CN111894553A - Connecting device for underground liquid level monitoring and underground liquid level monitoring method - Google Patents
Connecting device for underground liquid level monitoring and underground liquid level monitoring method Download PDFInfo
- Publication number
- CN111894553A CN111894553A CN202010911615.5A CN202010911615A CN111894553A CN 111894553 A CN111894553 A CN 111894553A CN 202010911615 A CN202010911615 A CN 202010911615A CN 111894553 A CN111894553 A CN 111894553A
- Authority
- CN
- China
- Prior art keywords
- liquid level
- sealing body
- self
- interface
- adaptive
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 47
- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 6
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides a connecting device for underground liquid level monitoring and an underground liquid level monitoring method. The connecting device comprises a connecting part, a self-adaptive sealing body and a conducting pipe, wherein one end of the connecting part is connected with the shaft liquid level monitor, and the other end of the connecting part is connected with the conducting pipe; the middle part of the self-adaptive sealing body is provided with a cavity penetrating through the self-adaptive sealing body, and the self-adaptive sealing body can be arranged in an interface at a measured position and seals the interface; the conduction pipe sets up in the cavity, and the conduction pipe can be with liquid level information in the pit through adapting unit conduction to pit shaft liquid level monitor. The monitoring method can monitor the underground liquid level by using a monitoring system. The liquid level monitoring method and the connecting device can seal pipe diameters with different sizes, replace the traditional multi-size connecting joint, ensure good sealing effect, monitor the liquid level of a shaft in time, and have simple operation and convenient use; the monitoring method is rapid.
Description
Technical Field
The invention belongs to the field of petroleum and natural gas drilling operation, and particularly relates to a connecting device for underground liquid level monitoring and an underground liquid level monitoring method.
Background
With the further deepening of exploration and development of hydrocarbon reservoirs, at present, the well leakage condition is met in the drilling process, and deep marine stratums contain harmful gases such as hydrogen sulfide (the gas yield of a sulfur-containing gas field in China accounts for 60 percent of the gas yield in China), so that the exploration and development process of the stratums is seriously hindered. In particular, in the process of tripping a stratum which is easy to leak and transfer and spout, for underground liquid level measurement, the current method is to connect an underground liquid level monitoring instrument which is commonly used in the industry to measurement positions of a drilling tool or a kill manifold, an oil production tree and the like after an annular blowout preventer is intermittently closed according to a conventional method for measuring the underground liquid level, and carry out sealing monitoring by using a processed special variable buckle connecting device or towel, cotton yarn winding and the like. The biggest disadvantages of the conventional well logging methods include: firstly, when the special variable buckle connecting device is processed, variable buckle connecting devices with different sizes need to be equipped, and the special variable buckle connecting device is connected by threads or bolts when in use, so that the use is inconvenient; secondly, the towel and the cotton yarn are used for sealing, the sealing effect is poor, and the measured value is seriously influenced.
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 objectives of the present invention is to provide a downhole liquid level monitoring method which is suitable for rapidly monitoring downhole liquid levels under different pipe diameters.
In order to achieve the above object, an aspect of the present invention provides a downhole fluid level monitoring connection device. The connecting device can comprise a connecting part, a self-adaptive sealing body and a conducting pipe, wherein one end of the connecting part is connected with the shaft liquid level monitor, and the other end of the connecting part is connected with the conducting pipe; the middle part of the self-adaptive sealing body is provided with a cavity penetrating through the self-adaptive sealing body, and the self-adaptive sealing body can be arranged in the measuring position interface and seals the measured position interface; the conducting pipe is arranged in the cavity and can conduct underground liquid level information to the shaft liquid level monitor through the connecting part.
In an exemplary embodiment of the connection device for monitoring the downhole fluid level, the adaptive sealing body is in an inverted cone structure, the inclined surface of the inverted cone is in sealing fit with the interface of the measured position, and the connection part is arranged above the inverted cone structure.
In an exemplary embodiment of the connection device for downhole fluid level monitoring according to the present invention, the adaptive seal is made of an elastomeric material.
In another aspect of the invention, a method for monitoring the liquid level of a downhole liquid level monitoring connection device is provided. The method may include: connecting a shaft liquid level monitor with one end of the connecting component; putting the self-adaptive sealing body into an interface of a measured position and sealing the interface of the measured position; downhole fluid level measurements are made.
Compared with the prior art, the invention has the beneficial effects that:
(1) the connecting device can seal pipe diameters of different sizes, replaces the traditional multi-size connecting joint, can ensure quick installation and sealing, can monitor the liquid level of a shaft in time, and is simple to operate and convenient to use;
(2) the connecting device has good sealing effect with the interface of the measured position, and avoids the problem of poor sealing after the traditional sealing by using towels, cotton yarns and the like;
(3) the monitoring method can realize rapid monitoring of the underground liquid level and is convenient to operate.
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 connection device according to an exemplary embodiment of the present invention.
Description of the main reference numerals:
1. connecting part, 2, conduction pipe, 3, self-adaptation sealing body.
Detailed Description
Hereinafter, a connection device for downhole fluid level monitoring and a downhole fluid level monitoring method according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
One aspect of the invention provides a connection device for downhole fluid level monitoring.
In an exemplary embodiment of the present invention, as shown in fig. 1, the connection device may include a connection part 1, a conductive pipe 2, and an adaptive sealing body 3. One end of the connecting part 1 is connected with a shaft liquid level monitor, and the other end of the connecting part is connected with the conduction pipe 2; the self-adaptive sealing body 3 can be placed in the interface of the measured position when the underground liquid level needs to be measured and seals the interface; the middle part of the self-adaptive sealing body 3 is provided with a cavity penetrating through the self-adaptive sealing body 3; the conducting tube 2 is arranged in a cavity of the adaptive sealing body 3. One end of the conductive pipe 2 is connected to the connection member 1. The conducting pipe can conduct the underground liquid level information to the shaft liquid level monitor through the connecting part. One end of the conduction pipe 2 can be flush with one end face of the self-adaptive sealing body 3, and the other end connected with the connecting part 1 is higher than the other end face of the self-adaptive sealing body 3.
In this embodiment, as shown in fig. 1, in order to facilitate the adaptive sealing body 3 to better enter the interface of the measured position and achieve better sealing, the adaptive sealing body 3 may be configured in an inverted cone structure. The inclined plane of the inverted cone structure is in sealing fit with the interface of the measured position. The connecting part 1 is arranged above the adaptive sealing body 3 with the inverted cone structure.
In this embodiment, the adaptive sealing body 3 may be made of an elastic material.
In this embodiment, the connection means may be provided at the interface of the measured location. For example, the connection device may be placed at the location of a measurement, such as a drilling tool, kill manifold, or christmas tree. And arranging the self-adaptive sealing body of the connecting device in the opening of the measured position of the drilling tool, the kill manifold or the Christmas tree and the like. After one end of the connecting device is connected with the shaft liquid level monitor, the shaft liquid level monitor can start to monitor the underground liquid level. The wellbore level monitor may be a conventional wellbore level monitor.
Another aspect of the invention provides a method of downhole fluid level monitoring. In an exemplary embodiment of the downhole fluid level monitoring method of the present invention, the monitoring method may be performed using the above-described downhole fluid level monitoring connection device and the wellbore fluid level monitor, and the monitoring method may include:
s01, connecting the shaft liquid level monitor with the connecting component;
s02, placing the connecting device in the interface of the measured position, and sealing the interface;
and S03, starting to measure the liquid level in the well.
And when the underground liquid level measurement is started, the shaft liquid level measuring instrument is connected with the interface of the measured position by using the connecting device, and then the shaft liquid level measuring instrument is used for measuring. The wellbore level gauge may be a conventional wellbore level gauge.
In conclusion, the connecting device can seal pipe diameters with different sizes, replaces the traditional multi-size connecting joint, can ensure quick installation and sealing, can monitor the liquid level of a shaft in time, and is simple to operate and convenient to use; the monitoring method can realize the rapid monitoring of the underground liquid level.
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 (4)
1. A connecting device for monitoring underground liquid level is characterized by comprising a connecting part, a self-adaptive sealing body and a conducting pipe, wherein,
one end of the connecting component is connected with the shaft liquid level monitor, and the other end of the connecting component is connected with the conduction pipe;
the middle part of the self-adaptive sealing body is provided with a cavity penetrating through the self-adaptive sealing body, and the self-adaptive sealing body can be arranged in the measuring position interface and seals the measured position interface;
the conducting pipe is arranged in the cavity and can conduct underground liquid level information to the shaft liquid level monitor through the connecting part.
2. The connecting device for monitoring the liquid level in the well as defined in claim 1, wherein the adaptive sealing body is in an inverted cone structure, the inclined surface of the inverted cone is in sealing fit with the interface of the measured position, and the connecting part is arranged above the inverted cone structure.
3. The downhole fluid level monitoring connection according to claim 1, wherein the adaptive seal is made of an elastomeric material.
4. A method of fluid level monitoring using the downhole fluid level monitoring connection of claim 1, the method comprising:
connecting a shaft liquid level monitor with one end of the connecting component;
putting the self-adaptive sealing body into an interface of a measured position and sealing the interface of the measured position;
downhole fluid level measurements are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911615.5A CN111894553A (en) | 2020-09-02 | 2020-09-02 | Connecting device for underground liquid level monitoring and underground liquid level monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911615.5A CN111894553A (en) | 2020-09-02 | 2020-09-02 | Connecting device for underground liquid level monitoring and underground liquid level monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894553A true CN111894553A (en) | 2020-11-06 |
Family
ID=73225000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010911615.5A Pending CN111894553A (en) | 2020-09-02 | 2020-09-02 | Connecting device for underground liquid level monitoring and underground liquid level monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894553A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202325484U (en) * | 2011-11-17 | 2012-07-11 | 北京格瑞迪斯石油技术有限公司 | Long-distance well-drilling liquid level monitoring system |
| CN202493259U (en) * | 2012-01-22 | 2012-10-17 | 北京德美高科科技有限责任公司 | Connecting device of underground liquid level monitor |
| CN203394419U (en) * | 2013-08-07 | 2014-01-15 | 中国石油化工股份有限公司 | Multifunctional rapid connection device of wellhead |
| CN208060104U (en) * | 2018-05-11 | 2018-11-06 | 安徽古井贡酒股份有限公司 | A kind of leakproofness survey tool for interior plug combined bottle cap |
| US20190323339A1 (en) * | 2016-11-30 | 2019-10-24 | Hydrophilic As | A probe arrangement for pressure measurement of a water phase inside a hydrocarbon reservoir |
| CN111894554A (en) * | 2020-09-02 | 2020-11-06 | 中国石油天然气集团有限公司 | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system |
| CN212389328U (en) * | 2020-09-02 | 2021-01-22 | 中国石油天然气集团有限公司 | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system |
-
2020
- 2020-09-02 CN CN202010911615.5A patent/CN111894553A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202325484U (en) * | 2011-11-17 | 2012-07-11 | 北京格瑞迪斯石油技术有限公司 | Long-distance well-drilling liquid level monitoring system |
| CN202493259U (en) * | 2012-01-22 | 2012-10-17 | 北京德美高科科技有限责任公司 | Connecting device of underground liquid level monitor |
| CN203394419U (en) * | 2013-08-07 | 2014-01-15 | 中国石油化工股份有限公司 | Multifunctional rapid connection device of wellhead |
| US20190323339A1 (en) * | 2016-11-30 | 2019-10-24 | Hydrophilic As | A probe arrangement for pressure measurement of a water phase inside a hydrocarbon reservoir |
| CN208060104U (en) * | 2018-05-11 | 2018-11-06 | 安徽古井贡酒股份有限公司 | A kind of leakproofness survey tool for interior plug combined bottle cap |
| CN111894554A (en) * | 2020-09-02 | 2020-11-06 | 中国石油天然气集团有限公司 | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system |
| CN212389328U (en) * | 2020-09-02 | 2021-01-22 | 中国石油天然气集团有限公司 | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212389328U (en) | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system | |
| CN111335837B (en) | Pressure-maintaining coring inner barrel for coal rock | |
| CN111878069A (en) | Composite continuous pipe cable oil-water well casing leakage finding system and method | |
| CN111894554A (en) | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system | |
| CN107489394B (en) | Open hole packer three-ellipse experimental device and method | |
| CN105257281A (en) | Method for detecting casing leakage | |
| CN103216209B (en) | Packer in tubing and casing sealing propertytest pipe | |
| CN204344115U (en) | A kind of tubing and casing looks for the omission of examination to seal system | |
| CN111894553A (en) | Connecting device for underground liquid level monitoring and underground liquid level monitoring method | |
| CN206158728U (en) | Bore oil recovery control valve pressure ga(u)ge damper | |
| CN210005075U (en) | Water leakage monitoring device for plug and working pipe in drilling water-pressing test | |
| CN204461945U (en) | A kind of device for detecting water repellent electric cable water resistance characteristic | |
| CN111272627A (en) | Well cementation cement slurry water invasion simulation evaluation instrument | |
| CN104405297B (en) | There is the segmented oil drill rocker sealing structure | |
| CN204113278U (en) | A kind of gas storage test string | |
| CN216665549U (en) | Wellhead sealing explosion-proof device | |
| CN215256158U (en) | Layered packing high-fidelity monitoring system | |
| CN207212303U (en) | A kind of efficient sealed preventer for oil field gas production | |
| CN105569623A (en) | Combined wellhead testing device for injection well and combined wellhead testing method | |
| CN104895559A (en) | Oil-gas well downhole optical fiber temperature and pressure test instrument | |
| CN202039838U (en) | Plug water separator with multiple conical indenter sections | |
| CN104373116A (en) | Online continuous monitoring sampling protecting device for external oil-water well casing pressure | |
| CN204252845U (en) | Be convenient to the segmented oil drill rocker of leakproof | |
| CN207600672U (en) | A kind of mechanical sealing system safety testing device | |
| CN207600685U (en) | A kind of dismountable device for detecting sealability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |