CN102251756B - Stone powder leakage blocking method - Google Patents
Stone powder leakage blocking method Download PDFInfo
- Publication number
- CN102251756B CN102251756B CN201110169474.5A CN201110169474A CN102251756B CN 102251756 B CN102251756 B CN 102251756B CN 201110169474 A CN201110169474 A CN 201110169474A CN 102251756 B CN102251756 B CN 102251756B
- Authority
- CN
- China
- Prior art keywords
- leak stopping
- slurry
- stone flour
- well
- drilling
- 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.)
- Expired - Fee Related
Links
- 239000004575 stone Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000903 blocking effect Effects 0.000 title claims description 11
- 239000000843 powder Substances 0.000 title abstract 4
- 239000002002 slurry Substances 0.000 claims abstract description 64
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 235000013312 flour Nutrition 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000009955 starching Methods 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 3
- 239000010428 baryte Substances 0.000 claims description 3
- 229910052601 baryte Inorganic materials 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a stone powder leakage stopping method, which relates to the field of petroleum drilling, and is characterized in that stone powder composite bridging leakage stopping slurry is prepared by a slurry preparation tank of drilling fluid, the slurry is prepared by a drilling pump in a circulating manner through a hydraulic mixing hopper tank at the discharge capacity of 1.8 square/minute, a smooth drilling rod is arranged to the top of a leakage layer position by 10-30 meters, the leakage stopping slurry in the tank is uniformly pumped at the speed of 1.8 square/minute by the drilling pump, and most of the leakage stopping slurry enters the leakage layer to meet the pressure bearing requirement in a well closing and extruding manner. The method can ensure that stone powder and plugging materials of different levels can enter the leaking layer and can reside, the formed plugging object has high integral strength, a good plugging whole body can be formed, the problems that the plugging object has insufficient strength and the whole plugging body cannot be formed in the prior art are well solved, and the success rate of plugging and the anti-breaking capacity are greatly improved.
Description
Technical field
The present invention relates to the petroleum drilling technology field, exactly relate to a kind of stone flour composite bridge plug blocking method.
Background technology
Along with Ordos Basin oil gas field large-scale development, horizontal well will get more and more.But northern Shensi block and Su Lige block extend, there is loss zone in Liu family's ditch group subregion, for the maintenance level well lower curved section borehole wall need improve the density stabilized borehole wall, density improves at 1.25g/cm3, and the raising of drilling fluid density has increased probability and difficulty that leakage occurs.
Because of absorption well segment length and many, after particularly drilling fluid density improves, prolongation group, Liu family's ditch group are all easily missed, the absorption well segment length, some leakages is lost segment length and is reached hundreds of rice, and without fixing well depth, grasp drop ply position, number, thickness that can not be definite, the parameters such as drop ply absorption coefficient, add to the difficulties to leak stopping.Within 2009, only have 1 mouthful of absorption well, the leakage incidence successively has 11 mouthfuls of absorption wells in 10%, 2010 year, and leakage incidence 29%, compare and increased nearly 20 percentage points.
Current leak stopping difficult point and reason:
(1) there are intrinsic fracture in prolongation middle part, bottom, Liu family's ditch stratum, mainly take vertical fracture as main, and very grow, and under differential pressure action, crack can further be expanded.
(2) Liu family's ditch formation leakage well section is generally in its bottom, well segment length 80～100 m, and indivedual zones, all there is drop ply in whole Liu family's ditch stratum.Extend layer and be generally middle part, leakage section 10-40 rice,
(3) Liu family's ditch leakage, used polymer drilling fluid, and initial leak-off velocity is 5～10 m3/h, but increase to soon 20～40 m3/h, even loses and returns.And extend, be all to lose the property returned leakage usually.Serious well, the substantially anhydrous bod of primary cementing.
(4) easily repeatedly, most absorption wells, can set up circulation after the extruding leak stopping substantially, can recover drilling well, but after 10～24h, same leakage appears again in same stratum in leakage, and also there is same problem in the cement paste leak stopping;
(5) indivedual severe leakage well leak stopping are very difficult, adopt the leak stopping such as bridging plug, gel, conventional cement paste, and effect is all not obvious, finally causes well well filling sidetracking.
