CN205225091U - Prevent falling joint - Google Patents
Prevent falling joint Download PDFInfo
- Publication number
- CN205225091U CN205225091U CN201520949173.8U CN201520949173U CN205225091U CN 205225091 U CN205225091 U CN 205225091U CN 201520949173 U CN201520949173 U CN 201520949173U CN 205225091 U CN205225091 U CN 205225091U
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- China
- Prior art keywords
- support member
- connecting rod
- housing
- elastic component
- lost joint
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Abstract
The utility model discloses a prevent falling joint, it includes: the casing that has an axis, wear to establish the connecting rod in the casing, it is used for being connected with wire rope, is provided with first elastic component between connecting rod and the casing, and the connecting rod can remove in the casing under the effect of first elastic component, the support piece of setting on the casing lateral wall, support piece have first end and the second end, and the direction that support piece can wind the axis of perpendicular to casing takes place to rotate, second elastic component with the support piece counterbalance, prevent falling joint has two operating position at least under the effect of second elastic component: when an operating position, support piece's first end offsets so that support piece's the second end is folded state with the connecting rod, when the 2nd operating position, support piece's first end and connecting rod break away from mutually, and support piece's the second end is outside extension state. This prevent falling joint can prevent that the instrument and equipment from dropping to the shaft bottom under the cracked condition of steel wire.
Description
Technical field
The utility model relate to a kind of oilfield exploitation technical field, particularly the anti-lost joint of one.
Background technology
At present, in the test process of various well testing, gas well tester often can be fallen in well due to misoperation, in order to address this problem, usual operating personnel can arrange anti-lost pawl and prevent tester in test process from dropping in well with this in blowout hookup, but the situation that anti-lost pawl can only be avoided because of winch operating personnel misoperation is set, and make instrumentation card at well head place, therefore use limitation larger, hole condition complicated and changeable cannot be tackled, especially tester is all in well during operation, the situation of the wire rope generation fracture that instrument uses is connected if now occur, the anti-lost pawl of above-mentioned setting cannot play a role, so, tester can be made to fall to shaft bottom, and then not easily carry out fishing, and it is huge to salvage cost.
Utility model content
In order to overcome the above-mentioned defect of prior art, the utility model embodiment technical problem to be solved there is provided a kind of anti-lost joint, and it can prevent plant and instrument from falling to shaft bottom when steel wire fracture.
The concrete technical scheme of the utility model embodiment is:
A kind of anti-lost joint, it comprises: the housing with an axis; Be located in the connecting rod in housing, it is provided with the first elastic component for being connected with wire rope between connecting rod and housing, can move in the housing at the effect lower connecting rod of the first elastic component; Be arranged on the support member in housing sidewall, support member has first end and the second end, and support member can rotate around the direction of the axis perpendicular to housing; The second elastic component offseted with support member; Under the effect of the second elastic component, anti-lost joint at least has two operating positions: when the first operating position, and the first end of support member and connecting rod offset to make the second end of support member to be rounding state; When the second operating position, first end and the connecting rod of support member are separated, and the second end of support member is outside extended configuration.
Preferably, the first elastic component comprises spring, and one end of spring and housing offset or fix, and the other end of spring and connecting rod offset or fix.
Preferably, the outer rim place of connecting rod lower end is provided with holding section, and when the first operating position, the holding section of the first end embedding connecting rod of support member makes both offset to make the second end of support member in the axis direction rounding state to housing.
Preferably, the sidewall of housing offers groove, and support member is arranged in groove.
Preferably, between the first end of support member and the second end, offer through hole, be provided with pin in through hole and can rotate around the direction of the axis perpendicular to housing to make support member.
Preferably, housing comprises top connection and lower contact, and top connection and the detachable connection of lower contact, form cavity between top connection and lower contact, and it is for accommodating first elastic component and connecting rod.
Preferably, the second elastic component comprises shell fragment.
Preferably, support member is arranged at the sidewall of housing around the axis direction ring-type of housing.
Preferably, support member is symmetrical set, and the two ends of the second elastic component offset with support member respectively or are fixedly connected with.
Preferably, anti-lost joint also comprises the locking nut and the attaching nut for being connected with rope socket head that are connected with the upper end of connecting rod.
The technical solution of the utility model has following remarkable beneficial effect:
Anti-lost joint in the utility model is when wire cable rupture, first elastic component shrinks, the lower end of connecting rod and the first end of support member are separated, support member can automatically strut under the effect of the second elastic component, and then can block mutually with tubing coupling place in oil well in the process fallen, thus avoid tester and fall into shaft bottom, significantly reduce the difficulty of salvaging tester and salvage cost.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit the utility model scope of disclosure by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping understanding of the present utility model, are not the shape and the proportional sizes that specifically limit each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shape and proportional sizes to implement the utility model as the case may be.
Fig. 1 is the sectional drawing of the anti-lost joint of the utility model.
Fig. 2 is the lateral view of the anti-lost joint of the utility model.
The Reference numeral of above accompanying drawing: 1, housing; 11, top connection; 111, through hole; 12, lower contact; 13, groove; 14, cavity; 2, connecting rod; 21, holding section; 3, the first elastic component; 4, support member; 41, through hole; 42, pin; 43, first end; 44, the second end; 5, the second elastic component; 6, fixture; 7, locking nut; 8, attaching nut.
Detailed description of the invention
By reference to the accompanying drawings with the description of the utility model detailed description of the invention, can clearly understand details of the present utility model.But detailed description of the invention of the present utility model described here, only for explaining the purpose of this utility model, and can not to be understood as by any way be to restriction of the present utility model.Under instruction of the present utility model, technician can conceive based on distortion possible arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Fig. 1 is the sectional drawing of the anti-lost joint of the utility model, as shown in Figure 1, a kind of anti-lost joint, it comprises: the housing 1 with an axis; Be located in the connecting rod 2 in housing 1, it is for being connected with wire rope, is provided with the first elastic component 3 between connecting rod 2 and housing 1, can move within the case 1 at the effect lower connecting rod 2 of the first elastic component 3; Be arranged on the support member 4 on housing 1 sidewall, support member 4 has first end 43 and the second end 44, and support member 4 can rotate around the direction of the axis perpendicular to housing 1; The second elastic component 5 offseted with support member 4; Under the effect of the second elastic component 5, anti-lost joint at least has two operating positions: during in the first operating position, and first end 43 and the connecting rod 2 of support member 4 offset to make the second end 44 of support member 4 in rounding state; When the second operating position, first end 43 and the connecting rod 2 of support member 4 are separated, and the second end 44 of support member 4 is in outside extended configuration.
This housing 1 can comprise top connection 11 and lower contact 12, and both are roughly cylindrical, and the detachable connection in the lower end of top connection 11 and the upper end of lower contact 12, can be connected by the mode such as screw thread, clamping between the two.Be formed with cavity 14 in the inside between the two, upper end of the lower end of top connection 11 and lower contact 12, this cavity 14 is for parts such as accommodating first elastic component 3 and connecting rods 2.The lower end of lower contact 12 can be provided with screw thread, and when tester G.I.H, it is for being connected with the tester etc. of lower going-into-well.The upper end of top connection 11 offers the through hole 111 that the cavity 14 that formed with top connection 11 and lower contact 12 is connected.
Connecting rod 2 is located in top connection 11 by the through hole 111 that top connection 11 upper end is offered, and a upper end part for connecting rod 2 passes top connection 11.Anti-lost joint also comprise be connected with the upper end of connecting rod 2 locking nut 7, attaching nut 8 for being connected with rope socket head.Screw thread can be offered in the part passing top connection 11 of connecting rod 2, locking nut 7 is connected with connecting rod 2 by screw thread, so can prevent connecting rod 2 from dropping downwards, the top of connecting rod 2 can connect an attaching nut 8, is connected with the rope socket head on the wire rope of whereabouts by attaching nut 8.The first elastic component 3 is provided with between connecting rod 2 and top connection 11, in one end of first elastic component 3 and housing 1, top connection 11 offsets or is fixedly connected with the inwall of top connection 11, and the other end of the first elastic component 3 and the sidewall of connecting rod 2 offset or be fixedly connected with the sidewall of connecting rod 2.First elastic component 3 can be the spring of high strength, and it is subjected to displacement hardly when bearing a small amount of pulling force, and so, when can ensure that this anti-lost joint bears the tester of its underpart connection, support member 4 can not rotate and open.
Fig. 2 is the lateral view of the anti-lost joint of the utility model, as shown in Figure 2, the sidewall of the lower contact 12 of housing 1 offers groove 13, support member 4 be arranged in groove 13.This groove 13 can be multiple, and its axis hoop around housing 1 distributes, certainly corresponding with groove 13, is provided with support member 4 in each groove 13.This groove 13 is connected with the cavity 14 of housing 1 inside, so, rotating along the direction perpendicular to the axis of housing 1 between groove 13 and housing 1 cavity 14 of support member 4 can be made, and then when the first operating position, the first end 43 of support member 4 and the second end 44 of support member 4 can both draw in the cavity 14 of groove 13 and housing 1, when the second operating position, first end 43 and the connecting rod 2 of support member 4 are separated, and the second end 44 of support member 4 can outwards stretch.
Through hole 41 is offered between the first end 43 of support member 4 and the second end 44, be provided with pin 42 in through hole 41 to rotate along the direction of the axis perpendicular to housing 1 to make support member 4, support member 4 can also be connected with housing 1 by pin 42 simultaneously.
The outer rim place of connecting rod 2 lower end is provided with holding section 21.Under the effect of the first elastic component 3, center-pole can move in the top connection 11 of housing 1, and under the first elastic component 3 is in the state of not stressing, the first end 43 of support member 4 embeds between the holding section 21 of center-pole and the inwall of housing 1 top connection 11.
The fixture 6 that can be provided with between the second end 44 of through hole 41 and support member 4 on the support 4, this fixture 6 can comprise screw, bolt etc., by this fixture 6 just the second elastic component 5 be connected with support member 4.Support member 4 can be symmetrical set, and the two ends of the second elastic component 5 offset with support member 4 respectively or are fixedly connected with.Certain, in another embodiment, one end and the support member 4 of the second elastic component 5 are fixed by fixture 6, and the other end of the second elastic component 5 also can offset with the inwall of housing 1 or fix.Second elastic component 5 can comprise spring, shell fragment or other there is elasticity and the parts that can strut.In these two kinds of embodiments, when the first end 43 of support member 4 is separated with connecting rod 2, under the effect of the second elastic component 5, support member 4 rotates along the direction of the axis perpendicular to housing 1, the second end 44 of support member 4 is interior to outer stretching, extension and then open-shaped state from the groove 13 of housing 1, now, anti-lost joint is falling state together with tester in well, the second end 44 of support member 4 can block mutually with the box cupling place of oil pipe, after the second end 44 and the box cupling place of oil pipe block mutually, tester and anti-lost joint just no longer continue to fall.
Operating principle of the present utility model is as follows, between the rope socket head this anti-lost joint being connected into tester and wire rope, tester is entered by under wire rope, under enter in process, excessively to rupture if wire rope is stressed, coupled connecting rod 2 compresses the first elastic component 3 and is upwards moved relative to housing 1, the holding section 21 of connecting rod 2 lower end like this moves up and the first end 43 of support member 4 is separated with connecting rod 2, support member 4 rotates under the effect of the second elastic component 5, and then make the second end 44 of support member 4 in the groove 13 of housing 1 to outer stretching, extension and then open-shaped state.Along with wire cable rupture, in the process that tester falls together with this anti-lost joint in well, the second end 44 of support member 4 can fasten with the box cupling place of oil pipe, after engaging, anti-lost joint is just stuck in oil pipe somewhere, so, so the tester being connected to anti-lost joint lower end is just in oil pipe somewhere together, can not fall to bottom oil well.Simultaneously in salvaging process, because support member 4 can not block with the box cupling place of oil pipe mutually when housing 1 moves up, thus anti-lost joint together with tester on can't be affected when carrying, fishing operation personnel thus instrument string can be tripped out smoothly.
On March 5th, 2015, carry out five ground field tests to this anti-lost joint, before steel wire fracture, the anti-lost connection supports frame of spring-piece type all opens and is successfully stuck in tubing coupling position, and field trial obtains successfully.On April 29th, 2015, the operation of spy sand surface construction is carried out to puckery 6-6-2 well, tester is carried in process, due to winch excessive velocities, wire rope is caused to disconnect at rope socket head place, the weighted lever that bottom connects, anti-lost joint, the first-class tool string of rope socket fall well, reconnect fishing tool (slip-type side window fisher+weighted lever+rope socket head) to go into the well, previous lost tool is successfully salvaged in oil pipe, illustrate that the anti-lost joint of spring-piece type is when steel wire fracture, support member 4 opens and is stuck in oil pipe, can successfully realize expected design target.
Anti-lost joint in the utility model decreases the tester caused because of hole condition and human users in test process to a great extent and to drop the generation of shaft bottom accident, make tester can be stuck in the box cupling place of oil pipe, thus substantially reduce salvaging difficulty and salvage expenses.Because once tester drops behind shaft bottom, instrument cannot be pulled out by existing fishing tool, and now the tester of the well that falls will be taken out just needs to carry out workover treatment, and operating expenses is larger.The use of this instrument effectively avoids tester and falls to shaft bottom, and now quite ripe to the fishing process of the tester string be stuck in oil pipe.Therefore, this anti-lost joint can alleviate the difficulty of salvaging tester greatly, reduces the cost of fishing significantly simultaneously.
Each embodiment in this manual all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. an anti-lost joint, is characterized in that, it comprises:
There is the housing of an axis;
Be located in the connecting rod in housing, it is provided with the first elastic component for being connected with wire rope between connecting rod and housing, can move in the housing at the effect lower connecting rod of the first elastic component;
Be arranged on the support member in housing sidewall, support member has first end and the second end, and support member can rotate around the direction of the axis perpendicular to housing;
The second elastic component offseted with support member;
Under the effect of the second elastic component, anti-lost joint at least has two operating positions: when the first operating position, and the first end of support member and connecting rod offset to make the second end of support member to be rounding state; When the second operating position, first end and the connecting rod of support member are separated, and the second end of support member is outside extended configuration.
2. anti-lost joint according to claim 1, is characterized in that, described first elastic component comprises spring, and one end of described spring and housing offset or fix, and the other end of described spring and described connecting rod offset or fix.
3. anti-lost joint according to claim 1, it is characterized in that, the outer rim place of described connecting rod lower end is provided with holding section, when the first operating position, the described holding section that the described first end of described support member embeds described connecting rod makes both offset to make the described the second end of described support member in the axis direction rounding state to described housing.
4. anti-lost joint according to claim 1, is characterized in that, the sidewall of described housing offers groove, and described support member is arranged in described groove.
5. anti-lost joint according to claim 4, it is characterized in that, offer through hole between the described first end of described support member and described the second end, be provided with pin in described through hole and can rotate around the direction of the axis perpendicular to described housing to make described support member.
6. anti-lost joint according to claim 1, it is characterized in that, described housing comprises top connection and lower contact, described top connection and the detachable connection of described lower contact, form cavity between described top connection and described lower contact, it is for accommodating described first elastic component and described connecting rod.
7. anti-lost joint according to claim 1, is characterized in that, described second elastic component comprises shell fragment.
8. anti-lost joint according to claim 1, is characterized in that, described support member is arranged at the sidewall of described housing around the axis direction ring-type of described housing.
9. anti-lost joint according to claim 8, is characterized in that, described support member is symmetrical set, and the two ends of described second elastic component offset with described support member respectively or are fixedly connected with.
10. anti-lost joint according to claim 1, is characterized in that, described anti-lost joint also comprises the locking nut and the attaching nut for being connected with rope socket head that are connected with the upper end of described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949173.8U CN205225091U (en) | 2015-11-25 | 2015-11-25 | Prevent falling joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949173.8U CN205225091U (en) | 2015-11-25 | 2015-11-25 | Prevent falling joint |
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| Publication Number | Publication Date |
|---|---|
| CN205225091U true CN205225091U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520949173.8U Active CN205225091U (en) | 2015-11-25 | 2015-11-25 | Prevent falling joint |
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|---|---|
| CN (1) | CN205225091U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401498A (en) * | 2016-12-14 | 2017-02-15 | 成都里尔斯石油科技有限公司 | Anti-falling joint and anti-falling test equipment |
| CN108150153A (en) * | 2016-12-02 | 2018-06-12 | 中国石油天然气股份有限公司 | A kind of oil/gas well inner cable tests anti-instrument dropping device |
| CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
| CN111946290A (en) * | 2020-10-09 | 2020-11-17 | 宜宾学院 | Coiled tubing prevents falling well device |
-
2015
- 2015-11-25 CN CN201520949173.8U patent/CN205225091U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150153A (en) * | 2016-12-02 | 2018-06-12 | 中国石油天然气股份有限公司 | A kind of oil/gas well inner cable tests anti-instrument dropping device |
| CN108150153B (en) * | 2016-12-02 | 2021-08-03 | 中国石油天然气股份有限公司 | Instrument device that drops is prevented in cable test in oil gas well |
| CN106401498A (en) * | 2016-12-14 | 2017-02-15 | 成都里尔斯石油科技有限公司 | Anti-falling joint and anti-falling test equipment |
| CN106401498B (en) * | 2016-12-14 | 2018-08-07 | 成都里尔斯石油科技有限公司 | Anti-lost connector and anti-lost test equipment |
| CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
| CN111946290A (en) * | 2020-10-09 | 2020-11-17 | 宜宾学院 | Coiled tubing prevents falling well device |
| CN111946290B (en) * | 2020-10-09 | 2022-07-19 | 宜宾学院 | Coiled tubing prevents falling well device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |