• Model NO.：RD
• Trademark：techcore
• Origin：China
• HS Code：8431431000
• Production Capacity：5000 Set,Year

Basic Info.

Model NO. RD Trademark techcore Origin China HS Code 8431431000 Production Capacity 5000 Set/Year

Product Description

Well Testing    Downhole Drill Stem Testing(DST) Tools

A properly conducted well test is a temporary completion of a well to acquire dynamic rate through time, pressure, and fluid property data. The well test often indicates how the well will perform when it is subjected to various flow conditions. An analysis is usually performed on the data to determine reservoir parameters and
characteristics. Production decline may be predicted using these parameters and characteristics. The production decline can be used to predict cash flow. Once cash flow is known, improved drilling, completion, and production decisions can be made on this well and other wells in the field. Well test objectives can be classified as short term or long term.
• Short-term well test objectives typically involve gathering and analyzing sufficient well data to obtain a description of the reservoir system in the vicinity of the wellbore.
• Long-term well test objectives focus on gathering and analyzing data to obtain a complete description of the reservoir. The test time required to satisfy the test objectives varies for each reservoir. These test times are directly related to the testing costs and data needed.
The well testing and sampling operation is typically accomplished with an assortment of test tools. The basic downhole test tools required for a well test include:
• Reversing valve
• Tester valve
• Samplers
• Gauges (pressure and temperature recorders)
• Packer
• Tubing conveyed perforating guns  

CHAMP Packer -15K Retrievable Packer
The CHAMP Packer is improved from RTTS Packer. Compared
with RTTS Packer, the CHAMP Packer has a concentric bypass.
The CHAMP Packer has the capability of circulating below the
packer and other parts have the same function as RTTS Packer.
While going in the hole, the bypass is held open until slips are set
by the J-Slot that controls the mechanical slips.
Each assembled tool includes the following components:
• J-slot mechanism
• mechanical slips
• packer elements
• hydraulic slips
• bypass
 Specification

Size	Connection
5" 11.5-15#	2 7/8" CAS BXP
5" 18-21.4#	2 7/8" CAS BXP
7" 41-19.5# 6 5/8" 28-32#	3 1/2" IF BXP 3 7/8" CAS BXP
7" 17-26#	3 1/2" IF BXP 3 7/8" CAS BXP
7" 29-35#	3 1/2" IF BXP 3 7/8" CAS BXP
7" 38#	3 1/2" IF BXP 3 7/8" CAS BXP
9 5/8" 29.3-40#	4 1/2" IF BXP
9 5/8" 43.5-58.4#	4 1/2" IF BXP
9 5/8" 59.4-75.6#	4 1/2" IF BXP