CN202381064U - Dedicated tool integrated with laminating and fracturing - Google Patents
Dedicated tool integrated with laminating and fracturing Download PDFInfo
- Publication number
- CN202381064U CN202381064U CN201120476891XU CN201120476891U CN202381064U CN 202381064 U CN202381064 U CN 202381064U CN 201120476891X U CN201120476891X U CN 201120476891XU CN 201120476891 U CN201120476891 U CN 201120476891U CN 202381064 U CN202381064 U CN 202381064U
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- China
- Prior art keywords
- sandblast
- sliding sleeve
- sleeve
- sand blasting
- centre bore
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a dedicated tool integrated with laminating and fracturing, which is applied to downhole petroleum laminating and fracturing construction. The outer wall of a sand blasting main body is uniformly distributed with sand blasting holes and is fixedly provided with an anchor fluke pressing plate and three anchor flukes; the lower end of the sand blasting main body is provided with a righting connecting sleeve in a threaded connection manner; the lower end of the righting connecting sleeve is sleeved at the outer wall at the top part of a fishing socket, and the righting connecting sleeve is fixed through a releasing shear pin; a sectioning fluke sleeve is arranged at the lower end of a center hole of the sand blasting main body in a connection manner; the sand blasting main body is internally sleeved with a cylinder-shaped sand blasting sliding sleeve, and the cylinder-shaped sans blasting sliding sleeve is fixed through a sliding sleeve shear pin; the lower end of the sand blasting sliding sleeve is connected with a lock sleeve; and the lower end of the lock sleeve is arranged in the center hole at the upper part of the fishing socket. The dedicated tool integrated with laminating and fracturing, disclosed by the utility model, has the effects that by integrating a hydraulic anchor, the sand blasting sliding sleeve and the releasing function, the normal one-step tubular column laminating and fracturing can be realized, and the problems of polluting the stratum due to repeated salvage, prolonging the operation period, increasing the operation cost and the like are avoided under the condition of ensuring the normal fracturing construction.
Description
Technical field
The utility model relates to oil and gas exploitation oil (gas) well production technique field, and is particularly a kind of to the working downhole tool of separate stratum fracfturing, is a kind of special tool that collects hydraulic anchor, sandblast sliding sleeve and back-off sub function integration.
Background technology
When domestic each oilfield well mechanical isolation separate stratum fracfturing was constructed, a kind of was not consider to press the back deblocking, and directly blowout prevention is gone into operation, and when treating that output is lower than economic production quantity, last overhaul power deblocking tubing string pollutes oil reservoir, influences output, and the later stage workover cost is high; Adopt conventional design of string pipe,, surpass the maximum upper lifting force of Ground Operation machine or tubing string, cause tubing string to be blocked because a plurality of packer while deblocking causes the stack of deblocking power excessive.Another kind is to consider the deblocking fracturing string.The method that one Chinese patent application 200920173234.0 discloses a kind of " detachable separate stratum fracfturing process pipe string "; This method is to propose to adopt detachable sliding sleeve; Can realize the automatic separation of lower packet on the sliding sleeve in the pressing crack construction, though reduced sand card tubing string risk, the deblocking tubing string is to need two-layer fishing; Duty cycle is long, polluted reservoir.
The utility model content
The purpose of the utility model is: provide a kind of separate stratum fracfturing integrated special tool, satisfy normal separate stratum fracfturing and add the sand construction simultaneously, after pressure break finishes; Last pressure-raising splits tubing string, once trips out the dividing potential drop tubing string, avoids dividing potential drop tubing string sand card phenomenon; Control dividing potential drop tubing string is salvaged number of times; Thereby reach safety work, reduce oil layer pollution, practice thrift the purpose of workover treatment cost.
