«Equipment and technologies for oil and gas complex»

Methods for preventing the negative impact of drilling fluids absorption on wells productivity

UDC: 622.276
DOI: -

Authors:

¹ LUKOIL-Engineering, Tyumen, Russia

Keywords: geological-technical measures, bottom-hole zone, well-bottom zone treatment, productivity, skin factor, colmatation, killing fluid, shut-off valve

Annotation:

One of the current problems when developing oil fields is to maintain of producing wells productivity over a long period of time. The authors of the article consider the problem of reducing wells productivity resulting from conducting routine and major repairs. Based on the experience of domestic and foreign companies in solving the problem under consideration, a list has been determined and a comparative analysis has been performed of the equipment designed to protect operational facilities from the effects of drilling fluids. As a result of this work, the optimal equipment has been identified based on its parameters and additional specific features, allowing for repairs without the wells killing and criteria for its applicability have been formulated.

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