CN103114844A - Instrument eccentricity correction method in horizontal well acoustic cement bond logging - Google Patents
Instrument eccentricity correction method in horizontal well acoustic cement bond logging Download PDFInfo
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Abstract
The invention relates to a method for correcting the eccentric influence of a sonic cement bond logging instrument during horizontal well cementation quality evaluation in the oil field development process. The method comprises the steps of calculating the eccentricity of an instrument in a sleeve by utilizing the difference of eight-sector acoustic wave amplitudes caused by eccentricity in the sector cement bond well logging, correcting the 3ft acoustic wave amplitude in the eccentric state to the amplitude value of the instrument in the centered state by utilizing the relation between the eccentricity and the 3ft acoustic wave amplitude, and then recalculating the cement bond index for evaluating the well cementation quality. The method can improve the accuracy of horizontal well cementation quality evaluation, provides accurate technical data for perforation and fracturing, and meets the requirements of horizontal well development.
Description
Technical field
The present invention relates in oilfield development process, when carrying out the horizontal cementing quality evaluation, proofread and correct a kind of method of acoustic cement bond log instrument Influence from Eccentric
Background technology
In oilfield development process, the horizontal wells technology develops rapidly, but relatively lags behind as the horizontal cementing quality logging technique of supporting technology, still continues to use the logging technique that is applicable to peupendicular hole the net horizontal section cementing quality is estimated.In peupendicular hole or low-angle inclined shaft, logger can guarantee center condition, but in net horizontal section and high angle hole section, cause instrument eccentric at net horizontal section under action of gravitation, instrument can not be placed in the middle in sleeve pipe, as shown in Figure 1, make peupendicular hole cementing quality logging technique occur at net horizontal section inadaptable.Theory analysis is thought, when instrument is eccentric, from each wave train that is reflected back receiver well week, phase deviation can occur, and the casing wave amplitude that superposes out can reduce; Instrument bias shows theory and the experimental result of the impact of casing wave, and as shown in Figures 2 and 3, when instrument point source bias reached 1/4in, the casing wave amplitude can reduce nearly 50%; Instrumentation column source bias is larger on the impact of Borehole Acoustic Waves, and theoretical and experiment shows that all the casing wave amplitude reduces gradually with the increase of eccentric throw.And the casing wave amplitude that instrument bias causes being recorded to reduces, and causes Cementation Quality to estimate the illusion of preference, and then affects effective execution of perforation, fracturing methods.Therefore, for guaranteeing the accuracy of horizontal cementing quality evaluation, must proofread and correct the instrument Influence from Eccentric.
Summary of the invention
For the accuracy of the well primary cement evaluation of improving the standard, for next step perforation, pressure break provides technical data accurately, satisfy the demand of horizontal well development, the invention provides a kind of horizontal well acoustic cement bond log Instrumental eccentric correction method.
Technical scheme of the present invention is: a kind of horizontal well acoustic cement bond log Instrumental eccentric correction method is characterized in that comprising following process:
1.. the model computation model, by the log response of eight sector probes under the different eccentric throws of numerical simulation, can set up the sound width response data of eight sectors that are in different orientations in different eccentric throw situations;
2.. eight sector labels are 1-8, and at first defining No. 1 sector institute azimuthal is 0
0, according to angle between the sector 45
0, can converse other 7 sector institute azimuthal;
3.. can organize in the response simulation data of sector at each respectively according to 8 azimuths and find the corresponding acoustic amplitude in each azimuth, totally 23 groups, every group of 8 acoustic amplitudes;
4.. with 1
0Be step-length, change the azimuth of No. 1 sector, and try to achieve other 7 sector institute azimuthal, repeating step 3 is until the azimuth of No. 1 sector reaches 360
0, can obtain so altogether 23 * 360 groups of simulated sound width data, 8 every group;
5.. from the practical logging data, extract one group of eight sector sound width data of a depth point, totally 8, the sound width data that this group is extracted and 23 * 360 groups of simulated sound width data do respectively squared difference and, be total to 23 * 360 squared difference with;
6.. ask all squared difference and minimum value, find one group of analogue data corresponding to minimum value, the corresponding eccentric distance of this group analogue data is the instrument eccentric throw on required depth point
7.. set up the 3ft acoustic amplitude with the Changing Pattern of instrument eccentric distance by numerical simulation;
8.. utilize the resulting eccentric throw of step 6, find corresponding standardization acoustic amplitude at Fig. 7;
9.. extract the 3ft acoustic amplitude of these degree of depth practical logging data, and be worth divided by the resulting standardization acoustic amplitude of step 8 with this, just obtained the 3ft acoustic amplitude after the eccentric correction.
The invention has the beneficial effects as follows: the method is based on existing primary cement evaluation logger, need not to develop new logger, need not to change existing construction technology and operational procedure, has stronger implementation; The identification of instrument bias and correction have higher precision, the eccentric throw inversion error is less than 1mm, the amplitude correction error is less than 6.3%, to embed according to the program code that the eccentric correction method is write cementing quality interpretation software data processing module, can realize data pretreatment, eccentric identification and trimming process is one-touch completes, when not increasing explanation personnel burden, improved the evaluation accuracy; In the peupendicular hole section, the instrument eccentric throw is 0, and the casing wave correcting value is 0; Between 4mm-20mm, 3ft sound width and cement bond index are proofreaied and correct in net horizontal section instrument eccentric throw, not only can be used for peupendicular hole but also can be applicable to horizontal well based on the means of interpretation of eccentric correction, have universality preferably.
Utilize the method, in horizontal cementing quality Well Data Processing, when exactly horizontal segment being logged well, the eccentric distance continuous detecting of instrument out, and proofread and correct 3ft sound width and cement bond index according to eccentric distance, guaranteed the accuracy of primary cement evaluation, for the formulation of the exploitation measures such as horizontal well perforation, pressure break provides information accurately.
Description of drawings
Fig. 1 is the eccentric view of logger when horizontal positioned;
Fig. 2 eccentric throw is theoretical and experimental result one schematic diagram on the impact of casing wave amplitude;
Fig. 3 eccentric throw is theoretical and experimental result two schematic diagrames on the impact of casing wave amplitude;
The eccentric well logging of Fig. 4 instrument computation model schematic diagram;
Eight sector sound wave changes in amplitude schematic diagrames under the different eccentric throws of Fig. 5;
Fig. 6 3ft sound width is with the Changing Pattern schematic diagram of instrument eccentric distance;
Fig. 7 instrument eccentric correction flow chart;
The eccentric identification of Fig. 8 Daqing oil field horizontal cementing quality well logging and correction result.
10-stratum in figure, 11-cement layer, 12-sleeve pipe, 13-fluid, 14-logger, angle between θ-sector, dr-eccentric throw.
The specific embodiment
Below in conjunction with accompanying drawing, invention is described further:
Can find out from Fig. 1 to Fig. 3, can produce a very large impact the cement bond log data because instrument is eccentric, thereby impact be to the accurate evaluation of cementing quality, so need to be proofreaied and correct to eccentric situation the 3Ft acoustic amplitude logging curve that obtains affecting without acceptance of persons.
The basis of this bearing calibration is the sector cement bonding well-log information.Sector cement bond logging instrument is 3ft and two kinds of probes of 5ft except possessing spacing, and also having spacing is the eight sector probes of 2ft, and this probe upwards is being divided into eight sectors week, and each center, sector angle is 45
0, can record 8 sound width curves that react circumferential cementing status.When instrument was eccentric, with respect to situation placed in the middle, the sound width data of 8 sectors can be because of different the produce differences of each sector from the sleeve pipe spacing, utilized this species diversity just can inverting to obtain the eccentric distance of instrument.By setting up the 3ft acoustic amplitude with the Changing Pattern of instrument eccentric distance, just can realize the instrument eccentric correction again.
Concrete implementation step such as Fig. 4 are to shown in Figure 8:
1.. model computation model as shown in Figure 4, in figure, 10 is the stratum, 11 is cement layer, and 12 is sleeve pipe, and 13 is fluid, 14 is logger, θ is angle between the sector, and dr is eccentric throw, by the log response of eight sector probes under the different eccentric throws of numerical simulation, can set up the sound width response data of eight sectors that are in different orientations in different eccentric throw situations, see Fig. 5; Provided 7 kinds of eccentric distances in Fig. 5, other integer eccentric throw response data between 0-22mm can obtain by the method for interpolation, so have 23 groups of sector response simulation data;
2.. be 1-8 with eight sector labels in Fig. 4, at first defining No. 1 sector institute azimuthal is 0
0, according to angle between the sector
(θ is 45
0), can converse other 7 sector institute azimuthal;
3.. can organize in the response simulation data of sector at each respectively according to 8 azimuths and find the corresponding acoustic amplitude in each azimuth, totally 23 groups, every group of 8 acoustic amplitudes;
4.. with 1
0Be step-length, change the azimuth of No. 1 sector, and try to achieve other 7 sector institute azimuthal, repeating step 3 is until the azimuth of No. 1 sector reaches 360
0, can obtain so altogether 23 * 360 groups of simulated sound width data, 8 every group;
5.. from the practical logging data, extract one group of eight sector sound width data of a depth point, totally 8, the sound width data that this group is extracted and 23 * 360 groups of simulated sound width data do respectively squared difference and, be total to 23 * 360 squared difference with;
6.. ask all squared difference and minimum value, find one group of analogue data corresponding to minimum value, the corresponding eccentric distance of this group analogue data is the instrument eccentric throw on required depth point;
7.. set up the 3ft acoustic amplitude with the Changing Pattern figure of instrument eccentric distance by numerical simulation, as shown in Figure 6, this Changing Pattern has passed through experimental verification;
8.. utilize the resulting eccentric throw of step 6, find corresponding standardization acoustic amplitude at Fig. 6;
9.. extract the 3ft acoustic amplitude of these degree of depth practical logging data, and be worth divided by the resulting standardization acoustic amplitude of step 8 with this, just obtained the 3ft acoustic amplitude after the eccentric correction;
10.. needs are proofreaied and correct each depth point Data duplication above-mentioned steps of well section, realize the eccentric correction to 3ft sound width curve, calculate cement bond index to the horizontal cementing quality evaluation according to the 3ft acoustic amplitude.
Above-mentioned physical simulation computational process as shown in Figure 7.
In the method proof procedure, 86 mouthfuls of wells of the field, horizontal cementing quality evaluation technology has realized the cementing quality fine evaluation under the eccentric state of instrument, 1,505 ten thousand yuan of the wound output values.Horizontal well development engineer arranges fractured interval according to the primary cement evaluation result in doing every saliva horizontal well staged fracturing design, comprise pressure break position and interlayer length; Statistics 62703m primary cement evaluation well segment table is bright, cements the well section and accounts for 46.8%, and is medium 41.3%, differs from 11.9%, is starkly lower than peupendicular hole, this invention promoted horizontal well completion and development technique supporting.
Fig. 8 is the bias identification in the quality evaluation of Daqing oil field horizontal cementing and proofreaies and correct result, as can be seen from the figure, instrument bias is timing not, can cause the illusion that cements, after correction, the former explanation of part cements the well section and is evaluated as cementing mediumly, and it is cementing poor that the cementing medium well section of part is estimated convergence, and eccentric correction makes that primary cement evaluation is more strict, result is more accurate.
Claims (1)
1. horizontal well acoustic cement bond log Instrumental eccentric correction method is characterized in that comprising following process:
1.. the model computation model, by the log response of eight sector probes under the different eccentric throws of numerical simulation, can set up the sound width response data of eight sectors that are in different orientations in different eccentric throw situations;
2.. eight sector labels are 1-8, and at first defining No. 1 sector institute azimuthal is 0
0, according to angle between the sector 45
0, can converse other 7 sector institute azimuthal;
3.. can organize in the response simulation data of sector at each respectively according to 8 azimuths and find the corresponding acoustic amplitude in each azimuth, totally 23 groups, every group of 8 acoustic amplitudes;
4.. with 1
0Be step-length, change the azimuth of No. 1 sector, and try to achieve other 7 sector institute azimuthal, repeating step 3 is until the azimuth of No. 1 sector reaches 360
0, can obtain so altogether 23 * 360 groups of simulated sound width data, 8 every group;
5.. from the practical logging data, extract one group of eight sector sound width data of a depth point, totally 8, the sound width data that this group is extracted and 23 * 360 groups of simulated sound width data do respectively squared difference and, be total to 23 * 360 squared difference with;
6.. ask all squared difference and minimum value, find one group of analogue data corresponding to minimum value, the corresponding eccentric distance of this group analogue data is the instrument eccentric throw on required depth point;
7.. set up the 3ft acoustic amplitude with the Changing Pattern of instrument eccentric distance by numerical simulation;
8.. utilize the resulting eccentric throw of step 6, find corresponding standardization acoustic amplitude at Fig. 7;
9.. extract the 3ft acoustic amplitude of these degree of depth practical logging data, and be worth divided by the resulting standardization acoustic amplitude of step 8 with this, just obtained the 3ft acoustic amplitude after the eccentric correction.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790939A (en) * | 2015-02-10 | 2015-07-22 | 中国海洋石油总公司 | Method and device for obtaining cementation rate |
| CN111980676A (en) * | 2020-09-15 | 2020-11-24 | 中国石油大学(华东) | Method for evaluating well cementation quality through array acoustic logging and processing device |
| CN112001095A (en) * | 2020-09-09 | 2020-11-27 | 中石化石油工程技术服务有限公司 | Method for establishing well cementation quality evaluation index and well cementation quality evaluation method |
| GB2585328A (en) * | 2018-12-14 | 2021-01-13 | Darkvision Tech Inc | Correcting for eccentricity of acoustic sensors in wells and pipes |
| CN114198083A (en) * | 2020-08-31 | 2022-03-18 | 中石化石油工程技术服务有限公司 | Eight-sector cement bond logging data correction method |
| CN115788407A (en) * | 2022-11-14 | 2023-03-14 | 中国石油大学(华东) | Method for inverting instrument eccentricity and sector cement bond conditions by utilizing azimuthal acoustic logging |
| CN115853500A (en) * | 2022-11-14 | 2023-03-28 | 中国石油大学(华东) | Method for inverting instrument eccentricity and sector cement bond condition by matching casing wave azimuth arrival time and amplitude directivity pattern |
| CN115992692A (en) * | 2023-03-23 | 2023-04-21 | 中海油田服务股份有限公司 | Cement ring thickness measuring method and device, electronic equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294440B1 (en) * | 1986-12-24 | 1992-02-26 | Institut Français du Pétrole | Probe and its multidirectional anchoring device in a well |
| CN1098472A (en) * | 1993-08-06 | 1995-02-08 | 西安石油勘探仪器总厂 | Acoustic cement bond cementing quality logging method |
| US20010047865A1 (en) * | 2000-03-29 | 2001-12-06 | Benn Voll | Method of packing extended reach horizontal wells |
| US20100154531A1 (en) * | 2008-12-19 | 2010-06-24 | Pathfinder Energy Services, Inc. | Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements |
| CN102071932A (en) * | 2010-12-22 | 2011-05-25 | 杭州瑞利声电技术公司 | Acoustic system structure of acoustic velocity-segmented cement bond logging tool and logging method |
| CN102330551A (en) * | 2011-09-07 | 2012-01-25 | 中国石油集团长城钻探工程有限公司 | Method and system for rectifying sound wave pressure in sound wave amplitude well logging |
-
2013
- 2013-02-26 CN CN201310059388.8A patent/CN103114844B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294440B1 (en) * | 1986-12-24 | 1992-02-26 | Institut Français du Pétrole | Probe and its multidirectional anchoring device in a well |
| CN1098472A (en) * | 1993-08-06 | 1995-02-08 | 西安石油勘探仪器总厂 | Acoustic cement bond cementing quality logging method |
| US20010047865A1 (en) * | 2000-03-29 | 2001-12-06 | Benn Voll | Method of packing extended reach horizontal wells |
| US20100154531A1 (en) * | 2008-12-19 | 2010-06-24 | Pathfinder Energy Services, Inc. | Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements |
| CN102071932A (en) * | 2010-12-22 | 2011-05-25 | 杭州瑞利声电技术公司 | Acoustic system structure of acoustic velocity-segmented cement bond logging tool and logging method |
| CN102330551A (en) * | 2011-09-07 | 2012-01-25 | 中国石油集团长城钻探工程有限公司 | Method and system for rectifying sound wave pressure in sound wave amplitude well logging |
Non-Patent Citations (5)
| Title |
|---|
| 吕秀梅等: "井内大偏心声源激发声场的数值模拟与分析", 《中国地球物理学会年刊2002——中国地球物理学会第十八届年会论文集》, 1 October 2002 (2002-10-01), pages 417 * |
| 宋若龙等: "8扇区SBT仪器偏心测井数值模拟", 《中国地球物理学会第二十七届年会论文集》, 17 October 2011 (2011-10-17), pages 598 * |
| 宋若龙等: "非轴对称套管井中声场的并行有限差分模拟", 《地球物理学报 》, vol. 53, no. 11, 15 November 2010 (2010-11-15), pages 2767 - 2775 * |
| 沈建国等: "井内偏心声源激发的三维声场的数值研究", 《地球物理学报》, vol. 43, no. 2, 17 March 2000 (2000-03-17), pages 279 - 285 * |
| 沈永进等: "偏心声源激发的声波实验", 《石油仪器》, vol. 24, no. 5, 15 October 2010 (2010-10-15), pages 50 - 52 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790939A (en) * | 2015-02-10 | 2015-07-22 | 中国海洋石油总公司 | Method and device for obtaining cementation rate |
| US11578591B2 (en) | 2018-12-14 | 2023-02-14 | Darkvision Technologies Inc | Correcting for eccentricity of acoustic sensors in wells and pipes |
| GB2585328A (en) * | 2018-12-14 | 2021-01-13 | Darkvision Tech Inc | Correcting for eccentricity of acoustic sensors in wells and pipes |
| GB2585328B (en) * | 2018-12-14 | 2021-07-21 | Darkvision Tech Inc | Correcting for eccentricity of acoustic sensors in wells and pipes |
| CN114198083A (en) * | 2020-08-31 | 2022-03-18 | 中石化石油工程技术服务有限公司 | Eight-sector cement bond logging data correction method |
| CN112001095A (en) * | 2020-09-09 | 2020-11-27 | 中石化石油工程技术服务有限公司 | Method for establishing well cementation quality evaluation index and well cementation quality evaluation method |
| CN112001095B (en) * | 2020-09-09 | 2023-08-04 | 中国石油化工集团有限公司 | Method for establishing well cementation quality evaluation index and well cementation quality evaluation method |
| CN111980676A (en) * | 2020-09-15 | 2020-11-24 | 中国石油大学(华东) | Method for evaluating well cementation quality through array acoustic logging and processing device |
| CN111980676B (en) * | 2020-09-15 | 2023-11-03 | 中国石油大学(华东) | Method and processing device for evaluating well cementation quality by array acoustic logging |
| CN115788407A (en) * | 2022-11-14 | 2023-03-14 | 中国石油大学(华东) | Method for inverting instrument eccentricity and sector cement bond conditions by utilizing azimuthal acoustic logging |
| CN115853500A (en) * | 2022-11-14 | 2023-03-28 | 中国石油大学(华东) | Method for inverting instrument eccentricity and sector cement bond condition by matching casing wave azimuth arrival time and amplitude directivity pattern |
| CN115788407B (en) * | 2022-11-14 | 2024-06-18 | 中国石油大学(华东) | Method for inverting instrument eccentricity and sector cement bond condition by using azimuth acoustic logging |
| CN115992692A (en) * | 2023-03-23 | 2023-04-21 | 中海油田服务股份有限公司 | Cement ring thickness measuring method and device, electronic equipment and storage medium |
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