CN210888918U - Pressure test oil pipe short joint - Google Patents
Pressure test oil pipe short joint Download PDFInfo
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- CN210888918U CN210888918U CN201921855828.XU CN201921855828U CN210888918U CN 210888918 U CN210888918 U CN 210888918U CN 201921855828 U CN201921855828 U CN 201921855828U CN 210888918 U CN210888918 U CN 210888918U
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- oil pipe
- cock
- testing
- pipe nipple
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Abstract
The utility model discloses a pressure testing oil pipe nipple joint, including plug valve, oil pipe nipple joint, cock, manometer, wherein the lower part and the oil pipe nipple joint of plug valve are connected, and oil pipe nipple joint middle part side opening links to each other with the inboard welding of cock, and the outside and the manometer of cock are connected. High-pressure fluid conveyed by the pump-tank truck group enters the pressure-testing tubing nipple after passing through the plug valve, then enters the downhole tubing string verified by pressure testing through the pressure-testing tubing nipple, the pressure change of a pressure gauge of the pressure-testing nipple is observed, and the actual pressure change of the downhole tubing string is truly reflected by the pressure at the moment. If the pressure is stable and unchanged, the downhole pipe column has no leakage point; if the pressure stably and slowly drops, the leakage point of the underground pipe column is indicated, and the higher the pressure drop speed is, the larger the leakage amount is; the larger the pore diameter of the pipe column leakage point. The utility model provides a problem and the oil-water well that the oil pipe post leaks accurate judgement leak test scurry external disturbance, test scurry not accurate actual problem.
Description
Technical Field
The utility model relates to a monitoring devices in the pit, in particular to pressure testing oil pipe nipple joint belongs to oil field oil recovery trade oil-water well minor repair operation in the pit and maintains.
Background
At present, the internal market of Jilin oil fields adopts the conventional pressure test and channeling test tubular column structural design, namely, a pressure test pump tank truck group is directly connected with a tubular column to be tested in the well. The main defects are that the leakage relations between the underground pipe column and the ground pump-tank vehicle set and the ground manifold cannot be distinguished, the real situation of the leakage of the underground pipe column is difficult to accurately and completely judge, and the influence of ground factors is large.
Disclosure of Invention
The utility model provides a pressure testing oil pipe nipple joint to solve the problem of mentioning in the above-mentioned background art.
The utility model discloses mainly solve two problems: firstly, the problems that the oil pipe microleakage is inaccurate in judgment and interpretation through pressure test analysis, and errors and external interference are large are solved; secondly, the problem that the inspection, analysis and judgment of the channeling of the oil-water well casing pipe are not accurate is solved.
In order to solve the technical problem, the utility model provides a following technical scheme:
pressure testing oil pipe nipple joint, including plug valve, oil pipe nipple joint, cock, manometer, wherein the lower part and the oil pipe nipple joint of plug valve are connected, and oil pipe nipple joint middle part side opening links to each other with the inboard welding of cock, and the outside and the manometer of cock are connected.
As the utility model discloses a preferred technical scheme, the oil pipe nipple joint is two cun half oil pipe nipple joints, length 1 meter, and the pressure resistance is not less than 16 Mpa.
As an optimized technical proposal of the utility model, the pressure resistance of the plug valve is not lower than 16 Mpa.
As an optimized technical scheme of the utility model, the withstand voltage ability of cock is 16 Mpa.
As an optimized technical scheme of the utility model, the manometer range is 16 Mpa.
High-pressure fluid conveyed by the pump-tank truck group enters the pressure-testing tubing nipple after passing through the plug valve, then enters the downhole tubing string for pressure testing verification through the pressure-testing tubing nipple, when the construction pressure reaches about 10 Mpa of the design, the pump is stopped, the spin match valve is closed, the connection between the verification tubing string, the high-pressure pump truck and an external connecting manifold is cut off, the pressure change of a pressure gauge of the pressure-testing nipple is observed, and the actual pressure change of the downhole tubing string is truly reflected by the pressure at the moment; if the pressure is stable and unchanged, the downhole pipe column has no leakage point; if the pressure stably and slowly drops, the leakage point of the underground pipe column is indicated, and the higher the pressure drop speed is, the larger the leakage amount is; the larger the pore diameter of the pipe column leakage point.
The utility model discloses the beneficial effect who reaches is:
1. the device has the outstanding effect in the aspect of leakage detection of the micro-leakage pressure test of the oil-water well production pipe column, the problems which cannot be found through the conventional pressure test can be accurately judged at present, the problem that most oil-water well pipe columns are difficult to find through the micro-leakage is solved, the inspection success rate is over 95 percent, 20 wells are tested in new woodland in 2019 in 1 to 6 months, the problems that 19 well pipe column screw threads or a body are abraded, the pipe column micro-leakage and the like are accurately detected, the success rate of pressure test leakage detection is improved by 95 percent at present since the device is applied compared with the original 50 percent, the whole effect is improved by 45 percent, and the application effect is very obvious.
2. The method has obvious effect in the aspect of channeling checking of the oil-water well, specifically reflects that external interference is eliminated, the channeling checking pressure change in the pipe column truly reflects the actual underground condition, and the success rate of channeling checking explanation is greatly improved; the problems of casing pipe micro leakage, slight groove channeling outside the casing pipe and the like which cannot be found in the past are solved; at present, all the materials can be discovered and verified; 8 wells are cumulatively implemented in the last half year of 2019, and the success rate of channeling test, namely the qualification rate reaches 100 percent.
The utility model relates to a simple structure, maneuverability is strong, simple installation, the convenient swift of operation, low cost, popularization and application nature is stronger with the popular type, and technical parameter reads directly perceived, and the analysis is explained and is judged the rate of accuracy height, and the interpretation error is little, the good reliability.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a plug valve; 2. an oil pipe nipple; 3. cock; 4. and a pressure gauge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1, the utility model discloses pressure testing oil pipe nipple joint, including plug valve, oil pipe nipple joint, cock, manometer, wherein the lower part and the oil pipe nipple joint of plug valve are connected, and oil pipe nipple joint middle part side opening links to each other with the inboard welding of cock, and the outside and the manometer of cock are connected, the oil pipe nipple joint is two cun half oil pipe nipples, and length 1 meter, pressure resistance are not less than 16Mpa, and the pressure resistance of plug valve is not less than 16Mpa, and the cock pressure resistance is 16Mpa, and the manometer range is 16 Mpa.
The upper part of a plug valve of the pressure test oil pipe nipple is connected with a high-pressure manifold of the pump-tank truck set, and the lower part of the oil pipe nipple is connected with a pressure test checking pipe column.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Pressure testing oil pipe nipple joint, its characterized in that, including plug valve, oil pipe nipple joint, cock, manometer, wherein the lower part and the oil pipe nipple joint of plug valve are connected, and oil pipe nipple joint middle part side opening links to each other with the inboard welding of cock, and the outside and the manometer of cock are connected.
2. The pressure test oil pipe nipple of claim 1, wherein the oil pipe nipple is a two-inch half oil pipe nipple, the length is 1 m, and the pressure resistance is not lower than 16 Mpa.
3. The pressure test tubing nipple of claim 1, wherein the plug valve has a pressure resistance of not less than 16 Mpa.
4. The pressure test tubing sub of claim 1, wherein the cock pressure resistance is 16 Mpa.
5. The pressure test tubing sub of claim 1, wherein the pressure gauge range is 16 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855828.XU CN210888918U (en) | 2019-10-31 | 2019-10-31 | Pressure test oil pipe short joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855828.XU CN210888918U (en) | 2019-10-31 | 2019-10-31 | Pressure test oil pipe short joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210888918U true CN210888918U (en) | 2020-06-30 |
Family
ID=71324213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921855828.XU Active CN210888918U (en) | 2019-10-31 | 2019-10-31 | Pressure test oil pipe short joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210888918U (en) |
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2019
- 2019-10-31 CN CN201921855828.XU patent/CN210888918U/en active Active
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