Pipeline Inspection Gauge ( PIG )

The use of Pipeline Inspection Gauge “PIG”, allows for the pipeline operator to perform required maintenance operations without stopping the flow of product in the pipeline.  Modern PIG’s use sophisticated instruments to collect pipeline data and often require the use of onboard batteries to power the electronics.  In addition, due to the various location of pipelines and pipeline materials/thickness, the onboard electronics not only need to store the data for the duration of the service, but utilize locational technology to correlate the acquired data.

As government regulations start requiring more frequent inspections and the increase in sensors/data on the PIG, the use of high energy and reliable batte3ries are required to meet the growing power demand.  Coupled with operating temperature environments’ above 100°C lithium non-rechargeable batteries are the technology of choice.

Chemistry

Lithium Thionyl Chloride (Li-SOClO2)–   With its stable operating voltage (3.67V OCV), high energy/power capability and wide operating temperature capability (-55°C to 225°C), Li-SOClO2 has been the chemistry of choice for the oil/gas industry for the past 20 to 30 years. Engineered Power manufactures the Li-SOClO2 chemistry for PIG applications primarily in DD cell sizes with high power/energy capabilities:

Cell SizeModelLength(Inch)Diameter(inch)Max Temperature (C)Rated current (mA)Capacity(AH)Download Brochure
DDLIRDD-CFXII5.031.25110100034Download
DDLIRDD-HT-CFX5.031.2515075032Download
PIGLIRDD-5-1-CFXII4.411.3110100032Download
PIG DLIRD-5-12.431.308525015Download
PIG DDLIRDD-5-14.411.309550031Download

Lithium Carbon MonoFlouride (Li-CFx) was developed in the 1970’s and has been utilized in numerous consumer and aerospace/defense applications. With its high temperature stability & energy density, long life and enhanced safety, Engineered Power has tailored the Li-CFx chemistry for MWD applications. However with a lower operating voltage (3.2V OCV) than LiSOClO2, Engineered Power works with our customers to analyze battery voltage and envelope constraints.

Currently Engineered Power offers the following cells with the Li-CFx chemistry: