CN204186371U - First section of perforated casing sliding sleeve staged fracturing tool tubing string - Google Patents
First section of perforated casing sliding sleeve staged fracturing tool tubing string Download PDFInfo
- Publication number
- CN204186371U CN204186371U CN201420608755.5U CN201420608755U CN204186371U CN 204186371 U CN204186371 U CN 204186371U CN 201420608755 U CN201420608755 U CN 201420608755U CN 204186371 U CN204186371 U CN 204186371U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- bushing
- staged fracturing
- section
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of first section of perforated casing sliding sleeve staged fracturing tool tubing string, comprise bunch tube, sliding sleeve of bushing I, sliding sleeve of bushing II, sliding sleeve of bushing III, sliding sleeve of bushing IV, sliding sleeve of bushing V, self-locking impacting seat, float collar, casing shoe, guide shoe etc., described sliding sleeve of bushing I, sliding sleeve of bushing II, sliding sleeve of bushing III, sliding sleeve of bushing IV, sliding sleeve of bushing V, self-locking impacting seat, float collar, casing shoe is connected on bunch tube from top to bottom successively with guide shoe, first section of staged fracturing perforation place is provided with on described bunch tube and between sliding sleeve of bushing V and self-locking impacting seat, and described sliding sleeve of bushing V, sliding sleeve of bushing IV, sliding sleeve of bushing III, sliding sleeve of bushing II, sliding sleeve of bushing I is corresponding is respectively arranged on the second segment of the staged fracturing of barefoot interval to the 6th section.Adopt the utility model, do not need to descend staged fracturing tool tubing string specially, do not need the segmentation of packer card layer, turning layer construction does not need middle operation, uses sleeve pipe tubing string to achieve huge discharge, the construction of continuous multi-stage staged fracturing.
Description
Technical field
The utility model relates to oil gas well cementing operation and the completion storey increase design technical field of natural petroleum gas field, exactly relates to a kind of first section of perforated casing sliding sleeve staged fracturing tool tubing string.
Background technology
Carrying out in storey increase design operation process to Oil/gas Well, usually using various different tool tubular column according to the feature of reservoir.Along with the development of exploration and development, the characteristic of reservoir becomes more diversified, the exploitation of the tight gas reservoir particularly pushed open gradually in recent years, construction interval is more, operational discharge capacity is large, adopts conventional single interval card layer fracture acidizing tool tubular column or coiled tubing drag fracturing acidizing treatment more and more can not meet the demands.
In recent years, by large quantifier elimination, define multiple staged fracturing tool tubing string, achieved multistage segmentation, huge discharge, fracturing reform construction continuously, achieve good Reservoir Development effect, significant.
Patent publication No. CN102562019A discloses abrasive perforating annular mechanical packing multiple fracturing tool tubular column and reforming technology, and patent publication No. CN202370495U discloses a kind of Oil/gas Well abrasive perforating annular mechanical packing multiple fracturing tool tubular column.In the wellbore casing of this technology after well cementation, under enter this tool tubular column, at the first perforation of construction interval, then set packer carries out card layer pressing crack construction; But after one deck of having constructed, then deblocking packer, carry out the second construction, the like; Generally from bottom to top, multilayer construction can be realized.Need lower tool tubular column separately, tubing string is more complicated; Need unsealing tool when turning layer, occur deblocking difficulty sometimes; Turn the layer time longer, can not sequential production be realized; This tubing string is oil pipe column, and internal diameter is generally less, is not suitable with the construction of huge discharge tight gas reservoir.
Patent publication No. CN101906955A discloses a kind of oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure.This technology is also in the wellbore casing after well cementation, first at construction interval perforation, then under enter this tool tubular column and carry out setting card layer, then fracture acidizing construction; But after one deck of having constructed, then deblocking packer, carry out the second construction, the like; Generally from bottom to top, multilayer construction can be realized; This technical parts casing pipe by operation pressure, can not protect upper strata sleeve pipe.Do not need lower tool tubular column during construction, tool tubular column is also more complicated; Need unsealing tool when turning layer, occur deblocking difficulty sometimes; Turn the layer time longer, can not sequential production be realized; This tubing string is oil pipe column, and internal diameter is generally less, is not suitable with the construction of huge discharge tight gas reservoir.
Patent publication No. CN201714364U discloses a kind of tubular column for horizontal well barefoot well completion staged fracturing acidizing tool.This tubing string in bore hole under enter, pitching, sit and hang, set, give up, trip out feeding drilling rod, under enter tieback oil pipe column tieback, then construct, interval of constructing is many, can sequential production.This technology to need separately tool tubular column twice; And tubing string is very complicated, costly; Enter risk under tubing string comparatively large, meet midway blocked portion, the processing time is long, costly.
For the deficiency of existing staged fracturing tool tubing string in the construction of multistage staged fracturing, have developed a kind of first section of perforated casing sliding sleeve staged fracturing tool tubing string unlike the prior art, this technology needs to design tubing string according to reservoir characteristics and transformation, oil-gas Layer position is placed on selective for sliding sleeve of bushing, well cementation enters at present, do not need running string again after well cementation, utilize former tubing string to construct.Annular space realizes Inter-zonal packing by cement sheath, and without the need to extra packer card layer, enter coiled tubing perforation under first section of employing, later each section does not need perforation, and adopt pitching, suppress unlatching hair net, fracture acidizing can huge discharge, sequential production.
Utility model content
The utility model is intended to for the defect existing for above-mentioned prior art and deficiency, a kind of well cementation and staged fracturing is provided to share the first perforated casing sliding sleeve staged fracturing tool tubing string of one-trip string, adopt the utility model, do not need to descend staged fracturing tool tubing string specially, do not need the segmentation of packer card layer, turn layer construction and do not need middle operation, use sleeve pipe tubing string to achieve huge discharge, the construction of continuous multi-stage staged fracturing.
The utility model realizes by adopting following technical proposals:
A kind of first section of perforated casing sliding sleeve staged fracturing tool tubing string, it is characterized in that: comprise bunch tube, sliding sleeve of bushing I, sliding sleeve of bushing II, sliding sleeve of bushing III, sliding sleeve of bushing IV, sliding sleeve of bushing V, self-locking impacting seat, float collar, casing shoe, guide shoe etc., described sliding sleeve of bushing I, sliding sleeve of bushing II, sliding sleeve of bushing III, sliding sleeve of bushing IV, sliding sleeve of bushing V, self-locking impacting seat, float collar, casing shoe is connected on bunch tube from top to bottom successively with guide shoe, first section of staged fracturing perforation place is provided with on described bunch tube and between sliding sleeve of bushing V and self-locking impacting seat, and described sliding sleeve of bushing V, sliding sleeve of bushing IV, sliding sleeve of bushing III, sliding sleeve of bushing II, sliding sleeve of bushing I is corresponding is respectively arranged on the second segment of the staged fracturing of barefoot interval to the 6th section.
The ball seat of described sliding sleeve of bushing I, sliding sleeve of bushing II, sliding sleeve of bushing III, sliding sleeve of bushing IV and sliding sleeve of bushing V is drillable ball seat, and opens ball with sliding sleeve and mate.
Described self-locking impacting seat coordinates with isolation bruising plug.
Compared with prior art, the beneficial effects of the utility model show:
1, in the utility model, do not descend staged fracturing tool tubing string specially, share one-trip string with well cementing casing pipe string, first paragraph adopts perforation, later each section by pitching, suppress and realize staged fracturing, tubing string is simpler.
2, in the utility model, utilize cement paste to realize the packing of sliding sleeve annular space, do not need the segmentation of lower packet card layer.
3, in the utility model, when staged fracturing transformation turns layer, do not need middle operation, can sequential production be realized, save the engineering time.
4, in the utility model, adopt bunch tube to carry out segmentation transformation, casing inner diameter is much bigger relative to oil pipe, and flowing frictional resistance is much smaller, is convenient to realize huge discharge and super large discharge construction.
5, in the utility model, sliding sleeve of bushing ball seat can bore, and after ball seat bores and removes, in sliding sleeve of bushing, latus rectum is consistent with bunch tube, is convenient to carry out later stage workover treatment.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 be of the present utility model enter well casing rod structure schematic diagram.
Fig. 2 is the tubular column structure schematic diagram after first section of perforation of the present utility model.
Mark in figure:
1, guide shoe, 2, casing shoe, 3, float collar, 4, self-locking impacting seat, 5, first section of staged fracturing perforation place, 6, sliding sleeve of bushing V, 7, sliding sleeve of bushing IV, 8, sliding sleeve of bushing III, 9, sliding sleeve of bushing II, 10, sliding sleeve of bushing I, 11, bunch tube.
Detailed description of the invention
Segmentation progression in the utility model can be 1 ~ 6 grade, and also can be more than 6 grades, for 6 grades, in conjunction with Figure of description, the utility model is described in further detail below.
As shown in accompanying drawing 1, Fig. 2, the utility model mainly comprises bunch tube 11, sliding sleeve of bushing I 10, sliding sleeve of bushing II 9, sliding sleeve of bushing III 8, sliding sleeve of bushing IV 7, sliding sleeve of bushing V 6, first section of staged fracturing perforation place 5, self-locking impacting seat 4, float collar 3, casing shoe 2, guide shoe 1 etc.Described sliding sleeve of bushing I 10, sliding sleeve of bushing II 9, sliding sleeve of bushing III 8, sliding sleeve of bushing IV 7, sliding sleeve of bushing V 6, self-locking impacting seat 4, float collar 3, casing shoe 2, guide shoe 1 are connected in turn from top to bottom on bunch tube 11.Described sliding sleeve of bushing I 10, sliding sleeve of bushing II 9, sliding sleeve of bushing III 8, sliding sleeve of bushing IV 7, sliding sleeve of bushing V 6 and first section of staged fracturing perforation place 5 are arranged on the staged fracturing position of barefoot interval.The ball seat of described sliding sleeve of bushing I 10, sliding sleeve of bushing II 9, sliding sleeve of bushing III 8, sliding sleeve of bushing IV 7, sliding sleeve of bushing V 6 can bore, and opens ball with the high intensity low density sliding sleeve of specific dimensions and mate.First section of described staged fracturing perforation place 5 is arranged on the first paragraph of staged fracturing construction.Described self-locking impacting seat 4 coordinates with special isolation bruising plug.
Site operation program, in the sliding sleeve of bushing staged fracturing tool tubing string lower going-into-well by design, cementing, drops into special rubber plug, the cement paste in the clean bunch tube of isolation, with self-locking impacting seat 4 bruising self-locking, realizes accurately controlling lower cement plug.After cement paste fully solidifies, be lowered into first section of staged fracturing perforation place 5 with coiled tubing band perforating gun and carry out perforation, then trip out coiled tubing, then carry out first paragraph construction; At the end of first paragraph construction, consider the liquid measure in sleeve pipe, drop into the unlatching ball of sliding sleeve of bushing V 6, open sliding sleeve of bushing V 6 and realize turning layer, carry out second layer construction; By that analogy, carry out the 3rd section, the 4th section ..., finally complete the construction of all staged fracturings.
Claims (3)
1. a first section of perforated casing sliding sleeve staged fracturing tool tubing string, is characterized in that: comprise bunch tube (11), sliding sleeve of bushing I (10), sliding sleeve of bushing II (9), sliding sleeve of bushing III (8), sliding sleeve of bushing IV (7), sliding sleeve of bushing V (6), self-locking impacting seat (4), float collar (3), casing shoe (2) and guide shoe (1), described sliding sleeve of bushing I (10), sliding sleeve of bushing II (9), sliding sleeve of bushing III (8), sliding sleeve of bushing IV (7), sliding sleeve of bushing V (6), self-locking impacting seat (4), float collar (3), casing shoe (2) is connected on bunch tube (11) from top to bottom successively with guide shoe (1), go up at described bunch tube (11) and be positioned between sliding sleeve of bushing V (6) and self-locking impacting seat (4) and be provided with first section of staged fracturing perforation place (5), and described sliding sleeve of bushing V (6), sliding sleeve of bushing IV (7), sliding sleeve of bushing III (8), sliding sleeve of bushing II (9), sliding sleeve of bushing I (10) is corresponding is respectively arranged on the second segment of the staged fracturing of barefoot interval to the 6th section.
2. first section of perforated casing sliding sleeve staged fracturing tool tubing string according to claim 1, it is characterized in that: the ball seat of described sliding sleeve of bushing I (10), sliding sleeve of bushing II (9), sliding sleeve of bushing III (8), sliding sleeve of bushing IV (7) and sliding sleeve of bushing V (6) is drillable ball seat, and open ball with sliding sleeve and mate.
3. first section of perforated casing sliding sleeve staged fracturing tool tubing string according to claim 1, is characterized in that: described self-locking impacting seat (4) coordinates with isolation bruising plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608755.5U CN204186371U (en) | 2014-10-21 | 2014-10-21 | First section of perforated casing sliding sleeve staged fracturing tool tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608755.5U CN204186371U (en) | 2014-10-21 | 2014-10-21 | First section of perforated casing sliding sleeve staged fracturing tool tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186371U true CN204186371U (en) | 2015-03-04 |
Family
ID=52618381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608755.5U Active CN204186371U (en) | 2014-10-21 | 2014-10-21 | First section of perforated casing sliding sleeve staged fracturing tool tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186371U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437618A (en) * | 2016-09-06 | 2017-02-22 | 中国石油天然气股份有限公司 | Subsection well completion tubular column, subsection reforming tubular column and oil well reforming device |
| CN113803016A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Well cementation segmented reconstruction pipe column and method |
| CN113803056A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Single-channel well building shaft operation preparation method |
-
2014
- 2014-10-21 CN CN201420608755.5U patent/CN204186371U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437618A (en) * | 2016-09-06 | 2017-02-22 | 中国石油天然气股份有限公司 | Subsection well completion tubular column, subsection reforming tubular column and oil well reforming device |
| CN113803016A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Well cementation segmented reconstruction pipe column and method |
| CN113803056A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Single-channel well building shaft operation preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105507865B (en) | The method of refracturing for oil gas water well | |
| CN102606124B (en) | The synchronous volume fracturing technology of dual horizontal well segmentation many bunches | |
| CN103967472B (en) | A kind of coal bed gas staged fracturing horizontal well enhanced gas extraction method | |
| CN201714364U (en) | Tubular column for horizontal well barefoot well completion staged fracturing acidizing tool | |
| CN103883293B (en) | Hydraulic jet radial drilling and fracturing integrating method | |
| CN103015955A (en) | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof | |
| CN104420835B (en) | Many cluster perforating and fracturing completion tubular columns and construction method | |
| CN201593405U (en) | Integrated tubular column for horizontal well completion and fracturing production | |
| CN111119826B (en) | Coiled tubing staged fracturing string and string fracturing method | |
| CN102979495A (en) | Multi-cluster current limiting fracturing string of open hole horizontal well and fracturing method thereof | |
| CN206917640U (en) | The steady oil system of offshore oilfield horizontal well automatic control water | |
| CN104963671B (en) | A kind of fracturing reform method of High angle from formula well reservoir | |
| CN107605451A (en) | A kind of ladder discharge capacity fracturing pump injecting method based on combined perforation | |
| CN201620853U (en) | Constant-pressure gasproof pipe column of multilayer mining single pump | |
| CN105587300B (en) | Oil production method for horizontal well | |
| CN107246254A (en) | Coal-based gas U-shaped well drilling and development method | |
| CN204186371U (en) | First section of perforated casing sliding sleeve staged fracturing tool tubing string | |
| CN108180040A (en) | A kind of salt hole air reserved storeroom dual string makes cavity method | |
| CN110439524A (en) | The refracturing remodeling method of oil/gas well | |
| CN202215223U (en) | Technology for limit-free staged fracturing down-hole string of horizontal open well | |
| CN203515342U (en) | Completion pipe string for multi-cluster perforation fracture | |
| CN204186370U (en) | Sliding sleeve of bushing sequential production staged fracturing tool tubing string | |
| CN204283371U (en) | Completion tubular column | |
| CN207177750U (en) | Integrated pipe column | |
| CN105443101A (en) | Compression type double-sealing and single-clamping subsection fracturing process pipe column and fracturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200918 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |