CN115711119B - Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system - Google Patents
Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system Download PDFInfo
- Publication number
- CN115711119B CN115711119B CN202211463394.5A CN202211463394A CN115711119B CN 115711119 B CN115711119 B CN 115711119B CN 202211463394 A CN202211463394 A CN 202211463394A CN 115711119 B CN115711119 B CN 115711119B
- Authority
- CN
- China
- Prior art keywords
- cement
- area
- sleeve
- channeling
- marked
- 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.)
- Active
Links
- 239000004568 cement Substances 0.000 title claims abstract description 126
- 230000005465 channeling Effects 0.000 title claims abstract description 58
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000002474 experimental method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 238000007596 consolidation process Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 63
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an experimental method for monitoring cement channeling in real time by using a borehole wall sticking acoustic system, which comprises the following specific steps: firstly, placing acoustic wave transducers which are uniformly arranged in the annular direction in a cased well of a cement packer experimental measurement system; pouring the prepared cement paste between the casing and the stratum; respectively transmitting according to a time sequence, and respectively describing the cement strength of each region and the consolidation degree of the sleeve and the cement sheath in channeling through the received sleeve wave amplitude; step four, calculating attenuation of the sleeve wave by utilizing the amplitude of the sleeve wave received by the two receivers by utilizing the same transmitting transducer; step five, monitoring the sleeve attenuation value of the area in real time from cement pouring; step six, whether the channeling is transmitted to the area can be known through the change of the sleeve wave amplitude in each area. The invention can solve the technical problems of monitoring the cement bond state and the development form of cement channeling in real time in the cement packing experimental process.
Description
Technical Field
The invention belongs to the technical field of oil and gas field exploration and development, and relates to an experimental method for monitoring cement channeling in real time by using a borehole wall sticking acoustic system.
Background
Evaluation of cement sheath interval packability in oil and gas well development is a complex problem involving a series of influencing factors such as acoustic logging response, cement sheath interface bond strength, cement permeability, effective packing length, sheath pressure differential, fluid physical properties in formation pores, and the like. The description of channeling forms is not realized in the existing cement packing experiment measurement process. By channeling is meant channeling channels formed between the casing and the cement sheath or cement sheath and the formation due to lack of cement bond. The presence of channeling is extremely detrimental to oil well production. The packer differential pressure under the cementing length is measured through experiments, so that guidance can be provided for setting the threshold value of the well pressure in the field safety test and the safety exploitation process.
Disclosure of Invention
The invention aims to provide an experimental method for monitoring cement channeling in real time by using a borehole wall-attached acoustic system, so as to solve the technical problems of monitoring cement bond status and development form of cement channeling in real time in the cement packing experimental process. Further, the formation of the channeling and the direction of the channeling are described by adopting the change speed of the amplitude of the casing wave of different sectors along with time in combination with the physical process of the cement sheath channeling of the casing well, and the direction of the channeling and the extending path of the measuring interval are given by combining the change rules of the amplitude of the casing wave of different sectors.
In order to achieve the above object, the present invention adopts the following technical scheme:
an experimental method for monitoring cement channeling in real time by using a borehole wall sticking acoustic system comprises the following specific steps:
Placing 12 sonic transducers in a casing well of a cement packer experimental measurement system, wherein 2 sonic transducers are mounted on one measuring arm, the measuring arms are axially arranged along the casing, 6 measuring arms are attached to the inner wall of the casing by a pushing device and are uniformly arranged in the annular direction, the two measuring arms are respectively marked as No. 1,2,3, 4, 5 and 6 measuring arms, the two adjacent measuring arm shafts are separated by 2ft up and down, the axial positions of the No. 1,3 and 5 measuring arms are consistent, the axial positions of the No. 2,4 and 6 measuring arms are consistent, the two probes of the No. 1 measuring arm are respectively marked as T1 and R1, the two probes of the No. 2 measuring arm are respectively marked as T2 and R2, and the like; wherein the part between the probe T2 and the probes R1, R3 is marked as area 1 and area 2, the part between the probe T4 and the probes R3, R5 is marked as area 3 and area 4, the part between the probe T6 and the probes R5, R1 is marked as area 5 and area 6, the part between the probe R1 and the probes R2, R6 is marked as area 7 and area 12, the part between the probe R3 and the probes R2, R4 is marked as area 8 and area 9, the part between the probe R5 and the probes R4, R6 is marked as area 10 and area 11, the part between the probe R2 and the probes T1, T3 is marked as area 13 and 14, the part between the probe R4 and the probes T3, T5 is marked as area 15 and area 16, and the part between the probe R6 and the probes T5, T1 is marked as area 17 and area 18;
step two, pouring the prepared cement paste between the sleeve and the stratum after the measuring acoustic system is fixed;
Step three, after cement slurry is poured in an annulus between the casing and the stratum, T1, T2, T3, T4, T5 and T6 are respectively transmitted according to time sequences, R2, R3, R5 and R6 are received during T1 transmission, and cement strength of areas 13, 8, 11 and 18 and consolidation degree of the casing and a cement ring during channeling are respectively marked through the amplitude of received casing waves; r1, R3, R4 and R6 are received during T2 emission, and the cement strength of the areas 1, 2, 9 and 12 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved; r1, R2, R4 and R5 are received during T3 emission, and the cement strength of the areas 7, 14, 15 and 10 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is achieved; r2, R3, R5 and R6 are received during T4 emission, and the cement strength of the areas 8, 3, 4 and 11 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved; r1, R3, R4 and R6 are received during T5 emission, and the cement strength of the areas 12, 9, 16 and 17 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is achieved; r1, R2, R4 and R5 are received during T6 emission, and the cement strength of the areas 6, 7, 10 and 5 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved;
Step four, calculating attenuation of the sleeve wave by using the same transmitting transducer and the sleeve wave amplitudes received by two receivers, wherein a calculation formula is shown in a formula (1), in a region 5, attenuation values are calculated by using the sleeve wave amplitudes received by T1 and T4 and R2 and R3 respectively, and the two attenuation values average the cement strength of the corresponding region 5 or the consolidation degree between the sleeve and a cement sheath;
Att＝20/L*log10(Amp Near-to-near /Amp Far distance ) (1)
L is the distance between the two probes, and Amp Near-to-near 、Amp Far distance is the amplitude of the sleeve wave received by the near receiving transducer and the far receiving transducer respectively;
Step five, monitoring the attenuation value of the sleeve wave in the area in real time from cement pouring, increasing the cement strength along with the increase of time, gradually increasing the attenuation of the sleeve wave, and if the variation amplitude of the attenuation value of the sleeve wave, which is stabilized near a certain value, is +/-0.5 dB/ft in 2 hours of continuous observation, indicating that the cement strength is stabilized;
Step six, after the cement strength is stable, starting experimental measurement of cement packing performance, arranging pressure detection ports on the upper end face and the lower end face of a cement sheath, and gradually pressurizing the lower end of the cement sheath at the pressurizing point to observe the pressure change of the upper end; the process of pressurizing the lower end is also a process of gradually increasing the pressure difference between the upper end and the lower end of the cement sheath, the pressure of the upper end is suddenly increased to reach the same pressure as the pressure difference of the lower end, and the situation that the cement sheath is failed due to the occurrence of channeling in the cement sheath is indicated; in the process, measuring the acoustic system and monitoring in real time, and judging whether the channeling is in the region or not according to the change of the sleeve wave amplitude in each region; in the fifth step, when the cement strength is stable, the sleeve wave amplitude reaches the minimum value; in the cement packing experiment in the step six, if the sleeve wave amplitude of a certain area is increased, the sleeve and the cement sheath in the area are de-bonded; when channeling occurs, the area close to the pressurizing point is firstly channeling, then the area is quickly expanded to the whole circumferential direction, and then the channeling upwards occurs until the whole measuring interval is completely debonded.
The invention has the advantages and positive effects as follows:
The invention utilizes a borehole wall sticking acoustic system, and the change of the sleeve wave amplitude is measured by an instrument acoustic system, so that a method for monitoring cement channeling in real time in the cement isolation test process is formed, and the visualization of cement isolation test measurement is realized. The invention provides the channeling form of the cement sheath in the measuring region, and the measuring method also provides basis for determining the cement setting time and detecting the strength change of cement in the setting process from pouring in the cement packer experiment.
Drawings
FIG. 1 is a schematic representation of a cased well model of the present invention.
Fig. 2 is a schematic diagram of the acoustic measurement of the present invention.
