CN208669229U - It can undergauge stabilizer - Google Patents
It can undergauge stabilizer Download PDFInfo
- Publication number
- CN208669229U CN208669229U CN201821081133.6U CN201821081133U CN208669229U CN 208669229 U CN208669229 U CN 208669229U CN 201821081133 U CN201821081133 U CN 201821081133U CN 208669229 U CN208669229 U CN 208669229U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- ontology
- stabilizer
- core sleeve
- sleeve
- 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 provides one kind can undergauge stabilizer, including ontology, balance set, mandrel and core sleeve are equipped in the ontology, the balance set is between mandrel and ontology, and be connected through a screw thread with the inner wall of ontology, the core sleeve, which covers, is additionally provided with limit sleeve between the outside of mandrel, the core sleeve and mandrel, the core sleeve is equipped with and cuts off, and the limit sleeve is fixedly connected with core sleeve by cutting off；Several mounting grooves is offered in the middle part of the ontology, stable block is equipped in the mounting groove, and the stabilization block is connect with mandrel by pivot pin, and the middle part of the stabilization block is equipped with triangular groove.It is described in the utility model can undergauge stabilizer can pass through and reduce the rapid unfreezing of diameter when lock of tool drilling occurs in drilling process for stabilizer.And when turn on pump recycles again after unfreezing, due to the sealing function of internal balance set, up and down without pressure difference, stabilizer will not open mandrel again, guarantee that drilling well is gone on smoothly.
Description
Technical field
The utility model belongs to drilling well stabilizer technical field, can undergauge stabilizer more particularly, to one kind.
Background technique
Stabilizer can play the role of increasing steady drop angle righting in drilling process, be essential work in drilling process
Tool.Currently, in domestic drilling process always using with hard stabilizer similar in bit size, be easy because of mud cake adherency, wellbore
Undergauge, formation collapse etc. cause stabilizer bit freezing, such accident treatment is difficult, for a long time, easily cause other undergrounds complexity
Accident occurs, to extend drilling period, reduces drilling well timeliness.
Summary of the invention
In view of this, the utility model be directed to one kind can undergauge stabilizer, to solve stabilizer in drilling process
The problem of lock of tool drilling easily occurs.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
One kind can undergauge stabilizer, including ontology is equipped with balance set, mandrel and core sleeve in the ontology, described
Balance set is connected through a screw thread between mandrel and ontology, and with the inner wall of ontology, and the core sleeve covers in the outer of mandrel
Side, and it is located at the lower end of mandrel, limit sleeve is additionally provided between the core sleeve and mandrel, the core sleeve is equipped with and cuts
Pin, the limit sleeve are fixedly connected with core sleeve by cutting off；
Several mounting grooves is offered in the middle part of the ontology, and stable block is equipped in the mounting groove, it is described
Stablize block to be flexibly connected with mandrel, the middle part of the stabilization block is equipped with triangular groove；
The lower end of the ontology is equipped with crossover sub, and the crossover sub is connected through a screw thread with ontology.
Further, the conical surface is equipped in the mounting groove, the lower surface of the stabilization block and the conical surface match
It closes.
Further, the conical surface is equipped with corner, and the corner is in the triangular groove.
Further, the first step matched with the mandrel is equipped in the crossover sub.
Further, the lower end of the mandrel is equipped with second step, and the limit sleeve and second step are clamped.
Further, the first several sealing rings is equipped on the inner and outer wall of the balance set.
Further, the second several sealing rings is equipped on the inner and outer wall of the core sleeve.
Further, the stabilization block is flexibly connected with mandrel by pivot pin.
Compared with the existing technology, it is described in the utility model can undergauge stabilizer have the advantage that
It is described in the utility model can undergauge stabilizer, when lock of tool drilling, Ke Yitong occur in drilling process for stabilizer
Cross the rapid unfreezing of diminution diameter.And when turn on pump recycles again after unfreezing, due to the sealing function of internal balance set, above and below mandrel
There is no pressure difference, stabilizer will not open again, guarantee that drilling well is gone on smoothly.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the structural schematic diagram before stabilizer undergauge described in the utility model embodiment；
Fig. 2 is the structural schematic diagram after stabilizer undergauge described in the utility model embodiment；
Fig. 3 is the enlarged drawing of A in Fig. 1 described in the utility model embodiment.
Description of symbols:
1, ontology；11, mounting groove；111, the conical surface；112, corner；2, balance set；21, the first sealing ring；3, mandrel；31,
Second step；4, core sleeve；41, it cuts off；42, the second sealing ring；5, limit sleeve；6, stablize block；61, triangular groove；7, conversion connects
Head；71, first step.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-3, one kind can undergauge stabilizer, it is characterised in that: be equipped with including ontology 1, in the ontology 1 flat
Weighing apparatus set 2, mandrel 3 and core sleeve 4, the balance set 2 pass through spiral shell between mandrel 3 and ontology 1, and with the inner wall of ontology 1
Line connection, outside of 4 sets of the core sleeve in mandrel 3, and be located at the lower end of mandrel 3, the core sleeve 4 and mandrel 3 it
Between be additionally provided with limit sleeve 5, the core sleeve 4, which is equipped with, cuts off 41, and the limit sleeve 5 and core sleeve 4 are by cutting off 41
It is fixedly connected；2 upper end of balance set is connect with 1 inner thread of ontology, and lower end is resisted against on the step inside ontology 1, institute
The core sleeve 4 stated is mounted on the inside of 1 lower part of ontology, and the upper end is resisted against on the step of 1 lower part of ontology, and lower part connects by conversion
First 7 is fixed.Limit sleeve 5 is mounted on the inside of mandrel 3 and core sleeve 4, covers on the step of 3 lower end of mandrel, and relies on 3 sets of mandrel
On to cut off 41 fixed.
The middle part of the ontology 1 offers several mounting grooves 11, and stable block 6 is equipped in the mounting groove 11,
The stabilization block 6 is flexibly connected with mandrel 3, and the middle part of the stabilization block 6 is equipped with triangular groove 61；The stabilization block 6 is logical
Three pieces or four pieces, and being arranged radially along ontology 1 is often set as needed；The triangular groove 61 is embedded in ontology 1
On corner 112, it can prevent from opening in lower brill, drilling process and meet card.
The lower end of the ontology 1 is equipped with crossover sub 7, and the crossover sub 7 is connected through a screw thread with ontology 1.
The conical surface 111 is equipped in the mounting groove 11, the lower surface of the stabilization block 6 and the conical surface 111 match
It closes.
The conical surface 111 is equipped with corner 112, and the corner 112 is in the triangular groove 61.
The first step 71 matched with the mandrel 3 is equipped in the crossover sub 7.It is cut when cutting off 41
Afterwards, mandrel 3 drives limit sleeve 5 to move down, until limit sleeve 5 stops on the first step 71 in lower part crossover sub 7
Downlink, the first step 71 play the role of controlling 3 stroke of mandrel with limit sleeve 5 together.
The lower end of the mandrel 3 is equipped with second step 31, and the limit sleeve 5 and second step 31 are clamped.Described
Second step 31 and 5 step of limit sleeve cooperate, so that mandrel 3 can drive limit sleeve 5 to cut off 41 downlinks together.
The first several sealing rings 21 is equipped on the inner and outer wall of the balance set 2.
The second several sealing rings 42 is equipped on 3 sets of mandrel of the inner and outer wall.First sealing ring
21 and second sealing ring 42 respectively inside and outside mandrel 3 formed sealing, prevent fluid inside and outside drilling tool from ganging up.
The stabilization block 6 is flexibly connected with mandrel 3 by pivot pin.
It is described can 1 upper end of undergauge stabilizer ontology connect with drill collar or drill rod thread, lower end connection screw thread connection one conversion
The lower thread of connector 7, crossover sub 7 connects bottomhole assembly.In drilling process, when can undergauge stabilizer encounter bit freezing
When, drilling tool is above mentioned immediately, and due to stabilizer bit freezing, during drilling tool above mentions, 3 opposing body 1 of stabilizer mandrel is to moving down
It is dynamic, it when reaching design requirement, is mounted in core sleeve 4 and limit sleeve 5 and cuts off 41 cuttings, so that mandrel 3 drives limit sleeve 5
It moves down, until limit sleeve 5 stops downlink in 7 interior step of lower part crossover sub.Stable at this time piece 6 along ontology 1
On the conical surface 111 move down, to shrink stable block 6, be resisted against on 3 outer wall of mandrel until stablizing 6 inclined-plane of block, it is stable at this time
The integral diameter of device reduces, and achievees the purpose that unfreezing.If turn on pump recycles at this time, due to the sealing function of internal balance set 2, mandrel
About 3 without pressure difference, and stabilizer will not open again, so that drilling well be made to go on smoothly.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. can undergauge stabilizer, it is characterised in that: including ontology (1), be equipped with balance set (2), mandrel in the ontology (1)
(3) it is located between mandrel (3) and ontology (1) with core sleeve (4), the balance set (2), and passes through with the inner wall of ontology (1)
It is threadedly coupled, the core sleeve (4) covers in the outside of mandrel (3), and is located at the lower end of mandrel (3), the core sleeve (4)
Be additionally provided between mandrel (3) limit sleeve (5), the core sleeve (4) be equipped with cut off (41), the limit sleeve (5) with
Core sleeve (4) is fixedly connected by cutting off (41)；
It is offered several mounting grooves (11) in the middle part of the ontology (1), is equipped with stable block in the mounting groove (11)
(6), the stabilization block (6) is flexibly connected with mandrel (3), and the middle part of the stabilization block (6) is equipped with triangular groove (61)；
The lower end of the ontology (1) is equipped with crossover sub (7), and the crossover sub (7) and ontology (1) are connected by screw thread
It connects.
2. according to claim 1 can undergauge stabilizer, it is characterised in that: be equipped with the conical surface in the mounting groove (11)
(111), the lower surface of the stabilization block (6) is matched with the conical surface (111).
3. according to claim 2 can undergauge stabilizer, it is characterised in that: the conical surface (111) is equipped with corner
(112), the corner (112) is in the triangular groove (61).
4. according to claim 1 can undergauge stabilizer, it is characterised in that: be equipped in the crossover sub (7) and institute
The first step (71) that the mandrel (3) stated matches.
5. according to claim 1 can undergauge stabilizer, it is characterised in that: the lower end of the mandrel (3) is equipped with second
Step (31), the limit sleeve (5) and second step (31) are clamped.
6. according to claim 1 can undergauge stabilizer, it is characterised in that: the inner and outer wall of the balance set (2)
On be equipped with several the first sealing rings (21).
7. according to claim 1 can undergauge stabilizer, it is characterised in that: the inner and outer wall of the core sleeve (4)
On be equipped with several the second sealing rings (42).
8. according to claim 1 can undergauge stabilizer, it is characterised in that: the stabilization block (6) passes through with mandrel (3)
Pivot pin is flexibly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821081133.6U CN208669229U (en) | 2018-07-09 | 2018-07-09 | It can undergauge stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821081133.6U CN208669229U (en) | 2018-07-09 | 2018-07-09 | It can undergauge stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669229U true CN208669229U (en) | 2019-03-29 |
Family
ID=65826931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821081133.6U Expired - Fee Related CN208669229U (en) | 2018-07-09 | 2018-07-09 | It can undergauge stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669229U (en) |
-
2018
- 2018-07-09 CN CN201821081133.6U patent/CN208669229U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210604 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No.83, 2nd Street, Binhai New Area Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| 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: 20190329 |