Welcome to the world of GeoDivining
the Hydrogeological, Mineral & Oil Exploration Consultancy that brings the Earth Sciences of Geology & Geophysics together with the
ancient arts of Water Divining & Dowsing
.

   
         

Welcome
to the world of
GeoDivining


Groundwater Surveys

 


The GEODIVINING METHOD

The method Doug Bates developed is designed to achieve and maintain the highest possible success rate.

His philosophy from the outset has been to remove as much as possible of the folklore and mystery from the practise of divining, and apply and develop the best techniques in a logical scientific way.

Geodiviners are thoroughly trained in this method, to a high standard that is constantly monitored by results, and upgraded and refined by experience.

The Geodivining approach is to take geoscience as far as practical, technical and economic limitations will allow, then to fill in the gaps, and vital target-specific details using a series of advanced precision divining techniques. Surveys are typically conducted in 3 logical stages, before drilling: Geological and Hydrogeological research; Target-specific Map-dowsing; and Target-specific Divining on site.

Our reports provide all the information required for digging and drilling contractors, and development work may often be done without the Geodiviner on site, but we do also offer a 'measure while drilling' well logging and supervisory service.

When commissioned to conduct a survey, the first thing a Geodiviner does is to find out exactly what your requirements are, and exactly what he is being asked to find. In the case of water, we need to know how much water you need each day, and what your peak consumption rate is likely to be; what water storage provision you have, if any; what the water is to be used for, and what particular qualities are considered ideal for such use. 

In most cases, of course, we assume we are looking for good quality potable water; and the quantity, or sustainable yield, is the single most important criterion.

From this information we can then set the target parameters in advance for the second and third stages, which is vital to making the best of our target-specific methods.

We also ask you to send us suitable maps of the area to be surveyed, or for your instructions to obtain such maps from the Ordnance Survey or other agency.

Stage 1 - Geological and Hydrogeological Research

The first stage of all geoprospecting surveys is to research all available maps and data on the local geology and hydrogeology of the area to be surveyed and its surroundings.

We hold a large stock of British Geological Survey 1:50 000 scale, and older 1:63 360 scale, geological maps covering most of the land area of the U.K. Although some areas are not covered on this scale, or are currently in the process of being re-surveyed, less detailed 1:250 000 and 1:625 000 scale maps are available covering the whole country. Hydrogeological maps of Scotland, England and Wales are also published by the B.G.S. in the 1:625 000 scale, and a few select aquifer areas are more comprehensively covered in the 1:100 000 scale.

Regional Geology and Hydrogeology guides are also available for immediate reference, and the B.G.S. has a very useful National Well Archive and enquiry service, as well as a wealth of other unpublished information to which we can refer when the need arises.

We also have hundreds of our own unpublished surveys relating to all parts of Scotland including the islands, along with proven drilling results from many of these, where we have found water in every rock formation that occurs in Scotland's richly varied geology.

We also hold a substantial collection of Geological and Hydrogeological maps of other parts of the world, especially North America, Southern Africa, and Australia

We research all the available information relevant to the survey, and produce a Geological Report with maps and cross-sections to illustrate geological formations and structures, and their relationship to the target resource we have been asked to find.

From this geological study, and largely from our own experience, we can formulate a clear idea of what to expect from the survey area, establish what chances we have of finding our specified target in that geological environment, determine what formations and obstructions to avoid, and decide what structures we should be looking for in the second and third stages of the survey.

The geological report helps us, you, and the drillers to understand what ground conditions we are likely to be dealing with. It prevents misunderstandings and misconceptions, and is instrumental in saving us from many of the pitfalls that await the unwary and geologically uneducated diviner.

Stage 2 - Target-specific Map-dowsing ( Divining on maps & aerial images )

Having got the general picture of what the geological environment has to offer us, we next get down to the brass tacks of accurately locating, delineating and assessing underground formations and structures that match the specified target.

The target can be as specific as you want; in fact the more specific the target is, the more precisely the divining can be done, and the greater the likelihood of achieving a successful result becomes.

Clarity is vital, and generalisation and ambiguity must be avoided.

Such is the nature of the Geodivining process.

This is where Geodivining reaches beyond conventional prospecting, using the Diviner's mind as a highly tuned and versatile geophysical sensor that operates in a way quite unlike any physical technology.

Unlike most geophysical instruments which detect anomalies of various kinds that must be analysed and interpreted for patterns and configurations that are characteristic of certain types of formation or structure, that raise the probability of the target being found or achieved within the anomalous zone with variable degrees of reliability and accuracy; Geodivining goes right to the point of identifying the exact location of almost any specified geophysical target and assessing its dimensions and qualities with precise efficiency.

Whatever requested target the Geodiviner sets his mind to, he will find with uncanny reliability, if it is there to be found.

Instead of employing an expensive and time-consuming series of narrow-range or single-parameter geophysical instruments, a Geodiviner has only to re-focus his or her mind to re-calibrate to a new target or parameter.

In a typical survey, a Geodiviner makes over 1000 individual measurements, up to 10 per minute, and mentally re-calibrates at will, from one target-specific parameter to another, any number of times.

Ideally, of course, the use of instruments and Geodivining should be integrated, to achieve the highest possible level of certainty about the target and its qualities; and indeed, we are actively working towards this aim in our more advanced mineral exploration and oil & gas exploration programs.

Water prospecting budgets, however, seldom extend to the use of geophysical surveying equipment; so the cheaper and (we believe we can prove) more effective Geodivining steps neatly into the breach.

Before setting about map-dowsing, therefore, we must define as specifically as possible, the target you want us to locate for you. Once this has been decided, the Geodiviner focuses his or her mind on the representative relationship between the map and the real area of the Earth's surface that is identified thereby, to the extent that in his or her mind they become a unified reality.

We then apply a series of goal oriented scanning and probing techniques, covering the whole survey area in as much detail as is required to search out and delineate all the formations and structures that match the target. (If the ideal target can't be found, we may re-calibrate to find the very best that is available.)

Detailed map-dowsing typically achieves high resolution limited only by the scale of the map. In the 1:2500 scale accuracy to 2.5m can be achieved, with a variable multi-directional scan line density of 1000-3000m / hectare, and with areal survey rates of about 10-30 hectares / hour.

Map-dowsing is done using a variety of techniques, but always with reference to an exact position on the map, and therefore also on the ground. The Geodiviner may use his or her fingertips to quickly scan a map, but for accurate work he or she will always use a pencil point in contact with the map, to mark either a fixed or moving position that relates instantaneously to the mental signals he or she transmits and receives through whichever dowsing technique is being employed at that moment.

For map-dowsing we employ a pendulum held in one hand to give us physical visual signals, instead of the two handed divining rods that we use in the field.

Most of the map-dowsing work involves horizontal scanning, which gives us a complete picture of structural features and their continuity over a wide area that is almost impossible to achieve in the field without spending several days doing it, and walking exhausting distances in the process.

Obviously there is a great saving in time and effort, and such efficiency is also very economical.

Site-specific depths and flow rates can also be measured by map-dowsing, and although we usually leave these measurements to stage 3, this ability is an important element of Geodivining training, and is especially useful for advanced 3-dimensional mapping on offshore targets and other inaccesible sites.




Part of the map-dowsing survey of the Gleneagles Estate in Perthshire, for Gleneagles Golf Developments Ltd. showing three of the intersection points chosen for detailed assessment on site, including the location near the Queens 3rd green which was chosen as the best prospect for drilling, and guaranteed for a yield of 40,000 l/hr.

Each of the dark dashes marks a positive Geodivining response for a high yielding fault or fracture zone in the bedrock. A narrow near-vertical Y-junction between two faults is thus clearly delineated, and the area in which optimum yield will be achieved is already narrowed down to a few square metres before even setting foot on the actual site. 3 successful boreholes were subsequently drilled and this one proved the best, yielding 52,000 l/hr.


Stage 3 - Target-specific Divining on-site

Armed with the Geological report and the Map-dowsing survey, we come to the site well prepared with a very clear picture of what is available across the whole survey area, and most vitally, where the best sites are, to within a few metres. The purpose of the site visit is not so much to explore as to check and confirm what we have already found by map-dowsing, to mark exact drilling locations, and to assess depths and potential yields at each location.

We start our site visits by meeting with our clients and reviewing their requirements relative to what has been found from the geological and map-dowsing surveys. Practical considerations such as proximity to power supply, convenience to points of use, accessibility to drilling equipment, and freedom from obstructions and pollution risks, may affect the choice of locations to be divined and marked on-site.

We then go out and survey each site chosen for detailed assessment, starting with the simple lateral scanning Y-rod technique; the most common traditional mode of water divining to delineate water-bearing fracture zones.

Next, with the target set to identify the point along each structure where the maximum yield will be obtainable, the source locations may be narrowed down to an area of a square metre or two, and finally to the exact points at which a vertical borehole should be drilled for the best possible result.

Once a location is marked, the Geodiviner stands on the spot and mentally drills a 'virtual borehole', counting off the depth in convenient increments as he or she does so, to establish the depth to bedrock; the depth to the first water 'strike' and any subsequent water strikes; and penultimately, the depth to be drilled to achieve the maximum attainable yield.

Then, with the location, depth and diameter of the borehole specified, the Geodiviner finally makes a careful assessment of the potential sustainable yield that should be achieved when the borehole is actually drilled.

This careful logical process takes about 30-60 minutes per location, so only a few hours are needed in the field to mark and assess all the accessible target-matching locations available to the client, and to decide which ones to recommend drilling for the best results.

Normally we prefer to go for the best available source, especially if we are guaranteeing a survey, but on some occasions the first choice is not necessarily the best source, and may be one that is conveniently located and reckoned to be good enough. In such cases the best source is always marked as a back-up site anyway.

When the fieldwork is all done, the findings and measurements from map-dowsing and divining on-site are written up in our Geodivining Survey Report, which also includes the drilling recommendations and the depth and yield estimates.

At the end of the site-survey the Geodiviner's job is done, and the chosen locations are ready for drilling.

Additional free-of-charge divining

Occasionally drilling doesn't go completely according to plan, and it becomes necessary or advisable for the Geodiviner to make reassessments of some of his measurements with reference to what has been found up to that point, to try and ensure that a successful result is achieved.

Sometimes we can advise by telephone after remote dowsing on the map or on a scaled cross section of the well being drilled, and sometimes we have to return on-site to work off the actual drill.

Some examples of such eleventh hour adjustments, and their ultimately successful outcome, are in evidence among the references from some of our clients included in these pages.

It is part of the Geodivining work-ethic to always make the effort to carefully reassess situations where expected results are not being achieved by drilling; free of charge for all surveys in the UK.

Well Logging Service

For our clients who prefer to have us on site while the drilling is done, we offer an additional and very useful well logging service. As a well is drilled, we log the rock cuttings from the drill, and the flow rate generated off the drill, to construct an informative hydrogeological profile of the aquifer.  This information is valuable for deciding when to stop drilling, what the optimum pump location depth will be, and whether any modifications to the well construction may be necessary. Having the Geodiviner on the job certainly enhances our success rate, and can also save unnecessary expense on excess drilling and materials.


 

EMAIL


EMAIL
ph: 07828-417841 / email: geodivining@hotmail.com
3 Bridge Street, Dollar, Clackmannanshire, FK14 7DF, Scotland, UK