| 1. | A new model for calculating ultimate injection - production well spacing in low permeability reservoirs with starting pressure gradient and its application
利用启动压力梯度计算低渗油藏极限注采井距的新模型及应用 |
| 2. | Economical well spacing and technical limit well spacing must be considered when making up development plan for low permeability sandstone reservoir
摘要低渗油田开发方案设计必须同时考虑经济合理井距和技术极限井距。 |
| 3. | It is recommended to conduct injection - production tests under different spacing to decide technical limit spacing according to production well performance
现场可进行几种不同井距下的注采试验，然后根据各种井距下采油井的动态情况来定性判断低渗透砂岩油藏技术极限井距。 |
| 4. | For the purpose of ground water rights registration , the authority - in - charge shall fix the interval distance between sells according hydrologic data and well output yield and make a public announcement thereof
其属于地下水水权登记者，应根据各地地下水水文资料及井出水量，制定适当之井距公告之。 |
| 5. | If the technical limit spacing is bigger than or equal to the economical spacing , it would be feasible in low permeability sandstone reservoir and reservoir engineering plan can be scheduled on this basis
如果技术极限井距大于或等于经济合理井距，则该井距就是低渗透砂岩油藏的合理井距，油藏工程方案就可据此部署井网。 |
| 6. | The horizontal well parameter optimization method , including the economic limit production , horizontal section length optimization , well network , and distance between horizontal wells and vertical wells , et al . , has been established
建立了一套经济界限产量、水平段长度优化、井网形式和水平井与直井井距等水平井参数优化方法。 |
| 7. | Combined with the percolation theory of low permeability oil reservoirs , we derived the function of determining critical technological spacing in low permeability reservoirs , and provided the theoretical basis for determining reasonable well spacing density during the development of low permeability oil reservoirs
结合低渗透油藏渗流理论得到了低渗透油藏确定极限技术井距的公式，可为低渗透油田开发确定合理井网密度提供理论依据。 |
| 8. | The studied area is characteristic of the large denseness of well net and the small distance between wells . and there are many wells whose cores have been taken more 97 % . which offers good qualifications for analyzing of the three - dimensional structural and evolution of deposital system
研究区具有井网密度大、井距小的特点，且有多口取心收获率在97以上的连续取心井，这些有利的条件为沉积体系的三维构成特征及演化分析提供了有力的保障。 |
| 9. | It faces three big cbai1enge to implement polymer flooding in an offshore oilfield : ( 1 ) it is lace of fresh water which leads to conventional polymer could not be used ; ( 2 ) the surface of platform limits the application scale ; ( 3 ) it is hard to adjust the well pattern , the well spacing and the well completion for the optimized application requirements
在海上油田实施聚合物驱技术面临三大挑战：缺乏淡水资源，常规聚合物不能满足要求；海上平台空间有限，对注聚设备有特殊要求；井网、井距和层系调整困难。 |
| 10. | Through prediction to water cut of two individual producing oil layers of saii7 + 8 and pui1 + 2 in 501 well in close well spacing test area of daqing oil field , and verification by individual layer test data in dense well pattern test area in west part of central area , its result coincide well with actual water cut
通过对大庆油田小井距试验区501井萨7 + 8和葡1 + 2两个单采油层含水率的预测及中区西部密井网试验区单层测试资料的验证，其结果与实际含水率符合较好。 |
