CN113445995A - Temperature testing device used in cooperation with temporary plugging agent - Google Patents

Temperature testing device used in cooperation with temporary plugging agent Download PDF

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Publication number
CN113445995A
CN113445995A CN202110964658.4A CN202110964658A CN113445995A CN 113445995 A CN113445995 A CN 113445995A CN 202110964658 A CN202110964658 A CN 202110964658A CN 113445995 A CN113445995 A CN 113445995A
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CN
China
Prior art keywords
thread
temperature
temporary plugging
plugging agent
module
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Pending
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CN202110964658.4A
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Chinese (zh)
Inventor
曾从良
李小刚
李裕民
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Southwest Petroleum University
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Southwest Petroleum University
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Priority to CN202110964658.4A priority Critical patent/CN113445995A/en
Publication of CN113445995A publication Critical patent/CN113445995A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure
    • E21B47/07Temperature
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/134Bridging plugs

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The invention discloses a temperature testing device matched with a temporary plugging agent for use, relates to the technical field of temporary plugging agents, and aims at solving the problems that the existing oil well is relatively complicated in measurement work, and a temporary plugging agent squeezing device and a temperature measuring device are separately arranged, so that the plugging cost is increased. The fracturing plugging device is novel in structure, the device is not required to be hydraulically driven twice to send the device into a well, plugging cost is reduced, and meanwhile, the temperature measuring device is not required to be taken out back and forth and then fracturing plugging is carried out, so that the fracturing plugging is convenient and fast, and the fracturing plugging device is convenient to use.

