CN201650257U - Variable-diameter release type running tool - Google Patents
Variable-diameter release type running tool Download PDFInfo
- Publication number
- CN201650257U CN201650257U CN2010201877287U CN201020187728U CN201650257U CN 201650257 U CN201650257 U CN 201650257U CN 2010201877287 U CN2010201877287 U CN 2010201877287U CN 201020187728 U CN201020187728 U CN 201020187728U CN 201650257 U CN201650257 U CN 201650257U
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- axle
- sleeve
- outside
- fixedly installed
- type running
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Abstract
The utility model relates to the technical field of setting staged fracturing string devices for multi-layer staged fracturing in the petroleum industry, in particular to a variable-diameter release type running tool which comprises a casing nipple, an upper connecting sleeve, a fixed sleeve, an open sleeve, a mandrel, a mandrel joint and a lower joint, wherein the casing nipple and the upper end of the upper connecting sleeve are fixedly mounted together through threads, the outer side at the lower end of the upper connecting sleeve and the upper end of the fixed sleeve are fixedly mounted together, the inner side at the lower end of the upper connecting sleeve and the outer side at the upper end of the mandrel are fixedly mounted together, the outer side at the lower end of the mandrel and the mandrel joint are fixedly mounted together, the lower joint is arranged on the outer side of the mandrel, and an outer boss with both the upper end surface and the lower end surface taking the shape of trapezoids wide inside and narrow outside is formed on the outer side at the middle part of the mandrel. The variable-diameter release type running tool has the advantages of reasonable and compact structure and convenient use, and can carry out smooth inversion and release after the completion of the fracturing operation penetration construction through the coordination of the spline teeth of the mandrel and the opening of the open sleeve, and realize the penetration operation and the rapid re-alignment and connection of fracturing strings.
Description
One, technical field
The utility model relates to petroleum industry multilayer staged fracturing and is lowered to staged fracturing tubular column unit technical field, but is a kind of reducing releasing type running tool.
Two, background technology
In the construction operation of horizontal well or Multilateral Wells master, branch well hole multilayer staged fracturing, need be lowered to the multilayer staged fracturing tool different reservoir of horizontal well or Multilateral Wells master, branch well hole is carried out staged fracturing.Since in horizontal well with behind the common running tool connection working string G.I.H pressing crack construction, working string will be stayed in the well and run through as oil producing operation, common running tool is difficult to smooth back-off, gives up, so that running tool stays in the well, thereby may cause exploitation difficulty etc.; Perhaps when Multilateral Wells is constructed, the intact running tool of main, branchs well pressure break all can be given up, but flow string can not realize with the centering again of main borehole multiple fracturing instrument, dock, thereby can't carry out oil reservoir exploitation.
Three, summary of the invention
But the utility model provides a kind of reducing releasing type running tool, overcome the deficiency of above-mentioned prior art, its can effectively solve common running tool be difficult to smooth back-off, lose in flow string and main borehole multiple fracturing instrument centering again, the problem of docking.
The technical solution of the utility model realizes by following measure: but a kind of reducing releasing type running tool comprises casing nipple, upper joint sleeve, fixed cover, opening sleeve, axle, axle joint and lower contact; The upper end of casing nipple and upper joint sleeve is fixedly installed togather by screw thread, the outside, lower end of upper joint sleeve is fixedly installed togather with the upper end of fixed cover, the inboard outside, upper end with axle, the lower end of upper joint sleeve is fixedly installed togather, the outside, lower end of axle is fixedly installed togather with the axle joint, in the axle outside lower contact is arranged, the outside, middle part in axle has the upper and lower end face all to be the outer lug boss of the trapezoidal shape of inner wide and outer narrow, upper inner in lower contact has the tapered inner convex platform in upper surface, the lower surface of outer lug boss withstands on the upper surface of inner convex platform, at upper joint sleeve, fixed cover, between axle and the lower contact installation cavity is arranged, opening sleeve is arranged in installation cavity, the outside, lower end of opening sleeve is fixedly installed togather by screw thread with lower contact, between the lower end of opening sleeve, be separated with at least two opening, between on the axle above the outer lug boss, be separated with and the corresponding key tooth of opening, the key tooth is installed in the opening, the top of opening sleeve withstands on the bottom of upper joint sleeve, the top of lower contact withstands on the top of fixed cover, in axle, be installed with sealing device between lower contact and the axle joint.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned sealing device can be outer plug spare and baffle ring, outer plug spare comprises rubber ring and quoit, quoit comprises body and flange, through hole is arranged in body, on body, be fixed with flange, be fixed with rubber ring on the body of flange both sides, body and baffle ring alternately are sleeved on the axle and by the upper surface of axle joint and hold out against.
Between above-mentioned body and the axle sealing ring can be installed, between upper joint sleeve and the axle sealing ring be installed.
The lower end of above-mentioned opening sleeve is toroidal also can be corresponding with the upper surface of outer lug boss.
The outside, bottom of above-mentioned upper joint sleeve can be fixedly installed togather by screw thread with the inboard, upper end of fixed cover.
The inboard outside, upper end with axle, the lower end of above-mentioned upper joint sleeve can and be marked closely by screw thread and be fixedly installed togather.
The outside, lower end of above-mentioned axle can be fixedly installed togather by screw thread with the axle joint.
The utility model reasonable and compact in structure, easy to use, by the cooperation of axle key tooth and opening sleeve opening, can fracturing work run through construction finish the back smoothly back-off give up, and can realize being lowered to operation run through with the rapid again centering of fracturing string be connected.
Four, description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the sectional structure schematic diagram.
Coding in the accompanying drawing is respectively: 1 is casing nipple, and 2 is upper joint sleeve, and 3 is fixed cover, 4 is opening sleeve, and 5 is axle, and 6 is the axle joint, 7 are lower contact, and 8 is outer lug boss, and 9 is inner convex platform, 10 is installation cavity, and 11 is the key tooth, and 12 is baffle ring, 13 is flange, 14 is sealing ring, and 15 is rubber ring, and 16 is body.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, but should comprise casing nipple 1, upper joint sleeve 2, fixed cover 3, opening sleeve 4, axle 5, axle joint 6 and lower contact 7 by reducing releasing type running tool; Casing nipple 1 is fixedly installed togather by screw thread with the upper end of upper joint sleeve 2, the outside, lower end of upper joint sleeve 2 is fixedly installed togather with the upper end of fixed cover 3, the inboard outside, upper end with axle 5, the lower end of upper joint sleeve 2 is fixedly installed togather, the outside, lower end of axle 5 is fixedly installed togather with axle joint 6, in axle 5 outsides lower contact 7 is arranged, the outside, middle part in axle 5 has the upper and lower end face all to be the outer lug boss 8 of the trapezoidal shape of inner wide and outer narrow, upper inner in lower contact 7 has the tapered inner convex platform in upper surface 9, the lower surface of outer lug boss 8 withstands on the upper surface of inner convex platform 9, at upper joint sleeve 2, fixed cover 3, between axle 5 and the lower contact 7 installation cavity 10 is arranged, opening sleeve 4 is arranged in installation cavity 10, the outside, the lower end of opening sleeve 4 and lower contact 7 are fixedly installed togather by screw thread, between the lower end of opening sleeve 4, be separated with at least two opening, between on the axle above the outer lug boss 85, be separated with and the corresponding key tooth 11 of opening, key tooth 11 is installed in the opening, the top of opening sleeve 4 withstands on the bottom of upper joint sleeve 2, the top of lower contact 7 withstands on the top of fixed cover 3, in axle 5, be installed with sealing device between lower contact 7 and the axle joint 6.
Can be according to actual needs, but above-mentioned reducing releasing type running tool is made further optimization and/or improvements:
As shown in Figure 1, sealing device is outer plug spare and baffle ring 12, outer plug spare comprises rubber ring 15 and quoit, quoit comprises body 16 and flange 13, in body 16, through hole is arranged, be fixed with flange 13 on body 16, be fixed with rubber ring 15 on the body 16 of flange 13 both sides, body 16 and baffle ring 12 alternately are sleeved on the axle 5 and by the upper surface of axle joint 6 and hold out against.
As shown in Figure 1,, between body 16 and the axle 5 sealing ring 14 is installed, between upper joint sleeve 2 and the axle 5 sealing ring 14 is installed in order to increase sealing.
As shown in Figure 1, the lower end of opening sleeve 4 is toroidal and corresponding with the upper surface of outer lug boss 8.
As shown in Figure 1, for the ease of installation and removal, the outside, the bottom of upper joint sleeve 2 is fixedly installed togather by screw thread with the inboard, upper end of fixed cover 3.
As shown in Figure 1, for the ease of installation and removal, the inboard outside, upper end with axle 5, the lower end of upper joint sleeve 2 is fixedly installed togather with marking closely by screw thread.
As shown in Figure 1, for the ease of installation and removal, the outside, the lower end of axle 5 and axle joint 6 are fixedly installed togather by screw thread.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: during on-the-spot the use, connect multilayer staged fracturing tubing string G.I.H with the utility model, set packer, after implementing fracturing work, casing nipple 1 turns clockwise, opening sleeve 4 and lower contact 7 break away from, because key tooth 11 is installed in the opening, opening sleeve 4 drives axle 5, axle joint 6, upper joint sleeve 2, fixed cover 3 and casing nipple 1 and regained by whole.Need be lowered to working string and pressure break pipe polyphone again when connecing, working string is connected G.I.H with the utility model, owing to opening sleeve 4 inwalls have step and lower end that opening is arranged, opening sleeve 4 and lower contact 7 easily again centering, be connected, can the smooth construction operation.
