CN108825209A - A kind of research oil-well cement ring alters the device and method of slot closure rule - Google Patents
A kind of research oil-well cement ring alters the device and method of slot closure rule Download PDFInfo
- Publication number
- CN108825209A CN108825209A CN201810636720.5A CN201810636720A CN108825209A CN 108825209 A CN108825209 A CN 108825209A CN 201810636720 A CN201810636720 A CN 201810636720A CN 108825209 A CN108825209 A CN 108825209A
- Authority
- CN
- China
- Prior art keywords
- oil
- blocking agent
- different
- oil well
- rule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 78
- 239000004568 cement Substances 0.000 title claims abstract description 47
- 238000011160 research Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002981 blocking agent Substances 0.000 claims abstract description 63
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 35
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910000648 terne Inorganic materials 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 238000013508 migration Methods 0.000 claims abstract description 5
- 230000005012 migration Effects 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229940099259 vaseline Drugs 0.000 claims description 9
- 239000012465 retentate Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 241000500881 Lepisma Species 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 229910001128 Sn alloy Inorganic materials 0.000 claims 1
- UDRRLPGVCZOTQW-UHFFFAOYSA-N bismuth lead Chemical compound [Pb].[Bi] UDRRLPGVCZOTQW-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 235000020681 well water Nutrition 0.000 description 5
- 239000002349 well water Substances 0.000 description 5
- -1 polypropylene cyanogen Polymers 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical class [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/005—Monitoring or checking of cementation quality or level
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Quality & Reliability (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of research oil-well cement rings to alter the device and method that slot blocks rule, wherein it includes blocking agent injection device, oil well model, multiple groups bismuth terne metal thin slice, steel column that research oil-well cement ring, which alters slot to block the device of rule,；The intermediate receptacle of blocking agent injection device is connect with oil well model, and the perforation of oil well model is separately connected the core of a different permeabilities；The outer tube of oil well model is formed by two semi-circular tube make-ups, and inner and outer tubes are coaxially twisted admittedly between top cover and pedestal, and steel column is for blocking perforation；Multiple groups width 25mm bismuth terne metal thin slice, one group is thickness is identical, length is identical, bending shape is different multiple bismuth terne metal pieces；One group identical for length, the bismuth terne metal piece that shape is identical, thickness is different；One group identical for thickness, the bismuth terne metal piece that shape is identical, length is different.The plastic situation of various blocking agents in the crack of observable various forms of the present invention, migration rule of the blocking agent in core and cement sheath in interstitial space.
Description
Technical field
The present invention relates to technical field of oil production engineering, and in particular to a kind of research oil-well cement ring alters the dress of slot closure rule
It sets and method.
Background technique
In oil extraction operation, oil well produces water, influences on economic benefit very big, in some instances it may even be possible to certain barrelers be caused to turn
Become uncommercial oil well.Well water is likely to occur the region of bypassed oil that hydrosphere closes, infuses as taken measures not in time in stratum
Enter water to detour and mistake, to reduce recovery ratio, causes greatly to waste.Well water is made it is also possible to destroy reservoir structure
At sand production；Also it will increase relative density of fluid after well water, increase shaft bottom oil pressure, flowing well is made to switch to pumpingh well；Separately
Outside, well water can corrode underground equipment, may cause accident when serious, increase simultaneously as producing water, will necessarily make ground
Dehydration expense increases.And well water takes increase lifting rate, the method with water band oil be it is uneconomical, worthless, it is water detection, stifled
Water be must be solved the problems, such as in time in oil field development and oilfield chemistry research important topic.
With the extension of oil field development time and secondary, Tertiary infilling recovery scheme implementation, oil field subsurface picture is more next
It is more complicated, discovery to alter slot well also more and more.Since that alters slot, especially multi-section multi-layer alters slot, straticulate exploration is upset, has caused
Serious interlayer interference.Both at home and abroad at present oilwell water shutoff practical activity prove, water-blocking operation fail the reason of, more than half
Be due to that cannot recognize and determine all kinds of differences for altering slot and its property, in Correct Analysis oil well difference alter groove shape,
Size is particularly significant, because the different shape for altering slot directly determines to alter in slot blocking agent plugging effect and quality and blocking agent in difference
State, directly affect the development effectiveness in oil field.
Currently, existing chemical water shutoff method is mainly general injection blocking agent, different blocking agents are not distinguished in difference
The injection situation in slot is altered, due to having very big difference in parameters such as different crack inner capillary tube power, pressure-bearings, general injection is stifled
Agent will cause great waste, and plugging effect is difficult to accurately estimate, so, it is real that simulation oil well crack is carried out in laboratory
Test it is particularly important, by injecting blocking agent in the crack to different shape, blocking agent envelope metric rule and suitable in overall merit crack
Injection parameter.
Summary of the invention
It is an object of the present invention to provide a kind of research oil-well cement rings to alter the device that slot blocks rule, and this method is used
Solve the problems, such as that present oilwell water shutoff can not consider that slot property is altered in underground, it is a further object to provide this researchs
Oil-well cement ring alters slot and blocks the method that the device of rule carries out experimental study.
The technical solution adopted by the present invention to solve the technical problems is：This research oil-well cement ring alters slot and blocks rule
Device include blocking agent injection device, oil well model, multiple groups bismuth terne metal thin slice, steel column；Blocking agent injection device by constant-flux pump,
Intermediate receptacle, pressure gauge, six-way valve composition, constant-flux pump connect intermediate receptacle, and intermediate receptacle is connected by six-way valve and oil well model
It connects, pressure gauge is mounted on six-way valve, and the perforation of oil well model is separately connected the core of a different permeabilities；Oil well model packet
Inner tube, outer tube, top cover, pedestal are included, outer tube is formed by two semi-circular tube make-ups, and inner tube, outer tube upper and lower end both ends all have spiral shell
Line has a circular protrusions among pedestal, and circular protrusions have external screw thread, and pedestal outer has internal screw thread, and inner and outer tubes are coaxial
It twists admittedly between top cover and pedestal, there is blocking agent injection hole among top cover, one-to-one perforation is arranged in inner and outer tubes, and steel column is used
Vaseline is used to block perforation after smearing；Multiple groups width 25mm bismuth terne metal thin slice, one group for thickness is identical, length is identical,
The different multiple bismuth terne metal pieces of bending shape；One group identical for length, the bismuth terne metal that shape is identical, thickness is different
Piece；One group identical for thickness, the bismuth terne metal piece that shape is identical, length is different.
It is provided with sealing at the docking that two semi-circular tube make-ups are formed in above scheme, prevents cement from leaking.
In above scheme there are two oil well models, the inner tube high 600mm of one of oil well model, internal diameter 140mm, wall thickness
5mm；Outer tube high 600mm, internal diameter 200mm, wall thickness 5mm；The inner tube of another oil well model high 300mm, internal diameter 140mm, wall thickness
5mm, outer tube high 300mm, internal diameter 200mm, wall thickness 5mm, with the closure rule in the crack for comparing different length.
Bismuth terne metal sheet thickness >=0.5mm in above scheme, for being bent into various shape.
Bismuth terne metal sheet thickness is 0.5mm, 0.8mm, 1mm in above scheme, is selected among 2mm, 3mm.
The research oil-well cement ring alters slot and blocks the method that the device of rule researches：
After steel column is smeared with vaseline, it is inserted into perforation respectively, for blocking perforation；To annular space between inner tube and outer tube
Cement is injected, the bismuth terne metal thin slice of multiple and different thickness, different shape, different length is against into steel column insertion cement respectively
In, each bismuth terne metal piece endpoint is stayed in respectively at two perforations, and after cement solidification, being heated to 50 DEG C applies steel column outer wall
The vaseline smeared melts, and extracts steel column out, then the oil well model with cementing concrete ring is warming up to 100 DEG C, makes bismuth terne metal
Piece is melted in cement, is flowed out to outside oil well model by perforation, and is gone out remaining liquid alloy with 100 DEG C of boiled water, is made
Make the cement sheath with different shape, different length crack；Then by oil well model and blocking agent note with cementing concrete ring
Enter device connection, and a core will be connected at each perforation, blocking agent is injected into cement sheath, after blocking agent is fully cured, takes out
Cement sheath and core carry out slice axially and radially, under the microscope observe various forms crack in various blocking agents at
Migration rule of the blocking agent retentate blocking agent in core and cement sheath in gluey condition, distribution, shape characteristic and interstitial space
Rule, to sum up closure rule of the different blocking agents in different cracks.
The invention has the advantages that：
Current water shutoff in oil well is only to inject blocking agent according to blocking agent property and geological condition roughly come rough selection,
Not only plugging effect is bad, and closure success rate is low, is also easy to appearance and blocks duration short situation.Sum up its reason, mainly
It is to understand very little to altering slot property in oil well and alter the match condition information of slot and blocking agent, underground address situation is complicated, alters slot
Form, size are even more to be difficult to survey.The present invention is low using bismuth terne metal fusing point and can make very thin, is easy to be converted into each
Kind this feature of shape, simulation underground are difficult to the form in the various cracks measured, melt bismuth terne metal thin slice by heating,
Crack is formed in cement sheath, then injects different blocking agents into model, can be very good various in the crack of observation various forms
The plastic situation of blocking agent, distribution, shape characteristic, fortune of the blocking agent retentate blocking agent in core and cement sheath in interstitial space
Rule is moved, so that closure rule of the different blocking agents in different cracks is summed up, by rule application and practical oil field, it will greatly
Ground improves the utilization rate and plugging effect of blocking agent, greatly reduces the loss in oil field development, improves oil well output.
Detailed description of the invention
Fig. 1 is that present invention research oil-well cement ring alters the structural schematic diagram that slot blocks the device of rule；
Fig. 2 is outer tube and inner tube main view in the present invention；
Fig. 3 is outer tube and inner tube top view in the present invention；
Fig. 4 is the schematic diagram of pedestal of the present invention；
Bismuth terne metal thin slice side view in Fig. 5 step 2 of the present invention；
Bismuth terne metal thin slice side view in Fig. 6 step 7 of the present invention；
Fig. 7 present invention is Step 8: bismuth slicker solder closes thin gold wafer side view in nine；
Fig. 8 present invention is Step 10: bismuth terne metal thin slice side view in 11.
In figure：1 constant-flux pump, 2 intermediate receptacles, 3 pressure gauges, 4 six-way valves, 5 oil well models, 6 graduated cylinders, 7 cores.
Specific embodiment
The present invention will be further described below with reference to the drawings：
As shown in Figure 1, it is this research oil-well cement ring alter slot block rule device include blocking agent injection device, oil well model 5,
Core 7, bismuth terne metal thin slice, steel column, blocking agent injection device is by constant-flux pump 1, intermediate receptacle 2, pressure gauge 3,4 groups of six-way valve
At constant-flux pump 1 connects intermediate receptacle 2, and intermediate receptacle 2 is connect by six-way valve 4 with oil well model 5, and it is logical that pressure gauge 3 is mounted on six
On valve 4, there are two cores 7, and the permeability of two cores 7 is different, and each core 7 is respectively used to the perforation phase with oil well model 5
Connection, core 7 can be used to simulate the strata condition of different permeabilities.As shown in Figure 2 and Figure 3, oil well model 5 include inner tube, it is outer
Pipe, top cover, pedestal, outer tube are formed by two semi-circular tube make-ups, and inner tube, outer tube upper and lower end both ends all have screw thread, such as Fig. 4 institute
Show there are a circular protrusions among pedestal, circular protrusions have external screw thread, and pedestal outer has internal screw thread, and inner and outer tubes are coaxial
It twists admittedly between top cover and pedestal, two semicanals, at a detachable oil-pipe external wall, can be repeated real by pedestal fixed-analog
It tests；There is blocking agent injection hole among top cover, for connecting blocking agent injection device, blocking agent injects bore dia 10mm in present embodiment,
One-to-one perforation is arranged in inner and outer tubes, and perforation is used to simulation oil well perforation, and perforation diameter is 12mm in present embodiment,
When being tested into inner and outer tubes Process of Cementing, two steel columns are respectively used to block perforation after being smeared with vaseline；Ginseng
Read Fig. 5, multiple groups width 25mm bismuth terne metal thin slice, one group is thickness is identical, length is identical, bending shape is different multiple bismuths
Terne metal piece；One group identical for length, the different bismuth terne metal piece of shape same thickness；One group identical for thickness, shape
The different bismuth terne metal piece of equal length.
