Simulation logging experiment and interpretation model of array production logging measurements in a horizontal well

Hong-wei, Song; Guo, Hongjian; Shi, Xiaohu; Shi, Hangyu

doi:10.1007/s11770-021-0892-4

Cited by 5 publications

(6 citation statements)

References 10 publications

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Section: Experiments Setupmentioning

confidence: 99%

“…Then, the gas phase and liquid phase fluid enter the mixing tank, after mixing into the simulation wellbore. Through the online monitoring of the flow of the fluid flow parameters, and data into the computer, the console interface is used to adjust the gas phase liquid valve opening, and according to the experiment plan, the parameters are set by adjusting the input of the gas phase and liquid phase flow [41]. The wellbore angle was 90 degrees (a vertical well, in relation to the horizontal d tion of the ground), the experimental fluid medium was air and tap water, and the e iment was carried out in a wellbore with an inner diameter of 124 mm.…”

Section: Experiments Setupmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Monitoring of Low-Yielding Gas Wells by Combining Ultrasonic Sensor and HGWO-SVR Algorithm

Wang,

Song,

Shi

et al. 2023

Processes

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As gas wells enter the middle and late stages of production, they will become low-yielding gas wells due to fluid loading and insufficient formation pressure. For many years, there has been a lack of effective dynamic monitoring methods for low-yielding gas wells, and it is difficult to determine the production of each phase in each production layer, which makes further development face great uncertainty and a lack of basis for measurement adjustment. In order to solve this problem, this paper proposes an intelligent dynamic monitoring method suitable for low-yielding gas wells, which uses an ultrasonic Doppler logging instrument and machine learning algorithm as the core to obtain the output contribution of each production layer of the gas well. The intelligent dynamic monitoring method is based on the HGWO-SVR algorithm to predict the flow of each phase. The experimental data are selected for empirical analysis, and the effectiveness and accuracy of the method are verified. The research shows that this method has good application prospects and can provide strong technical support for gas reservoir production stability and development adjustment.

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Section: Experiments Setupmentioning

confidence: 99%

Section: Experiments Setupmentioning

confidence: 99%

Dynamic Monitoring of Low-Yielding Gas Wells by Combining Ultrasonic Sensor and HGWO-SVR Algorithm

Wang,

Song,

Shi

et al. 2023

Processes

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show abstract

“…The vertical depth of horizontal wells is also different, resulting in a more complex fluid flow in the wellbore. The production profile test of horizontal wells is a highly challenging task due to the influence of various factors such as temperature and pressure. − …”

Section: Introductionmentioning

confidence: 99%

“…The production profile test of horizontal wells is a highly challenging task due to the influence of various factors such as temperature and pressure. 15 − 17…”

Section: Introductionmentioning

confidence: 99%

Study on an Anti-adsorption Micromaterial Tracer System and Its Application in Fracturing Horizontal Wells of Coal Reservoirs

Liu

Tian

et al. 2023

ACS Omega

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The high adsorption capacity of coal reservoirs poses a challenge to the evaluation of productivity and output profiles for each segment of fractured horizontal wells using tracers. In this study, the microstructure of a coal sample from block B and its absorption character to a micromaterial tracer are analyzed first. Then, an antiadsorption micromaterial tracer system which is suitable for block B is proposed by evaluating different types of complexing agents and extractant agents. The system comprises micromaterial tracers (200 ppb) + ethylenediaminetetraacetic acid tetrasodium (EDTA-4Na in short) (0.01%) + di(2-ethylhexyl) phosphate (HDEHP in short) (0.001%), and its anti-adsorption character of the system is analyzed. The concentration dynamics of micromaterial tracers are analyzed by the flowback fluid testing of one fracturing well and two adjacent wells. Then, a judging method for productivity and connectivity of each segment of horizontal wells is established. Moreover, the anti-adsorption micromaterial tracer system judgment method is employed to analyze the staged fracturing performance of horizontal well B1 in the coal reservoir of block B. Eight types of micromaterial tracers are utilized to label the fluid in each fracturing segment for assessing the connectivity between well B1 and adjacent wells B1-1 and B1-2. The results show that the anti-adsorption micromaterial tracer system exhibits minimal adsorption loss and can be well applied in segment monitoring in the horizontal fracturing well of coal reservoirs. The main productive segments of well B1 are #1, #4, and #8. Well B1 exhibits good connectivity with adjacent well B1-1 in segments #1, #4, #6, and #8. Conversely, all segments of well B1 exhibit poor connectivity with adjacent well B1-2. The results can provide a dependable reference for optimizing fracturing parameters, well spacing, and productivity evaluation in coal reservoirs. The results obtained in this study are consistent with the results obtained by using the four-dimensional (4D in short) image monitoring technology, which proves the good accuracy and reliability of the micromaterial tracer monitoring method.

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“…The application of this fracturing technology makes horizontal wells also show multi-segment and multi-cluster fluid production after fracturing. However, because the single well capacity of horizontal wells in low permeability reservoirs is generally low [4][5] [6], for example, the horizontal production of a single well in Daqing oil field is around 20 m 3 /d [7][8] so the single section production may be lower than 0.1 m 3 /d under the horizontal well multi-segment multi-cluster fracturing condition [9] [10]. In this low fluid production situation, there is no corresponding flow testing technique in China to meet this flow range and lower flow limit [11].…”

Section: Introductionmentioning

confidence: 99%

Simulation research on a new method of phase-regulated single-phase flow measurement for low production horizontal well

Gao

2023

Third International Conference on Mechanical Design and Simulation (MDS 2023)

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In order to solve the problems of high lower limit and low accuracy of existing flow testing techniques for horizontal well output profiles, a phase-regulated volumetric flow meter was designed and a single-phase flow measurement method was proposed. Firstly, Gambit was used to establish the simulation model of the flowmeter; then the finite element simulation software FLUENT was used to study the dynamic regulation effect of the flowmeter for oil and water two-phase flow under the conditions of different flow rates and water content, which verified the feasibility of the flowmeter; finally, according to the simulation monitoring data, the response value of the array conductivity sensor under the oil and water measurement mode was obtained respectively with the change of liquid level, and finally the single-phase flow rate of oil and water was deduced.

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Simulation logging experiment and interpretation model of array production logging measurements in a horizontal well

Cited by 5 publications

References 10 publications

Dynamic Monitoring of Low-Yielding Gas Wells by Combining Ultrasonic Sensor and HGWO-SVR Algorithm

Dynamic Monitoring of Low-Yielding Gas Wells by Combining Ultrasonic Sensor and HGWO-SVR Algorithm

Study on an Anti-adsorption Micromaterial Tracer System and Its Application in Fracturing Horizontal Wells of Coal Reservoirs

Simulation research on a new method of phase-regulated single-phase flow measurement for low production horizontal well

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