CN202745801U - Novel testing packer - Google Patents
Novel testing packer Download PDFInfo
- Publication number
- CN202745801U CN202745801U CN201220428110.4U CN201220428110U CN202745801U CN 202745801 U CN202745801 U CN 202745801U CN 201220428110 U CN201220428110 U CN 201220428110U CN 202745801 U CN202745801 U CN 202745801U
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- mandrel
- setting
- setting mandrel
- cone
- groove
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Abstract
A novel testing packer relates to the technical field of packers for oil recovery in oil fields and comprises an upper connector, wherein the lower end of the upper connector is connected with a setting mandrel by internal screw threads; the upper connector is sleeved with an outer bypass cylinder; the setting mandrel is sleeved with a rubber cylinder mandrel at intervals; the upper end of the rubber cylinder mandrel is connected with the lower end of the outer bypass cylinder through a sealing lip; the outer bypass cylinder, the upper connector, the sealing lip and the setting mandrel form a bypass route in the unsealing process and are sealed in the setting process; the setting mandrel below the rubber cylinder mandrel is sleeved with a cone; the setting mandrel below the cone is sleeved with a slip element assembly; the slip element assembly comprises two positioning lugs; a bypass hole communicated with the bypass route is formed in the outer bypass cylinder; the lower end of the cone is fixed on the setting mandrel through a positioning dowel; two groups of heteromorphic enclosed track grooves are uniformly distributed at the lower part of the setting mandrel; the two positioning lugs are arranged in the corresponding heteromorphic enclosed track grooves respectively; and each group of special-shaped enclosed track grooves comprises a long groove, a short groove and a transition groove. According to the testing packer, a tubular column is not required to be rotated, and the transposition is stable.
Description
Technical field
The utility model relates to the technical field of the packer in oil extraction in oil field field, especially uses the formation testing testing well of electric heating, the high angle hole of common testing test to use.
Background technology
Conventional test string uses PT packer or RTTS packer, transfers by the rotation of upper lifting pipe post again, makes packer set, and test zone and other interval, pit shaft fluid column are kept apart, and finally realizes the switch of down-hole; After using electric heating to the pit shaft heating, need to electric heating be installed at oil-pipe external wall, the rotation tubing string may be so that the electric heating of strip be wrapped on the tubing string, and the generation electric heating damages, tubing string is met the problems such as card.
The Y211-114 packer is not owing to going up bypass balance packing element pressure up and down, and when there was larger pressure reduction in packing element up and down, the packing element of expansion can't shrink, and packer can't deblocking.In addition, the transposition groove of this packer is shorter, fixing easy set packer during electric heating, the fragile packing element of restting.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of tubing string, stable novel test packer of transposition of need not rotating to be provided.
The purpose of this utility model is achieved in that the novel test packer, comprises top connection, and the lower end internal thread of top connection connects setting mandrel, and the lower end external screw thread of setting mandrel connects lower contact; Top connection is nested with the bypass urceolus outward, the outer spacer sleeve of setting mandrel is put the packing element mandrel, the upper end of packing element mandrel is connected by sealing lip with the lower end of bypass urceolus, forms by-pass, sealing when setting between described bypass urceolus, top connection, sealing lip and the setting mandrel when deblocking; Be nested with potted component on the packing element mandrel of described sealing lip below, the setting mandrel of packing element mandrel below is nested with cone outward, the upper end of cone is threaded with potted component, is nested with the slips assembly on the setting mandrel of cone below, and the slips assembly comprises two positioning tabs; The by-pass prot that is communicated with the by-pass is set on the described bypass urceolus; The lower end of described cone is fixed on the setting mandrel by shop bolt; The uniform two groups of abnormity closed orbit grooves in the bottom of described setting mandrel, two groups of abnormity closed orbit groove Rotational Symmetries arrange, two positioning tabs are separately positioned in the corresponding special-shaped closed orbit groove, and every group of abnormity closed orbit groove comprises respectively elongated slot, short groove and lead-over groove.
Operating principle of the present utility model:
When packer was gone into the well, friction cushion block and casing wall in the slips assembly were close to, and positioning tab is in the short groove of rail groove, packing element is in free state, and liquid is walked around packing element by the annular space of setting mandrel and packing element mandrel, from bypass flow, reduced when going into the well liquid to the resistance of tubing string; During base sealed packer, first upper lifting pipe post makes lug move to the bottom of short groove, transfer tubing string, setting mandrel moves down with cone, and lug moves in the elongated slot from short trench bottom, the descending distending slips of cone, slips is stuck on the casing wall, cut off the shop bolt on the cone, setting mandrel continues to move down, and closes first by-pass prot, then packing element is subjected to compression swelling, the Sealed casing pipe annular space; During deblocking, the upper lifting pipe post pulls open bypass, pressure balance on the packing element, and lug moves to the elongated slot bottom, and cone is up, and slips is regained, removing seal for packer.
Of the present utility model by above design, milled 2 groups of rail grooves at setting mandrel, interval 180 degree, 2 positioning tabs are symmetrical mobile, stress equalization; By the put-on and delegated of setting mandrel, realize the setting and deblocking of packer.By-pass prot has larger bypass area, and the energy bypass makes a trip, and liquid flows and the pressure of the front upper below of balance removing seal for packer; In cone shop bolt is installed, is locked setting mandrel, can bear the shearing force of 3-5T, prevent in the lower tubular column process, cone and setting mandrel produce displacement, close the by-pass; By these improvement, put in the realization and put the tubing string base sealed packer, and deblocking is convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is A section enlarged drawing among Fig. 1.
Fig. 3 is B section enlarged drawing among Fig. 1.
Fig. 4 is the structural representation of two groups of abnormity closed orbit grooves.
Among the figure, 1 top connection, 2 bypass urceolus, 3 setting mandrels, 4 by-pass prots, 5 by-passes, 6 sealing lips, 7 potted components, 8 packing element mandrels, 9 cones, 10 shop bolts, 11 slips assemblies, 11-1 positioning tab, 12 special-shaped closed orbit grooves, 12-1 elongated slot, the short groove of 12-2,12-3 First Transition groove, 12-4 the second lead-over groove, 13 lower contacts.
The specific embodiment
As Figure 1-3, the utility model mainly comprises top connection 1, and the lower end internal thread of top connection 1 connects setting mandrel 3, and the lower end external screw thread of setting mandrel 3 connects lower contact 13.The top connection 1 outer bypass urceolus 2 that is nested with, setting mandrel 3 outer spacer sleeves are put packing element mandrel 8, the upper end of packing element mandrel 8 is connected by sealing lip 6 with the lower end of bypass urceolus 2, forms by-pass 5, sealing when setting between bypass urceolus 2, top connection 1, sealing lip 6 and the setting mandrel 3 when deblocking.The by-pass prot 4 that is communicated with by-pass 5 is set on the bypass urceolus 2.Be nested with potted component 7 on the packing element mandrel 8 of sealing lip 6 belows, be nested with cone 9 outside the setting mandrel 3 of packing element mandrel 8 belows, the upper end of cone 9 is threaded with potted component 7, and the lower end of cone 9 is fixed on the setting mandrel 3 by shop bolt 10.Be nested with slips assembly 11 on the setting mandrel 3 of cone 9 belows, slips assembly 11 comprises two positioning tab 11-1, the uniform two groups of abnormity closed orbit grooves 12 in the bottom of setting mandrel 3, the 12 Rotational Symmetry settings of two groups of abnormity closed orbit grooves, two positioning tab 11-1 are separately positioned in the corresponding special-shaped closed orbit groove 12, every group of abnormity closed orbit groove 12 comprises respectively elongated slot 12-1, short groove 12-2, the second lead-over groove 12-4 and First Transition groove 12-3, the lower end of elongated slot 12-1 is arranged between the top and bottom of short groove 12-2, the upper end of short groove 12-2 is arranged on the below of elongated slot 12-1 upper end, the lower end of the second lead-over groove 12-4 is connected with the lower end of short groove 12-2, the upper end of the second lead-over groove 12-4 is connected between the top and bottom of elongated slot 12-1, the two ends of First Transition groove 12-3 respectively with the lower end of elongated slot 12-1 be connected the upper end of groove 12-2 and be connected.
Claims (1)
1. the novel test packer comprises top connection, and the lower end internal thread of top connection connects setting mandrel, and the lower end external screw thread of setting mandrel connects lower contact; Top connection is nested with the bypass urceolus outward, the outer spacer sleeve of setting mandrel is put the packing element mandrel, the upper end of packing element mandrel is connected by sealing lip with the lower end of bypass urceolus, forms by-pass, sealing when setting between described bypass urceolus, top connection, sealing lip and the setting mandrel when deblocking; Be nested with potted component on the packing element mandrel of described sealing lip below, the setting mandrel of packing element mandrel below is nested with cone outward, the upper end of cone is threaded with potted component, is nested with the slips assembly on the setting mandrel of cone below, and the slips assembly comprises two positioning tabs; It is characterized in that: the by-pass prot that is communicated with the by-pass is set on the described bypass urceolus; The lower end of described cone is fixed on the setting mandrel by shop bolt; The uniform two groups of abnormity closed orbit grooves in the bottom of described setting mandrel, two groups of abnormity closed orbit groove Rotational Symmetries arrange, two positioning tabs are separately positioned in the corresponding special-shaped closed orbit groove, and every group of abnormity closed orbit groove comprises respectively elongated slot, short groove and lead-over groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428110.4U CN202745801U (en) | 2012-08-28 | 2012-08-28 | Novel testing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428110.4U CN202745801U (en) | 2012-08-28 | 2012-08-28 | Novel testing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745801U true CN202745801U (en) | 2013-02-20 |
Family
ID=47705218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220428110.4U Expired - Lifetime CN202745801U (en) | 2012-08-28 | 2012-08-28 | Novel testing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929562A (en) * | 2015-06-24 | 2015-09-23 | 安东石油技术（集团）有限公司 | Packer |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
-
2012
- 2012-08-28 CN CN201220428110.4U patent/CN202745801U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929562A (en) * | 2015-06-24 | 2015-09-23 | 安东石油技术（集团）有限公司 | Packer |
| CN104929562B (en) * | 2015-06-24 | 2017-12-22 | 安东石油技术（集团）有限公司 | Packer |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
| CN111911110B (en) * | 2020-08-13 | 2022-05-03 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |