Joint velocity and event location inversion workflow in microseismic reservoir monitoring

Takashi Mizuno, Joel Le Calvez, Manish Lal Khaitan, Giulia Barisione, Irina-Tulia Stoia, Prakash Ranjan, Stefano Clerico, Xinyuan Li, Zheyuan Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... Alberta, Canada (Perez, 2019) where a 20 3C geophone accelerator array was deployed at the bottom of the well. We located events using a migration...

What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

... only in areas of special interest, but if it is not used on reconnaissance lines many potential traps will be missed. The geophone group intervals...

Milestones in Angolas Oil History

Tako Koning

GEO ExPro Magazine

... 26 Geo ExPro May 2012 GPS and clock Recording system Memory Lithium-ion battery pack Geophone...

Monitoring of CO2 plume movement using time-lapse distributed acoustic sensing (DAS) data

Tuhin Bhakta, Bob Paap, Vincent Vandeweijer, Trond Mannseth

International Meeting for Applied Geoscience and Energy (IMAGE)

... to both horizontal and borehole DAS data. Here, the noise level is estimated from co-located downhole geophone and DAS data as observed at the FORGE site...

The 'Geoseis' System: Seismic Prospecting with Detonating Cord - A Line Energy Source

D. W. Thompson

Petroleum Exploration Society of Australia (PESA)

.... If detonating cord is initiated from the centre into a split recording spread , a geophone on the left side of the spread will not see detonating cord...

Geological Methods for Evaluation in a Brave New World … Unconventional Reservoir Monitoring

K. Christopher Dick, James Hnat, Deniz Cakici, Abhijit Mookerjee, Ben Stephenson

Unconventional Resources Technology Conference (URTEC)

... of the events from the geophone array. When we compare this microseismically derived SRV (mSRV) to the production rates of the wells, we come up with some...

High-Temperature Geothermal Well Logging Techniques in Japan

Toshinobu Itoh

Circum Pacific Council Publications

... flowmeter-caliper 1 11/16 2 320 500 20 Borehole sampler 4 5 / 2 275 500 20 Steering tool & Tri-Ax geophone sonde 4 5 / 2 275 500 4...

Section Six: Use of Seismic on Diapiric Structures

New Orleans Geological Society

... (1985) described both techniques. Another survey type involves placing a geophone in a borehole within the salt at appropriate depths, while...

New Seismic Method in Populated Areas (A Case Study in the Surabaya Area, East Java, Indonesia)

Suyitno Patmosukismo, A. Syahbuddin, G. Alameda

Indonesian Petroleum Association

... lengths radial noises, that can disturb the reflected signal, it is wishable to use a geophone pattern as long as possible and geophones with a high...

DAS: The survival toolkit for geophysicists in the wilderness of unconventionals

Ge Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... fracturing and can serve as seismic sources for imaging purposes (e.g., Grechka et al., 2017). However, due to sparse spatial coverage of geophone receivers...

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

... Geophone 25 m 25 m Figure 1 - Two-dimensional model with constant velocity layers. Location of the source S and receiver G of the central ray...

Graph-space optimal transport-based 3D elastic FWI for near-surface seismic applications

Dmitry Borisov, Richard D. Miller, Shelby L. Peterie, Julian Ivanov, Anthony M. Hoch, Steven D. Sloan

International Meeting for Applied Geoscience and Energy (IMAGE)

... by a single line of 72 receivers from 7 m to 78 m, and spaced 1 m apart. Each receiver station was occupied by a vertical geophone with a 4.5 Hz...

Efficient physics-informed Bayesian inversion of VSP and hydrofrac data

Tian Qiao, George Turkiyah, Gerard T. Schuster

International Meeting for Applied Geoscience and Energy (IMAGE)

... propagating from trial source points to each geophone. This allows for an inexpensive estimate of the posterior probability function. These Green...

Reservoir Modeling and Forecasting Shale Multi-Stage Stimulation with Multi-disciplinary Integration

Atif Malayalam, Abhijit Gangopadhyay, Coulibaly Aboubakar, Herb Sebastian, Don Woodward

Unconventional Resources Technology Conference (URTEC)

.... A 3-component geophone array comprising of 38 geophones spaced at approximately 50 feet were deployed in the observation well to the west...

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

... (Kopty 2020). It utilised one vibroseis truck as the energy source to generate two sweeps for every logging circle and used a surface geophone...

3D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

Zhaolun Liu, Jrgen Hoffmann, Frederik J. Simons, Jeroen Tromp

International Meeting for Applied Geoscience and Energy (IMAGE)

...-component (4-C) data. In our study, we used only the three-component (3-C) geophone data, after 3-D rotation to the geographic orientation. The initial...

Measuring seasonal velocity variations on an urban DAS array

Jihyun Yang, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

... testing of modular borehole monitoring with simultaneous distributed acoustic sensing and geophone vertical seismic profiles at Citronelle, Alabama...

Real-time hydraulic fracturing monitoring using deep learning clustering of microseismic data

Chenglong Duan, Lianjie Huang, Michael Gross, Michael Fehler, David Lumley

International Meeting for Applied Geoscience and Energy (IMAGE)

... stimulation in wells 6SU and 6SM, with a sampling frequency of 4 kHz. The geophone array combination of 5SM-1 and 170P were used to record microseismic data...

The Maurice Field: New Gas Reserves from Buried Structure Along the Oligocene Trend of Southwestern Louisiana

Michael P. Prescott

Houston Geological Society Bulletin

... on Figure 7. Line 4 was part of a speculative seismic program shot for CONTINENTAL SEISMIC SERVICE during 1985. The data are 24 fold with far geophone...

Reservoir Modelling and Amplitude Analysis, South Lho Sukon, N. Aceh

J. C. den Boer, R. O. Ugland, W. Soeria Atmaja

Indonesian Petroleum Association

..., the decision was made to record the VSP with a three-component well geophone. A portion of the FWS is shown in Figure 11. This tool, the Schlumberger LSS...

The Austin Chalk - An Overview

Doug Haymond

Houston Geological Society Bulletin

... short-shot point and geophone group intervals, commonly 330' and 110' respectively, which results in 20-fold data; a high frequency energy source...

Source Mechanism Characterization of Microseismic Data at Pouce Coupe Field, Alberta, Canada

Matthew J. Lee, Shawn Maxwell, Thomas L. Davis

Unconventional Resources Technology Conference (URTEC)

... event across the receivers in a horizontal array, there will be a change in azimuth from source to receiver for each 3C geophone. Amplitude ratio...

Detection of shallow sedimentary structure of Yigong Lake in Tibetan Plateau using distributed acoustic sensing

Jian Zhou, Jizhong Yang, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and dense measurements with relatively low cost in different areas. For example, DAS can be used instead of geophone for VSP surveys (Mateeva et al...

Tomographic waveform inversion (TWI) applied to real seismic data

Jlio Oliva Frigrio, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... and vertical geophone components. The adaptive filter was a simple timederivative of the hydrophone traces followed by the application of one single...

Geophysical Case History, Prudhoe Bay Field

R. N. Specht, A. E. Brown, C. H. Selman, J. H. Carlisle

Pacific Section SEPM

... problems were prevalent during this era: (1) In summer, the thawed condition produced poor geophone coupling, and high noise levels ensued from wind...