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<br />.
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<br />.
<br />
<br />2
<br />
<br />completed in April 1982. After the final reports were accepted, additional
<br />
<br />review revealed potential problems of casing strength and material selection
<br />
<br />for the proposed well. To further evaluate potential problems, a set of
<br />
<br />construction specifications was developed based on Williams Brothers reports
<br />
<br />and these specifications were reviewed by two independent consultants for the
<br />
<br />drilling industry (O'Brien-Goins-Simpson & Associates and Oil Technology
<br />
<br />Service). These reviews were done in June 1983. Both reviews indicated
<br />
<br />serious problems of constructing and operating the system as designed due to
<br />
<br />casing strength and material selection. The thick and deep mass of salt
<br />
<br />(+14,000 feet) exerts unusually high stresses creating unique design problems,
<br />
<br />which the review consultants concluded were not considered in the initial well
<br />
<br />design. The tubing material selection was also questioned as for ability of
<br />
<br />handling the highly corresive brine at high temperatures and pressures. A
<br />
<br />suggested alternative was to locate a well site on the edges of the salt dome
<br />
<br />where a shallower and thinner salt formation would be encountered. Both review
<br />
<br />consultants came to essentially the same conclusions.
<br />
<br />Deep well disposal is still considered to be a more acceptable disposal method
<br />
<br />than evaporation ponds. The Bureau has decided to re-evaluate potential
<br />
<br />injection well locations and obtain another deep well disposal system design.
<br />
<br />Williams Brothers Engineering is currently re-designing a new disposal well
<br />
<br />system and answering a list of questions raised by the two independent
<br />
<br />consultants. The designs and knowledge obtained from l,i11iams Brothers and the
<br />
<br />two review consultants will be used to direct the future deep well disposal
<br />
<br />program which consists of the following stages:
<br />
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