CN105332661A - Flow guide type centralizer and petroleum instrument - Google Patents
Flow guide type centralizer and petroleum instrument Download PDFInfo
- Publication number
- CN105332661A CN105332661A CN201510661991.2A CN201510661991A CN105332661A CN 105332661 A CN105332661 A CN 105332661A CN 201510661991 A CN201510661991 A CN 201510661991A CN 105332661 A CN105332661 A CN 105332661A
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- baffle
- ring
- flow
- type centralizer
- external surface
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- 239000003208 petroleum Substances 0.000 title abstract 4
- 239000002184 metal Substances 0.000 claims abstract description 43
- 230000035939 shock Effects 0.000 claims description 47
- 238000003032 molecular docking Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 15
- 230000001788 irregular Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract 2
- 238000005553 drilling Methods 0.000 description 29
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention provides a flow guide type centralizer and a petroleum instrument using the same. The flow guide type centralizer comprises a first flow guide body and a second flow guide body which are in butt joint with each other. Flow guide grooves peripherally arrayed are formed in the outer surface of each of the first flow guide body and the second flow guide body. An annular embedding groove is formed in the butt joint position of the first flow guide body and the second flow guide body. A damping ring is embedded into the embedding groove, and the thickness of the damping ring is smaller than the depth of the embedding groove. Metal damping blocks peripherally arrayed are arranged on the damping ring. A limit ring sleeves the periphery of the damping ring. The sum of the thickness of the damping ring and the thickness of the limit ring is larger than or equal to the depth of the embedding groove. Limit holes in one-to-one correspondence to the metal damping blocks are formed in the limit ring. The metal damping blocks extends outwardly from the limit holes and are higher than the outer surface of the limit ring. The flow guide type centralizer is long in service life and capable of preventing the petroleum instrument from generating irregular shaking when the petroleum instrument working in a drill pipe is impacted by mud.
Description
Technical field
The present invention relates to oil Instrument Design technical field, more specifically, relate to a kind of flow-guiding type centralizer and oil instrument.
Background technology
In oil drilling process, along with going deep into gradually of drilling equipment drilling rod, detection data can be transferred to ground, to realize the subsequent treatment of ground installation to detection data by oil instrument (such as inclinometer) successively that arrange in drilling rod bar chamber.Along with the increase gradually of drilling depth, the position of oil instrument is more and more darker.We know, drilling environment is relatively more severe, and larger to the infringement of oil instrument.Therefore the damage phenomenon of oil instrument happens occasionally, corresponding, also often occurs the maintenance of oil instrument or change.
Usually, oil instrument is placed on the pedestal in drilling rod bar chamber, and is made up of multiple interconnective module (such as data acquisition module, battery module, fishing joint etc.), and two adjacent modules are connected by centralizer.At present, oil instrument just needs to carry brill gug once be damaged, that is, successively salvaged by drilling rod one, till a joint drilling rod at oil instrument place is salvaged, is then implemented to change or maintenance by the oil instrument damaged.Oil instrument is implemented to change or reinstall in corresponding feeler lever after maintenance, finally connects and often saves drilling rod to be transferred in drilling well successively by oil instrument.Salvaging or lifting in the process of oil instrument, the bar chamber of oil instrument along drilling rod under the drive of rope is moved, moving process PetroChina Company Limited. instrument can swing and then can clash into drilling rod bar cavity wall in drilling rod bar chamber, and oil instrument can be caused time serious to occur to clash into damage.For this reason, the centralizer of oil instrument has played the function stablizing whole oil instrument.Existing centralizer is provided with block rubber, clashes into drilling rod bar cavity wall by the contact between block rubber and drilling rod bar cavity wall to avoid oil instrument.
Oil instrument is subject to mud and impacts when working in drilling rod, irregular due to the flowing of mud, can produce uneven impact force, thus cause centralizer to produce erratic rocking to centralizer.Simultaneously, block rubber on centralizer is in the process of being washed away by mud, its diameter can constantly reduce, cause centralizer and drilling rod bar cavity wall gap increasing, make the righting effect of centralizer worse and worse, What is more can be increased in concuss condition under the risk that is badly shaken of a whole set of oil instrument, make current centralizer there is life-span shorter problem.