Fig. 3 is a graph showing the time-dependent change of the attenuation of the sleeve wave according to the present invention.
Fig. 4 is an illustration of the amplitude of sound waves received by different receivers of the present invention.
Detailed Description
The invention relates to a measuring scheme for monitoring cement channeling in real time by using a borehole wall-attached acoustic system, which can realize the detection of the extension of the cement channeling in the circumferential direction and the axial direction and comprises the following specific steps:
Step one, placing 12 sonic transducers in a casing well of a cement packer experimental measurement system, as shown in fig. 1 and 2, wherein 2 sonic transducers are mounted on one measurement arm, the measurement arms are axially arranged along the casing, 6 measurement arms are attached to the inner wall of the casing by a pushing device, the measurement arms are uniformly arranged in the annular direction, the two adjacent measurement arm shafts are respectively marked as No. 1,2,3,4, 5 and 6 measurement arms, the axial positions of the two adjacent measurement arm shafts are identical up and down by 2ft, the axial positions of the No. 1, 3 and 5 measurement arms are identical, the axial positions of the No. 2,4 and 6 measurement arms are identical, the two probes on the No. 1 measurement arm are respectively marked as T1 and R1, the two probes on the No. 2 measurement arm are respectively marked as T2 and R2, and so on. Wherein the part between the probe T2 and the probes R1, R3 is marked as area 1 and area 2, the part between the probe T4 and the probes R3, R5 is marked as area 3 and area 4, the part between the probe T6 and the probes R5, R1 is marked as area 5 and area 6, the part between the probe R1 and the probes R2, R6 is marked as area 7 and area 12, the part between the probe R3 and the probes R2, R4 is marked as area 8 and area 9, the part between the probe R5 and the probes R4, R6 is marked as area 10 and area 11, the part between the probe R2 and the probes T1, T3 is marked as area 13 and 14, the part between the probe R4 and the probes T3, T5 is marked as area 15 and area 16, and the part between the probe R6 and the probes T5, T1 is marked as area 17 and area 18. In fig. 1, 1 is a measurement wall, 2 is a casing, 3 is cement, and 4 is a formation.
And secondly, pouring the prepared cement paste between the casing and the stratum after the measuring acoustic system is fixed.
Step three, after cement slurry is poured in an annulus between the casing and the stratum, T1, T2, T3, T4, T5 and T6 are respectively transmitted according to time sequences, R2, R3, R5 and R6 are received during T1 transmission, and the cement strength of areas 13, 8, 11 and 18 in FIG. 2 and the consolidation degree of the casing and a cement sheath during channeling are respectively carved through the amplitude of the received casing waves; r1, R3, R4 and R6 are received during T2 emission, and the cement strength of the areas 1, 2, 9 and 12 in the figure 2 and the consolidation degree of the sleeve and the cement sheath during channeling are respectively carved through the amplitude of the received sleeve waves; r1, R2, R4 and R5 are received during T3 emission, and the cement strength of the areas 7, 14, 15 and 10 in the graph 2 and the consolidation degree of the sleeve and the cement sheath during channeling are respectively carved through the amplitude of the received sleeve waves; r2, R3, R5 and R6 are received during T4 emission, and the cement strength of areas 8, 3, 4 and 11 in FIG. 2 and the consolidation degree of the sleeve and the cement sheath during channeling are respectively carved through the received sleeve wave amplitude; r1, R3, R4 and R6 are received during T5 emission, and the cement strength of areas 12, 9, 16 and 17 in FIG. 2 and the consolidation degree of the sleeve and the cement sheath during channeling are respectively carved through the amplitude of the received sleeve waves; r1, R2, R4 and R5 are received during T6 emission, and the cement strengths of the areas 6, 7, 10 and 5 in FIG. 2 and the consolidation degree of the sleeve and the cement sheath during channeling are respectively carved through the received sleeve wave amplitudes.
And fourthly, using the same transmitting transducer, calculating the attenuation of the casing wave by using the casing wave amplitudes received by the two receivers, wherein the calculation formula is shown in formula (1), taking the area 5 as an example, calculating attenuation values by using the casing wave amplitudes received by T1 and T4 and R2 and R3 respectively, and taking the average of the cement intensity of the corresponding area 5 or the consolidation degree between the casing and the cement sheath by the two attenuation values.
Att＝20/L*log10(Amp Near-to-near /Amp Far distance ) (1)
L is the distance between the two probes, and Amp Near-to-near 、Amp Far distance is the amplitude of the sleeve wave received by the near receiving transducer and the far receiving transducer, respectively.
Step five, monitoring the sleeve attenuation value of the area in real time from cement pouring, wherein the cement strength is increased and the attenuation of the sleeve wave is gradually increased along with the increase of time, as shown in fig. 3, if the sleeve wave attenuation value is stabilized near a certain value in 2 hours of continuous observation, the attenuation value is +/-0.5 dB/ft, the cement strength is stabilized, and the change rule of the attenuation along with time is shown in fig. 3.
And step six, after the cement strength is stable, starting experimental measurement of cement packing performance, arranging pressure detection ports on the upper end face and the lower end face of the cement sheath, and gradually pressurizing the lower end of the cement sheath at the pressurizing point to observe the change of the pressure at the upper end. The process of pressurizing the lower end is also a process of gradually increasing the pressure difference between the upper end and the lower end of the cement sheath, the pressure of the upper end is suddenly increased to reach the same pressure as the pressure difference of the lower end, and the situation that the channeling occurs in the cement sheath and the cement packing is failed is indicated. In the process of measuring acoustic real-time monitoring, whether the channeling is carried into the area can be known through the change of the sleeve wave amplitude in each area in fig. 2, in the fifth step, after the cement strength is stable, the sleeve wave amplitude reaches the minimum value, in the sixth step, in the cement packing experiment, if the sleeve wave amplitude of a certain area is increased, the sleeve and the cement sheath in the area are debonded, as shown in the sleeve wave amplitude imaging diagram shown in fig. 4, the channeling is firstly carried out in the area 4, and the channeling is firstly carried out in the area 3, the area 2, the area 1, the area 5 and the area 6 in sequence in the circumferential direction, and is longitudinally carried out in the area 9, the area 8 and the peripheral area 16, the area 15, the area 10, the area 7, the area 13, the area 12, the area 14, the area 11, the area 18 and the area 17 in sequence. From the above analysis, it can be seen that when channeling occurs, the area 4 near the pressurization point is first channeling, and then quickly expands to the whole circumferential direction, and then the channeling is upward until the whole measurement area is completely debonded.
The amplitude of the sound waves received by the different receivers of the present invention can be seen in fig. 4.
Claims (1)
1. An experimental method for monitoring cement channeling in real time by using a borehole wall sticking acoustic system comprises the following specific steps: placing 12 sonic transducers in a casing well of a cement packer experimental measurement system, wherein 2 sonic transducers are mounted on one measuring arm, the measuring arms are axially arranged along the casing, 6 measuring arms are attached to the inner wall of the casing by a pushing device and are uniformly arranged in the annular direction, the two measuring arms are respectively marked as No. 1,2, 3, 4, 5 and 6 measuring walls, the two adjacent measuring arm shafts are separated by 2ft up and down, the axial positions of the No. 1, 3 and 5 measuring arms are consistent, the axial positions of the No. 2, 4 and 6 measuring arms are consistent, the two probes of the No. 1 measuring arm are respectively marked as T1 and R1, the two probes of the No. 2 measuring arm are respectively marked as T2 and R2, and the like; wherein the part between the probe T2 and the probes R1, R3 is marked as area 1 and area 2, the part between the probe T4 and the probes R3, R5 is marked as area 3 and area 4, the part between the probe T6 and the probes R5, R1 is marked as area 5 and area 6, the part between the probe R1 and the probes R2, R6 is marked as area 7 and area 12, the part between the probe R3 and the probes R2, R4 is marked as area 8 and area 9, the part between the probe R5 and the probes R4, R6 is marked as area 10 and area 11, the part between the probe R2 and the probes T1, T3 is marked as area 13 and 14, the part between the probe R4 and the probes T3, T5 is marked as area 15 and area 16, and the part between the probe R6 and the probes T5, T1 is marked as area 17 and area 18;
step two, pouring the prepared cement paste between the sleeve and the stratum after the measuring acoustic system is fixed;
