CN105422040A - Connecting structure of packer connector - Google Patents
Connecting structure of packer connector Download PDFInfo
- Publication number
- CN105422040A CN105422040A CN201510937534.1A CN201510937534A CN105422040A CN 105422040 A CN105422040 A CN 105422040A CN 201510937534 A CN201510937534 A CN 201510937534A CN 105422040 A CN105422040 A CN 105422040A
- Authority
- CN
- China
- Prior art keywords
- power ring
- slips
- top power
- connector
- packer
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The invention relates to the technical field of drilling and production of oilfields and oil wells, and in particular relates to a connecting structure of a packer connector. The connecting structure comprises an upper connector, a center pipe, an upper jacking ring, at least two rubber sleeves, a lower jacking ring, a cone, a slip element and a slip element fixing seat, wherein the upper connector is in thread connection with the upper jacking ring through outer threads, and the upper connector is connected to the center pipe through inner threads; a separating sheet is arranged between every two adjacent rubber sleeves; the lower jacking ring, which is arranged at the lower part of the center pipe, is connected to the cone through the inner threads; the slip element is connected to the slip element fixing seat which sleeves the center pipe. According to the connecting structure of the packer connector, the problem of direct contact between the upper connector and the rubber sleeves in the prior art can be avoided; the two jacking rings are arranged, the upper jacking ring is in thread connection with the upper connector, then the upper connector is fixed to the center pipe, thus achieving twice fixing, and as a result, the upper jacking ring can be effectively prevented from loosening, and the rubber sleeves can be prevented from loosening.
Description
Technical field
The present invention relates to oilfield drilling and production technology field, particularly relate to a kind of packer adapter syndeton.
Background technology
Oil well casing causes sleeve pipe to occur leakage phenomena because of reasons such as cementing quality, connecting thread, ground movement, corrosions, brings unfavorable factor to oil well measure construction and affects crude output.Once leakage situation appears in the non-payzone of oil well, must leakage points be determined before enforcement is repaired, now verify that the method for casing leakage point generally adopts packer, close oil jacket annular space at the above position of payzone, by sleeve pipe pressuring method, sleeve pipe is verified.But existing a few money packers are tested in cover work progress in enforcement, have unfavorable factor in varying degrees, cause construction to have some setbacks, can not accurately judge leak position problem.
As slip-type packer: because of slip-type packer by put and put tubing string, conversion slips track back seat card forms fulcrum, utilize release tubing string suspending weight compression packing element setting, but this kind of packer is not suitable for verifying that leakage points is constructed apart from the position that well head is more shallow and darker, during shallow-layer construction, because tubing string suspending weight deficiency causes setting bad, because of slips contrail difficulty during deep layer construction, cause setting difficulty.Particularly in horizontal well and high angle hole, the problems referred to above are particularly outstanding.
Fluid pressure type and inflatable packer: must can ensure that it is setting when keeping the large and casing pressure of tubing pressure when constructing.Test cover construction to terminate, when above extracting tubing string, the liquid in oil pipe must take ground out of, makes troubles to construction operation.
Existing packer top connection is directly connected with central tube, when packing element sets directly and a contacts side surfaces of top connection, often there will be top connection and loosens and the situation that causes packing element to discharge.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned technology, and a kind of packer adapter syndeton is provided, prevent top connection from loosening.
The present invention for achieving the above object, by the following technical solutions: a kind of packer adapter syndeton, it is characterized in that: comprise top connection, central tube, upper top power ring, packing element, lower top power ring, cone, slips and slips holder, described top connection is threaded with described upper top power ring by external screw thread, described top connection is connected with described central tube by internal thread, described packing element is at least two, partition is provided with between two adjacent packing elements, described lower top power ring is arranged on the bottom of described central tube, described lower top power ring is connected with described cone by internal thread, described cone coordinates with described slips, described slips is connected with described slips holder, described slips fixed seating is on described central tube.
Preferably, described upper top power ring and lower top power ring are plane with packing element contact surface.
The invention has the beneficial effects as follows: relative to prior art, this joint connecting structure avoids top connection in prior art and directly contacts with packing element, by arranging two top power rings, upper top power ring is first threaded with top connection, top connection is being fixed on central tube, fixed by twice, effectively can prevent top power ring from loosening, avoid the generation that packing element loosens situation.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention;
Fig. 2 is lateral view of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and preferred embodiment.As depicted in figs. 1 and 2, a kind of packer adapter syndeton, comprise top connection 1, central tube 2, upper top power ring 3, packing element 4, lower top power ring 5, cone 6, slips 7 and slips holder 8, described top connection is threaded with described upper top power ring by external screw thread, described top connection is connected with described central tube by internal thread, described packing element is at least two, partition 9 is provided with between two adjacent packing elements, described lower top power ring is arranged on the bottom of described central tube, described lower top power ring is connected with described cone by internal thread, described cone coordinates with described slips, described slips is connected with described slips holder, described slips fixed seating is on described central tube.
Described upper top power ring and lower top power ring are plane with packing element contact surface.
Relative to prior art, this joint connecting structure avoids top connection in prior art and directly contacts with packing element, by arranging two top power rings, upper top power ring is first threaded with top connection, top connection is being fixed on central tube, fixed by twice, effectively can prevent top power ring from loosening, avoid the generation that packing element loosens situation.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a packer adapter syndeton, it is characterized in that: comprise top connection, central tube, upper top power ring, packing element, lower top power ring, cone, slips and slips holder, described top connection is threaded with described upper top power ring by external screw thread, described top connection is connected with described central tube by internal thread, described packing element is at least two, partition is provided with between two adjacent packing elements, described lower top power ring is arranged on the bottom of described central tube, described lower top power ring is connected with described cone by internal thread, described cone coordinates with described slips, described slips is connected with described slips holder, described slips fixed seating is on described central tube.
2. packer adapter syndeton according to claim 1, is characterized in that: described upper top power ring and lower top power ring are plane with packing element contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937534.1A CN105422040A (en) | 2015-12-14 | 2015-12-14 | Connecting structure of packer connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937534.1A CN105422040A (en) | 2015-12-14 | 2015-12-14 | Connecting structure of packer connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422040A true CN105422040A (en) | 2016-03-23 |
Family
ID=55500535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937534.1A Pending CN105422040A (en) | 2015-12-14 | 2015-12-14 | Connecting structure of packer connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019180A (en) * | 2016-10-31 | 2018-05-11 | 天津汇铸石油设备科技有限公司 | Bidirectional bearing packer |
-
2015
- 2015-12-14 CN CN201510937534.1A patent/CN105422040A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019180A (en) * | 2016-10-31 | 2018-05-11 | 天津汇铸石油设备科技有限公司 | Bidirectional bearing packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |