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Concentric type integrated test modification water injection technology and device

A concentric, technological technology, applied in the directions of measurement, production of fluid, wellbore/well components, etc., can solve the problems of low injection efficiency, low success rate, labor-intensive and other problems, and achieve the effect of convenient maintenance and operation.

Inactive Publication Date: 2010-02-17
RES INST OF PETROLEUM ENG SHENGLI OIL FIELD SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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; Three layers of injection, low injection efficiency

Method used

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  • Concentric type integrated test modification water injection technology and device
  • Concentric type integrated test modification water injection technology and device
  • Concentric type integrated test modification water injection technology and device

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Embodiment Construction

[0017] A concentric integrated measurement and adjustment water injection process, including the following sequential steps: (A) running a concentric integrated measurement and adjustment water injection process string; (B) installing a wellhead blowout preventer; (C) opening the water injection process for normal water injection, It is characterized in that it also includes (D) lowering the integrated measuring and adjusting instrument to the plug at the bottom of the water injection string; (E) lifting the integrated measuring and adjusting instrument to locate the water distribution device at the lowest level; (F) The ground control system starts the integrated measuring and adjusting instrument, and transmits the collected and stored temperature, pressure and flow data of the downhole water injection layer to the ground data acquisition and processing system, and displays them in real time; (G) the integrated measuring and adjusting instrument Adjust the size of the nozzle ...

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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....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B47/00
Inventor 孙宝全姜道勇付吉平郑金中常方瑞谷开昭姜广彬张国玉陈伟许玲玲
Owner RES INST OF PETROLEUM ENG SHENGLI OIL FIELD SINOPEC
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