CN203097782U - Connecting rod structure of dismountable expansion cone - Google Patents
Connecting rod structure of dismountable expansion cone Download PDFInfo
- Publication number
- CN203097782U CN203097782U CN 201220702419 CN201220702419U CN203097782U CN 203097782 U CN203097782 U CN 203097782U CN 201220702419 CN201220702419 CN 201220702419 CN 201220702419 U CN201220702419 U CN 201220702419U CN 203097782 U CN203097782 U CN 203097782U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- expansion cone
- ring
- positioning sleeve
- caulking groove
- 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 - Lifetime
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a connecting rod structure of a dismountable expansion cone. The connecting rod structure comprises a connecting rod, a locating sleeve, an expansion cone and an elastic locating device. The outer surface of the front section of the connecting rod is a circular shoulder portion, the back section of the connecting rod draws down to form a sleeve section, and a caulking groove is arranged on the surround-shoulder portion; a circular groove matched with the surround-shoulder portion is arranged in a cavity of the front section of the locating sleeve, the circular groove is sleeved on the surround-shoulder portion, a distance is reserved between the bottom of the circular groove and the surround-shoulder portion, a circular protruding portion which is correspondingly sleeved on the sleeve section is inwardly formed by the cavity of the back section of the locating sleeve in radial direction, a location hole opposite to the caulking groove is reserved on the side wall of the circular groove, the diameter of the location hole is smaller than the inner diameter of the caulking groove; the expansion cone is sleeved on the sleeve section, the front end of the expansion cone is contacted with the rear end of the location sleeve, a locating groove portion is arranged between the inner wall of the expansion cone and the outer surface of the sleeve section, a clamping spring is jogged in the locating groove portion to fix the expansion cone on the sleeve section, and a plurality of seal rings are jogged at interval on the outer surface, contacted with the expansion cone, of the sleeve section of the connecting rod; and the elastic locating device is embedded in the caulking groove, and the outer end of the elastic locating device extends in the location hole to fixedly lock the connecting rod and the locating sleeve.
Description
Technical field
The utility model belongs to field of petroleum exploitation, in particular to a kind of connecting rod structure, and especially a kind of connecting rod structure of assembling and disassembing expanding awl.
Background technology
In recent years; along with the middle and later periods of oil exploitation to the oil field; the damage problem often appears in oil well in process of production; these problems are just having a strong impact on normal oil exploitation work, and making bulged tube technology apply degree at drilling well, completion and workover process increases day by day, particularly; this bulged tube technology is to drive expansion cone by hydraulic pressure or mechanical mode in expansion tube; therefore the technology that the expansion tube diameter is increased, can use the connecting rod structure that has expansion cone usually.
In the prior art, expansion cone is set on the connecting rod, and is a stuck structure between the two, and promptly connecting rod and expansion cone are stuck mutually, can't dismantle after the installation; But in the expansion operation, owing to be subjected to the axial load of hydraulic pressure, the sealing ring that causes expansion cone, connecting rod and both joints to be provided with is easy to be squeezed ruin, and often needs to change again.Yet, aborning, for the assembly structure of existing expansion cone and connecting rod, because expansion cone can't be dismantled after installing, also can't change sealing ring, cause this connecting rod structure can't realize recycling, can not satisfy requirement oil field control individual well operating cost and energy-saving and emission-reduction.
Therefore, the connecting rod structure of a kind of assembling and disassembing expanding awl of necessary design is to overcome the defective of prior art.
The utility model content
The purpose of this utility model is the connecting rod structure that is to provide a kind of assembling and disassembing expanding awl, can realize disassembling mutually of expansion cone and connecting rod, with recycling, addresses the deficiencies of the prior art.
