南堡35-2CEP平台净化水缓冲罐存在问题及改造措施

The defects and the measures of transformation on water buffer tank of NanBao35-2CEP

南堡35-2油田属于高粘重质油油田,油田CEP平台处理B平台热采井采出液的难度大.含油污水进入净化水缓冲罐后,造成顶部浮油聚集、底部沉积污泥.目前净化水缓冲罐内没有底部排污管线,只有固定式单管收油装置,且操作复杂,排油效率低.由于收油及排污不彻底,净化水缓冲罐净化水含油基本上比核桃壳滤器出口含油高4～7ppm.因此,需要对净化水缓冲罐内增加浮动式收油装置和底部排污管线,来达到提高注水水质的目的.

NanBao35-2 oil field belongs to the high viscosity of heavy oil fields. 35-2 oil field as the southeast area 13 thermal expansion of the scale, thermal recovery well flowback fluid into the CEP process, processing is difficult, but after entering water buffer tank, oily wastewater and the oil accumulation, from the top to the bottom sediment sludge. Currently water buffer tank only stationary single pipe receiving device, not at the bottom of the drain pipe; And stationary single pipe receiving device when re- ceiving the liquid level control, operating difficulties, low oil discharge efficiency, Due to receiving and sewage is not complete, purifying water buffer tank sewage oil basically is higher than walnut shell filter oil export 4 to 7 PPM. Therefore, we need to increase the water buffer tank floating at the bottom of the receiving device and sewage pipeline, to achieve the purpose to improve the quality of the water injection.