Guan, Xu

Collaborating Authors

A Systematic Approach to Fracture Propagation Simulation with the Integrated Natural Fracture and Geomechanical Model

OnePetroMay, 2023

Abstract In recent years, tight sandstone gas as one of the important types of unconventional resources, has been rapid explored and developed. There are large-scale tight sandstone gas production in Sichuan Basin, Ordos Basin, Bohai Bay Basin, Songliao Basin and other basins, and it has become a key part in the area of increasing gas reserves and production in China. Due to the influence of the reservoir characteristics, tight gas reservoirs have low porosity and permeability, and the tight gas can only be effectively developed by improving the conductivity around the wellbore. Therefore, it is required to perform hydraulic fracturing after the completion of horizontal well drilling to improve the permeability of reservoir. It can be seen that hydraulic fracturing is the core technology for efficient development of tight gas resources. The implementation of hydraulic fracturing scheme directly determines the horizontal well production and EUR. This paper describes the workflow of 3D geomechanical modeling, technical application for Well YQ 3-3-H4 reservoir stimulation treatment, and carries out hydraulic fracture propagation simulation research based on 3D geomechanical model. This paper also compares the micro-seismic data with the simulation results, and the comparison results show that the propagation model is consistent with the micro-seismic monitoring data, which verifies the accuracy of the model. This paper clarifies the distribution law of hydraulic fractures in the three-dimensional space of horizontal wells in YQ 3 block, and the research results can be used to provide guidance and suggestions for the optimization of fracturing design of horizontal wells in tight gas of Sichuan Basin.

OnePetro

doi: 10.2118/214619-MS

SPE

SPE-214619-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country: Asia > China > Sichuan (0.71)

Genre: Research Report (0.54)

Geologic Time: Phanerozoic > Mesozoic (0.47)

Geophysics: Geophysics > Seismic Surveying > Passive Seismic Surveying > Microseismic Surveying (1.00)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

Asia > China > Shanxi > Ordos Basin (0.99)
Asia > China > Shaanxi > Ordos Basin (0.99)
Asia > China > Gansu > Ordos Basin (0.99)
(5 more...)

SPE Disciplines:

Well Drilling > Wellbore Design > Wellbore integrity (1.00)
Well Completion > Hydraulic Fracturing (1.00)
Reservoir Description and Dynamics > Unconventional and Complex Reservoirs > Tight gas (1.00)
(2 more...)

Technology:

Information Technology > Modeling & Simulation (0.35)
Information Technology > Sensing and Signal Processing (0.34)

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Prestack simultaneous inversion for gas-bearing dolomite reservoir prediction: A case study from Western China

Hao, Jinjin (Northwest Branch Institute, Petrochina Research Institute of Petroleum Exploration and Development) | He, Weiwei (Northwest Branch Institute, Petrochina Research Institute of Petroleum Exploration and Development) | Guan, Xu (Exploration and Development Research Institute, Petrochina Southwest Oil & Gas Field) | Jiang, Ren (Research Center of Sichuan Basin, Petrochina Research Institute of Petroleum Exploration and Development)

OnePetroSeptember, 2019

ABSTRACT This paper presents a case study of gas-bearing dolomite reservoir prediction using prestack simultaneous inversion in Longwangmiao Formation of Western China. The main objective of the study was to identify distribution of gas-bearing dolomite reservoir within Longwangmiao Formation. Gas-bearing dolomite reservoir can cause obvious change of P-impedance and density. The two parameters discriminating gas-bearing dolomite reservoir can be obtained by prestack simultaneous inversion method with strict quality procedures. These procedures mainly include prestack gathers conditioning, rock-physics analysis, AVO modeling and prestack simultaneous inversion. By using prestack simultaneous inverison, P-impedance, S-impedance and density are obtained simultaneously. The distribution of gas-bearing dolomite reservoir is identified by P-impedance verses density cross-plotting from well data. The final prediction result indicates the existence of gas-bearing dolomite in the upper part of Longwangmiao Formation, which is consistent with well data, and has good match with the well drilled after the prediction procedure. So, prestack simultaneous inversion represents effective method to predict gas-bearing dolomite reservoir. Presentation Date: Wednesday, September 18, 2019 Session Start Time: 9:20 AM Presentation Time: 11:00 AM Location: Poster Station 7 Presentation Type: Poster

OnePetro

doi: 10.1190/segam2019-3215439.1

SEG

SEG-2019-3215439

SEG International Exposition and Annual Meeting