Method of Evaluation of Deposits and Opening of Productive Formations

a technology of production formations and methods, applied in the mining industry, can solve the problems of no longer operating oil or gas, and achieve the effect of costing the quantity of oil

Inactive Publication Date: 2014-01-16
ARGOSY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a new method of oil or gas recovery by evaluation of deposits and opening of productive formations in "old" oil and gas wells. This involves locating a previously drilled well, investigating at least one formation, determining productive and non-productive zones, and skipping the non-productive zones. The non-productive zones can then be hydrosolotted to produce unloaded regions and allow oil or gas to flow again. The method can be performed using radioactive or nuclear logging methods and the results can be used to determine the cost-effectiveness of oil or gas extraction from each zone. Overall, this method improves the efficiency and accuracy of oil or gas recovery from previously drilled wells.

Problems solved by technology

At the present time there are main oil and gas wells which were previously drilled, from which oil or gas were extracted and they are considered as depleted of oil or gas and thereby are no longer in operation.

Method used

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  • Method of Evaluation of Deposits and Opening of Productive Formations

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Embodiment Construction

[0010]In accordance with the present invention a method is proposed for recovery of oil or gas from wells which were used previously and are not used anymore, with the utilization of evaluation of deposits and opening of productive formations in recovery of oil or gas from such wells. In the present invention a previously drilled well 1 from which oil or gas were previously extracted and which is no longer in operation.

[0011]At least one formation 2 in the previously drilled well 1 from which oil or gas was previously extracted, is then investigated. The carried out investigation determines in the at least one formation 2 at least one first zone 3 which is not productive for oil or gas extraction, and at least one second zone 4 which is productive for oil or gas extraction. Then in the at least one formation 2 the at least one first zone 3 which is not productive for oil or gas extraction is skipped. To the contrary, hydroslotting is performed in the at least one formation 2 in the ...

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Abstract

In a method of evaluation of deposits and opening of productive formations in recovery of oil or gas, a previously drilled well is located and investigated to determine at least one first zone which is not productive for oil or gas extraction and at least one second zone which is productive for oil or gas extraction; the at least one first zone which is not productive for oil or gas extraction is skipped, while hydroslotting is performed in the at least one second zone by making a plurality of slots and thereby producing unloaded regions so as to provide again a flow of oil or gas in the previously drilled well which was not in operation.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a mining industry and in particular to oil of gas exploration and extraction.[0002]At the present time there are main oil and gas wells which were previously drilled, from which oil or gas were extracted and they are considered as depleted of oil or gas and thereby are no longer in operation. In view of scarcity of oil and gas, these wells can attract certain interest to make attempts to recover additional quantities of oil or gas therefrom. It is believed that some methods which have been used for this purpose can be further improved scarcity of oil and gas even these wells attract certain interestedSUMMARY OF THE INVENTION[0003]Accordingly it is an object of the present invention to provide a new method of oil or gas recovery by evaluation of deposits and opening of productive formations in “old” oil and gas well, which is a further improvement of the existing methods.[0004]In keeping with these objects and with oth...

Claims

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Application Information

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IPC IPC(8): E21B47/003E21B43/11
CPCE21B43/114E21B47/11E21B49/00
InventorMARMORSHTEYN, LEONMOULER, PETER
OwnerARGOSY TECH