Economic Evaluation of Oilfield Chemical Oil Repellent Experimental Research and Development Project.
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| Title: | Economic Evaluation of Oilfield Chemical Oil Repellent Experimental Research and Development Project. |
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| Authors: | Jun, Jiang1 (AUTHOR) jiangdan6551836@163.com |
| Source: | Chemistry & Technology of Fuels & Oils. May2025, Vol. 61 Issue 2, p447-455. 9p. |
| Subjects: | Economic development projects, Discounted cash flow, Drag reduction, Demulsification, Petroleum reservoirs |
| Abstract: | In this paper, we design and develop modified hyperbranched polyamide amine and modified hyperbranched polyethyleneimine for pressure reduction and drag reduction in low-permeability reservoirs and emulsion breaking of crude oil, respectively, in view of the exploitation problems faced by unconventional oil and gas reservoirs and old oil fields at the late stage of oil field exploitation. The results showed that the pressure reduction efficiency reached 44.46% at the injection of 2PV with the concentration of 2g/L and the measured permeability of 0.07mD in the core. The pressure reduction mechanisms of hP-SE-LH and hP-SL-LH were explored by interfacial tension and wettability. The results showed that the unique hyperbranched structure of hyperbranched polymers can be adsorbed at multiple sites to form a film on the rock surface, which can effectively reduce the capillary force and lower the dosage of pressure-reducing and dampening agents. The emulsion-breaking mechanism of CHPEI was investigated by the interfacial tension, transmittance, and average particle size. The results show that CHPEI, with its highly branched structure and high interfacial activity, can replace the original interfacial membrane of emulsion and effectively reduce the interfacial strength, which is conducive to the agglomeration and settlement of oil droplets, indicating that the emulsion-breaking mechanism is the flocculation and agglomeration mechanism and the topping-up and replacement mechanism. At the same time, this paper formulates the field development plan, combines the local market price of drilling and completion, offshore, FPSO and ancillary services, calculates the total investment of the project, and lists the investment table by year according to the development plan. Then based on this, combined with the subannual production estimate, the main operating costs and profitability analysis of the project are derived, and finally combined with the discounted cash flow analysis, the results of the economic evaluation of the project are derived. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | In this paper, we design and develop modified hyperbranched polyamide amine and modified hyperbranched polyethyleneimine for pressure reduction and drag reduction in low-permeability reservoirs and emulsion breaking of crude oil, respectively, in view of the exploitation problems faced by unconventional oil and gas reservoirs and old oil fields at the late stage of oil field exploitation. The results showed that the pressure reduction efficiency reached 44.46% at the injection of 2PV with the concentration of 2g/L and the measured permeability of 0.07mD in the core. The pressure reduction mechanisms of hP-SE-LH and hP-SL-LH were explored by interfacial tension and wettability. The results showed that the unique hyperbranched structure of hyperbranched polymers can be adsorbed at multiple sites to form a film on the rock surface, which can effectively reduce the capillary force and lower the dosage of pressure-reducing and dampening agents. The emulsion-breaking mechanism of CHPEI was investigated by the interfacial tension, transmittance, and average particle size. The results show that CHPEI, with its highly branched structure and high interfacial activity, can replace the original interfacial membrane of emulsion and effectively reduce the interfacial strength, which is conducive to the agglomeration and settlement of oil droplets, indicating that the emulsion-breaking mechanism is the flocculation and agglomeration mechanism and the topping-up and replacement mechanism. At the same time, this paper formulates the field development plan, combines the local market price of drilling and completion, offshore, FPSO and ancillary services, calculates the total investment of the project, and lists the investment table by year according to the development plan. Then based on this, combined with the subannual production estimate, the main operating costs and profitability analysis of the project are derived, and finally combined with the discounted cash flow analysis, the results of the economic evaluation of the project are derived. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00093092 |
| DOI: | 10.1007/s10553-025-01885-0 |