The application bridging plug has appearred at present, the correlation technique of gel pressure-bearing leak stopping, as publication number is 101435317, the Chinese patent literature that open day is on May 20th, 2009 discloses a kind of loss return drop-out cross linked gel plugging process, relate to field of oil drilling, preparation pre-crosslinked gel leak stopping slurry in slurry commanding tank, pre-crosslinked gel leak stopping slurry is by water, the gel thickening agent, gel strength conditioning agent and bridging plug leak stopping proppant form, wherein, the gel thickening agent accounts for 0.8～1% of gross weight, the gel strength conditioning agent accounts for 3～4% of gross weight, bridging plug leak stopping proppant accounts for 5～7% of gross weight, all the other are water, after each component is fully dissolved mixing, polish drill rod is down to 5～10 meters of drop ply bottoms, respectively pre-crosslinked gel leak stopping slurry and gel crosslinking agent are injected into well to the drop ply place simultaneously, wherein, the volume ratio of pre-crosslinked gel leak stopping slurry and gel crosslinking agent is 2.5～3.5: 100.The present invention, by chemical crosslinking and short solidifying, can make the overall construction intensity of gel be improved veritably, has improved disposable leak stopping success rate, makes it surpass 50%.
But the prior art that the above-mentioned patent documentation of take is representative still has the following disadvantages: the one, and the bridging plug thing is high with sheet-like particle content, and rigid material is few; The stifled insufficient strength of thing own, the 2nd, only form Local physical and stop up, can not form integral body, the leak stopping slurry, without cementing ability, improves the borehole wall anti-broken limited in one's ability, often produces and repeats leakage, has restricted the plugging effect to the leakage of opening property crack.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of stone flour blocking method, this method can guarantee that stone flour not at the same level and loss circulation material can enter drop ply and energy is resident, the stifled thing bulk strength formed is high, and can form good obstruction integral body, solved well existing stifled thing insufficient strength in the prior art and can not form the situation of whole blockage body, leak stopping success rate and anti-broken ability are improved greatly.
The present invention is by adopting following technical proposals to realize:
A kind of stone flour blocking method, it is characterized in that: by the slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry of drilling fluid, the leak stopping slurry entered well in 4 hours, polish drill rod is down to drop ply position top 10-30 rice, the leak stopping slurry is pumped in well by the borehole pump average rate, the pressure-bearing leak stopping, the closing well extruding makes the leak stopping slurry enter drop ply, adopts following two kinds of modes:
A, drop ply position is more clearly and when single, adopt directly and squeeze and replace: leak stopping is closed blowout preventer after starching out drilling tool immediately, and the leak stopping slurry is got into to drop ply;
B, drop ply position are not known and the segment length, adopt first for rear extrusion method: adopt mud replacement leak stopping slurry in drilling rod and in annular space, after reaching balance, immediately drilling tool is risen and is drilled into 100～200m more than stifled liquid level, then closing well is got into drop ply by the leak stopping slurry;
The concrete grammar of slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry is: the leak stopping slurry is comprised of high fluid loss agents, stone flour, bridging plug agent and water, wherein, high fluid loss agents accounts for 14 ~ 20% of water gross weight, stone flour accounts for 50 ~ 100% of water gross weight, and the bridging plug agent accounts for 10 ~ 15% of water gross weight, during preparation, at first put in slurry commanding tank and account for the total amount water of three minutes two, start the agitator on slurry commanding tank simultaneously, be added in slurry commanding tank according to the charging sequence of high fluid loss agents, stone flour and bridging plug agent, add remaining water simultaneously.
During the extruding of described closing well borehole pump be not more than 0.6 side/minute speed pump into the leak stopping slurry, the standpipe pressure amplitude is no more than 6MPa, squeeze leak stopping slurry amount and account for total leak stopping 2/3 while starching into well when above, observe the variation of standpipe pressure, without pressure, open blowout preventer, static 4～6h, if pressure is arranged, voltage stabilizing 20～30inm or 30min internal drop, in 30%, illustrate the leak stopping success, closing well is waited for peacefully 2～4h, by the operation sequence of opening blowout preventer, open, the leakage situation is observed in the safety rear circulation that drives a well, and does not leak to get into shaft bottom under slowly and recover to creep into afterwards.
Described high fluid loss agents refers to kieselguhr and the microlith cotton fiber mixture according to the 1:1 weight ratio.
Described stone flour refers to barite or quartzy class inert material, and particle size range is at the 200-20 order.
Described bridging plug agent refers to cotton seed hulls, acute end, and Pericarppium Armeniacae Amarum and mica sheet are according to the mixed composite material of arbitrary proportion, and particle size range is at the 20-5 order.
Compared with prior art, the technique effect that the present invention reaches is as follows:
1, adopt the composite bridge plug leak stopping slurry of this method preparation, carry out leak stopping according to this method, make carrier by high fluid loss agents, the stone flour of assurance different stage and loss circulation material can enter drop ply and energy is resident, ground temperature with pressure-acting under, stone flour, loss circulation material are gathered into to composite construction integral body, be frozen into gradually the blockage body of some strength, and and pit shaft, formation fracture or hole between can form good glue-joint strength, leak stopping success rate and anti-broken ability are improved greatly, site operation shows, fracture, duct leakage have good leak sealing effect, and leak stopping intensity is high.
2, in addition, adopt this blocking method, also there is following technique effect:
(1) to different leakage channel strong adaptabilities.High power capacity, multistage solid phase material of joining, improved and leaked the matching capacity of agent to leakage channel, can clamp-on in different leakage channels.
(2) leak stopping intensity is high.The leak stopping slurry is assembled dehydration in crack, bridge joint skeleton, building stones packing material and stratum are cemented to an integral body well, and bearing capacity is high, reaches the effect of whole leak stopping.
(3) execute-in-place is strong, and preparation and squeezing technique are improved on traditional bridging plug, gel squeezing technique, can tackle drop ply position clear and unclear in～large-scale leakage.
The accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the present invention is made to further supplementary notes, wherein:
Fig. 1 is this construction technology schematic diagram.
The specific embodiment
Embodiment 1
The invention discloses a kind of stone flour composite bridge plug blocking method, slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry by drilling fluid, by the high fluid loss agents XHD of A, B stone flour and the agent of C bridging plug and water, formed, wherein, high fluid loss agents accounts for 14 ~ 20% of water gross weight, stone flour accounts for 50 ~ 100% of water gross weight, and the bridging plug agent accounts for 10 ~ 15% of water gross weight.The slurry commanding tank volume is generally 30～40m3, put three minutes two of clear water total amount at slurry commanding tank, start the agitator on slurry commanding tank simultaneously, borehole pump with 1.8 sides/minute discharge capacity by circulation in waterpower mixing hopper tank, according to A, B, C charging sequence, at the waterpower mixing hopper, prepare, prepared rear leak stopping slurries and should enter the most as early as possible well, the time surpasses 4 little layereds seriously and is partly solidified.10 ~ 30 meters down to drop ply position top of polish drill rods, by leak stopping slurry in tank by borehole pump use 1.8 sides/minute the even pumping leak stopping of speed starch.
The pressure-bearing leak stopping, just need the closing well extruding for making leak stopping slurry major part enter drop ply, can adopt in two ways:
(1), when drop ply position is more clearly and single, adopt directly and squeeze and replace: leak stopping is closed blowout preventer after starching out drilling tool immediately, leak stopping is starched to major part and get into drop ply, and while adopting this method, drilling tool must be at home.
(2) drop ply position is not known and the segment length, adopt first for rear extrusion method: after reaching balance with the stifled liquid of mud replacement (reaching annular space in drilling rod), immediately drilling tool is risen and is drilled into 100～200m more than stifled liquid level, rise to home, then closing well is got into drop ply by the leak stopping slurry.
During extruding borehole pump be no more than 0.6. side/minute pump into, the standpipe pressure amplitude is no more than 6MPa, squeeze several times stifled liquid measure 2/3 when accounting for total stifled liquid and entering well when above, the variation of observation standpipe pressure, without pressure, open blowout preventer, static 4～6h, if pressure is arranged, voltage stabilizing 20～30inm or 30min internal drop are in 30%, the leak stopping success is described, closing well is waited for peacefully 2～4h.By the operation sequence of opening blowout preventer, open, the leakage situation is observed in the safety rear circulation that drives a well, and does not leak to get into shaft bottom under slowly and recover to creep into afterwards.
