NEW DRILLING METHOD, DEVELOPMENT OF HYDROGEOLOGICAL AND OIL WELLS WITH IMPLOSIVE EFFECT

Abstract

The peculiarities of the collimation zones of the productive formation are taken into account when rotary drilling of wells using drilling mud. A brief analysis of the most common and fundamentally different decollatation procedures, such as washing wells with water, pumping and gelation, is presented. A very effective and promising method of decollatation using the implosion effect has a special influence. A detailed example of a well-known device is given with an analysis of the features of its application, as well as significant disadvantages in the form of complexity and functionality, high cost. A fundamentally different new device was developed and proposed, free from all the disadvantages of the opposite device for which the invention was requested. This eliminates the use of pumping and compressor pipes and their sealing, as well as a sealant for the neck. There is also no need for a compressor and surface wiring with numerous valves. Replacing the intake valve valve with a disc valve eliminates the possibility of closing the intake valve as a result of the influx of reservoir fluid with a high content of collating materials caused by the implosion effect. The design and functioning features of the proposed device and its individual elements are taken into account both when creating a single, and with any number of repeated implosive effects. The generation limits necessary for the explosion effect of the liquid-filled space were mathematically analyzed to prevent the case from crumpling under the hydrostatic pressure of the solution remaining in the storage space. An example of the dependence of the permissible length of empty space on the thickness of the housing column and, in particular, on the thickness of the walls is illustrated using a computer program.