CN201106443Y - Controllable sandblaster being convenient to disjoint - Google Patents
Controllable sandblaster being convenient to disjoint Download PDFInfo
- Publication number
- CN201106443Y CN201106443Y CNU2007201953823U CN200720195382U CN201106443Y CN 201106443 Y CN201106443 Y CN 201106443Y CN U2007201953823 U CNU2007201953823 U CN U2007201953823U CN 200720195382 U CN200720195382 U CN 200720195382U CN 201106443 Y CN201106443 Y CN 201106443Y
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- CN
- China
- Prior art keywords
- open slot
- sand
- lower contact
- shape open
- sandblast body
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- Expired - Lifetime
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Abstract
The utility model relates to a controllable sand blower with convenient disjunction, and the controllable sand blower comprises a sand blasting body, a sliding sleeve and a lower joint. An N-shaped open slot is arranged at a side wall at the lower end of the sand blasting body, and an opening of the open slot is downward. The side wall of the lower joint corresponding to the N-shaped open slot is connected with a pin which enters into the N-shaped open slot. Long slot holes are arranged at the circumference of the side wall of the sand blasting body at the upper part of the N-shaped open slot along the axial direction to cause an elastic ribbed slab to be formed between every two long slot holes. A lug boss is protruded in the middle of the elastic ribbed slab, and a protruded ring edge is arranged on the inner wall of the lower joint corresponding to the lug boss. The controllable sand blower with convenient disjunction has the advantages that: if sand jamming does not occur, a pipe string is directly lifted upwards, the sand blasting body drives the lower joint by the pin to lift all the tools below, thereby greatly enhancing the work efficiency and lowering the production cost; if the sand jamming occurs, the pipe string is clockwise rotated from the ground to ensure that the pin carries on transposition in the N-shaped open slot of the sand blasting body, and then, the pipe string is lifted upwards to make the lower end of the sand blasting body to be disengaged from the lower joint, thereby realizing disjointed separation.
Description
Technical field
The utility model relates to oil field development down-hole facility technical field, is that a kind of controllable type makes things convenient for disjoint sandblaster.
Background technology
Oil field development is produced to improving oil well output, often needs fracturing technology transformation.For multilayer is that oil well separate stratum fracfturing commonly used is transformed, to improve well yield.And the separate stratum fracfturing reforming technology need be implemented by the separate stratum fracfturing tubing string, and the utility model is important facility in the separate stratum fracfturing tubing string.
Employed sandblaster can be divided into two kinds of fixed and disconnection formulas on the fracturing string, fixedly can not throw off exactly, also be make at present with the most use, in case the separate stratum fracfturing operating tool string takes place by the sand card then must carry out large repairs to the construction well; The disconnection formula can be thrown off exactly, and present use amount also seldom when operating tool string generation sand card, also can be carried out segmentation to the separate stratum fracfturing tubing string and trip out, thereby needn't carry out large repairs to the construction well.
China's special issue: 200420092491.9 disclosed " can move back disjoint sandblaster ", form by parts such as joint, sandblast body, sandblast guard shield, sliding sleeve, pawl spring, lower contact, lock dogs.In the dividing potential drop process, throw steel ball and suppress and make sliding sleeve descending, on pawl spring is shunk when carrying, this disjoint sandblaster takes off into two sections, after the dividing potential drop construction was finished, epimere proposed with packer, hypomere need descend special tool to salvage while washing.
Because this can move back disjoint sandblaster and promptly disconnect after sliding sleeve is laid, whether the sand card all needs segmental salvage to tubing string, so do not greatly reduce efficient and increased cost the situation of sand card during concerning construction.
In the separate stratum fracfturing construction, fracturing sand flow to the stratum from ground by the separate stratum fracfturing tubing string under the carrying of liquid, because the density of fracturing sand is bigger than density of liquid, under the effect of gravity with liquid generation sedimentation separation, the part fracturing sand will break away from liquid and sedimentation, packer on the tubing string seals with sleeve pipe under the envelope state, fracturing sand is blocked between the tubing string and sleeve pipe on packer top, be connected with multiple-string packer on the tubing string again, all the fracturing sand sedimentation can be arranged on every grade of packer, thereby tubing string is stuck in the well.At this moment, general separate stratum fracfturing tubing string is because the structure that do not disconnect, and full well casing post then can't normally trip out, need be with back-off, brill, the overhaul method such as grind, mill and just can trip out, and will cause the workover treatment time long like this, the result that construction cost is high; If use as the described disjoint sandblaster that moves back of document, though the method that can take the segmentation sand washing to salvage trips out down-hole string successively, but, also must take the method to trip out down-hole string under the situation that the sand card does not take place, this increases unnecessary workload and the problem of engineering time with regard to having caused.
Summary of the invention
The purpose of this utility model provides the convenient sandblaster that disconnects of a kind of controllable type, it look sandblaster whether the situation of sand card can artificially control its whether segmental salvage tubing string, thereby can increase work efficiency greatly and reduce production costs.
For achieving the above object, the utility model is taked following design scheme:
The convenient sandblaster that disconnects of a kind of controllable type, it includes sandblast body, sliding sleeve, lower contact, described sliding sleeve is arranged in the sandblast body, the Lower Half of described sandblast body is inserted in the lower contact and is connected with lower contact, it is characterized in that: on the sidewall of the lower end of sandblast body, be provided with и shape open slot, the opening of this и shape open slot on the lower contact sidewall of и shape open slot correspondence, is connected with the pin that enters и shape open slot down; On the sidewall circumference of the sandblast body on и shape open slot top, have long slot bore vertically, make and form the elasticity floor between the long slot bore, middle part at the elasticity floor is protruding with boss, is provided with the annular edge of protrusion on the lower contact inwall of boss correspondence, and described boss is in the bottom on annular edge.
Because sliding sleeve is arranged in the sandblast body, and the lower end of this sliding sleeve is in the inboard of elasticity floor, supporting the elasticity floor, making the elasticity floor radially elastic deformation can not take place, then the middle part of elasticity floor is protruding with the annular of protruding on boss and the lower contact inwall and interconnects along formation.
On the sidewall of the lower end of sandblast body, be laid with 2～4 и shape open slots, on the lower contact sidewall of и shape open slot correspondence, be connected with 2～4 pins that enter и shape open slot of equal number.Being connected of this и shape open slot and pin forms sandblast body and lower contact controllable disjoint function.
Cross-under has the shear pin that sandblast body and sliding sleeve are connected between the sidewall of sandblast body and sliding sleeve.
Between sandblast body and lower contact socket, be provided with sealing ring.
The utility model has the advantages that: owing on the sidewall of the lower end of sandblast body, be provided with и shape open slot, and cooperate pin to be connected with lower contact, form the sandblaster controllable disjoint; After pressing crack construction is intact, if sand card not, direct upper lifting pipe post then, the sandblast body drives lower contact all instruments below proposing by pin, thereby has improved operating efficiency greatly and reduced cost of production; If the then positive hour hands swinging head post from ground of sand card takes place, pin is replaced in the и of sandblast body shape open slot, and the upper lifting pipe post is deviate from sandblast body lower end from lower contact then, realizes disconnecting and separates, and then fishing tool carries out segmentation sand washing salvaging down, to improve safety.
Description of drawings
Fig. 1 is the structural representation that partly cuts open of the present utility model.
Fig. 2 is that sandblast body of the present utility model partly cuts open structural representation.
Fig. 3 is that structural representation is partly cutd open in lower contact of the present utility model.
Fig. 4 is that Fig. 3 A is to sandblast hole schematic diagram.
Fig. 5 is that sandblast body lower end и shape open slot launches enlarged diagram.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: the convenient sandblaster that disconnects of a kind of controllable type, it includes sandblast body 2, sliding sleeve 4, lower contact 12, described sliding sleeve 4 is arranged in the sandblast body 2, sandblast hole 3 is blocked, the Lower Half of described sandblast body 2 is inserted in the lower contact 12 and is connected with lower contact 12, on the sidewall of the lower end of sandblast body 2, be provided with и shape open slot 13, the opening of this и shape open slot 13 down, on lower contact 12 sidewalls of и shape open slot 13 correspondences, be connected with the pin 11 that enters и shape open slot; On the sidewall circumference of the sandblast body on и shape open slot top, have long slot bore 10 vertically, make and form elasticity floor 9 between the long slot bore 10, be protruding with boss 8 at the middle part of elasticity floor 9, the annular that is provided with protrusion on the lower contact inwall of boss 8 correspondences is along 7, and described boss 8 is in the bottom of annular along 7.
On the sidewall of the lower end of sandblast body 2, be laid with 3 и shape open slots 13 (also can 2 or 4), on the lower contact sidewall of и shape open slot correspondence, be connected with 3 pins 11 entering и shape open slot (also can 2 or 4).Sandblast body 2 is linked to each other by pin 11 with lower contact 12, and this и shape open slot 13 forms sandblast body and lower contact controllable disjoint function with being connected of pin 11.
Cross-under has the shear pin 5 that sandblast body and sliding sleeve are connected between the sidewall of sandblast body 2 and sliding sleeve 4.
Between sandblast body 2 and lower contact 12 sockets, be provided with sealing ring 6, form the sand control sealing.
During pressing crack construction, the throwing steel ball is suppressed back sliding sleeve 4 and is cut off shear pin 5, makes sliding sleeve 4 go downwards to the bottom of lower contact 12, begins pressing crack construction.Can control according to circumstances after pressing crack construction is finished and whether disconnect; If the sand card does not take place, then the upper lifting pipe post 1, and pin 11 is moved by a point that is in и shape open slot and is shifted to b point (seeing shown in Figure 3), and sandblast body 2 is passed to lower contact 12 by pin 11 with pulling force, and then sandblaster can propose smoothly.If when sand calorie requirement sandblaster taking place disconnecting, then the positive hour hands swinging head post 1 from ground drives sandblast body 2 and rotates, make pin 11 in и shape open slot 13 from the b point transposition to c point, carry sandblast body 2 on then and make pin 11 prolong и shape open slot to deviate from through the d point from the c point.Because sliding sleeve 4 goes downwards to the bottom of lower contact 12, elasticity floor 9 inboards are lost the effect of support, when carrying on the sandblast body 2, boss 8 is subjected to annular along 7 stop, make elasticity floor 9 form elastic deformation, thereby sandblast body 2 lower ends are deviate from from lower contact 12, realize disconnecting and separate, and then fishing tool carries out segmentation sand washing salvaging down, to improve safety.
Owing on the sidewall of the lower end of sandblast body 2, be provided with и shape open slot 13, and cooperate pin 11 to be connected, form the sandblaster controllable disjoint with lower contact 12; After pressing crack construction is intact, if sand card not, direct upper lifting pipe post 1 then, sandblast body 2 drives lower contacts all instruments below proposing by pin 11, thereby has improved operating efficiency greatly and reduced cost of production.
Claims (4)
1, the convenient sandblaster that disconnects of a kind of controllable type, it includes sandblast body (2), sliding sleeve (4), lower contact (12), described sliding sleeve (4) is arranged in the sandblast body (2), the Lower Half of described sandblast body (2) is inserted in the lower contact (12) and is connected with lower contact (12), it is characterized in that: on the lower end sidewall of sandblast body (2), be provided with и shape open slot (13), the opening of this и shape open slot (13) down, on corresponding lower contact (12) sidewall of и shape open slot (13), be connected with the pin (11) that enters и shape open slot; On the sidewall circumference of the sandblast body on и shape open slot top, have long slot bore (10) vertically, make and form elasticity floor (9) between the long slot bore (10), be protruding with boss (8) at the middle part of elasticity floor (9), the annular that is provided with protrusion on the corresponding lower contact inwall of boss (8) is along (7), and described boss (8) is in the bottom of annular along (7).
2, the convenient sandblaster that disconnects of controllable type according to claim 1, it is characterized in that: on the lower end sidewall of sandblast body (2), be laid with 2～4 и shape open slots (13), on the corresponding lower contact sidewall of и shape open slot (13), be connected with 2～4 pins (11) that enter и shape open slot of equal number.
3, the convenient sandblaster that disconnects of controllable type according to claim 1 is characterized in that: cross-under has the shear pin (5) that sandblast body and sliding sleeve are connected between the sidewall of sandblast body (2) and sliding sleeve (4).
4, the convenient sandblaster that disconnects of controllable type according to claim 1 is characterized in that: be provided with sealing ring (6) between sandblast body (2) and lower contact (12) socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201953823U CN201106443Y (en) | 2007-03-16 | 2007-11-12 | Controllable sandblaster being convenient to disjoint |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720103867.5 | 2007-03-16 | ||
| CNU2007201038675U CN201013343Y (en) | 2007-03-16 | 2007-03-16 | Controllable type conveniently aparted sand-blower |
| CNU2007201953823U CN201106443Y (en) | 2007-03-16 | 2007-11-12 | Controllable sandblaster being convenient to disjoint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106443Y true CN201106443Y (en) | 2008-08-27 |
Family
ID=39025129
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201038675U Expired - Lifetime CN201013343Y (en) | 2007-03-16 | 2007-03-16 | Controllable type conveniently aparted sand-blower |
| CNU2007201953823U Expired - Lifetime CN201106443Y (en) | 2007-03-16 | 2007-11-12 | Controllable sandblaster being convenient to disjoint |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201038675U Expired - Lifetime CN201013343Y (en) | 2007-03-16 | 2007-03-16 | Controllable type conveniently aparted sand-blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN201013343Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173606B (en) * | 2007-03-16 | 2010-06-02 | 安东石油技术（集团）有限公司 | Controllable disjoint sandblaster |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062042A (en) * | 2013-01-31 | 2013-04-24 | 陕西大德油田设备制造有限公司 | Oil well pump and oil pipe connecting device |
| CN107816330B (en) * | 2016-09-13 | 2019-10-11 | 中国石油天然气股份有限公司 | A kind of well-flushing sealing device |
-
2007
- 2007-03-16 CN CNU2007201038675U patent/CN201013343Y/en not_active Expired - Lifetime
- 2007-11-12 CN CNU2007201953823U patent/CN201106443Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173606B (en) * | 2007-03-16 | 2010-06-02 | 安东石油技术（集团）有限公司 | Controllable disjoint sandblaster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201013343Y (en) | 2008-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080827 Effective date of abandoning: 20071112 |