CN114165221A - Horizontal well multi-point distributed temperature logging device and monitoring method - Google Patents
Horizontal well multi-point distributed temperature logging device and monitoring method Download PDFInfo
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- CN114165221A CN114165221A CN202010958265.8A CN202010958265A CN114165221A CN 114165221 A CN114165221 A CN 114165221A CN 202010958265 A CN202010958265 A CN 202010958265A CN 114165221 A CN114165221 A CN 114165221A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 114
- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 210000002445 nipple Anatomy 0.000 claims description 18
- 238000009529 body temperature measurement Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000011161 development Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a horizontal well multipoint distributed temperature logging device and a monitoring method, the device comprises a plurality of probe assembling units, the performance structures of the plurality of probe assembling units are the same, the plurality of probe assembling units are uniformly distributed in the whole horizontal measuring section to measure the multipoint temperature of a horizontal well, each probe assembling unit comprises an oil pipe, an oil pipe coupling, a special instrument hanger and a temperature measuring probe, the oil pipe is a conveying main body of the temperature measuring probe, the temperature measuring probe is conveyed to the horizontal measuring section, the temperature measuring probe carries out real-time continuous temperature change trend measurement, the special instrument hanger is connected with the temperature measuring probe, and the temperature measuring probe is hung in the oil pipe coupling by the special instrument hanger and is lowered into the horizontal measuring section along with the oil pipe. The horizontal well multi-point distributed temperature logging device and the monitoring method are high in operability, safe, reliable, high in testing success rate, small in cost investment and capable of enabling each temperature measuring probe to work independently.
Description
Technical Field
The invention relates to the technical field of oil field development, in particular to a horizontal well multipoint distributed temperature logging device and a monitoring method.
Background
The horizontal well mainly improves the yield and the recovery ratio of an oil well by enlarging the oil drainage area. In the production process, the problems of uneven overall utilization, side water inrush, bottom water coning and violent flooding caused by side water inrush and the like exist in the thick oil thermal recovery horizontal well section, once local flooding occurs, the water content of the whole well rises sharply, and the development effect of the thick oil horizontal well is seriously influenced. The horizontal well has the problems of uneven use, unclear main production layer section, difficulty in identifying the position of a high water-cut layer section and the like. The temperature and pressure of the horizontal well in the production process are measured in real time, and a powerful technical support is provided for efficient development of the horizontal well. Particularly, the measurement of the variation trend of the temperature field and the pressure field of the thickened oil steam injection huff and puff horizontal well facilitates the evaluation of the overall utilization condition of the horizontal measurement section, guides the adjustment of the steam injection position and the steam injection amount, and improves the development effect of the horizontal well.
In the application No.: chinese patent application CN201610754685.8 relates to a distributed temperature testing system and method for hot dry rock deep wells. The system comprises a distributed optical fiber temperature acquisition device, a logging winch, a well descending device and a temperature measurement optical cable; the distributed optical fiber temperature acquisition device is used for acquiring the temperature along the temperature measuring optical cable and processing data; the logging winch is used for storing and transporting the temperature measuring optical cable and also used for providing power sources for the depth fixing, the constant speed well descending and the cable collection of the temperature measuring optical cable; the well descending device is used for realizing mechanical fixing and guiding of temperature measuring optical cables during well descending and cable collection; the temperature measuring optical cable is a temperature sensing element and a data transmission channel. The above patent adopts an optical fiber direct reading mode measurement mode, is used for measuring the distributed temperature of the hot dry rock vertical well, and cannot be used for measuring the horizontal measurement section of the horizontal well by the tripping of a logging winch. And the optical fiber has high cost and investment and poor dynamic sealing performance.
In the application No.: CN201420082293.8, a chinese patent application, relates to a distributed well temperature measuring device, which comprises a control host and a plurality of well temperature measuring probes, wherein the plurality of well temperature measuring probes are connected with a bus interface of the control host through a single bus; the control host comprises a storage unit, a man-machine interface unit, an RS232 communication unit and a microcontroller unit, wherein the storage unit, the man-machine interface unit and the RS232 communication unit are respectively connected with the microcontroller unit. The above patent is mainly used for detecting seismic exploration activities, and the so-called distributed mode is a mode formed by connecting single-borehole or single-well ground conductors, is only used for measurement in a straight borehole or a straight well, and cannot be applied to measurement of a special well body structure of a horizontal well. And each probe can not form an individual independently, and can not independently acquire and transmit data.