Claims (10)
1. but a reducing releasing type running tool is characterized in that comprising casing nipple, upper joint sleeve, fixed cover, opening sleeve, axle, axle joint and lower contact; The upper end of casing nipple and upper joint sleeve is fixedly installed togather by screw thread, the outside, lower end of upper joint sleeve is fixedly installed togather with the upper end of fixed cover, the inboard outside, upper end with axle, the lower end of upper joint sleeve is fixedly installed togather, the outside, lower end of axle is fixedly installed togather with the axle joint, in the axle outside lower contact is arranged, the outside, middle part in axle has the upper and lower end face all to be the outer lug boss of the trapezoidal shape of inner wide and outer narrow, upper inner in lower contact has the tapered inner convex platform in upper surface, the lower surface of outer lug boss withstands on the upper surface of inner convex platform, at upper joint sleeve, fixed cover, between axle and the lower contact installation cavity is arranged, opening sleeve is arranged in installation cavity, the outside, lower end of opening sleeve is fixedly installed togather by screw thread with lower contact, between the lower end of opening sleeve, be separated with at least two opening, between on the axle above the outer lug boss, be separated with and the corresponding key tooth of opening, the key tooth is installed in the opening, the top of opening sleeve withstands on the bottom of upper joint sleeve, the top of lower contact withstands on the top of fixed cover, in axle, be installed with sealing device between lower contact and the axle joint.
2. but reducing releasing type running tool according to claim 1, it is characterized in that sealing device is outer plug spare and baffle ring, outer plug spare comprises rubber ring and quoit, quoit comprises body and flange, through hole is arranged in body, be fixed with flange on body, be fixed with rubber ring on the body of flange both sides, body and baffle ring alternately are sleeved on the axle and by the upper surface of axle joint and hold out against.
3. but reducing releasing type running tool according to claim 2 is characterized in that between body and the axle sealing ring being installed, and between upper joint sleeve and the axle sealing ring is installed.
4. but according to claim 1 or 2 or 3 described reducing releasing type running tools, it is characterized in that the lower end of opening sleeve is toroidal and corresponding with the upper surface of outer lug boss.
5. but, it is characterized in that the outside, bottom of upper joint sleeve and the inboard, upper end of fixed cover are fixedly installed togather by screw thread according to claim 1 or 2 or 3 described reducing releasing type running tools.
6. but reducing releasing type running tool according to claim 4 is characterized in that the outside, bottom of upper joint sleeve and the inboard, upper end of fixed cover are fixedly installed togather by screw thread.
7. but, it is characterized in that the inboard outside, upper end with axle, lower end of upper joint sleeve is fixedly installed togather with marking closely by screw thread according to claim 1 or 2 or 3 described reducing releasing type running tools.
8. but reducing releasing type running tool according to claim 4 is characterized in that the inboard outside, upper end with axle, lower end of upper joint sleeve is fixedly installed togather with marking closely by screw thread.
9. but reducing releasing type running tool according to claim 5 is characterized in that the inboard outside, upper end with axle, lower end of upper joint sleeve is fixedly installed togather with marking closely by screw thread.
10. but reducing releasing type running tool according to claim 9 is characterized in that the outside, lower end of axle is fixedly installed togather by screw thread with the axle joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201877287U CN201650257U (en) | 2010-05-12 | 2010-05-12 | Variable-diameter release type running tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201877287U CN201650257U (en) | 2010-05-12 | 2010-05-12 | Variable-diameter release type running tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650257U true CN201650257U (en) | 2010-11-24 |
Family
ID=43115491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201877287U Expired - Fee Related CN201650257U (en) | 2010-05-12 | 2010-05-12 | Variable-diameter release type running tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251753A (en) * | 2011-06-23 | 2011-11-23 | 中国石油天然气股份有限公司 | Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| CN111022015A (en) * | 2018-10-10 | 2020-04-17 | 中国石油化工股份有限公司 | Horizontal well open hole staged fracturing pipe column well descending device |
-
2010
- 2010-05-12 CN CN2010201877287U patent/CN201650257U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251753A (en) * | 2011-06-23 | 2011-11-23 | 中国石油天然气股份有限公司 | Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| CN102251753B (en) * | 2011-06-23 | 2013-10-16 | 中国石油天然气股份有限公司 | Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| CN111022015A (en) * | 2018-10-10 | 2020-04-17 | 中国石油化工股份有限公司 | Horizontal well open hole staged fracturing pipe column well descending device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20160512 |