The Shooting Tests of Target Perforating Ability, Performed on Cast Concrete Cylinders

• Autorzy: Habera Łukasz , Hebda Kamil , Koślik Piotr , Sałaciński Tomasz

Identyfikatory

DOI

10.22211/cejem/132066

• Języki publikacji: EN

Abstrakty

EN

In this paper, the first results of the applicability of shaped charges with a single liner, of a conical and of an axially-symmetric elliptical shape, are compared. The shaped charges were of an analogous type. The outer diameter and the height of the shaped charges were 39 and 42 mm, respectively. The mass of the explosive (flegmatized hexogen) in these charges was 27 g. The charges with the conical liner were commercially available. All liners used in these tests were made according to the same technology, as well as being of the same material, i.e. electrolytic copper. Two series of tests were carried out for shaped charges with the elliptical liner, i.e. 11 and 12 shots, with or without a distance plate between the shaped charge and the concrete shooting model (core), respectively. For comparison, 4 shots for each of these configurations were executed for commercial shaped charges with a conical liner. The distance plate was made of mild steel and its dimensions were 50×50×10 mm. All of the concrete cores used were uniform in the shape of a cylinder, with diameter 160 ±10 mm and height 1200 ±10 mm, and were prepared in a single-batch process. The tests were completed under outdoor conditions at ambient temperature. of 0.1 mm, were used to create 3D numerical visualisation of the perforation channels in the concrete cores created by the tested shaped charges. The 3D images allowed the depths to be measured, together with the volumes and degrees of uniformity of these channels. On the basis of these images, it was determined that the volume of the perforation channels created when using shaped charges with an elliptical liner were in the range 230-557 cm3, while the volumes created by commercial shaped charges were in the range 105-201 cm3. This is because charges with an elliptically shaped liner produced longer perforation channels than their analogues with conical liners. The tested shaped charges enclosing a single liner of an axially-symmetric elliptical shape assures better opening of a hydrocarbon reservoir in the downhole conditions of oil and gas wells, as compared to its analogous traditional form, with a conical liner.

Słowa kluczowe

EN

shaped charge; axially-symmetric elliptical liner; hexogen; perforation channel; concrete; X-ray computer tomography; 3D numerical visualisation

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2020
• Tom: Vol. 17, no. 4
• Strony: 584--599
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Habera Łukasz

• Oil and Gas Institute – National Research Institute, 25 A Lubicz Street 6, 31-503 Cracow, Poland

autor

Hebda Kamil

• Oil and Gas Institute – National Research Institute, 25 A Lubicz Street 6, 31-503 Cracow, Poland
• Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Branch in Krupski Młyn, 1 Zawadzkiego Street, 42-693 Krupski Młyn, Poland

autor

Koślik Piotr

autor

Sałaciński Tomasz

• Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, 6 Annopol Street, 03-236 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).