PROSPECTS OF INCREASING HYDROCARBON PRODUCTION BY DRILLING SIDE SHAFTS
Keywords:
oil and gas fields, development of deposits, technical state of wells, drilling objectAbstract
At the final stage of field development in conditions of limited investment the sidetrack drilling technology is an effective measure of hydrocarbon production intensification in Ukraine.
The problem of sidetracking technology development from cased wells is relevant for several reasons. The main of them is a significant number of inactive or low production wells. After reviewing the current status of gas development, gas condensate and oil fields that belong to PJSC "UkrGasVydobuvannya", after analyzing the dynamics of wells, gas production, and reservoir operating pressures the authors have concluded that the Shebelinske, Zahidno-Hrestischenske, Yefremovske, Melikhovske and Medvedovske fields are most promising as to sidetracking technology application.
The necessity of kickoffs and sidetracking should be technically and economically substantiated.
On the example of West-Hrestischenske field wells the gas-dynamic simulation has been completed which shows what after the positive results of sidetracking additional gas production from the West-Hrestischenske field for 15 years can reach the 48 mln.m3 of gas.
Sidetracking in the inactive and low-rate wells will significantly increase the final recovery factor of reservoirs, restore the well when other methods do not yield a positive result or technical implementation of the recovery is not possible and also reduce the number of projected wells for the infilling in the final stage of the developing.
