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After graduating with honors in Electrical Engineering from Bristol University U.K., Tony Cheshire joined Seismograph Services Ltd in 1975 as an Assistant Observer. He spent nine years with the company in the positions of Senior Observer, Party Chief and Instrument Supervisor. During three years as Instrument Supervisor he traveled extensively throughout the world to supervise technical and logistical aspects of S.S.L.s land seismic data acquisition crews, twenty nine in all located in fourteen countries.
In 1984 Tony emigrated to Australia and spent the next two and a half years working as an exploration consultant undertaking supervisory work for Pancontinental Petroleum, Sydney Oil and BP Petroleum Development in Australia and Papua New Guinea.
When the 1986 oil price crash resulted in a marked reduction in exploration activity Tony rejoined the contracting industry and spent a year with GES, an Australian company specializing in dynamite seismic surveys and which he assisted in fielding the first Vibroseis Crew. In 1988 he joined Petty-Ray as Australia Senior Field Service Engineer.
In early 1990 Tony formed Seismic Consultants Group Pty. Ltd. and has subsequently supervised crews for Petrocorp, BHP Petroleum, Command Petroleum, Santos, Magellan Petroleum, Petromer Trend, Occidental, Tecpetrol, Oil Search, Conoco, Santos and Chevron in Thailand, Myanmar (Burma), Papua New Guinea, Australia and Venezuela.
Tony's most recent project was in Papua New Guinea for Santos Asia Pacific in 1997, 98 and 99. On this 18 month project Tony held the position of Senior Client Field Representative and was responsible for the planning, formation and mobilisation of an in-house seismic crew. This crew successfully completed five surveys in the PNG Highlands, all of which were under budget and conducted without lost time injury. Following crew formation and mobilisation Tony's main responsibility was as Crew Supervisor overseeing all aspects of field crew operations and logistics together with technical aspects of crew operations and mobilisation. He also worked in the field as relief HS&E coordinator and relief Party Chief.
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In recent years Tony has performed pre-survey and project management for Santos Asia Pacific, Exxon Exploration Company and Chevron Niugini. His most recent project was in Papua New Guinea for Santos Asia Pacific in 1997, 98 and 99. On this 18 month project Tony held the position of Senior Client Field Representative and was responsible for the planning, formation and mobilisation of an in-house seismic crew. This crew successfully completed five surveys in the PNG Highlands, all of which were under budget and conducted without lost time injury. Following crew formation and mobilisation Tony's main responsibility was as Crew Supervisor overseeing all aspects of field crew operations and logistics together with technical aspects of crew operations and mobilisation. He also worked in the field as relief HS&E coordinator and relief Party Chief. For this project Tony assisted in pre-survey tender evaluation, budget and AFE calculation. Once underway he performed the majority of the project management administration inculting budget and costing calculation using Microsoft Project, invoice administration and cost tracking.
Following the success of these surveys the crew was transferred to the administration of Chevron Niugini to whom Tony is currently contracted as Seismic Operations Supervisor.
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Tony has extensive experience on portable seismic crews in many parts of the world including swamp crews in Nigeria, fully portable jungle crews in Sarawak, Brunei, Sumatra and Cameroon, and heli-portable crews in West Irian, Papua New Guinea, Peru, Venezuela and New Zealand.
In the years from 1975 to 1981 Tony was a junior observer through to senior observer on portable crews in Brunei and Sarawak and swamp crews in Nigeria. Following this he served as an instrument supervisor, starting and maintaining crews in all of Seismograph Service Ltd.'s regions of operation.
In recent years Tony has performed duties as a field QC consultant on heli-portable crews in Papua New Guinea in both highland and foreland areas and the jungles of Venezuela.
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As well as gaining a detailed knowledge of the operation, capabilities and limitations of various Vibroseis equipment Tony has experience in a range of Vibroseis data acquisition, parameter evaluation and performance testing techniques. These include Stack-Array recording spreads, varisweep, phase shift harmonic suppression, vibrator polarity verification, far-field signature vibrator similarity comparison, similarity test computer analysis, sweep comparison tests, vibrator array comparison tests, correlator parameter selection, in field noise edit parameter selection and diversity stacking.
In his position as Instrument Supervisor with Seismograph Services (England) Ltd. and as Senior Field Service Engineer with GES Pty., Petty-Ray Geophysical and Haliburton Geophysical Services, Tony's experience with Vibroseis has been extensive and detailed. With SSL he was directly involved with the recording systems and vibrators on six Vibroseis crews. He commissioned GES's first Vibroseis crew in 1987 and maintained Petty-Ray's Vibroseis crews in Australia from 1988 to 1990. With HGS he maintained and commissioned Vibroseis crews in Australia and Myanmar. As a consultant he has supervised Vibroseis crews in Thailand, Myanmar and Australia.
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From 1979 to 1982 Tony was Senior Observer on Seismograph Service Ltd's shallow marine crews in Nigeria. This Telseis radio telemetry crew operated throughout the Niger Delta in various river, swamp, tidal and coastal areas. A unique feature of the crew was its use of a helium balloon to elevate the recording instrument antenna to increase radio range into mangrove swamp areas.
From 1982 to 1984, as an Instrument Supervisor, Tony supervised the technical aspects of all SSL's shallow marine operations worldwide; this provided a wide variety of experience of various techniques and conditions.
Tony's most recent shallow marine project was supervision of a 460 sq km 3D crew for Conoco Venezuela in 1997. Operating in water depths from 0 to 17 meters in the Gulf of Paria and utilizing Sercel 368 technology this 10 month survey combined air gun source in deeper water, drilled Dynoseis shot-holes in shallower waters, shallow water hydrophone ramming and OBC operations.
Another notable project in recent years was supervision of a Digiseis 200 survey in the mouth of the Turama River in Papua New Guinea. This area is noted for its 8 knot currents, 7 meter tides and tidal bore.
In 1995 Tony spent a period of five weeks as a company representative on a deep marine seismic vessel operating in the Java Sea north of Australia.
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Although Tony's principal qualifications as a field quality control supervisor are his extensive technical experience in land and shallow marine seismic data acquisition he is also familiar with and has experience in permitting and land and community relations. He is familiar with the permitting requirements set out in the Queensland Petroleum Act 1923-1983 and Regulations (Land), 1966 and has performed land and community relations liaison under the Petroleum Act (1980) of Papua New Guinea.
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