Described high fluid loss agents refers to kieselguhr and the microlith cotton fiber mixture according to the 1:1 weight ratio.Described stone flour refers to barite or quartzy class inert material, and particle size range is at the 200-20 order.Described bridging plug agent refers to cotton seed hulls, acute end, and Pericarppium Armeniacae Amarum and mica sheet are according to the mixed composite material of arbitrary proportion, and particle size range is at the 20-5 order.。
Embodiment 2
By the slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry of drilling fluid, the slurry commanding tank volume is 30～40m
3put three minutes two of clear water total amount at slurry commanding tank, start the agitator on slurry commanding tank simultaneously, borehole pump with 1.8 sides/minute discharge capacity by the waterpower mixing hopper, in slurry commanding tank, circulate, first increase fluid loss agents at the waterpower mixing hopper, account for 14 ~ 20% of water gross weight, add again stone flour, account for 50 ~ 100% of water gross weight, finally add the bridging plug agent, account for 10 ~ 15% of water gross weight., to prepare rear leak stopping slurries and should enter the most as early as possible well, the time surpasses 4 little layereds seriously and is partly solidified.
Embodiment 3
On the basis of embodiment 2,10 ~ 30 meters down to drop ply position top of polish drill rods, calculate the content accumulated amount into the well drilling tool, by leak stopping slurry in tank by borehole pump use 1.8 sides/minute the even pumping leak stopping of speed starch.Per minute measuring in tank enters well leak stopping slurry amount and returns out the drilling well liquid measure, calculates wastage.
Embodiment 4
On the basis of embodiment 3, after pumping into leak stopping slurry and just having gone out drilling tool, blowout preventer is closed in termination of pumping immediately, adopt and directly squeeze for extruding, borehole pump use be no more than 0.6. side/minute pump into, the standpipe pressure amplitude is no more than 6MPa, when squeezing stifled liquid measure 2/3 when accounting for total stifled liquid and entering well, stops pumping into when above.Observe the variation of standpipe pressure, without pressure, open blowout preventer, static 4～6h, if pressure is arranged, voltage stabilizing 20～30inm or 30min internal drop, in 30%, illustrate the leak stopping success, closing well is waited for peacefully 2～4h.By the operation sequence of opening blowout preventer, open, the leakage situation is observed in the safety rear circulation that drives a well, and does not leak to get into shaft bottom under slowly and recover to creep into afterwards.
Embodiment 5
On the basis of embodiment 3, after reaching balance with the stifled liquid of mud replacement (reaching annular space in drilling rod), immediately drilling tool is risen and is drilled into 100～200m more than stifled liquid level, rise to home, then closing well will be according to the extruding construction sequence of example 3.
7 implication wells are arranged in the situation that conventional bridging plug and gel leak stopping are invalid in 2010, carried out the pressure-bearing plugging test, implement this technique 10 times, success rate reaches 80%, has obtained good plugging effect.Scene has shown to improve the bearing capacity on prolongation and Liu family's ditch stratum, is to solve long celebrating gas well horizontal well lower curved section the most effective above pressure-bearing leak-stopping technique.
Claims (4)
1. a stone flour blocking method, it is characterized in that: by the slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry of drilling fluid, the leak stopping slurry entered well in 4 hours, polish drill rod is down to drop ply position top 10-30 rice, the leak stopping slurry is pumped in well by the borehole pump average rate, the pressure-bearing leak stopping, the closing well extruding makes the leak stopping slurry enter drop ply, adopts following two kinds of modes:
A, drop ply position is more clearly and when single, adopt directly and squeeze and replace: leak stopping is closed blowout preventer after starching out drilling tool immediately, and the leak stopping slurry is got into to drop ply;
B, drop ply position are not known and the segment length, adopt first for rear extrusion method: adopt mud replacement leak stopping slurry in drilling rod and in annular space, after reaching balance, immediately drilling tool is risen and is drilled into 100～200m more than stifled liquid level, then closing well is got into drop ply by the leak stopping slurry;
The concrete grammar of slurry commanding tank preparation stone flour composite bridge plug leak stopping slurry is: the leak stopping slurry is comprised of high fluid loss agents, stone flour, bridging plug agent and water, wherein, high fluid loss agents accounts for 14 ~ 20% of water gross weight, stone flour accounts for 50 ~ 100% of water gross weight, and the bridging plug agent accounts for 10 ~ 15% of water gross weight, during preparation, at first put in slurry commanding tank and account for the total amount water of three minutes two, start the agitator on slurry commanding tank simultaneously, be added in slurry commanding tank according to the charging sequence of high fluid loss agents, stone flour and bridging plug agent, add remaining water simultaneously;
During the extruding of described closing well borehole pump be not more than 0.6 side/minute speed pump into the leak stopping slurry, the standpipe pressure amplitude is no more than 6MPa, squeeze leak stopping slurry amount and account for total leak stopping 2/3 while starching into well when above, observe the variation of standpipe pressure, without pressure, open blowout preventer, static 4～6h, if pressure is arranged, voltage stabilizing 20～30min or 30min internal drop, in 30%, illustrate the leak stopping success, closing well is waited for peacefully 2～4h, by the operation sequence of opening blowout preventer, open, the leakage situation is observed in the safety rear circulation that drives a well, and does not leak to get into shaft bottom under slowly and recover to creep into afterwards.
2. a kind of stone flour blocking method according to claim 1 is characterized in that: described high fluid loss agents refers to kieselguhr and the microlith cotton fiber mixture according to the 1:1 weight ratio.
3. a kind of stone flour blocking method according to claim 1, it is characterized in that: described stone flour refers to barite or quartzy class inert material, and particle size range is at the 200-20 order.
4. a kind of stone flour blocking method according to claim 1 is characterized in that: described bridging plug agent refers to cotton seed hulls, acute end, and Pericarppium Armeniacae Amarum and mica sheet are according to the mixed composite material of arbitrary proportion, and particle size range is at the 20-5 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110169474.5A CN102251756B (en) | 2011-06-22 | 2011-06-22 | Stone powder leakage blocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110169474.5A CN102251756B (en) | 2011-06-22 | 2011-06-22 | Stone powder leakage blocking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251756A CN102251756A (en) | 2011-11-23 |
| CN102251756B true CN102251756B (en) | 2014-01-01 |
Family
ID=44979293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110169474.5A Expired - Fee Related CN102251756B (en) | 2011-06-22 | 2011-06-22 | Stone powder leakage blocking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251756B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015945B (en) * | 2012-12-07 | 2015-07-08 | 中国石油集团川庆钻探工程有限公司 | Process for improving pressure bearing capacity of stratum |
| CN104563952A (en) * | 2015-01-19 | 2015-04-29 | 中国石油集团渤海钻探工程有限公司 | Non-crosslinking special gel leakage stopping method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803172A (en) * | 1993-11-17 | 1998-09-08 | Foam Concepts, Inc. | Mine shaft and adit closure apparatus and method |
| CN101435317A (en) * | 2008-12-12 | 2009-05-20 | 中国石油集团川庆钻探工程有限公司 | Lost-return leakage cross-linked gel plugging process |
| WO2010082025A1 (en) * | 2009-01-15 | 2010-07-22 | Halliburton Energy Services, Inc. | Methods of setting particulate plugs in horizontal well bores using low-rate slurries |
| CN101863643A (en) * | 2010-05-24 | 2010-10-20 | 中国石油集团川庆钻探工程有限公司 | Hydrophobic gel composite cement and plugging method thereof |
| CN101955763A (en) * | 2010-05-14 | 2011-01-26 | 北京奥凯立科技发展股份有限公司 | High pressure-resistant leak stoppage agent and leak stoppage slurry containing same |
| CN102061151A (en) * | 2009-11-13 | 2011-05-18 | 中国石油化工股份有限公司 | Plugging bearing material for petroleum drilling, and preparation method and application thereof |
-
2011
- 2011-06-22 CN CN201110169474.5A patent/CN102251756B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803172A (en) * | 1993-11-17 | 1998-09-08 | Foam Concepts, Inc. | Mine shaft and adit closure apparatus and method |
| CN101435317A (en) * | 2008-12-12 | 2009-05-20 | 中国石油集团川庆钻探工程有限公司 | Lost-return leakage cross-linked gel plugging process |
| WO2010082025A1 (en) * | 2009-01-15 | 2010-07-22 | Halliburton Energy Services, Inc. | Methods of setting particulate plugs in horizontal well bores using low-rate slurries |
| CN102061151A (en) * | 2009-11-13 | 2011-05-18 | 中国石油化工股份有限公司 | Plugging bearing material for petroleum drilling, and preparation method and application thereof |
| CN101955763A (en) * | 2010-05-14 | 2011-01-26 | 北京奥凯立科技发展股份有限公司 | High pressure-resistant leak stoppage agent and leak stoppage slurry containing same |
| CN101863643A (en) * | 2010-05-24 | 2010-10-20 | 中国石油集团川庆钻探工程有限公司 | Hydrophobic gel composite cement and plugging method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 堵漏技术在深井施工中的应用;陈华青等;《西部探矿工程》;20081231(第4期);55-56 * |
| 王善举等.长裸眼井段承压堵漏工艺技术.《钻井液与完井液》.2008,第25卷(第2期),67-69. |
| 长裸眼井段承压堵漏工艺技术;王善举等;《钻井液与完井液》;20080331;第25卷(第2期);67-69 * |
| 陈华青等.堵漏技术在深井施工中的应用.《西部探矿工程》.2008,(第4期),55-56. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102251756A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102002350B (en) | Superhigh temperature water base drilling fluid | |
| CN102337108B (en) | High-efficiency anti-pollution spacer fluid for well cementing and preparation method thereof | |
| CN103937475B (en) | Carbon dioxide acidification blocking remover and process of not reversely discharging raffinate after acidification | |
| CN105199685B (en) | Induced crack leakage-proof and plugging water-based drilling fluid | |
| CN109458168A (en) | Composite temporary plugging diversion fracturing method for improving productivity of gas well in sandstone reservoir | |
| CN105086967A (en) | Channeling-preventing and blocking agent and construction method for blocking and blocking channeling by using same | |
| CN110359897A (en) | A kind of fracture-type reservoir cracks seam with boring leak-proof leak-stopping method in advance | |
| CN109653707A (en) | A kind of fractured reservoirs oil/gas well filling packer particle decreasing water cut and increasing oil method | |
| CN102434124A (en) | Successive composite method for plugging in well drilling | |
| CN101870862A (en) | Low-density high-strength leak-resistant slurry method for sealing leakage producing formation | |
| CN101863643B (en) | Hydrophobic gel composite cement and plugging method thereof | |
| CN107235691A (en) | A kind of sealing agent for blocking severe mud losses formation fracture and preparation method thereof | |
| CN101435317B (en) | Lost-return leakage cross-linked gel plugging process | |
| CN106321046A (en) | Hydraulic sand fracturing gas extraction method for underground coal seam with low air permeability | |
| CN106167695B (en) | Oil well chemical plugging agent | |
| RU2315171C1 (en) | Method for water influx zone isolation inside well | |
| CN105926624A (en) | Non-return type collecting hole grouting device and construction method thereof | |
| CN102251756B (en) | Stone powder leakage blocking method | |
| CN107461182B (en) | Layered fracturing sand prevention method | |
| CN101374874A (en) | Geosynthetic composite for borehole strengthening | |
| CN106479462A (en) | A kind of blocking agent and preparation method thereof and oil well casing leak stopping envelope alter method | |
| CN109294551A (en) | A kind of cleaning low damage agent of molecular cluster and its application | |
| CN105507848A (en) | Fast-dehydrating curable and organic synthetic plugging agent compound plugging construction method | |
| CN103306637B (en) | Method for plugging by cementing of tailing packer filled with Mi stone | |
| CN105199693B (en) | A kind of oil base gel leak stopping slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20210622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |