CN217106856U - Novel hang circulation nipple joint - Google Patents
Novel hang circulation nipple joint Download PDFInfo
- Publication number
- CN217106856U CN217106856U CN202221086569.0U CN202221086569U CN217106856U CN 217106856 U CN217106856 U CN 217106856U CN 202221086569 U CN202221086569 U CN 202221086569U CN 217106856 U CN217106856 U CN 217106856U
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- China
- Prior art keywords
- lower casing
- jack catch
- conical surface
- instrument
- drilling tool
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Abstract
The utility model discloses a novel hang circulation nipple joint, including the last casing and the lower casing that link together in proper order, still set up pressure spring and jack catch between last casing and the lower casing, the one end that lower casing and jack catch are adjacent is the conical surface, jack catch and the adjacent one end of lower casing then be with lower casing conical surface matched with opening toper structure, the elasticity of pressure spring makes the opening toper structure of jack catch keep the laminating throughout with the lower casing conical surface. The utility model discloses a novel hang circulation nipple joint installs in the top of release system, does not influence the construction that various pump were out construction process. The pump-out emergency treatment device is suitable for pump-out construction emergency treatment conditions that the water hole of the drilling tool is smaller than the maximum diameter of the instrument; the two ends are standard drilling tool buttons, so that the field operation is convenient, and the operations of ball throwing, rod throwing, numerical control, cable releasing and the like are not influenced after the release system is connected.
Description
Technical Field
The utility model relates to an oil logging field, specific theory relates to a novel hang circulation nipple joint in this field, is applied to the pump-out type well logging construction technology.
Background
The pump-out construction process is suitable for complex wells, the instrument is arranged in the protective sleeve and fixed at the upper suspension part in the lowering process of the drilling tool, the instrument is released from the upper suspension part after the drilling tool reaches a target layer, the instrument is pushed out of the protective sleeve through the mud pump pressure and limited at the lower suspension part, and the logging can be lifted up after the instrument is confirmed to be completely pumped out.
In the process of lowering in pump-out construction, the instrument is arranged in the protective sleeve, the safety of the instrument is greatly improved, but in the process of lifting, the instrument is arranged at the lower end of the drilling tool, when the drilling tool meets well conditions such as necking and the like, the drilling tool can be blocked, and in order to facilitate the operation of releasing the blockage, the instrument string needs to be fished out of the well.
At present, the diameter of a water hole of a commonly used 5-inch drilling tool is generally larger than the maximum diameter of an instrument, and the instrument can be recovered to the ground through a fishing tool when the drilling tool is stuck; when the field is a 4-inch drilling tool, the diameter of a water hole is generally smaller than the maximum diameter of an instrument, although a fishing tool can pass through the water hole of the drilling tool, the instrument cannot be recycled to the ground, if the drilling tool is stuck during construction, a corresponding emergency disposal scheme is not provided, and particularly when a radioactive instrument is contained in an instrument string, serious influence is caused. The instrument is pumped out and then is arranged at the lower end of the drilling tool, and because the instrument is thin and has lower strength than the drilling tool, when the drilling tool is stuck, the operations of releasing the stuck drill, such as lifting, releasing, rotating and the like cannot be carried out, so that the great difficulty is brought to releasing the stuck drill.
The existing suspension release system has the following defects when a small-diameter drilling tool, namely a drilling tool water hole is smaller than the maximum diameter of an instrument: under complex well conditions, when a drilling tool is stuck, the instrument string cannot be recovered to the ground, and a corresponding emergency disposal scheme is not available; the instrument is arranged at the bottom of the drilling tool in a serial mode, and when the drilling tool is stuck, the conventional stuck releasing operation cannot be carried out; after the instrument string is released, the instrument string cannot be hung for the second time, and the instrument string cannot be hung in the protective sleeve again.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel hang circulation nipple joint is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a novel hang circulation nipple joint, its improvement lies in: including last casing and the lower casing that links together in proper order, still set up pressure spring and jack catch between last casing and the lower casing, the lower casing is the conical surface with the one end that the jack catch is adjacent, jack catch and lower casing adjacent one end then be with lower casing conical surface matched with opening toper structure, the elasticity of pressure spring makes the opening toper structure of jack catch and the lower casing conical surface remain the laminating throughout.
Furthermore, the inside of the clamping jaw is a conical surface.
Furthermore, a slurry circulating groove is arranged on the opening conical structure of the clamping jaw.
The utility model has the advantages that:
the utility model discloses a novel hang circulation nipple joint installs in the top of release system, does not influence the construction that various pump were out construction process. The pump-out emergency treatment device is suitable for pump-out construction emergency treatment conditions that the water hole of the drilling tool is smaller than the maximum diameter of the instrument; the two ends are provided with standard drilling tool buckles, so that the field operation is convenient, and the operations of ball throwing, rod throwing, numerical control, cable releasing and the like are not influenced after the release system is connected; because the water hole of the drilling tool is smaller than the maximum diameter of the instrument, the instrument cannot be recovered to the ground, but at least can be recovered into the protective sleeve, so that the instrument is effectively protected from being damaged, and the construction safety is greatly improved; after the instrument is recovered to the protective sleeve, the instrument can be limited at the position of the suspended circulation short section, the function of recovering and suspending the pump-out instrument again is achieved, the operation of releasing the drilling tool is convenient, and after the instrument is suspended successfully, the slurry can be normally circulated and judged through pumping pressure.
Drawings
Fig. 1 is a schematic structural diagram of a novel suspension circulation nipple disclosed in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a jaw in the novel hanging circulation nipple disclosed in embodiment 1 of the invention;
fig. 3 is the schematic view of the installation position of the novel hanging circulation nipple disclosed in embodiment 1 of the present invention in the releasing system.
Reference numerals: 1-go up the casing, 2 pressure springs, 3-jack catch, 31-opening toper structure, 4-lower casing, 5 drilling tool are buckled, 6-novel circulation nipple joint that hangs, 7-go up hang, 8-protective sheath, 9-hang down.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 3, the top at release system is connected to novel circulation nipple joint that hangs, top-down connection order is novel circulation nipple joint 6 that hangs during the construction, on hang 7 (the releaser of difference chooses for use corresponding hanging, the instrument cluster hangs fixed spacing last before the release, can carry out normal mud circulation), protective sheath 8 (the protective sheath can effectual protection instrument cluster not receive the damage of external force, length is confirmed according to the length of instrument cluster, the eye diameter needs to hang more than the instrument maximum diameter 6mm more than), hang 9 down (after the release, the instrument cluster hangs down the department spacing, it has mud circulation channel to hang down inside, through the mud pressure contrast of the same discharge capacity production around the release, judge whether the instrument pumps completely.
The internal structure of the novel suspension circulating short section can not obstruct pitching, bar pitching, numerical control and cable releasing, and does not influence normal pump-out construction. If the well condition is normal, the construction process is smooth, and the novel suspension circulating short section does not act; if the drilling tool meets the card, need retrieve the instrument cluster in the protective sheath, then transfer fishing tool and catch the instrument, lift instrument cluster length +2m, the instrument cluster can be fixed at the novel jack catch department that hangs circulation nipple joint spacing.
Claims (3)
1. The utility model provides a novel hang circulation nipple joint which characterized in that: including last casing and the lower casing that links together in proper order, still set up pressure spring and jack catch between last casing and the lower casing, the lower casing is the conical surface with the one end that the jack catch is adjacent, jack catch and lower casing adjacent one end then be with lower casing conical surface matched with opening toper structure, the elasticity of pressure spring makes the opening toper structure of jack catch and the lower casing conical surface remain the laminating throughout.
2. The novel hanging circulation nipple of claim 1, characterized in that: the inside of the clamping jaw is a conical surface.
3. The novel hanging circulation nipple of claim 1, characterized in that: and a slurry circulating groove is arranged on the opening conical structure of the clamping jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086569.0U CN217106856U (en) | 2022-05-07 | 2022-05-07 | Novel hang circulation nipple joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086569.0U CN217106856U (en) | 2022-05-07 | 2022-05-07 | Novel hang circulation nipple joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217106856U true CN217106856U (en) | 2022-08-02 |
Family
ID=82586075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221086569.0U Active CN217106856U (en) | 2022-05-07 | 2022-05-07 | Novel hang circulation nipple joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217106856U (en) |
-
2022
- 2022-05-07 CN CN202221086569.0U patent/CN217106856U/en active Active
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