CN112228040A - High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof - Google Patents
High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof Download PDFInfo
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- CN112228040A CN112228040A CN202011072457.5A CN202011072457A CN112228040A CN 112228040 A CN112228040 A CN 112228040A CN 202011072457 A CN202011072457 A CN 202011072457A CN 112228040 A CN112228040 A CN 112228040A
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- 230000003068 static effect Effects 0.000 title claims abstract description 127
- 238000007789 sealing Methods 0.000 title claims abstract description 107
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 title abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a high-temperature and high-pressure test method for an underground tool, a static sealing head and auxiliary installation equipment thereof. The auxiliary mounting equipment for the static sealing head comprises a hoisting head and a loading rod which are sequentially connected in the axial direction, one end of the loading rod, which is far away from the hoisting head, is connected with the static sealing head, and the hoisting head can be used for drawing the static sealing head and a test tool pipe connected with the static sealing head into a test well in series; the loading rod comprises a chuck and a rod body which are sequentially connected in the axial direction, the chuck is connected with the hoisting head, the rod body deviates from one end of the chuck is connected with the static sealing head, and the chuck can be used for pulling the static sealing head and the test tool pipe connected with the static sealing head to be serially connected out of the test well. The static sealing head comprises the static sealing head auxiliary mounting equipment and a static sealing head body. The test method comprises the step of carrying out high-temperature and high-pressure test on the underground tool by adopting the static sealing head. The invention has the beneficial effects that: the operation process is simplified, and potential safety hazards are avoided.
Description
Technical Field
The invention relates to the technical field of downhole tool testing, in particular to a downhole tool high-temperature high-pressure testing method, a static sealing head and auxiliary mounting equipment thereof.
Background
When the underground tool is used for a high-temperature high-pressure static pressure sealing test, the high-pressure static pressure sealing device has high upper jacking force, can meet the requirement of a long-time test by sealing through the static sealing head, and is stable and reliable. The static sealing head seals the wellhead through an O-shaped sealing ring. Through the high temperature high pressure test, the last "O" shape sealing washer of static pressure seal can warp and the inseparabler laminating of well head, after the test, can't directly take out the tool tube cluster from the simulation pit shaft through the driving, need not become flexible big clamping ring of well head, static pressure seal is sealed when good with the well head through suppressing and is become flexible static pressure seal when high temperature high pressure test back normal atmospheric temperature, the reuse driving is taken out, when static pressure seal is sealed when becoming invalid with the well head after high temperature high pressure test back normal temperature, can only take out whole static pressure seal rather than adhering to the well head part through the driving, draw on the machine is drawn on ground and separate static pressure seal and well head part. In view of the static sealing head installation operation and the operation such as pressing, hoisting and drawing machine in the process of taking out, the risks such as high-pressure puncture, hoisting, mechanical collision, injury and damage of personnel and equipment can exist.
Disclosure of Invention
In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, one of the purposes of the invention is to provide a high-temperature and high-pressure test method for a downhole tool, a static sealing head and auxiliary installation equipment thereof, which can be used in a working scene with the static sealing condition not higher than 210 MPa.
In order to achieve the purpose, the invention provides auxiliary mounting equipment for the static sealing head for the high-temperature and high-pressure test of the downhole tool. The auxiliary mounting equipment for the static sealing head can comprise a hoisting head and a loading rod which are axially connected, wherein one end of the loading rod, which is far away from the hoisting head, is connected with the static sealing head, and the hoisting head can be used for drawing the static sealing head and a test tool pipe connected with the static sealing head into a test well in series; the loading rod can include chuck and pole body that the axial connects gradually, the chuck with the hoisting head is connected, the pole body deviates from the one end and the static sealing head of chuck are connected, the chuck can be used for pulling static sealing head and with the experimental instrument pipe cluster of using that static sealing head links to each other goes out the test well.
The invention provides a static sealing head for a high-temperature and high-pressure test of a downhole tool. The static sealing head can comprise a hoisting head, a loading rod and a static sealing head body which are axially connected, wherein one end of the static sealing head body, which is far away from the loading rod, is connected with a test tool pipe string, and the hoisting head can be used for drawing the static sealing head and the test tool pipe connected with the static sealing head to be serially connected into a test well; the loading rod comprises a chuck and a rod body which are axially connected, the chuck is connected with the hoisting head, one end of the rod body, which deviates from the chuck, is connected with the static sealing head body, and the chuck can be used for pulling the static sealing head and the test tool pipe connected with the static sealing head to be serially connected out of the test well.
In yet another aspect, the present invention provides a downhole tool high temperature and high pressure testing method. The test method may use the static sealing head for test described above and may include the steps of: pulling the static sealing head and a test tool pipe string connected with the static sealing head into a test well through a hoisting head, fastening a wellhead pressure ring, and performing a high-temperature high-pressure test; after the experiment is finished, the wellhead compression ring is loosened, and the static sealing head and the experimental tool pipe connected with the static sealing head are connected out of the experimental well in series through the chuck traction.
Compared with the prior art, the beneficial effects of the invention can include: the operations such as pressing, hoisting, drawing machine and the like in the process of taking out the static sealing head of the wellhead of the high-temperature and high-pressure test platform are avoided, and the original test risk can be avoided.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 shows a cross-sectional view of a static seal head for high temperature and high pressure testing of a downhole tool in an exemplary embodiment of the invention.
Description of the main reference numerals:
1. the device comprises a hoisting head 2, a loading rod 21, a chuck 22, a rod body 3 and a static sealing head body.
Detailed Description
Hereinafter, the high temperature and high pressure test method for a downhole tool, the static seal head and the auxiliary installation apparatus thereof according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
The invention provides auxiliary static sealing head mounting equipment for a high-temperature and high-pressure test of an underground tool.
In an exemplary embodiment of the invention, the static seal head auxiliary mounting device may include a hoisting head and a loading rod which are axially connected, and an end of the loading rod facing away from the hoisting head may be further connected with the static seal head. As shown in fig. 1, the auxiliary static seal head mounting device may include a portion for removing the static seal head body 3, that is, the auxiliary static seal head mounting device may include a hoisting head 1 and a loading rod 2 which are coaxially disposed and connected, and the right end of the loading rod 2 is connected to the static seal head body 3 (i.e., the static seal head).
Specifically, the hoisting head can be used for connecting a travelling crane or other equipment capable of providing traction force to pull the static sealing head and a test tool pipe connected with the static sealing head to be connected into a test well in series.
In this embodiment, the hoisting head and the loading rod may be in threaded connection.
Specifically, the loading rod may include a collet and a rod body connected in series axially.
Wherein, the chuck can with the hoisting head is connected.
The end, deviating from the chuck, of the rod body can be connected with the static sealing head, and the chuck can be used for being connected with a travelling crane or other equipment capable of providing traction force to pull the static sealing head and enable the tool tube for the test connected with the static sealing head to be connected out of the test well.
As shown in fig. 1, the chuck 21 may be formed by three sections of cylinders with different radial sizes from left to right, and the radial size of the middle section of cylinder is smaller than that of the cylinders at the two ends, so as to be connected with a traction force loading device, so as to pull the static sealing head and the test tool tube connected with the static sealing head out of the test well; the shaft 22 may be formed as a cylinder of uniform radial dimension.
In this embodiment, the collet may be threadedly coupled to the shank, and the shank may be threadedly coupled to the static seal head.
In addition, the hoisting head, the loading rod and the static sealing head connected with the loading rod can be of an integrated structure; the hoisting head, the loading rod and the static sealing head can be coaxially arranged.
The invention provides a static sealing head for a high-temperature and high-pressure test of a downhole tool.
In another exemplary embodiment of the present invention, the static sealing head may include a hoisting head, a loading rod and a static sealing head body, which are axially connected in sequence, that is, the auxiliary mounting apparatus described in the previous exemplary embodiment and a static sealing head connected to the auxiliary mounting apparatus are included. As shown in fig. 1, the static sealing head may include a hoisting head 1, a loading rod 2, and a static sealing head body 3, which are coaxially disposed and sequentially connected.
Specifically, the hoisting head can be used for connecting a travelling crane or other equipment capable of providing traction force to pull the static sealing head and a test tool pipe connected with the static sealing head to be connected into a test well in series.
In this embodiment, the hoisting head and the loading rod may be in threaded connection.
Specifically, the loading rod may include a collet and a rod body connected in series axially.
Wherein, the chuck can with the hoisting head is connected.
The end, deviating from the chuck, of the rod body can be connected with the static sealing head, and the chuck can be used for being connected with a travelling crane or other equipment capable of providing traction force to pull the static sealing head and enable the tool tube for the test connected with the static sealing head to be connected out of the test well.
As shown in fig. 1, the chuck 21 may be formed by three sections of cylinders with different radial sizes from left to right, and the radial size of the middle section of cylinder is smaller than that of the cylinders at the two ends, so as to be connected with a traction force loading device, so as to pull the static sealing head and the test tool tube connected with the static sealing head out of the test well; the shaft 22 may be formed as a cylinder of uniform radial dimension.
In this embodiment, the collet may be threadedly coupled to the shank, and the shank may be threadedly coupled to the static seal head.
In addition, the hoisting head, the loading rod and the static sealing head connected with the loading rod can be of an integrated structure; the hoisting head, the loading rod and the static sealing head can be coaxially arranged.
In yet another aspect, the present invention provides a downhole tool high temperature and high pressure testing method.
In still another exemplary implementation of the present invention, the testing method may use the static sealing head for testing described in the second exemplary embodiment, and may include the steps of: pulling the static sealing head and a test tool pipe string connected with the static sealing head into a test well through a hoisting head, fastening a wellhead pressure ring, and performing a high-temperature high-pressure test; after the experiment is finished, the wellhead compression ring is loosened, and the static sealing head and the experimental tool pipe connected with the static sealing head are connected out of the experimental well in series through the chuck traction.
In summary, the advantages of the downhole tool high temperature and high pressure testing method, the static sealing head and the auxiliary installation equipment thereof of the present invention may include:
(1) the operations of pressing, hoisting, drawing and the like in the process of taking out the static sealing head of the wellhead of the high-temperature and high-pressure test platform are avoided, and the risks of high-pressure puncture, hoisting, mechanical collision, injury and damage of personnel and equipment and the like in the prior art can be avoided;
(2) the operation process is simplified, and the installation operation of the static seal head of the wellhead of the high-temperature and high-pressure test platform is efficiently and safely finished;
(3) the equipment and the method can be used under the condition that the maximum bearing pressure under the static sealing condition is 210 MPa; the equipment and the method can be used under the condition that the maximum bearing pressure under the dynamic sealing condition is 105 MPa; the equipment and the method can stabilize the working time to 15 d.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The auxiliary mounting equipment for the static sealing head for the high-temperature and high-pressure test of the downhole tool is characterized by comprising a hoisting head and a loading rod which are axially connected, wherein one end of the loading rod, which is far away from the hoisting head, is connected with the static sealing head,
the hoisting head can pull the static sealing head and a test tool pipe connected with the static sealing head to be connected into the test well in series;
the loading rod comprises a chuck and a rod body which are axially connected, the chuck is connected with the hoisting head, one end of the rod body, which deviates from the chuck, is connected with the static sealing head, and the chuck can pull the static sealing head and the test tool pipe connected with the static sealing head to be connected out of the test well.
2. The static seal head auxiliary mounting device for the high-temperature and high-pressure test of the downhole tool as claimed in claim 1, wherein the hoisting head, the loading rod and the static seal head are of an integrated structure.
3. The static seal head auxiliary mounting device for the high-temperature and high-pressure test of the downhole tool as claimed in claim 1, wherein the hoisting head, the loading rod and the static seal head are coaxially arranged.
4. The static sealing head for the high-temperature and high-pressure test of the downhole tool is characterized by comprising a hoisting head, a loading rod and a static sealing head body which are sequentially connected in the axial direction, wherein one end of the static sealing head body, which is far away from the loading rod, is connected with a tool tube string for the test,
the hoisting head can pull the static sealing head and a test tool pipe connected with the static sealing head to be connected into the test well in series;
the loading rod comprises a chuck and a rod body which are sequentially connected in the axial direction, the chuck is connected with the hoisting head, the rod body deviates from one end of the chuck and the static sealing head body, and the chuck can be used for drawing the static sealing head and enabling a tool tube for test connected with the static sealing head to be connected out of the test well in series.
5. The static sealing head for the high-temperature and high-pressure test of the downhole tool as claimed in claim 4, wherein the hoisting head, the loading rod and the static sealing head body are of an integrated structure.
6. The static sealing head for the high-temperature and high-pressure test of the downhole tool as claimed in claim 4, wherein the hoisting head, the loading rod and the static sealing head body are coaxially arranged.
7. A method for testing a downhole tool at high temperature and high pressure, the method using the static sealing head for testing of any one of claims 4 to 6 and comprising the steps of:
the static sealing head and a test tool pipe string connected with the static sealing head are pulled into a test well through the hoisting head, a wellhead compression ring is fastened, and a high-temperature high-pressure test is carried out;
after the experiment is finished, the wellhead compression ring is loosened, and the static sealing head and the experimental tool pipe connected with the static sealing head are connected out of the experimental well in series through the chuck traction.
8. The downhole tool hpht test method of claim 7, wherein the hoisting head, the loading rod, and the static seal head body are a unitary structure.
9. The downhole tool hpht test method of claim 7, wherein the hoisting head, the loading rod, and the static seal head body are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072457.5A CN112228040A (en) | 2020-10-09 | 2020-10-09 | High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072457.5A CN112228040A (en) | 2020-10-09 | 2020-10-09 | High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof |
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| Publication Number | Publication Date |
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| CN112228040A true CN112228040A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011072457.5A Pending CN112228040A (en) | 2020-10-09 | 2020-10-09 | High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010027865A1 (en) * | 2000-02-02 | 2001-10-11 | Wester Randy J. | Non-intrusive pressure measurement device for subsea well casing annuli |
| CN103630349A (en) * | 2013-12-09 | 2014-03-12 | 武汉海王机电工程技术公司 | Testing device for compression packers |
| CN109025905A (en) * | 2018-10-13 | 2018-12-18 | 中石化石油工程技术服务有限公司 | High temperature and pressure test pit shaft circulation temperature lowering sealing container |
| CN209067195U (en) * | 2018-11-30 | 2019-07-05 | 成都托克密封件有限责任公司 | A kind of downhole tool high temperature and pressure simulation test well |
| CN209261518U (en) * | 2018-11-30 | 2019-08-16 | 成都托克密封件有限责任公司 | A kind of convenient and fast downhole tool simulation test well of handling |
-
2020
- 2020-10-09 CN CN202011072457.5A patent/CN112228040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010027865A1 (en) * | 2000-02-02 | 2001-10-11 | Wester Randy J. | Non-intrusive pressure measurement device for subsea well casing annuli |
| CN103630349A (en) * | 2013-12-09 | 2014-03-12 | 武汉海王机电工程技术公司 | Testing device for compression packers |
| CN109025905A (en) * | 2018-10-13 | 2018-12-18 | 中石化石油工程技术服务有限公司 | High temperature and pressure test pit shaft circulation temperature lowering sealing container |
| CN209067195U (en) * | 2018-11-30 | 2019-07-05 | 成都托克密封件有限责任公司 | A kind of downhole tool high temperature and pressure simulation test well |
| CN209261518U (en) * | 2018-11-30 | 2019-08-16 | 成都托克密封件有限责任公司 | A kind of convenient and fast downhole tool simulation test well of handling |
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