Summary of the invention
On the one hand, the invention provides a kind of flow-guiding type centralizer, to solve the irregular problem of rocking of current centralizer due to the abnormal flow movable property life of mud; Righting effect is worse and worse and the life-span caused short problem under the washing away of mud for the block rubber simultaneously solving centralizer.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Flow-guiding type centralizer, comprises the first baffle and second baffle of docking; The external surface of the first baffle and the second baffle is equipped with the guiding gutter of circumferential array;
The joint of the first baffle and the second baffle forms annular embedding slot; Set shock ring in described embedding slot, the thickness of described shock ring is less than the degree of depth of described embedding slot;
Described shock ring is provided with the metal snubber block of circumferential array;
The outer race of described shock ring establishes spacing ring, and the thickness sum of described shock ring and described spacing ring is more than or equal to the degree of depth of described embedding slot;
Described spacing ring has and described metal snubber block spacing hole one to one, described metal snubber block is stretched out by described spacing hole and exceeds the external surface of described spacing ring.
Preferably, the guide face of described guiding gutter outlet is concave curvatures.
Preferably, the central angle of described concave curvatures is 15 ° ~ 90 °.
Preferably, the number that the external surface of the first baffle has guiding gutter is 6 ~ 12, and the number that the external surface of the second baffle has guiding gutter is 6 ~ 12;
The number that the external surface of the first baffle has guiding gutter is identical with the number that the external surface of the second baffle has guiding gutter, when the first baffle docks with the second baffle, the axis coinciding of the first baffle and the second baffle, the guiding gutter of the first baffle is identical along the position of the second baffle axle center array with the guiding gutter of the second baffle along the position of the first baffle axle center array.
Further, the external surface of described shock ring has the blind hole of circumferential array, described metal snubber block is embedded in described blind hole.
Preferably, the shape of described blind hole cross section is circular or regular polygon.
Wherein, described metal snubber block comprises base portion, extension and segment portion;
The shape of described base portion cross section is identical with described blind hole shape of cross section, is embedded in described blind hole to described base portion interference fit; Described segment portion is stretched out by described spacing hole and exceeds the external surface of described spacing ring.
Preferably, the first baffle and the second baffle are docked by spiral shell button.
Preferably, described shock ring is made up of silica gel material; Or comprise elastomeric element in described shock ring.
On the other hand, the present invention also provides a kind of oil instrument, and described oil instrument has the flow-guiding type centralizer described in above-mentioned any one.
From above technical scheme, the flow-guiding type centralizer that the embodiment of the present invention provides adopts the first baffle and the docking of the second baffle, annular embedding slot is formed at the joint of the first baffle and the second baffle, shock ring is set in embedding slot, shock ring arranges the metal snubber block of circumferential array, establish spacing ring in the outer race of shock ring, spacing ring has and metal snubber block spacing hole one to one, metal snubber block is stretched out by spacing hole and exceeds the external surface of spacing ring.The guiding gutter of circumferential array is set at the external surface of the first baffle and the second baffle simultaneously.The guiding gutter that first baffle and the second baffle external surface are arranged can bring the impact force of centralizer by mean allocation mud, and what solve that existing centralizer produces due to the impact of mud irregularly rocks, the reliability of raising oil instrument work.Meanwhile, it is inner that the shock ring of the embodiment of the present invention is embedded in metal spacing ring, mud wash away less than, the chance that shock ring is corroded reduces greatly.The part that metal snubber block only exposes spacing ring contacts with drilling well drilling bar wall, and when metal snubber block is squeezed or collides, shock ring absorbs the energy that the vibrations of metal snubber block produce, with block rubber in background technology under the washing away of mud righting effect worse and worse compared with, the application can extend the application life of centralizer.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the flow-guiding type centralizer shown according to a preferred embodiment;
Fig. 2 be in Fig. 1 A-A to the sectional view in cross section;
Fig. 3 is the structural representation of the first baffle shown according to a preferred embodiment;
Fig. 4 be in Fig. 3 B-B to the sectional view in cross section;
Fig. 5 is the structural representation of the second baffle shown according to a preferred embodiment;
Fig. 6 is the structural representation of the second baffle shown according to another preferred embodiment;
Fig. 7 is the structural representation of the shock ring shown according to a preferred embodiment;
Fig. 8 be in Fig. 7 C-C to the sectional view in cross section;
Fig. 9 is the structural representation of the snubber block shown according to a preferred embodiment;
Figure 10 is the structural representation of the spacing ring according to a preferred embodiment.
Detailed description of the invention
Embodiments provide a kind of flow-guiding type centralizer, the block rubber solved on current centralizer be corroded comparatively serious, rub between block rubber and drilling rod bar cavity wall the life-span shorter problem caused more greatly, can alleviate larger salvaging oil instrument or the impact of the work of lifting of rubbing between block rubber and drilling rod bar cavity wall simultaneously.
Technical scheme in the embodiment of the present invention is understood better in order to make those skilled in the art person, and enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage become apparent more, below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is described in further detail.
Fig. 1 and Fig. 2 shows the structure of the flow-guiding type centralizer that the present invention provides according to a preferred embodiment.As depicted in figs. 1 and 2, the flow-guiding type centralizer that the embodiment of the present invention provides comprises the first baffle 1, second baffle 2, shock ring 3, metal snubber block 4 and spacing ring 5.
First baffle 1 and the second baffle 2 dock.Fig. 3 is the structural representation of the first baffle shown according to a preferred embodiment; Fig. 4 be in Fig. 3 B-B to the sectional view in cross section.As shown in Figure 3 and Figure 4, be defined as the first free end 10 in the first baffle 1 away from that one end of the second baffle 2, that one end be fixedly connected with the second baffle 2 is the first fixed end 11.First fixed end 11 is provided with the annular screw socket 12 extended towards the second baffle 2, and the external diameter of annular screw socket 12 is less than the external diameter of the first fixed end 11, and annular screw socket 12 is provided with internal thread.
Fig. 5 is the structural representation of the second baffle shown according to a preferred embodiment, as shown in Figure 5, be defined as the second free end 20 away from that one end of the first baffle 1 in second baffle 2, that one end be fixedly connected with the first baffle 1 is the second fixed end 21.The external diameter of the second fixed end 21 is identical with the external diameter of the first fixed end 11 of the first baffle 1; The external diameter of the second free end 20 is identical with the external diameter of the second free end 20 of the first baffle 1.First free end 10 and the second free end 20 such as, for being connected two adjacent modules of oil instrument, data acquisition module, battery module, fishing joint etc.
Second fixed end 21 is provided with the stepped spiral shell button 22 extended towards the first baffle 1.Stepped spiral shell button 22 comprises two-stage end difference, and the external surface of the end difference 220 that diameter is less arranges external screw thread (not shown).The diameter of the end difference 221 that diameter is larger is identical with the external diameter of annular screw socket 12 in the first baffle 1.Second baffle 2 is threaded by the annular screw socket 12 of the external screw thread on stepped spiral shell button 22 with the first baffle 1.After the second baffle 2 is connected with the first baffle 1, in the end face of the end difference 220 that diameter is less and the first baffle 1, the bottom surface of annular screw socket 12 is affixed, and in the end face of the end difference 221 that diameter is larger and the first baffle 1, the circular top end face 120 of annular screw socket 12 is affixed.
External diameter due to annular screw socket 12 is less than the external diameter of the first fixed end 11, the diameter of the end difference that diameter is larger is identical with the external diameter of annular screw socket 12 in the first baffle 1, therefore, after the first baffle 1 and the docking of the second baffle 2, the periphery of annular screw socket 12 and stepped spiral shell button 22 forms annular embedding slot.
Further, after the first baffle 1 and the docking of the second baffle 2, be the sealing after ensureing docking between the two, the end difference less at diameter has annular seal groove, and annular seal groove is adjacent with the larger end difference of diameter.
Fig. 6 is the structural representation of the second baffle shown according to another preferred embodiment.As shown in Figure 6, the second fixed end 21 of the second baffle adopts directly towards the extension spiral shell button 22 ' of the first baffle 1, extends on spiral shell button 22 ' and arranges external screw thread, extends spiral shell button 22 ' and directly screws in annular screw socket 12.Second baffle of this structure, after docking with the first baffle 1, the periphery of annular screw socket 12 forms annular embedding slot.
It should be noted that; above-mentioned first baffle 1 and the second baffle 2 are by annular screw socket 12 and stepped spiral shell button 22 or to extend the syndeton that spiral shell button 22 ' carries out being threaded be exemplary, everyly the first baffle 1 and the second baffle 2 can be made to dock and the syndeton that can form annular embedding slot all falls into protection scope of the present invention.
It should be noted that, the first baffle in the application and the second baffle are not work simultaneously.Mud impacts from top to bottom to centralizer, and the first baffle being in centralizer the first half is subject to mud and washes away, and second baffle of the latter half is subject to mud washes away less, and now the first baffle plays the effect of righting.When the first half first baffle can not work by mud erosion failure, centralizer is exchanged use up and down, and now the second baffle plays the effect of water conservancy diversion.Because the first baffle and the second baffle work one by one, therefore compared to existing centralizer, its life-span at least doubles.
Shock ring 3 is embedded in the annular embedding slot of the first baffle 1 and the second baffle 2 docking formation, and the thickness of shock ring is less than the degree of depth of annular embedding slot.Shock ring arranges the metal snubber block 4 of circumferential array.The outer race of shock ring establishes spacing ring 5, and the thickness sum of shock ring and spacing ring 5 is more than or equal to the degree of depth of embedding slot.As the preferred embodiment in each embodiment, shock ring is identical with the degree of depth of embedding slot with the thickness of spacing ring 5, and namely the external diameter of spacing ring 5, the first fixed end 11 external diameter are identical with the external diameter of the second fixed end 21.In the application, shock ring 3 can make flexible damping ring by silica gel material, also can adopt and arrange elastomeric element in shock ring inside, as spring etc., forms elastic shock attenuation ring.The present invention carries out example explanation with the structure of flexible damping ring.It should be noted that, shock ring 3 adopts silica gel material to prepare or inside arranges elastomeric element just preferred version wherein, everyly shock ring can be made to possess flexible or flexible production program all fall into protection scope of the present invention.
Fig. 7 is the structural representation of the shock ring shown according to a preferred embodiment; Fig. 8 be in Fig. 7 C-C to the sectional view in cross section.As shown in Figure 7 and Figure 8, the external surface of shock ring has the blind hole 7 of circumferential array, this blind hole 7 forms shock-absorbing groove, the energy that Absorbable rod vibrations produce.Metal snubber block 4 is embedded in blind hole 7.Wherein, the shape of blind hole 7 cross section is circular or regular polygon.Fig. 9 is the structural representation of the metal snubber block according to a preferred embodiment.As shown in Figure 9, metal snubber block 4 comprises base portion 40, extension 41 and segment portion 42.The shape of base portion 40 cross section is identical with blind hole shape of cross section, and base portion 40 is embedded in blind hole.Segment portion 42 is stretched out by spacing hole and exceeds the external surface of spacing ring 5.
As the most preferred embodiment in each embodiment, the blind hole in the application, shock ring arranged is for circular, the base portion 40 of metal snubber block 4 is circular, the above-mentioned metal snubber block 4 that is arranged on is when being squeezed or colliding, the energy that shock ring and the equal Absorbable rod vibrations of blind hole produce, simultaneously because blind hole and base portion are circle, therefore metal snubber block 4 also can realize rotating in blind hole, and then reduces the friction between metal snubber block 4 and drilling rod inwall.
In the application, shock ring 3 can cushion collision between centralizer and drilling rod bar chamber and impact, better can protect centralizer, reduces the jerk that oil instrument is subject to.
Figure 10 is the structural representation of the spacing ring according to a preferred embodiment.As shown in Figure 10, spacing ring 5 has and metal snubber block 4 spacing hole 8 one to one, metal snubber block 4 is stretched out by spacing hole 8 and exceeds the external surface of spacing ring 5.Metal snubber block 4 is placed between flexible damping ring 3 and metal snubber block 4, when metal snubber block 4 is squeezed or collides, metal snubber block 4 moves along centralizer radial direction to flexible damping ring 3, flexible damping ring 3 absorbs metal snubber block 4 and shakes the energy produced, thus avoids oil instrument to be given a shock.
Flexible damping ring 3 and spacing ring 5 are embedded in annular embedding slot, when the first baffle 1 and the second baffle 2 dock, the first baffle 1 and the second baffle 2 make flexible damping ring 3 and spacing ring 5 be embedded at firmly in annular embedding slot by regulating annular embedding slot between the two.Preferably, in the embodiment of the present invention, the first baffle 1, second baffle 2, spacing ring 5 are made by metal material.
