Concentric type integrated test modification water injection technology and device

Abstract

The invention provides a concentric type integrated test modification water injection technology and a device, wherein, the technology comprises the following steps: A. tripping in a test modificationwater injection technology pipe column; B. installing a wellhead blowout preventer; C. turning on the water injection flow to inject water normally; D. tripping in an integrated test modification instrument; E. tripping in the integrated test modification instrument in the test modification water distributor of the basecoat for location; F. starting the integrated test modification instrument totransmit the downhole temperature, pressure and flow to a ground data acquisition processing system; G. allocating the test modification water distributor; H. repeating the steps in F, G and H; I. repeating the steps in F-G after relocation; and J. closing the well and stopping injecting, and opening the well and injecting water after pulling out the integrated test modification instrument. The device comprises a sleeve and a test modification water injection technology pipe column, wherein, the pipe column comprises an oil pipe, the test modification water distributor thereon, a layered packer among the test modification water distributors and a screwed plug installed on the lower end. The integrated test modification instrument is tripped in the pipe column; a power cable, a winch, a ground control system and a data acquisition processing system are installed on the ground; and the power cable and the winch are in succession connected with the ground control system and the data acquisition processing system. The invention is mainly applied to oil water injection technology.

Description

1. Technical field

[0001] The invention relates to a water injection process for oil exploitation and a distributing pipe string, in particular to a concentric integrated measurement and adjustment water injection process and device. 2. Background technology

[0002] The existing concentric layered dispensing process mainly adopts the storage test method, and the steel wire is used to carry out fishing operations for many times, and the water absorption index and water absorption capacity of each layer are respectively measured, and then according to the test results, the steel wire is used to replace each layer respectively. The size of the layer of water. The disadvantages or deficiencies of this method are: ①The process is cumbersome, labor-intensive, and the number of throwing and fishing is many, time-consuming and labor-intensive; ②The accuracy of testing and deployment is low, and the success rate is low; Inject three layers, and the injection efficiency is low. 3....

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