CN108952664A - A kind of oil/gas well straight well orientation water-jet multistage fracturing method - Google Patents
A kind of oil/gas well straight well orientation water-jet multistage fracturing method Download PDFInfo
- Publication number
- CN108952664A CN108952664A CN201810958225.6A CN201810958225A CN108952664A CN 108952664 A CN108952664 A CN 108952664A CN 201810958225 A CN201810958225 A CN 201810958225A CN 108952664 A CN108952664 A CN 108952664A
- Authority
- CN
- China
- Prior art keywords
- orientation
- oil
- well
- oil pipe
- tubing string
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000011010 flushing procedure Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000000638 stimulation 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
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)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a kind of oil/gas well straight wells to orient water-jet multistage fracturing method, comprising the following steps: well-flushing, kill-job, drifting scraping；Seeker, rotatable sleeve collar locator, repeatable set packer, orientation waterpower spray gun, safety joint, orientation short circuit, oil pipe orientation water-jet multistage fracturing tubing string are sequentially connected in the tail end of oil pipe；After tubing string enters well, spraycan position is accurately positioned by rotatable sleeve collar locator；Well head rotates tubing string and determines the corresponding orientation of orientation waterpower spray tip；After setting orientation, repeatable set packer is set, from oil-line pump entrance aperture liquid abrasive perforating, oil jacket annulus sand fracturing；Oil pipe is above mentioned after pressing crack construction unseals repeatable set packer.Duty cycle of the invention is short, can satisfy fracturing process along the crack initiation of minimum principal stress direction, reduces operation pressure, greatly improve the recovery ratio of oil/gas well.
Description
Technical field
The present invention relates to oil-drilling fields, orient water-jet multistage fracturing side more particularly to a kind of oil/gas well straight well
Method is suitable for oil/gas well cased hole completion mode, is the untraditional reservoirs well stimulation such as compact sandstone gas, shale gas, coal bed gas
Effective means.
Background technique
The common hydraulic jet perforation mode of oil gas field is mainly spiral perforation, random due to its abrasive perforating direction
Property, perforation may not be overlapped with desirable orientation, turn to the complex fractures such as crack and multiple cracking to generate, be unfavorable for reservoir and change
It makes.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of oil/gas well straight wells to orient water-jet multistage fracturing side
Method, is accurately positioned perforating site before perforation, adjusts perforation angle, its is made to be directed at best perforation orientation, and when pressure break can have
The formation fracture pressure and near-wellbore effect when reducing well fracturing of effect form one in reservoir and wider smooth split
Seam solves the problems, such as that conventional hydraulic abrasive perforating perforation efficiency is low and bending friction is big, reduces formation fracture pressure, improves oil gas
Well fracturing effect.
In order to solve the above-mentioned technical problem, The technical solution adopted by the invention is as follows: a kind of oil/gas well straight well orients waterpower
Spray multistage fracturing method, comprising the following steps:
Step 1: pit shaft prepares, well-flushing, kill-job, drifting scraping；
Step 2: the tail end in oil pipe is sequentially connected by seeker, rotatable mechanical casing collar locator (CCL), repeats
The orientation water-jet that setting tool, orientation waterpower spray gun, centralizer, safety joint, orientation short circuit, oil pipe are constituted is segmented pressure
Operating tool string is split to well head；
Step 3: orientation waterpower spray gun is accurately positioned by rotatable mechanical casing collar locator (CCL) after tubing string enters well,
Determine abrasive perforating position；
Step 4: rotation tubing string determines the corresponding side of nozzle of orientation waterpower spray gun after the accurate positioning of abrasive perforating position
Position；
Step 5: repeatable setting tool is set after determining perforation orientation angle, from oil-line pump entrance aperture liquid abrasive perforating,
Oil jacket annulus carries out sand fracturing；
Step 6: above mentioning oil pipe after pressing crack construction unseals repeatable setting tool, penetrated when needing to carry out next layer of position
When hole and pressure break, three-five are repeated the above steps until construction terminates.
The abrasive perforating of the orientation waterpower spray gun is arranged using single side, and nozzle direction is uniformly arranged in a face of tool
On.
Compared with prior art, the present invention has the effect that
1, the present invention can be accurately positioned perforating site, be needed to adjust using a kind of rotatable mechanical casing collar locator (CCL)
When whole perforation angle, mechanical casing collar locator is rotatable；
2, in the present invention is shorted by the gyro interception instrument orientation keyway and orientation of tape guide lower in oil pipe
Orientation key sit key cooperation, measure orientation waterpower spray gun perforation orientation angle, well head rotate fracturing string adjust perforation angle, make
It is directed at best perforation orientation；
3, the present invention is set using a kind of repeat, is unsealed fracturing packer, repeatedly lifts from the top and puts down seat using packer
Envelope deblocking achievees the purpose that unlimited number pressure break, saves development cost；
The present invention relies on rotatable mechanical casing collar locator (CCL), is accurately positioned perforating site, lower band guiding in oil pipe
The gyro interception instrument of device and orientation are shorted default key position seat key cooperation and measure orientation waterpower spray gun perforation orientation angle, well
Mouthful rotation fracturing string makes its be directed at best abrasive perforating azimuth, it is repeatable set, deblocking packer realizes multistage pressure
The method split, when pressure break, can effectively reduce the formation fracture pressure and near-wellbore effect when well fracturing, and when pressure break is storing up
A wider smooth crack is easily formed in layer, reduces formation fracture pressure, improves well fracturing effect.
Detailed description of the invention
Fig. 1 is fracturing string schematic diagram of the invention；
Fig. 2 is orientation waterpower spray gun structure schematic diagram；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is the B-B sectional view of Fig. 2；
Fig. 5 is orientation short-circuit structure schematic diagram；
Fig. 6 is that gyro is measured to waterpower spray gun azimuth tubing string figure in oil pipe；
Fig. 7 is that fix the position tubing string and orientation of gyro is shorted and sits bond structure schematic diagram in oil pipe.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Oil/gas well straight well of the invention orients water-jet multistage fracturing method, comprising the following steps:
Step 1: pit shaft prepares, well-flushing, kill-job, drifting scraping；
Step 2: the tail end in oil pipe is sequentially connected by seeker, rotatable mechanical casing collar locator (CCL), repeats
The orientation water-jet that setting tool, orientation waterpower spray gun, centralizer, safety joint, orientation short circuit, oil pipe are constituted is segmented pressure
Operating tool string is split to well head；
Step 3: orientation waterpower spray gun is accurately positioned by rotatable mechanical casing collar locator (CCL) after tubing string enters well,
Determine abrasive perforating position；
Step 4: rotation tubing string determines the corresponding side of nozzle of orientation waterpower spray gun after the accurate positioning of abrasive perforating position
Position；
Step 5: repeatable setting tool is set after determining perforation orientation angle, from oil-line pump entrance aperture liquid abrasive perforating,
Oil jacket annulus carries out sand fracturing；
Step 6: above mentioning oil pipe after pressing crack construction unseals repeatable setting tool, penetrated when needing to carry out next layer of position
When hole and pressure break, three-five are repeated the above steps until construction terminates.
The abrasive perforating of the orientation waterpower spray gun is arranged using single side, and nozzle direction is uniformly arranged in a face of tool
On.
As shown in Figure 1, the present invention orients water-jet multistage fracturing tubing string from bottom to top: seeker 2+ is rotatable mechanical
Casing collar locator (CCL) 4+ repeats setting tool 5+ orientation waterpower spray gun 6+ centralizer 7+ safety joint 8+ orientation and is shorted 9+
Oil pipe 10 is to well head.
The rotatable mechanical casing collar locator (CCL) uses the product of CN201711061136.3, repeats setting solution
Envelope tool uses 201420463342.2 product.
As in Figure 2-4, the orientation waterpower spray gun include gun body 601 and nozzle assembly composition, nozzle assembly by
Pressure cap 602, nozzle 603 form.Ejector body 601 is hollow columnar structures, arranges 2 groups of mounting holes, and every group of hole number is two
A, the hole of adjacent sets is circumferentially staggered by 30 ° of angles, and nozzle 603 is formed using high strength cemented carbide, and inner hole entrance is circular cone
Shape exports as cylinder.603 outer wall of nozzle be it is pyramidal, using high-temperature soldering insertion pressure cap 602 in, use allen wrench
602 external screw-thread of pressure cap is anchored in injector mounting hole.
As shown in figure 5, the orientation, which is shorted 9, is mounted on safety joint top, orientation is shorted on 9 and is provided with and orients
Mark of the consistent orientation key 901 in waterpower spray tip direction as abrasive perforating deflection.
As shown in fig. 6-7, it includes from bottom to top for guiding that gyro, which is measured to waterpower spray gun azimuth tubing string, in the oil pipe
Device 301, orientation keyway 302, gyro interception instrument 303, cable 304 form.301 lower end of guiding device is a beveled end
Mouthful.When interception, gyro measures multistage to waterpower spray gun azimuth tubing string orientation keyway 302 and orientation water-jet in oil pipe
Fracturing string orientation be shorted orientation key 901 sit key cooperation, it can be deduced that downhole perforation device orientation, by with target perforation side
Position is compared, and well head rotates fracturing string, adjusts perforation angle, it is made to be directed at best perforation orientation.
For the present invention by taking 5.5 " casing interior orientation water-jet of straight well point, 3 layers of pressing crack construction as an example, specific implementation step is as follows:
1) well-flushing, kill-job, drifting scraping are that tripping in fracturing string carries out pit shaft preparation；
2) according to the rotatable mechanical casing coupling of water-jet multistage fracturing tubing string seeker 2+ of connection orientation shown in Fig. 1
Locator 4+ repeat setting tool 5+ orientation the 7+ safety joint 8+ orientation of waterpower spray gun 6+ centralizer be shorted 9+ oil pipe 10 to
Well head；
3) oil pipe is above mentioned to position orientation waterpower Burners Positions；The rotatable mechanical casing collar locator (CCL) warp
Load fluctuation can be generated when crossing the casing coupling of short sleeve 3, the position of short sleeve is accurately positioned by load fluctuation, as base
Standard above mentions oil pipe to first layer abrasive perforating position；
4) gyro interception instrument of the lower cable with lower part with guiding device in oil pipe carries out fixed side to orientation waterpower spray gun
Position；Default key position is shorted to the orientation keyway of gyrolevel lower part and orientation and sits key cooperation, carries out azimuthal measurement, this
When the orientation that measures be to orient the orientation of waterpower spray gun.If azimuth is undesirable, tubing string adjustment is rotated by well head
The corresponding orientation of waterpower spray tip is oriented to optimal perforation orientation；
5) hydraulic jet perforation, pressure break；After the repeatable setting tool is set completely, sleeve gate is opened, from oil pipe
It is pumped into perforating fluid abrasive perforating, sleeve gate is closed after the completion of perforation and implements annular space sand fracturing, oil pipe fluid infusion；
6) after the completion of pressure break, the repeatable setting tool is above mentioned；
7) step 3) -5 is repeated), it completes remaining two layers of pressure break and completes.
In conclusion the contents of the present invention are not limited in the above embodiments, the knowledgeable people in same area can
Can propose other embodiments easily within technological guidance's thought of the invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (2)
1. a kind of oil/gas well straight well orients water-jet multistage fracturing method, which comprises the following steps:
Step 1: pit shaft prepares, well-flushing, kill-job, drifting scraping；
Step 2: the tail end in oil pipe is sequentially connected by seeker, rotatable mechanical casing collar locator (CCL), repeatable sets
The orientation water-jet staged fracturing that tool, orientation waterpower spray gun, centralizer, safety joint, orientation short circuit, oil pipe are constituted is applied
Work tubing string is to well head；
Step 3: being accurately positioned orientation waterpower spray gun after tubing string enters well by rotatable mechanical casing collar locator (CCL), determining
Abrasive perforating position；
Step 4: rotation tubing string determines the corresponding orientation of nozzle of orientation waterpower spray gun after the accurate positioning of abrasive perforating position；
Step 5: repeatable setting tool is set, from oil-line pump entrance aperture liquid abrasive perforating, oil jacket after determining perforation orientation angle
Annular space carries out sand fracturing；
Step 6: above mentioning oil pipe after pressing crack construction unseals repeatable setting tool, when need to carry out next layer of position perforation and
When pressure break, three-five are repeated the above steps until construction terminates.
2. oil/gas well straight well orients water-jet multistage fracturing method according to claim 1, which is characterized in that the orientation
The abrasive perforating of waterpower spray gun is arranged using single side, and nozzle direction is uniformly arranged on a face of tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958225.6A CN108952664A (en) | 2018-08-22 | 2018-08-22 | A kind of oil/gas well straight well orientation water-jet multistage fracturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958225.6A CN108952664A (en) | 2018-08-22 | 2018-08-22 | A kind of oil/gas well straight well orientation water-jet multistage fracturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952664A true CN108952664A (en) | 2018-12-07 |
Family
ID=64473574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958225.6A Pending CN108952664A (en) | 2018-08-22 | 2018-08-22 | A kind of oil/gas well straight well orientation water-jet multistage fracturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952664A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707362A (en) * | 2019-01-24 | 2019-05-03 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
| CN110344805A (en) * | 2019-07-16 | 2019-10-18 | 中国矿业大学 | A kind of down-hole drilling directional fracturing device and method |
| CN111852425A (en) * | 2019-04-24 | 2020-10-30 | 中国石油化工股份有限公司 | Hot dry rock staged fracturing pipe column and application method |
| CN113255192A (en) * | 2021-06-17 | 2021-08-13 | 西南石油大学 | Simulation calculation method for setting and bailing force of slips and couplings downhole tool |
| CN114320246A (en) * | 2021-10-19 | 2022-04-12 | 中海油能源发展股份有限公司 | Offshore oil field oil pipe formula water conservancy sandblast fracturing spray gun |
| CN114482940A (en) * | 2022-01-20 | 2022-05-13 | 中煤科工集团西安研究院有限公司 | Jet joint cutting and fracturing integrated device and fracturing method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106439Y (en) * | 2007-12-19 | 2008-08-27 | 吉林石油集团有限责任公司 | Orientation mechanism for high-precision perforating |
| CN102182448A (en) * | 2011-04-19 | 2011-09-14 | 中国石油化工集团公司 | Orientated measurement guiding butt joint device |
| CN204024574U (en) * | 2014-08-16 | 2014-12-17 | 中国石油集团渤海钻探工程有限公司 | Setting unsealing tool can be repeated |
| CN104695927A (en) * | 2015-01-27 | 2015-06-10 | 中国石油天然气股份有限公司 | Coiled tubing and production tubing combined string fracturing and well completion integrated method |
| CN105201461A (en) * | 2015-09-02 | 2015-12-30 | 北京泰坦通源天然气资源技术有限公司 | Multistage sand jet perforation and fracture combined operation method adopting coiled tubing and bottom packer |
| CN106321045A (en) * | 2016-08-23 | 2017-01-11 | 杰瑞能源服务有限公司 | Horizontal well directional sand blasting perforation and fracturing integral tool pipe column and construction method thereof |
| CN108005588A (en) * | 2017-11-02 | 2018-05-08 | 中国石油集团渤海钻探工程有限公司 | A kind of rotatable mechanical casing collar locator (CCL) |
| CN108086964A (en) * | 2017-12-04 | 2018-05-29 | 中煤科工集团西安研究院有限公司 | Coal bed gas horizontal well orients hydrajet tool string and construction method |
-
2018
- 2018-08-22 CN CN201810958225.6A patent/CN108952664A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106439Y (en) * | 2007-12-19 | 2008-08-27 | 吉林石油集团有限责任公司 | Orientation mechanism for high-precision perforating |
| CN102182448A (en) * | 2011-04-19 | 2011-09-14 | 中国石油化工集团公司 | Orientated measurement guiding butt joint device |
| CN204024574U (en) * | 2014-08-16 | 2014-12-17 | 中国石油集团渤海钻探工程有限公司 | Setting unsealing tool can be repeated |
| CN104695927A (en) * | 2015-01-27 | 2015-06-10 | 中国石油天然气股份有限公司 | Coiled tubing and production tubing combined string fracturing and well completion integrated method |
| CN105201461A (en) * | 2015-09-02 | 2015-12-30 | 北京泰坦通源天然气资源技术有限公司 | Multistage sand jet perforation and fracture combined operation method adopting coiled tubing and bottom packer |
| CN106321045A (en) * | 2016-08-23 | 2017-01-11 | 杰瑞能源服务有限公司 | Horizontal well directional sand blasting perforation and fracturing integral tool pipe column and construction method thereof |
| CN108005588A (en) * | 2017-11-02 | 2018-05-08 | 中国石油集团渤海钻探工程有限公司 | A kind of rotatable mechanical casing collar locator (CCL) |
| CN108086964A (en) * | 2017-12-04 | 2018-05-29 | 中煤科工集团西安研究院有限公司 | Coal bed gas horizontal well orients hydrajet tool string and construction method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707362A (en) * | 2019-01-24 | 2019-05-03 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
| CN109707362B (en) * | 2019-01-24 | 2021-01-01 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
| CN111852425A (en) * | 2019-04-24 | 2020-10-30 | 中国石油化工股份有限公司 | Hot dry rock staged fracturing pipe column and application method |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
| CN110206521B (en) * | 2019-05-31 | 2021-11-23 | 山东科技大学 | Coal seam long-drill-hole water injection sectional crack initiation device and method |
| CN110344805A (en) * | 2019-07-16 | 2019-10-18 | 中国矿业大学 | A kind of down-hole drilling directional fracturing device and method |
| CN110344805B (en) * | 2019-07-16 | 2020-12-22 | 中国矿业大学 | Directional fracturing device and method for underground drilling |
| CN113255192A (en) * | 2021-06-17 | 2021-08-13 | 西南石油大学 | Simulation calculation method for setting and bailing force of slips and couplings downhole tool |
| CN113255192B (en) * | 2021-06-17 | 2021-09-21 | 西南石油大学 | Simulation calculation method for setting and bailing force of slips and couplings downhole tool |
| CN114320246A (en) * | 2021-10-19 | 2022-04-12 | 中海油能源发展股份有限公司 | Offshore oil field oil pipe formula water conservancy sandblast fracturing spray gun |
| CN114482940A (en) * | 2022-01-20 | 2022-05-13 | 中煤科工集团西安研究院有限公司 | Jet joint cutting and fracturing integrated device and fracturing method |
| CN114482940B (en) * | 2022-01-20 | 2024-02-27 | 中煤科工集团西安研究院有限公司 | Injection joint-cutting and fracturing integrated device and fracturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108952664A (en) | A kind of oil/gas well straight well orientation water-jet multistage fracturing method | |
| CN101429848B (en) | Method and apparatus for hydraulic jet side drilling for radial branching borehole | |
| CN104196464B (en) | Tubing string string and bridging plug set the method made with abrasive perforating connection | |
| RU2682288C2 (en) | Multilateral access with real-time data transmission | |
| EP1295005A1 (en) | Milling of casing using coiled tubing | |
| CN106837172B (en) | A kind of radial well solves the boring method of thin interbed | |
| CN113279725B (en) | Infinitely variable intelligent rotary dart sliding sleeve | |
| WO2018120581A1 (en) | Flexible tube-assisted delivery device for radial horizontal well | |
| CN103375140A (en) | Radial horizontal well orienting device and method for operating same | |
| CN206246059U (en) | A kind of mechanical guide drilling tool | |
| CN102777162B (en) | Horizontal well directional fracturing device | |
| CN105201461A (en) | Multistage sand jet perforation and fracture combined operation method adopting coiled tubing and bottom packer | |
| CN107130945A (en) | A kind of rupture disk perforated casing box cupling device | |
| CN103615226A (en) | Hydraulic jet drilling and fracturing method | |
| CA2988076C (en) | Establishing hydraulic communication between relief well and target well | |
| CN109594922A (en) | The method that water jet bores radial well operations | |
| CN110671086B (en) | Composite acid fracturing construction pipe column and application method | |
| CN202596577U (en) | Radial horizontal well orienting device | |
| CN214836114U (en) | Multi-branch well bore ultra-short radius windowing sidetrack drilling recoverable positioner | |
| CN207296976U (en) | A kind of perforation tool | |
| CN204960803U (en) | Window-opening rotary hole-distribution guider for coiled tubing jet drilling casing | |
| CN210371142U (en) | Underground screw pump | |
| CN110485926B (en) | Track type radial well guider layer changing device | |
| CN210033402U (en) | Toe end valve | |
| CN109826597A (en) | Straight well determines face hydraulic perforating fracturing device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |
|
| WD01 | Invention patent application deemed withdrawn after publication |