The external surface of the first baffle 1 and the second baffle 2 is equipped with the guiding gutter 6 of circumferential array.In the present embodiment, the number that the external surface of the first baffle 1 has guiding gutter 6 is identical with the number that the external surface of the second baffle 2 has guiding gutter 6, when the first baffle 1 docks with the second baffle 2, the axis coinciding of the first baffle 1 and the second baffle 2, the guiding gutter 6 of the first baffle 1 is identical along the position of the second baffle 2 axle center array with the guiding gutter 6 of the second baffle 2 along the position of the first baffle 1 axle center array.Preferably, at the piston ring land of longitudinal external surface circumferential array 6 ~ 12 equal portions of (namely along the direction of mud flowing) of the first baffle 1 to form guiding gutter, at the piston ring land of longitudinal external surface circumferential array 6 ~ 12 equal portions of (namely along the direction of mud flowing) of the second baffle 2 to form guiding gutter.
Boring pricker is a closed environment during a few km in underground, when oil instrument from borehole wall more close to the pressure of mud flowing larger, thus generation thrust and centripetal force.Centralizer in the application arranges the guiding gutter 6 of circumferential uniform array respectively on the first baffle 1 and the second baffle 2, during drilling well, mud is along the guiding gutter flowing between adjacent piston ring land and by guiding gutter water conservancy diversion, thus mean allocation mud brings the impact force of oil instrument, reduce the irregular flowing of mud and produce uneven impact force.Use the vibrations of the oil instrument of this centralizer less, thus extend the application life of oil instrument.
As known from the above, the flow-guiding type centralizer that the embodiment of the present invention provides implements improvement to the centralizer used in background technology, centralizer adopts the first baffle 1 and the second baffle 2 to dock, annular embedding slot is formed at the joint of the first baffle 1 and the second baffle 2, shock ring 3 is set in embedding slot, shock ring arranges the metal snubber block 4 of circumferential array, spacing ring 5 is established in the outer race of shock ring, spacing ring 5 has and metal snubber block 4 spacing hole one to one, metal snubber block 4 is stretched out by spacing hole and exceeds the external surface of spacing ring 5.The guiding gutter 6 of circumferential array is set at the external surface of the first baffle 1 and the second baffle 2 simultaneously.The guiding gutter 6 that first baffle 1 and the second baffle 2 external surface are arranged can bring the impact force of centralizer by mean allocation mud, and what solve that existing centralizer produces due to the impact of mud irregularly rocks, the reliability of raising oil instrument work.Meanwhile, it is inner that the shock ring 3 of the embodiment of the present invention is embedded in metal spacing ring 5, mud wash away less than, the chance that shock ring 3 is corroded reduces greatly.The part that metal snubber block only exposes spacing ring contacts with drilling well drilling bar wall, and when metal snubber block is squeezed or collides, shock ring 3 absorbs the energy that the vibrations of metal snubber block produce, with block rubber in background technology under the washing away of mud righting effect worse and worse compared with, the application can extend the application life of centralizer.
As the preferred embodiment in each embodiment, the scope of the central angle of the guide face that guiding gutter 6 exports is 15 ° ~ 90 °.
Based on the flow-guiding type centralizer that the embodiment of the present invention provides, the embodiment of the present invention also provides a kind of oil instrument, and described oil instrument has the flow-guiding type centralizer in the embodiment of the present invention described in any one.
It should be noted that, the beneficial effect of the oil instrument that the embodiment of the present invention provides is brought by flow-guiding type centralizer, and therefore, corresponding effect describes the description that please refer to the above-mentioned appropriate section of the embodiment of the present invention, and this does not repeat.In addition, the flow-guiding type centralizer that the embodiment of the present invention provides can also be applied in the instrument in coal drilling process under drilling well, is not limited to oil instrument.
Each embodiment in this manual all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. flow-guiding type centralizer, is characterized in that, comprises the first baffle and second baffle of docking; The external surface of the first baffle and the second baffle is equipped with the guiding gutter of circumferential array;
The joint of the first baffle and the second baffle forms annular embedding slot; Set shock ring in described embedding slot, the thickness of described shock ring is less than the degree of depth of described embedding slot;
Described shock ring is provided with the metal snubber block of circumferential array;
The outer race of described shock ring establishes spacing ring, and the thickness sum of described shock ring and described spacing ring is more than or equal to the degree of depth of described embedding slot;
Described spacing ring has and described metal snubber block spacing hole one to one, described metal snubber block is stretched out by described spacing hole and exceeds the external surface of described spacing ring.
2. flow-guiding type centralizer according to claim 1, is characterized in that, the guide face of described guiding gutter outlet is concave curvatures.
3. flow-guiding type centralizer according to claim 2, is characterized in that, the central angle of described concave curvatures is 15 ° ~ 90 °.
4. flow-guiding type centralizer according to claim 2, is characterized in that, the number that the external surface of the first baffle has guiding gutter is 6 ~ 12, and the number that the external surface of the second baffle has guiding gutter is 6 ~ 12;
The number that the external surface of the first baffle has guiding gutter is identical with the number that the external surface of the second baffle has guiding gutter, when the first baffle docks with the second baffle, the axis coinciding of the first baffle and the second baffle, the guiding gutter of the first baffle is identical along the position of the second baffle axle center array with the guiding gutter of the second baffle along the position of the first baffle axle center array.
5., according to described flow-guiding type centralizer arbitrary in Claims 1-4, it is characterized in that, the external surface of described shock ring has the blind hole of circumferential array, described metal snubber block is embedded in described blind hole.
6. flow-guiding type centralizer according to claim 5, is characterized in that, the shape of described blind hole cross section is circular or regular polygon.
7. flow-guiding type centralizer according to claim 6, is characterized in that, described metal snubber block comprises base portion, extension and segment portion;
The shape of described base portion cross section is identical with described blind hole shape of cross section, is embedded in described blind hole to described base portion interference fit; Described segment portion is stretched out by described spacing hole and exceeds the external surface of described spacing ring.
8. flow-guiding type centralizer according to claim 1, is characterized in that, the first baffle and the second baffle are docked by spiral shell button.
9. flow-guiding type centralizer according to claim 1, is characterized in that, described shock ring is made up of silica gel material; Or
Elastomeric element is comprised in described shock ring.
10. oil instrument, is characterized in that, described oil instrument has the flow-guiding type centralizer in the claims 1-9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661991.2A CN105332661B (en) | 2015-10-14 | 2015-10-14 | Flow-guiding type centralizer and oil instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661991.2A CN105332661B (en) | 2015-10-14 | 2015-10-14 | Flow-guiding type centralizer and oil instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105332661A true CN105332661A (en) | 2016-02-17 |
| CN105332661B CN105332661B (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510661991.2A Expired - Fee Related CN105332661B (en) | 2015-10-14 | 2015-10-14 | Flow-guiding type centralizer and oil instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131104A (en) * | 2016-11-30 | 2018-06-08 | 北京海蓝石油技术开发有限公司 | A kind of flow-guiding type centralizer and a kind of drilling measuring equipment |
| CN112832704A (en) * | 2021-01-29 | 2021-05-25 | 成都维锐泰达能源技术有限公司 | Damping and centering device for pumping intelligent opening device, intelligent opening device and multi-stage fracturing intelligent control system |
| CN114016909A (en) * | 2021-09-30 | 2022-02-08 | 北京中煤矿山工程有限公司 | Drill bit centering device for constructing long-distance horizontal drilling |
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| CN2709639Y (en) * | 2004-07-07 | 2005-07-13 | 大庆石油管理局 | Split casing centralising apparatus |
| CN2731067Y (en) * | 2004-10-16 | 2005-10-05 | 于世强 | Ring shape dropping-proof centraliser |
| CN2895704Y (en) * | 2006-04-06 | 2007-05-02 | 中国海洋石油总公司 | Opening-closing type shock-damping centralizer |
| CN201351463Y (en) * | 2009-02-11 | 2009-11-25 | 成都恩承油气有限公司 | Integral drag-reduction casing centralizer |
| CN201866160U (en) * | 2010-12-03 | 2011-06-15 | 上海神开石油化工装备股份有限公司 | Radial shock absorber |
| CN203822192U (en) * | 2014-05-22 | 2014-09-10 | 东营宝世达油田装备研究所 | Buffering and centering device for screw drill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108131104A (en) * | 2016-11-30 | 2018-06-08 | 北京海蓝石油技术开发有限公司 | A kind of flow-guiding type centralizer and a kind of drilling measuring equipment |
| CN112832704A (en) * | 2021-01-29 | 2021-05-25 | 成都维锐泰达能源技术有限公司 | Damping and centering device for pumping intelligent opening device, intelligent opening device and multi-stage fracturing intelligent control system |
| CN114016909A (en) * | 2021-09-30 | 2022-02-08 | 北京中煤矿山工程有限公司 | Drill bit centering device for constructing long-distance horizontal drilling |
| CN114016909B (en) * | 2021-09-30 | 2023-12-01 | 北京中煤矿山工程有限公司 | Drill bit centering device for construction long-distance horizontal drilling |
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| CN105332661B (en) | 2017-11-17 |
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