1. TECHNOLOGY FOR DEVELOPMENT OF A MASSIVE TYPE INHOMOGENEOUS DEPOSIT WITH GAS-OIL AND WATER-OIL CONTACTS
- Author
-
Dmitriy S. Leontev, Yuriy V. Vaganov, Denis V. Shalyapin, Adelya D. Shalyapina, and Maria I. Zhigalkovskaya
- Subjects
hard-to-recover reserves ,horizontal well ,cenomanian tier ,pokurskaya formation ,gas-oil contact ,water-oil contact ,heterogeneous deposit ,Engineering geology. Rock mechanics. Soil mechanics. Underground construction ,TA703-712 - Abstract
Relevance. Today due to the entry of most large oil fields into the late stage of development, as well as the increase in the share of hard-to-recover reserves, non-standard methods of increasing oil recovery, characterized by increased controllability, energy efficiency and environmental friendliness, are becoming increasingly popular. For hard-to-recover reserves, which are characterized by complex geological features, expressed in the heterogeneity of reservoir layers, low filtration and capacitance properties, controlled physical impact on filtration processes will allow targeted impact on zones with residual reserves. Objective: to develop an effective technology for increasing the coefficient of oil recovery of a massive type deposit composed of an inhomogeneous terrigenous reservoir with the presence of gas-oil and water-oil contacts. Object: massive type deposit composed of an inhomogeneous terrigenous reservoir, with the presence of gas-oil and water-oil contacts. Methods: analysis of modern scientific and technical literature and production reports on the results of the application of various technical and technological solutions to increase the flow rate of wells and reduce the water content of products; the proposal of a new technology for the development of heterogeneous deposits of massive type with gas-oil and water-oil contacts. Results. The authors have proposed the technology for the development of an inhomogeneous deposit of a massive type with gas-oil and water-oil contacts. The technology will improve the efficiency of oil production by increasing the coverage area of the deposit in the oil-saturated part of the reservoir. The novelty lies in the system of placing producing wells with a horizontal end with inclined branches relative to the levels of water-oil and gas-oil contacts in massive deposits, as well as the direction and sequence of drilling of inclined branches from the zones of gas-oil contact and water-oil contact.
- Published
- 2022
- Full Text
- View/download PDF