INVESTIGATION OF THE INFLUENCE OF THE LOWERING DEPTH OF DOWNHOLE SUCKER-ROD PUMPS ON THE DELIVERY FACTOR

ETM - Equipment, Technologies, Materials Pub Date : 2022-10-03 DOI:10.36962/etm12042022-52

Ilqar Ahmadov, Sabina Tagiyeva Ilqar Ahmadov, Sabina Tagiyeva, Samira Mansurova Samira Mansurova

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Abstract

It is well known that, at present, late stage fields are operated mainly by sucker-rod pumps. The pumps are usually operated in rather complicated technological and hydrodynamic conditions, strongly influencing its efficiency. In the article the possible influence of downhole sucker-rod pump (DSRP) depth on delivery factor that is one of the indicators of operating efficiency of the entire sucker-rod pumping unit is investigated on the basis of actual field information. The values of oil and water delivery coefficients were calculated and functional dependence on the depth of sucker-rod pump immersion was built. The results showed an increase in the oil supply coefficient and a decrease in its water supply coefficient in the considered ranges of values. Mathematical models of the dependencies were also obtained. As a result of the conducted research, the expediency of the controlled increase of the depth of suspension of pumps in the conditions of operation of the considered field is confirmed. Keywords: down-hole sucker-rod pump, delivery ratio, well operation, pump parameters, depth of pump suspension

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井下抽油杆泵下放深度对输送系数影响的研究

众所周知，目前晚期油田主要采用抽油杆泵进行作业。水泵通常在较为复杂的工艺条件和水动力条件下运行，严重影响其效率。本文根据现场实际资料，探讨了井下抽油杆泵深度对整个抽油杆机组运行效率指标之一的产油系数可能产生的影响。计算了采油系数和采水系数的取值，并建立了随抽油杆泵浸入深度的函数依赖关系。结果表明，在考虑的取值范围内，供油系数增大，供水量系数减小。建立了依赖关系的数学模型。研究结果表明，在考虑的油田运行条件下，可控地增加泵停深是可行的。关键词:井下抽油杆泵，产量比，井况，泵参数，泵悬挂深度

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ETM - Equipment, Technologies, Materials

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