Description

Temperature testing device used in cooperation with temporary plugging agent
Technical Field
The invention relates to the technical field of temporary plugging agents, in particular to a temperature testing device matched with a temporary plugging agent for use.
Background
Under the high-temperature condition, the crystallization conditions of poly-L-lactic acid and poly-D-lactic acid are optimized, the crystallization efficiency is improved, and the formation of a crystal structure is promoted by adding an auxiliary agent to form a high-temperature temporary plugging agent system.
Under the condition of medium temperature, a chain extender of an active group is added in the process of synthesizing the temporary plugging agent, so that the temperature resistance is improved, and meanwhile, a nano inorganic material is added, so that the mixing process is improved, and the mechanical strength and the temperature resistance of the material are further improved.
Under the condition of low temperature, the polymer structure is changed, the branched chain is added to reduce the dissolution speed and improve the strength, and the functional monomer and the coupling agent are introduced in the process of synthesizing the temporary plugging agent to improve the strength of the polymer.
The existing temporary plugging agent is used for directly measuring the infrared temperature of an oil well, a measuring device is taken out after the measurement is finished, then the temporary plugging agent is selected according to the measured pressure and temperature values, and then the temporary plugging agent is extruded at a fracturing position of the oil well for temporary plugging through an ash extrusion bridge plug, a plugging tool, an ash extrusion tool and a fishing tool, so that the plugging work is complicated, and the temporary plugging agent extrusion device and the temperature measuring device are separately arranged, so that the plugging cost is increased.
Disclosure of Invention
The temperature testing device matched with the temporary plugging agent solves the problems that the plugging work of an oil well is complicated, and the plugging cost is increased because the temporary plugging agent squeezing device and the temperature measuring device are arranged separately.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a temperature test device that cooperation temporary plugging agent used, includes sitting and seals bridge plug mechanism and temperature measurement mechanism, the circumference lateral wall that the temperature measurement mechanism cover was established at sitting and is sealed bridge plug mechanism, and temperature measurement mechanism is used for measuring the inside temperature of oil well body, one side of sitting and sealing bridge plug mechanism is provided with crowded grey instrument, crowded grey instrument is used for inserting the inside of sitting and sealing bridge plug mechanism and carries temporary plugging agent.
Preferably, the bridge plug setting mechanism comprises a dust guide hopper, a shell, a bridge plug, a limiting block, a thread limiting groove and a first thread, wherein the dust guide hopper is positioned at the bottom end of the shell.
Preferably, the thread limiting groove and the first thread are located on the circumferential side wall of the shell, the first thread is located at the top end of the thread limiting groove, the bridge plug is located at the top end of the shell, the bottom end of the bridge plug extends into the shell, and the dust squeezing tool is matched with a setting bridge plug mechanism for separating the bridge plug from the shell.
Preferably, the temperature measuring mechanism comprises a thread fixing cover, a protective shell, a second thread, a first thread groove, a second thread groove, a temperature detecting module, a pressure detecting module, a power supply module and a data transmission module.
Preferably, the inside of protective housing is cavity setting, just temperature detection module is located the top of pressure detection module, data transmission module is located power module's bottom, just temperature detection module, pressure detection module and data transmission module all with power module electric connection.
Preferably, the first thread groove is located on the inner wall of the protective shell, the first thread groove is matched with the first threads, the second threads are located on the circumferential side wall of the protective shell, the second threads are matched with the thread limiting groove, the thread fixing cover is located at the top end of the protective shell, and the second thread groove in the thread fixing cover is matched with the first threads.
The invention has the beneficial effects that:
1. through installing temperature measurement mechanism at the lateral wall of setting bridge plug mechanism for setting bridge plug mechanism drives temperature measurement mechanism and moves downwards, thereby need not carry out twice hydraulic drive and send the device into the well, has reduced the shutoff cost.
2. Drive temperature measurement mechanism through sitting and seal bridge plug mechanism and carry out the fracturing shutoff by end department to the top to one to need not make a round trip to take out temperature measurement device, then carry out the fracturing shutoff, make the fracturing shutoff comparatively convenient.
To sum up, the device need not carry out twice hydraulic drive and sends the device into the well, has reduced the shutoff cost, need not make a round trip to take out temperature measuring device simultaneously, then carries out the fracturing shutoff for the fracturing shutoff is comparatively convenient, facilitates the use.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the split structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the temperature measuring mechanism of the present invention.
Reference numbers in the figures: 1. a bridge plug setting mechanism; 101. a dust guide hopper; 102. a housing; 103. probing a bridge plug; 104. a limiting block; 105. a thread limiting groove; 106. a first thread; 2. an oil well body; 3. a dust squeezing tool; 4. a temperature measuring mechanism; 401. a screw thread fixing cover; 402. a protective shell; 403. a second thread; 404. a first thread groove; 405. a second thread groove; 406. a temperature detection module; 407. a pressure detection module; 408. a power supply module; 409. and a data transmission module.
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.
Referring to fig. 1-3, a temperature testing device that cooperation temporary plugging agent used, includes setting bridge plug mechanism 1 and temperature measurement mechanism 4, the circumference lateral wall of setting bridge plug mechanism 1 is established to temperature measurement mechanism 4 cover, and temperature measurement mechanism 4 is used for measuring the inside temperature of oil well body 2, one side of setting bridge plug mechanism 1 is provided with crowded grey instrument 3, crowded grey instrument 3 is used for inserting the inside transport temporary plugging agent of setting bridge plug mechanism 1.
As shown in fig. 1 and fig. 2, the setting bridge plug mechanism 1 includes a dust guide bucket 101, a housing 102, a bridge plug 103, a limiting block 104, a thread limiting groove 105 and a first thread 106, the dust guide bucket 101 is located at the bottom end of the housing 102, the thread limiting groove 105 and the first thread 106 are located on the circumferential side wall of the housing 102, the first thread 106 is located at the top end of the thread limiting groove 105, the bridge plug 103 is located at the top end of the housing 102, the bottom end of the bridge plug 103 extends into the housing 102, and the dust squeezing tool 3 is matched with the setting bridge plug mechanism 1 in which the bridge plug 103 is separated from the housing 102.
As shown in fig. 2 and 3, the temperature measuring mechanism 4 includes a screw fixing cover 401, a protective shell 402, a second screw 403, a first screw groove 404, a second screw groove 405, a temperature detecting module 406, a pressure detecting module 407, a power supply module 408, and a data transmitting module 409.
As shown in fig. 3, the inside of the protective shell 402 is hollow, the temperature detection module 406 is located at the top end of the pressure detection module 407, the data transmission module 409 is located at the bottom end of the power supply module 408, and the temperature detection module 406, the pressure detection module 407, and the data transmission module 409 are all electrically connected to the power supply module 408.
As shown in fig. 2, the first thread groove 404 is located on the inner wall of the protective shell 402, the first thread groove 404 is matched with the first thread 106, the second thread 403 is located on the circumferential side wall of the protective shell 402, the second thread 403 is matched with the thread limiting groove 105, the thread fixing cover 401 is located at the top end of the protective shell 402, and the second thread groove 405 inside the thread fixing cover 401 is matched with the first thread 106.
Example 1: when the device is used, the setting bridge plug mechanism 1 is firstly assembled, after the assembly is finished, a protective shell 402 in a temperature measuring mechanism 4 is sleeved on the circumferential side wall of the shell 102 outside the setting bridge plug mechanism 1, then the protective shell 402 is rotated to enable a first thread groove 404 in the protective shell 402 to rotate to move downwards in a first thread 106, then the bottom end of the protective shell 402 is clamped in a thread limiting groove 105, the protective shell 402 is limited through a limiting block 104 to prevent the protective shell 402 from moving downwards, meanwhile, a thread fixing cover 401 penetrates through the shell 102 to be connected with the protective shell 402, and the thread fixing cover 401 is rotated to enable the thread fixing cover 401 to rotate on the first thread 106 on the side wall of the shell 102, so that the top of the protective shell 402 is limited through the thread fixing cover 401;
after the device is assembled, the device is sent into the oil well body 2 through hydraulic pressure or a cable, the device stops moving when reaching the fracturing position of the oil well, then the temperature and the pressure in the well are measured through a temperature detection module 406 and a pressure detection module 407, the measured data are transmitted to a control room through a data transmission module 409, then temporary plugging agents with different temperatures are selected and adapted according to the data transmitted to the control room, then steel balls are put in, the balls sink to the position and are subjected to oil pipe pressurization, an inner piston in the bridge setting and sealing mechanism 1 pushes a setting joint to move downwards, so that a bridge detection plug 103 in the bridge setting and sealing mechanism 1 is separated, after the separation is finished, a dust squeezing tool 3 is put in, the dust squeezing tool 3 extends into the bridge setting and sealing mechanism 1, then the temporary plugging agents are squeezed into a dust guide hopper 101, then the temporary plugging agents are squeezed out through the dust guide hopper 101, then the temporary plugging agents are diffused to temporarily plug the fracturing position of the oil well, the device slowly moves upwards afterwards and selects another oil well fracturing department to carry out temperature measurement and carry out temporary plugging to need not take out temperature measuring device and just can directly carry out the shutoff, improved shutoff efficiency, make the shutoff comparatively simple.
Example 2: simultaneously can install the top of protective housing 402 down for second screw thread 403 carries out threaded connection with screw thread spacing groove 105, then installs screw thread fixing cover 401 at the lateral wall of casing 102 through the inside second screw thread 405 of screw thread fixing cover 401 and first screw thread 106, thereby spacing the bottom of protective housing 402, can measure afterwards.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. The utility model provides a temperature test device that cooperation temporary plugging agent used, includes sitting and sealing bridge plug mechanism (1) and temperature measurement mechanism (4), its characterized in that, the circumference lateral wall of sitting and sealing bridge plug mechanism (1) is established in temperature measurement mechanism (4), and temperature measurement mechanism (4) are used for measuring the inside temperature of oil well body (2), one side of sitting and sealing bridge plug mechanism (1) is provided with crowded grey instrument (3), crowded grey instrument (3) are used for inserting the inside of sitting and sealing bridge plug mechanism (1) and carry temporary plugging agent.
2. The temperature testing device matched with the temporary plugging agent for use according to claim 1, wherein the setting bridge plug mechanism (1) comprises a dust guide hopper (101), a shell (102), a bridge plug (103), a limiting block (104), a thread limiting groove (105) and a first thread (106), and the dust guide hopper (101) is positioned at the bottom end of the shell (102).
3. The temperature testing device used in combination with the temporary plugging agent according to claim 2, wherein the thread limiting groove (105) and the first thread (106) are located on the circumferential side wall of the housing (102), the first thread (106) is located at the top end of the thread limiting groove (105), the bridge probe plug (103) is located at the top end of the housing (102), the bottom end of the bridge probe plug (103) extends into the interior of the housing (102), and the dust squeezing tool (3) is matched with the bridge setting plug mechanism (1) of the bridge probe plug (103) separated from the housing (102).
4. The temperature testing device used in combination with the temporary plugging agent according to claim 1, wherein said temperature measuring mechanism (4) comprises a screw thread fixing cover (401), a protective shell (402), a second screw thread (403), a first screw thread groove (404), a second screw thread groove (405), a temperature detecting module (406), a pressure detecting module (407), a power supply module (408) and a data transmission module (409).
5. The temperature testing device used in combination with the temporary plugging agent according to claim 4, wherein the interior of the protective shell (402) is hollow, the temperature detecting module (406) is located at the top end of the pressure detecting module (407), the data transmitting module (409) is located at the bottom end of the power supply module (408), and the temperature detecting module (406), the pressure detecting module (407) and the data transmitting module (409) are all electrically connected to the power supply module (408).
6. The temperature testing device used in combination with the temporary plugging agent according to claim 4, wherein said first thread groove (404) is located on the inner wall of the protective shell (402), said first thread groove (404) is matched with the first thread (106), said second thread (403) is located on the circumferential side wall of the protective shell (402), said second thread (403) is matched with the thread limiting groove (105), said thread fixing cover (401) is located on the top end of the protective shell (402), and said second thread groove (405) inside the thread fixing cover (401) is matched with the first thread (106).
CN202110964658.4A 2021-08-19 2021-08-19 Temperature testing device used in cooperation with temporary plugging agent Pending CN113445995A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115012876A (en) * 2022-07-01 2022-09-06 西南石油大学 Small-diameter large-deformation single-slip type soluble bridge plug

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115012876A (en) * 2022-07-01 2022-09-06 西南石油大学 Small-diameter large-deformation single-slip type soluble bridge plug
CN115012876B (en) * 2022-07-01 2023-08-11 西南石油大学 Small-diameter large-deformation single slip type soluble bridge plug

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Application publication date: 20210928