In order to which the closure for comparing the crack of different length is regular, two oil well models, one of oil well mould are made respectively
5 inner tube of type high 600mm, internal diameter 140mm, wall thickness 5mm；Outer tube high 600mm, internal diameter 200mm, wall thickness 5mm；Another oil well model
5 inner tube high 300mm, internal diameter 140mm, wall thickness 5mm, outer tube high 300mm, internal diameter 200mm, wall thickness 5mm.
Research oil-well cement ring alter slot block rule method the specific steps are：
Research oil-well cement ring is connected by Fig. 1 and alters the device that slot blocks rule, blocking agent is put into intermediate receptacle 2, is opened flat
Stream pump 1 injects blocking agent with the constant-velocity of 0.3ml/min, and blocking agent is injected into oil well model 5 by six-way valve 4, passes through bottom
Perforation is injected into cement and core 7, the external graduated cylinder 6 of core 7, when core 7 corresponding with perforation begins with blocking agent exudation, is stopped
Inject blocking agent.
Step 1：One combination of oil well model 5 is installed, after two steel columns are smeared with vaseline, insertion is penetrated respectively
Kong Zhong injects cementing concrete into the annular space between inner tube and outer tube for blocking two perforations.
Step 2：Prepare with a thickness of 0.5mm, the straight bismuth terne metal thin slice of a length of 600mm（Refering to Fig. 5）Against steel column
It is inserted into cement.
Step 3：After theing cement solidifies, melts vaseline for 50 DEG C the heating of oil well model 5, extract the steel column in perforation out.
Step 4：Oil well model 5 is put into high/low temperature experimental box, 100 DEG C is heated to, melts alloy sheet, then use
100 DEG C of boiling water rinse, and alloy sheet fusing Liquid Residue is prolonged perforation and is developed.
Step 5：The oil well model 5 that step 4 obtains is connect with blocking agent injection device, and ready two kinds are permeated
Rate core 7 is mounted on perforation, core 7 is connected with graduated cylinder 6, downwards injection of polymer gel-like blocking agent in perforation, until
Corresponding core 7 has blocking agent outflow.After blocking agent plastic, core 7 is removed, opens oil well model outer tube, is taken out after blocking
Cementing concrete.
Step 6：By two pieces of cores 7 and cement sheath axial slices and the radial section up and down after the closure of taking-up, it is placed on aobvious
Micro- microscopic observation, observes distribution of the blocking agent in core 7 and cement sheath, shape characteristic, blocking agent retentate in interstitial space
Migration rule research of the blocking agent in core 7 and cement sheath.
Step 7：Oil well model is cleaned up, with a thickness of 0.8mm, 1mm, 2mm, 3mm, length is the flat of 600mm for replacement
Straight alloy sheet（Refering to Fig. 6）It is tested, repeats step 1 to step 6.
Step 8：Oil well model is cleaned up, replacement is with a thickness of 0.5mm, the alloy sheet of length 600mm and by alloy sheet
It is converted into Fig. 7 shape, is tested, repeats step 1 to step 6.
Step 9：Oil well model is cleaned up, is replaced with a thickness of 0.8mm, 1mm, 2mm, the alloy sheet of 3mm is simultaneously converted into figure
7 shapes, and tested respectively, step 1 is repeated to six.
Step 10：Oil well model is cleaned up, replacement with a thickness of 0.5mm alloy sheet and is converted into Fig. 8 shape, and respectively into
Row experiment repeats step 1 to step 6.
Step 11：Oil well model is cleaned up, is replaced with a thickness of 0.8mm, 1mm, 2mm, the alloy sheet of 3mm is simultaneously converted into
Fig. 8 shape is tested respectively, repeats step 1 to step 6.
Step 12：The combination of another oil well model is installed, the alloy sheet that replacement length is 300mm repeats step
Two are tested to step 11.
Step 13：Oil well model 5 is cleaned up, the polypropylene cyanogen Gelling Plugging Agent in step 5 be changed to
The speed of 0.3ml/min injects gelled plugging agent, repeats step 1 to step 12, is tested.
Step 14：Oil well model 5 is cleaned up, the polypropylene cyanogen Gelling Plugging Agent in step 5 be changed to
The speed of 0.3ml/min injects waterglass class blocking agent, repeats step 1 to step 12, is tested.
Step 15：Oil well model 5 is cleaned up, the polypropylene cyanogen Gelling Plugging Agent in step 5 be changed to
The speed of 0.3ml/min injects phenol formaldehyde resin class blocking agent, repeats step 1 to step 12, is tested.
It can be very good the plastic situation of various blocking agents in the crack of observation various forms with the experimental method, be distributed shape
State, shape characteristic, migration rule of the blocking agent retentate blocking agent in core 7 and cement sheath in interstitial space, to sum up not
With closure rule of the blocking agent in different cracks, rule is applied to practical oil field, it will greatly improve the utilization rate of blocking agent
And plugging effect, the loss in oil field development is greatly reduced, oil well output is improved.
Claims (6)
1. a kind of research oil-well cement ring alters the device that slot blocks rule, it is characterised in that：This research oil-well cement ring alters slot
The device for blocking rule includes blocking agent injection device, oil well model（5）, multiple groups bismuth terne metal thin slice, steel column, blocking agent injection dress
It sets by constant-flux pump（1）, intermediate receptacle（2）, pressure gauge（3）, six-way valve（4）Composition, constant-flux pump（1）Connect intermediate receptacle（2）, in
Between container（2）Pass through six-way valve（4）With oil well model（5）Connection, pressure gauge（3）It is mounted on six-way valve（4）On, oil well model
（5）Perforation be separately connected the cores of a different permeabilities（7）；Oil well model（5）Including inner tube, outer tube, top cover, pedestal,
Outer tube is formed by two semi-circular tube make-ups, and inner tube, outer tube upper and lower end both ends all have screw thread, there is a circular protrusions among pedestal,
Circular protrusions have external screw thread, and pedestal outer has internal screw thread, and inner and outer tubes coaxially twist solid between top cover and pedestal, top cover
There is blocking agent injection hole in centre, and one-to-one perforation is arranged in inner and outer tubes, and steel column is used to block perforation after being smeared with vaseline；
Multiple groups width 25mm bismuth terne metal thin slice, one group is closed for multiple bismuth slicker solders that thickness is identical, length is identical, bending shape is different
Gold plaque；One group identical for length, the different bismuth terne metal piece of shape same thickness；One group identical for thickness, the identical length of shape
Spend different bismuth terne metal pieces.
2. research oil-well cement ring according to claim 1 alters the device that slot blocks rule, it is characterised in that：Described two
Sealing is provided at the docking that a semi-circular tube make-up is formed.
3. research oil-well cement ring according to claim 2 alters the device that slot blocks rule, it is characterised in that：The oil
Well model（5）There are two, one of oil well model（5）Inner tube high 600mm, internal diameter 140mm, wall thickness 5mm；Outer tube is high
600mm, internal diameter 200mm, wall thickness 5mm；Another oil well model（5）Inner tube high 300mm, internal diameter 140mm, wall thickness 5mm, outer tube
High 300mm, internal diameter 200mm, wall thickness 5mm.
4. research oil-well cement ring according to claim 3 alters the device that slot blocks rule, it is characterised in that：The bismuth
Terne metal sheet thickness >=0.5mm.
5. research oil-well cement ring according to claim 4 alters the device that slot blocks rule, it is characterised in that：The bismuth
Terne metal sheet thickness is 0.5mm, 0.8mm, 1mm, is selected among 2mm, 3mm.
6. a kind of research oil-well cement ring as claimed in claim 3 alters slot and blocks the method that the device of rule researches,
It is characterized by comprising following steps：
One, it after smearing steel column with vaseline, is inserted into perforation respectively, for blocking perforation；To annular between inner tube and outer tube
Cement is injected in space, and the bismuth terne metal thin slice of multiple and different thickness, different shape, different length is against steel column insertion respectively
In cement, each bismuth terne metal piece endpoint is stayed in respectively at two perforations, and after cement solidification, being heated to 50 DEG C makes outside steel column
The vaseline that wall is smeared melts, and extracts steel column out, then by the oil well model with cementing concrete ring（5）100 DEG C are warming up to, bismuth lead is made
Tin alloy piece is melted in cement, flows out to oil well model by perforation（5）Outside, and with 100 DEG C of boiled water by remaining liquid it closes
Gold is gone out, and the cement sheath with different shape, different length crack is produced；By the oil well model with cementing concrete ring（5）
It is connect with blocking agent injection device, and a core will be connected at each perforation（7）, blocking agent is injected into cement sheath, it is complete to blocking agent
After solidification, cement sheath and core are taken out（7）, carry out slice axially and radially；The crack of various forms is observed under the microscope
In the plastic situations of various blocking agents, distribution, in shape characteristic and interstitial space blocking agent retentate blocking agent in core（7）
With the migration rule in cement sheath, thus sum up different blocking agents in different cracks closure rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636720.5A CN108825209B (en) | 2018-06-20 | 2018-06-20 | A kind of research oil-well cement ring alters the device and method of slot closure rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636720.5A CN108825209B (en) | 2018-06-20 | 2018-06-20 | A kind of research oil-well cement ring alters the device and method of slot closure rule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825209A true CN108825209A (en) | 2018-11-16 |
| CN108825209B CN108825209B (en) | 2019-04-05 |
Family
ID=64142755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810636720.5A Active CN108825209B (en) | 2018-06-20 | 2018-06-20 | A kind of research oil-well cement ring alters the device and method of slot closure rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825209B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131803A (en) * | 2013-05-10 | 2014-11-05 | 中国石油大学(北京) | Experiment method for evaluating shale fracturing crack mesh forming capability |
| CN104314514A (en) * | 2014-10-10 | 2015-01-28 | 中国石油大学(华东) | Visualization experiment device and method for profile control performance evaluation of weak gel of fractured reservoir |
| CN104500034A (en) * | 2014-12-29 | 2015-04-08 | 西南石油大学 | Device and method for evaluating influence of pressure change on completeness of cement sheath |
| CN205538625U (en) * | 2016-02-17 | 2016-08-31 | 中国石油天然气股份有限公司 | Experimental device for it scurries glued intensity of agent to be used for detecting sealing |
| CN106869895A (en) * | 2017-04-07 | 2017-06-20 | 中国石油大学(华东) | A kind of thing mould preparation method of indoor coal petrography hydraulic fracturing cement sheath destruction |
-
2018
- 2018-06-20 CN CN201810636720.5A patent/CN108825209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131803A (en) * | 2013-05-10 | 2014-11-05 | 中国石油大学(北京) | Experiment method for evaluating shale fracturing crack mesh forming capability |
| CN104314514A (en) * | 2014-10-10 | 2015-01-28 | 中国石油大学(华东) | Visualization experiment device and method for profile control performance evaluation of weak gel of fractured reservoir |
| CN104500034A (en) * | 2014-12-29 | 2015-04-08 | 西南石油大学 | Device and method for evaluating influence of pressure change on completeness of cement sheath |
| CN205538625U (en) * | 2016-02-17 | 2016-08-31 | 中国石油天然气股份有限公司 | Experimental device for it scurries glued intensity of agent to be used for detecting sealing |
| CN106869895A (en) * | 2017-04-07 | 2017-06-20 | 中国石油大学(华东) | A kind of thing mould preparation method of indoor coal petrography hydraulic fracturing cement sheath destruction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825209B (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105628506B (en) | Rock fracture simulates sample and preparation method, the simulation test device and method | |
| CN103527185B (en) | Horizontal well physical simulation experiment device and its experimental technique | |
| CN109001438A (en) | A kind of joint seal gas shutoff experimental simulation device and test method | |
| WO2016078165A1 (en) | Simulation apparatus for natural gas hydrate formation drilling | |
| US20060225523A1 (en) | Laboratory apparatus and method for evaluating cement performance for a wellbore | |
| CN103556993A (en) | Simulation experimental analog method for low permeability oilfield planar five-spot well pattern carbon dioxide flooding | |
| CN205538625U (en) | Experimental device for it scurries glued intensity of agent to be used for detecting sealing | |
| CN110359876A (en) | Simulating-estimating device integrated with acidification de-plugging and method are temporarily blocked up in crack | |
| CN110359898A (en) | A kind of fracture-type reservoir cracks seam plugging material selection method in advance | |
| CN108166968B (en) | Experimental system and method for measuring influence of soaking on permeability of compact rock core | |
| CN110761762B (en) | Method for increasing fracturing volume of tight sandstone oil reservoir | |
| CN103674593B (en) | A kind of device and method for simulating the flood pot test of low permeability reservoir pressure break straight well | |
| CN106596400A (en) | Evaluation device and experimental method for cementation quality of second interface for well cementation | |
| NO347414B1 (en) | Anti-channeling sealing particles used in a production section of an oil/gas well, and method of completion and method of production using such particles | |
| CN101476459B (en) | Experimental device and method for simulating real oil well acidation | |
| CN105738277B (en) | For detecting the method that envelope alters agent cementing strength | |
| CN105756650A (en) | Method for realizing staged fracturing of horizontal well by blocking channelling by adopting mixed temporary blocking agent | |
| CN107489405A (en) | Coiled tubing drags abrasive perforating and the method for annular space back-up sand staged fracturing | |
| CN107956459A (en) | A kind of foam injection device and its application method and installation method | |
| CN107725046A (en) | The apparatus and method of capillary force during a kind of evaluation reservoir water | |
| CN104357033B (en) | Blocking agent synergist, the gel containing the blocking agent synergist and preparation method and application | |
| CN103256047A (en) | Method for researching variable mass multiphase flowing regular in horizontal well fracturing completion method | |
| CN106198933B (en) | A kind of device of gradient layer simulation for the weak consolidated formation well cementation intensity of deep water | |
| CN103954731A (en) | Device for simulating influence of dry layer on oil displacement efficiency in water injection process | |
| CN108825209B (en) | A kind of research oil-well cement ring alters the device and method of slot closure rule |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Cheng Inventor after: Zhang Yu Inventor after: Zhao Bowen Inventor after: Huang Bin Inventor after: Song Kaoping Inventor after: Dai Tingge Inventor before: Fu Cheng Inventor before: Huang Bin Inventor before: Song Kaoping Inventor before: Zhang Yu Inventor before: Zhao Bowen Inventor before: Dai Tingge |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |