CN113605882A - Rock core temperature and pressure real-time acquisition device in drilling sampler - Google Patents

Rock core temperature and pressure real-time acquisition device in drilling sampler Download PDF

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Publication number
CN113605882A
CN113605882A CN202110962278.7A CN202110962278A CN113605882A CN 113605882 A CN113605882 A CN 113605882A CN 202110962278 A CN202110962278 A CN 202110962278A CN 113605882 A CN113605882 A CN 113605882A
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CN
China
Prior art keywords
pressure
temperature
end cover
core
sampler
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
Application number
CN202110962278.7A
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Chinese (zh)
Inventor
邓都都
阮海龙
赵义
陈云龙
蔡家品
贾美玲
刘智键
刘广治
梁涛
刘协鲁
郭强
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Beijing Institute of Exploration Engineering
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Beijing Institute of Exploration Engineering
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Filing date
Publication date
Application filed by Beijing Institute of Exploration Engineering filed Critical Beijing Institute of Exploration Engineering
Priority to CN202110962278.7A priority Critical patent/CN113605882A/en
Publication of CN113605882A publication Critical patent/CN113605882A/en
Pending legal-status Critical Current

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    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E21B47/07—Temperature
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil

Abstract

The invention discloses a rock core temperature and pressure real-time acquisition device in a drilling sampler, wherein a sealing cavity is formed inside an outer shell; the acquisition assembly is arranged in the sealing cavity; the acquisition assembly comprises a storage chip, an acquisition card and a sensor group which are electrically connected in sequence, and further comprises a power supply part for supplying power; memory chip with install the inside watertight joint electric connection of shell body, the watertight joint can realize the data transmission between memory chip and the data terminal. The invention can acquire and store parameters such as temperature, pressure and the like of the rock core in real time in the process of wire coring drilling sampling, and can read the acquired data through the connecting computer to know the bottom hole parameters in the process of drilling sampling in real time.

Description

Rock core temperature and pressure real-time acquisition device in drilling sampler
Technical Field
The invention relates to the technical field of drilling sampling equipment, in particular to a device for acquiring the temperature and pressure of a rock core in a drilling sampler in real time.
Background
Drilling sampling is the most direct and effective way to obtain formation parameters in the drilling field. The drilling sampling is divided into two different modes of drilling sampling and rope fishing sampling, wherein the rope fishing mode reduces the frequent drilling time, the drilling period can be effectively saved in deep wells and ultra-deep wells, and the method is a very efficient coring mode. The principle of rope salvage sampling is that an assembled drilling sampler is put to the bottom of a well through a wellhead, then drilling sampling operation is carried out, and a rock core can be collected into a special core tube by the sampler; after the core tube is fully collected, the drilling sampler is salvaged by using the rope, and the core of the stratum can be obtained.
In drilling and sampling of natural gas hydrates in high-temperature wells, high-pressure wells and sea areas on land, acquiring temperature and pressure parameters of a formation core in real time is an important aspect of acquiring in-situ formation core environment data; and the real-time understanding of the environmental state of the core plays an important role in improving the drilling and coring technological parameters and improving the drilling and sampling rate. At present, no very good way for solving the relevant problems exists in the field of drilling and coring engineering. The state of the core at the bottom of the well cannot be known, so that the research on the temperature and pressure parameters capable of collecting the core at the bottom of the well in real time is of great significance.
The well bottom environment is severe in the drilling and sampling process, the sampling condition is complex, especially in deep wells and ultra-deep wells, the well bottom temperature is high, the viscosity of drilling fluid is high, the sand content is high, and the method has high challenge to well bottom instruments and equipment; the underground pressure is high in sea area natural gas hydrate drilling, the temperature is low, the internal space of the sampler is very limited, and how to acquire and store underground environment data is difficult to achieve.
Therefore, how to provide a device capable of collecting core temperature and pressure in a drilling sampler in real time is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a device for acquiring the core temperature and pressure in a drilling sampler in real time, which aims to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a real-time collection system of rock core temperature and pressure in probing sampler installs inside wire line coring probing sampler, includes:
an outer housing; a sealing cavity is formed inside the outer shell;
a collection assembly; the collection assembly is arranged in the sealed cavity; the acquisition assembly comprises a storage chip, an acquisition card and a sensor group which are electrically connected in sequence, and further comprises a power supply part for supplying power; the storage chip is electrically connected with a watertight joint arranged inside the outer shell, and the watertight joint can realize data transmission between the storage chip and the data terminal.
Through the technical scheme, the temperature and pressure parameters of the rock core and the like can be acquired and stored in real time in the process of wire coring drilling and sampling, the acquired data can be read out through the connection computer, and the bottom hole parameters in the process of drilling and sampling can be known in real time.
Preferably, in the above drilling sampler core temperature and pressure real-time acquisition device, the outer casing includes an outer cylinder, and an upper end cover and a lower end cover which are fastened to openings at two ends of the outer cylinder by screw threads; the inner wall of the outer barrel, the upper end cover and the lower end cover form the sealing cavity; the top surface of the upper end cover is provided with a threaded hole used for being in threaded connection with the watertight connector, and the bottom surface of the upper end cover is provided with a thread hole communicated with the threaded hole. The collection assembly is convenient to install and lead out the wires.
Preferably, in the above drilling sampler core temperature and pressure real-time acquisition device, the outer shell further comprises an upper locking sleeve and a lower locking sleeve; the upper locking sleeve is fixedly sleeved at the top end of the outer barrel and tightly props against the upper end cover; the lower locking sleeve is fixedly sleeved at the bottom end of the outer barrel and tightly pushes the lower end cover. The stability of end cover connection can be improved.
Preferably, in the above drilling sampler core temperature and pressure real-time acquisition device, the outer shell further comprises an upper joint; the upper joint is fixedly connected with the top end of the upper locking sleeve in an inserting mode, and a conduit is arranged at the top end of the upper joint. The watertight joint can be protected.
Preferably, in the above apparatus for collecting temperature and pressure of a core in a drilling sampler in real time, the collecting assembly further comprises a support frame; two ends of the support frame are respectively fixedly inserted into the upper end cover and the lower end cover; the power supply part, the storage chip and the acquisition card are all fixed on the support frame. The connection and fixation of the acquisition assembly are convenient to realize.
Preferably, in the above drilling sampler core temperature and pressure real-time acquisition device, the power supply unit includes a battery rack and a battery; the battery rack is fixed on the support frame, and an internal circuit of the battery rack is electrically connected with the storage chip, the acquisition card and the sensor group through wires respectively; the battery is mounted in the battery holder. Can ensure a neat and uniform connecting structure.
Preferably, in the above device for collecting core temperature and pressure in a drilling sampler in real time, the sensor group is fixed to the lower end cover in a clamping manner. The connection and fixation are convenient, and the space is reasonably configured.
Preferably, in the above real-time core temperature and pressure acquisition device in a drilling sampler, the sensor group includes a temperature sensor and a pressure sensor. The data acquisition of temperature and pressure can be realized.
Preferably, in the above device for acquiring the temperature and pressure of the core in the drilling sampler in real time, the data terminal is a computer or a mobile phone. Data transmission, storage and analysis can be realized.
Preferably, in the above device for acquiring the core temperature and pressure in the drilling sampler in real time, after the memory chip and the data terminal complete one-time data transmission, the memory chip flash is removed. And the next data acquisition is convenient.
According to the technical scheme, compared with the prior art, the invention discloses and provides a device for acquiring the temperature and the pressure of the core in the drilling sampler in real time, which is arranged in the drilling sampler and is put down to the well bottom together with the sampler, and comprises a group of temperature sensors and pressure sensors, so that the temperature and the pressure of the surrounding environment can be detected in real time and transmitted to a storage chip of an acquisition assembly for storage; when the drilling sampler is recovered from the well bottom, the collected temperature and pressure data can be read out through a computer, and the environmental parameters of the well bottom in the whole coring operation process can be known in real time through data analysis.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an external structure of a core temperature and pressure real-time acquisition device provided by the invention;
FIG. 2 is a schematic structural diagram of an outer barrel provided by the invention;
FIG. 3 is a schematic diagram of the internal structure of a capsule according to the present invention;
FIG. 4 is a schematic structural view of a watertight joint according to the present invention;
FIG. 5 is a schematic view of an upper locking collar of the present invention;
FIG. 6 is a schematic view of the lower locking collar of the present invention;
FIG. 7 is a schematic structural view of a top sub according to the present invention;
fig. 8 is a sectional view of the core temperature and pressure real-time acquisition device provided by the invention.
Wherein:
1-an outer shell;
11-a sealed cavity; 12-watertight joints; 13-an outer barrel; 14-upper end cap; 141-a threaded hole; a 142-wire hole; 15-lower end cap; 16-upper locking sleeve; 17-lower locking sleeve; 18-upper joint; 181-conduit;
2-a collection assembly;
21-a memory chip; 22-acquisition card; 23-a sensor group; 24-a power supply section; 241-a battery holder; 242-a battery; 25-support frame.
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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the accompanying drawings 1 to 8, the embodiment of the invention discloses a device for acquiring the temperature and pressure of a core in a drilling sampler in real time, which is arranged in a wire-line core drilling sampler and comprises:
an outer shell 1; a sealing cavity 11 is formed inside the outer shell 1;
a collection assembly 2; the acquisition assembly 2 is arranged in the sealed cavity 11; the acquisition component 2 comprises a storage chip 21, an acquisition card 22 and a sensor group 23 which are electrically connected in sequence, and further comprises a power supply part 24 for supplying power; the memory chip 21 is electrically connected to the watertight connector 12 installed inside the outer casing 1, and the watertight connector 12 can realize data transmission between the memory chip 21 and the data terminal.
In order to further optimize the above technical solution, the outer shell 1 comprises an outer cylinder 13, and an upper end cover 14 and a lower end cover 15 which are screwed and fastened on the two ends of the outer cylinder 13 and are opened; the inner wall of the outer cylinder 13, the upper end cover 14 and the lower end cover 15 form a sealing cavity 11; the top surface of the upper end cover 14 is formed with a threaded hole 141 for screw connection with the watertight connector 12, and the bottom surface of the upper end cover 14 is opened with a thread hole 142 communicated with the threaded hole 141.
In order to further optimize the above technical solution, the outer shell 1 further comprises an upper locking sleeve 16 and a lower locking sleeve 17; the upper locking sleeve 16 is fixedly sleeved at the top end of the outer cylinder 13 and tightly props against the upper end cover 14; the lower locking sleeve 17 is fixedly sleeved at the bottom end of the outer cylinder 13 and tightly pushes against the lower end cover 15.
In order to further optimize the above technical solution, the outer shell 1 further comprises an upper joint 18; the upper connector 18 is fixed to the top end of the upper locking sleeve 16, and has a conduit 181 at the top end.
In order to further optimize the above technical solution, the collecting assembly 2 further comprises a supporting frame 25; two ends of the supporting frame 25 are respectively inserted and fixed with the upper end cover 14 and the lower end cover 15; the power supply unit 24, the memory chip 21 and the acquisition card 22 are fixed on the support frame 25.
In order to further optimize the above technical solution, the power supply part 24 includes a battery holder 241 and a battery 242; the battery rack 241 is fixed on the support frame 25, and the internal circuit of the battery rack 241 is electrically connected with the storage chip 21, the acquisition card 22 and the sensor group 23 through wires respectively; the battery 242 is mounted in the battery holder 241.
In order to further optimize the above technical solution, the sensor group 23 is clamped and fixed on the lower end cover 15.
In order to further optimize the above solution, the sensor group 23 comprises a temperature sensor and a pressure sensor.
In order to further optimize the technical scheme, the data terminal is a computer or a mobile phone.
In order to further optimize the above technical solution, after the memory chip 21 and the data terminal complete one data transmission, the memory chip 21flash is cleared.
The working method of the device for collecting the temperature and pressure of the core in the drilling sampler in real time provided by the embodiment comprises the following steps:
step 1, assembling an acquisition device, connecting a computer, uploading an acquisition program to a storage chip 21, performing a temperature and pressure calibration test, and recording test data;
step 2, mounting the acquisition device on a drilling sampler, putting the sampler into the bottom of a well through the well mouth, and starting drilling sampling operation;
step 3, after sampling is finished, disassembling the sampler by fishing the sampler through a rope, taking out the collecting device, and checking the use condition of the collecting device;
step 4, connecting a computer, collecting data, analyzing the data, storing the data, and clearing the memory chip 21 flash;
and 5, mounting the drilling sampler on the drill sampler to prepare for next sampling.
The working principle of the device for collecting the temperature and pressure of the core in the drilling sampler in real time is as follows: the acquisition device is installed in the sampler, when the sampler reaches the well bottom, the sensor group 23 acquires temperature and pressure data of the well bottom in real time and transmits the data to the memory chip 21 through a lead, the memory chip 21 can store the data, and the system provides energy through the battery 242. After the sampler is fished out from the well bottom, the data stored in the storage chip 21 can be transmitted to a computer through the watertight connector 12, so that the fact that the underground sampling operation is the actual temperature and pressure parameters of the well bottom can be known.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a real-time collection system of rock core temperature and pressure in probing sampler which characterized in that installs inside the wire line coring probing sampler, includes:
an outer casing (1); a sealing cavity (11) is formed inside the outer shell (1);
a collection assembly (2); the collection assembly (2) is arranged in the sealed cavity (11); the acquisition assembly (2) comprises a storage chip (21), an acquisition card (22) and a sensor group (23) which are electrically connected in sequence, and further comprises a power supply part (24) for supplying electric power; the storage chip (21) is electrically connected with a watertight joint (12) arranged inside the outer shell (1), and the watertight joint (12) can realize data transmission between the storage chip (21) and a data terminal.
2. The device for collecting the temperature and pressure of the core in the drilling sampler in real time is characterized in that the outer shell (1) comprises an outer cylinder (13), and an upper end cover (14) and a lower end cover (15) which are fastened on two ends of the outer cylinder (13) in a threaded manner; the inner wall of the outer cylinder (13), the upper end cover (14) and the lower end cover (15) form the sealing cavity (11); a threaded hole (141) used for being in threaded connection with the watertight connector (12) is formed in the top surface of the upper end cover (14), and a thread hole (142) communicated with the threaded hole (141) is formed in the bottom surface of the upper end cover (14).
3. The device for collecting the temperature and pressure of the core in the drilling sampler in real time is characterized in that the outer shell (1) further comprises an upper locking sleeve (16) and a lower locking sleeve (17); the upper locking sleeve (16) is fixedly sleeved at the top end of the outer cylinder (13) and tightly props against the upper end cover (14); the lower locking sleeve (17) is fixedly sleeved at the bottom end of the outer barrel (13) and tightly pushes the lower end cover (15).
4. A real-time core temperature and pressure acquisition device in a drilling sampler according to claim 3, characterized in that the outer casing (1) further comprises an upper joint (18); the upper joint (18) is fixedly inserted into the top end of the upper locking sleeve (16), and the top end of the upper joint is provided with a conduit (181).
5. The device for collecting temperature and pressure of the core in the drilling sampler in real time is characterized in that the collecting assembly (2) further comprises a supporting frame (25); two ends of the support frame (25) are respectively inserted and fixed with the upper end cover (14) and the lower end cover (15); the power supply part (24), the storage chip (21) and the acquisition card (22) are all fixed on the support frame (25).
6. The device for collecting the temperature and pressure of the core in the drilling sampler in real time is characterized in that the power supply part (24) comprises a battery rack (241) and a battery (242); the battery rack (241) is fixed on the support frame (25), and an internal circuit of the battery rack (241) is electrically connected with the storage chip (21), the acquisition card (22) and the sensor group (23) through wires respectively; the battery (242) is mounted within the battery holder (241).
7. The device for collecting the temperature and pressure of the core in the drilling sampler in real time is characterized in that the sensor group (23) is clamped and fixed on the lower end cover (15).
8. The device for collecting the temperature and the pressure of the core in the drilling sampler in real time is characterized in that the sensor group (23) comprises a temperature sensor and a pressure sensor.
9. The device for collecting the temperature and pressure of the core in the drilling sampler in real time as claimed in claim 1, wherein the data terminal is a computer or a mobile phone.
10. The device for collecting the temperature and pressure of the core in the drilling sampler in real time as claimed in claim 1, wherein the memory chip (21) flash is cleared after the memory chip (21) and the data terminal complete one-time data transmission.
CN202110962278.7A 2021-08-20 2021-08-20 Rock core temperature and pressure real-time acquisition device in drilling sampler Pending CN113605882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110962278.7A CN113605882A (en) 2021-08-20 2021-08-20 Rock core temperature and pressure real-time acquisition device in drilling sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110962278.7A CN113605882A (en) 2021-08-20 2021-08-20 Rock core temperature and pressure real-time acquisition device in drilling sampler

Publications (1)

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CN113605882A true CN113605882A (en) 2021-11-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116399638A (en) * 2023-04-04 2023-07-07 深圳大学 Undisturbed soil sampling and preserving system and undisturbed soil sampling and preserving method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116399638A (en) * 2023-04-04 2023-07-07 深圳大学 Undisturbed soil sampling and preserving system and undisturbed soil sampling and preserving method
CN116399638B (en) * 2023-04-04 2024-02-06 深圳大学 Undisturbed soil sampling and preserving device and undisturbed soil sampling and preserving method

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