For this reason, the utility model proposes a kind of connecting rod structure of assembling and disassembing expanding awl, it comprises:
The connecting rod of one hollow, the external surface of described connecting rod leading portion are a ring shoulder, and its back segment then undergauge forms a socket section, is concaved with at least one caulking groove on the external surface of described ring shoulder;
One positioning sleeve, the inner chamber of its leading portion forms an annular groove, described annular groove and described ring shoulder are complementary, and be nested with on described ring shoulder, and being separated with distance between the bottom land of described annular groove and described ring shoulder, the inner chamber of described positioning sleeve back segment radially inwardly forms a ring protuberance, described ring protuberance correspondence is linked on the described socket section, wherein, described positioning sleeve offers the locating hole relative with described caulking groove on the sidewall of its annular groove part, and the aperture of described locating hole is less than the internal diameter of described caulking groove;
One expansion cone, be set on the socket section of described connecting rod, its front end contacts with the rear end of described positioning sleeve, be formed with at least one location slot part between the external surface of the inwall of described expansion cone and described socket section, the embedded jump ring that closed of described location slot part, described expansion cone is fixed on the described socket section, wherein, be embedded with a plurality of sealing rings on the contacted external surface of the described expansion cone of socket Duan Zaiyu of described connecting rod at interval;
At least one elastic positioning device, its inner correspondence is embedded in the described caulking groove, its outer end then radially outwards protrudes out in the described locating hole, so that described positioning sleeve is locked on the described connecting rod, when the outer end of described elastic positioning device returns back in the described caulking groove, described positioning sleeve can be removed the lock-out state with described connecting rod, and moves towards described ring shoulder, makes the front end face of described ring protuberance be connected to described ring shoulder.
The connecting rod structure of aforesaid assembling and disassembing expanding awl, wherein, described elastic positioning device includes a pad, an elastic component, a locking key and a spacing ring, described pad and elastic component are placed in the described caulking groove successively, described locking key is T-shaped, and its head contacts with described elastic component, and the end of its bar portion then protrudes out in the described locating hole, described spacing ring is set in the bar portion of described locking key, and its two ends connect with the inwall of described head and described positioning sleeve respectively.
The connecting rod structure of aforesaid assembling and disassembing expanding awl, wherein, the ring shoulder of described connecting rod is respectively equipped with a described elastic positioning device along circumferentially being evenly equipped with three described caulking grooves in each described caulking groove, on the described positioning sleeve then correspondence be provided with three described locating holes.
The connecting rod structure of aforesaid assembling and disassembing expanding awl, wherein, described location slot part comprises two annular slots, be oppositely arranged on the external surface of socket part of described connecting rod and the inner surface of expansion cone, and described jump ring is a C shape ring, its correspondence is embedded in two described annular slots, so that described expansion cone is fixed on the described socket section.
The connecting rod structure of the assembling and disassembing expanding awl that the utility model provides, be convenient to processing, easy for installation, safeguard simple, efficiently solve the difficult problem that connecting rod and expansion cone can't be dismantled, realize the recycling of expansion cone and connecting rod, reduce the construction operation cost, reached the requirement of energy-saving and emission-reduction, significant in the operation of oil drilling, completion and subsidy casing damaged well.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.
Wherein:
Fig. 1 is the composition structural representation of the connecting rod structure of assembling and disassembing expanding awl of the present utility model.
Fig. 2 is the partial enlarged drawing at H place among Fig. 1.
The critical element label declaration:
1 connecting rod, 11 ring shoulders
12 socket sections, 13 caulking grooves
14 sealing rings, 15 annular slots
2 positioning sleeves, 21 annular grooves
22 ring protuberances, 23 locating holes
3 expansion cone, 31 annular slots
4 elastic positioning devices, 41 pads
42 elastic components, 43 locking keies
431 heads, 432 bar portions
44 spacing rings, 5 jump rings
The specific embodiment
Fig. 1 is the composition structural representation of the connecting rod structure of assembling and disassembing expanding awl of the present utility model.Fig. 2 is the partial enlarged drawing at H place among Fig. 1.
