CN204782823U - Novel manage sliding sleeve formula on -rotating centralizer in succession - Google Patents
Novel manage sliding sleeve formula on -rotating centralizer in succession Download PDFInfo
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- CN204782823U CN204782823U CN201520380179.8U CN201520380179U CN204782823U CN 204782823 U CN204782823 U CN 204782823U CN 201520380179 U CN201520380179 U CN 201520380179U CN 204782823 U CN204782823 U CN 204782823U
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- sliding sleeve
- mandrel
- rotating
- centralizer
- lower contact
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Abstract
The utility model provides a novel manage sliding sleeve formula on -rotating centralizer in succession, include the dabber with and the sliding sleeve of rao the dabber free rotation of the last lower clutch that is equipped with of both ends, middle part suit, sliding sleeve periphery equipartition has the arris wing of a plurality of radial extensions. The utility model discloses the accessible changes the sliding sleeve to be realized different oil, sheathed tube and rights, makes the centralizer structure simpler, general in various oil, sleeve pipe, compared with the prior art, the utility model has the advantages of it is following: 1. The realization is to the biggest control of operation, 2. Vibration when the on -rotating sliding sleeve has reduced the cutting operation, 3. On -rotating sliding sleeve furthest has reduced the sheathed tube wearing and tearing, 4. Easily assembly and dismantlement, 5. Be applicable to different oil, sleeve pipe through changing the sliding sleeve, 6. Long service life.
Description
Technical field
The utility model relates to oil exploitation downhole tool field, particularly relates to the non-rotating centralizer of a kind of new type of continuous pipe sleeve type.
Background technology
Although China is energy big country, petroleum reserves is fewer; In recent years, along with the passing of oil exploitation time, oil well is aging, and output day by day reduces, and oil production technology in the past can not meet actual duty requirements.In order to improve oil recovery factor, usually needing to use continuous oil pipe device to carry out underground work, improving oil reservoir permeability, improve oil recovery factor.Wherein centralizer is one of basic downhole tool, and realize maximum control to instrument by centralizer, centralizing tool, is convenient to job execution, and stability when guaranteeing operation and efficiency.Current rigid centralizer mostly is integral type, and one versatility is not strong, can not be common to the tubing and casing of different size; They are two years old, some downhole tools need to rotate construction and (such as use the major part of multi-string cutter to operate and all will use a centralizer directly worked above instrument, when particularly there are two or more eccentric tubing strings and must intermittently cut), now be connected to centralizer above downhole tool also rotate simultaneously thereupon and with the sleeve pipe generation Relative friction of outside, vibrations during operation can be caused, and accelerate sleeve pipe and the wearing and tearing of self.
Utility model content
In order to solve the above-mentioned defect of prior art, the utility model provides that a kind of structure is simple, reasonable in design, control is strong, long service life and the high non-rotating centralizer of new type of continuous pipe sleeve type of versatility.
The concrete technical scheme of the utility model is: the sliding sleeve that can rotate freely around mandrel comprising upper lower contact that mandrel and its two ends are provided with, middle part suit, described sliding sleeve periphery is evenly equipped with the rib wing that multiple radial direction extends.During use, lower contact connecting downhole throw (such as hydraulic cutter), downhole tool rotates Shi Dai moving mandrel and rotates thereupon, and sliding sleeve keeps static by the rib wing and outside casing-contact and do not rotate with mandrel, and namely adopting relative to mandrel is the structure of non-rotating sliding sleeve.
Such scheme can be improved to further:
Described mandrel is provided with upper limit step, and described lower contact is flexibly connected with mandrel and junction forms lower limit step, and after described sliding sleeve is sleeved on mandrel, two ends are spacing respectively by upper limit step, lower limit step.
Described sliding sleeve is different many groups of specification.
Described top connection and mandrel are integral type structure.
Install "O"-ring between described lower contact and mandrel, the end of described lower contact is also provided with "O"-ring.
Described mandrel and lower contact material are heat treatable alloy steel; The material of described sliding sleeve is mild steel
The utility model realizes the righting of different oil, sleeve pipe by changing sliding sleeve, make centralizer structure simpler, be common to various oil, sleeve pipe; Compared with prior art, the utility model has the following advantages:
1. realize the maximum control to operation;
2. vibration when non-rotating sliding sleeve reduces cutting operation;
3. non-rotating sliding sleeve decreases the wearing and tearing of sleeve pipe to greatest extent;
4. be easy to assembling and dismounting;
5. be applicable to different oil, sleeve pipe by changing sliding sleeve;
6. long service life.
Accompanying drawing explanation
Fig. 1 be the utility model a kind of be the structural representation of embodiment;
In figure: in figure: 1, mandrel; 2, sliding sleeve; 3, lower contact; 4, the first "O"-ring; 5, the second "O"-ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
See Fig. 1, the non-rotating centralizer of a kind of new type of continuous pipe sleeve type, mandrel 1 top is provided with and is connected dismountable lower contact 3 with the top connection of its one, lower removable; Mandrel is provided with upper limit step, lower contact 3 forms lower limit step with the junction of mandrel 1, after sliding sleeve 2 is sleeved on mandrel, two ends are spacing respectively by upper limit step, lower limit step, and sliding sleeve 2 can rotate freely around mandrel (with mandrel axis for center of rotation), sliding sleeve 2 periphery is evenly equipped with the rib wing that multiple radial direction extends, and can also provide maximized stability while that the rib wing of sliding sleeve making the contact area of itself and wall minimized.Sliding sleeve 2 is different many groups of specification, for changing according to actual conditions.Install the first "O"-ring 4 between lower contact 3 and mandrel 1 to keep sealing therebetween, the end of lower contact 3 is provided with the second "O"-ring 5, for keeping good sealing between the downhole tool of bottom.In order to ensure application life, mandrel 1 and lower contact 3 adopt best heat treatable alloy Steel material to make.The material of sliding sleeve 2 is mild steel, can reduce the wearing and tearing to sleeve pipe.
The non-rotating centralizer design of this sleeve type is used for supporting the use with multi-string cutter, lower contact 3 connects multi-string cutter, multi-string cutter rotates Shi Dai moving mandrel 1 and rotates thereupon under power (such as waterpower) effect, and sliding sleeve 2 keeps static by the rib wing and outside casing-contact and does not rotate with mandrel, due to the design of non-rotating sliding sleeve, vibration when it reduces on the one hand cutting operation, it two decreases sleeve pipe and the wearing and tearing of self to greatest extent; When sleeve pipe specification changes, by unloading lower contact 3, thus sliding sleeve 2 can be unloaded by mandrel 1 lower end, then changing the sliding sleeve being applicable to specification, finally lower contact 3 be installed and carry out spacing to sliding sleeve, just again can carry out job execution.
Advantage of the present utility model: 1. realize the maximum control to operation; 2. vibration when non-rotating sliding sleeve reduces cutting operation; 3. non-rotating sliding sleeve decreases the wearing and tearing of sleeve pipe to greatest extent; 4. be easy to assembling and dismounting; 5. be applicable to different oil, sleeve pipe by changing sliding sleeve; 6. long service life; This centralizer makes user obtain maximum control to instrument, and guarantees stability when cutting and efficiency.Sleeve type centralizer can make the running of cutter concentrate in well, thus reduces the impact load on blade and whole fishing string, and excellent when the non-rotating centralizer of sleeve type is used on small-sized casing cutter.
The above is preferred embodiment of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; likely to concrete size; or partial structurtes go out some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the non-rotating centralizer of new type of continuous pipe sleeve type, is characterized in that: the sliding sleeve that can rotate freely around mandrel comprising upper lower contact that mandrel and its two ends are provided with, middle part suit, described sliding sleeve periphery is evenly equipped with the rib wing that multiple radial direction extends.
2. the non-rotating centralizer of new type of continuous pipe sleeve type according to claim 1, it is characterized in that: described mandrel is provided with upper limit step, described lower contact is flexibly connected with mandrel and junction forms lower limit step, and after described sliding sleeve is sleeved on mandrel, two ends are spacing respectively by upper limit step, lower limit step.
3. the non-rotating centralizer of new type of continuous pipe sleeve type according to claim 1, is characterized in that: described sliding sleeve is different many groups of specification.
4. the non-rotating centralizer of new type of continuous pipe sleeve type according to claim 1, is characterized in that: described top connection and mandrel are integral type structure.
5. the non-rotating centralizer of new type of continuous pipe sleeve type according to claim 2, it is characterized in that: install "O"-ring between described lower contact and mandrel, the end of described lower contact is also provided with "O"-ring.
6., according to the arbitrary described non-rotating centralizer of new type of continuous pipe sleeve type of claim 1-5, it is characterized in that: described mandrel and lower contact material are heat treatable alloy steel; The material of described sliding sleeve is mild steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380179.8U CN204782823U (en) | 2015-06-05 | 2015-06-05 | Novel manage sliding sleeve formula on -rotating centralizer in succession |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380179.8U CN204782823U (en) | 2015-06-05 | 2015-06-05 | Novel manage sliding sleeve formula on -rotating centralizer in succession |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782823U true CN204782823U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520380179.8U Active CN204782823U (en) | 2015-06-05 | 2015-06-05 | Novel manage sliding sleeve formula on -rotating centralizer in succession |
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| CN (1) | CN204782823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577876A (en) * | 2019-01-15 | 2019-04-05 | 济源华新石油机械有限公司 | Interchangeable oblique wing stabilizer |
-
2015
- 2015-06-05 CN CN201520380179.8U patent/CN204782823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577876A (en) * | 2019-01-15 | 2019-04-05 | 济源华新石油机械有限公司 | Interchangeable oblique wing stabilizer |
| CN109577876B (en) * | 2019-01-15 | 2024-02-20 | 济源华新石油机械有限公司 | Stabilizer with changeable inclined wings |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |