CN103244071A - Old well plugging method for underground gas storage - Google Patents
Old well plugging method for underground gas storage Download PDFInfo
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- CN103244071A CN103244071A CN2012100288522A CN201210028852A CN103244071A CN 103244071 A CN103244071 A CN 103244071A CN 2012100288522 A CN2012100288522 A CN 2012100288522A CN 201210028852 A CN201210028852 A CN 201210028852A CN 103244071 A CN103244071 A CN 103244071A
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a method for plugging an old well of an underground gas storage, which comprises the following steps: utilizing a cement flow bearing device, adopting filler mixed with superfine cement to squeeze and plug the shot-open air reservoir target layer, and reserving a superfine cement plug; using a cement bearing device, adopting common cement to plug a perforated well section below a target layer of the gas reservoir in an extruding manner, and keeping a cement plug; a cement flow bearing device is utilized, filler mixed with superfine cement is adopted to squeeze and plug a perforated well section above a target layer of the air reservoir, and a superfine cement plug is reserved; selecting a mudstone section with higher permeability aiming at a well section with unqualified well cementation quality above a target layer, and drilling a cement baffle plate after perforation so as to prevent the generation of gas channeling outside the pipe; plugging a target layer and other perforating well sections and waiting for setting under pressure by using a cement flow bearing device; and (4) drilling an integral cement plug, and keeping the cement surface at least 300m above the perforated plugging well section. The invention can effectively save plugging materials and improve the plugging effect.
Description
Technical field
The present invention relates to petroleum gas workover process technology, relate in particular to the permanent shut-in well method in a kind of underground natural gas storage tank.
Background technology
That natural gas has is inflammable, explosive, the characteristic of easy leakage, in construction of storage, the most important thing is to consider the sealing of gas storage, guarantees that namely the natural gas of underground storage can not be uncontrolledly to the well head migration, can not be to non-gas-bearing reservoir migration.China in recent years in construction of storage in conjunction with geology and the production characteristics of oil reservoir, the process expert repeatedly proves and practice for many years, having formed China utilizes sandstone reservoir to build the old well treatment process route in storehouse, this process route and external difference mainly are in the processing of handling that focuses on old well gas-bearing reservoir, in conjunction with the processing of pit shaft, further improved the safety of old well plugged back.But the alternating stresses effect that the old well of underground natural gas storage tank all can bear once big pressure reduction every year has proposed harsh requirement to the long-term effectiveness of shunting in a well, and must take special shut-in well method for blocking for satisfying these requirements.Occurred in the gas storage that has built up at present because the improper sleeve pipe phenomenon of leaking gas outward that causes of plugging technology selection has caused great safety and environmental protection hidden danger.
The on-the-spot general employing at present in oil field common or superfine cement shutoff reservoir and the outer well section of scurrying of pipe, whether the basic pressure testing mode that adopts checks shutoff successful, be not to select the cement particle diameter according to stratum pore throat size, occur sometimes reaching qualified when the plugging effect pressure testing detects, but do not reach the phenomenon of quality requirement when detecting cementing quality; Or the plugging material large usage quantity, plugging effect does not but reach the phenomenon of requirement.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of underground natural gas storage tank old well plugged back method, to improve or to overcome one or multinomial defective of prior art.
Technical solution of the present invention is: a kind of underground natural gas storage tank old well plugged back method, and this method comprises:
S1. utilize cement to hold the stream device, adopt the stifled air reservoir target zone of having penetrated out of filler mixing superfine cement squeeze seal, and keep the superfine cement plug;
S4. utilize cement to hold the stream device, adopt the above perforated interval of filler mixing superfine cement squeeze seal gas shutoff storehouse target zone, and keep the superfine cement plug;
S6. shutoff target zone band is pressed to wait and is coagulated;
S7. the integral cement plug is played in segmentation, and the cement face is retained in the superiors more than the perforation plugged well section.
Aforesaid underground natural gas storage tank old well plugged back method, if having penetrated spud section does not all penetrate out the air reservoir target zone, then behind step S1, also comprise step S2: penetrate out circle, air reservoir target zone top, and adopt filler mixed cement squeeze seal stifled, and pressure testing, test passes.
Preferably, also comprise step S3 behind the step S1: adopt the following perforated interval of ordinary Portland cement squeeze seal gas shutoff storehouse target zone, and keep cement plug.
Preferably, the ordinary Portland cement that adopts among the step S3 is G class g cement commonly used; Among the step S7, be to adopt latex to expand to play the integral cement plug with the full well section of silicon ash corrosion-resistant hyposmosis cement paste.
In one embodiment, between step S4 and S6, also comprise step S5: select the higher mud stone of permeability and sandstone boundary section at the defective well section of the above cementing quality of target zone, the ultra-fine mixed cement of the recycling filler mud dividing plate of fetching water behind elder generation's perforation is with the generation of the outer has channeling of prevention pipe.
Preferably, be to utilize cement to hold the stream device to realize being with the pressure time to coagulate among the step S6.
Characteristics of the present invention and advantage are: the present invention utilizes cement to hold the stream device, the target zone that adopts the shutoff of filler mixing superfine cement to penetrate out; In order to prevent to manage outer has channeling, the defective well section of the above cementing quality of target zone is selected the higher sandstone of permeability and the mud stone section first perforation mud dividing plate of fetching water again that has a common boundary, adopt the method for blocking of positive and negative squeeze method; Target zone adopts band to press and waits the mode of coagulating; Fill casing protection liquid in the whole pit shaft.
According to technique scheme of the present invention, in conjunction with the underground gas storage situation in Liaohe Oil Field, the concrete shutoff scheme of Qi Laojing shut-in well is worked out out in research and development, by on-the-spot successful Application and checking, every index all reaches the requirement of gas storage shut-in well correlation technique, obtain the effect of shunting in a well preferably, can satisfy the requirement of gas storage ordinary production operation, form shut-in well method and characteristics with earth formation specific aim uniqueness.
The present invention is applicable to the construction of storage in domestic each oil field, wherein the Liaohe Oil Field will be set up 2-3 large-scale underground natural gas storage tank recently, to satisfy the demand of the Northeast's natural gas peak-shaving, industrial pipe network and domestic gas, wherein will have the old well of hundreds of mouth need adopt this shut-in well technology to carry out shutoff, so the present invention is with a wide range of applications.
Description of drawings
Figure 1A is former well casing programme schematic diagram.
Figure 1B is the casing programme schematic diagram that utilizes old well plugged back method design of the present invention.
The specific embodiment
The present invention is directed to underground natural gas storage tank characteristics and requirement, the method for blocking of old well is proposed, guarantee that the natural gas that injects the down-hole can not scurry, not scurry to ground from pit shaft and cementing concrete ring interface by interlayer mutually, thereby guarantee ordinary production and air reservoir safety and the environmental protection in the neighbourhood of air reservoir; Prevent interlayer has channeling and leakage in the well, guarantee underground natural gas storage tank economy, effectively operation; Under the service condition that adopt by force in injection, pressure alternately changes, reach the effective shutoff in 50 years.
Particularly, underground natural gas storage tank of the present invention old well plugged back method mainly may further comprise the steps:
S1. utilize cement to hold the stream device, adopt the stifled air reservoir target zone of having penetrated out of filler mixing superfine cement squeeze seal, and keep the superfine cement plug; Cement holds the stream device and not only can be more reliably realizes effectively that band presses Hou Ning, and behind squeezing off, direct upper lifting pipe post well-flushing, and the flushing fluid column pressure does not influence and thes cement solidifies, and has improved the shut-in well quality, has shortened the activity duration.The plugging effect of superfine cement plug and intensity all are better than the light water bod, thus in this invention no longer for realize from down and on play the integral cement plug and it bored.
S3. utilize cement to hold the stream device, adopt the following perforated interval of ordinary Portland cement squeeze seal gas shutoff storehouse target zone, and keep cement plug;
S4. utilize cement to hold the stream device, adopt the above perforated interval of filler mixing superfine cement squeeze seal gas shutoff storehouse target zone;
S6. the time of shutoff target zone is coagulated mode: band is pressed to wait and is coagulated;
S7. adopt latex to expand and silicon ash corrosion-resistant hyposmosis cement paste, the integral cement plug is played in segmentation, and the cement face is retained in the 300m at least more than the perforation plugged well section of the superiors.In the embodiments of the invention, the integral cement plug in the pit shaft is the squeeze note on one side of shutoff on one side, is different from the disposable squeeze note that carries out from top to down in other method.In addition, in the past in the method for blocking cement face generally be retained in cement return dark about, can not reach good shutoff requirement; The present invention determines that with the cement face retention position of integral cement plug this position can reach the shutoff requirement fully, and can save cost in the superiors 300m at least more than the perforation plugged well section, shortens construction period.
Wherein, filler mixing superfine cement can be selected existing product as required for use, namely in superfine cement, add a certain amount of activating agent and polymer solution, improve its in water dispersibility and with the cementitiousness on sleeve pipe, stratum, select particle diameter, the ratio that adds material and the compatibility of cement in addition according to in-place permeability, pore throat size, make performances such as its compressive strength and toughness all surpass common superfine cement, thereby reach the shut-in well requirement of gas storage.
In a preferred embodiment of the present invention, this old well plugged back method may further comprise the steps:
1. utilize cement to hold the stream device, adopt the stifled air reservoir target zone of having penetrated out of filler mixing superfine cement squeeze seal, and keep the superfine cement plug.
2. if having penetrated spud section does not all penetrate out the air reservoir target zone, then need to penetrate out circle, air reservoir target zone top, and adopt filler mixing superfine cement squeeze seal stifled, and pressure testing, test passes, in order to avoid because the circle, top that does not open target zone, thereby cause the has channeling of injection to ground, further guarantee the safety of gas storage whereby.
3. utilize cement to hold the stream device, adopt the following perforated interval of ordinary Portland cement squeeze seal gas shutoff storehouse target zone, and keep cement plug.The plugging effect of this mode is more safe and effective than the mode of common cementing plug.
4. utilize cement to hold the stream device, with the perforated interval more than the target zone of filler mixing superfine cement squeeze seal gas shutoff storehouse, and keep the superfine cement plug.This step is very crucial to this technology of underground gas storage, the plugging effect of upper strata perforated interval is directly connected to the safety of gas storage, if shutoff imprecision, injecting underground natural gas will scurry from here to ground, therefore, this step is conducive to improve safety and the closure of underground natural gas storage tank.
5. (permeability data is provided by geology department to select the higher sandstone of permeability and mud stone boundary well section at the defective well section of the above cementing quality of target zone, mean permeability according to whole block is determined the well section that permeability is higher), elder generation's perforation adopts filler the mixings superfine cement mud dividing plate of fetching water again, manages the generation of outer has channeling with prevention.
6. the time of shutoff target zone and other perforated interval is coagulated mode: utilize cement to hold the stream device and realize being with the pressure time to coagulate, to improve plugging effect.
7. adopt latex to expand and silicon ash corrosion-resistant hyposmosis cement paste, full well section is played the integral cement plug, and the cement face is retained in the above 200-300m of perforation plugged well section, to guarantee the effect of old well plugged back, guarantees the gas storage safe operation.
8. be lowered to the part oil pipe, between oil pipe and sleeve pipe, set up circulation canal.This step is in order to prevent just in case the old well plugged back failure during phenomenon that leaks air, can in time be taked remedial measures such as kill-job in the gas storage running.
9. integral cement plug face to well head is filled casing protection liquid, to prevent the corrosion of old casing.
From the above, underground natural gas storage tank of the present invention old well plugged back method outstanding feature is as follows:
1. utilize cement to hold the stream device, adopt filler mixing superfine cement shutoff gas-bearing reservoir and perforated interval
The characteristics explanation: the present invention adopts cement to hold the stream device not only can more reliably realize band pressure Hou Ning effectively, and behind squeezing off, direct upper lifting pipe post well-flushing, the flushing fluid column pressure does not influence and thes cement solidifies, and has improved the shut-in well quality, has shortened the activity duration.The plugging effect of superfine cement plug and intensity all are better than the light water bod, thus in this invention no longer for realize from down and on play the integral cement plug and it bored.In order to guarantee the plugging effect of gas-bearing reservoir and perforated interval, the present invention has adopted microdilatancy leakproof ultrafine slag mortar architecture, this system has been added a certain proportion of superfine active slag powders and elasticity embolism materials etc. in process of production, can improve its dispersibility in water and with the cementitiousness on sleeve pipe, stratum, improve toughness and the impact resistance of superfine cement.
2. select the particle diameter of cement, ratio and the compatibility of filler according to formation lithology permeability, pore throat size
The characteristics explanation: the different-grain diameter of cement granules screens design according to formation lithology permeability, pore throat size among the present invention, and it is final definite by the ground simulation experiment, especially the shutoff at low pressure leakiness stratum has obvious plugging effect, can form stifled or bridge blinding temporarily in the shutoff process, effectively control the consumption of plugging material and do not influence plugging effect, satisfy the technical requirements of gas storage operation.
3. perforation, the mud dividing plate blocking technology of fetching water
Characteristics explanation: choose the appropriate location at the defective well section of the above cementing quality of air reservoir target zone and carry out fetch water the again shutoff mode of mud dividing plate of first perforation, can prevent to manage the generation of outer has channeling, effectively improve the shutoff quality.
4. the time mode of coagulating of target zone is to utilize cement to hold the stream device to realize being with the pressure time to coagulate.
Characteristics explanation: utilize cement to hold the stream device and can guarantee that plugged zone is waited when coagulating and under needed pressure, carry out, prevent from effectively that cement from returning to tell.
Following conjunction with figs. and specific embodiment are described in further detail the specific embodiment of the present invention.
According to the present invention, in conjunction with the underground gas storage situation in Liaohe Oil Field, the concrete shutoff scheme of many mouthfuls of old wells shut-in wells is worked out out in research and development, below in conjunction with Figure 1A, Figure 1B wherein concrete shutoff scheme and the technology of certain well is elaborated:
This well completion date is on January 7th, 1980, this well perforated interval: 1874.2-2892.0m, 90.2m/16 layer, have in cement face position * 2360.0m, the cement plug junk (lead screw * 2378.05) and two packers (151 give up * 2378.26m, 251 envelopes * 2417.65m).
The shut-in well scheme of utilizing technical scheme of the present invention to formulate is as follows:
1) bores mill cement plug * 2360.0m and lead screw * 2378.05m to 151 and lose top * 2378.26m;
2) salvage combination packer in the pit shaft;
3) above full wellbore pressure test: the P=15MPa of 1874.0m, 30min, Δ P≤0.5MPa are qualified, and be qualified until pressure testing as the defective stifled absorption well section of squeeze seal of carrying out of pressure testing;
4) the full pit shaft survey sound width of cloth/variable density detects cementing quality (seeing the well logging advice note)
5) adopt latex to expand and annotate the integral cement plug with the segmentation of silicon ash corrosion-resistant hyposmosis cement paste, well section: 2563.0～3023.4m, and pressure testing is qualified respectively: P=15MPa, 30min, Δ P≤0.5MPa;
6) the GX-T140 sleeve pipe is scraped bits device scraping perforated interval: 1860.0～2560.0m repeatedly down, and thoroughly cleans the borehole wall;
7) cement retainer * 2541.0m under, squeeze method shutoff perforated interval: 2544.0～2558.0m, specific requirement is referring to the shutoff working design; (annotate: this perforated interval is non-air reservoir target zone, and is positioned under the target zone, so preferable employing ordinary Portland cement carries out shutoff.)
8) employing latex expands and annotates the integral cement plug with the segmentation of silicon ash corrosion-resistant hyposmosis cement paste, well section: 2401.0～2541.0m, and difference pressure testing: P=15MPa, and 30min, Δ P≤0.5MPa are qualified;
9) cement retainer * 2328.0m under squeezes filler mixing superfine cement shutoff perforated interval: 2339.4～2396.0m, and specific requirement is referring to the shutoff working design; (annotate: this perforated interval is positioned at the air reservoir target zone, so preferable employing filler mixing superfine cement carries out shutoff)
10) cement retainer * 2298.0m under squeezes filler mixing superfine cement shutoff perforated interval: 2302.6～2322.8m, and specific requirement is referring to the shutoff working design; (annotate: this perforated interval is positioned at the air reservoir target zone, so adopt filler mixing superfine cement to carry out shutoff)
11) employing latex expands and annotates the integral cement plug with the segmentation of silicon ash corrosion-resistant hyposmosis cement paste, well section: 1897.0～2298.0m, and difference pressure testing: P=15MPa, and 30min, Δ P≤0.5MPa are qualified;
12) squeeze filler mixing superfine cement shutoff perforated interval: 1874.0～1892.0m, specific requirement is referring to the shutoff working design; (annotate: this perforated interval is non-air reservoir target zone, but is positioned on the air reservoir target zone, for preventing has channeling to ground, so preferable employing filler mixing superfine cement carries out shutoff)
13) employing latex expands and annotates the integral cement plug with the segmentation of silicon ash corrosion-resistant hyposmosis cement paste, well section: 1560.0～1871.0m, and difference pressure testing: P=15MPa, and 30min, Δ P≤0.5MPa are qualified;
14) lower tubular column * 1558.0m, full pit shaft replaces into casing protection liquid (density 〉=1.00～1.05g/cm3, PH 〉=9);
15) Φ 73mm oil pipe * 500.0m seat is gone into well head, is set up circulation canal down;
16) but install kill-job Pithead preventing thieves device, can routine observation the pit shaft internal pressure, and perform obvious sign.
Specifically practiced as can be known by above-mentioned, the present invention is directed to the concrete geology design feature of gas storage, adopt filler mixing superfine cement shutoff gas-bearing reservoir and perforated interval, select the particle diameter of cement according to in-place permeability, pore throat size, the ratio of filler and compatibility are utilized cement to hold the stream device and are realized band pressure Hou Ning.The present invention can effectively save plugging material, improves plugging effect.
Though the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from the spirit and scope of the present invention, having done; or according to equivalent variations and modification that scope of patent protection of the present invention is done, all should still belong to the category that this patent is contained.
Claims (9)
1. underground natural gas storage tank old well plugged back method is characterized in that this method comprises:
S1. utilize cement to hold the stream device, adopt the stifled air reservoir target zone of having penetrated out of filler mixing superfine cement squeeze seal, and keep the superfine cement plug; S4. utilize cement to hold the stream device, adopt the above perforated interval of filler mixing superfine cement squeeze seal gas shutoff storehouse target zone, and keep the superfine cement plug;
S6. shutoff target zone band is pressed to wait and is coagulated;
S7. the integral cement plug is played in segmentation, and the cement face is retained in the 300m at least more than the perforation plugged well section of the superiors.
2. underground natural gas storage tank as claimed in claim 1 old well plugged back method, it is characterized in that, if having penetrated spud section does not all penetrate out the air reservoir target zone, then behind step S1, also comprise step S2: penetrate out circle, air reservoir target zone top, and adopt filler mixed cement squeeze seal stifled, and pressure testing, test passes.
3. underground natural gas storage tank as claimed in claim 1 old well plugged back method is characterized in that, also comprises step S3 behind the step S1: adopt the following perforated interval of ordinary Portland cement squeeze seal gas shutoff storehouse target zone, and keep cement plug.
4. underground natural gas storage tank as claimed in claim 3 old well plugged back method is characterized in that, the ordinary Portland cement that adopts among the step S3 is G class g cement commonly used; Among the step S7, be to adopt latex to expand to play the integral cement plug with the segmentation of silicon ash corrosion-resistant hyposmosis cement paste.
5. underground natural gas storage tank as claimed in claim 1 old well plugged back method, it is characterized in that, between step S4 and S6, also comprise step S5: select the higher mud stone of permeability and sandstone boundary section at the defective well section of the above cementing quality of target zone, the ultra-fine mixed cement of the recycling filler mud dividing plate of fetching water behind elder generation's perforation is with the generation of the outer has channeling of prevention pipe.
6. underground natural gas storage tank as claimed in claim 1 old well plugged back method is characterized in that, among the step S6, utilizes cement to hold the stream device and realizes that band presses to wait and coagulate.
7. as each described underground natural gas storage tank old well plugged back method of claim 1 to 6, it is characterized in that described method also comprises step S8: be lowered to the part oil pipe, to set up circulation canal.
8. underground natural gas storage tank as claimed in claim 7 old well plugged back method, it is characterized in that described method also comprises step S9: integral cement plug face to well head is filled casing protection liquid.
9. underground natural gas storage tank as claimed in claim 1 old well plugged back method is characterized in that, described method is to select the particle diameter of cement, ratio and the compatibility of filler according to formation lithology permeability, pore throat size.
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| CN113586004A (en) * | 2020-04-30 | 2021-11-02 | 中国石油天然气股份有限公司 | Method for plugging waste well of gas storage |
| CN114395383A (en) * | 2021-12-29 | 2022-04-26 | 安东石油技术（集团）有限公司 | Old well plugging cement slurry for gas storage and preparation method thereof |
| CN115596395A (en) * | 2021-07-08 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Safe abandoned well plugging method |
| CN116696279A (en) * | 2023-08-07 | 2023-09-05 | 新疆斐德莱布能源科技有限公司 | A temporary plugging operation method for long vertical well section gas storage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400376A (en) * | 2002-09-12 | 2003-03-05 | 大庆油田有限责任公司 | Cement band pressure curing channelling-blocking method |
| US20040136784A1 (en) * | 2003-01-13 | 2004-07-15 | Dahlem David Fred | Distributed natural gas storage system(s) using oil & gas & other well(s) |
| US20090200024A1 (en) * | 2008-02-13 | 2009-08-13 | Conrad Ayasse | Modified process for hydrocarbon recovery using in situ combustion |
-
2012
- 2012-02-09 CN CN201210028852.2A patent/CN103244071B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400376A (en) * | 2002-09-12 | 2003-03-05 | 大庆油田有限责任公司 | Cement band pressure curing channelling-blocking method |
| US20040136784A1 (en) * | 2003-01-13 | 2004-07-15 | Dahlem David Fred | Distributed natural gas storage system(s) using oil & gas & other well(s) |
| US20090200024A1 (en) * | 2008-02-13 | 2009-08-13 | Conrad Ayasse | Modified process for hydrocarbon recovery using in situ combustion |
Non-Patent Citations (3)
| Title |
|---|
| 何光中 等: "长井段水泥封窜技术研究", 《大庆石油地质与开发》 * |
| 张平 等: "储气库区废弃井封井工艺技术", 《天然气工业》 * |
| 李祥 等: "刘庄地下储气库刘9 井封堵工艺技术", 《油气井测试》 * |
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| CN103590778A (en) * | 2013-11-12 | 2014-02-19 | 中国地方煤矿总公司 | Method for blocking off waste oil-gas well |
| CN103590768A (en) * | 2013-11-12 | 2014-02-19 | 中国地方煤矿总公司 | Treatment method for abandoned uncased wells in coal mining area |
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| CN103590778B (en) * | 2013-11-12 | 2016-10-05 | 中国地方煤矿总公司 | The method for blocking of abandoned oil gas well |
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| CN108547590A (en) * | 2018-03-30 | 2018-09-18 | 重庆大学 | The method shunt in a well for a long time to salt cave storage cavern using rock salt damage self-healing characteristics |
| CN108547590B (en) * | 2018-03-30 | 2020-07-31 | 重庆大学 | Method for carrying out long-term well sealing on salt cavern storage by utilizing self-healing characteristic of salt rock damage |
| CN108756798A (en) * | 2018-06-15 | 2018-11-06 | 中盐金坛盐化有限责任公司 | Salt cave old well reform gas storage well method for blocking |
| CN113586004A (en) * | 2020-04-30 | 2021-11-02 | 中国石油天然气股份有限公司 | Method for plugging waste well of gas storage |
| CN112228002A (en) * | 2020-09-09 | 2021-01-15 | 大庆康盛石油节能科技开发有限公司 | Plugging device for near wellbore zone of perforated oil layer |
| CN115596395A (en) * | 2021-07-08 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Safe abandoned well plugging method |
| CN114395383A (en) * | 2021-12-29 | 2022-04-26 | 安东石油技术（集团）有限公司 | Old well plugging cement slurry for gas storage and preparation method thereof |
| CN114395383B (en) * | 2021-12-29 | 2023-09-19 | 安东石油技术（集团）有限公司 | Gas storage old well plugging cement slurry and preparation method thereof |
| CN116696279A (en) * | 2023-08-07 | 2023-09-05 | 新疆斐德莱布能源科技有限公司 | A temporary plugging operation method for long vertical well section gas storage |
| CN116696279B (en) * | 2023-08-07 | 2024-01-26 | 新疆斐德莱布能源科技有限公司 | Temporary blocking operation method of long straight well section gas storage |
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