tory burch white flats Henan Oilfield polymer floo

lin06900

Henan Oilfield polymer flooding reservoirs of different types of research and application

Degree of 2000 ~ 2500mg / L, concentration of crosslinker in 12001500mg / L, the bottle into the gel strength at 10 × 10mPa ・ S above, the static gelation time 12 ~ 24h, the cores are static dynamic gelation time gelation 9 times more time . Indoor synthetic compound crosslinker crosslinker to overcome the above shortcomings, has asked the gelation time and gel strength can be artificially controlled into the merits,[link widoczny dla zalogowanych], while the fresh water of different oil field has little effect on the composite cross-linking agent, to facilitate on -site application. Conditions of temperature, salinity of reservoir is divided into 9 types, ranging from 20 ℃ to 120 ℃, when the reservoir temperature is less than 6O ℃ to Cr when the crosslinking system used as the main compound linked profile agent, the following two Door H2 Ⅱ Ⅲ oil group, the ancient city of secretion 123. When the temperature is higher than 60 ℃, with the crosslinking system as the main phenolic compound profile crosslinking agents, such as oil group Ⅲ Shuanghe, IV1-3 layer system , the upper river area Ⅶ Department and so on. 2.3 The physical properties of reservoir parameters of the concrete into the main due to the high water level is the main purpose of layers of polymer flooding, polymer flooding before the overall profile it is necessary to improve the injection profile, but also to achieve deep fluid shift while adjusting the plane and layer, layer contradictions. Following large doses of ideas, integrity, strength is combined with different formulations and more slug injection method, the first Cypriot to adjust the layer of Sec and plane-based conflicts (intensity relatively low, accounting for the amount of 809 designs / 6), the third slug to adjust the main contradiction between layers (relatively high intensity, representing the amount of the 20 designs), the specific prescription strength and physical properties of reservoir capacity to determine the design (Table 3). Such as rivers and reservoirs V on the temperature, the permeability, layer, surface layer of non-greater than the mean characteristics of profile control agent selected high-dose formulations, low-intensity, organic system. Shuang Ⅲ oil group has high temperature, the permeability, greater than the mean interlayer layer, flat features, select the profile control agent high-dose formulation of medium intensity, organic system. Shuanghe Ⅳ oil group has high temperature, the permeability, greater than the mean level of non-planar, the layer characteristics, profile control agent selected high-dose formulations, organic system, intensity adjusted to different positions plane. Ⅱ Ⅲ next two oil groups have low temperature, high permeability ,[link widoczny dla zalogowanych], layer mean greater than non-planar, layer characteristics, profile control agent selected high-dose formulations, inorganic system, the intensity is relatively strong. Liu rich state and so on. Henan Oilfield polymer flooding reservoirs of different types of research and application of different types of Reservoirs in Table 3 before polymer formulations and design parameters of profile field application channeling 3 Dam Road profile recognition for analysis and evaluation to achieve the transfer of polymer flooding Profile Control in the application of different types of quarry reservoirs, according to the actual evaluation identified two cases: ① If the amount of injection rate of 80 to meet the design, the unit output of liquid polymer injection concentration is less than one year the concentration of Polymer 10,[link widoczny dla zalogowanych], view profile reached a contradiction and to improve the layer plane contradictory purposes. ② If the scene from different types of polymer flooding reservoir production analysis, the profile of the five polymer blocks into the volume to meet the design requirements for three years without significant polymer polymer injection channeling phenomenon (Table 4), while from the injection profile see (Figure 1), strong absorbent layer are blocked, start a new layer, vertical differences in water was controlled to achieve the improvement of basic water profile, the design in deep injection dosage reached 100, the Department of flow injection profile reflects the shift block purpose, the formula is appropriate. Table 4 after different types of reservoir effluent concentration profile changes lo08060200_.. 269...]. 6. _..... n.... Well well layer thickness well water layer thickness difference between the new start a good layer of absorbent layer V increased profile in Figure 1 before and after river water section 4 conclusions and understanding compared to the late development of oil production decline to reverse the adverse situation for different types of reservoirs by to carry out deep profile and a combination of polymer flooding \ 47, deep profile and a combination of polymer flooding \ adopted by the three oil blocks to 11 × 10t,[link widoczny dla zalogowanych], so that the total oil production decline to slow from 8 to 11 3 to 4, and formed a series of different types of profile control agent reservoir formulation. References Ei] Peng Ke Ying, Xu Lili, PENG, et al. Combination of flooding technology development prospects and field application of EJ]. Petroleum Exploration and Development,[link widoczny dla zalogowanych], 2004,27 (3 ) :60-64E2] Liu Zhenyu, LI Huai Zhang, HE Da Marina. Oil production EM]. Beijing: Petroleum Industry Press, 2001:357 ~ 359 Editor: Peng Gang
More articles related to topics：

tory burch shoes Lvaco appearance and size of wire

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]