«Onshore and offshore oil and gas well construction»

Experience of using the Russian LWD complex when changing the mechanical speed of a well drilling

UDC: 622.23.05
DOI: 10.33285/0130-3872-2023-9(369)-36-40

Authors:

¹ UGNTU, Oktyabrsky, Russia
² NPF "VNIIGIS-ZTK", Oktyabrsky, Russia

Keywords: logging while drilling, induction logging, neutron-neutron logging, neutron gamma-ray logging, geo-steering, ROP

Annotation:

At present, for the effective development of the fields of the Volga-Ural oil and gas province, the reservoirs of which can be classified as complex, characterized by a high degree of heterogeneity of structure and reservoir properties, which are in the late stage of operation, it is necessary to use modern tools and methods for designing, researching and operation to achieve maximum results on the way to increase well flow rates. The LWD complex manufactured by LLC NPF "VNIIGIS-ZTK" for solving the problem of determining the reservoir resistance and its reservoir properties during drilling, consisting of gamma-ray logging, induction logging, neutron-neutron logging and neutron gamma-ray logging modules, allowing to trace reservoirs’ lithology and thickness in the direction of drilling, predict the entry point into the productive reservoir, drill the well along the most productive part of the reservoir is considered. The experience of using the logging complex in the process of drilling by LLC NPF VNIIGIS-ZTK at the fields of the Republic of Tatarstan and the Perm Territory is presented. A comprehensive interpretation of the methods of gamma-ray logging (GRL), induction logging (IL), neutron-neutron logging (NNL) allows quickly determining the reservoir properties of the reservoir and calculating the petro-physical parameters already at the stage of initial opening. The reduction of time for wells construction due to the abandonment of final logging has been substantiated.

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