US 12,529,302 B2 · System and method for deploying sensing cable into a well

Abstract

Disclosed are systems and methods of monitoring a well that includes a production tubing installed in the well and supported by a wellhead with an annulus between the production tubing and a well casing. While the production tubing remains installed in the well, a valve of the wellhead is opened to provide access to the annulus through a side port of the wellhead. A cable guide is inserted through the valve, the cable guide including a conduit for inserting a sensing cable through the cable guide. A sensing cable is inserted through the conduit of the cable guide and into the annulus through the side port. One or more parameters of the well are measured using the sensing cable and signals representative of the parameters are transmitted along the sensing cable. The signals from the sensing cable are obtained and processed using a computing system to determine the parameters.

Claims15

Dependent claims

A method of monitoring a well including a production tubing previously installed in the well and supported by a wellhead with an annulus between the production tubing and a well casing, the method comprising, after the production tubing is and while the production tubing remains installed in the well:

opening a valve of the wellhead to provide access to the annulus through a side port of the wellhead;
inserting a cable guide through the valve, wherein the cable guide comprises a conduit for inserting a sensing cable through the cable guide;
inserting a sensing cable through the conduit and out of the cable guide and into the annulus through the side port;
measuring one or more parameters of the well using the sensing cable and transmitting signals representative of the parameters along the sensing cable;
and
obtaining and processing the signals from the sensing cable using a computing system to determine the parameters.

3 more elements

A system for monitoring a well including a production tubing installed in the well and supported by a wellhead with an annulus between the production tubing and a well casing and comprising a valve controlling flow through a side port, the system comprising:

a cable guide sized to be insertable through the valve and comprising a conduit sized to allow insertion of a sensing cable therethrough;
a cable guide positioner operable to movably position the cable guide relative to the wellhead;
an injector operable to insert a sensing cable through and out of the cable guide and into the annulus through the side port of the wellhead;
and
a computing system connected to the sensing cable and operable to obtain and process signals from the sensing cable to determine one or more parameters relating to the well.

2 more elements

Dependencies are inferred from the claim text.

System and method for deploying sensing cable into a well

Life of this patent

System and method for deploying sensing cable into a well

Life of this patent

Abstract

Claims15