CN107091055A - A kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well - Google Patents
A kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well Download PDFInfo
- Publication number
- CN107091055A CN107091055A CN201710433339.4A CN201710433339A CN107091055A CN 107091055 A CN107091055 A CN 107091055A CN 201710433339 A CN201710433339 A CN 201710433339A CN 107091055 A CN107091055 A CN 107091055A
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- Prior art keywords
- well
- mixed phase
- hot fluid
- phase hot
- reaming
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- 239000012530 fluid Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 17
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 25
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 25
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 24
- 239000011440 grout Substances 0.000 claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims description 13
- 235000009566 rice Nutrition 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 46
- 241000209094 Oryza Species 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000005465 channeling Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000008961 swelling Effects 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
A kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, is related to oil and gas production, and completion belongs to field of petroleum exploitation.The technique includes：In the oil drilling later stage; reaming bit is changed during 50 300 meters away from target oil reservoir of drill bit; to form the reaming section that oil reservoir top is 50 300 meters high; and injection protective layer is added in artificial bottom of a well; and the tripping in sleeve pipe and reaming section between sleeve pipe and stratum adds water mudding blocking layer in pit shaft, the plugged zone is cement and montmorillonite mixture, and montmorillonite mass ratio is that 5 10% remaining composition are cement; after after grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir；Present invention process can effectively prevent from noting the high-temperature steam anti-excessive injury caused to grout off layer and pit shaft when mixed phase hot fluid recovers the oil using the characteristic of montmorillonite, extend the service life of pit shaft by forming reaming section in underground and adding grout off layer.
Description
Technical field
Oil and gas is produced, completion, belongs to field of petroleum exploitation.
Background technology
The exploitation of current heavy crude reservoir is basic based on thermal recovery, mainly has steam soak, steam to drive, combustion in situ skill
Art, the spontaneous mixed phase hot fluid oil recovery technique of downhole electric heating technology and underground.
The spontaneous mixed phase hot fluid oil recovery technique cardinal principle in underground is：Bottom, oil reservoir top arrangement well are injected in oil field
Lower mixed phase heated fluid generator, its supporting feed system in ground configuration；Occur by feed system to underground mixed phase hot fluid
Device provides oxidant, fuel and water, mixed phase burning generation high-temperature steam and carbon dioxide is formed in underground, and inject oil reservoir therewith
Carbon dioxide and high-temperature steam in the middle carry out displacement of reservoir oil, mixed phase hot fluid can be modified to crude oil, reduce crude oil in heavy,
Colloid, the content of asphalitine, play a part of reduction viscosity of crude, increase its mobility, make it easier for being plucked out of.
Flue gas and high-temperature steam mixture that mixed phase hot fluid generates for burning, in oil displacement process high temperature mixed phase hot-fluid
Know from experience the grout off layer between contact sleeve pipe and oil reservoir, Long Term Contact can cause irreversible damage to grout off layer, make
Has channeling occurs between packaged tube and stratum, serious can seeing from ground emits vapour, therefore to being drilled well and cementing technology
It is required that higher.
In view of the above-mentioned problems, the present invention provides a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, it is to avoid
Has channeling between sleeve pipe and stratum occurs during mixed phase hot fluid displacement, increases the service life of pit shaft.
The content of the invention
The embodiment of the present invention provides a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, the technique bag
Include：In the oil drilling later stage, reaming bit is changed during 50-300 meters away from target oil reservoir of drill bit, continues to pierce shape by reaming bit
Into oil reservoir top reaming section 50-300 meters high, drilling well adds injection protective layer in artificial bottom of a well after finishing, and in pit shaft under
Enter sleeve pipe and the reaming section between sleeve pipe and stratum adds grout off layer, the plugged zone is that cement is mixed with montmorillonite
Thing, montmorillonite mass ratio is that 5-10% remaining composition is cement, E, F grade in the cement selection API classifications, treats grout off layer
After solidification, tripping in perforating gun carries out perforating job to oil reservoir.
The reaming section mineshaft diameter increases 20-80 centimetres with respect to the non-reaming mineshaft diameter in its top, so that cement is sealed
Blocking layer diameter increase, to reach enhancing seal-off effect, stability action.
The injection protective layer is that the smooth high temperature resistant stainless steel body in surface is constituted, and is tubbiness, 5-10 millimeters of thickness, height 1-
3 meters, play and protect artificial bottom of a well not by mixed phase hot fluid corrosiveness.
The plugged zone is cement and montmorillonite mixture, and montmorillonite mass ratio is that 5-10% remaining composition is cement, institute
E, F grades are stated in cement selection API classifications.
The montmorillonite particle diameter is 0.01-0.1 millimeter, 0.01-0.1 millimeters of particle diameter montmorillonites can effectively uniform branch and
In cement, and montmorillonite has the characteristic of water swelling, when injecting mixed phase hot fluid, if the steam in mixed phase hot fluid is saturating
Cross cement to enter inside plugged zone, montmorillonite can effectively absorb steam and expand, to block follow-up steam to permeate, and 0.01-0.1
After the montmorillonite of millimeter particle diameter, plugged zone will not be caused harm.
The perforating modes are the uniform perforation of oil reservoir, and shot density is 10-30 holes/rice.
The beneficial effect of the embodiment of the present invention is：1) present invention process by reaming section is formed in underground and in sleeve pipe and
Ground interlayer adds grout off layer, reaming section grout off layer compares traditional well completion cement plugged zone more firm, plugging effect
It is more notable；2) high-temperature steam is to cement when can effectively prevent that note mixed phase hot fluid from recovering the oil using the characteristic of montmorillonite
The injury that plugged zone and pit shaft are caused, extends the service life of pit shaft；3) by adding injection protective layer in artificial bottom of a well, reduce
Corrosion during note mixed phase hot fluid to shaft bottom, extends pit shaft service life.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, it can also be obtained on the premise of not paying creative work according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of well-completing process underground schematic diagram of the spontaneous mixed phase hot fluid oil production method of straight well.
Fig. 2 is 9 method well pattern schematic diagrames.
Fig. 3 is seven-spat pattern schematic diagram.
Drawing reference numeral：1st, sleeve pipe 2, reaming section 3, grout off layer 4, oil reservoir 5, artificial bottom of a well 6, injection protective layer
7th, injection well 8, producing well.
Embodiment
The embodiment of the present invention provides a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, the technique bag
Include：In the oil drilling later stage, reaming bit is changed during 50-300 meters away from target oil reservoir of drill bit, continues to pierce shape by reaming bit
Into oil reservoir top reaming section 50-300 meters high, drilling well adds injection protective layer in artificial bottom of a well after finishing, and in pit shaft under
Enter sleeve pipe and the reaming section between sleeve pipe and stratum adds grout off layer, after grout off layer solidifies, tripping in perforating gun
Perforating job is carried out to oil reservoir.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
The embodiments of the invention provide a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, the technique bag
Include following steps：
Step one：In the oil drilling later stage, change reaming bit into during 50-300 meters away from target oil reservoir of drill bit, pass through reamer
Head continues to pierce to form oil reservoir top reaming section 50-300 meters high, and reaming section mineshaft diameter is straight with respect to the non-reaming pit shaft in its top
Footpath increases 20-80 centimetres.
Step 2：Drilling well adds injection protective layer in artificial bottom of a well after finishing, and tripping in sleeve pipe and in sleeve pipe in pit shaft
Reaming section between stratum adds grout off layer, and the plugged zone is cement and montmorillonite mixture, montmorillonite mass ratio
For 5-10%, remaining composition is cement, and E, F grades in the cement selection API classifications, the montmorillonite particle diameter is 0.01-0.1 millis
Rice.
Step 3：After grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir, and perforating modes are that oil reservoir is equal
Even perforation, shot density is 10-30 holes/rice.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1：
One, certain oil field block, 2250 meters of reservoir depth, 10 meters of core intersection, the mpas of viscosity of crude 20000, well spacing side
Formula is 9 method well patterns, and injection well 11 has 100-150 meters away from the producing well 12 relatively entered, has 140-212 away from producing well 12 farther out
Rice, as shown in Fig. 2 the present embodiment is that have 100 meters away from nearer producing well 12, has 140 meters away from producing well 12 farther out.Design note
Enter the ton day of mixed phase hot fluid 100, mixed phase hot fluid temperature is 300 degree.
The first step：Reaming bit is changed into when drilling well later stage, 150 meters away from target oil reservoir of drill bit, is passed through reaming bit and is continued to bore
Enter to be formed oil reservoir top reaming section 150 meters high, reaming section mineshaft diameter increases by 80 lis with respect to the non-reaming mineshaft diameter in its top
Rice.
Step 2：Drilling well finish after in the wellbore tripping in injection 7 millimeters of protective layer thickness, height 3 meters, subsequent tripping in set
Manage, sleeve pipe and reaming section arranged concentric, and the reaming section between sleeve pipe and stratum is added in grout off layer, the plugged zone
Montmorillonite mass ratio is that 5% remaining composition is cement, and F grades in cement selection API classifications, the montmorillonite particle diameter is 0.1 millimeter.
Step 3：After grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir, and perforating modes are that oil reservoir is equal
Even perforation, shot density is 30 holes/rice.
After the completion of completion practice, mixed phase heated fluid generator and flooding operation can be started under lower going-into-well into pit shaft.
Embodiment 2：
One, certain oil field block, 2800 meters of reservoir depth, 25 meters of core intersection, the mpas of viscosity of crude 40000, well spacing side
Formula is 9 method well patterns, and injection well 11 has 200-260 meters away from the producing well 12 relatively entered, has 300-400 away from producing well 12 farther out
Rice.As shown in Fig. 2 the present embodiment is that there are 220 meters away from nearer producing well 12, there are 340 meters away from producing well 12 farther out.Design note
Enter the ton day of mixed phase hot fluid 30, mixed phase hot fluid temperature is 320 degree.
The first step：Reaming bit is changed into when drilling well later stage, 300 meters away from target oil reservoir of drill bit, is passed through reaming bit and is continued to bore
Enter to be formed oil reservoir top reaming section 300 meters high, reaming section mineshaft diameter increases by 50 lis with respect to the non-reaming mineshaft diameter in its top
Rice.
Step 2：Drilling well finish after in the wellbore tripping in injection 10 millimeters of protective layer thickness, height 2 meters, subsequent tripping in set
Manage, sleeve pipe and reaming section arranged concentric, and the reaming section between sleeve pipe and stratum is added in grout off layer, the plugged zone
Montmorillonite mass ratio is that 10% remaining composition is cement, and F grades in cement selection API classifications, the montmorillonite particle diameter is 0.01 milli
Rice.
Step 3：After grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir, and perforating modes are that oil reservoir is equal
Even perforation, shot density is 10 holes/rice.
After the completion of completion practice, mixed phase heated fluid generator and flooding operation can be started under lower going-into-well into pit shaft.
Embodiment 3：
One, certain oil field block, 1300 meters of reservoir depth, 7 meters of core intersection, the mpas of viscosity of crude 3000, hole pattern
For seven-spat pattern, injection well 11 has 300-400 meters away from producing well 12, as shown in figure 3, the present embodiment is away from nearer producing well
12 have 310 meters, have 360 meters away from producing well 12 farther out, the ton day of mixed phase hot fluid 45 is injected in design, mixed phase hot fluid temperature is
200 degree.
The first step：Reaming bit is changed into when drilling well later stage, 50 meters away from target oil reservoir of drill bit, continues to pierce by reaming bit
Oil reservoir top reaming section 50 meters high is formed, reaming section mineshaft diameter increases by 20 centimetres with respect to the non-reaming mineshaft diameter in its top.
Step 2：Drilling well finish after in the wellbore tripping in injection 5 millimeters of protective layer thickness, height 1 meter, subsequent tripping in set
Manage, sleeve pipe and reaming section arranged concentric, and the reaming section between sleeve pipe and stratum is added in grout off layer, the plugged zone
Montmorillonite mass ratio is that 5% remaining composition is cement, and E grades in cement selection API classifications, the montmorillonite particle diameter is 0.04 milli
Rice.
Step 3：After grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir, and perforating modes are that oil reservoir is equal
Even perforation, shot density is 20 holes/rice.
After the completion of completion practice, mixed phase heated fluid generator and flooding operation can be started under lower going-into-well into pit shaft.
Claims (6)
1. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well, it is characterised in that the technique includes：
In the oil drilling later stage, reaming bit is changed during 50-300 meters away from target oil reservoir of drill bit, continues to pierce by reaming bit
Oil reservoir reaming section top 50-300 meters high is formed, and；
Drilling well adds injection protective layer in artificial bottom of a well after finishing, tripping in sleeve pipe, and between sleeve pipe and stratum in the wellbore
Reaming section adds grout off layer, and；
After after grout off layer solidification, tripping in perforating gun carries out perforating job to oil reservoir.
2. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well as claimed in claim 1, it is characterised in that described
Reaming section mineshaft diameter increases 20-80 centimetres with respect to the non-reaming mineshaft diameter in its top.
3. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well as claimed in claim 1, it is characterised in that described
It is that the smooth high temperature resistant stainless steel body in surface is constituted to spray protective layer, is tubbiness, 5-10 millimeters of thickness, 1-3 meters of height plays protection
Artificial bottom of a well is not by mixed phase hot fluid corrosiveness.
4. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well as claimed in claim 1, it is characterised in that described
Plugged zone is cement and montmorillonite mixture, and montmorillonite mass ratio is that 5-10% remaining composition is cement, and the cement selects API
E, F grades in classification.
5. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well as claimed in claim 4, it is characterised in that described
Montmorillonite particle diameter is 0.01-0.1 millimeters.
6. a kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well as claimed in claim 1, it is characterised in that described
Perforating modes are the uniform perforation of oil reservoir, and shot density is 10-30 holes/rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433339.4A CN107091055A (en) | 2017-06-10 | 2017-06-10 | A kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433339.4A CN107091055A (en) | 2017-06-10 | 2017-06-10 | A kind of well-completing process of the spontaneous mixed phase hot fluid oil production method of straight well |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817720A (en) * | 1987-12-18 | 1989-04-04 | Texaco Inc. | Method for forming a barrier to fluid flow in an oil formation adjacent to a producing oil well |
| JPH0227991A (en) * | 1988-07-16 | 1990-01-30 | Takasago Internatl Corp | Production of purified oil and tropolones |
| CN1139177A (en) * | 1996-02-28 | 1997-01-01 | 崔国利 | Regeneration technology for oil-field gun perforator barrel |
| CN1293300A (en) * | 2000-11-20 | 2001-05-02 | 北京金索道投资咨询有限公司 | Method and equipment for perforating and forming fractures |
-
2017
- 2017-06-10 CN CN201710433339.4A patent/CN107091055A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817720A (en) * | 1987-12-18 | 1989-04-04 | Texaco Inc. | Method for forming a barrier to fluid flow in an oil formation adjacent to a producing oil well |
| JPH0227991A (en) * | 1988-07-16 | 1990-01-30 | Takasago Internatl Corp | Production of purified oil and tropolones |
| CN1139177A (en) * | 1996-02-28 | 1997-01-01 | 崔国利 | Regeneration technology for oil-field gun perforator barrel |
| CN1293300A (en) * | 2000-11-20 | 2001-05-02 | 北京金索道投资咨询有限公司 | Method and equipment for perforating and forming fractures |
Non-Patent Citations (1)
| Title |
|---|
| 杨伟平等: "φ139.7mm套管开窗侧钻技术现状及其展望", 《石油钻采工艺》 * |
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