LOTT RANCH 3D PROJECT

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The Lott Ranch 3D seismic prospect located in Garza County, Texas is a project initiated in September of 1991 by the J.M. Huber Corp., a petroleum exploration and production company. By today's standards the 126 square mile project does not seem monumental, however at the time it was conceived it was the most intensive land 3D project ever attempted. Acquisition began in September of 1991 utilizing GEO-SEISMIC, INC., a seismic data contractor. The field parameters were selected by J.M. Huber, and were of a radical design. The recording instruments used were GeoCor IV amplifiers designed by Geosystems Inc., which record ... continued below

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13 pages

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Lawrence, Larry & Miller, Bruce September 1, 2004.

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Description

The Lott Ranch 3D seismic prospect located in Garza County, Texas is a project initiated in September of 1991 by the J.M. Huber Corp., a petroleum exploration and production company. By today's standards the 126 square mile project does not seem monumental, however at the time it was conceived it was the most intensive land 3D project ever attempted. Acquisition began in September of 1991 utilizing GEO-SEISMIC, INC., a seismic data contractor. The field parameters were selected by J.M. Huber, and were of a radical design. The recording instruments used were GeoCor IV amplifiers designed by Geosystems Inc., which record the data in signed bit format. It would not have been practical, if not impossible, to have processed the entire raw volume with the tools available at that time. The end result was a dataset that was thought to have little utility due to difficulties in processing the field data. In 1997, Yates Energy Corp. located in Roswell, New Mexico, formed a partnership to further develop the project. Through discussions and meetings with Pinnacle Seismic, it was determined that the original Lott Ranch 3D volume could be vastly improved upon reprocessing. Pinnacle Seismic had shown the viability of improving field-summed signed bit data on smaller 2D and 3D projects. Yates contracted Pinnacle Seismic Ltd. to perform the reprocessing. This project was initiated with high resolution being a priority. Much of the potential resolution was lost through the initial summing of the field data. Modern computers that are now being utilized have tremendous speed and storage capacities that were cost prohibitive when this data was initially processed. Software updates and capabilities offer a variety of quality control and statics resolution, which are pertinent to the Lott Ranch project. The reprocessing effort was very successful. The resulting processed data-set was then interpreted using modern PC-based interpretation and mapping software. Production data, log data, and scout ticket data were integrated with the 3D interpretations to evaluate drilling opportunities resulting in an initial three well drilling program. Thousands of miles of signed bit data exist. Much of this data was processed during a time when software and hardware capabilities were either incapable or cost prohibitive to glean the full potential of the data. In fact in some circles signed bit gained an undeserved reputation for being less than optimum. As a consequence much of the older signed bit data sits on the shelf long forgotten or overlooked. With the high cost of new acquisition and permitting it might behoove other exploration companies to reconsider resurrecting perfectly viable existing volumes and have them reprocessed at a fraction of the cost of new acquisition.

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13 pages

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INIS; OSTI as DE00835649

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  • Other Information: PBD: 1 Sep 2004

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  • Report No.: NONE
  • Grant Number: FG26-99BC15250
  • DOI: 10.2172/835649 | External Link
  • Office of Scientific & Technical Information Report Number: 835649
  • Archival Resource Key: ark:/67531/metadc788484

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • September 1, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • Jan. 3, 2017, 12:49 p.m.

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Lawrence, Larry & Miller, Bruce. LOTT RANCH 3D PROJECT, report, September 1, 2004; United States. (digital.library.unt.edu/ark:/67531/metadc788484/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.