- 239000012780 transparent material Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
The invention provides a visual horizontal well gravel packing simulation test device, which comprises: the simulation shaft is provided with a plurality of transparent cylinders, every two transparent cylinders are connected through a metal short cylinder, one end of the simulation shaft is connected with a filling joint, the other end of the simulation shaft is connected with a plug, and a sieve tube penetrates through the simulation shaft; a fluid loss pipeline having a plurality of fluid loss branch pipelines, a plurality of fluid loss sub-pipelines, and a fluid loss main pipeline, the plurality of fluid loss sub-pipelines being connected to the fluid loss main pipeline, each of the transparent cylinders being connected to the plurality of fluid loss branch pipelines, the plurality of fluid loss sub-pipelines on each of the transparent cylinders being connected to one of the fluid loss sub-pipelines; and the backflow pipeline is provided with a plurality of backflow secondary pipelines and a backflow main pipeline, the plurality of backflow secondary pipelines are connected to the backflow main pipeline, and the backflow secondary pipelines are connected with the metal short cylinder. The visual horizontal well gravel packing simulation test device can clearly observe the gravel packing process, greatly improve the test pressure, and improve the gravel packing rate and the sand prevention effect in the horizontal well.
Description
Technical field
The present invention has about a kind of gravel filling sand control technique experimental rig, especially has and fills simulation test device about the visual horizontal well gravel in a kind of technical field of petroleum extraction.
Background technology
In SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL sand control completion process, because load fluid flow direction is vertical with gravel gravity direction, thus its filling rule and straight well also exist basic difference, and especially in long horizontal well, gravel pack technique exists very large technical difficulty.In order to gravel pack rule in research level well, Optimizing construction technique, gravel pack rate and sand controlling result in well of improving the standard, have developed dissimilar SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL experimental rig both at home and abroad.
Existing SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL experimental rig mainly can be divided into three types: the first is not visible experimental rig, and this experimental rig generally adopts sleeve pipe as simulation wellbore hole, can not observe the stowing operation of gravel in horizontal well in process of the test; The second is local visual experimental rig, and this experimental rig adopts the sleeve pipe that visualization window is housed as simulation wellbore hole, and locally can only observe the stowing operation of gravel in horizontal well, observing effect is poor; The third is all-transparent experimental rig, this experimental rig adopts common organic glass as simulation wellbore hole, the whole stowing operation of gravel in horizontal well can be observed, but the test pressure of this device is very limited, the length of simulation wellbore hole is also very restricted, make test gravel-packing process and the actual gravel-packing process of horizontal well there is larger difference, truly can not reflect the actual filling situation of horizontal well.
In addition, in SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL experimental rig, how rinsing the gravel of filling in simulation wellbore hole after off-test is a key issue, and simulation wellbore hole is longer, and the difficulty that gravel rinses in the row of returning is larger.Existing SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL experimental rig does not all provide concrete gravel purging method.
Therefore, be necessary to provide a kind of new SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL experimental rig, overcome above-mentioned defect.
Summary of the invention
The object of this invention is to provide a kind of visual horizontal well gravel and fill simulation test device, it can clear observation gravel-packing process, can improve test pressure widely again, gravel pack rule in research level well, Optimizing construction technique, gravel pack rate and sand controlling result in well of improving the standard.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
The invention provides a kind of visual horizontal well gravel and fill simulation test device, described visual horizontal well gravel is filled simulation test device and is comprised:
Simulation wellbore hole, it has multiple transparent tube, is connected between two between described transparent tube by the short cylinder of metal, one end of described simulation wellbore hole is connected with filling joint, described filling joint is connected with injection car group, and the other end of described simulation wellbore hole is connected with plug, is equipped with screen casing in described simulation wellbore hole;
Leak-off pipeline, it has many leak-off take-off lines, many leak-off time pipelines and a leak-off Trunk Line, described many leak-offs time pipeline is connected on described leak-off Trunk Line, each described transparent tube is connected with many described leak-off take-off lines, many leak-off take-off lines on each described transparent tube are connected with a described leak-off time pipeline respectively;
Return comb line, its have many anti-row's time pipelines and one instead arrange Trunk Line, described many anti-row's time pipelines be connected on described anti-row's Trunk Line, described anti-row time pipeline is connected with the short cylinder of described metal.
In a preferred embodiment, described visual horizontal well gravel is filled simulation test device and is also comprised data collecting system, and described data collecting system is connected with multiple pressure sensor, and each described pressure sensor is connected with each described transparent tube.
In a preferred embodiment, described data collecting system is also connected with multiple video camera, and each described video camera is relative with the short cylinder of each described metal.
In a preferred embodiment, described leak-off time pipeline is provided with flow meter.
In a preferred embodiment, described leak-off time pipeline, described anti-row time pipeline are connected to valve.
In a preferred embodiment, the outer wall spacer sleeve of described transparent tube is provided with steel bushing.
Visual horizontal well gravel of the present invention fills the feature of simulation test device and advantage is: the simulation wellbore hole structure design that the transparent tube adopting transparent material to make and transparent tube and the short cylinder interval of metal are connected, namely clearly can observe gravel-packing process, test pressure can be improved widely again; In addition, this visual horizontal well gravel fills simulation test device, having gravel and returns drainage journey, can rinse the gravel of filling in simulation wellbore hole easily after off-test by returning comb line, the length of simulation wellbore hole can be extended widely, make the flushing of gravel not by the restriction of simulation wellbore hole length; Further, adopt the on-the-spot actual injection car group of gravel packing operations to carry out gravel pack test and the row's of returning flushing, also save the investment of gravel compaction equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that visual horizontal well gravel of the present invention fills simulation test device.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of visual horizontal well gravel and fill simulation test device, it comprises simulation wellbore hole 1, leak-off pipeline 2 and returns comb line 3.Wherein: simulation wellbore hole 1 has multiple transparent tube 11, be connected by the short cylinder 12 of metal between described transparent tube 11 between two, one end of described simulation wellbore hole 1 is connected with fills joint 13, described filling joint 13 is connected with injection car group 4, the other end of described simulation wellbore hole 1 is connected with plug 14, is equipped with screen casing 15 in described simulation wellbore hole 1; Leak-off pipeline 2 has many leak-off take-off lines 21, many leak-off time pipelines 22 and a leak-off Trunk Line 23, described many leak-offs time pipeline 22 is connected on described leak-off Trunk Line 23, each described transparent tube 11 is connected with many described leak-off take-off lines 21, many leak-off take-off lines 21 on each described transparent tube 11 are connected with a described leak-off time pipeline 22 respectively; Return comb line 3 and have many anti-row's time pipelines 31 and anti-row's Trunk Lines 32, described many anti-row's time pipelines 31 are connected on described anti-row's Trunk Line 32, and the secondary pipeline 31 of described anti-row is connected with the short cylinder 12 of described metal.
Specifically, the transparent tube 11 of simulation wellbore hole 1 adopts transparent material to make, its personnel that are convenient to operation observe the test situation in it in outside, the internal diameter of transparent tube 11 is 25cm, thickness is 2.5cm, internal pressure strength is 8MPa, multiple transparent tube 11 is connected in series mutually, be connected by the short cylinder 12 of metal between transparent tube 11 between two, thus composition simulation wellbore hole 1, one end of simulation wellbore hole 1 connects fills joint 13, and its other end connects plug 14, and this filling joint 13 and injects car group 4 and is connected; In the present invention, the short cylinder 12 of metal is made up of stainless steel material, and its length is 10 ~ 20cm, and the length of transparent tube 11 is greater than the length of the short cylinder 12 of metal, and transparent tube 11 is identical with the internal diameter of the short cylinder of metal 12, and the total length of simulation wellbore hole 1 is 50m.
Screen casing 15 is located in simulation wellbore hole 1, it offers multiple sieve aperture 151, for placing gravel to be tested in screen casing 15.
Leak-off pipeline 2 is for discharging the part load fluid in simulation wellbore hole 1, and it can simulate the process of load fluid toward leak-off in stratum.Wherein, an aperture is offered at interval of one meter in the both sides of transparent tube 11, each aperture connects a leak-off take-off line 21, the leak-off take-off line 21 that each transparent tube 11 connects is connected on a leak-off time pipeline 22, and the many leak-offs time pipeline 22 that multiple transparent tube 11 connects is connected on a leak-off Trunk Line 23.Load fluid in simulation wellbore hole 1 is discharged from those leak-off take-off lines 21, those leak-offs time pipeline 22 and leak-off Trunk Line 23.
Return comb line 3 to be made up of many anti-row's time pipelines 31 and anti-row's Trunk Line 32, after end to be tested, injected clear water in simulation wellbore hole 1, the gravel in simulation wellbore hole 1 develops in reflexive comb line 3.Wherein, the many anti-row's time pipelines 31 returning comb line 3 are connected on the short cylinder 12 of multiple metal, anti-comb line 3 can be avoided so to be directly connected with transparent tube 11, and cause the intensity of transparent tube 11 to reduce; Instead arrange time pipeline 31 for many to be connected on anti-row's Trunk Line 32.
The course of work of the present invention is as follows: first, simulation wellbore hole 1 is assembled, screen casing 15 is located in simulation wellbore hole 1, the two ends of simulation wellbore hole 1 seal respectively fills joint 13 and plug 14, then simulation wellbore hole 1 is connected with injection car group 4 with the one end of filling joint 13, afterwards, by leak-off pipeline 2 with return comb line 3 and be connected on transparent tube 11 and the short cylinder 12 of metal.When testing, first, open and inject car group 4, the load fluid with gravel is injected in the screen casing 15 of simulation wellbore hole 1, part load fluid is discharged through the leak-off take-off line 21 of leak-off pipeline 2, those leak-offs time pipeline 22 and leak-off Trunk Line 23, simulate the process of load fluid toward leak-off in stratum, in the process, operating personnel observe the filling process of gravel by multiple transparent tubes 11 of simulation wellbore hole 1; After end to be tested, the row's of the returning Trunk Line 32 returning comb line 3 is connected with injection car group 4, dismantle plug 14, open first row of the returning time pipeline 31 near plug 14, close other row of returning time pipeline 31, huge discharge injected clear water in simulation wellbore hole 1, gravel in simulation wellbore hole 1 is developed, then, open other row of returning time pipeline 31 successively, by the gravel sectional flushing in simulation wellbore hole 1 out, adopt this backwashing manner, effectively can reduce the resistance of the row of returning, not by the restriction of simulation wellbore hole 1 length.
Visual horizontal well gravel of the present invention fills simulation test device, adopt simulation wellbore hole 1 structure design that the transparent tube 11 made of transparent material and transparent tube 11 and metal short cylinder 12 interval are connected, namely clearly can observe gravel-packing process, test pressure can be improved widely again; In addition, this visual horizontal well gravel fills simulation test device, there is gravel and return drainage journey, the gravel of filling in simulation wellbore hole 1 can be rinsed easily by returning comb line 3 after off-test, the length of simulation wellbore hole 1 can be extended widely, make the flushing of gravel not by the restriction of simulation wellbore hole 1 length; Further, adopt the on-the-spot actual injection car group 4 of gravel packing operations to carry out gravel pack test and the row's of returning flushing, also save the investment of gravel compaction equipment.
According to an embodiment of the invention, described visual horizontal well gravel is filled simulation test device and is also comprised data collecting system 5, described data collecting system 5 is connected with multiple pressure sensor 51, and each described pressure sensor 51 is connected with each described transparent tube 11.Those pressure sensors 51 are for measuring in gravel-packing process, and in simulation wellbore hole 1, the pressure at diverse location place changes.
Further, described data collecting system 5 is also connected with multiple video camera 52, and each described video camera 52 is relative with each described metal short cylinder 12.Those video cameras 52 are for recording gravel-packing process.
According to an embodiment of the invention, described leak-off time pipeline 22 is provided with flow meter 221.This flow meter 221 is for measuring the flow of the load fluid flowing through leak-off pipeline 2, and in the present invention, those flow meters 221 can be connected with data collecting system 5, the changes in flow rate in real time record process of the test; Further, described leak-off time pipeline 22, described anti-row time pipeline 31 are connected to valve 222 and valve 311.Valve 222 and valve 311 are for opening or close leak-off time pipeline 22 and anti-row's time pipeline 31.
According to an embodiment of the invention, the outer wall spacer sleeve of described transparent tube 11 is provided with steel bushing (not shown), and those steel bushings can strengthen the intensity of transparent tube 11 further.
The foregoing is only several embodiments of the present invention, those skilled in the art can carry out various change or modification to the embodiment of the present invention according to content disclosed in application documents and not depart from the spirit and scope of the present invention.
Claims (6)
1. visual horizontal well gravel fills a simulation test device, it is characterized in that, described visual horizontal well gravel is filled simulation test device and comprised:
Simulation wellbore hole, it has multiple transparent tube, is connected between two between described transparent tube by the short cylinder of metal, one end of described simulation wellbore hole is connected with filling joint, described filling joint is connected with injection car group, and the other end of described simulation wellbore hole is connected with plug, is equipped with screen casing in described simulation wellbore hole;
Leak-off pipeline, it has many leak-off take-off lines, many leak-off time pipelines and a leak-off Trunk Line, described many leak-offs time pipeline is connected on described leak-off Trunk Line, each described transparent tube is connected with many described leak-off take-off lines, many leak-off take-off lines on each described transparent tube are connected with a described leak-off time pipeline respectively;
Return comb line, its have many anti-row's time pipelines and one instead arrange Trunk Line, described many anti-row's time pipelines be connected on described anti-row's Trunk Line, described anti-row time pipeline is connected with the short cylinder of described metal.
2. visual horizontal well gravel as claimed in claim 1 fills simulation test device, it is characterized in that, described visual horizontal well gravel is filled simulation test device and is also comprised data collecting system, described data collecting system is connected with multiple pressure sensor, and each described pressure sensor is connected with each described transparent tube.
3. visual horizontal well gravel as claimed in claim 2 fills simulation test device, and it is characterized in that, described data collecting system is also connected with multiple video camera, and each described video camera is relative with the short cylinder of each described metal.
4. visual horizontal well gravel as claimed in claim 1 fills simulation test device, it is characterized in that, described leak-off time pipeline is provided with flow meter.
5. visual horizontal well gravel as claimed in claim 1 fills simulation test device, it is characterized in that, described leak-off time pipeline, described anti-row time pipeline are connected to valve.
6. visual horizontal well gravel as claimed in claim 1 fills simulation test device, and it is characterized in that, the outer wall spacer sleeve of described transparent tube is provided with steel bushing.
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| CN201310339395.3A CN103452533B (en) | 2013-08-06 | 2013-08-06 | Visual horizontal well gravel packing simulation test device |
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| CN201310339395.3A CN103452533B (en) | 2013-08-06 | 2013-08-06 | Visual horizontal well gravel packing simulation test device |
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| CN103452533B true CN103452533B (en) | 2016-01-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104196527B (en) * | 2014-08-13 | 2017-06-16 | 中国石油大学(北京) | Multilateral well productivity simulation system and multilateral well productivity simulation experimental technique |
| CN106383219B (en) * | 2016-08-31 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司 | Visual device for simulating dynamic closing of discontinuous sand paving seam and testing method |
| CN108008075B (en) * | 2017-11-30 | 2020-01-07 | 中国石油大学(北京) | Experimental device for be used for simulating loose sandstone oil reservoir sand-retaining medium jam |
| CN111411934B (en) * | 2020-03-29 | 2021-05-07 | 中国石油大学(华东) | Horizontal well sand-water cooperative output and control and exploitation well completion multifunctional experimental system and experimental method thereof |
| CN114320243B (en) * | 2022-03-11 | 2022-05-06 | 中国石油大学(华东) | Natural gas hydrate reservoir multi-branch horizontal well gravel packing simulation experiment system |
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| CN201096769Y (en) * | 2007-09-18 | 2008-08-06 | 中国石油天然气股份有限公司 | Multifunctional sand prevention test device |
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