The existing single-point temperature logging technology has serious defects: the measurement from the beginning to the end of the horizontal segment is not carried out under the same time condition, and the lag error of 2-4 hours exists in the temperature change of the beginning and the end, which brings great difficulty to the analysis. The invention provides a novel horizontal well multi-point distributed temperature logging device and a monitoring method, and solves the technical problems of horizontal well temperature profile testing and the like by combining the difficult problem of horizontal well testing and starting from technical feasibility, special well body structure characteristics of a horizontal well and economical objectivity and practicability.
Disclosure of Invention
The invention aims to provide a horizontal well multipoint distributed temperature logging device and a monitoring method aiming at the serious defects and the technical blank in the prior art.
The object of the invention can be achieved by the following technical measures: the horizontal well multi-point distributed temperature logging device comprises a plurality of probe assembling units, wherein the performance structures of the probe assembling units are the same, the probe assembling units are uniformly distributed in the whole horizontal measurement section to measure the multi-point temperature of a horizontal well, each probe assembling unit comprises an oil pipe, an oil pipe coupling, a special instrument hanger and a temperature measurement probe, the oil pipe is connected to the upper end of the oil pipe coupling and is a conveying main body of the temperature measurement probe, the temperature measurement probe is conveyed to the horizontal measurement section, the temperature measurement probe carries out real-time continuous temperature change trend measurement, the special instrument hanger is connected with the temperature measurement probe, and the temperature measurement probe is hung in the oil pipe coupling by means of the special instrument hanger and enters the horizontal measurement section along with the oil pipe.
The object of the invention can be achieved by the following technical measures:
the probe assembly unit also comprises a screen pipe nipple which is connected to the lower end of the tubing coupling, and a plurality of holes are reserved on the pipe wall of the screen pipe nipple so as to rapidly transfer the formation temperature.
The number N of the probe assembling units is equal to the length of a horizontal segment/(the length of each oil pipe + the length of a screen pipe short section).
The temperature measuring probes are respectively represented by T1-TN in 1-N numbers, and each temperature measuring probe is numbered down the well in sequence, namely T1, T2 and T3 … TN numbers.
The object of the invention can also be achieved by the following technical measures:
the monitoring method of the horizontal well multipoint distributed temperature logging adopts a horizontal well multipoint distributed temperature logging device, and comprises the following steps: step 1, setting the total working time of a temperature measuring probe, a data sampling interval and the initial unified working time; step 2, connecting the temperature measuring probe with a special instrument hanger; step 3, connecting the screen pipe nipple with the tubing coupling, and placing the special hanger for the instrument connected with the temperature measuring probe in the tubing coupling; step 4, analogizing in sequence, connecting according to the serial number sequence of the temperature measuring probes, putting the temperature measuring probes into the whole horizontal section along with an oil pipe, and starting logging along the well shaft of the horizontal well in a distributed arrangement mode; step 5, statically measuring a temperature change trend line for 5-6 hours; and 6, after the measurement is finished, taking out each temperature measurement probe along with the oil pipe, carrying out data playback on the ground, carrying out data preprocessing, and generating a plurality of temperature trend result curves which correspond to the depth and change along with time.
The invention relates to a horizontal well multipoint distributed temperature logging device and a monitoring method. And conveying a plurality of temperature measuring probes to the whole horizontal measuring section through a plurality of oil pipes to complete the measurement of the change trend of the temperature field of the horizontal section of the horizontal well. The temperature measuring probe is connected with a special instrument hanger and hung at the tubing coupling, and the lower end of the tubing coupling is connected with a sieve tube short joint so that the formation temperature is quickly transmitted to the temperature measuring probe. The upper end of the tubing coupling is connected with a common tubing to realize the installation of a single temperature measuring probe. And by analogy, the plurality of temperature measuring probes are sequentially distributed and arranged in the whole horizontal measuring section, and the well logging is carried out along the well axis of the horizontal well in a distributed arrangement mode. After the measurement is finished, the measured data are automatically spliced by using independently developed interpretation and analysis software, N temperature change trend lines are automatically generated, the temperature change trend rule is analyzed, the main productive layer section and the non-used section of the horizontal well are found out, the horizontal well section is guided to be used for profile control in a balanced mode, and the efficient development effect of the horizontal well is improved.
The horizontal well multi-point distributed temperature logging device and the monitoring method continuously measure the change rule of the formation temperature of the horizontal measurement section in real time along with the descending of an oil pipe, realize the accurate analysis and evaluation of the overall utilization condition of the horizontal well, guide the implementation of measures such as the optimization adjustment of the steam injection position in the lower period, water shutoff profile control and the like, and improve the development effect of the horizontal well. The invention has the advantages of novel technology, strong operability, safety, reliability, high test success rate, independent work of each temperature measurement probe and low cost investment.
Drawings
FIG. 1 is a schematic diagram of a single probe assembly structure of the horizontal well multi-point distributed temperature logging apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a hanger of a special instrument of the horizontal well multipoint distributed temperature logging device of the invention;
fig. 3 is a schematic diagram of a field test installation structure of the horizontal well multi-point distributed temperature logging device of the invention.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Fig. 1 is a schematic diagram of a single probe assembly structure of the horizontal well multi-point distributed temperature logging device of the invention. The horizontal well multi-point distributed temperature logging device is composed of an oil pipe 1, an oil pipe coupling 2, a special instrument hanger 3, a temperature measuring probe 4 and a screen pipe nipple 5. The temperature measuring probes 4 are a plurality of probes with the same performance structure and are uniformly distributed on the whole horizontal measuring section.
The oil pipe 1 is a conveying main body of the temperature measuring probes 4, the plurality of temperature measuring probes 4 are conveyed to the whole horizontal measuring section by the oil pipes 1, and the temperature measuring probes 4 are sequentially arranged according to the T1-TN sequence to continuously measure the temperature change trend in real time. The temperature measuring probes 1-N are respectively represented by T1-TN.
The special instrument hanger 3 is connected with the temperature measuring probe 4, the temperature measuring probe 4 is suspended in the tubing coupling 2 by means of the hanger 3 and is lowered into the horizontal section along with the tubing 1, and real-time continuous monitoring of the temperature variation trend of the horizontal section is achieved. The instrument is shockproof, safe and reliable.
After the measurement is finished, the plurality of temperature measurement probes 4 perform data playback and splicing processing through special test analysis software, are used for measuring the change rule of the temperature field of the horizontal measurement section, evaluate the overall utilization condition of the horizontal measurement section and guide the efficient development of the horizontal well;
the screen nipple 5 is used for rapid transfer of formation temperature. The screen pipe nipple 5 is mainly characterized in that a plurality of holes are reserved on the pipe wall of the screen pipe nipple, a nearest communication channel is formed between the holes and the stratum, and the temperature of liquid outside the oil pipe and the temperature of fluid inside the oil pipe form rapid exchange balance, so that a temperature test probe installed inside the screen pipe can test the temperature of the stratum outside the oil pipe in a short time.
The working time and the data sampling interval are preset on the ground by a single storage type temperature measuring probe 4, the length of the oil pipe 1 is accurately measured according to the well descending sequence, the temperature measuring probe 4 is connected to the special instrument hanger 3 according to the numbering sequence, the connected special instrument hanger 3 and the temperature measuring probe 4 are placed in the oil pipe coupling 2 and are connected with the screen pipe nipple 5, and the installation of the temperature measuring probe is completed.
As shown in fig. 3, fig. 3 is a schematic view of a field test installation structure of the horizontal well multi-point distributed temperature logging device of the present invention. TI … TN indicates that there are N temperature measuring probes 4, the number of temperature measuring probes 4 being determined according to the length of the interval of the test well: the number of the temperature measuring probes is equal to the length of a horizontal section/(the length of each oil pipe + the length of a screen pipe nipple), the horizontal well sections with different lengths use different numbers of the temperature measuring probes 4, each temperature measuring probe 4 is numbered according to the sequence and is put into the well, namely T1, T2 and T3 … TN are numbered, the N temperature measuring probes 4 work independently, no connecting line is arranged between the N temperature measuring probes 4, before the temperature measuring probes are put into the well, the working time and the sampling interval are preset on the ground for the N temperature measuring probes 4, and the N temperature measuring probes 4 are enabled to be started at the same time. Each temperature measuring probe 4 corresponds to one screen pipe nipple 5, so that the formation temperature can be quickly conducted conveniently.
Fig. 2 is a schematic structural diagram of a special instrument hanger of the horizontal well multipoint distributed temperature logging device.
The special instrument hanger 3 is connected with the temperature measuring probe 4 and is ingeniously placed in the tubing coupling 2, so that the temperature measuring probe 4 is conveyed into a horizontal section for measurement, and the vibration resistance problem of the temperature measuring probe 4 is solved.
In an embodiment, the working time and the sampling interval of the plurality of storage type temperature measurement probes 4 are preset on the ground, the length of the oil pipe 1 is accurately measured according to the descending sequence, the plurality of storage type temperature measurement probes 4 are connected to the plurality of matched special instrument hangers 3 according to the numbering sequence T1-TN, and then the special instrument hangers 3 connected with the storage type temperature measurement probes 4 are suspended in the oil pipe coupling 2 of the screen pipe nipple 5, so that the installation of the single temperature measurement probe 4 is completed. And by analogy, the screen pipe nipple 5 and the tubing coupling 2 (the temperature measuring probes 4 are connected with the special instrument hanger 3 and hung in the tubing coupling 2) and the tubing 1 are sequentially put into the well until all the temperature measuring probes 4 are put into the horizontal section in sequence, and the temperature of the whole horizontal measuring section of the horizontal well is continuously measured in real time. And recording the time, completely pulling out the temperature measuring probes 4 after the test is finished, playing back, splicing and processing the data of all the temperature measuring probes 4 through special test analysis software, drawing a temperature trend curve of each depth position of the horizontal measuring section corresponding to the plurality of temperature measuring probes 4 along with the time change by combining the well-stretched depth of the oil pipe, finishing the overall evaluation of the horizontal measuring section, guiding the optimization and adjustment of steam injection positions, implementing water shutoff and profile control measures, ensuring the overall balance of the horizontal section, and improving the overall development effect of the horizontal well.
According to the horizontal well multi-point distributed temperature logging device, a plurality of temperature measuring probes are conveyed to the whole horizontal measuring section through oil pipes to complete measurement of the change rule of the horizontal well temperature field, and efficient development of the horizontal well is guided. The temperature measuring probe is installed on a special instrument hanger and hung at the position of an oil pipe coupling, and the lower end of the temperature measuring probe is connected with a sieve pipe nipple to realize rapid temperature transmission. The lower end of the screen pipe nipple is connected with a common oil pipe, and the rest is done in the same way, and a plurality of temperature measuring probes are evenly distributed and arranged in the whole horizontal measuring section and distributed and arranged along the well shaft of the horizontal well.
The horizontal well multi-point distributed temperature logging device realizes installation and measurement by connecting a special instrument hanger with a temperature measuring probe. The screen pipe short joints are adopted to realize rapid temperature transmission, the temperature measuring probes are arranged in a distributed mode along the well shaft of the horizontal measuring section, and the temperature change value is measured at any time. A large amount of data of a plurality of temperature measuring probes are synchronously measured and automatically spliced in a programmed mode.
The invention discloses a horizontal well multi-point distributed temperature logging monitoring method, which comprises the following steps:
the first step is as follows: pre-programming a logging service table at the surface: setting the total working time of the temperature measuring probe, the data sampling interval and the initial unified working time;
the second step is as follows: sending the programmed well logging service table to each temperature measuring probe in a command form;
the third step: installing a power supply battery to supply power to the temperature measuring probe and preparing for well logging;
the fourth step: connecting each temperature measuring probe with a special instrument hanger;
the fifth step: connecting each screen pipe nipple with a tubing coupling, and placing an instrument-specific hanger connected with a temperature measuring probe in the tubing coupling;
a sixth step: the method is characterized in that the temperature measuring probes are connected according to the serial number sequence, and the temperature measuring probes are put into the whole horizontal section along with the oil pipe and are arranged in a distributed mode along the well axis of the horizontal well to start well logging;
a seventh step of: statically measuring a temperature change trend line for 5-6 hours;
an eighth step: after the measurement is finished, each temperature measuring probe is taken out along with the oil pipe, data playback is carried out on the ground, construction records are filled in, and a data drawing and resolving center is reported;
a ninth step: and (3) preprocessing data, automatically generating a plurality of temperature trend result curves which correspond to depths and change along with time, evaluating, analyzing, processing and reporting.
Claims (5)
1. The horizontal well multi-point distributed temperature logging device is characterized by comprising a plurality of probe assembling units, the performance structures of the probe assembly units are the same and are uniformly distributed in the whole horizontal measurement section to measure the multipoint temperature of the horizontal well, each probe assembly unit comprises an oil pipe, an oil pipe coupling, a special instrument hanger and a temperature measurement probe, the oil pipe is connected with the upper end of the oil pipe coupling and is a conveying main body of the temperature measuring probe, the temperature measuring probe is conveyed to the horizontal measuring section, the temperature measuring probe measures the real-time continuous temperature variation trend, the special instrument hanger is connected with the temperature measuring probe, the temperature measuring probe is suspended in the tubing coupling by the special instrument hanger and is lowered into a horizontal measuring section along with the tubing.
2. The horizontal well multi-point distributed temperature logging device according to claim 1, wherein the probe assembly unit further comprises a screen nipple connected to the lower end of the tubing collar, and a plurality of holes are reserved on the wall of the screen nipple for rapid transmission of the formation temperature.
3. The horizontal well multi-point distributed temperature logging device according to claim 1, wherein the number of the plurality of probe assembly units is N, which is the horizontal section length/(each tubing length + screen pipe sub length).
4. The horizontal well multi-point distributed temperature logging device according to claim 3, wherein 1-N temperature measuring probes are respectively represented by T1-TN, and each temperature measuring probe is sequentially numbered for downhole, namely T1, T2 and T3 … TN.
5. The method for monitoring the horizontal well multipoint distributed temperature logging is characterized in that the horizontal well multipoint distributed temperature logging device according to claim 1 is adopted, and the method comprises the following steps:
step 1, setting the total working time of a temperature measuring probe, a data sampling interval and the initial unified working time;
step 2, connecting the temperature measuring probe with a special instrument hanger;
step 3, connecting the screen pipe nipple with the tubing coupling, and placing the special hanger for the instrument connected with the temperature measuring probe in the tubing coupling;
step 4, analogizing in sequence, connecting according to the serial number sequence of the temperature measuring probes, putting the temperature measuring probes into the whole horizontal section along with an oil pipe, and starting logging along the well shaft of the horizontal well in a distributed arrangement mode;
step 5, statically measuring a temperature change trend line for 5-6 hours;
and 6, after the measurement is finished, taking out each temperature measurement probe along with the oil pipe, carrying out data playback on the ground, carrying out data preprocessing, and generating a plurality of temperature trend result curves which correspond to the depth and change along with time.
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| CN202010958265.8A CN114165221A (en) | 2020-09-11 | 2020-09-11 | Horizontal well multi-point distributed temperature logging device and monitoring method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060250274A1 (en) * | 2005-04-18 | 2006-11-09 | Core Laboratories Canada Ltd | Systems and methods for acquiring data in thermal recovery oil wells |
| CN201202469Y (en) * | 2008-06-02 | 2009-03-04 | 马冬兰 | Depth checking type temperature pressure tester of thermal extraction horizontal well |
| CN103615199A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes |
| CN110700813A (en) * | 2019-12-03 | 2020-01-17 | 中国石油化工股份有限公司 | Logging instrument fixing device |
| CN111622749A (en) * | 2020-04-14 | 2020-09-04 | 中国石油化工股份有限公司 | Water exploration pipe column and water exploration method for thick oil thermal recovery screen pipe well completion horizontal well |
-
2020
- 2020-09-11 CN CN202010958265.8A patent/CN114165221A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060250274A1 (en) * | 2005-04-18 | 2006-11-09 | Core Laboratories Canada Ltd | Systems and methods for acquiring data in thermal recovery oil wells |
| CN201202469Y (en) * | 2008-06-02 | 2009-03-04 | 马冬兰 | Depth checking type temperature pressure tester of thermal extraction horizontal well |
| CN103615199A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes |
| CN110700813A (en) * | 2019-12-03 | 2020-01-17 | 中国石油化工股份有限公司 | Logging instrument fixing device |
| CN111622749A (en) * | 2020-04-14 | 2020-09-04 | 中国石油化工股份有限公司 | Water exploration pipe column and water exploration method for thick oil thermal recovery screen pipe well completion horizontal well |
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