CN204186370U - Casing sliding sleeve continuous construction staged fracturing tool pipe column - Google Patents
Casing sliding sleeve continuous construction staged fracturing tool pipe column Download PDFInfo
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- CN204186370U CN204186370U CN201420608542.2U CN201420608542U CN204186370U CN 204186370 U CN204186370 U CN 204186370U CN 201420608542 U CN201420608542 U CN 201420608542U CN 204186370 U CN204186370 U CN 204186370U
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- sliding sleeve
- bushing
- casing
- staged fracturing
- casing sliding
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000003116 impacting effect Effects 0.000 claims description 11
- 208000034656 Contusions Diseases 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 210000000664 rectum Anatomy 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
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Abstract
The utility model discloses a casing sliding sleeve continuous construction staged fracturing tool string, including casing string, casing sliding sleeve I, casing sliding sleeve II, casing sliding sleeve III, casing sliding sleeve IV, casing sliding sleeve V, trigger formula pressure differential sliding sleeve, auto-lock bump seat, float hoop (3), casing shoes and guide shoe connect gradually from top to bottom on the casing string, casing sliding sleeve I, casing sliding sleeve II, casing sliding sleeve III, casing sliding sleeve IV, casing sliding sleeve V and trigger formula pressure differential sliding sleeve set up the staged fracturing horizon at the bore hole well section. The utility model discloses do not need special lower staged fracturing instrument tubular column, do not need packer card layer segmentation, the operation in the middle of the layer construction does not need is changeed, uses the sleeve pipe tubular column to realize large discharge, continuous multistage staged fracturing construction.
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 sliding sleeve of bushing sequential production 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.
Utility model content
The utility model is intended to for the defect existing for above-mentioned prior art and deficiency, a kind of sliding sleeve of bushing sequential production staged fracturing tool tubing string is provided, the utility model does 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 sliding sleeve of bushing sequential production 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, trigger-type pressure reduction sliding sleeve, self-locking impacting seat, float collar, casing shoe and guide shoe, 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, trigger-type pressure reduction sliding sleeve, self-locking impacting seat, float collar, casing shoe is connected on bunch tube from top to bottom successively with guide shoe, 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 and trigger-type pressure reduction sliding sleeve are arranged on the staged fracturing layer position of barefoot interval.
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, sliding sleeve of bushing V can bore, and opens ball with sliding sleeve and mate.
Described trigger-type pressure reduction sliding sleeve is arranged on the first paragraph of staged fracturing construction.
Described self-locking impacting seat coordinates with isolation bruising plug.
Compared with prior art, the beneficial effect that reaches of the utility model is as follows:
1, in the utility model, do not descend staged fracturing tool tubing string specially, share one-trip string with well cementing casing pipe string, realize multistage staged fracturing storey increase design by suppressing with pitching (or first paragraph employing perforation), 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 is structural representation of the present utility model.
Mark in figure:
1, guide shoe, 2, casing shoe, 3, float collar, 4, self-locking impacting seat, 5, trigger-type pressure reduction sliding sleeve, 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.
Embodiment 1
As a better embodiment of the present utility model, as shown in Figure 1, 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, trigger-type pressure reduction sliding sleeve 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, trigger-type pressure reduction sliding sleeve 5, 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 trigger-type pressure reduction sliding sleeve 5 are arranged on the staged fracturing layer 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.Described trigger-type pressure reduction sliding sleeve 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 sequential production 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, suppress higher pressure, open trigger-type pressure reduction sliding sleeve 5, 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.
Embodiment 2
As another embodiment of the present utility model, when the well adopting sliding sleeve of bushing sequential production staged fracturing tool tubing string to carry out storey increase design construction, exploit through the later stage, when needing again to carry out storey increase design, can descend to bore the bored ball seat of decannulation sliding sleeve, make the interior latus rectum of sliding sleeve of bushing and sleeve pipe overall consistent, enter corresponding oil pipe column down as required again, packer card layer fracture acidizing is carried out to specific reservoir, improve the rate of oil and gas recovery, work is convenient, simple, improves the service efficiency of well to greatest extent.
Claims (4)
1. a sliding sleeve of bushing sequential production staged fracturing tool tubing string, it 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), trigger-type pressure reduction sliding sleeve (5), 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), trigger-type pressure reduction sliding sleeve (5), 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), 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 trigger-type pressure reduction sliding sleeve (5) are arranged on the staged fracturing layer position of barefoot interval.
2. sliding sleeve of bushing sequential production 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), sliding sleeve of bushing V (6) can bore, and open ball with sliding sleeve and mate.
3. sliding sleeve of bushing sequential production staged fracturing tool tubing string according to claim 1, is characterized in that: described trigger-type pressure reduction sliding sleeve (5) is arranged on the first paragraph of staged fracturing construction.
4. sliding sleeve of bushing sequential production 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 |
|---|---|---|---|
| CN201420608542.2U CN204186370U (en) | 2014-10-21 | 2014-10-21 | Casing sliding sleeve continuous construction staged fracturing tool pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608542.2U CN204186370U (en) | 2014-10-21 | 2014-10-21 | Casing sliding sleeve continuous construction staged fracturing tool pipe column |
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| Publication Number | Publication Date |
|---|---|
| CN204186370U true CN204186370U (en) | 2015-03-04 |
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| CN201420608542.2U Active CN204186370U (en) | 2014-10-21 | 2014-10-21 | Casing sliding sleeve continuous construction staged fracturing tool pipe column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401531A (en) * | 2016-12-14 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司 | Coiled tubing switch sliding sleeve for staged fracturing acidizing transformation and control method thereof |
| 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 |
-
2014
- 2014-10-21 CN CN201420608542.2U patent/CN204186370U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401531A (en) * | 2016-12-14 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司 | Coiled tubing switch sliding sleeve for staged fracturing acidizing transformation and control method thereof |
| 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 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200916 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. 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. |