As shown in Figure 1, the connecting rod structure of the assembling and disassembing expanding awl that the utility model proposes, the connecting rod 1, a positioning sleeve 2, an expansion cone 3 and at least one elastic positioning device 4 that comprise a hollow, wherein: the external surface of described connecting rod 1 leading portion is a ring shoulder 11, its back segment then undergauge forms a socket section 12, is concaved with at least one caulking groove 13 on described ring shoulder 11 external surfaces;
The inner chamber of the leading portion of described positioning sleeve 2 forms an annular groove 21, described annular groove 21 is complementary with described ring shoulder 11, and be nested with on described ring shoulder 11, and the bottom land of described annular groove 21 and 11 of described ring shoulders are separated with distance, the size of this distance is not done concrete qualification at this, needs in can using according to reality are decided, in addition, the inner chamber of described positioning sleeve 2 back segments radially inwardly forms a ring protuberance 22, described ring protuberance 22 correspondences are linked on the described socket section 12, thus, make this ring protuberance 22 adjacent with the bottom land of annular groove 21, and and ring shoulder 11 between between be separated with distance, wherein, described positioning sleeve 2 offers the locating hole 23 relative with described caulking groove 13 on the sidewall of its annular groove part, and the aperture of described locating hole 23 is less than the internal diameter of described caulking groove 13;
Described expansion cone 3, be set on the socket section 12 of described connecting rod 1, its front end contacts with the rear end of described positioning sleeve 2, be formed with at least one location slot part between the external surface of the inwall of described expansion cone 3 and described socket section 12, the embedded jump ring 5 that closed of described location slot part, so that described expansion cone 3 is fixed on the described socket section 12, wherein, the socket section 12 of described connecting rod 1 with described expansion cone 3 contacted external surfaces on be embedded with at interval a plurality of sealing rings 14;
Described elastic positioning device 4 correspondences are embedded in the described caulking groove 13, and radially outwards protrude out in the described locating hole 23, so that described connecting rod 1 and described positioning sleeve 2 are locked, when the outer end of described elastic positioning device 4 returns back in the described caulking groove 13, described positioning sleeve 2 can be removed the lock-out state with described connecting rod 1, and move towards the direction of described ring shoulder 11, make the front end face of described ring protuberance 22 be connected to described ring shoulder 11.
Please in the lump referring to Fig. 2, preferred embodiment be, described elastic positioning device 4 includes a pad 41, one elastic component (as spring) 42, one locking key 43 and a spacing ring 44, described pad 41 and elastic component 42 are placed in the described caulking groove 13 successively, described locking key 43 is T-shaped, its head 431 contacts with described elastic component 42, the end of its bar portion 432 then protrudes out in the described locating hole 23, to constitute the outer end of this elastic positioning device, described spacing ring 44 is set in the bar portion 432 of described locking key 43, and its two ends connect with the inwall of described head 431 and described positioning sleeve 2 respectively.It is pointed out that in actual job the composition of this elastic positioning device is not limited to said structure, such as, the dop (as screw) of one elastic component and a T font can directly be set in caulking groove, and the end of this dop is embedded in locating hole, to lock this stop collar.
In addition, preferably at the ring shoulder 11 of described connecting rod 1 along circumferentially being evenly equipped with three described caulking grooves 13, be respectively equipped with a described elastic positioning device 4 in each described caulking groove 13, on the described positioning sleeve 2 then correspondence be provided with three described locating holes 23.
Preferred embodiment be, described location slot part comprises two annular slots 15,31, be oppositely arranged on the external surface of socket part 12 of described connecting rod 1 and the inner surface of expansion cone 3, and described jump ring 5 is a C shape ring, its correspondence is embedded in two described annular annular grooves 15,31, so that described expansion cone 3 is fixed on the described socket section 12.
Please in the lump referring to Fig. 1, the connecting rod structure of the assembling and disassembing expanding awl that the utility model proposes, in its actual job, the front end of connecting rod is connected in oil pipe, be lowered in the expansion tube in the lump, the detailed process of its expansion construction operation is same as the prior art, does not give unnecessary details at this, and details are as follows for the existing process of disassembling with regard to connecting rod in the utility model and expansion cone:
After the construction of expanding is finished, the connecting rod structure of assembling and disassembing expanding awl of the present utility model is proposed from the down-hole, locating hole 23 places at described positioning sleeve 2, light bar portion 432 ends of pressing described locking key 43 of tool using, make described locking key 43 compression elastic pieces 42 and return back in the described caulking groove 13, to break away from clip, make the lock-out state of described positioning sleeve 2 releasings and described connecting rod 1 to described positioning sleeve 2; Direction (left side among the figure) to the ring shoulder 11 of described connecting rod 1 promotes described positioning sleeve 2, make caulking groove 13 dislocation of locating hole 23 with the described connecting rod 1 of described positioning sleeve 2, at this moment, the locking key 43 of described elastic positioning device 4 is under the elastic force effect of elastic component 42, and the end of its bar portion is connected on the inwall of annular groove 21 parts of described positioning sleeve 2; Continue to move described positioning sleeve 2, connect until its ring protuberance 22 and ring shoulder 11, at this moment, the rear end of positioning sleeve 2 separates fully with expansion cone 3, and form a mobile space between the two, the length of this mobile space is identical with the displacement of positioning sleeve on the socket section; With the fixing described expansion cone 3 of instrument, and apply axial load towards the direction (right side among the figure) of described expansion cone 3 at the front end of described connecting rod 1, the related jump ring 5 of the socket section of described connecting rod 1 is knocking-on from the rear end of expansion cone, subsequently, remove described jump ring 5, described expansion cone 3 can be taken off from the socket section of described connecting rod 1, to change the work of sealing ring or other component; At last, again described jump ring 5 is embedded in the annular slot 15 of connecting rod 1, and with the front end of socket section 12, hits and be connected in the described expansion cone 3 from described expansion cone 3, described jump ring 5 correspondences are embedded in two annular slots 15,31, finish the mutual clamping of described connecting rod 1 and expansion cone 3; The direction (in figure right side) of described positioning sleeve 2 to described socket section 12 moved, when described locating hole 23 moves to caulking groove 13 places, described locking key 43 is under the elastic force effect of elastic component, the end of its bar portion is embedded clip again in described locating hole 23, thereby makes described positioning sleeve 2 locked again.Thus, the connecting rod structure of assembling and disassembing expanding awl of the present utility model has been finished and has been disassembled and changed operation.
The connecting rod structure of the assembling and disassembing expanding awl that the utility model provides, be convenient to processing, easy for installation, safeguard simple, efficiently solve the difficult problem that connecting rod and expansion cone can't be dismantled, realize the recycling of expansion cone and connecting rod, reduce the construction operation cost, reached the requirement of energy-saving and emission-reduction, significant in the operation of oil drilling, completion and subsidy casing damaged well.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations and the modification done under the prerequisite that does not break away from design of the present utility model and principle all should belong to the scope that the utility model is protected.
Claims (4)
1. the connecting rod structure of an assembling and disassembing expanding awl is characterized in that, the connecting rod structure of this assembling and disassembing expanding awl comprises:
The connecting rod of one hollow, the external surface of described connecting rod leading portion are a ring shoulder, and its back segment then undergauge forms a socket section, is concaved with at least one caulking groove on the external surface of described ring shoulder;
One positioning sleeve, the inner chamber of its leading portion forms an annular groove, described annular groove and described ring shoulder are complementary, and be nested with on described ring shoulder, and being separated with distance between the bottom land of described annular groove and described ring shoulder, the inner chamber of described positioning sleeve back segment radially inwardly forms a ring protuberance, described ring protuberance correspondence is linked on the described socket section, wherein, described positioning sleeve offers the locating hole relative with described caulking groove on the sidewall of its annular groove part, and the aperture of described locating hole is less than the internal diameter of described caulking groove;
One expansion cone, be set on the socket section of described connecting rod, its front end contacts with the rear end of described positioning sleeve, be formed with at least one location slot part between the external surface of the inwall of described expansion cone and described socket section, the embedded jump ring that closed of described location slot part, described expansion cone is fixed on the described socket section, wherein, be embedded with a plurality of sealing rings on the contacted external surface of the described expansion cone of socket Duan Zaiyu of described connecting rod at interval;
At least one elastic positioning device, its inner correspondence is embedded in the described caulking groove, its outer end then radially outwards protrudes out in the described locating hole, so that described positioning sleeve is locked on the described connecting rod, when the outer end of described elastic positioning device returns back in the described caulking groove, described positioning sleeve can be removed the lock-out state with described connecting rod, and moves towards described ring shoulder, makes the front end face of described ring protuberance be connected to described ring shoulder.
