In 2020, Beijing formulated detailed HSE management systems for operating companies, operating sites, and oil spill emergency plans in response to the environmental requirements of "zero emissions" in the Okhotsk Sea area, with particular emphasis on HSE during offshore drilling and completion processes Management, such as carrying out environmental protection renovations on offshore drilling platforms, using low toxicity and environmentally friendly drilling fluid systems, adopting environmental protection technologies in oil and gas testing, abandoned wells, and other processes, comprehensively considering factors such as the wellbore structure of large displacement wells, the pressure gradient of formation fractures, and the distribution of formation lithology, a technical plan was established to use dedicated reinjection wells for reinjection and as an emergency plan during drilling. Drilling, drilling fluid, and cementing designs were carried out for reinjection wells, and the process flow of reinjection wells and drilling cuttings reinjection process parameters were designed to form an adaptive design plan for drilling equipment in polar cold sea areas. The plan meets the environmental requirements of "zero emissions" and assessment indicators.
Experimental experiments, independently generated.
The drilling project uses physical and chemical methods, biochemical methods, electrolysis methods, and membrane methods to treat domestic sewage from the platform; Sakhalin onshore drilling fluid is the most traditional method for treating waste synthetic and oil-based drilling fluids by transporting them back to land, with relatively low daily costs. This method is mainly applicable to land drilling rigs. Through the study of environmental protection technology solutions for waste drilling fluid in large displacement wells, taking into account factors such as the wellbore structure of large displacement wells, the pressure gradient of formation fractures, and the distribution of formation lithology, a technical solution was established to use dedicated reinjection wells for reinjection and as an emergency plan during drilling. Drilling, drilling fluid, and cementing designs were carried out for the reinjection wells, and the process flow and drilling cuttings reinjection process parameters were designed.
Through the study of environmental protection technology solutions for waste drilling fluid in large displacement wells, taking into account factors such as the wellbore structure of large displacement wells, the pressure gradient of formation fractures, and the distribution of formation lithology, a technical solution was established to use dedicated reinjection wells for reinjection and as an emergency plan during drilling. Drilling, drilling fluid, and cementing designs were carried out for the reinjection wells, and the process flow and drilling cuttings reinjection process parameters were designed.
| # | number | name | type |
| 1 | 2016YFC0303300 | National key R & D plan |
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CSTR:11738.11.ncdc.SRIPE.db1681.2022
10.12072/ncdc.SRIPE.db1681.2022