A combined implementation pipe string and method for fracturing and water control production

Abstract

The invention provides a joint implementation tubular column for fracturing and water control production and a method. The joint implementation tubular column comprises a tubular column body, a hanging packer arranged at one end of the tubular column body, a ball seat arranged at the other end of the tubular column body, a plurality of open hole packers, a plurality of self-closed fracturing sliding sleeves and a plurality of open-close type inflow control devices, wherein the open hole packers, the self-closed fracturing sliding sleeves and the open-close type inflow control devices are arranged on the tubular column body and located between the hanging packer and the ball seat. The self-closed fracturing sliding sleeves and the open-close type inflow control devices are separately arranged between every two adjacent open hole packers, and the self-closed fracturing sliding sleeves and the open-close type inflow control devices are arranged between the ball seat and the open hole packers which is most close to the ball seat. Through the joint implementation tubular column, the water control production can also be realized when the depth of an oil well is deep, and oil production of oil well with the deeper depth is improved.

Description

technical field [0001] The invention belongs to the field of oil and gas exploitation equipment, and in particular relates to a pipe string and method for combined implementation of fracturing and water control production. Background technique [0002] Staged fracturing completion technology is a commonly used oilfield stimulation method, which can significantly increase the permeability of the reservoir to achieve the purpose of increasing oil well production. After the staged fracturing operation, in order to solve the problem of difficult water control in the later stage of production in the prior art, it is mainly by setting a switchable fracturing sleeve on the pipe string, and inserting the coiled tubing with the switch tool into the pipe string Zhonglai can selectively open or close the switchable fracturing sleeve to realize water production control. However, when the depth of the oil well is relatively deep, for example, when the depth of the oil well exceeds 7,500...

AI Technical Summary

Problems solved by technology

However, when the depth of the oil well is relatively deep, for example, when the depth of the oil well exceeds 7,500 meters, due to the limitation of the length of the coiled tubing and the strength of the material, the above water control method is no longer applicable, so that the oil well with a depth of more than 7,500 meters cannot achieve water control. production, resulting in lower oil production from such wells

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