Changqing Oilfield reached new high in oil and gas production
Changqing Oilfield reached new high in oil and gas production
BEIJING, China -- By the end of 2014, Changqing oil field produced 25.04 million tons of crude and 38.15 Bcm of natural gas, totaling 55.45 million tons of oil equivalent, a net increase of 3.5 million tons of oil equivalent over the last year.
Changqing oil field is located in the Ordos basin and is characterized by complex geological structures; highly dispersed and tight reservoirs; and great challenges in development. The oilfield holds multiple types of reservoirs, mainly structural, lithologic and tight sandstone reservoirs.
Most of the reserves are contained in low permeability, ultra-low-permeability, and super-low-permeability reservoirs. Aiming at increasing output per individual well, 19 unique technologies in 6 series have been developed, namely quick reservoir evaluation, optimization of effective displacement systems, staged fracturing stimulation of horizontal wells, surface process optimization and streamlining, low-cost drilling and production package, and horizontal well development. These have enabled Changqing to effectively tap its ultra-low-permeability reservoirs.