2. the connecting rod structure of assembling and disassembing expanding awl as claimed in claim 1, it is characterized in that, described elastic positioning device includes a pad, an elastic component, a locking key and a spacing ring, described pad and elastic component are placed in the described caulking groove successively, described locking key is T-shaped, its head contacts with described elastic component, the end of its bar portion then protrudes out in the described locating hole, described spacing ring is set in the bar portion of described locking key, and its two ends connect with the inwall of described head and described positioning sleeve respectively.
3. the connecting rod structure of assembling and disassembing expanding awl as claimed in claim 1 or 2, it is characterized in that, the ring shoulder of described connecting rod is respectively equipped with a described elastic positioning device along circumferentially being evenly equipped with three described caulking grooves in each described caulking groove, on the described positioning sleeve then correspondence be provided with three described locating holes.
4. the connecting rod structure of assembling and disassembing expanding awl as claimed in claim 1, it is characterized in that, described location slot part comprises two annular slots, be oppositely arranged on the external surface of socket part of described connecting rod and the inner surface of expansion cone, and described jump ring is a C shape ring, its correspondence is embedded in two described annular slots, so that described expansion cone is fixed on the described socket section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702419 CN203097782U (en) | 2012-12-18 | 2012-12-18 | Connecting rod structure of dismountable expansion cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702419 CN203097782U (en) | 2012-12-18 | 2012-12-18 | Connecting rod structure of dismountable expansion cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097782U true CN203097782U (en) | 2013-07-31 |
Family
ID=48849191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702419 Expired - Lifetime CN203097782U (en) | 2012-12-18 | 2012-12-18 | Connecting rod structure of dismountable expansion cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015934A (en) * | 2012-12-18 | 2013-04-03 | 中国石油天然气股份有限公司 | Connecting rod structure with demountable expansion cone |
-
2012
- 2012-12-18 CN CN 201220702419 patent/CN203097782U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015934A (en) * | 2012-12-18 | 2013-04-03 | 中国石油天然气股份有限公司 | Connecting rod structure with demountable expansion cone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103015934B (en) | A kind of connecting rod structure of assembling and disassembing expanding cone | |
| CN202117574U (en) | Drill rod rapid-change device for coal mine | |
| CN204025290U (en) | A kind of nut of belt washer | |
| CN104594826A (en) | Piston type hydraulic chuck | |
| CN203097782U (en) | Connecting rod structure of dismountable expansion cone | |
| CN103527135A (en) | Double-cylinder compression packer | |
| CN201786302U (en) | Expansion construction tool | |
| CN103628835A (en) | Internally pushed hanger | |
| CN108868689B (en) | Tail pipe rubber plug device for removing cement paste in sleeve at lower part of tail pipe well cementation choke ring | |
| CN204553399U (en) | A kind of hydraulic support tail boom pushing device | |
| CN203729945U (en) | Auxiliary hydraulic settling ball seat | |
| CN201090161Y (en) | New type connection and sealing structure for expansion tube | |
| CN104275673A (en) | Fastener installation tool | |
| CN205135446U (en) | Thermal production well is with flexible nipple joint | |
| CN202348193U (en) | Radius-variable expansion tool for sleeve damage of oil-gas well | |
| CN203570265U (en) | Slide sleeve oil extracting and draining device | |
| CN210422547U (en) | Wellhead valve is pressed and is changed and secondary seal device | |
| CN201306132Y (en) | Tripping and eccentric wear preventing centralizer of oil well pump | |
| CN203515361U (en) | Sleeve type telescopic short joint for well completion pipe column | |
| AU2017209218A1 (en) | Tool for opening sliding sleeve | |
| CN203626680U (en) | Multifunctional sucker rod salvaging device | |
| CN103144074B (en) | Inner semi-ring connected oil cylinder dismantling tool | |
| CN203655217U (en) | Novel releasing packer | |
| CN104625696A (en) | Method and tool for interference assembling conical-surface shaft and conical sleeve | |
| CN216707337U (en) | Device for disassembling piston with hole in deep blind hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |