ARTICLE
TITLE

Choice of optimal technological operation mode of off-shore gas-condensate wells exploited in complicated conditions

SUMMARY

The object of research is a new method for the approach to control the optimal technological regime of gas and gas condensate wells. It is noted that in order to optimize the technological regime of the well, by extracting liquid and solid particles, it is necessary to know the minimum value of gas production or gas flow rate, which, in turn, is provided by determining the corresponding value of the bottomhole pressure. To determine the bottomhole pressure at which the well reaches the optimal operating mode, an equation is obtained that has a complex structure with respect to the bottomhole pressure (pressure in the elevator shoe), for the solution of which the graphoanalytical method was used. The proposed method for optimizing the operation of gas and gas condensate wells was tested on the basis of actual data. And it is shown that it is possible to determine the optimal operating mode of gas and gas condensate wells by determining bottomhole pressure values at which liquid and solid particles are transported from the bottom of the wells to the earth's surface. In this case, the initial data for wells (No. 652 and 704) operated on the VII horizon of the Sangachal-Sea-Duvanny-Sea-Khara-Zira (Azerbaijan) field is used to determine their technological regimes. It is shown that it seems possible to increase the productivity of offshore gas and gas condensate wells by changing the design of their lifts and the proposed method allows to extract liquid and solid particles from the trunk to the earth's surface. For each case, the particle deposition rates in the gas medium and the gas flow rate in the elevator shoe were calculated. Judging by the value of the difference in the determined particle deposition rates and gas flow in the elevator shoe, the possibility of the formation of liquid plugs in the well is established. If a situation arises when the gas flow rate does not ensure the extraction of liquid particles on the earth's surface, it is proposed to change the diameters of the lifting pipes.

 Articles related

Aditya Indarto,Ruslan Arief    

Fire Assistance Operations are assistance to elements of the Army troops that dock in enemy areas with several elements such as Infantry and armored units in the form of firing ground artillery fire, artillery ships and attack aircraft hunters as well as... see more


Andrii Bubela    

The object of research is the process of a comprehensive assessment of the qualitative state of a waterlogged section of a road. Natural and climatic factors affect the state of the road due to changes in the conditions of the water-thermal regime and th... see more


Yevhenii Kubiuk,Kostiantyn Kharchenko    

The object of this research is distributed systems under the control of an orchestrator based on the data flow control paradigm, as well as microservice management methods. One of the most problematic places of modern distributed systems is the choice of... see more


Olexandr Turovsky    

The object of the article is the process of evaluating the possibilities of a combined synchronization system with open (compensating) connection to minimize the phase error variance under the influence of additive Gaussian noise.The issue of improving t... see more


Georgii Prokudin,Alexey Chupaylenko,Viktoriia Lebid,Tetiana Khobotnia    

The object of research is the processes of managing the functioning of international transport corridors and projects for the transportation of goods, taking into account the assessment of the quality of transport services. There is a problem of assessin... see more