The technical scheme that the utility model adopts is: the integrated special tool of separate stratum fracfturing, mainly by sandblast body, bridge screw, anchor fluke, anchor fluke pressing plate, go up sealing ring, sandblast sliding sleeve, sliding sleeve shear pin, set upright adapter sleeve, divide claw cover, the shear pin of giving up, lower seal, lock tube and fishing socket to form; The sandblast body has centre bore for the cylinder bodily form, in the upper end of sandblast body screw thread is arranged, and can be connected on the down-hole string, is evenly distributed with the sandblast hole on the sandblast body outer wall; In sandblast sliding sleeve centre bore, conical seal receptacle is arranged, when steel ball seat is enclosed on the sandblast sliding sleeve seal receptacle, the sandblast sliding sleeve can and be cut off the sliding sleeve shear pin and open the sandblast hole to lower slider; On the outer wall of sandblast body, be milled with the plane of symmetry, be fixed with the anchor fluke pressing plate through bridge screw in the plane, be connected with three anchor flukes between anchor fluke pressing plate and the sandblast body; It is characterized in that: there is external screw thread the lower end at the sandblast body, is connected with through sandblast body lower end external screw thread and sets upright adapter sleeve; Setting upright adapter sleeve is that the cylindrical shape upper end has internal thread; The lower end of setting upright adapter sleeve is enclosed within on the fishing socket top exterior walls, and will set upright the top that adapter sleeve is fixed on fishing socket through six shear pins of giving up; Be connected with the branch claw cover of an annular in sandblast body centre bore lower end; In sandblast body centre bore, be with a columnar sandblast sliding sleeve, the sandblast sliding sleeve be fixed in the sandblast body centre bore through four sliding sleeve shear pins; Between sandblast sliding sleeve and the sandblast body last sealing ring is arranged; The lower end of sandblast sliding sleeve is passed and is set upright adapter sleeve, and the lower end of sandblast sliding sleeve is connected with columnar lock tube, between sandblast sliding sleeve and lock tube, lower seal is arranged; The lower end of lock tube is in the centre bore on fishing socket top.
The operating principle of the integrated special tool of summary separate stratum fracfturing.Consult Fig. 1.Be connected in the mechanical isolation separate stratum fracfturing tubing string, particularly three with upper packer separate stratum fracfturing tubing string.During pressure break, drop into steel ball and drop on the sandblast sliding sleeve 6, ground is suppressed, and when the preset power of pressure above sliding sleeve shear pin 7, sandblast sliding sleeve 6 is descending, the beginning pressing crack construction; After pressure break finished, last pressure-raising split tubing string, and in upper lifting force was being given up the power that the presets scope of shear pin 10, then instrument was up, disposable tripping out; When upper lifting force surpass the shear pin 10 of giving up preset power the time, then instrument overlaps 9 from a minute claw and gives up, and trips out the top instrument, is lowered to fishing tool and gets into fishing socket 13 inside, will remain tools section and trip out.
The beneficial effect of the utility model: the integrated special tool of the utility model separate stratum fracfturing; With hydraulic anchor, sandblast sliding sleeve and the function integration of giving up, can realize normal one-trip string dividing potential drop multilayer, guaranteeing that normal pressing crack construction is simultaneously; According to different oil (gas) well construction situation; Disposable or segmentation trips out fracturing string, has avoided sand card tubing string, has also reduced the fishing well.If deblocking power makes a concerted effort to have surpassed preset range, upper lifting pipe post then, cutting off gives up cuts off; Trip out the top tubing string, be lowered to behind the instrument the instrument completion of following step, thereby avoid fracturing string not block; And repeatedly salvage and pollute the stratum, prolong duty cycle, increase problems such as operating cost.
Description of drawings
Fig. 1 is the integrated special tool structural profile of a utility model separate stratum fracfturing sketch map.
Among the figure, 1-sandblast body, the 2-bridge screw, the 3-anchor fluke, 4-anchor fluke pressing plate, the 5-sealing ring, 6-sandblast sliding sleeve, 7-sliding sleeve shear pin, 8-sets upright adapter sleeve, and 9-divides the claw cover, the 10-shear pin of giving up, 11-sealing ring, 12-lock tube, 13-fishing socket.
The specific embodiment
Embodiment 1: with an integrated special tool of separate stratum fracfturing is example, and the utility model is done further explain.
Consult Fig. 1.The integrated special tool of the utility model separate stratum fracfturing, mainly by sandblast body 1, bridge screw 2, anchor fluke 3, anchor fluke pressing plate 4, go up sealing ring 5, sandblast sliding sleeve 6, sliding sleeve shear pin 7, set upright adapter sleeve 8, divide claw cover 9, the shear pin 10 of giving up, lower seal 11, lock tube 12 and fishing socket 13 to form.
Sandblast body 1 has centre bore for the cylinder bodily form, in the upper end of sandblast body 1 screw thread is arranged, and can be connected on the down-hole string, is evenly distributed with four rectangular sandblast holes on sandblast body 1 outer wall; Conical seal receptacle inclined-plane is arranged in sandblast sliding sleeve 6 centre bores.On the outer wall of sandblast body 1, be milled with the plane of symmetry, be fixed with anchor fluke pressing plate 4 through bridge screw 2 in the plane, be connected with three anchor flukes 3 between anchor fluke pressing plate 4 and the sandblast body 1.Above structure is identical with present sandblaster structure.
Consult Fig. 1.There is external screw thread lower end at sandblast body 1, is connected with through sandblast body 1 lower end external screw thread and sets upright adapter sleeve 8; Set upright adapter sleeve 8 and internal thread is arranged for the cylindrical shape upper end; The lower end of setting upright adapter sleeve 8 is enclosed within on fishing socket 13 top exterior walls, and will set upright the top that adapter sleeve 8 is fixed on fishing socket 13 through equally distributed six shear pins 10 of giving up; Be connected with the branch claw cover 9 of an annular in sandblast body 1 centre bore lower end; In sandblast body 1 centre bore, be with a columnar sandblast sliding sleeve 6, sandblast sliding sleeve 6 be fixed in sandblast body 1 centre bore through equally distributed four sliding sleeve shear pins 7; Sandblast sliding sleeve 6 has last sealing ring 5 between sandblast body 1; The lower end of sandblast sliding sleeve 6 is passed and is set upright adapter sleeve 8, and the lower end of sandblast sliding sleeve 6 is connected with columnar lock tube 12, at sandblast sliding sleeve 6 lower seal 11 is arranged between lock tube 12; The lower end of lock tube 12 is in the centre bore on fishing socket 13 tops.
Claims (1)
1. integrated special tool of separate stratum fracfturing, mainly by sandblast body (1), bridge screw (2), anchor fluke (3), anchor fluke pressing plate (4), go up sealing ring (5), sandblast sliding sleeve (6), sliding sleeve shear pin (7), set upright adapter sleeve (8), divide claw cover (9), the shear pin of giving up (10), lower seal (11), lock tube (12) and fishing socket (13) to form; Sandblast body (1) has centre bore for the cylinder bodily form, in the upper end of sandblast body (1) screw thread is arranged, and is evenly distributed with the sandblast hole on sandblast body (1) outer wall; In sandblast sliding sleeve (6) centre bore, conical seal receptacle is arranged; On the outer wall of sandblast body (1), be milled with the plane of symmetry, be fixed with anchor fluke pressing plate (4) through bridge screw (2) in the plane, be connected with three anchor flukes (3) between anchor fluke pressing plate (4) and the sandblast body (1); It is characterized in that: there is external screw thread the lower end at sandblast body (1), is connected with through sandblast body (1) lower end external screw thread and sets upright adapter sleeve (8); Set upright adapter sleeve (8) and internal thread is arranged for the cylindrical shape upper end; The lower end of setting upright adapter sleeve (8) is enclosed within on fishing socket (13) top exterior walls, and will set upright the top that adapter sleeve (8) is fixed on fishing socket (13) through six shear pins of giving up (10); Be connected with the branch claw cover (9) of an annular in sandblast body (1) centre bore lower end; In sandblast body (1) centre bore, be with a columnar sandblast sliding sleeve (6), sandblast sliding sleeve (6) be fixed in sandblast body (1) centre bore through four sliding sleeve shear pins (7); Between sandblast sliding sleeve (6) and the sandblast body (1) last sealing ring (5) is arranged; The lower end of sandblast sliding sleeve (6) is passed and is set upright adapter sleeve (8), and the lower end of sandblast sliding sleeve (6) is connected with columnar lock tube (12), between sandblast sliding sleeve (6) and lock tube (12), lower seal (11) is arranged; The lower end of lock tube (12) is in the centre bore on fishing socket (13) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120476891XU CN202381064U (en) | 2011-11-25 | 2011-11-25 | Dedicated tool integrated with laminating and fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120476891XU CN202381064U (en) | 2011-11-25 | 2011-11-25 | Dedicated tool integrated with laminating and fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381064U true CN202381064U (en) | 2012-08-15 |
Family
ID=46629577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120476891XU Expired - Fee Related CN202381064U (en) | 2011-11-25 | 2011-11-25 | Dedicated tool integrated with laminating and fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266875A (en) * | 2013-02-28 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fracturing operation method of multistage hydraulic jet staged fracturing tubular column |
-
2011
- 2011-11-25 CN CN201120476891XU patent/CN202381064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266875A (en) * | 2013-02-28 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fracturing operation method of multistage hydraulic jet staged fracturing tubular column |
| CN103266875B (en) * | 2013-02-28 | 2015-12-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of multi-stage water power sprays the fracture job method of fracturing strings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20201125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |