Northwest mining three main units to consolidate the basic plate for stable production

News from China Petrochemical News Network Since the beginning of this year, in the face of the increasing difficulty in stabilizing production due to rising bottom waters, the No.
3 Oil Production Plant of Northwest Oilfield has taken the decline of the main unit as the main battlefield for stabilizing and increasing production, and is fully committed to the main fault oil and gas in the fault solution reservoir.
The 21 high-yield units with high unit reserves and production capacity are generally enriched with no interlayers in the middle, and the natural decline rate of large units has been reduced from 1.
8% at the beginning of the year to the current -2.
28%
.

After discovering abnormal flow pressure fluctuations in the high-yield well groups TK874CH, TK894X, and TK822CH, the analysis concluded that the wellheads had sporadic water breakthroughs, and the risk of bottom water breakthrough in the well groups increased.
The technicians timely analyzed regional geological characteristics and found that the bottom water of the well groups was rising along the fault.
, Combined with the calculation of the flow potential, it was decided to carry out the extraction and drainage of the well TK742 near the water source end of the fault to slow down the coning velocity of water bodies such as the oil well TK874CH
.

Since the implementation of the pump upgrade for extraction and drainage of the TK742 well, the overall flow pressure and water cut of the production well groups TK874CH and TK894X have shown a downward trend, effectively delaying the uplift of bottom water and maintaining a balanced development of the well group
.

While actively adjusting the flow trend of well groups, technicians adjusted and governed large units in time based on actual changes in production, and gradually formed the "1416" high-yield well management model, the construction of a three-dimensional well pattern technology for tapping remaining oil, and geological engineering integrated plugging.
Water treatment technology
.

　　(Shi Libin and Liu Hongyuan)