Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Title: 

INVESTIGATING THE MECHANISM OF WATER INFLOW IN GAS WELLS IN FRACTURED GAS RESERVOIRS AND DESIGNING A CONTROLLING METHOD

Type: PAPER
Author(s): JAFARI IMAN*,REZAEI AREZOO
 
 *DEPARTMENT OF PETROLEUM ENGINEERING, SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Name of Seminar: INTERNATIONAL CONFERENCE OIL, GAS, PETROCHEMICAL AND POWER PLANT
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVONI AMOZESHI PAZHOHESHI VESTA
Date:  2012Volume 1
 
 
Abstract: 

WATER INFLOW MAY CEASE PRODUCTION OF GAS WELLS, LEAVING A SIGNIFICANT AMOUNT OF GAS IN THE RESERVOIR. CONVENTIONAL TECHNOLOGIES OF GAS WELL DEWATERING REMOVE WATER FROM INSIDE THE WELLBORE WITHOUT CONTROLLING WATER AT ITS SOURCE. THIS PAPER ADDRESSES MECHANISMS OF WATER INFLOW TO GAS WELLS IN FRACTURED RESERVOIRS AND A NEW COMPLETION METHOD TO CONTROL IT. IN A VERTICAL OIL WELL, THE WATER CONE TOP IS HORIZONTAL, BUT IN A GAS WELL, THE GAS/WATER INTERFACE TENDS TO BEND DOWNWARDS. IT COULD BE ECONOMICALLY POSSIBLE TO PRODUCE GAS-WATER SYSTEMS WITHOUT WATER BREAKTHROUGH. NON-DARCY FLOW EFFECT (NDFE), VERTICAL PERMEABILITY, FRACTURE CHARACTERISTICS, AQUIFER SIZE, DENSITY OF WELL PERFORATION, AND FLOW BEHIND CASING INCREASE WATER CONING/INFLOW TO WELLS IN GAS RESERVOIRS WITH BOTTOM WATER.
IN THIS PAPER DOWNHOLE WATER SINK (DWS) INSTALLATION IN GAS WELLS INCLUDES DUAL COMPLETION WITH AN ISOLATING PACKER AND GRAVITY GAS-WATER SEPARATION AT THE BOTTOM COMPLETION IS STUDIED FOR REMOVING THE WATER CONING PROBLEM OF A WELL IN RESERVOIR A IN IRAN. ACCORDING TO THE RESULTS OF THIS STUDY, THE BEST DWS COMPLETION DESIGN SHOULD COMPRISE A SHORT TOP COMPLETION PENETRATING 20% - 40% OF THE GAS ZONE, A LONG BOTTOM COMPLETION PENETRATING THE REMAINING GAS ZONE, AND VIGOROUS PUMPING OF WATER AT THE BOTTOM COMPLETION. BEING AS CLOSE AS PRACTICALLY POSSIBLE THE TWO COMPLETIONS ARE ONLY SEPARATED BY A PACKER. TO SUM, IT CAN BE MENTIONED THAT DWS EXTENDS THE WELL LIFE LONGER AND COULD BE A PROPER SOLUTION FOR THE WELL-STUDIED IN THIS WORK.

 
Keyword(s): WATERCONNING, GAS WELLS, FRACTURE RESERVOIRS, DWS
 
 
Yearly Visit 40   pdf-file tarjomyar
 
Latest on Blog
Enter SID Blog