哈拉哈塘油田储层具有极强的非均质性,其产能分布、含水率变化及地层能量等具有明显的多样性,钻遇洞穴型储集体开发效果明显好于裂缝-孔洞型储集体,洞穴型储层以无水生产井为主,裂缝-孔洞型以波动型和暴型水淹为主.开发方式必须根据各单井控制区块实际情况进行选择,按"一井一策"进行差异化管理.

底水气藏的开发在气藏开发中占有重要地位,然而底水锥进对气藏的开发具有极大的影响。气井往往由于底水的过快锥进而被水淹停产,导致很大部分储量无法采出。而现有的排水采气方法都是考虑在气藏产水积液后进行各种措施,然而滞后的措施只能缓解而无法解除产水对气藏的巨大伤害。首次提出超前排水概念,将双层完井技术运用于底水气藏,实现早期气水同采、超前排水,抑制水锥的形成,并运用数值模拟技术进行了模拟论证。结果表明,超前排水排水量小,能够延长气藏稳产期,提高采收率,具有良好的经济效益。

In order to improve the universal prediction equation derived by Zhong Dekang for injection-production ratio curve of sandstone oilfield,this paper derives AB and CD injection-production ratio curve to predict the change pattern of injectionproduction ratio based on Wang Nutao's research results on AB and CD water drive characteristic curve and combined with the injection-production relational curve of water injection development for sandstone oilfield.The two types of curve equations indicate that the change of injection-production ratio is a function of the single value of water-oil ratio(water cut).The injection-production ratio or water cut at the late stage of reservoir development can be predicted according to the equations.The results of example application indicate that CD injection-production ratio curve is not applicable sometimes.In addition,we can get the best value n by matching the practical injection-production ratio curve with the theoretical one,conversely determining which type of water drive characteristic curve can be used to describe the reservoir development performance preferably.

The basic theory and thought of grey association analysis are introduced.The correlation coefficient,correlation degree and weight coefficient are obtained more reasonably and accurately through quantification of resolution coefficient.Taking X fault-block reservoir for example,five static and dynamic parameters which can influence remaining oil distribution are selected as evaluation index to expound the computation process of weight coefficient of each parameter and own grading,and a comprehensive score for remaining oil distribution is obtained.The evaluation result coincides with the actual production,which proves that this method can be applied to the remaining oil distribution evaluation in the later development.

Water blocking generally exits in tight gas reservoir, which impacts production severely, water blocking experiment is carried out by using real rock core to study influencing factors, which includes average pore throat radius, drawdown pressure, the sort and content of clay mineral and relative permeability curve conformation. The conclusions show that reservoir permeability and the sort and content of clay mineral are the most important factors impacting exploration.

Bottom water coning is the main reason which results in a poor development effect for thin oil reservoir with bottom water. However,Dual completion and oil production with drainage can increase production potential. Integrated reservoir parameters of Hutubihe K1h23 reservoir in Lu 9 wellblock,Luliang Oilfield,the lower limit of oil layer thickness for effective drainage and production under the condition of ideal single-well model has been studied by application of reservoir numerical simulation.The research results are constructive to the similar reservoirs' development.

In the development of the thin oil reservoir with bottom water, the phenomenon of bottom water coning easily occurs because of the sufficient energy of the bottom water, which will leads to the bad development result of the thin bottom-water reservoir. The bilayer well completion-water drainage-oil production technology can inhibit the bottom-water coning to tap the productive potential of the reservoir and improve the development result of it. Based on the principle of the technology and the reservoir parameters of K 1h 2 3 reservoir of Hutubihe Formation in Lu9 well block of Luliang Oilfield, the influence of the impervious interbeds on the water drainage-oil production performance is researched under the condition of ideal single well model using reservoir numerical simulation technique. The numerical simulation results show that the effective baffle plate can inhibit the bottom water coning, but there is a certain relationship between the size of the baffle plate and the scale of the water drainage. The results in this paper have a reference for the development of similar reservoirs.

Water coning is the main reason which results in the bad development effectiveness of the thin oil reservoir with bottom water.Dual completion drainage and production can liberate the production potential of the reservoir.At the base of the technique's fundamental and associating with the reservoir parameters of Hutubihe K1h23 reservoir in Lu9 borefild of Luliang Oilfield,applying with numerical reservoir simulation technique have researched the influence of the permeability of water/oil bed on drainage and production under the condition of ideal single well model.The results have a guide intention for the similar reservoir's development.