CN202596635U - Drive-down bridge plug fishing tool - Google Patents
Drive-down bridge plug fishing tool Download PDFInfo
- Publication number
- CN202596635U CN202596635U CN 201220224860 CN201220224860U CN202596635U CN 202596635 U CN202596635 U CN 202596635U CN 201220224860 CN201220224860 CN 201220224860 CN 201220224860 U CN201220224860 U CN 201220224860U CN 202596635 U CN202596635 U CN 202596635U
- Authority
- CN
- China
- Prior art keywords
- jarring
- mandrel
- slip
- fishing
- bridge plug
- 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
Links
Abstract
The utility model relates to a drive-down bridge plug fishing tool applied to jarring and fishing when a bridge plug is plugged in an oil reservoir in the field of oil field exploration and development. The drive-down bridge plug fishing tool comprises a top connection, wherein the lower end of the top connection is in threaded connection with a jarring mandrel, a limit lug boss is integrally arranged on the jarring mandrel, a spline outer barrel is sleeved outside the jarring mandrel, the lower end of the spline outer barrel is in female connection with a centering joint, an adjusting sleeve and a jarring slip are arranged between the jarring mandrel and the centering joint, the adjusting sleeve is in male thread connection with the upper end of the centering joint, the jarring slip is arranged below the adjusting sleeve, the jarring slip is provided with slip grooves, and mandrel lug bosses are integrally arranged on the jarring mandrel at the parts of the slip grooves; and the lower end of the centering joint is in threaded connection with a fishing mandrel, and a fishing slip is sleeved on the fishing mandrel. According to the utility model, the drive-down bridge plug fishing tool descends to a shaft bottom to grasp a bridge plug, and a set load is increased, the jarring mandrel slips out of the jarring slip to perform jarring on the bridge plug, a pipe column can be descended repeatedly for performing jarring repeatedly, and the shock force can be adjusted on ground, therefore the drive-down bridge plug fishing tool has the advantages of simple structure, maintenance-free, and the like.
Description
Technical field
The jarring that the utility model is applied to after the oil reservoir bridge plugging in the oil field prospecting development field is salvaged.
Background technology
Bridging plug is used for the special tool of the interim shutoff of oil reservoir when being formation testing or oil development, when opening oil reservoir again, need with the bridging plug fishing tool it to be pulled out the influence of back because of factors such as stratum silt particle, corrosions but old-fashioned fishing tool is gone into the well; The success rate that bridging plug is fished for is not high; Must use bumper jar+fishing process that it is pulled out, the bumper jar complex structure that uses in this technology, cost of use is high; Also need the special messenger to operate and maintain; It is constant to bring for carrying out of work, has therefore developed simple in structure and non-maintaining mechanical jarring formula bridging plug fishing tool, and the problems referred to above are resolved.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of prior art, a kind of simple in structure and non-maintaining jarring formula bridging plug fishing tool to be provided.
The purpose of the utility model is achieved in that jarring formula bridging plug fishing tool, comprises top connection, the lower end of the top connection jarring mandrel that is threaded; Disjunctor is provided with positive stop lug boss on the jarring mandrel; The jarring mandrel is nested with the spline urceolus outward, and the lower end internal thread of spline urceolus connects sets upright joint, and the jarring mandrel of said positive stop lug boss below is provided with adjustment and overlaps and the jarring slips with setting upright between the joint; The adjustment cover is connected with the upper external screw thread of setting upright joint; The jarring slips is arranged on the below of adjustment cover, and the slips groove is set on the jarring slips, and disjunctor is provided with the mandrel boss on the jarring mandrel of slips groove; The said lower end of the setting upright joint salvaging mandrel that is threaded is salvaged on the mandrel and is nested with fishing slip.
During use with mechanical jarring formula bridging plug fishing tool with under the oil pipe lower going-into-well, in abundant circulation well cleanup, behind the heavy wash clean of bridging plug top sand setting or foreign material; Transfer instrument pressurization 1-3 ton, make fishing slip and salvage in the axle entering bridging plug salvaging hole, carry instrument on this moment; The friction inclined-plane of salvaging axle rises by the elasticity fishing slip outward, and slip insert is firmly bitten bridging plug and salvaged the hole inwall, when on when carrying load greater than the snap-in force between jarring axle and jarring slips; The jarring axle is up suddenly; Will on carry load and discharge suddenly, bump spline urceolus makes the bridging plug release and pulls out.
The utility model is after catching bridging plug to the shaft bottom down with oil pipe; On carry assumed load jarring mandrel promptly from the jarring slips slippage bridging plug is produced jarring; Repeat to transfer tubing string and can repeat jarring, jarring force can be adjusted on ground, has advantages such as simple in structure and non-maintaining.
In order to prevent that fishing slip from rotating on the salvaging mandrel, on the said salvaging mandrel locating slot is set axially, connect set screw on the fishing slip, the inner of set screw is arranged in the locating slot.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
The specific embodiment
As shown in Figure 1, for jarring formula bridging plug fishing tool, comprise top connection 1; The lower end of the top connection 1 jarring mandrel 3 that is threaded, disjunctor is provided with positive stop lug boss 3-1 on the jarring mandrel 3, the jarring mandrel 3 outer spline urceolus 2 that are nested with; The lower end internal thread of spline urceolus 2 connects sets upright joint 5; The jarring mandrel 3 of positive stop lug boss 3-1 below is provided with adjustment cover 10 and jarring slips 4 with setting upright between the joint 5, adjustment cover 10 is connected with the upper external screw thread of setting upright joint 5, and jarring slips 4 is arranged on to adjust and overlaps 10 below; Slips groove 4-1 is set on the jarring slips 4, and disjunctor is provided with mandrel boss 3-2 on the jarring mandrel 3 at slips groove 4-1 place.The lower end of setting upright joint 5 is threaded and salvages mandrel 6, salvages on the mandrel 6 locating slot 9 axially is set, and salvages on the mandrel 6 and is nested with fishing slip 7, connects set screw 8 on the fishing slip 7, and the inner of set screw 8 is arranged in the locating slot 9.
Claims (2)
1. jarring formula bridging plug fishing tool is characterized in that: comprise top connection, the lower end of the top connection jarring mandrel that is threaded; Disjunctor is provided with positive stop lug boss on the jarring mandrel; The jarring mandrel is nested with the spline urceolus outward, and the lower end internal thread of spline urceolus connects sets upright joint, and the jarring mandrel of said positive stop lug boss below is provided with adjustment and overlaps and the jarring slips with setting upright between the joint; The adjustment cover is connected with the upper external screw thread of setting upright joint; The jarring slips is arranged on the below of adjustment cover, and the slips groove is set on the jarring slips, and disjunctor is provided with the mandrel boss on the jarring mandrel of slips groove; The said lower end of the setting upright joint salvaging mandrel that is threaded is salvaged on the mandrel and is nested with fishing slip.
2. jarring formula bridging plug fishing tool according to claim 1, it is characterized in that: on the said salvaging mandrel locating slot is set axially, connects set screw on the fishing slip, the inner of set screw is arranged in the locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224860 CN202596635U (en) | 2012-05-18 | 2012-05-18 | Drive-down bridge plug fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224860 CN202596635U (en) | 2012-05-18 | 2012-05-18 | Drive-down bridge plug fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596635U true CN202596635U (en) | 2012-12-12 |
Family
ID=47314182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224860 Expired - Fee Related CN202596635U (en) | 2012-05-18 | 2012-05-18 | Drive-down bridge plug fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234654A (en) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | Underground hydraulic jarring stuck releasing device |
-
2012
- 2012-05-18 CN CN 201220224860 patent/CN202596635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234654A (en) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | Underground hydraulic jarring stuck releasing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |