Trapped annular pressure is caused by thermal expansion due to heat transfer and has
become one of the serious challenges to well safety. In order to assess and mitigate this risk …

Implementation of SWAG technology by means of water-gas mixtures is a promising method
of enhanced oil recovery. The use of associated petroleum gas as a gas component in the …

Реализация водогазового воздействия посредством закачки водогазовой смеси
является перспективным методом увеличения нефтеотдачи. Использование попутно …

This paper highlights field studies to determine the nature of variations in the load on the
sucker-rod string during short-term gas extraction from the wellbore annulus. The results of …

To solve problems such as additional tubing/casing load, casing deformation, and packer
failure caused by changes in annular temperature during oil and gas reservoir fracturing and …

Offshore heavy oil resources are abundant, but they have greater difficulty and higher costs
compared to onshore extraction. When crude oil flows through the seawater section, the …

Electric submersible pumps (ESP) are applied in wells where additional energy is needed to
ensure discharge of the fluid to the surface through the tubing. At the discharge side of the …

Annular pressure buildup (APB) is a major concern in high pressure, high temperature
(HP/HT) well design. High temperature hydrocarbon production increases wellbore …

An analysis of the system for stabilizing the hydrodynamic level in the wellbore is presented.
It is shown that hydraulic losses increase with increasing difference between the coordinates …

In view of the problems that there are many well control risk points and the situation is grim
of Xinjiang No. 1 gas production plant, this paper carries out the gas well integrity evaluation …