Ralph Michael Bridle

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Ralph Michael Bridle
Ralph Bridle headshot.jpg
Membership Life Member
BSc university Camborne School of Mines, Cornwall, England

Biography 2015 [1]

Ralph Bridle received a B.Sc. in mining and ACSM (1979) from Camborne School of Mines,Cornwall, UK. His first experience was as a student and guest at Kamativi Tin Mines, Rhodesia (1978), and he returned to work at Shamva gold mine, Rhodesia, as a graduate mining engineer (1979–1980). subsequently turned to geophysics and experienced working on field acquisition crews and in processing centers. This was in Punjab and Baluchistan, Pakistan (1980 –1982), Chittagong Hill Tracts, Bangladesh (1982–1983), Irian Jaya, Indonesia (1984), Tripoli, Libya (1984–1986), Cooper Basin, Australia (1986–1987), Tunis, Tunisia (1987), Muscat Oman (1987–1988), Northern Somalia (1988) and Port Harcourt, Nigeria (1988–1991). He is a geophysical consultant with Saudi Aramco in the near-surface modeling unit of the geophysical data processing division in Dhahran, Saudi Arabia, where he has been a resident since 1991. He is passionate in teaching the young professionals on whom the industries’ future will depend. His interests include refraction statics, tomography, and geostatistics, of which he has authoredand coauthored papers in GEOPHYSICS, Geophysical Prospecting, Near-Surface Geophysics, and presented at conferences. He has been very active in the Dhahran Geoscience Society and SEG, was awarded SEG Life Membership in 2014, and is also a member of EAGE and AAPG

SEG Life Membership 2014 [2]

As chairman of the SEG Membership Committee, Ralph Michael Bridle introduced reforms that made the committee global in its members, and he was successful in implementation of the waiver of references for Active members. His legacy while chairman of the Global Affairs Committee is the first r GAC vision statement that was acceptable to the Executive Committee and the establishment of Global Sessions as successors to the former International Showcase. Ralph is cochair of the first SEG/DSG near-surface modeling and imaging workshop in Bahrain and is the 2014 Honorary Lecturer for the Middle East and Africa region.

Biography Citation for SEG Life Membership 2014

Contributed by Aldo Vesnaver

The contributions of Ralph Bridle to the geophysical community and to SEG specifically have been sustained for a long time span — they date to the past millennium. He was on the executive committee of Dhahran Geoscience Society (DGS), the local chapter of SEG in Saudi Arabia, for a decade, covering almost all possible positions there: secretary, publications, vice president, president (in 2008–2009), and so on. During that time, he contributed to establishing the SEG Challenge Bowl in the Middle East and organized several courses and lecturers’ visits.

Ralph served SEG as national representative for Saudi Arabia on the Global Affairs Committee, contributing to expanding the SEG presence in the Middle East by providing advice for establishing the new SEG office in that region. He was elected chairman of that committee for 2010–2011. He also had been chairman of the SEG Membership Committee in 2007–2008.

In both positions, he promoted several initiatives to make SEG more and more inclusive and member driven. For example, during his chairmanship, the membership procedures were simplified to encourage qualified professionals to become active members. More recently, he actively contributed to the adoption of the new SEG Constitution while serving on the Council Ad Hoc Committee in 2011–2012.

The global view of our profession is marked in Ralph’s personal experience. He received a B.Sc. (honors) in mining and ACSM from Camborne School of Mines, Cornwall, England, in 1979. His first experience was as a student and a guest at Kamativi tin mines, Rhodesia, in 1978, and he worked at Shamva gold mine, Rhodesia, as a graduate mining engineer in 1979–1980.

Ralph subsequently turned to geophysics, working on field crews and in processing centers in Punjab and Baluchistan, Pakistan, 1980–1982; Chittagong Hill Tracts, Bangladesh, 1982–1983; Irian Jaya, Indonesia, 1984; Tripoli, Libya, 1984–1986; Cooper Basin, Australia, 1987–1988; Tunis, Tunisia, 1987; Muscat, Oman, 1987–1988; northern Somalia, 1988; and Port Harcourt, Nigeria, 1988–1991. Since 1991, Ralph has modeled the near surface for static corrections in Dhahran, Saudi Arabia.

Ralph has shared technical knowledge over the years too. In the company he works for, Saudi Aramco, he has trained young professionals in seismic data processing. Besides publishing several papers in international journals, he was a convener of the DGS/SEG Workshop on Near Surface Imaging and Modeling in Manama in 2014. Ralph is an adviser to the chairman of the SEG Council, so his commitment to SEG continues.


  1. Contributors GEOPHYSICS Mar 2015, Vol. 80, No. 2, pp. Z43-Z50.
  2. SEG Honors and Awards Ceremony in Official Program and Exhibitors Directory, SEG Denver 26-31 October 2014 p.36-49.