CAM20 MT Choke Valves Withstands Erosive Fracturing Flowback With No Damage Or Wear, Eagle Ford Shale Multitrim Valve Tech Report

User Manual: CAM20-MT Multitrim Choke Valve Tech Report - Eagle Ford Resource Library

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TECH REPORT
TEXAS, USA
Choke inlet pressure 		
Initial 		
3,950 psi [27 MPa]
Final

2,875 psi [20 MPa]

Flow rates
Natural gas		

1.4 MMcf/d [39,644 m3/d]

Oil		

1,500 bbl/d [238 m3/d]

Water		

Negligible

CO2 content		

1.5%

H2S content		

55 ppm

Background
After hydraulic fracturing, the fluids pumped
downhole must return to surface through a
flowback tree. These fluids can contain large
amounts of frac plug debris and other solids that
can be damaging for chokes in the tree. The choke
trim often must be replaced multiple times during
flowback, increasing costs, NPT, and the risk of
exposure to H2S, other harmful substances, and
high pressures. The operator decided to test the
durability of the CAM20-MT multitrim choke valve
with external floating sleeve (FS) trim—installed
in a 21/16-in, 5,000-psi flowback tree—on one of its
wells in the Black Hawk field, Eagle Ford Shale.

Technology

CAM20-MT Choke Valve Withstands Erosive Fracturing
Flowback with No Damage or Wear, Eagle Ford Shale
External floating sleeve trim remains unaffected by high flow rates
and pressures as well as abrasive solids in the fluid flow
The test lasted 72 hours with no shutins. The choke opening was gradually
increased from 8/64 in to 18/64 in.
During this time, the choke withstood
pressures ranging from 3,950 psi to
2,875 psi. After the test, the choke
valve was removed and subsequently
disassembled and thoroughly
inspected in the workshop. There
were no signs of erosion, corrosion,
damage, or wear, even in the lowest
part of the seat, which is exposed
to the most severe conditions due to
high fluid velocities and large debris;
the seat and FS trim were in as-new
condition. The seals were replaced
and the choke valve swiftly returned
to service so that production could
continue through the flowback tree,
a common practice in the Eagle Ford.

CAM20-MT multitrim choke valve with external
FS trim
Other company, product, and service names
are the properties of their respective owners.
Copyright © 2016 Schlumberger. All rights reserved. 16-SUR-162051

cameron.slb.com/CAM20-MT



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Keywords                        : CAM20-MT, eagle ford shale, hydraulic fracturing, chokes, multitrim, choke valve
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Title                           : CAM20-MT choke valves withstands erosive fracturing flowback with no damage or wear, Eagle Ford Shale
Description                     : CAM20-MT choke valves withstands erosive fracturing flowback with no damage or wear, Eagle Ford Shale
Creator                         : Schlumberger
Subject                         : CAM20-MT, eagle ford shale, hydraulic fracturing, chokes, multitrim, choke valve
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