CN103184858B - Stop means - Google Patents
Stop means Download PDFInfo
- Publication number
- CN103184858B CN103184858B CN201110449810.1A CN201110449810A CN103184858B CN 103184858 B CN103184858 B CN 103184858B CN 201110449810 A CN201110449810 A CN 201110449810A CN 103184858 B CN103184858 B CN 103184858B
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- stopper
- spacing
- stop means
- tube wall
- spacing collar
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Abstract
The invention relates to a kind of stop means, comprise spacing collar and stopper, spacing collar is tubulose, and within it wall is provided with internal thread; Stopper is tubulose, and its bottom outer wall is provided with outside screw, mates mutually with the internal thread of spacing collar. The middle part tube wall of described spacing collar is provided with many group spacing hole groups, and this spacing hole group is made up of multiple spacing hole being distributed in tube wall circumference. The top of stopper is skewed tapered cut, should offer U-type groove on the lowest part tube wall of tapered cut; Offering multiple spacing groove to tube wall inner recess on the middle part tube wall outer wall of stopper, these spacing grooves are uniformly distributed along stopper tube wall circumference. The stop means of the present invention both can be implemented in the freely axial and circumference adjustment of stopper in installation process, can be implemented in again the axial and circumferential of stopper in use and firmly fixes.
Description
Technical field
The present invention relates to the stop means in a kind of oil exploration equipment field, particularly relate to a kind of for the stop means in the radial hole creating technology of high-pressure hydraulic injection.
Background technology
The radial hole creating technology of high-pressure hydraulic injection originates from hydrojet and rinses oil pipe drill rod, found that this kind of technology had good sand washing ability by increasing pressure afterwards, then by improving shower nozzle and relevant utility appliance, intensified pressure injection producing horizon position, develops into the oilfield stimulation technology of a kind of efficient economy gradually. In the radial hole creating technology of high-pressure hydraulic injection, it is necessary to first pipe string of windowing is lowered in deflecting pipe string and realizes windowing and then carrying out spraying operation. All carry out in down-hole due to relevant operation, generally by the application of stop means with accurately know window pipe string whether completely under in deflecting pipe string. The applying working condition of stop means in the radial pore-forming technique of high-pressure hydraulic injection is as follows:
1) in the installation process of kickover tool, it is necessary to the U shape groove of stopper is alignd with the outlet circumference of upstock. Thus, by gyrostat measure U shape groove direction just can learn the exporter of upstock to;
2), when stop means is installed on deflecting pipe string, it is necessary to the distance that strict limitation stopper exports to upstock, ensure that the instrument of windowing is when being seated on stopper, the end blade of instrument of windowing at the pressure set on the casing wall bored; If (stopper from upstock excessively away from, then blade cannot touch casing wall or contact force too little, cannot successfully bore and widen the view. If stopper from upstock excessively close to, then when casing wall encountered by blade, pressure is excessive, causes blade cut amount excessive, and blade breaks or motor is stuck does not turn. )
3) after putting into oil well under kickover tool string, under window before instrument, it is necessary to first measure the direction of upstock outlet. Now by under enter the direction that U shape groove on stopper measured by gyrostat, it is seen that the direction of upstock outlet. This to be ensured that stopper does not rotate in a circumferential direction;
4), after orientation is determined, just windowing task can be carried out by the instrument of windowing down.The instrument of windowing needs seat on stopper, ensures that blade is holed under the pressure set. This to be ensured that stopper can bear the pressure of instrument, not slide downward.
5) carry out spraying operation after having windowed, after completing, re-start new bearing adjustment. Repeat afterwards to survey direction, windowing task and spraying operation, until completing operation.
As shown in Figure 5, it is the structural representation of stopper of existing stop means. Existing stop means, by outputing circumferential recess on the stopper, is then screwed into the circumferential recess holding out against screw and embed on stopper and carries out the fixing of stopper by the threaded hole on spacing collar. There is following shortcoming in this kind of method: the first, and stopper is thin-walled part, and therefore the groove on it is more shallow, holds out against screw thread and embeds in groove, and the axle pressure that can bear is limited. And whole tool string of windowing is when sitting on the stopper, sits pressure often beyond 1 ton of weight, cause stopper to hold and can't stand weight and glide, cause spacing failure; 2nd, the axis of stopper rotates and only limits by holding out against the extrusion friction power of screw, strength is less, when instrument enters the U shape groove on stopper along the tapered cut on stopper, stopper can be caused collision, or because windowing instrument rocking in stopper, cause holding out against screw and loosening, thus cause rotating in a circumferential direction of stopper, cause the change in circumference orientation. Above 2 all can be caused the spacing failure of stopper.
It thus is seen that above-mentioned existing stop means in structure and uses, it is clear that still have inconvenience and defect, and be urgently further improved. The present inventor is based on being engaged in practical experience and the expertise that this type of product design manufacture is enriched for many years, and actively research and innovation in addition, to founding the stop means of a kind of novel texture, it is possible to improve general existing stop means so that it is have more practicality. Through constantly research, design, and after examination repeatedly is made sample and improved, finally create the present invention having practical value.
Summary of the invention
The main purpose of the present invention is, overcome the defect that existing stop means exists, and the stop means of a kind of novel texture is provided, technical problem to be solved be make its can realize stopper freely axially and circumference adjustment and firmly fix, thus be more suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions. A kind of stop means proposed according to the present invention, it comprises spacing collar and stopper, and described spacing collar is tubulose, and within it wall is provided with internal thread; Described stopper is tubulose, and its bottom outer wall is provided with outside screw, mates mutually with the internal thread of spacing collar.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid stop means, wherein said stop means, in the two ends of wherein said spacing collar, hole is set to tubing thread; The internal thread of spacing collar is positioned at outside the stage casing through hole of spacing collar; The middle part tube wall of described spacing collar is provided with many group spacing hole groups, and this spacing hole group is made up of multiple spacing hole being distributed in tube wall circumference. The externally threaded external diameter of described stopper is greater than the external diameter at other positions of stopper; The top of stopper is skewed tapered cut, should offer U-type groove on the lowest part tube wall of tapered cut; Tube wall inside under the tapered cut of described stopper is provided with undergauge;Offering multiple spacing groove to tube wall inner recess on the middle part tube wall outer wall of described stopper, these spacing grooves are uniformly distributed along stopper tube wall circumference, and each spacing groove is rectangle, and its length direction is identical with the axis direction of stopper; The central angle that two adjacent spacing grooves are formed is 12 ��.
By technique scheme, stop means of the present invention at least has following advantage:
1) when mounted, it is possible to adjust the distance between stop means and upstock mouth flexibly;
2) when mounted, it is possible to adjust stop means U-type groove and the orientation of upstock mouth flexibly so that it is alignment;
In the application, it is possible to firmly fix stopper, 3) make stopper not issue at the pressure of pipe string weight and give birth to cunning;
In the application, it is possible to firmly fix stopper, 4) stopper is not rotated in a circumferential direction under external force.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand the technique means of the present invention, and can be implemented according to the content of specification sheets, below with the better embodiment of the present invention and coordinate accompanying drawing to be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stop means of the present invention.
Fig. 2 is the structural representation of the stopper in the stop means of the present invention.
Fig. 3 be in Fig. 1 A-A to sectional view.
Fig. 4 be in Fig. 1 B-B to sectional view.
Fig. 5 is the schematic diagram of stopper of the prior art.
Embodiment
Technique means and effect that predetermined goal of the invention is taked is reached for further setting forth the present invention, below in conjunction with accompanying drawing and better embodiment, to its embodiment of stop means proposed according to the present invention, structure, feature and effect thereof, it is described in detail as follows.
Referring to shown in Fig. 1 to Fig. 4, Fig. 1 is the structural representation of the stop means of the embodiment of the present invention, the structural representation of Fig. 2 stopper, Fig. 3 be in Fig. 1 A-A to sectional view, Fig. 4 be in Fig. 1 B-B to sectional view. Being the object of accurate description in each figure above-mentioned, in figure, left side is defined as the end, and right side is defined as.
The stop means of the better embodiment of the present invention, it mainly comprises spacing collar 1 and stopper 2, and described spacing collar 1 is for fixing stopper 2, and is connected other subsurface tool or equipment by spacing collar. Described spacing collar 1 and stopper 2 are all tubular structure, and in use, stopper 2 inserts in spacing collar 1, and is fixed with spacing collar 1.
As shown in Figure 3, showing the internal structure of spacing collar 1, the two ends bore design of this spacing collar 1 becomes tubing thread structure, for connecting other instrument or equipment. Through-hole wall between the tubing thread at these spacing collar two ends is provided with internal thread, and through whole through hole, thus it is screwed into fixing for stopper. The middle part tube wall of described spacing collar 1 is provided with spacing hole group, and this spacing hole group is made up of multiple spacing hole 11 being distributed in tube wall circumference. Preferably, each spacing hole group is made up of 5 spacing holes. Multiple spacing hole group axially it is provided with, it is preferred that the quantity of spacing hole group is 4 along tube wall. Each spacing hole is threaded hole and runs through spacing collar wall, for being screwed into bolt.
As shown in Figure 2, Figure 3 and Figure 4, described stopper is tubulose, is provided with outside screw 21 at its bottom outer wall, arranges the stopper outer wall outwardly convex of outside screw 21, thus make externally threaded external diameter be greater than the external diameter at other other positions of stopper of stopper, namely outside screw is outwardly.This outside screw 21 mates mutually with the internal thread of spacing collar, such that it is able to be screwed in spacing collar by stopper. The top of described stopper 2 is skewed tapered cut, should offer U-type groove 23 on the lowest part tube wall of tapered cut. Tube wall inside under the tapered cut of described stopper is provided with undergauge 24. In the application, subsurface tool can carry out in U-type groove 23 under the guiding of tapered cut, can judge the orientation residing for instrument by this U-type groove 23, and the undergauge 24 of stopper inside, plays spacing effect. Offering multiple spacing groove 22 to tube wall inner recess on the middle part tube wall outer wall of stopper 2, these spacing grooves are uniformly distributed along stopper tube wall circumference, and each spacing groove is rectangle, and its length direction is identical with the axis direction of stopper. The quantity of spacing groove is 30, and the central angle that two often adjacent spacing grooves are formed is 12 ��, and therefore, the angular error scope between stopper and upstock outlet is 0-6 ��.
Preferably, the thread pitch that stopper coordinates with spacing collar is 4, and therefore distance error scope between stopper and upstock is 0-2mm.
This stop means in use, need to install stopper, distance as required, stopper by being threaded into the certain length of spacing collar after can stop being screwed into. Now finding the outlet of upstock, fine setting stopper makes the U-type groove 23 of stopper be directed at upstock outlet, then loads puller bolt from spacing collar, and fine setting stopper makes in the spacing groove 22 that puller bolt sinks to stopper axis.
The stop means of the present invention both can be implemented in the freely axial and circumference adjustment of stopper in installation process, can be implemented in again the axial and circumferential of stopper in use and firmly fixes. Solve existing stopper and landing and the problem of circumference displacement occur, ensure that spacing reliability.
The above, it it is only the better embodiment of the present invention, not the present invention is done any restriction in form, although the present invention discloses as above with better embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or it is modified to the equivalent embodiment of equivalent variations, in every case it is the content not departing from technical solution of the present invention, the any simple modification above embodiment done according to the technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. a stop means, it is characterised in that: it comprises spacing collar and stopper,
Described spacing collar is tubulose, and within it wall is provided with internal thread;
Described stopper is tubulose, and its bottom outer wall is provided with outside screw, mates mutually with the internal thread of spacing collar;
The middle part tube wall of described spacing collar is provided with spacing hole group, and this spacing hole group is made up of multiple spacing hole being distributed in tube wall circumference;
Offering multiple spacing groove to tube wall inner recess on the middle part tube wall outer wall of described stopper, these spacing grooves are uniformly distributed along stopper tube wall circumference, and each spacing groove is rectangle, and its length direction is identical with the axis direction of stopper.
2. stop means according to claim 1, it is characterised in that, in the two ends of wherein said spacing collar, hole is set to tubing thread.
3. stop means according to claim 2, it is characterised in that, the internal thread of spacing collar is positioned at spacing collar intermediate throughholes place.
4. stop means according to claim 1, it is characterised in that, described spacing hole group is many groups.
5. stop means according to claim 1, it is characterised in that, the top of described stopper is skewed tapered cut, should offer U-type groove on the lowest part tube wall of tapered cut.
6. stop means according to claim 1, it is characterised in that, the central angle that the spacing groove of described adjacent two is formed is 12 ��.
7. stop means according to claim 1, it is characterised in that, the externally threaded external diameter of described stopper is greater than the external diameter at other positions of stopper.
8. stop means according to claim 5, it is characterised in that, the tube wall inside under the tapered cut of described stopper is provided with undergauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449810.1A CN103184858B (en) | 2011-12-29 | 2011-12-29 | Stop means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449810.1A CN103184858B (en) | 2011-12-29 | 2011-12-29 | Stop means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184858A CN103184858A (en) | 2013-07-03 |
| CN103184858B true CN103184858B (en) | 2016-06-08 |
Family
ID=48676274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110449810.1A Active CN103184858B (en) | 2011-12-29 | 2011-12-29 | Stop means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184858B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029654A (en) * | 1990-07-16 | 1991-07-09 | Murray Wilson | Bendable drilling sub |
| US6554083B1 (en) * | 2001-12-05 | 2003-04-29 | Scott Kerstetter | Adjustable bent housing sub for a mud motor |
| CN2851501Y (en) * | 2005-11-18 | 2006-12-27 | 新疆石油管理局钻井工艺研究院 | Positioning device for whipstock |
| CN2866787Y (en) * | 2005-11-10 | 2007-02-07 | 新疆石油管理局钻井工艺研究院 | Whipstock spring block type positioning device |
| CN102155202A (en) * | 2011-04-19 | 2011-08-17 | 中国石油化工集团公司 | Quick connecting and fixing device for orientated perforator |
| CN102278076A (en) * | 2011-07-11 | 2011-12-14 | 安东石油技术（集团）有限公司 | Limiting pup joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055764U (en) * | 1989-06-12 | 1990-04-11 | 成都国营锦江电机厂 | Material feeding bracket for processing pipes and rods |
-
2011
- 2011-12-29 CN CN201110449810.1A patent/CN103184858B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029654A (en) * | 1990-07-16 | 1991-07-09 | Murray Wilson | Bendable drilling sub |
| US6554083B1 (en) * | 2001-12-05 | 2003-04-29 | Scott Kerstetter | Adjustable bent housing sub for a mud motor |
| CN2866787Y (en) * | 2005-11-10 | 2007-02-07 | 新疆石油管理局钻井工艺研究院 | Whipstock spring block type positioning device |
| CN2851501Y (en) * | 2005-11-18 | 2006-12-27 | 新疆石油管理局钻井工艺研究院 | Positioning device for whipstock |
| CN102155202A (en) * | 2011-04-19 | 2011-08-17 | 中国石油化工集团公司 | Quick connecting and fixing device for orientated perforator |
| CN102278076A (en) * | 2011-07-11 | 2011-12-14 | 安东石油技术（集团）有限公司 | Limiting pup joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184858A (en) | 2013-07-03 |
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