Steam injection pipe for oil deposit exploitation and oil deposit exploitation method

Abstract

The invention discloses a steam injection pipe for oil deposit exploitation and an oil deposit exploitation method. The method comprises the following steps of: determining the length of each segment among multiple segments of a steam injection pipe; determining the material quality and size of each segment among the multiple segments under a condition that each segment among the multiple segments is equal in heat loss; generating the steam injection pipe according to the determined material quality and size of each segment among the multiple segments; and heating an oil deposit in which a steam injection well is positioned through the steam injection pipe. Through determining that the radial heat loss values of the segments of the steam injection pipe are equal, further determining the material quality and size of each segment of the steam injection pipe, generating the steam injection pipe according to the determined material quality and size and heating the oil deposit, the oil deposit is uniformly heated by each segment of the steam injection pipe, further the steam injection effect of the steam injection pipe is improved, a steam channeling phenomenon is reduced, and further the oil extraction efficiency is improved.

Description

technical field [0001] The invention relates to an oil production process, in particular to a steam injection pipe for oil reservoir development and an oil reservoir production method. Background technique [0002] SAGD (SteamAssistedGravityDrainage, steam-assisted gravity drainage) is a super heavy oil reservoir development technology. This technology is to inject steam into the oil reservoir from a vertical well or a horizontal well above the horizontal production well near the bottom of the oil reservoir to heat the oil reservoir, and the heated crude oil and steam condensate are drawn from the horizontal well at the bottom of the oil reservoir output. This technology has the advantages of high oil recovery capacity, high oil-steam ratio, high recovery rate and low interwell interference, and this technology can effectively avoid the problem of premature interwell channeling. [0003] At present, SAGD heats the reservoir by injecting steam into the steam injection pipe....

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