Step three, after cement slurry is poured in an annulus between the casing and the stratum, T1, T2, T3, T4, T5 and T6 are respectively transmitted according to time sequences, R2, R3, R5 and R6 are received during T1 transmission, and cement strength of areas 13, 8, 11 and 18 and consolidation degree of the casing and a cement ring during channeling are respectively marked through the amplitude of received casing waves; r1, R3, R4 and R6 are received during T2 emission, and the cement strength of the areas 1, 2, 9 and 12 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved; r1, R2, R4 and R5 are received during T3 emission, and the cement strength of the areas 7, 14, 15 and 10 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is achieved; r2, R3, R5 and R6 are received during T4 emission, and the cement strength of the areas 8, 3, 4 and 11 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved; r1, R3, R4 and R6 are received during T5 emission, and the cement strength of the areas 12, 9, 16 and 17 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is achieved; r1, R2, R4 and R5 are received during T6 emission, and the cement strength of the areas 6, 7, 10 and 5 are respectively marked through the received sleeve wave amplitude, and the consolidation degree of the sleeve and the cement sheath during channeling is improved;
Step four, calculating attenuation of the sleeve wave by using the same transmitting transducer and the sleeve wave amplitudes received by two receivers, wherein a calculation formula is shown in a formula (1), in a region 5, attenuation values are calculated by using the sleeve wave amplitudes received by T1 and T4 and R2 and R3 respectively, and the two attenuation values average the cement strength of the corresponding region 5 or the consolidation degree between the sleeve and a cement sheath;
Att＝20/L*log10(Amp Near-to-near /Amp Far distance ) (1)
L is the distance between the two probes, and Amp Near-to-near 、Amp Far distance is the amplitude of the sleeve wave received by the near receiving transducer and the far receiving transducer respectively;
Step five, monitoring the attenuation value of the sleeve wave in the area in real time from cement pouring, increasing the cement strength along with the increase of time, gradually increasing the attenuation of the sleeve wave, and if the variation amplitude of the attenuation value of the sleeve wave, which is stabilized near a certain value, is +/-0.5 dB/ft in 2 hours of continuous observation, indicating that the cement strength is stabilized;
Step six, after the cement strength is stable, starting experimental measurement of cement packing performance, arranging pressure detection ports on the upper end face and the lower end face of a cement sheath, and gradually pressurizing the lower end of the cement sheath at the pressurizing point to observe the pressure change of the upper end; the process of pressurizing the lower end is also a process of gradually increasing the pressure difference between the upper end and the lower end of the cement sheath, the pressure of the upper end is suddenly increased to reach the same pressure as the pressure difference of the lower end, and the situation that the cement sheath is failed due to the occurrence of channeling in the cement sheath is indicated; in the process, measuring the acoustic system and monitoring in real time, and judging whether the channeling is in the region or not according to the change of the sleeve wave amplitude in each region; in the fifth step, when the cement strength is stable, the sleeve wave amplitude reaches the minimum value; in the cement packing experiment in the step six, if the sleeve wave amplitude of a certain area is increased, the sleeve and the cement sheath in the area are de-bonded; when channeling occurs, the area close to the pressurizing point is firstly channeling, then the area is quickly expanded to the whole circumferential direction, and then the channeling upwards occurs until the whole measuring interval is completely debonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211463394.5A CN115711119B (en) | 2022-11-22 | 2022-11-22 | Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211463394.5A CN115711119B (en) | 2022-11-22 | 2022-11-22 | Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115711119A CN115711119A (en) | 2023-02-24 |
| CN115711119B true CN115711119B (en) | 2024-06-21 |
Family
ID=85234018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211463394.5A Active CN115711119B (en) | 2022-11-22 | 2022-11-22 | Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115711119B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383786A (en) * | 2010-08-30 | 2012-03-21 | 中国石油化工集团公司 | Sector cement bonding and sound wave time difference logging instrument |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4893285A (en) * | 1982-07-01 | 1990-01-09 | Schlumberger Technology Corporation | Method and apparatus for cement bond tool |
| US6614229B1 (en) * | 2000-03-27 | 2003-09-02 | Schlumberger Technology Corporation | System and method for monitoring a reservoir and placing a borehole using a modified tubular |
| EP1464959B1 (en) * | 2003-04-03 | 2006-07-12 | Services Petroliers Schlumberger | Acoustic method for cement bond evaluation in boreholes |
| CN1702295A (en) * | 2005-06-17 | 2005-11-30 | 中国石化集团胜利石油管理局测井公司 | Cementing acoustic imaging logging instrument |
| US7773454B2 (en) * | 2006-02-22 | 2010-08-10 | Baker Hughes Incorporated | Method and apparatus for cement evaluation using multiple acoustic wave types |
| US7639563B2 (en) * | 2007-12-27 | 2009-12-29 | Schlumberger Technology Corporation | Method for sonic indication of voids in casing cement |
| WO2016019247A1 (en) * | 2014-08-01 | 2016-02-04 | William Marsh Rice University | Systems and methods for monitoring cement quality in a cased well environment with integrated chips |
| CN104500034B (en) * | 2014-12-29 | 2017-04-12 | 西南石油大学 | Device and method for evaluating influence of pressure change on completeness of cement sheath |
| CN106771096B (en) * | 2016-12-09 | 2019-03-01 | 西南石油大学 | A kind of cementing concrete ring seal is every ability dynamic checkout unit and experimental method |
| CN112145155B (en) * | 2017-02-28 | 2022-04-15 | 中国地质大学（北京） | Experimental method of evaluation device capable of eccentrically testing cementing quality of first interface of well cementation |
| CN109882152B (en) * | 2019-02-22 | 2022-09-02 | 中国石油大学(华东) | Micro-ring identification method between casing and cement sheath |
| CN114293976B (en) * | 2022-01-11 | 2023-06-16 | 中国石油大学(华东) | Method for identifying cement sheath cementing conditions in a casing well using SH mode waves and A0 mode waves |
-
2022
- 2022-11-22 CN CN202211463394.5A patent/CN115711119B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383786A (en) * | 2010-08-30 | 2012-03-21 | 中国石油化工集团公司 | Sector cement bonding and sound wave time difference logging instrument |
Non-Patent Citations (1)
| Title |
|---|
| 自制固井质量评价实验系统在测井专业实验教学中的应用;陈雪莲;;实验技术与管理(第11期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115711119A (en) | 2023-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1863986B (en) | Multimode acoustic imaging in cased wells | |
| CN104500034B (en) | Device and method for evaluating influence of pressure change on completeness of cement sheath | |
| US5992223A (en) | Acoustic method for determining the static gel strength of a cement slurry | |
| CN103518123B (en) | The Integrity Verification of pipeline | |
| Pardue et al. | Cement bond log-a study of cement and casing variables | |
| US20170342823A1 (en) | Pulse reflection travel time analysis to track position of a downhole object | |
| CN112593922B (en) | Method and device for evaluating cementing quality of two well cementation interfaces through array acoustic logging | |
| CN107991165B (en) | Cement sheath air tightness failure judgment method | |
| AU2010236274A1 (en) | Casing thickness evaluation method | |
| CN102305829A (en) | Rock triaxial compression acoustic emission test system | |
| CN109958432B (en) | Method and device for evaluating cementing quality of well cementation II interface by utilizing ultrasonic echo logging | |
| US20210302292A1 (en) | Testing Cement Shear Bond Strength at Reservoir Conditions | |
| CN106499383A (en) | A kind of method of evaluating cementing barrier integrity | |
| CN115615534B (en) | Liquid-filled probe rod and measuring device for measuring in-situ sound velocity of submarine sediment | |
| CN112557499B (en) | Experimental method for influence of joints on stress wave transmission and reflection rules based on ultrasonic waves | |
| CN104818735A (en) | Exploring drill bit and method for detecting pile foundation by using exploring drill bit | |
| CN111827977B (en) | Acoustic wave tester device and acoustic wave testing method for evaluating indoor well cementation quality | |
| WO2015109954A1 (en) | Rock acoustic wave detection transducer | |
| CN115711119B (en) | Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system | |
| CN112857698B (en) | Method for detecting wall leakage based on surface acoustic waves | |
| CN202216938U (en) | Rock triaxial compression acoustic emission testing system | |
| CN106869843B (en) | Simulation experiment method for evaluating yield and injection increasing effect of oil-water well by physical method | |
| CN105738215A (en) | Novel method for testing geostress jointly by acoustic emission and differential strain | |
| CN110455915A (en) | Tunnel Second Lining supplements grouting method | |
| CN207033436U (en) | A kind of vibration cementing real-time monitoring system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |