Fiber composite sand control process without sieve tube and treatment agent formula

A fiber composite and fiber technology, which is applied in the field of fiber composite screenless sand control technology and treatment agent formulation, can solve the problems of reducing sand control effect, short resin validity period, reservoir damage, etc., so as to facilitate well workover operations and save screen costs. Effect
CN1884792AInactive Publication Date: 2006-12-27PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2006-12-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preventing sand in oil natural gas well, and the formula of relative processing agent, wherein the invention uses fiber to form three-dimension mesh structure, to control the process of discharging sand from storage layer and the formula of processing agent. The invention is characterized in that: first using crack machine and ground tube to extrude pretreatment liquid into storage layer; then using salt water clean liquid to crack; then using fiber composite to process main crack; extruding and completing sand prevention. The invention can eliminate the damage on former oil well storage layer, to improve the leakage condition; and the well eye is filled with fiber composite ring around; the invention can improve yield, realize non-screen sand prevention, and save cost.
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Description

Technical field

[0001] The invention relates to an oil well sand control process in the field of petroleum and natural gas exploitation technology and a treatment agent formula used in sand control construction, in particular to the use of fibers to interlock to form a three-dimensional network structure in the workover process of loosely cemented oil and gas reservoirs , technological measures to control sand production in reservoirs and formulations of treatment agents used. Background technique

[0002] At present, oil well sand control technologies are mainly divided into three categories. 1. Adopt mechanical sand control, such as Chinese Patent Publication No. 2637724; 2. Use chemical resin for chemical sand control, such as Chinese Patent Publication No. 1168407; implement filling technology for sand control, such as Chinese Patent Publication No. 2530030. Sometimes a combination of various methods is used to achieve a certain sand control effect, but these sand contr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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